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10-2

IM 760301-01E

10.2 NULL Function

Procedure

START

STOP

REMOTE

CAL

MOTOR

SET

CURSOR

NULL

MENU

STORE SET

MENU

LOWER ITEM

LOWER FORM

ALL

USER SET

DISPLAY

ITEM & ELEMENT

RESET

SET

PAGE

SCALING

HRM SET

MEASURE

SYNC SOURCE

AVG

LINE FILTER

FREQ

FILTER

FILE

PRINT

MISC

STORE

IMAGE SAVE

HELP

NUMERIC

WAVE

OTHERS

ITEM

FORM

U / I / P

WP/q/

TIME

USER

ELEMENT

UPDATE

RATE

HOLD

SINGLE

INTEG

LOCAL

SHIFT

To exit the menu during operation, press

ESC

located above

the soft keys.

In the procedural explanation below, the phrase “press the

cursor keys

” may be used. This phrase refers to the

procedures for selecting items and entering values and
character strings. For details on the procedures, see section
3.14.

Cursor keys

• Activating the NULL Function

Press

SHIFT

SYNC SOURCE(NULL)

. The NULL indicator to the lower left of the key

illuminates when the NULL function operates and the measured values are updated.

• Clearing the NULL Function

Press

SHIFT

SYNC SOURCE (NULL)

when the NULL function is activated.

The NULL indicator turns OFF and the NULL function is released.

Explanation

The NULL function can be used to subtract the DC offset while the external sensor or

measurement cable is connected. Execute the NULL function at no input condition

(opened current input terminal and shorted voltage input terminal).

• NULL Value

The NULL values are set to the Udc and Idc values (numeric data of the simple

average of voltage/current) as well as speed and torque (on models with the motor

evaluation function when the input signal from the sensor is analog) that were

measured the previous time when the voltage/current mode is set to DC and the

NULL function is turned ON. If the previously measured Udc and Idc as well as Speed

and Torque values do not exist, such as when the NULL function is turned ON without

making a measurement after turning ON the power, Udc and Idc are set to zero. To

subtract the DC offset using the NULL function when making measurements with the

voltage/current mode set to RMS, MEAN, or RMEAN, activate the NULL function with

the voltage/current mode set to DC and then change the voltage/current mode to

RMS, MEAN, or RMEAN.

Note

•

The NULL function is automatically released when the range or filter setting is changed or

integration is started.

•

If you perform the procedure of releasing the NULL function while in the hold condition, the

NULL function is actually released and the NULL indicator turns OFF when the hold is

released or when a single measurement is made.

•

If the crest factor is set to 3, a NULL value of approximately 50% is set for a signal that

exceeds 50% of the range. If the crest factor is set to 6, a NULL value of approximately 100%

is set for a signal that exceeds 100% of the range.

Summary of Contents for wt3000

Page 1: ...Precision Power Analyzer WT3000 IM 760301 01E 8th Edition WT3000 Manual Vol 1 3 ...

Page 2: ...ing YOKOGAWA products YOKOGAWA provides registered users with a variety of information and services Please allow us to serve you best by completing the product registration form accessible from our homepage http www yokogawa com tm PIM 103 01E ...

Page 3: ......

Page 4: ...instrument s performance and functions The figures given in this manual may differ from those that actually appear on your screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA dealer Copying or reproducing all or any part of the contents of this manual...

Page 5: ...element selectable only for the 760303 30 2 A input element selectable only for the 760303 04 30 A input element selectable only for the 760304 40 2 A input element selectable only for the 760304 Version SV Standard version MV Motor version Power cord 1 D UL CSA standard power cord F VDE standard power cord Q BS standard power cord R AS standard power cord H GB standard power cord N NBR Standard p...

Page 6: ...2 96 EC This product complies with the WEEE Directive 2002 96 EC marking requirement The affixed product label see below indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control instrumentation product Do not dispose i...

Page 7: ...1 hexagonal socket wrench 760303 3 sets with 1 hexagonal socket wrench 760304 4 sets with 1 hexagonal socket wrench Printer roll B9316FX 2 For the built in printer paper Provided only with option B5 36 pin A1005JD 1 For D A output connector Provided only with option DA User s Manual Vol 1 3 IM760301 01E 1 This manual Communication IM760301 17E 1 CD ROM Interface User s Manual Vol 2 3 CD ROM part n...

Page 8: ...42 V or less length 1 m measurement lead 366925 1 42 V or less length 2 m External sensor cable B9284LK 1 For connecting the current sensor input connector of the WT3000 length 0 5 m Conversion adapter 758924 1 BNC 4 mm socket adapter rated voltage 500 V Serial port adapter 366971 1 9 pin 1 25 pin 2 adapter 1 EIA 574 Standard 2 EIA 232 Standard RS 232 Measurement lead 758917 Alligator clip adapter...

Page 9: ...r state Grounding Failure to comply with the precautions below could lead to injury or death or damage to the instrument WARNING Use the Instrument Only for Its Intended Purpose The WT3000 is a power measurement instrument that can measure parameters such as voltage current and power Do not use this instrument for anything other than as a power measurement instrument Check the Physical Appearance ...

Page 10: ...er the Instrument Only qualified YOKOGAWA personnel may remove the covers and disassemble or alter the instrument The inside of the instrument is dangerous because parts of it have high voltages Ground the Instrument before Making External Connections Securely connect the protective grounding before connecting to the item under measurement or to an external control unit If you are going to touch t...

Page 11: ...instrument Subheadings On pages that describe the operating procedures in chapters 3 through 11 the following symbols displayed characters and terminology are used to distinguish the procedures from their explanations Procedure Follow the numbered steps All procedures are written with inexperienced users in mind experienced users may not need to carry out all the steps Explanation This subsection ...

Page 12: ...es after reading and understanding thoroughly the precautions given in sections 3 5 and 3 7 As necessary assemble the input terminal adapter see section 3 6 that is to be connected to the voltage input terminal in advance Measurement Preparation Measurement Preparation Display Measured Calculated Results Display Measured Calculated Results Measured power Integration value Voltage Current waveform ...

Page 13: ...2 35 Chapter 3 Before Starting Measurements 3 1 Handling Precautions 3 1 3 2 Installing the Instrument 3 2 3 3 Connecting the Power Supply 3 4 3 4 Turning ON OFF the Power Switch 3 5 3 5 Wiring Precautions 3 7 3 6 Assembling the Adapter to Be Connected to the Voltage Input Terminal 3 10 3 7 Wiring for Making Accurate Measurements 3 12 3 8 Guide for Selecting the Method Used to Measure the Power 3 ...

Page 14: ...Compensations 5 22 5 9 Setting the Equations for Apparent Power Reactive Power and Corrected Power 5 25 5 10 Selecting the Display Format of the Phase Difference 5 28 5 11 Integration 5 30 5 12 Setting the Manual Integration 5 35 5 13 Setting the Normal Integration and Repetitive Integration 5 38 5 14 Setting the Real Time Integration and Real Time Repetitive Integration 5 41 5 15 Turning ON OFF t...

Page 15: ...ters 9 24 9 6 Specifying the File to Be Displayed Displaying File Properties and Selecting File Attributes 9 27 9 7 Deleting Files 9 30 9 8 Copying Files 9 33 9 9 Renaming Files or Directories and Creating Directories 9 37 Chapter 10 Other Functions 10 1 Zero Level Compensation 10 1 10 2 NULL Function 10 2 10 3 Selecting the Sampling Frequency 10 4 10 4 Selecting the Display Font 10 5 10 5 Selecti...

Page 16: ...ion of Measurement Functions App 1 Appendix 2 List of Initial Settings and Display Order of Numeric Data App 4 Appendix 3 ASCII Header File Format App 13 Appendix 4 Power Basics Power Harmonics and RLC of AC Circuits App 16 Appendix 5 For Making Accurate Measurements App 24 Appendix 6 Setting the Measurement Period App 26 Appendix 7 Data Update Rate and Computing Equation App 33 Appendix 8 Compens...

Page 17: ...M760301 51E USB port Connect a USB memory or USB keyboard Rear Panel TORQUE 20V MAX 20V MAX SPEED 42Vpk MAX D A OUTPUT VIDEO OUT VGA GP IB IEEE488 SERIAL RS 232 USB EXT CLK ETHERNET 100BASE TX MEAS START 100 240V AC 50 60Hz 200VA MAX FUSE 250V T 6 3A ELEMENT VOLTAGE 1000V MAX 1000VMAX CURRENT 1 30A MAX ELEMENT VOLTAGE 1000V MAX 1000VMAX CURRENT 2 30A MAX ELEMENT VOLTAGE 1000V MAX 1000VMAX CURRENT ...

Page 18: ...1 2 IM 760301 01E Top Panel Handle Inlet holes See section 3 2 There are also inlet holes on the bottom panel Outlet holes See section 3 2 1 1 Front Panel Rear Panel and Top Panel ...

Page 19: ...e wiring system selection are selected simultaneously SHIFT ELEMENT ALL Key See section 4 1 and 4 2 Collectively sets the voltage range or current range of all installed input elements Pressing only the ELEMENT key again enables individual input elements to be configured Key and Key See section 4 3 and 4 4 Selects the voltage range the current range or the current sensor range The selected range i...

Page 20: ...rage of measured values SYNC SOURCE Key See section 4 7 Displays a menu for setting the synchronization source for each wiring unit The synchronization source defines the period measurement period over which the sample data is acquired for determining the numeric data measured values such as voltage current and power If all elements are selected with the SHIFT ELEMENT ALL key as explained on the p...

Page 21: ...lained later while showing the numeric data opens a menu for changing the number of displayed items For harmonic measurement G6 or G5 option a list showing the measured values for each harmonic order can also be selected WAVE Key See section 3 15 and 6 1 to 6 8 Displays the screen that shows the waveform Pressing the ITEM key explained later while showing the waveform opens a menu for selecting th...

Page 22: ...cting the display format according to the display type selected with the NUMERIC WAVE or OTHERS key on the previous page SHIFT FORM LOWER FORM Key See section 5 1 6 2 6 3 6 6 to 6 8 7 4 7 5 and 7 8 For details on bar graphs and vector displays option see the Expansion Function User s Manual IM760301 51E Displays a menu for selecting the display format for the bottom half of the display when two ty...

Page 23: ...the WT3000 or the selected wiring system SHIFT ELEMENT ALL Key See section 5 1 If the ALL indicator is illuminated by pressing the SHIFT ELEMENT ALL key on models with four input elements installed each time the ELEMENT key is pressed the input elements or wiring units displayed on one page switches in the following order 1 2 3 4 ΣA ΣB 1 and so on The numeric data of the selected input elements or...

Page 24: ...etting the motor evaluation function HRM SET Key See the Expansion Function User s Manual IM760301 51E Displays a menu for setting the harmonic measurement function Storing Recalling Data Saving Loading Data and Printing on the Built in Printer START STOP MOTOR SET CURSOR NULL MENU STORE SET MENU LOWER ITEM LOWER FORM ALL USER SET PAGE PAGE SCALING HRM SET MEASURE SYNCSOURCE AVG LINEFILTER FREQ FI...

Page 25: ... NULL indicator illuminates the NULL function which subtracts the DC component of the measurement circuit from the sampled data is activated Pressing the SHIFT SYNC SOURCE NULL key again turns OFF the NULL indicator and the NULL function is deactivated MISC Key See section 3 12 3 13 3 17 4 6 10 4 to 10 7 11 3 and 11 4 For details on the D A output RS 232 communication and Ethernet communication se...

Page 26: ...Synchronization source see section 4 7 Integration status see section 5 11 Page bar see section 5 1 Input element settings Measurement range see section 4 3 Wiring system see section 4 1 Voltage Current mode see section 5 2 Measurement range of motor input motor version Integration setting status see section 5 11 Data update count see section 5 1 Displays Other than Values Over range display Displ...

Page 27: ... Internal memory Store numeric data and waveform display data Recall numeric data and waveform display data PC card USB memory option CRT Recorder Numeric data Waveform display data Screen image data Store data Setup parameters Numeric data Waveform display data Screen image data Setup parameters PC Printer D A output option Output the measured values as analog voltage Network printer Ethernet int...

Page 28: ...d a current sensor input connector EXT Either one can be used at any given time The voltage signal from the current sensor that is received at the current sensor input connector is normalized using the voltage divider and an operational amplifier OP AMP It is then input to a current A D converter The current signal that is applied to the current input terminal is converted to a voltage Then it is ...

Page 29: ...asurement Mode IEC Harmonics Mode G6 Option This mode in combination with the Harmonic Flicker Measurement Software 761922 sold separately allows you to perform harmonic measurement conforming to IEC61000 3 2 Use this mode to check that the harmonics of electric home appliances and office automation equipment comply with the IEC standards Waveform Computation Mode Math Mode G6 Option This mode all...

Page 30: ...alues of the voltage or current are the total of the specified harmonic components not the values that include all frequency components 2 Can be monitored using the IEC harmonic measurement software 3 Fixed to 2 s Differences in the Harmonic Measurement of Each Measurement Mode In IEC harmonic measurement mode limitation is placed on a portion of the functions of the WT3000 as compared with the ha...

Page 31: ...lement 1 Wiring System You can specify five wiring systems single phase two wire single phase three wire three phase three wire three phase four wire and three phase three wire three voltage three current on the WT3000 to measure the power of various single phase and three phase power transmission systems For details see section 2 3 Wiring Unit A wiring unit refers to a set of two or three input e...

Page 32: ...The frequencies of voltage and current on all input elements can be measured on models with the frequency measurement add on option Measurement Functions of Wiring Units ΣA and ΣB Σ Functions The following 14 measurement functions are available For details related to the determination of measurement function data see Appendix 1 UΣ voltage average UrmsΣ UmnΣ UdcΣ UrmnΣ IΣ current average IrmsΣ ImnΣ...

Page 33: ...oot of the value is determined f t and T represent the input signal as a function of time and the period of the input signal respectively Urms or Irms 1 T 0 T f t 2 dt Umn Imn Rectified Mean Value Calibrated to the Rms Value This function rectifies one period of the voltage or current signal determines the average and multiplies the result by a coefficient The coefficient is a value that when appl...

Page 34: ...ent period is set to the entire span within the data update interval You can select which input signal will be the synchronization source synchronized to the zero crossing point of the input signal for each element You can set the synchronization source signal to the voltage current or external clock that is input to the element For details see appendix 6 1 Trigger slope refers to the movement of ...

Page 35: ... table shows the relationship between the number of installed input elements the selectable wiring system patterns and the assignment of input elements to wiring units ΣA or ΣB For example there are seven wiring system patterns on a WT3000 that has four input elements installed The input element assignment to wiring units ΣA or ΣB is determined from the wiring system pattern This allows Σ function...

Page 36: ... function Urms or Irms exceeds 110 of the current measurement range the measurement range is increased When the peak value of the input signal exceeds 330 or 660 of the current measurement range when the crest factor is set to 3 or 6 respectively the range is increased Range Decrease When the data of the measurement function Urms or Irms is less than or equal to 30 of the measurement range and Upk...

Page 37: ...s via an External VT or CT VT ratio and CT ratio The input signal can be converted into numeric data or waveform display data of the voltage or current before transformation by setting the VT ratio CT ratio and power coefficient coefficient multiplied to the power determined from the voltage and current Power factor You can multiply a coefficient to the measured active power apparent power and rea...

Page 38: ...ing to the input signal Therefore the frequency of the input signal must be measured accurately Line Filter The line filter is inserted into the voltage current and power measurement input circuit and directly affects the voltage current and power measurements see the block diagram in section 2 1 When the line filter is turned ON the measured value does not contain high frequency components Measur...

Page 39: ...ng equation Dn Mn m 1 Mn 2 Mn 1 Mn m Dn Displayed value obtained by linearly averaging m points of numeric data from the n m 1 th to nth time Mn m 1 Measured data at the n m 1 th time Mn 2 Measured data at the n 2 th time Mn 1 Measured data at the n 1 th time Mn Measured data at the nth time m Average count select from 8 16 32 64 128 and 256 Measurement Functions of Harmonic Measurement Harmonic M...

Page 40: ...e The WT3000 automatically selects the computing method from the two averaging computations below according to the data update rate For details see appendix 7 When the Data Update Rate Is 50 ms 100 ms 5 s 10 s or 20 s Computation is performed using ASSP Average for the Synchronous Source Period on the sampled data within the data update interval to calculate the measured value However integrated p...

Page 41: ... apparent power reactive power and so on is 600000 When the range rating rated value of the specified range is applied the Σ function of voltage current active power apparent power reactive power and so on is set to the decimal point position and unit of the element with the lowest display resolution of the target elements For the display resolution during integration see section 5 13 Numeric Disp...

Page 42: ...d to switch the page and the displayed items can be changed collectively Page bar The current page is highlighted Display example Displays the voltage current power and power factor of elements 1 to 4 on pages 1 to 4 Page 1 Page 2 Page 3 Page 4 Resetting the Numeric Display If the number of displayed items is set to a value other than All the display order of measurement functions can be reset to ...

Page 43: ...n be computed on devices on which the power fluctuates such as an intermittent control device The computing equation for average active power is specified using the user defined function Setting the Computing Equation for Efficiency For procedures see section 5 7 By setting equations for η1 to η4 the input output efficiency of a device can be measured For example if the input power to a device is ...

Page 44: ...for deriving the power for distorted waveforms are not defined none of the equations can be said to be more correct than the other Therefore the WT3000 provides three equations for determining the apparent power and reactive power Because active power is derived directly from the sampled data errors resulting from different definitions do not occur such as in the apparent power and reactive power ...

Page 45: ... advanced computation G6 option 2 The setup menu of the equations of S and Q is not displayed 3 If TYPE1 or 3 is selected and you select wide bandwidth harmonic measurement mode or IEC harmonics mode the equation switches to TYPE3 4 If TYPE3 is selected and you select waveform computation mode or FFT mode the equation switches to TYPE1 5 S and Q are not measured in voltage fluctuation and flicker ...

Page 46: ...erence of harmonic order 1 to 100 of the voltage and current on the harmonic measurement option is displayed using a 360 format or a 180 format negative sign for lead and no sign for lag Delta Computation See the Expansion Function User s Manual IM760301 51E Delta computation can be performed on models with the delta computation function option Equation for Distortion Factor See the Expansion Func...

Page 47: ...pere hour WQ var hour and Time integration time Measurement Functions of wiring unitsΣA and ΣB Σ Functions The following eight types of numeric data can be determined For details related to the determination of measurement function data see Appendix 1 WPΣ sum of WP WP Σ sum of WP WP Σ sum of WP qΣ sum of q q Σ sum of q q Σ sum of q WSΣ sum of SΣ and WQΣ sum of QΣ Integration Mode For procedures se...

Page 48: ...Start Integration value Hold Hold Timer value Repetitive Integration Mode Continuous Integration The integration time is set in relative time When the specified time elapses the operation is automatically reset and restarted Integration is repeated until STOP is pressed When the integration value reaches the maximum or minimum integration display value the integration time and value are held Start...

Page 49: ...e time Reset Real Time Repetitive Integration Mode Continuous Integration The start and stop of the integration operation are set with the date and time The integration is repeated at the specified timer setting during that time When the time specified by the timer elapses the operation is automatically reset and restarted The integration is stopped at the specified time or when the integration va...

Page 50: ...0 Vrms then the display range is set so that the top of the screen is 300 Vpk 50 Vrms 6 and the bottom is 300 Vpk 50 Vrms 6 with the zero input line at the center The waveform clips if this range is exceeded 1 grid 1 div 225 V 1 grid 1 div 75 V When measured at the measurement range of 100 Vrms When the same signal is measured at the measurement range of 300 Vrms Input zero line 300 Vpk 300 Vpk 90...

Page 51: ...nimum values of the waveform data in each raster Therefore the number of waveform display data points the number of points displayed on the screen is 1002 for an input signal Extraction of the waveform display data from the waveform sampling data p p compression Let us consider an example when a 2 Hz sine wave is measured at the data update rate of 1 s To display this waveform on the WT screen the...

Page 52: ...quencies due to the effects described by the Nyquist sampling theorem This phenomenon is called aliasing Aliasing signal Input signal Sampling point Retrieval of waveform display data The WT3000 retrieves waveform display data to the memory at a sampling rate of approximately 200 kS s The frequency that allows displaying of waveforms that are close to the input signal is up to approximately 10 kHz...

Page 53: ...ource refers to the signal that is used in checking the trigger condition Trigger Slope Trigger slope refers to the movement of the signal from a low level to a high level rising edge or from a high level to a low level falling edge When the slope is used as one of the trigger conditions it is called a trigger slope Trigger Level Trigger level refers to the level through which the trigger slope pa...

Page 54: ...Vpk Input zero line When the zoom factor is doubled Range displayed on the screen Vertical Position of the Waveform For procedures see section 6 5 The displayed position of the waveform can be moved vertically to the desired position such as when you wish to view the mutual relationship between the voltage and current waveforms or when the section of the waveform you wish to view goes out of the d...

Page 55: ... divided windows regardless of whether or not the display is turned ON User The waveforms can be assigned arbitrarily to the divided windows regardless of whether or not the display is turned ON Display Interpolation of the Waveform For procedures see section 6 7 The waveform display data can be connected linearly to display the waveform smoothly Linear Interpolation Linearly interpolates between ...

Page 56: ...easured and displayed It can be used to measure the voltage and current of various sections of the waveform and the data on the horizontal axis X axis Cursor measurements are performed on the data that is displayed on the screen Cursors are the and marks that are displayed on the screen The vertical value and the X axis value from the left end of the screen for each cursor can be measured In addit...

Page 57: ... occurs is P P compressed for each display segment raster and made into trend display data In some cases P P compression is not performed Horizontal Time Axis For procedures see section 7 4 The time per division can be set in the range of 3 s to 1 day Setting the Scale For procedures see section 7 5 Auto scaling is provided in which the upper and lower limits of the screen are determined automatic...

Page 58: ...he amplitude of each harmonic Bar graph of voltage U1 Bar graph of current I1 Vector Display of Harmonics See the Expansion Function User s Manual IM760301 51E During harmonic measurement on models with the advanced computation G6 or harmonic measurement G5 option vectors can be displayed to show the relationship between the phase difference and amplitude rms value of the fundamental signals U 1 a...

Page 59: ...data of the voltage and current input signals can be multiplied together to display the waveform of instantaneous power Waveform of active power P1 U1 I1 Waveform of voltage U1 Waveform of current I1 FFT See the Expansion Function User s Manual IM760301 51E The power spectrum of the input signal can be displayed through FFT fast Fourier transform on models with the advanced computation G6 option T...

Page 60: ...uctuation and flicker measurements conforming to IEC61000 3 3 can be performed on models with the voltage fluctuation and flicker measurement FL option Cycle by Cycle Measurement See the Expansion Function User s Manual IM760301 51E The voltage current power and other parameters for each cycle of the AC input signal can be measured on models with the cycle by cycle measurement CC option ...

Page 61: ...setup parameters can be loaded as necessary The screen image data can be pasted to documents on a word processing application PC PC card USB memory WT3000 WT3000 PC Save Load Save 1 Applies only to advanced computation G6 option 2 Numeric display data cannot be saved to binary format 3 Data acquisition via the Ethernet GP IB RS 232 USB interface 4 Data retrieval via the storage medium 5 The softwa...

Page 62: ...on as the PC card The saved setup parameters can also be loaded as necessary PC or workstation on which the FTP server function is running WT3000 PC File Accessing the WT3000 from a PC or Workstation FTP Server Function You can access the WT3000 from an FTP client on the network and retrieve the files on the PC card of the WT3000 or USB storage optional The FTP server function can be used when a P...

Page 63: ...s For details on the initial settings see appendix 2 List of Initial Settings and Display Order of Numeric Data Selecting the Message Language For procedures see section 3 17 The language of the error messages displayed on the screen during operation can be set to English or Japanese Selecting the Menu Language For procedures see section 3 17 The language of the software menus displayed on the scr...

Page 64: ...itor can be adjusted Setting the Display Colors For procedures see section 10 6 The colors for graphical elements such as the waveform background scale and cursor and text elements such as the menu and the menu background can be selected Set the color using a ratio of red R green G and blue B Setting the Key Lock or Shift Lock For procedures see section 10 7 Key lock can be used to prevent inadver...

Page 65: ... number indicated on page iii and purchase a replacement General Handling Precautions Do Not Place Objects on Top of the Instrument Never stack the instruments or place other instruments or any objects containing water on top of the instrument This may damage the recorder Keep Electrically Charged Objects Away from the Instrument Keep electrically charged objects away from the input terminals They...

Page 66: ...20 to 80 RH when the printer is not used 35 to 80 RH when using the printer No condensation in either case Do not install the instrument in the following places Outdoors In direct sunlight or near heat sources Where the instrument is exposed to water or other liquids Where an excessive amount of soot steam dust or corrosive gas is present Near strong magnetic field sources Near high voltage equipm...

Page 67: ...t from sliding Two sets four pieces of rubber feet are included in the package Rack Mount To rack mount the instrument use the rack mount kit that is sold separately Part Name Model Note Rack mount kit 751535 E4 For EIA Rack mount kit 751535 J4 For JIS An outline of the attachment procedures is given below For details regarding the attachment procedures see the instructions that are included with ...

Page 68: ...let is unavailable and protective grounding cannot be furnished do not use the instrument Connecting the Power Cord 1 Check that the power switch is OFF 2 Connect the power cord plug to the power connector on the rear panel Use the power cord that comes with the package 3 Connect the plug on the other end of the power cord to the outlet that meets the conditions below The AC outlet must be of a th...

Page 69: ...utomatically When the self test completes successfully the display shows the screen that was displayed immediately before the power switch was turned OFF Before using the instrument check that the self test completes successfully When the Power on Operation Does Not Finish Normally Turn OFF the power switch and check the following points That the power cord is securely connected That the correct v...

Page 70: ...sconnected from the outlet The next time the power switch is turned ON the instrument powers up using the stored setup parameters Note A lithium battery is used to retain the setup parameters When the lithium battery voltage falls below a certain level a message is displayed on the screen see section 11 2 when the power switch is turned ON If this message appears frequently the battery must be rep...

Page 71: ...t is dangerous When connecting measurement cables from an external current sensor to the current sensor input connector remove the cables connected to the current input terminals In addition when the voltage of the circuit under measurement is being applied to the current sensor input terminal do not touch the current input terminals Since these terminals are electrically connected inside the inst...

Page 72: ...ble Input 1 s or less Voltage Input Peak value of 2500 V or RMS value of 1500 V whichever is less Current Input Direct Input 2 A input element Peak value of 9 A or RMS value of 3 A whichever is less 30 A input element Peak value of 150 A or RMS value of 50 A whichever is less External Sensor Input Peak value less than or equal to 10 times the range Continuous Maximum Allowable Input Voltage Input ...

Page 73: ... separate the measurement cables as far away from the earth ground wires and the instrument s case as possible to minimize the static capacitance to earth ground To measure the apparent power and power factor more accurately on an unbalanced three phase circuit it is recommended that a three voltage three current system using three phase three wire 3P3W 3V3A be used to make the measurement If you ...

Page 74: ... Adapter 1 Remove approximately 10 mm of the covering from the end of the cable and pass it through the internal insulator Cable Internal insulator Attachable cable Covering Max diameter 3 9 mm Core wire Max diameter 1 8 mm 2 Insert the tip of the cable into the plug Fasten the cable in place using the hexagonal wrench Insert the hexagonal wrench into the plug and tighten Plug Hexagonal wrench 3 I...

Page 75: ...00 758921 758922 758917 758923 758931 758929 VOLTAGE CURRENT EXT When using the clamp on probe that is sold separately use it as follows Wiring to the Current Measurement Terminal 96001 voltage output type The current input terminal and EXT input terminal cannot be wired used simultaneously 751552 current output type 758917 758921 758924 Current measurement target EXT input terminal of the WT3000 ...

Page 76: ...e earth potential of the power source SOURCE SOURCE LOAD U I I U LOAD U U I I SOURCE Easily affected Not easily affected Effects due to the Amplitude of the Measured Voltage and Current SOURCE LOAD U I I U LOAD SOURCE U I I U When the measurement current is relatively large Connect the voltage measurement terminal to the load side When the measurement current is relatively small Connect the curren...

Page 77: ...nsor voltage output type Clamp type current sensor current output type CT current transformer Voltage 1000 V or less maximum allowable voltage that can be measured 600 V or less rating voltage of EN61010 2 030 Do not touch the inside of the external current sensor input BNC connector The voltage is less than or equal to 600 V Notes when Replacing Other Power Meters with the WT3000 In three phase t...

Page 78: ...cted to the current input terminals In addition when the voltage of the circuit under measurement is being applied to the current sensor input terminal do not touch the current input terminals Since these terminals are electrically connected inside the instrument this act is dangerous The terminal is a binding post and the screws are M6 Either wind the wire around the screw or pass the crimp on lu...

Page 79: ...t flows Use appropriate wires that are suitable for the current Wiring Example of a Single Phase Two Wire System 1P2W If four input elements are available four single phase two wire systems can be set up See section 3 7 for details on which wiring system below should to be selected SOURCE LOAD U1 I1 I U LOAD U1 U I1 I SOURCE SOURCE LOAD Input terminal SOURCE LOAD Input terminal I U I U Wiring Exam...

Page 80: ... and 3 or elements 2 3 and 4 SOURCE LOAD I I R S T U U U I SOURCE Input terminal 1 LOAD Input terminal 2 R S T I1 I2 I3 U3 U1 U2 Input terminal 3 I U I U I U Wiring Example of a Three Phase Four Wire System 3P4W If four input elements are available one three phase four wire system can be set up elements 1 2 and 3 or elements 2 3 and 4 SOURCE LOAD I I R S T U U U I N SOURCE Input terminal 1 LOAD In...

Page 81: ...rminal is a φ4 mm safety banana jack female Insert the safety terminal the conductive parts are not exposed into the voltage input terminal When using the 758931 Safety Terminal Adapter that comes with the package see section 3 6 External Current Sensor Input Terminal Connect an external sensor cable with the BNC connector B9284LK sold separately to the external current sensor input connector Remo...

Page 82: ...ielded wire of the external sensor cable to the L side of the shunt output terminal OUT Minimize the area created between the wires connecting the current sensor to the external sensor cable The effects due to the line of magnetic force caused by the measurement current and noise that enter this area of space can be reduced Shunt type current sensor I OUT H OUT L Shielded wire External sensor cabl...

Page 83: ...t type current sensor I OUT L OUT H External current sensor input connector EXT Input terminal U External current sensor input connector EXT Input terminal U Clamp type current sensor that outputs voltage Wiring Example of a Single Phase Two Wire System 1P2W Using a Shunt Type Current Sensor SOURCE LOAD Earth side Shunt type current sensor I OUT L OUT H External current sensor input connector EXT ...

Page 84: ... 1 U External current sensor input connector EXT Input terminal 2 U External current sensor input connector EXT Input terminal 3 U Wiring Example of a Three Phase Four Wire System 3P4W Using a Shunt Type Current Sensor SOURCE LOAD I OUT L OUT H I OUT L OUT H R S T N I OUT L OUT H External current sensor input connector EXT Input terminal 1 U External current sensor input connector EXT Input termin...

Page 85: ...r measurement is being applied to the current input terminals do not touch the current sensor input terminals Since these terminals are electrically connected inside the instrument this act is dangerous When connecting measurement cables from an external current sensor to the current sensor input connector remove the cables connected to the current input terminals In addition when the voltage of t...

Page 86: ...er the necessity of grounding and the grounding location ground near the VT or CT or ground near the power meter vary depending on the object being measured To measure the apparent power and power factor more accurately on an unbalanced three phase circuit it is recommended that a three phase three wire system three voltage three current system 3P3W 3V3A be used to make the measurement The followi...

Page 87: ...T V v l L CT VT V v l SOURCE L CT VT V v l LOAD R S T Input terminal 1 I U Input terminal 2 I U Input terminal 3 I U Wiring Example of a Three Phase Four Wire System 3P4W Using VT and CT L CT VT V v l L CT VT V v l SOURCE L CT VT V v l LOAD R S T N Input terminal 1 I U Input terminal 2 I U Input terminal 3 I U Note For the relationship between the wiring systems and the method of determining the m...

Page 88: ... Turning ON OFF the Date Time Display 3 Press the cursor keys to select Display 4 Press SET to select ON or OFF Setting the Date or Time Manually If the Ethernet interface option is installed proceed to step 5 If it is not proceed to step 7 5 Press the cursor keys to select Type 6 Press SET to set Type to Manual 7 Press the cursor keys to select the Date year month and day or Time hour minute seco...

Page 89: ...can select whether or not to display the date and time in the lower right corner of the screen OFF Do not display the date and time ON Display the date and time Setting the Date Time Setting the Date You can set the date in the form YY MM DD year month day Set the lower two digits of the year Setting the Time You can set the time in the form HH MM SS hour minute second The hour is set using a 24 h...

Page 90: ... below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys Note Check that it is okay to initialize the settings before actually initializing the settings You cannot set the settings back after initialization It is recommended that the setup paramet...

Page 91: ...anguage settings Setting of the time difference from GMT when the Ethernet option is installed Designation of file to be displayed Filter File utility operation Function Settings related to the GP IB communication serial communication option USB communication option and Ethernet communication option Initializing at Power Up If the power switch is turned ON while holding down RESET the WT3000 power...

Page 92: ...s and the up and down cursor keys to set the value of that digit Note Some of the parameters that can be changed using the cursor keys are reset to their initial values when the RESET key is pressed Entering Character Strings The equation for the user defined function units file names and comments can be entered using the keyboard that is displayed on the screen The cursor keys and SET are used to...

Page 93: ... the Temporarily Stored Equation The procedure varies depending on the WT3000 firmware version as follows Version 1 0x 1 Select on the keyboard and press SET A window opens and the temporarily stored equation is displayed 2 Select the equation you wish to recall and press SET The selected equation appears in the entry box on the keyboard If there are characters already in the entry box they are ov...

Page 94: ... After entering all the characters select ENT on the keyboard and press SET The string is confirmed and the keyboard disappears you can also press the ENT key to achieve the same result At the same time the confirmed string is temporarily stored in the internal memory Up to 8 sets of strings can be stored After eight strings have been stored a new string overwrites the oldest string Recalling the ...

Page 95: ...Be Used Date Time Specified number 0 to 9 Equation 1 to 50 characters Characters that are displayed on the keyboard and spaces Unit 1 to 8 characters Characters that are displayed on the keyboard and spaces File name 1 to 8 characters 0 9 A Z _ parentheses minus sign Comment 0 to 25 characters Characters that are displayed on the keyboard and spaces Server name 0 to 40 characters Characters that a...

Page 96: ...eyboard Select either keyboard in section 3 19 Note For USB keyboards that have been tested for compatibility contact your nearest YOKOGAWA dealer Do not connect USB devices other than a USB keyboard or a USB memory to the USB PERIPHERAL connector The WT3000 has two USB PERIPHERAL ports However USB devices whose maximum consumption current exceeds 100 mA cannot be connected simultaneously to the t...

Page 97: ...keyboard that is connected to the WT3000 carry out the procedure below 1 Press MISC 2 Press the USB soft key 3 Press the Device List soft key to display the USB Device List Check the USB keyboard that is connected Entering File Names Comments Etc When a keyboard is displayed on the screen you can enter the file name comment and other items using a USB keyboard The character that is entered through...

Page 98: ...computation G6 voltage fluctuation and flicker measurement FL or cycle by cycle measurement CC option Switching between Normal Measurement Wide Bandwidth Harmonic Measurement IEC Harmonic Measurement Waveform Computation FFT Voltage Fluctuation and Flicker Measurement and Cycle by Cycle Measurement Modes Enabling Normal Measurement or Wide Bandwidth Harmonic Measurement Mode Numeric Display 1 Pres...

Page 99: ...Mode or Wide Bandwidth Harmonic Measurement Mode Carry out the procedure given in Enabling Normal Measurement or Wide Bandwidth Harmonic Measurement Mode on the previous page Switching between Normal Measurement Mode and Wide Bandwidth Harmonic Measurement Mode 1 Press HRM SET to display the Harmonics menu 2 Press the Freq Band soft key to select Normal or Wide Explanation Measurement Mode Indicat...

Page 100: ...andwidth Harmonic Mode HRM SET key NUMERIC WAVE OTHERS soft key Bar Trend Vector Split display Numeric Wave Numeric Bar Numeric Trend Wave Bar Wave Ternd Bar Trend Measurement mode Keys FFT Mode Numeric FFT Wave FFT OTHERS soft key Split display FFT Waveform computation Mode Math Numeric Math OTHERS soft key Split display OTHERS soft key IEC Harmonic Measurement Mode IEC Harmonics Voltage fluctuat...

Page 101: ...For the operating procedure see chapter 5 For a functional description see 2 4 For the operating procedure see chapter 6 For a functional description see 2 7 1 The G5 harmonic measurement option is equivalent to the harmonic measurement in normal measurement mode For the operating procedure see chapter 7 For a functional description see 2 8 Bar graph display is not possible Vector display is not p...

Page 102: ...No No No No Yes No No No No No No No No No Yes No No Waveform computation display Math Yes No Yes No Yes 1 Yes 1 No 2 No No No No Yes Yes Yes No No No No Voltage Fluctuation and Flicker No Yes No No No No No No No Cycle by Cycle No No Yes No No No No No No Yes Selectable No Not selectable 1 The rms values of the voltage or current are the total of the specified harmonic components not the values t...

Page 103: ...Torque 1 2 Press PAGE to display the list of motor settings A relation table of the rotating speed and the input range filter scaling factor unit and synchronization source of torque number of poles frequency measurement source and other parameters is displayed 1 Displayed only on models with the motor evaluation function motor version Displaying the Relation Table of Trend Targets and Measurement...

Page 104: ...eed of Motor Evaluation Function Motor Version and Input Ranges of Torque Page 2 Displayed only on models with the motor evaluation function motor version Relation Table of Trend Targets and Measurement Functions Page 3 Relation Table of D A Output Channels and Measurement Functions Page 4 Displayed only on models with the D A output option 3 17 Displaying the Setup Parameter List ...

Page 105: ... the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to display the Misc menu 2 Press the Config soft key to display the Config menu Sel...

Page 106: ...nd help messages see section 10 8 from the choices below The error codes for the error messages are the same for both English and Japanese For details on the error messages see section 11 2 JPN Japanese ENG English Selecting the Menu Language The language used on the menu can be selected from the following JPN Japanese ENG English 3 18 Selecting the Message Language ...

Page 107: ...This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to display the Misc menu 2 Press the USB soft key to display the USB menu 3 Press the Keyboard soft key to select ENG or JPN Explanation Set the language when entering file names comments and other items from the USB keyboard see...

Page 108: ...operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press WIRING to display the Wiring menu Selecting the Wiring System Pattern 2 Press the Wiring Setting soft key to display ...

Page 109: ...nts Wiring system Pattern 1 1 1P2W Installed input elements Wiring system Pattern 1 Wiring system Pattern 2 1 1P2W 2 1P2W 1P3W or 3P3W ΣA Installed input elements Wiring system Pattern 1 Wiring system Pattern 2 Wiring system Pattern 3 Wiring system Pattern 4 1 1P2W 2 1P2W 3 1P2W 1P2W 1P2W 1P2W 1P2W 1P3W or 3P3W 3V3A ΣA 1P3W or 3P3W ΣA 1P3W or 3P3W ΣA P3W or 3P3W ΣB 1P3W or 3P3W ΣA 1P3W or 3P3W 3V3...

Page 110: ...lected when the measurement range or synchronization source setting of each input element is different these settings are changed as follows The measurement range is set to the maximum range on all input elements included in the wiring unit The external sensor input range has precedence over the direct input range for the current range The voltage current mode and auto range settings are changed t...

Page 111: ...ERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor key To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures se...

Page 112: ...Voltage Current mode Synchronization source setting Settings That Can Be Set Independently Even When the Independent Setting of Input Elements Is Turned OFF Scaling value VT ratio CT ratio and power coefficient Input filter line filter and frequency filter These settings can be set independently for each input element regardless of whether the independent setting of input elements is turned ON OFF...

Page 113: ...L Setting the Voltage Range 2 Press the voltage range selection key UP and DOWN keys to set the voltage range The specified range is displayed with the voltage range indicator to the left of the select keys and on the upper right corner of the screen where the element is displayed Press the voltage range UP key to increase the voltage range Press the voltage range DOWN key to decrease the voltage ...

Page 114: ...wiring unit according to the wiring system Setting the Voltage and Current Ranges There are two types of ranges fixed and auto Fixed Range The range is set in reference to the RMS value of the input signal Voltage Range When the crest factor is set to 3 Select 15 V 30 V 60 V 100 V 150 V 300 V 600 V or 1000 V When the crest factor is set to 6 Select 7 5 V 15 V 30 V 50 V 75 V 150 V 300 V or 500 V Cu...

Page 115: ...unction Urms 1 or Irms 1 exceeds 110 of the current measurement range If the peak value of the input signal exceeds 330 or 660 of the current measurement range when the crest factor is set to 3 or 6 respectively the range is increased If all the installed input elements are selected all the element indicators are illuminated the measurement range is increased on all input elements when the range i...

Page 116: ...ments are set to the same range 3P3W 3V3A three voltage three current 3P4W three phase four wire voltage range current range 3 when the voltage and current ranges on the corresponding elements are set to the same range When the result of the equation voltage range current range exceeds 1000 W VA or var the displayed unit changes to kW kVA or kvar The display resolution is 600000 Note Because the v...

Page 117: ...00 W 6 00000 W 12 00000 W 24 0000 W 60 0000 W 120 0000 W 240 000 W 600 000 W 1200 000 W 2 40000 kW 3 60000 kW 1000 000 mW 2 00000 W 4 00000 W 10 00000 W 20 0000 W 40 0000 W 100 0000 W 200 000 W 400 000 W 1000 000 W 2 00000 kW 4 00000 kW 6 00000 kW 1 50000 W 3 00000 W 6 00000 W 15 0000 W 30 0000 W 60 0000 W 150 000 W 300 000 W 600 000 W 1 50000 kW 3 00000 kW 6 00000 kW 9 00000 kW 3 00000 W 6 00000 ...

Page 118: ...0 W 50 0000 W 100 0000 W 250 000 W 500 000 W 1000 000 W 1 50000 kW 375 000 mW 750 000 mW 1 50000 W 3 75000 W 7 50000 W 15 0000 W 37 5000 W 75 0000 W 150 000 W 375 000 W 750 000 W 1 50000 kW 2 25000 kW 750 000 mW 1 50000 W 3 00000 W 7 50000 W 15 0000 W 30 0000 W 75 0000 W 150 000 W 300 000 W 750 000 W 1 50000 kW 3 00000 kW 4 50000 kW Active Power Range of the Wiring Unit with 1P3W 3P3W or 3P3W 3V3A...

Page 119: ... procedures see section 3 14 Selecting the Target Element 1 Press ELEMENT to select the target element The corresponding element indicator above of the key illuminates To select all elements press SHIFT ELEMENT ALL Selecting the External Current Sensor Input Connector 2 Press EXT SENSOR to turn ON the EXT SENSOR key If it is already illuminated proceed to step 3 Setting the External Current Sensor...

Page 120: ...splay the Sensor Ratio menu Only the installed elements are displayed Selecting the Target Element 2 Press one of the soft keys corresponding to the displayed element to select the target element Setting the External Current Sensor Transformation Ratio 3 Press the cursor keys to set the transformation ratio 4 4 Setting the Measurement Range When Using the External Current Sensor ...

Page 121: ...r Transformation Ratio The transformation ratio can be set in the range of 0 0001 to 99999 9999 Configuration Example of the External Current Sensor Range and Transformation Ratio When measuring a current with a maximum value of 100 A using a current sensor that outputs 10 mV when 1 A of current is flowing the maximum voltage that the current sensor outputs is 10 mV A 100 A 1 V Therefore set 1 V f...

Page 122: ...above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SCALING to display the Scaling menu Turning ON OFF the Scaling Function 2 Press the Scaling soft key to select ON or OFF The SCALING ...

Page 123: ...CT ratio 6 Repeat steps 4 and 5 to set the CT ratio for all elements Setting the Power Coefficient 3 Press the Scaling Item soft key to select SF Scaling Factor Selecting the Target Element 4 Press one of the soft keys corresponding to the displayed element to select the target element 5 Press the cursor keys to set the power coefficient 6 Repeat steps 4 and 5 to set the SF ratio for all elements ...

Page 124: ...ns above are multiplied by the VT ratio CT ratio and power factor OFF The measurement functions above are not multiplied by the VT ratio CT ratio and power factor The output values of the VT and CT are displayed directly as numeric data Setting the VT Ratio VT The VT ratio can be set in the range of 0 0001 to 99999 9999 Setting the CT Ratio CT The CT ratio can be set in the range of 0 0001 to 9999...

Page 125: ...tems and entering values and character strings For details on the procedures see section Cursor keys 1 Press MISC to display the Misc menu 2 Press the Config soft key to display the Config menu Selecting the Crest Factor 3 Press Crest Factor to select CF3 or CF6 Explanation For details see section 2 3 Selecting the Crest Factor The crest factor is a ratio of the amplitude with respect to the rms v...

Page 126: ... REMOTE CAL MOTOR SET CURSOR NULL LOWER ITEM LOWER FORM ALL USER SET DISPLAY ITEM ELEMENT RESET SET PAGE PAGE SCALING HRM SET MEASURE SYNCSOURCE AVG LINEFILTER FREQ FILTER NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT Cursor keys 1 Press SYNC SOURCE to display the Sync Src menu Selecting the Target Element 2 Press ELEMENT to select the target ...

Page 127: ...ou can select which input signal will be the synchronization source the zero crossing point of the input signal to which the measurement period is synchronized for each element or all elements collectively Select the signal to be the synchronization source from the choices below The selectable items vary depending on the installed elements U1 I1 U2 I2 U3 I3 U4 I4 Ext Clk external clock and None No...

Page 128: ...g Data update interval Measurement period When the data update rate is 250 ms 500 ms 1 s or 2 s You do not have to set the measurement period The measurement period is equal to the data update interval Note The measurement period for the numeric data of the maximum value Peak for voltage and current is the entire span within the data update period regardless of the settings above Therefore the mea...

Page 129: ...e procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys Selecting the Line Filter 1 Press LINE FILTER to display the LINE FILTER menu Only the installed elements are displayed Selecting the Target Element 2 Press one of the soft keys corresponding to the displayed element to select the target element Selecting the Line F...

Page 130: ...e setting in other measurement modes The initial setting is 50 kHz Selecting the Frequency Filter Because the frequency filter is inserted into the frequency measurement input circuit it affects frequency measurements In addition if the display update interval of the WT3000 is set to 50 ms 100 ms 5 s 10 s or 20 s it affects the detection of the measurement period for voltage current and power meas...

Page 131: ...xplanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press AVG to display the Avg menu Turning ON OFF the Averaging Function 2 Press the Averaging soft key to select ON or OFF Selecting the Averaging Type 3 Press the Avg Type soft ...

Page 132: ... measurement functions that are directly averaged are indicated below Other functions that use these functions in their computation are also affected by the averaging For details regarding the determination of each measurement function see appendix 1 U I P S and Q F1 to 4 models with the delta computation function Torque speed and Pm models with the delta computation function λ φ Cfu CfI Pc q q q ...

Page 133: ... k S k and Q k λ k and φ k are computed from the averaged P k and Q k Z Rs Xs Rp Xp Uhdf Ihdf Phdf Uthd Ithd Pthd Uthf Ithf Utif Itif hvf and hcf k harmonic order Note When averaging is turned ON the average value of multiple measurements is determined and displayed Therefore if the input signal changes steeply the response for the measured value to follow up on the change is slow The larger the v...

Page 134: ... PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press UPDATE RATE to display the Update Rate menu 2 Press the Update Rate Up...

Page 135: ...mined automatically by the fundamental frequency of the PLL source and the number of periods of the PLL source used for the analysis Voltage Fluctuation and Flicker Measurement Mode The data update rate is fixed to 2 s Cycle by Cycle Measurement Mode The data update rate setting is invalid The data update rate is automatically determined by the fundamental frequency and the number of measurement c...

Page 136: ...ction 3 14 Holding the Numeric Data Display 1 Press HOLD The HOLD key illuminates and the numeric data display is held Performing a Single Measurement 2 Press SINGLE The measurement is performed once and the instrument enters the hold condition Releasing the Hold Operation 3 Press HOLD while the values are held The HOLD key turns OFF and the numeric data display is updated Explanation Hold This fu...

Page 137: ...ers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Function select key Displaying Numeric Data on the Entire Screen 1 Press NUMERIC to display numeric data Displaying Numeric Data by Dividing the Display into Halves Split Display 1 Press OTHERS to display the Others menu 2 Press any of the soft keys from Numeric wave N...

Page 138: ...s from 4 Items 8 Items 16 Items All Items Single List and Dual List to select the number of displayed items Only on models with the advanced computation G6 or harmonic measurement G5 option There are three methods to select the item to change measurement function and element wiring unit Select using the function select keys Select using the user defined function select key USER key Select from the...

Page 139: ... Element Wiring Unit Collectively 8 Press SHIFT ELEMENT ALL ALL LED illuminates and the element wiring unit of all the displayed items on the displayed page can be changed collectively This completes the procedure for changing the displayed items using the function select keys Changing Using the Function Select Key USER Key By assigning measurement functions to the USER key up to four measurement ...

Page 140: ...e element wiring unit selection box 11 Press the cursor keys to select any of the elements wiring units starting with Element1 12 Press SET The symbol for the selected element number or wiring unit and the numeric data are displayed at the highlighted position This completes the procedure for changing the displayed items using the menu For details on changing the harmonic order of the measurement ...

Page 141: ...th the motor evaluation function motor version The color changes from green to red when the analog revolution torque signal level exceeds approx 150 of the specified measurement range For pulse revolution signal the color changes from green to red when approx 5 V is exceeded The first and second lines correspond to the conditions of rotating speed and torque respectively Data update count The data...

Page 142: ...e True Rms Value of the Voltage of Element 1 Urms1 Element 1 True rms value Voltage Simple Average of the Current of the Elements Combined by Wiring Unit ΣA IdcΣA Σ function of wiring unit ΣA Simple average Current Selecting the Display Mode Select the display format of the numeric data from below no data is displayed in places where the measurement function is not selected or where no numeric dat...

Page 143: ...ent G5 option For the procedure of changing the displayed items on the Single List or Dual List see chapter 7 in the Expansion Function User s Manual IM760301 51E Note no data is displayed in places where the measurement function is not selected or where no numeric data is present If Urms Umn Udc Urmn Irms Imn Idc or Irmn exceeds 140 of the measurement range overrange OL is displayed P shows overr...

Page 144: ...o data is displayed in this case For example if elements are assigned to ΣA and no elements are assigned to ΣB then the measurement function for ΣB shows no data Change the measurement function of the third item Change the element of the third item Resetting the Order of Display Items You can reset the displayed order of numeric data to a preset order For details on the reset items see appendix 2 ...

Page 145: ...ect one of the modes from RMS to RMEAN 3 Repeat steps 1 and 2 to select the voltage mode of all elements Selecting the Current Mode 4 Press CURRENT RANGE MODE to select one of the modes from RMS to RMEAN 5 Repeat steps 1 to 4 to select the current mode of all elements Explanation The voltage and current modes can be selected from the following four modes RMS True rms value MEAN Rectified mean valu...

Page 146: ...ss ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press ITEM to display the Numeric menu 2 Press the Frequency Meas Item soft key to display the Frequency Meas Item dialog box Only the i...

Page 147: ...Item soft key does not appear even when ITEM is pressed The frequency measurement source selection is invalid in cycle by cycle measurement mode Note If the frequency measurement is not stable such as due to noise try using the frequency filter as explained in section 4 8 Frequency cannot be detected if the AC amplitude is small For details on the detection level for frequency measurement see sect...

Page 148: ...on below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MEASURE to display the Measure menu 2 Press the User Defined Function soft key to display the User Defined Function menu 3 Press any of the soft keys from User Defined F1 to F20 to...

Page 149: ...imitation on the User Defined Functions by Measurement Mode There are limitations on the user defined functions in measurement modes other than normal measurement mode IEC Harmonics Measurement Voltage Fluctuation and Flicker Measurement and Cycle by Cycle Measurement Modes The user defined function cannot be used Wide Bandwidth Harmonic Measurement Mode Waveform Computation Mode and FFT Mode Some...

Page 150: ... Slip SLIP SyncSp SYNC The following measurement functions can also be specified on models with delta computation option F1 DELTA1 F1rms DELTAF1RMS 2 F1mn DELTAF1MN 2 F2 DELTA2 F2rms DELTAF2RMS 2 F2mn DELTAF2MN 2 F3 DELTA3 F3rms DELTAF3RMS 2 F3mn DELTAF3MN 2 F4 DELTA4 F4rms DELTAF4RMS 2 F4mn DELTAF4MN 2 F1rmn DELTAF1RMN 2 F1dc DELTAF1DC 2 F1rmn DELTAF1RMN 2 F1dc DELTAF1DC 2 F1rmn DELTAF1RMN 2 F1dc...

Page 151: ... the specified current mode Values are substituted into URMS and UMN according to the voltage current mode as follows Voltage mode RMS MEAN DC RMEAN Yes Yes Yes Yes No Yes No Yes URMS UMN If the voltage and current modes are set to RMS and UMN is assigned for the user defined function Urms Umn Irms and P can be measured simultaneously If the voltage and current modes are set to MEAN and URMS is as...

Page 152: ...re version 4 02 or later if you set the measurement period to ASSP Average for the Synchronous Source Period regardless of the selected voltage or current modes computations for all voltage and current modes RMS MEAN DC and RMEAN can be performed simultaneously Operators The following operators can be used to create an equation Operator Example Description U E1 OR1 U E2 OR1 Basic arithmetic of the...

Page 153: ...T UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys Turning ON OFF the Maximum Hold Function of t...

Page 154: ...he parentheses for URMSMAX and UMEANMAX One symbol from E1 to E4 can be entered in the parentheses for UPPEAKMAX to PMPEAKMAX The maximum value of the data above is held while the MAX hold function is enabled Values are substituted in URMSMAX and UMEANMAX only when the voltage mode is RMS and MEAN respectively The D A output the numeric data list that the built in printer prints the communication ...

Page 155: ...wer is specified using the user defined function as follows Average active power Integrated power Elapsed time of integration For example to determine the average active power of element 1 the equation of the user defined function is set as follows WH E1 TI E1 3600 The unit of TI is seconds S For the procedure of setting equations see section 5 4 ...

Page 156: ...nd character strings For details on the procedures see section 3 14 Setting the Equation for Efficiency 1 Press WIRING to display the Wiring menu 2 Press the η η η η η Formula soft key to display the η Formula dialog box 3 Press the cursor keys to set the numerator or denominator of the efficiency equation from η1 to η4 4 Press SET A box used to select the parameters for computing the efficiency a...

Page 157: ...Device Given Input Power of element 1 P1 and Output Σ power of elements 2 and 3 PΣA Efficiency equation PΣA P1 Efficiency of a Three Phase Three Wire Input Three Phase Three Wire Output Device Given Input Σ power of elements 1 and 2 PΣA and Output Σ power of elements 3 and 4 PΣB Efficiency equation PΣB PΣA Efficiency of a Single Phase Two Wire Input Motor Given Input Power of element 1 P1 and Outp...

Page 158: ...E Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press WIRING to display the Wiring menu 2 Press the Compensation soft key to display ...

Page 159: ...d Current in section 3 7 If wiring for When the Measurement Current Is Relatively Small is used U I If wiring for When the Measurement Current Is Relatively Large is used I U When Set to U I The measured voltage is determined by subtracting the voltage applied to the current terminal from the voltage value of each element The voltage applied to the current terminal is derived by the equation the m...

Page 160: ...he delta computation option Note If the current input is an external sensor input EXT and the wiring compensation is U I wiring wiring compensation is not performed This is because the instrumental loss of the current measurement is unknown If the current input is an external sensor input EXT efficiency compensation is not performed This is because the instrumental loss of the current measurement ...

Page 161: ...E INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MEASURE to display the Measure menu Selecting the Equation fo...

Page 162: ...etting the Coefficient When the applicable standard of the equation is IEC76 1 1976 IEEE C57 12 90 1993 5 Press the cursor keys to select P1 6 Press SET A box used to set coefficient P1 appears 7 Press the cursor keys to set P1 8 Press SET or ESC to close the box 9 Press the cursor keys to select P2 10 Press SET A box used to set coefficient P2 appears 11 Press the cursor keys to set P2 12 Press S...

Page 163: ... three phase four wire system SΣ PΣ2 QΣ2 Reactive power for three phase four wire system QΣ Q1 Q2 Q3 Note There are limitations to setting equations for apparent power and reactive power depending on the measurement mode For details see page 2 19 For example if you set the equation to TYPE1 in normal measurement mode and switch to IEC harmonic measurement mode the equation automatically switches t...

Page 164: ... USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MEASURE to display the Me...

Page 165: ...n 0 and 360 in the clockwise direction Note If the measured value of the voltage or current input is zero Error is displayed When both the voltage and current are sinusoids and the ratio of the voltage and current inputs do not differ greatly with respect to the measurement range the phase difference φ of lead and lag are detected and displayed correctly If the computation result of power factor λ...

Page 166: ...e elapses the integration value is reset and restarted Key operation Key operation Key operation Date time Date time Key operation Stopped by a timer Key operation Date time Date time Repeated by a timer Repeated by a timer Reference Section 5 12 Section 5 13 Section 5 13 Section 5 14 Section 5 14 Start Stop Repetitive Operation Integration Mode For details on each integration mode see section 2 6...

Page 167: ...nceled or done Integ Ready Displays Ready when ready in real time integration mode Note In addition to Reset Start Stop and Ready as displays for indicating the integration status the displays shown in the following table are available TimeUp When integration continues up to the time specified by the integration timer it automatically stops The integration status in this condition is considered Ti...

Page 168: ...cation output values do not change from the held values When the hold function is released OFF or a single measurement by pressing SINGLE is made the integration result at the point when integration is stopped is displayed or output via communications Integration time Dotted line is the integration value SINGLE Single measurement OFF ON HOLD ON ON ON Display value START STOP RESET Sample Rate and ...

Page 169: ...3 the value is considered to be the value corresponding to 300 for the purpose of integration If the instantaneous voltage or current of the sampled data exceeds 600 of the measurement range when the crest factor is set to 6 the value is considered to be the value corresponding to 600 for the purpose of integration Integration When Current Input Is Small Integration is performed assuming a current...

Page 170: ...gration start Integration stop Integration reset Store excludes integration synchronization mode Printer Zero level crossing Null START indicator STOP indicator Yes Settings can be modified No Settings cannot be modified Starting integration in auto range mode switches the measurement range to fixed range mode Integration Suspended OFF ON No No No No No No Yes Yes No Yes No Displayable No Displaya...

Page 171: ... ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press INTEG to d...

Page 172: ...started Holding the Integration 13 Press HOLD The HOLD key illuminates and the numeric data display is held Integration continues inside the WT3000 Releasing the Hold Operation 14 Press HOLD while the values are held The HOLD key turns OFF and the numeric data display is updated In the hold condition the display can be updated by carrying out single measurements by pressing SINGLE Stopping the Int...

Page 173: ...egration Mode and Setting the Integration Timer If the integration mode is set to normal integration and the integration timer is set to 00000 00 00 the integration is performed in manual integration mode For a description of starting stopping and resetting the integration and other items see section 5 11 Note Integration cannot be started stopped or reset in measurement modes other than normal me...

Page 174: ...OCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press INTEG to display the Integ menu 2 Press the Integ ...

Page 175: ... and the numeric data display is updated In the hold condition the display can be updated by carrying out single measurements by pressing SINGLE Stopping the Integration 15 Press the STOP soft key The START indicator turns OFF and the STOP indicator illuminates The integration time and integration value are held If you press STOP before the time specified by the integration timer is reached and th...

Page 176: ...and value are held at that point Repetitive Integration Mode Continuous Integration The integration time is set in relative time When the specified time elapses the operation is automatically reset and restarted Integration is repeated until STOP is pressed When the integration value reaches the maximum or minimum integration display value the integration time and value are held Setting the Integr...

Page 177: ...LE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press INTEG to display the Integ menu 2 Press ...

Page 178: ... Press the cursor keys to select one of the reservation year month date hour minute and second boxes for specifying when the integration operation will start 13 Press SET to display the entry box 14 Press the cursor keys to set the year month date hour minute or second that you selected in step 12 15 Press SET or ESC to close the box 16 Repeat steps 12 to 15 to set the year month date hour minute ...

Page 179: ...ntegration 23 Press the STOP soft key The START indicator turns OFF and the STOP indicator illuminates The integration time and integration value are held If you press STOP before the time specified by the integration timer is reached and then press START integration continues up to the time specified by the integration timer If the reservation time for stopping the integration is reached in the r...

Page 180: ... maximum or minimum integration display value The integration time and value are held at that point Setting the Integration Timer The time in units of hour minute second can be set in the following range 00000 00 00 to 10000 00 00 Note If you set the integration timer time to 00000 00 00 in real time normal integration mode the integration starts at the specified start date time The integration is...

Page 181: ...he procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press INTEG to display the Integ menu 2 Press the Integ Set soft key to display the Integ Set menu Turning ON OFF the Integration Auto Calibration 3 Press the Auto Cal soft key to select ON or OFF Explanation Turning ON OFF Integration Auto Calibration Zero level compensatio...

Page 182: ...ers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Displaying the Waveform on the Entire Screen 1 Press WAVE to display the waveform screen If wide bandwidth harmonic measurement mode is enabled on models with the advanced computation G6 option switch to normal measurement mode For the procedure see section 3 16 Displa...

Page 183: ...indows For details on how to set the bar graph display see the Expansion Function User s Manual IM760301 51E Wave Trend The waveform and trend are displayed separately in the top and bottom windows For details on how to set the trend see chapter 7 In addition the measurement period of the numeric data and that of the waveform data may not be synchronized Measurement Mode during Waveform Display Wh...

Page 184: ...P q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Pre...

Page 185: ...FF the Input Signal Waveforms One at a Time 3 Press the cursor keys to select the input signal you wish to set 4 Press SET The button to the left of the selected input signal is highlighted and the corresponding waveform is displayed If the highlighting of the button is cleared the waveform of that input signal is no longer displayed Explanation Only the input signals corresponding to the installe...

Page 186: ...he menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Wave Form menu If the waveform display is at the lower section of the screen on th...

Page 187: ... the order 0 5 ms 1 ms 2 ms 5 ms 10 ms 20 ms and 50 ms when the data update interval is 500 ms changes the time corresponding to one screen in the order 5 ms 10 ms 20 ms 50 ms 100 ms 200 ms and 500 ms Time at the right end of the screen time span of the screen Time at the left end of the screen fixed to 0 s Number of data points displayed in the range from the left to the right end of the screen W...

Page 188: ... q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Pres...

Page 189: ... soft key A trigger source selection box appears 4 Press the cursor keys to select any of the elements wiring units starting with U1 5 Press SET to confirm the new trigger source Selecting the Trigger Slope 3 Press the Slope soft key to select or Setting the Trigger Level 3 Press the cursor keys to set the trigger level 6 4 Setting the Trigger ...

Page 190: ...s updated In this happens use normal mode Normal Enables normal mode The display is updated when the trigger occurs The display is not updated if the trigger does not occur Selecting the Trigger Source Select the target to which the trigger condition is applied trigger source from below The selectable items vary depending on the installed elements U1 I1 U2 I2 U3 I3 U4 I4 and Ext Clk external clock...

Page 191: ... source passes through the specified trigger level on a rising or falling edge a trigger occurs The level can be set in the range of 0 0 to 100 0 Half of the total vertical span of the waveform display screen is considered to be 100 With the vertical center of the screen taken to be the input zero line the upper and lower limits of the waveform display screen are 100 and 100 respectively If the cr...

Page 192: ...e rising edge after the input signal level falls approximately 2 below the trigger level The trigger function uses approximately 4 hysteresis if the crest factor is set to 6 The trigger function for waveform display does not work while integration is in progress or is suspended Therefore the start position of the waveform display the signal level at the left end of the screen may not be stable In ...

Page 193: ...press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press ITEM to display the Wave Items menu If the waveform display is at the lower section of the screen on the split display press SH...

Page 194: ... a percentage with the value equal to measurement range 3 or measurement range 6 respectively taken to be 100 Zooming in on the Current Waveform 5 Press the I V Zoom soft key 6 Press the cursor keys to set the zoom rate Moving the Current Waveform Position 5 Press the I Position soft key 6 If the crest factor is set to 3 or 6 press the cursor keys to set the position in terms of a percentage with ...

Page 195: ...n the crest factor is set to 3 or 6 respectively is considered to be 100 The span between the vertical center of the screen to the upper limit of the screen is 100 the span between the vertical center of the screen to the lower limit of the screen is 100 100 100 Move the position by 50 Move the position by 50 When the zoom factor is not 1 the value equal to the measurement range 3 100 or measureme...

Page 196: ...G LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Wave Form menu If the wavef...

Page 197: ...ed or User If you selected User proceed to step 6 6 Press the cursor keys to select the input signal you wish to set 7 Press SET A box used to set the display position number appears 8 Press the cursor keys to select a value between 0 and 3 9 Press SET to confirm the new display position When Mode is Auto When Mode is User 6 6 Waveform Display on Divided Windows ...

Page 198: ...s are displayed only in waveform computation mode Fixed The waveforms are assigned in order by element number in the order voltage U and current I to the divided windows regardless of whether or not the display is turned ON Speed is displayed in the top frame Torque is displayed in the 2nd frame from the top The following figure shows how the waveforms are displayed when all 4 elements are install...

Page 199: ...ESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Wave Form menu If the waveform display is ...

Page 200: ... area between the display points rasters is no longer continuous This function interpolates between the points to display the waveforms You can select the measurement range from the following No interpolation is performed When the area is not an interpolation area When the area is an interpolation area Linearly interpolates between two points When the area is not an interpolation area Connects the...

Page 201: ... Changing the Graticule Select the grid or cross scale to display on the screen from the choices below Grid display No grid or cross scale display Cross scale display 6 7 Selecting the Display Interpolation and Graticule ...

Page 202: ...PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Wave Form menu If the waveform display is at the lower s...

Page 203: ...me axis see section 6 3 of each channel ON Displays the scale values OFF Does not display the scale values Turning ON OFF the Label Display You can select whether to display waveform labels input signal names ON Displays the label name OFF Does not display the label name Time at the right end of the screen Time at the left end of the screen Lower limit Upper limit Waveform label 6 8 Turning ON OFF...

Page 204: ... q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SHIFT MEASURE CURS...

Page 205: ...ng with U1 5 Press SET to confirm the new target waveform Selecting the Movement Path of the Cursor 6 Press the Cursor Path soft key to display the Cursor Path menu 7 Press any of the soft keys from Max to Mid to select the movement path Moving the Cursor 8 Press the Wave C1 Wave C2 x soft key to set the cursor target to Wave C1 Wave C2 x or both Wave C1 and Wave C2 x If you select Wave C1 the pos...

Page 206: ...the screen X The difference between the X axis values of cursor and cursor x 1 X Reciprocal of the difference between the X axis values of cursor and cursor x Movement Path of the Cursor Since the WT3000 P P compresses the sampled data see section 2 7 two data points maximum and minimum values are displayed at the same time axis position Therefore you can select the path on which the cursor moves ...

Page 207: ...cated above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Displaying Trends 1 Press OTHERS to display the Others menu 2 Press any of the soft keys from Trend Numeric Trend Wave Trend and Bar Trend to selec...

Page 208: ...ay Mode Select the trend display format from the choices below Displaying the trend on the entire screen Press the Trend soft key to display the trend on the entire screen Displaying the trend by dividing the display into halves split display Numeric Trend The numeric data and trend are displayed separately in the top and bottom windows For details on how to set the numeric data display see sectio...

Page 209: ... q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Pres...

Page 210: ... trends are no longer displayed Turning ON OFF the Trend One at a Time 3 Press the cursor keys to select the trend symbol you wish to set 4 Press SET The button to the left of the selected trend symbol is highlighted and the corresponding trend is displayed If the highlighting of the button is cleared the trend is no longer displayed Explanation You can turn ON OFF the trend display from trend 1 T...

Page 211: ...WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Pr...

Page 212: ... Σ Σ soft key to display the element wiring unit selection box 9 Press the cursor keys to select any of the elements wiring units starting with Element1 10 Press SET to confirm Selecting the Harmonic Order Applicable Only on Models with the Advanced Computation Option or the Harmonic Measurement Option 11 Press Order soft key 12 Press the cursor keys to select the order from normal measured value ...

Page 213: ... measured value or from dc 0th order up to 100th order Note For the meanings of the measurement function symbols that are displayed see section 2 2 Measurement Functions and Measurement Periods 2 5 Computation 2 6 Integration and appendix 1 Symbols and Determination of Measurement Functions For details on the wiring units expressed as ΣA and ΣB see section 4 1 Selecting the Wiring System The trend...

Page 214: ...ress ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Trend Form menu If the trend display is at the lower section of the screen on the split display press SHIFT ...

Page 215: ...d display is updated every 10 s and the trend data is shown as a line graph at 10 s intervals If T div is set to 1 day the data update interval of the trend is 1728 s regardless of the data update rate setting Note If the time axis is changed the retrieval of trend waveform data restarts The trend display up to that point is cleared and the trend starts from the right end One division on the trend...

Page 216: ...E HOLD SINGLE INTEG LOCAL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press ITEM to display the Trend Ite...

Page 217: ...it during Manual Scaling 6 Press the Lower Scale soft key 7 Press the cursor keys to set the lower limit Explanation Setting the Scale Set the upper and lower limits of the display frame when displaying the trend You can select the scaling mode from below Auto Set to auto scaling The upper and lower limits on the screen display are automatically determined from the maximum and minimum values of th...

Page 218: ...AL SHIFT RESET SET PAGE PAGE Cursor keys To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Trend Form menu If the trend dis...

Page 219: ...ivision Dual 2 divisions Triad 3 divisions Quad 4 divisions The number of displayed points in the vertical direction of one divided window varies depending on the number of divisions as follows Single 432 points Dual 216 points Triad 144 points Quad 108 points Waveform Mapping The trends that are turned ON see section 7 2 are assigned in order according to the trend number T1 to T16 to the divided...

Page 220: ...sor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Trend Form menu If the trend display is at the lower section of the screen on the split display press SHIFT FORM LOWER FORM 2 Press the Display Setting soft key to display the Disp Setting menu Selecting W...

Page 221: ...Turning ON OFF the Scale Value Display in section 6 8 Turning ON OFF the Label Display Same as the explanation given in Turning ON OFF the Label Display in section 6 8 Note The settings in this section are common with the waveform display see chapter 6 Changing these settings in the trend display also changes the waveform display settings For example if you turn the scale value display OFF in the ...

Page 222: ...n the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 1 Press FORM to display the Trend Form menu If the trend display is at the lower section of the screen on the split display press SHIFT FORM LOWER FORM 2 Press the Clear Tren...

Page 223: ...UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SHIFT MEASURE CURSOR to display the Cur...

Page 224: ... 4 Press the TrendC2 Trace soft key A box used to select the target trend appears 5 Press the cursor keys to select a value between T1 and T16 6 Press SET to confirm the new target trend Moving the Cursors 7 Press the Trend C1 Trend C2 x soft key to set the cursor target to Trend C1 Trend C2 x or both Trend C1 and Trend C2 x If you select Trend C1 the position of cursor can be moved If you select ...

Page 225: ...Item Y Vertical value of cursor Y axis value Yx Vertical value of cursor x Y axis value Y The difference between the Y axis values of cursor and cursor x X X axis value of cursor from the left end of the screen Indicates the relative time of cursor from the left end of the screen with the left end of the screen taken to be 0 s Xx X axis value of cursor x from the left end of the screen Indicates t...

Page 226: ...is phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys To set or execute the storage operation set the measurement mode to normal measurement mode or wide bandwidth harmonic measurement mode There are limitations on the setting and execution of the storage operation in measurement modes other than ...

Page 227: ...ble Measurement Modes in Which the Storage Function Cannot Be Used IEC harmonic measurement mode Waveform computation mode FFT mode Voltage fluctuation and flicker measurement mode Cycle by cycle measurement mode Store Mode You can select the timing used to start or end the storage operation from the choices below Manual This is the manual mode When you press STORE the numeric data or waveform dis...

Page 228: ... procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SHIFT STORE STORE SET to display the Store Set menu 2 Press the Mode soft key to select Store 3 Press theStore Setting soft key to display the Store Setting menu Selecting the Item to Be Stored 4 Press the Store Item soft key to display the Store Item menu 5 ...

Page 229: ...ms will not be stored Selecting Only the Items That Are Preset 7 Press the cursor keys to select Preset1 or Preset2 8 Press SET The buttons to the left of all the elements and measurement functions that are specified in Preset1 or Preset2 are highlighted indicating that the items will be stored Items set to Preset1 Items set to Preset2 Setting the Items One at a Time 7 Press the cursor keys to sel...

Page 230: ... not be stored Setting the Items One at a Time 7 Press the cursor keys to select the input signal you wish to set 8 Press SET When the button to the left of the selected input signal is highlighted the input signal will be stored If the highlighting of the button is cleared the input signal will not be stored Selecting the Numeric Data and Waveform Data to Be Stored This operation is valid if the ...

Page 231: ...lso selectable items Note There are limitations on the setting and execution of the storage operation in measurement modes other than normal measurement mode For details see section 8 1 For the meanings of the measurement function symbols that are displayed see section 2 2 Measurement Functions and Measurement Periods 2 5 Computation 2 6 Integration appendix 1 Symbols and Determination of Measurem...

Page 232: ...MAGESAVE HELP NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see...

Page 233: ...ess SET or ESC to close the box 10 Press the cursor keys to select SET 11 Press SET 12 Press ESC to close the entry box Setting the Store Interval 4 Press the Interval Setting soft key to display the Interval Setting dialog box 5 Press the cursor keys to select the hour minute or second box 6 Press SET to display the entry box 7 Press the cursor keys to set the hour minute or second that you selec...

Page 234: ...t Store Start 8 Press SET to display the entry box 9 Press the cursor keys to set the year month date hour minute or second that you selected in step 7 10 Press SET or ESC to close the box 11 Repeat steps 7 to 10 to set the year month date hour minute and second 12 Press the cursor keys to select one of the reservation year month date hour minute and second boxes for specifying when the storage op...

Page 235: ...ge If the interval is set to 00 00 00 the data is stored in sync with the updating of the numeric data or waveform display data 00 00 00 to 99 59 59 By setting the time of the integration timer see section 5 11 or 5 12 to an integer multiple of the store interval the integrated values at integration start and integration stop that are repeated according to the time setting of the integration timer...

Page 236: ...display data set the display mode to Wave Numeric Wave Wave Trend or Wave Bar 2 and display the waveform on the screen For the setup procedure see section 6 1 1 Displayed only to products with the advanced computation G6 option 2 Displayed only on models with the advanced computation G6 or harmonic measurement G5 option Starting the Storage Operation 1 Press SHIFT STORE STORE SET to display the St...

Page 237: ...left corner of the screen During integration synchronization mode The storage operation stops when the specified store count of data is stored when integration stops or when the data is stored up to the internal memory size Store Stop is displayed in the upper left corner of the screen Initializing Clearing the Internal Memory The procedure to clear the internal memory varies depending on the stor...

Page 238: ...ernal Memory To start the storage operation again after stopping the operation the internal memory must be cleared Retaining the Stored Data The data stored to the internal memory cannot be retained by the internal lithium battery The data in the internal memory is lost when the power to the WT3000 is turned OFF To retain the data save the data to the storage medium before turning off the power No...

Page 239: ... I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SHIFT STORE...

Page 240: ...irectories are present on the medium 9 Press the cursor keys to select the save destination directory indicated by 10 Press SET to confirm the directory The selected storage medium directory is displayed in Path located above and to the left of the File List dialog box Select and press SET to return to a higher level directory Setting the File Name and Comment 11 Press the File Name soft key to di...

Page 241: ...Abort soft key to abort the save operation At the same time the Abort soft key changes to a Memory to File Exec soft key Specifying the File to Be Displayed in the File List Dialog Box 11 Press the Filter soft key to select Item or All Viewing the Properties 11 On the File List dialog box press the cursor keys to select the file 12 Press the Property soft key to display the file property window 13...

Page 242: ...n stops the operation Then the stored data is saved to the directory indicated by Path Automatically Stopping the Store Operation and Saving the Data 11 The storage operation stops see section 8 4 automatically according to various conditions depending on the store mode Then the stored data is saved to the directory indicated by Path Specifying the File to Be Displayed in the File List Dialog Box ...

Page 243: ...med Approx 4K 8 Dn 16 16 Ti number of storage operations Dn Number of numerical data to be stored Number of measurement functions number of elements number of wiring units Ti Number of integration time to be stored Extension and Data Size of the Waveform Display Data File Data Type Extension Data Size Bytes ASCII CSV Approx 115 K condition when there is one waveform to be stored store count 10 Flo...

Page 244: ...to Naming is turned ON files with a four digit number from 0000 to 2499 are automatically created when saving the data You can specify a common name up to 4 characters specified through File Name that is placed before the number Initializing Clearing the Internal Memory The storage operation can be executed only when the internal memory is cleared If you are performing the first storage operation ...

Page 245: ...e File List window Do not remove the archive attribute of the files saved by the WT3000 using your PC Up to 41 characters can be displayed in the path If the path exceeds 41 characters is displayed at the end of the character string File names are not case sensitive Comments are case sensitive In addition the following names cannot be used due to limitations of MS DOS AUX CON PRN NUL CLOCK COM1 to...

Page 246: ...section 3 14 Cursor keys Recalling the Data 1 Press SHIFT STORE STORE SET to display the Store Set menu 2 Press the Mode soft key to select Recall 3 Press the cursor keys and set the Recall No number of the data to be recalled The corresponding data is displayed Initializing Clearing the Internal Memory The procedure to clear the internal memory varies depending on the store mode This section desc...

Page 247: ...he screen For example the information is displayed as Recall 3 100 In this example the Recall No is 3 and the store count is 100 If there is no stored data the store count is 0 Note Only the data stored in the internal memory can be recalled Display Related to Recall Recall No store count Date time of storage Normal Data Data stored in normal measurement mode Wide Band Hrm Data Data stored in wide...

Page 248: ...g the PC Card Check that the PC card is not being accessed and press the eject button below the PC card slot Normally the eject button is retracted To eject the PC card press the eject button once to pop the button out and press it again PRECISIO N POWER ANALY ZE R POWER Front side Eject button PC card Press the eject button once to pop the button out and press it again CAUTION The WT3000 may malf...

Page 249: ...000 is ON or OFF supports hot plugging When the power switch is ON the USB memory is detected and enabled approximately six seconds after it is connected An ID number 2 or greater is automatically assigned to the detected USB memory Note Do not connect USB devices other than a USB keyboard or a USB memory to the USB PERIPHERAL connector The WT3000 has two USB PERIPHERAL ports However USB devices w...

Page 250: ...NU STORE SET MENU LOWER ITEM LOWER FORM ALL USER SET DISPLAY ITEM ELEMENT RESET SET PAGE PAGE SCALING HRM SET MEASURE SYNCSOURCE AVG LINEFILTER FREQ FILTER FILE PRINT MISC STORE IMAGESAVE HELP NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation belo...

Page 251: ...Selecting the Number of Partitions 7 Press the Format soft key to display the Format menu 8 Press the cursor keys to select 1 or 2 A storage medium that is already partitioned can be selected and formatted as a separate storage media but the separate storage media cannot be partitioned further Executing OK Aborting Cancel the Format Operation 9 Press the Format Exec soft key An Alert dialog box ap...

Page 252: ...he PC card or USB memory is formatted to FAT format Number of Partitions You can set partitions on the PC card However PC cards that are handled as removable disks cannot be partitioned You can select 1 or 2 for the number of partitions Note Note that if you format a storage medium that has data stored on it all of the stored data are cleared It takes a few seconds to format a PC card Selecting th...

Page 253: ...and character strings For details on the procedures see section 3 14 Cursor keys Procedure 1 Press FILE to display the File menu Selecting the Item to Be Saved 2 Press the File Item soft key to display the File Item menu 3 Press one of the soft keys from Setup to Numeric or Acquisition to select the item to be saved Select Acquisition to save the power spectrum waveform data in FFT mode Select Num...

Page 254: ...aved The input signal selection box appears only when you select Float in step 5 When the data type is set to Binary or ASCII the waveform that is displayed on the screen is saved 6 Press the Save soft key to display the Save Menu 7 Press the Trace soft key to display the input signal selection box 8 Press the cursor keys to select any of the elements wiring units starting with U1 9 Press SET to s...

Page 255: ... indicating that all items will be saved Deselecting All Items at Once 6 Press the cursor keys to select All OFF 7 Press SET The highlighting of the buttons to the left of all the elements and measurement functions are cleared indicating that all items will not be saved Cycle by cycle measurement Selecting Only the Items That Are Preset during Normal Measurement Only 6 Press the cursor keys to sel...

Page 256: ...Selecting the Type of Waveform Sampling Data to Be Saved 4 Press the Data Type soft key to display the Data Type menu 5 Press one of the keys from Binary to Float to select the data type Selecting the Input Signals to Be Saved The input signal selection box appears only when you select Float in step 5 When the data type is set to Binary or ASCII the waveform that is displayed on the screen is save...

Page 257: ...e destination directory indicated by 16 Press SET to confirm the directory The selected medium directory is displayed in Path located above and to the left of the File List dialog box Setting the File Name and Comment 17 Press the File Name soft key to display the Save dialog box 18 Press the cursor keys to select Auto Naming 19 Press SET to select ON or OFF 20 Press the cursor keys to select File...

Page 258: ...ress the Abort soft key to abort the save operation At the same time the Abort soft key changes to the Save Exec soft key Specifying the File to Be Displayed in the File List Dialog Box The procedure is the same as that given in Specifying the File to Be Displayed in the File List Dialog Box in section 9 6 Viewing the Properties The procedure is the same as that given in Viewing the Properties in ...

Page 259: ...ta Acquisition Yes Yes Yes Yes Yes Yes Yes 1 Yes No No Yes Yes Waveform data Wave Yes Yes Yes Yes Yes Yes Setup parameters Setup Harmonics G6 G5 FFT Voltage Fluctuation and Flicker Cycle by Cycle Waveform Computation IEC Harmonic Wide Bandwidth Harmonic Normal Measurement Saved Item Measurement Mode and Options G6 G6 No No No Yes FL No Yes No Yes CC G6 G6 None Numeric data Numeric 2 Saving Setup P...

Page 260: ...ption Selecting the Data Type Select the data type from below The extension is automatically added Binary The following two files are created in the directory Waveform display data file wvf ASCII header file hdr Waveform display data is saved in binary format For details on the ASCII header file see appendix 3 Either file cannot be loaded into the WT3000 ASCII Saved in ASCII format The file can be...

Page 261: ...ms Saving the Numeric Data Select Numeric from the File Item menu to save numerical data Selecting the Data Type Select the data type from below The extension is automatically added The data type is fixed to ASCII for the cycle by cycle measurement ASCII Saved in ASCII format The file can be used on your PC for analysis The file cannot be loaded into the WT3000 Float Saved in 32 bit floating forma...

Page 262: ... 0x7FC00000 0x7F800000 0xFF800000 or 0xFFFFFFFE When saving the cycle by cycle measurement data information indicating whether peak over range occurred during the measurement is recorded to the right of the voltage U current I speed and torque data values using a number between 0 and 7 There are two methods for detecting peak over range detection by data and detection by hardware The peak over ran...

Page 263: ...function motor version 2 Applicable only to products with the advanced computation G6 option Yes Selecting the Data Type Select the data type from below The extension is automatically added Binary The following two files are created in the directory Waveform display data file wvf ASCII header file hdr Waveform display data is saved in binary format For details on the ASCII header file see appendix...

Page 264: ...ts 10 s 2 000 000 points 20 s 4 000 000 points The number of waveform sampling data points of U1 to I4 Speed Torque Math1 Math2 in FFT mode FFT Points Number of Waveform Sampling Data Points 200 k 200 000 points 20 k 20 000 points The number of waveform sampling data points do not depend on the data update rate The number of waveform sampling data points of FF1 and FF2 in FFT mode FFT Points Numbe...

Page 265: ... the data update due to the single measurement is complete If you carry out single measurement while the display is held the waveform sampling data is overwritten If you execute the save operation while the data update by the single measurement is in progress and the waveform sampling data is being overwritten an error occurs and the file is not created If the speed or torque signal type of the mo...

Page 266: ... 51E For details on the wiring units expressed as ΣA and ΣB see section 4 1 Selecting the Wiring System The maximum order for which the harmonic data is saved is the maximum harmonic order to be measured that is specified in the harmonic measurement option menu Up to 41 characters can be displayed in the path File names are not case sensitive Comments are case sensitive In addition the following f...

Page 267: ... keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press SHIFT IMAGE SAVE MENU to display the Image Save menu Selecting the Data Format 2 Press the Format soft key to display the Format menu 3 Press any s...

Page 268: ...keyboard operations see section 3 14 Entering Values and Strings Selecting the Storage Medium and Directory 8 Press the File List soft key to display the File List dialog box 9 The procedure is the same as that given inin Selecting the Storage Medium and Selecting the Save Destination Directory in section 9 3 10 Press ESC to close the File List dialog box 9 4 Saving the Screen Image Data ...

Page 269: ...ard operations see section 3 14 Entering Values and Strings 17 Press ESC to close the File Name dialog box Executing or Aborting the Save Operation Display the desired screen and carry out the following procedure Press IMAGE SAVE The screen image data is saved to the directory indicated by Path If you press IMAGE SAVE again while the save operation is in progress the operation is aborted An icon a...

Page 270: ...same as that given in File Name and Comment in section 9 3 However only the first 20 characters of the comment appears on the screen Selecting the Storage Medium and Directory The explanation is the same as that given in Selecting the Storage Medium and Directory in section 9 3 Auto Naming Function Same as the explanation in Auto Naming Function in section 9 3 Note The number of directories and fi...

Page 271: ...LAY ITEM ELEMENT RESET SET PAGE PAGE SCALING HRM SET MEASURE SYNCSOURCE AVG LINEFILTER FREQ FILTER FILE PRINT MISC STORE IMAGESAVE HELP NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phras...

Page 272: ...y indicated by 6 Press SET to confirm the directory The selected storage medium directory is displayed in Path located above and to the left of the File List dialog box Select and press SET to return to a higher level directory Selecting the File to Be Loaded 7 Press the cursor keys to select the file Executing the Load Operation 8 Press the Load Exec soft key The selected file is read from the di...

Page 273: ...e extension of the setup parameter file such as on a PC the file can no longer be loaded into WT3000 Files that do not have an archive attribute are not displayed in the File List window Do not remove the archive attribute of the files saved by the WT3000 using your PC Up to 41 characters can be displayed in the path If the path exceeds 41 characters is displayed at the end of the character string...

Page 274: ...SAVE HELP NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see sec...

Page 275: ...l the list of all the files in the directory selected in step 5 is displayed Viewing the Properties 7 On the File List dialog box press the cursor keys to select the file 8 Press the Property soft key to display the file property window 9 Press ESC to close the file property window Selecting the File Attribute 10 Press the cursor keys to select the file 11 Press the Attribute soft key The attribut...

Page 276: ...tribute Select the file attribute of each file from the following R W Read and write R Read only Cannot write to the file or delete the file Note You cannot change a directory attribute The number of directories and files that can be displayed in the file list is 2500 If the number of directories and files in a directory exceeds 2500 the file list randomly displays 2500 of the directories and file...

Page 277: ...UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press FILE to display the File menu 2 Press t...

Page 278: ...f the file name disappears the file will not be deleted Proceed to step 12 Selecting the Files to Be Deleted at Once 9 Press the cursor keys to select a file directory or storage medium 10 Press the All Set soft key Asterisks appear to the left of the directory containing the selected file and all the files in the directory the selected directory and all the files in the directory or all the direc...

Page 279: ...lecting the files at once If you select a file and press the All Set soft key asterisk marks are placed by the directory containing the selected file and all the files in the directory If you select a directory and press the All Set soft key asterisk marks are placed by the selected directory and all the files in the directory If you select a storage medium and press the All Set soft key asterisk ...

Page 280: ... P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press FILE to displ...

Page 281: ...e file will not be copied Proceed to step 12 Selecting the Copy Source Files at Once 9 Press the cursor keys to select a file directory or storage medium 10 Press the All Set soft key Asterisks appear to the left of the directory containing the selected file and all the files in the directory the selected directory and all the files in the directory or all the directories and files in the selected...

Page 282: ...copy destination File List dialog box appear Selecting the Copy Destination Storage Medium or Directory 13 The procedure is the same as that given inin Selecting the Storage Medium and Selecting the Save Destination Directory in section 9 3 Executing the Copy Operation 14 Press the Copy Exec soft key All the copy source files with asterisk marks are copied 9 8 Copying Files ...

Page 283: ...file and press the All Set soft key asterisk marks are placed by the directory containing the selected file and all the files in the directory If you select a directory and press the All Set soft key asterisk marks are placed by the selected directory and all the files in the directory If you select a storage medium and press the All Set soft key asterisk marks are placed by all the directories an...

Page 284: ...AGE PAGE SCALING HRM SET MEASURE SYNCSOURCE AVG LINEFILTER FREQ FILTER FILE PRINT MISC STORE IMAGESAVE HELP NUMERIC WAVE OTHERS ITEM FORM U I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures f...

Page 285: ...Box in section 9 6 Viewing the Properties 7 The procedure is the same as that given inin Viewing the Properties in section 9 6 Selecting the File Attribute 8 The procedure is the same as that given inin Selecting the File Attribute in section 9 6 Renaming a Directory or File 9 Press the cursor keys to select the directory or file 10 Press the File Name soft key A keyboard appears The name of the s...

Page 286: ...at given inin Specifying the File to Be Displayed in the File List Dialog Box in section 9 6 Viewing the Properties 7 The procedure is the same as that given inin Viewing the Properties in section 9 6 Selecting the File Attribute 8 The procedure is the same as that given inin Selecting the File Attribute in section 9 6 Creating a Directory 9 Press the cursor keys to select the storage medium or a ...

Page 287: ...ame as the explanation given in File Name and Comment in section 9 3 Note You cannot change a directory attribute If a file with the same name already exists in the same directory the file cannot be renamed If a directory with the same name already exists in the same directory the directory cannot be created The number of directories and files that can be displayed in the file list is 2500 If the ...

Page 288: ...tion Zero Level Compensation This function is used to create a zero input condition using the internal circuit of the instrument and setting the level at that point to zero level Zero level compensation must be performed to meet the specifications of this instrument see chapter 12 Pressing CAL executes the zero level compensation Zero level compensation is automatically performed after changing th...

Page 289: ... terminal and shorted voltage input terminal NULL Value The NULL values are set to the Udc and Idc values numeric data of the simple average of voltage current as well as speed and torque on models with the motor evaluation function when the input signal from the sensor is analog that were measured the previous time when the voltage current mode is set to DC and the NULL function is turned ON If t...

Page 290: ...ampled data Hence all measurement functions are affected by the NULL values Limitations on the NULL Function by Measurement Modes The NULL function cannot be used in the following measurement modes Wide bandwidth harmonic measurement mode IEC harmonic measurement mode Voltage fluctuation and flicker measurement mode Cycle by cycle measurement mode 10 2 NULL Function ...

Page 291: ...cedures see section 3 14 Cursor keys 1 Press MEASURE to display the Measure menu 2 Press the Sampling Frequency soft key to display the Sampling Frequency menu 3 Press any of the soft keys from Auto Clock A to C to select the sampling frequency Explanation The frequency used to acquire the sampled data to compute the measurement functions can be selected Auto Automatically switches the following C...

Page 292: ... I P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to dis...

Page 293: ...dth Roman A font in which the vertical lines are thicker than horizontal lines with emphasis at the beginning and end of the stroke Note Both the Gothic and Roman fonts used on the WT3000 are original fonts designed by YOKOGAWA Therefore the details of each font may differ from that of other devices 10 4 Selecting the Display Font ...

Page 294: ...SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to display the Misc menu 2 Press the Config soft ke...

Page 295: ...G LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to display the Misc menu 2 Press the Next 1 2 soft key to disp...

Page 296: ... Press SET or ESC to close the box Setting the Text Color Selecting Preset or User 3 Press the Text Color soft key to display the Text Color menu 4 Press the cursor keys to select a value between Preset1 and User Setting User Colors 3 Press the User Color soft key to display the Text Color dialog box 4 Press the cursor keys to select the item you wish to set 5 Press SET A box used to set the color...

Page 297: ...or of the waveform I3 and Speed are set to the same display color The same hold true for U4 and Torque Applicable only to products with the motor evaluation function motor version Setting the Text Color Select from Preset1 to 3 and user setting For user color the display color can be specified for each item Menu Fore Set the color of the text on the menu dialog box window and other screens Menu Ba...

Page 298: ... P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to displ...

Page 299: ...even when the power is turned OFF Turning the Shift Lock ON OFF You can select whether the shifted condition is released after selecting a setup menu marked in purple below the key in the shifted condition condition in which the Shift key is pressed OFF Releases the shifted condition ON Does not release the shifted condition You can continue to select the setup menus marked in purple To release th...

Page 300: ...rsor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys Displaying the Help Window 1 Press HELP to display the help window 2 Press the key or soft key that you wish to review Clearing the Help Window 3 Press HELP again The help window disappears Explanation Displaying the Hel...

Page 301: ...phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys Selecting Master or Slave Mode 1 Press MEASURE to display the Measure menu 2 Press the Sync Measure soft key to select Master or Slave Only a single master and a single slave can be specified Performing Synchronized Measurements Connect the extern...

Page 302: ...re Applies to the master Input logic negative logic falling edge Applies to the slave Minimum pulse width Low level 500 ns or more Applies to the slave Input delay time During HOLD ON Applies to the slave 1 µs 1 sample interval During HOLD OFF Applies to the slave Within 63 ns 1 sample period Note The master and slave conditions in which synchronized measurement is not possible are as follows The ...

Page 303: ...t may malfunction Applying a voltage outside the 0 to 5 V range to the external start signal input output connector when the instrument is set to slave may cause damage to the instrument Limitations on the Synchronized Measurement by Measurement Modes Synchronized measurement cannot be used in the following measurement modes Wide bandwidth harmonic measurement mode IEC harmonic measurement mode Wa...

Page 304: ...ycle the instrument 3 4 Keys do not work Check the REMOTE indicator If the REMOTE indicator is ON press the LOCAL key to turn it OFF Check that key lock is OFF 10 7 Perform a key test If it fails servicing is required 11 3 Triggering does not work Check the trigger conditions 6 4 Check that the trigger source is being applied 6 4 Unable to make harmonic measurements Check the PLL source settings 1...

Page 305: ...ady exists 9 3 609 610 Contains invalid characters 9 3 611 Media full Delete unnecessary file s or use another disk 9 2 to 9 7 612 613 Cannot delete a directory if there are files Delete all the files in the directory to be deleted 9 7 in the directory 614 File is protected 9 6 615 Physical format error Reformat the medium If the same error occurs 9 2 the instrument is probably unable to execute a...

Page 306: ...etwork settings and connection 1 761 FTP Error GetData Confirm the network settings and connection 1 762 FTP Error PutData Confirm the network settings connection 1 and disk capacity 763 FTP Error AppendData Confirm the network settings connection 1 and disk capacity 764 FTP Error Client Handle Confirm the network settings and connection 1 765 FTP Error Others Confirm the network settings and conn...

Page 307: ...ent is in progress reset or while the judgement result is being displayed 826 Cannot be set or executed when flicker Reset the flicker measurement measurement is not reset 827 Illegal math expression Input a correct computing equation 5 4 828 Cannot start flicker measurement when all Perform judgement or move the observation period periods of dmax measurement are finished if necessary and measure ...

Page 308: ...0 Cannot be set or executed while accessing Wait until access has completed Aquisition memory 861 Acquisition data not found 862 Numeric data not found 864 This wiring cannot be set as the first 4 1 selected element 865 Cannot be set while integration is running Stop or reset Integration 866 Cannot be set or executed while Auto Print Turn off Auto Print from the PRINT MENU is operating SHIFT PRINT...

Page 309: ...s required 912 Fatal error in Communication driver Maintenance service is required 914 Time out occurs in Communications 915 EEPROM SUM error EEPROM may be damaged Maintenance service is required 919 Module installation condition and setup The system has been initialized parameters do not match Maintenance service is required 921 System Failed to Draw Display Maintenance service is required 922 Fa...

Page 310: ...ers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to display the Misc menu 2 Press the Selftest soft key to display the Selftest menu 3 Press the Test Item soft key to display the Test Item menu 4 Press the Memory or Key Board soft key to select the test item If you select Memory proceed to Te...

Page 311: ...see section 3 14 Entering Values and Strings Explanation Memory Test Tests whether the internal ROM and RAM are operating correctly If Pass is displayed it is operating correctly If Failed is displayed contact your nearest YOKOGAWA dealer System Tests the RAM in the CPU ACQ RAM Tests the RAM that stores the waveform sampling data acquisition data Testing the Keys and Keyboard Tests whether the fro...

Page 312: ... P WP q TIME USER ELEMENT UPDATE RATE HOLD SINGLE INTEG LOCAL SHIFT To exit the menu during operation press ESC located above the soft keys In the procedural explanation below the phrase press the cursor keys may be used This phrase refers to the procedures for selecting items and entering values and character strings For details on the procedures see section 3 14 Cursor keys 1 Press MISC to displ...

Page 313: ...rent 6 3 A Type Time lag Standard UL VDE certified Part number A1463EF Replacement Procedure Replace the power fuse according to the procedure below 1 Turn OFF the power switch 2 Remove the power cord from the power connector 3 Insert the tip of a flat blade screw driver in the dented section of the fuse holder on the power connector side turn it in the direction of the arrow and pull out the fuse...

Page 314: ...cover any other items or expendable items items which wear out The replacement period for expendable items varies depending on the conditions of use Refer to the table below as a general guideline Contact your nearest YOKOGAWA dealer to have parts replaced Parts Name Recommended Replacement Period Built in printer Under normal usage 200 rolls of printer paper part No B9316FX LCD backlight 3 years ...

Page 315: ... V When the crest factor is set to 6 25 mV 50 mV 100 mV 250 mV 500 mV 1 V 2 5 V and 5 V Input impedance Voltage Input resistance Approx 10 MΩ input capacitance Approx 5 pF Current 2 A input element Direct input Approx 500 mΩ approx 0 07 µ H External sensor input Input resistance Approx 1 MΩ input capacitance Approx 40 pF Current 30 A input element Direct input Approx 5 5 mΩ approx 0 03 µ H Externa...

Page 316: ...tions of harmonic measurement see chapter 7 in the Expansion Function User s Manual IM760301 51E Range switching Can be set for each element Auto range function Range Increase When U or I exceeds 110 of the rated range When the peak value of the input signal exceeds approximately 330 of the rated range approximately 660 when the crest factor is set to 6 Range decrease When U or I is less than or e...

Page 317: ...om the fU and fI of all installed elements can be measured simultaneously On the model with the frequency measurement add on option the fU and fI of all elements can be measured simultaneously The display of signals that are not selected shows no data Voltage max and min V U pk Voltage maximum U pk Voltage minimum Current max and min A I pk Current maximum I pk Current minimum Crest factor CfU Vol...

Page 318: ...ected Power W PcΣ Applicable standard IEC76 1 1976 IEEE C57 12 90 1993 IEC76 1 1993 Integration Time Integration time WPΣ Sum of positive and negative watt hours WP Σ Sum of positive P consumed watt hour WP Σ Sum of negative P watt hour returned to the power supply qΣ Sum of positive and negative ampere hours q Σ Sum of positive I ampere hour q Σ Sum of negative I ampere hour WSΣ Integration of SΣ...

Page 319: ...e read error equation is kHz Add 3 of range reference value to the above accuracy figure for the accuracy of the waveform display data Upk and Ipk However for external sensor input add 3 of range 5 mV reference value The effective input range is within 300 of the range within 600 of the range if the crest factor is set to 6 For temperature changes after zero level compensation or range change add ...

Page 320: ...lay Down to 0 3 of the measurement range for Urms and Irms 0 6 if the crest factor is set to 6 Down to 1 of the measurement range for Umn Urmn Imn and Irmn 2 if the crest factor is set to 6 Values less than or equal to these figures are fixed to zero suppressed to zero The integrated current q is dependent on the current value Lower limit of Data update interval 50 ms 100 ms 250 ms 500 ms 1 s 2 s ...

Page 321: ...nfluence to the DC accuracy For details on voltage and current influence see page 12 5 For self generated heat caused by current input on an AC input signal add the following values to the power accuracy 2 A input element 0 004 I2 of reading 30 A input element 0 00002 I2 of reading For self generated heat caused by current input on a DC input signal add the following values to the power accuracy 2...

Page 322: ... off frequency is 500 Hz 45 Hz f 66 Hz Add 0 3 of reading f 45Hz Add 1 of reading When the cut off frequency is 5 5 kHz f 66 Hz Add 0 3 of reading 66 Hz f 500 Hz Add 1 of reading When the cut off frequency is 50 kHz f 500 Hz Add 0 3 of reading 500 f 5 kHz Add 1 of reading Temperature coefficient Same as the temperature coefficient for voltage and current One year accuracy Add reading error of accu...

Page 323: ...mpensation Selectable on models with the delta computation option Scaling Set the current sensor transformation ratio VT ratio CT ratio and power factor in the range of 0 0001 to 99999 9999 when inputting the external current sensor VT or CT output to the instrument Input filter Specify a line filter or a frequency filter See section 12 1 Averaging Measurement Functions of Normal Measurement Selec...

Page 324: ...5 kHz Accuracy 0 05 of reading When the input signal level is greater than or equal to 25 mV current sensor input 150 mA direct current input to the 30 A input element or 1 5 mA direct current input to the 2 A input element and the signal is greater than or equal to 30 0 1 Hz to 440 Hz with frequency filter ON 10 440 Hz to 500 kHz or 30 500 kHz to 1 MHz of the measurement range Except input greate...

Page 325: ...unctions of section 12 3 and those of the motor evaluation function delta computation and harmonic measurement options as described in the Expansion Function User s Manual IM760301 51E Display resolution 600000 Number of displayed items Select from 4 8 16 ALL single list dual list Applicable only to models with the advanced computation G6 or harmonic measurement G5 option Scrolling of displayed it...

Page 326: ...of two displays from numeric waveform bar graph and trend in the top and bottom halves of the divided screen Data Store and Recall Store Store the numerical data and waveform display data in the internal memory Save the stored data to a storage medium 1 Internal memory Approx 30 MB Storage interval 50 ms when waveform is OFF to 99 hours 59 minutes 59 seconds Recall Recall the stored data from the ...

Page 327: ...eriod Applicable to the slave 12 7 External Clock Input Common Item Specifications Connector type BNC connector Input level TTL When Used as a Synchronization Source Ext Clk during Normal Measurement Item Specifications Frequency range Same as the measurement range of Frequency Measurement in section 12 5 Input waveform 50 duty ratio rectangular wave When Used as a PLL Source Ext Clk during Harmon...

Page 328: ...onnector type USB type A connector receptacle Electrical and mechanical Conforms to USB Rev 1 1 specifications Data rate 12 Mbps maximum Supported keyboards 1 104 keyboard US and 109 keyboard Japanese conforming to USB HID Class Ver 1 1 Supported USB mass USB memory USB Mass Storage Class storage devices Power supply 5 V 500 mA 2 per port Number of ports 2 1 For details on the compatible USB devic...

Page 329: ...C1 DT1 and C0 Protocol Conforms to IEEE St d 488 2 1992 Code used ISO ASCII code Address 0 to 30 Clear remote mode Remote mode can be cleared by pressing LOCAL except during Local Lockout For details on the specifications of the GP IB interface see the Communication Interface User s Manual IM760301 17E 12 11 Safety Terminal Adapter Item Specifications Maximum allowable current 36 A Withstand volta...

Page 330: ...quency range Maximum power 150 VA when using the built in printer consumption External dimensions Approx 426 mm W 177 mm H 459 mm D See section 12 13 Excludes the handle and other projections Weight Approx 14 kg main unit 4 input elements and option installed Installation position Horizontal however the stand can be used Vertical position and stacking not allowed Battery backup Setup parameters an...

Page 331: ...nity environment Signal input Within 20 of range within 40 of range if the crest factor is set to 6 D A output Within 20 of FS when FS 5 V Cable condition Same as the cable condition for emission above 1 Applies to products with CE marks For all other products contact your nearest YOKOGAWA dealer 2 The Overvoltage Category is a value used to define the transient overvoltage condition and includes ...

Page 332: ...9 0 3 0 Dimensions with the JIS rack mount kit Rack mount attachment plane Dimensions with the EIA rack mount kit 481 1 0 4 465 7 1 0 3 177 0 3 0 101 6 37 7 Rack mount attachment plane 28 9 28 9 Unless otherwise specified tolerance is 3 however tolerance is 0 3 mm when below 10 mm 32 Rear View Unit mm ...

Page 333: ...rence φ Measurement Functions during Normal Measurement Voltage U V True rms value Irms Rectified mean value calibrated to the rms value Imn Simple average Idc Rectified mean value Irmn Current I A The phase angle can be switched between lead D lag G display and 360 display See section 5 10 Method of Determination Equation For details on the symbols in the equation see the Note on page App 3 Volta...

Page 334: ...1 Q2 Q3 Pc1 Pc2 Pc3 Pc1 Pc2 PcΣ W Ampere hour Ah Volt ampere hour WS VAh Var hour WQ varh RMS MEAN RMEAN DC TYPE1 TYPE2 TYPE3 TYPE1 TYPE2 TYPE3 I n is the nth measured current value N is the number of data updates The time unit is h I n Time n 1 N 1 N S n is the nth measured apparent power value and N is the number of data updates S n Time n 1 N 1 N Q n is the nth measured reactive power value and...

Page 335: ...o wiring units ΣA and ΣB is determined by the number of input elements that are installed in the WT3000 and the selected wiring system pattern For details see section 2 3 The numbers 1 2 and 3 in the equations UΣ IΣ PΣ SΣ QΣ PcΣ WPΣ and qΣ indicate the case when input elements 1 2 and 3 are set to the wiring system shown in the table If elements 2 3 and 4 are set to the wiring system shown in the ...

Page 336: ...sation Wiring Compensation Off Efficiency Compensation Off Element Independent Off Measure SCALING Scaling Off Scaling Item VT VT 1 0000 CT 1 0000 Scaling Factor 1 0000 LINE FILTER Off FREQ FILTER Off AVG Averaging Off Averaging Type Exp Exp Count 2 Lin Count 8 MEASURE User Defined On Off Unit Expression Function1 Off V UMN E1 Function2 Off V UMN E2 Function3 Off V UMN E3 Function4 Off V UMN E4 Fu...

Page 337: ...ut is installed ITEM for Numeric Item No 1 Function U Element Σ Element1 Order Frequency Meas Item U1 I1 FORM for Numeric Numeric Form 4 Items ITEM for Wave Wave Display On U1 to I4 Speed Torque V Zoom Position Element Object Element1 U V Zoom 1 U Position 0 000 I V Zoom 1 I Position 0 000 FORM for Wave Format Single Time div 5 ms Trigger Mode Auto Source U1 Slope Rise Level 0 0 Display Setting In...

Page 338: ...for MATH displayed on models with the advanced computation G6 option Wave Math Display On Common to ITEM for Wave V Zoom Position Common to ITEM for Wave Math Setup Math1 Expression U1 I1 Scale Auto Center 0 0000E 00 Scale div 2 5000E 01 Unit W Label Math1 Math2 Expression ABS U1 Scale Auto Center 0 0000E 00 Scale div 2 5000E 01 Unit V Label Math2 Constant K1 1 0000E 00 K2 2 0000E 00 K3 3 0000E 00...

Page 339: ...4 00 d t 500 ms 3 30 Pst 1 00 Plt 0 65 Plt N value 12 FORM for flicker displayed on models with the voltage fluctuation and flicker measurement FL option Measurement Flicker Flicker Settings Object Element1 Un mode Auto Un Set 230 00 V Frequency 50 Hz Interval 10 min 00 sec Count 12 dmin 0 10 ITEM for cycle by cycle displayed on models with the cycle by cycle measurement CC option List Item No 1 2...

Page 340: ...he advanced computation G6 option Common to Cursor for Wave Cursor for FFT displayed on models with the advanced computation G6 option Trend Cursor Off Trend C1 Trace T1 Trend C2 Trace T2 Trend C1 100 Trend C2 900 HRM SET Freq Band Normal PLL Source U1 Min Order 1 Max Order 100 Thd Formula 1 Total STORE Store Status Off STORE SET Mode Store Store To Memory Store Settin Mode Manual Count 100 Store ...

Page 341: ... 0 0000 Range Lower Torque 50 0000 Rated Upper Torque 50 0000 Rated Upper Rated Freq 15000 Hz Rated Lower Torque 50 0000 Rated Lower Rated Freq 5000 Hz Pulse N Speed 60 Sync Speed Pole 2 Source I1 PRINT MENU applies to models with the built in printer option Print to Built in Print Format Hard Copy D A Output applies to models with the D A output option Item No Function Element S Order Range Mode ...

Page 342: ... No Terminator 1 Cr Lf Date Time Display 1 On Type 1 Manual Config Message Language 1 ENG Menu Language 1 ENG Alphabet Font 1 Gothic LCD Brightness 2 Key Lock 2 Off Shift Lock Off Crest Factor CF3 Graph Color Mode Default Text Color Mode Preset 1 1 Settings that are not initialized through initialization MISC Initialize Settings 2 Initialized when the RST command is sent from the communication int...

Page 343: ... fU FreqU 4 5 UΣA IΣA PΣA SΣA QΣA λΣA φΣA 6 UΣB IΣB PΣB SΣB QΣB λΣB φΣB 7 WP1 q1 WP2 q2 WP3 q3 WP4 q4 8 WPΣA qΣA WPΣB qΣB F1 F2 F3 F4 9 η1 η2 η3 η4 Speed 1 Torque 1 SyncSp 1 Pm 1 16 Item Display Display Page 1 U1 I1 P1 S1 Q1 λ1 φ1 Pc1 fU FreqU 1 fI FreqI 1 U pk1 U pk1 I pk1 I pk1 CfU1 CfI1 2 U2 I2 P2 S2 Q2 λ2 φ2 Pc2 fU FreqU 2 fI FreqI 2 U pk2 U pk2 I pk2 I pk2 CfU2 CfI2 3 U3 I3 P3 S3 Q3 λ3 φ3 Pc3...

Page 344: ... Display Page 1 U1 I1 P1 S1 Q1 λ1 φ1 Uthd1 Ithd1 Pthd1 Uthf1 Ithf1 Utif1 Itif1 2 U2 I2 P2 S2 Q2 λ2 φ2 Uthd2 Ithd2 Pthd2 Uthf2 Ithf2 Utif2 Itif2 3 U3 I3 P3 S3 Q3 λ3 φ3 Uthd3 Ithd3 Pthd3 Uthf3 Ithf3 Utif3 Itif3 4 U4 I4 P4 S4 Q4 λ4 φ4 Uthd4 Ithd4 Pthd4 Uthf4 Ithf4 Utif4 Itif4 5 UΣA IΣA PΣA SΣA QΣA λΣA φU1 U2 φU1 U3 φU1 I1 φU1 I2 φU1 I3 6 UΣB IΣB PΣB SΣB QΣB λΣB φU1 U2 φU1 U3 φU1 I1 φU1 I2 φU1 I3 7 F1...

Page 345: ... 1 TraceName U1 I1 U2 I2 BlockSize 1002 1002 1002 1002 VResolution 1 0000000E 00 1 0000000E 00 1 0000000E 00 1 0000000E 00 VOffset 0 0000000E 00 0 0000000E 00 0 0000000E 00 0 0000000E 00 VDataType FS4 FS4 FS4 FS4 VUnit V A V A VPlusOverData VMinusOverData VIllegalData VMaxData 9 000000e 02 3 000000e 03 3 000000e 03 1 500000e 02 VMinData 9 000000e 02 3 000000e 03 3 000000e 03 1 500000e 02 HResoluti...

Page 346: ... Time 07 03 03 07 03 03 07 03 03 07 03 03 Group3 TraceNumber 2 BlockNumber 1 TraceName Speed Torque BlockSize 1002 1002 VResolution 1 0000000E 00 1 0000000E 00 VOffset 0 0000000E 00 0 0000000E 00 VDataType FS4 FS4 VUnit rpm Nm VPlusOverData VMinusOverData VIllegalData VMaxData 2 000000e 01 2 000000e 01 VMinData 2 000000e 01 2 000000e 01 HResolution 2 0000000E 05 2 0000000E 05 HOffset 0 0000000E 00...

Page 347: ...usOverData Error data when the binary data of each waveform is less than or equal to this value VMaxData Maximum value of the binary data of each waveform VMinData Minimum value of the binary data of each waveform HResolution Value of coefficient HResolution of the X axis conversion equation of each waveform HOffset Value of coefficient HOffset of the X axis conversion equation of each waveform HU...

Page 348: ... current and the waveform is sinusoidal The size of alternating current can be expressed in terms of the instantaneous value maximum value rms value and mean value Normally it is expressed in terms of the rms value The instantaneous value i of the sinusoidal alternating current is expressed by Imsinωt where Im is the maximum value of current ω is the angular velocity defined as ω 2πf and f is the ...

Page 349: ...e u Umsinωt Current i Imsin ωt φ The time offset between the voltage and current is called a phase difference and φ is called a phase angle This time difference is mainly caused by the load to which the power is supplied In general the phase difference is zero when the load consists of only resistance If the load consists of inductance coiled object the current lags the voltage If the load consist...

Page 350: ...power or load is connected in a delta wiring configuration and no neutral line is present the phase voltage cannot be measured In this case the line voltage is measured In addition the line voltage is sometimes measured when measuring a three phase AC power using two single phase wattmeters called the two wattmeter method If the magnitude of the phase voltage of each phase is equal and each phase ...

Page 351: ...d current depending on the phase difference φ The section above the horizontal axis in the figure below represents positive power power supplied to the load and the section below the axis represents negative power power fed back from the load The difference between the positive and negative powers is the power consumed by the load As the phase difference between the voltage and current increases t...

Page 352: ... P UIcosφ W cosφ indicates the ratio of the apparent power that becomes the true power and this is called power factor λ Reactive Power If current I lags voltage U by φ current I can be broken down into a component in the same direction as voltage U Icosφ and a perpendicular component Isinφ Active power P UIcosφ is the product of voltage U and current component Icosφ On the contrary the product of...

Page 353: ...al frequency Harmonic component A waveform component with frequency that is an integer multiple twice or greater of the fundamental frequency Harmonic distortion factor The ratio of the rms value of the specified nth order harmonic contained in the distorted wave to the rms value of the fundamental wave or all waves Harmonic order Integer ratio of the harmonic frequency with respect to the fundame...

Page 354: ...is called inductive reactance and is defined as XL ωL The unit is Ω Inductance works to counter current changes increase or decrease and causes the current phase to lag the voltage L I U U I π 2 Capacity Current i when AC voltage of instantaneous value u Umsinωt is applied to a capacitive load C F is expressed by the equation below i Um XC sin ωt sin ωt π 2 Im π 2 If expressed using rms values the...

Page 355: ...n resistance RS reactance XS and impedance Z is expressed as follows Z RS 2 XS 2 XS XL XC Parallel RLC Circuit The equation below expresses the current relationship when resistance RP Ω inductance L H and capacitance C F are connected in parallel I IRP 2 IL IC 2 U IRPXP RP 2 XP 2 φ tan 1 RP XP RP U 2 XL U XC U 2 RP 1 2 XL 1 XC 1 2 U RP 1 2 XP 1 2 U RP L C I IRP IL IC U U IC IL I IRP φ The relation...

Page 356: ...nt is 0 01 or less If the input is 100 V and 1 A iV 0 01 mA 100 V 10 MΩ then the effect of iV on the measurement accuracy is 0 001 0 01 mA 1 A SOURCE LOAD WT3000 U I iV iL LOAD SOURCE U I I U As a reference the relationship of the voltages and currents that produce effects of 0 01 0 001 and 0 0001 are shown in the figure below 1000 800 600 400 200 0 Measured current A Measured voltage V 0 01 Effec...

Page 357: ... side of the power source and the outer case are grounded In this case two current flows can be considered load current iL and the current that flows through the stray capacitance iCs iL flows through the current measurement circuit then through the load and returns to the power source shown with a dotted line iCs flows through the current measurement source through the stray capacitance and then ...

Page 358: ...he signal to be the synchronization source from the choices below U1 I1 U2 I2 U3 I3 U4 I4 Ext Clk external clock or None The selectable items vary depending on the installed elements For the specifications of the Ext Clk external clock see section 12 7 For example if the synchronization source for input element 1 is set to I1 an integer multiple of the period of I1 becomes the measurement period B...

Page 359: ...nterval to be longer Data update interval Measurement period Synchronization source Zero crossing of the rise ramp Zero crossing of the fall ramp When the Period of the Synchronization Source Cannot Be Detected If there are less than two rising or falling zero crossings of the input signal set as the synchronization source in the data update interval the period cannot be detected In addition the f...

Page 360: ...table if the period of the AC signal cannot be detected accurately Change the synchronization source to a signal that allows more stable detection of the period change from voltage to current or from current to voltage The frequency detection circuit is AC coupled The period of AC signals with no zero crossing due to an offset can be detected if the AC amplitude is greater than or equal to the det...

Page 361: ...current and Σ power of the three phase device can be measured with high accuracy Likewise if a three phase device is measured with input elements 1 2 and 3 using three phase four wire system set the synchronization source of input elements 1 2 and 3 to the same signal To facilitate this sort of configuration the synchronization source setting on the WT3000 is linked to the Σ wiring unit of the wir...

Page 362: ...2 AC end set the synchronization source of input elements 1 and 2 to the voltage or current on the AC power end input element 2 In the example shown in the figure below set the synchronization source of input element 1 and 2 to U2 or I2 Power transformer Input DC power U1 and I1 Output AC power U2 and I2 U2 or I2 Input element 1 Input element 2 Synchronization source setup example Power Transforme...

Page 363: ...e wire system Power transformer AC power U1 and I1 AC power U3 and I3 AC power U2 and I2 U1 or I1 U2 or I2 U3 or I3 Input element 1 Input element 2 Input element 3 Synchronization source setup example To measure the input output efficiency with high accuracy without being affected by the synchronization source setting such as in this case or in the power measurement or efficiency measurement of af...

Page 364: ...ioned example of 3 Power Transformer with Single Phase AC Input and Three Phase AC Output In principle this method is superior in obtaining highly stable measured values because factors such as errors in period detection do not exist Exponential Average for Measuring Period Yn Yn 1 Xn Yn 1 A Xn nth sampled data in the measurement period Yn Output value of the nth exponential average in the measure...

Page 365: ... signal period Computation including simple average is performed based on the sampled data in this measurement period This method requires that the period of the assigned synchronous source signal be detected accurately The synchronization source must be set when using this method The period of the assigned synchronization source signal must also be detected accurately Check to see that the freque...

Page 366: ...ement circuit is connected to the load side The measured current is determined by subtracting the current that flows through the voltage terminal from the current value of each element The current that flows through the voltage terminal is derived by the equation the measured voltage the input resistance of the voltage terminal SOURCE LOAD U I I U Compensation Details The measured value is determi...

Page 367: ...r above η PΣA PΣB U1 U1 RU sf1 I1 I1 RI sf1 U2 U2 RU sf2 I2 I2 RI sf2 Compensation for the Two Wattmeter Method The computation below is performed on the element or wiring unit wired to 3P3W 3V3A Example When elements 1 2 and 3 are set to 3P3W 3V3A Computation step 1 Calculation of compensation values Power Compensation SP The average of u n 1 u n 2 3 i n 1 i n 2 i n 3 Watt hour total Compensation...

Page 368: ...4 5 6 7 8 9 0 Enter a b c d e f g h i j k l m n o p q r s t u v w x y z 1 2 3 4 5 6 7 8 9 0 Escape Same as left FILE menu INTEG menu AVG menu Execute STORE SCALING menu Execute HOLD Execute ELEMENT HRM SET menu LINE FILTER menu Execute IMAGE SAVE MEASURE menu Execute NUMERIC OTHERS menu Execute PRINT FORM menu Execute RESET SHIFT ON ITEM menu UPDATE RATE menu WIRING menu Execute EXT SENSOR SYNC SO...

Page 369: ...ve soft keyboard Cursor in reverse Move soft keyboard Cursor forward Same as left Same as left Same as left Same as left Execute PAGE FIRST Execute PAGE LAST F1 F2 F3 F4 F5 F6 F7 Execute PAGE PREVIOUS Execute PAGE NEXT Cursor to the right Cursor to the left Cursor down Cursor up Select Soft key1 Select Soft key2 Select Soft key3 Select Soft key4 Select Soft key5 Select Soft key6 Select Soft key7 S...

Page 370: ...STORE SET menu MOTOR SET menu Same as left Execute ELEMENTALL Same as left Same as left Same as left IMAGE SAVE menu CURSOR FREQ FILTER menu Same as left Same as left PRINT menu Same as left SHIFT OFF LOWER ITEM menu Same as left Execute INPUT INFO Same as left SENSOR RATIO menu Execute CAL Same as left Same as left Same as left Execute NULL AVG menu Execute STORE SCALING menu Execute HOLD Execute...

Page 371: ...or to the left Cursor down Cursor up Select Soft key1 Select Soft key2 Select Soft key3 Select Soft key4 Select Soft key5 Select Soft key6 Select Soft key7 Same as left Same as left Same as left Same as left Same as left Same as left Same as left F8 F9 F10 F11 µ F12 Ω Print Screen Scroll Lock Pause Insert Same as left Same as left Same as left Same as left Same as left Same as left Same as left Sa...

Page 372: ...o Yes No No No Yes No No No No Yes 1 No No Yes Yes No No No No Yes Yes No No No No Yes Yes No Limit 5 No Limit 6 Yes No Yes No Yes No No No Yes Limit 13 Yes No Yes Yes Yes Yes Yes Yes No No No No Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Option Measurement Mode Normal Measurement Wide Bandwidth Harmonic IEC Harmonic Waveform Computation FFT N...

Page 373: ...Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes No Yes No Yes No Yes No Yes No Yes No No No Yes Yes No No No No No Yes No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes No No No No No No No No No Yes No Yes No Yes No Yes No Yes No Yes No Yes No No No Yes Yes No No No No No Yes No No No No No No No No No No...

Page 374: ...an be measured No Cannot be measured 1 Variable k is the harmonic order and total value The maximum order for which the harmonic data is measured is the maximum harmonic order to be measured that is specified in the harmonic measurement option menu The data is set to no data for harmonic orders without data 2 The total value is not measured in normal measurement mode 3 The measured data for the fr...

Page 375: ...P Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Limit Yes Yes Limit Limit Limit Limit Limit Limit Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No Limit Yes Yes Limit Limi...

Page 376: ...ic Waveform Computation 2 FFT 3 Yes Can be measured or computed Limit The data is set to NAN no data if the harmonic order section of the equation is not set to ORT No Cannot be measured or computed 1 The maximum order for which the harmonic data is measured is the maximum harmonic order to be measured that is specified in the harmonic measurement option menu The data is set to NAN no data for har...

Page 377: ...R3 URMS E1 UMN E1 I E1 OR3 P E1 OR3 S E1 OR3 Q E1 OR3 LAMBDA E1 OR3 PHI E1 OR3 FU E1 FI E1 UPPK E1 UMPK E1 IPPK E1 IMPK E1 PPPK E1 4 PMPK E1 4 CFU E1 CFI E1 PC E1 ETA1 ETA2 ETA3 ETA4 WH E1 WHP E1 WHM E1 AH E1 AHP E1 AHM E1 SH E1 QH E1 TI E1 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 4 Yes 4 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes Yes Yes Yes Yes Yes No No...

Page 378: ...tion User Defined Function Left Parameter in or Parameter in Right Parameter in Element Wiring Unit Normal Value or Total Value 1 DC 2 Fundamental Wave 2 Harmonics 2 Order Example E1 to E4 E5 or E6 ORT OR0 OR1 OR2 to OR100 F1 F2 F3 F4 F1rms 5 F2rms 5 F3rms 5 F4rms 5 F1mn 5 F2mn 5 F3mn 5 F4mn 5 F1rmn 5 F2rmn 5 F3rmn 5 F4rmn 5 F1dc 5 F21dc 5 F31dc 5 F41dc 5 DELTA1 DELTA2 DELTA3 DELTA4 DELTAF1RMS 5 D...

Page 379: ...5 or G6 3 The parentheses cannot be omitted 4 Can be used on WT3000s with firmware version 5 01 or later 5 Can be used on WT3000s with firmware version 4 07 or later User Defined Function F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 None or spa...

Page 380: ...splay interpolation 6 18 display resolution 2 15 displayed items number of 5 2 5 7 displayed items resetting the order of 5 5 distorted wave App 21 distortion factor 2 20 Dual 6 17 7 13 Dual List 5 7 Symbols Page φ 5 6 η Formula 5 20 λ 5 6 Σ functions of normal measurement 2 6 I Position 6 13 I V Zoom 6 13 U Position 6 13 U V Zoom 6 13 180 Lead Lag 5 28 360 degrees 5 28 3P3W 3V3A ΣA Compensation 5...

Page 381: ...al frequency App 21 fundamental wave App 21 fuse v 11 10 12 16 fuse rating 11 10 G Page Gothic 10 5 GP IB 2 37 Graph Color 10 8 graphic color 10 8 10 10 graticule 6 18 6 19 H Page handling precautions 3 1 harmonic component App 21 harmonic distortion factor App 21 harmonic measurement 2 6 harmonic order App 21 harmonics App 21 HELP 10 13 higher harmonic App 21 hold 2 14 4 29 horizontal axis 2 24 I...

Page 382: ... 6 PC card 9 1 PC card formatting of 9 3 phase angle App 17 phase difference 2 20 5 6 5 28 App 17 phase difference display format of 5 28 PNG 9 23 position 2 28 6 13 Post Script 9 23 power App 16 power coefficient setting of 4 16 power consumption maximum 12 16 power cord ii power factor 5 6 App 20 power fuse 11 10 power loss App 24 power range 4 9 4 10 power supply 3 4 power switch turning ON OFF...

Page 383: ...tray capacitance App 25 SUFFIX ii symbols vi Sync Measure 10 14 SYNC SOURCE 4 19 synchronization source 4 19 App 26 synchronization source filter App 28 synchronized measurement 2 38 10 14 system condition 11 9 system conditions 2 37 system configuration 2 1 system errors 11 6 System Overview 11 9 T Page T div 7 9 temperature coefficient 12 6 12 8 Test Exec 11 7 Test Item 11 7 text color 10 9 10 1...

Page 384: ...att hour 5 6 WAVE 6 1 Wave C1 6 24 Wave C1 Trace 6 24 Wave C2 Trace 6 24 Wave C2 x 6 24 Wave Cursor 6 23 Wave Display 6 3 Wave Mapping 6 16 Wave Trace 8 5 waveform 6 1 Waveform Computation 2 33 waveform display data saving of 9 13 waveform mapping 7 13 Waveform Sampling Data 9 9 9 15 waveform zooming of 2 28 weight 12 16 WIRING 4 1 wiring compensation 5 22 wiring precautions 3 7 Wiring Setting 4 1...

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Summary of Contents for wt3000

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YOKOGAWA wt3000, User Manual, Page: 289 / 384

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Summary of Contents for wt3000

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