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PCZ1000A

A-7

Appx.

A.2

Troubleshooting

This section lists countermeasures for the troubleshooting. If you have a problem,
refer to this list to check whether it matches any of the typical symptoms listed. In
some cases, the problem can be solved easily.

If none of the items apply to your case, we recommend that you initialize the
PCZ1000A to the factory default settings (this clears the memory contents). If this
does not correct the problem, contact your Kikusui agent or distributor.

The display remains blank after the POWER switch is turned on.

The display is dark after the POWER switch is turned on.

The input current is unstable or oscillation occurs.

The calibration can not be performed properly for the total
current value (RMS).

See

What to Check

Result

Possible Causes and Countermeasures

Page

Is the voltage at the power
supply (AC) input equal to
the correct rated voltage?

No

The power cable is broken.
Replace with a new power cable.

Yes

The instrument is faulty
Stop using the instrument and arrange for it to be repaired.

-

Is a fuse blown?

Yes

Replace with a spare fuse. If the fuse blows again, arrange to have
the instrument repaired.

See

What to Check

Result

Possible Causes and Countermeasures

Page

Is the power supply
voltage low?

Yes

The power supply voltage is out of the specifications. Use a
voltage that is within the specified operating range.

-

Is the voltage range
selection switch for the line
input voltage set correctly?

No

Set the voltage range selection switch for the input power supply
to the correct setting.

See

What to Check

Result

Possible Causes and Countermeasures

Page

Are there any large loops
in the load wiring?

Yes

Rearrange the load wirings. Twist the wires or connect a capacitor
to prevent oscillation.

Is the load wiring long?

Yes

See

What to Check

Result

Possible Causes and Countermeasures

Page

Is the POWER switch of
the slave unit turned off?

Yes

Turn on the POWER switch of the slave unit.

See

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Содержание PCZ1000A

Страница 1: ...N MANUAL AC Electronic Load Part No Z1 004 002 IB013706 Jul 2018 PCZ1000A General Description Unpacking and Installation Operation Remote Control Maintenance and Calibration Specifications Appendix 1 2 3 4 5 6 ...

Страница 2: ...ences in Operation The following operations differ between the previous PCZ1000A which is equipped with a JOG SHUT TLE dial and this PCZ1000A which is equipped with a rotary knob Parallel Operation and Tracking Operation If the firmware version of the PCZ1000A with a JOG SHUTTLE dial is 1 40 or later parallel operation and tracking operation are possible with the PCZ1000A with a rotary knob Reprod...

Страница 3: ...ltage range is to VAC Use the product within this range only Input fuse The rating of this product s input fuse is A VAC and To avoid electrical shock always disconnect the power cord or turn off the switch on the switchboard before attempting to check or replace the fuse Use a fuse element having a shape rating and characteristics suitable for this product The use of a fuse with a different ratin...

Страница 4: ...ii PCZ1000A This page is intentionally blank ...

Страница 5: ...is output here DANGER Indicates an imminently hazardous situation which if ignored will result in death or serious injury WARNING Indicates a potentially hazardous situation which if ignored could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if ignored may result in damage to the product and other property Shows that the act indicated is prohibited In...

Страница 6: ...s to prevent the possibility of personal injury Purpose of use Never use the product for purposes other than the product s intended use This product is not designed or manufactured for general home or consumer use Input power Use the product within the rated input power voltage range Use the power cord provided For details see the relevant page in the operation manual This product is a IEC Overvol...

Страница 7: ...r voltage and that there is no abnormality in the appearance of the AC power cord Be sure to remove the power cord plug from the outlet before checking If a malfunction or abnormality is detected on the product stop using it immediately and remove the power cord plug from the outlet Make sure the product is not used until it is completely repaired Use cables or wires with sufficiently large curren...

Страница 8: ...tion or when a problem occurs How to read this manual This manual is designed to be read from beginning to end We recommend that you read this manual thoroughly from the beginning before using the PCZ1000A for the first time Intended readers of this manual This manual is intended for users of the PCZ1000A or persons teaching other users on how to operate the PCZ1000A The manual assumes that the re...

Страница 9: ...eaning inspection and calibration Chapter 6 Specifications This chapter gives the specifications and dimensions of the PCZ1000A Appendix The appendix contains the basic operating modes operating range and troubleshooting Notation used in this manual The PCZ1000A AC electronic load is simply referred to as the PCZ1000A in this manual The term computer is used to refer to a personal computer worksta...

Страница 10: ...ching to the Rack Mount Frame 2 5 2 5 Checking the Input Power and Fuse 2 6 2 6 Connecting the AC Power Cord 2 8 Procedure for Connecting the Power Cord 2 8 2 7 Load Wiring 2 9 2 7 1 Precautions Concerning Wiring 2 9 Overvoltage 2 10 Other Precautions 2 10 Input Voltage Waveforms 2 11 2 7 2 Connection to the Load Input Terminals 2 13 Chapter 3 Operation 3 1 Basic Panel Operation 3 2 Function Keys ...

Страница 11: ...s 3 28 3 7 4 Calibration of the Ammeter on the Master Unit During Parallel Operation 3 30 Preparation for Calibration 3 30 Calibration Procedure 3 31 3 7 5 Alarms During Parallel and Tracking Operation 3 33 3 7 6 Returning to Standalone Operation 3 33 3 8 Factory Default Settings 3 34 Chapter 4 Remote Control 4 1 Overview of Remote Control 4 2 4 1 1 RS232C Interface 4 2 4 2 Programming Format 4 4 ...

Страница 12: ...cations 6 2 6 2 Dimensions 6 5 Appendix A 1 Explanation of Operating Functions A 2 A 1 1 Operating Functions A 2 Operating Range A 2 Differences Between DC and AC Loads A 2 A 1 2 Explanation of Operating Mode A 4 Constant Current CC Mode A 4 Constant Resistance CR Mode A 5 Constant Power CP Mode A 6 A 2 Troubleshooting A 7 Index ...

Страница 13: ...in Parallel 3 24 Topic Section in the Manual Page How do I turn the power on and off Turning On the Power 3 5 How do I set the protection functions Protection Functions and Alarms 3 7 How do I use the PCZ1000A in constant current mode CC Mode Operation 3 11 How do I use the PCZ1000A in constant resistance mode Constant Resistance CR Mode 3 12 How do I use the PCZ1000A in constant power mode Consta...

Страница 14: ...xii PCZ1000A Front panel 18 17 Control panel Control panel 1 Display Display 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Страница 15: ... to indicate when CR or CP mode is on 3 10 7 R SET Sets CR mode and to set the resistance limit using the rotary knob 3 3 RANGE Range selection key 8 P SET Sets CP mode and to set the power limit using the rotary knob 3 3 9 A Recalls the preset memory A value pressing the MEM key and A saves the value to preset memory A 3 3 B Recalls the preset memory B value pressing the MEM key and B saves the v...

Страница 16: ...ive socket 3 23 3 PARALLEL IN Connector for parallel operation input Incorporates a protective socket 4 Ventilation outlets Cooling ventilation outlets 2 3 5 LOAD INPUT Load input terminals 2 9 6 Serial number The serial number of the instrument 7 RS232C RS232C connector used by the remote control function 4 2 8 AC INPUT AC power supply inlet 2 8 9 FUSE Power supply fuse holder includes a spare fu...

Страница 17: ...General Description This chapter gives an overview and describes the features of the PCZ1000A ...

Страница 18: ... features a crest factor function which is useful for load testing of peak or harmonic currents This helps reduce design and labor time and cost as well as improve the quality of the equipment under test The instrument always allows a current waveform close to a sine waveform to flow unaffected by the voltage waveform Simple operation The key features can be operated quickly on a one key to one fe...

Страница 19: ...slaves Useful for testing single phase three wire or three phase three wire AC power supply loads 1 4 Options The following options are available for the PCZ1000A For details on the options contact your Kikusui agent or distributor Rack mounting option Part Name Model No Remarks Rack mounting bracket KRB3 For EIA standard inch units racks KRB150 For JIS standard metric units racks KRB3 KRB150 Unit...

Страница 20: ...1 4 PCZ1000A Signal cable for parallel operation Cable used for parallel operation Part name Model No Remarks Signal cable for parallel operation PC01 PCZ1000A 300 mm 10 pin ...

Страница 21: ...Unpacking and Installation This chapter describes the necessary procedures from unpacking the product to preparation before use ...

Страница 22: ...mmable atmosphere To prevent explosion or fire do not use the product near alcohol thinner or other combustible materials or in an atmosphere containing such vapors For 100 V system For 200 V system Manual 1 copy Z1 004 002 Spare fuses 3 pcs Power cord 1 pc In AC inlet 100 V 3 15A 1 pc 99 02 0037 Also supplied 200 V 2A 2 pcs 99 00 0026 In AC inlet 200 V 2A 1 pc 99 00 0026 Also supplied 100 V 3 15A...

Страница 23: ...fire Do not locate the PCZ1000A in a dusty environment Dirt and dust in the product may cause electrical shock or fire Do not use the PCZ1000A where ventilation is poor Secure adequate space around the product so that air can circulate around it Allow at least 20 cm of space between the air inlet outlet and the wall or obstacles Do not place any object on the PCZ1000A In particular do not place he...

Страница 24: ...wires to break or injuries due to the product falling over The PCZ1000A should always be moved by more than one person The PCZ1000A should be relocated by no less than two persons Take extra care when placing the unit on a tilted or uneven surface Never lay the unit on its side or turn it upside down When transporting the PCZ1000A be sure to use the original packing material Transport the PCZ1000A...

Страница 25: ...ides for details about how to attach to the rack We recommend that you keep all the parts so that you can use them again when you detach the product from the frame To reattach the rubber feet use the screws that you removed Fig 2 2 How to Remove the Rubber Feet How to remove the rubber feet Undo the screws and remove the four rubber feet Rubber feet 4 locations Screws for attaching feet 4 location...

Страница 26: ...incorrect rating or using the PCZ1000A with the fuse holder short circuited may damage the PCZ1000A Follow the procedure below to check or change the voltage input range and to check or replace the line input fuse 1 Turn OFF the POWER switch 2 Disconnect the AC power cord from the PCZ1000A 3 Confirm that the position of voltage range selection switch on the rear panel of the PCZ1000A matches the l...

Страница 27: ...indicated by the arrow to lever the fuse holder out of the PCZ1000A 6 Confirm that the rating of the installed fuse is appropriate for the line voltage to be used Also check that the time current characteristics are appropriate for the application Always replace with the correct fuse Fig 2 4 Removing the Fuse Holder Spare Fuses ...

Страница 28: ...able The power cord and plug can be used to disconnect the unit from the AC power line in case of emergency Always plug the cable into a convenient nearby socket from which you can unplug it quickly if necessary and provide sufficient space around the socket Please do not use the supplied power cord on any other equipment The PCZ1000A is an IEC Overvoltage Category II device energy consuming equip...

Страница 29: ...st See Table 2 1 for details of the cables to use to connect to the load input terminals and ensure that the cross section area of the cables is adequate to carry the allowable current recommended by Kikusui over and above the actual current level to be used Also please use cables with insulation able to withstand temperatures of 75 C or higher Table 2 1 Nominal Cross Section Area and Allowable Cu...

Страница 30: ... damage to the instrument The maximum input voltage is 400 Vpeak Do not apply voltages exceeding the maximum voltage of 400 Vpeak to the load input terminals The maximum voltage that can be applied to the load input terminals is 400 Vpeak The PCZ1000A cannot be used with voltages higher than this If an excessive voltage is applied an alarm will be displayed a warning sounded and the load disconnec...

Страница 31: ... synchronization 1 in Fig 2 7 If the input voltage is less than the rated frequency range it will maintain the waveform until complete synchronization 2 in Fig 2 7 In the case of a DC voltage no current flows Fig 2 7 Current Distortion for a Sinusoidal Input Voltage Even if the voltage waveform is a square wave as in 1 in Fig 2 8 a sinusoidal current will flow independently of the input voltage wa...

Страница 32: ...operation may become unstable if a voltage with a DC offset is input as in Fig 2 9 Please do not input voltage waveforms with a DC offset to the PCZ1000A Fig 2 9 Input Voltage Offset Voltage waveform Current waveform Voltage waveform Current waveform Period when input voltage is 0 V 0 V 0 V 1 2 Voltage waveform Input voltage offset Current waveform 0 V ...

Страница 33: ...the load input terminals cover Risk of damage Never connect the load input terminals to the equipment under test while the PCZ1000A is in the load on state Never connect the load input terminals to the AC power line directly 1 Turn off the POWER switch 2 Remove the terminal cover from the load input terminal block 3 Attach crimped terminals to the load wiring Use proper crimped terminals that suit...

Страница 34: ...2 14 PCZ1000A Fig 2 11 Connecting the Load Input Wiring L NG Attachment hole on left Terminal screw Crimped terminal ...

Страница 35: ...Operation This chapter describes each mode and function of the operation ...

Страница 36: ...the setting resolution To vary the limit by a great amount turn the rotary knob quickly Function Keys LOAD Starts or stops load current flow When the key is pressed the LED above it illuminates Pressing the LOAD key again the LED goes off and turns off the load I SET CONFIG The I SET key enables CC mode The CC lamp above the key illuminates and ISET appears on the display ISET key enables the curr...

Страница 37: ...s the SHIFT key and then after the SHIFT LED above the key illuminates press the C F key The LED above this key illuminates and CREST FACTOR appears on the display This key enables the crest factor to be changed with the rotary knob Preset Memory Key MEM DMEM To save the active setting and range in the selected memory location select memory save mode and then press the A B or C key To select the m...

Страница 38: ...L Confirm the setting value called up from preset memory To select the local function LOCAL press the SHIFT key and then after the LED above the key illuminates press the ENTER LOCAL key This switches operation from remote control via an external computer to the local front panel operation During remote control operation REM is displayed at the bottom right of the front panel display as shown in F...

Страница 39: ...part indicates the RMS current Ar peak current Ap and RMS voltage V supplied to the load terminals of the PCZ1000A The lower part shows the operation mode the above example shows I SET which indicates constant current mode and the setting 0 00 A in the above example page 3 34 When the POWER switch is turned on for the first time after purchase the PCZ1000A will start up in its factory default stat...

Страница 40: ... battery may be dead 3 3 Load On Load Off The PCZ1000A switches between the load on and load off states each time the LOAD key is pressed If the protection function operates the PCZ1000A goes to load off automatically Load on Load current is on The LED above the LOAD key illuminates Load off Load current is disconnected The LED above the LOAD key turns off Risk of damage to the PCZ1000A Only conne...

Страница 41: ...n a protection function activates When an alarm occurs the PCZ1000A goes to the load off state displays an alarm message on the lower part of the front panel display and sounds a buzzer Clearing an alarm A generated alarm can be cleared by pressing the SHIFT ESC key If you cannot clear the alarm even when all of the causes of the alarm are eliminated the PCZ1000A may have malfunctioned If this hap...

Страница 42: ...uzzer sounds and the PCZ1000A automatically goes to the load off state Check that the operating temperature is within the range 0 to 40 degrees C and check whether the fan motor has shutdown or whether the front or rear ventilation slots are blocked Also check whether the dust filter for the front ventilation slots is clogged If clogged see Cleaning the Dust Filter on page 5 2 The following messag...

Страница 43: ...External alarm 2 EXT2 This alarm is triggered after approximately 30 seconds if the flat cable used to connect PCZ1000As during parallel or tracking operation becomes disconnected A buzzer sounds and the PCZ1000A automatically goes to the load off state The buzzer is sounded with a longer time interval as for an external alarm 1 The following message appears in the lower part of the front panel di...

Страница 44: ...ge even though CP mode is selected CC and CP LEDs both blink The PCZ1000A is operating in the CC operation range even though CP mode is selected In CP mode the PCZ1000A may not reach the CP operation range and may operate in the CC operation range if the input voltage is low This causes both the C C and C R LEDs to blink For example when 1000 W is set as the PSET value and 10 A is set as the ISET ...

Страница 45: ...ff 2 Press the I SET key to enable CC mode The LED above the I SET key illuminates 3 Turn the rotary knob quickly clockwise to set the current limit value approximately 4 Turn the rotary knob slowly clockwise to set the exact current limit value 5 Press the LOAD key to change to the load on state The LED above the LOAD key illuminates and current flow starts 0 00Ar 0 0Ap 100 1V ISET 0 00A RMS curr...

Страница 46: ...mode works by setting a resistance limit value Ω Resistance limit value setting range H level 1 Ω to 1 kΩ L level 10 Ω to 10 kΩ Fig 3 4 shows the front panel display when set to constant resistance mode The input terminal measurements are displayed on the upper side Fig 3 4 Display in CR Mode 1 If the LED above the LOAD key is on press the LOAD key to change to load off 2 Press the I SET key and s...

Страница 47: ...it value to 8 9285 Ω 8 Use the SHIFT R SET RANGE key to change the range As this example changes to the L range the resistance is limited to the minimum value for the L range 9 0000 Ω in this example and so the current reduces It is not possible to set the resistance limit to less than the minimum value If the resistance limit value is within the region where the H and L ranges overlap 9 0000 Ω to...

Страница 48: ...ange is one tenth of the H range in units of siemens The units for the setting resolution of the resistance limit value is S siemens Accordingly you may sometimes not be able to set your desired resistance limit In this case the PCZ1000A is set the next highest resistance value allowed by the resolution For example if operating in the H range by remote control sending a setting input of 251 Ω 3 98...

Страница 49: ...s CP Mode 1 If the LED above the LOAD key is on press the LOAD key to change to load off 2 Press the P SET key to enable CP mode The C C and C R LEDs illuminate 3 Use the rotary knob to set the power limit value 4 Press the LOAD key to change to the load on state The LED above the LOAD key illuminates and current flow starts 0 00Ar 0 0Ap 179 6V PSET 1050W RMS current value Peak current value RMS v...

Страница 50: ...LED at the top of the panel illuminates 3 Press the SHIFT C F key to enable the crest factor function The LED above the C F key illuminates 4 Pressing the C F key again allows the crest factor setting to be specified the existing setting appears in the lower part of the display CREST FACTOR appears in the lower part of the display 5 Use the rotary knob to set the crest factor The crest factor is s...

Страница 51: ...or function Changing the crest factor setting does not change the current limit value In other words this can be used to change the peak current value only while leaving the RMS value of the current unchanged The crest factor function can only be used in CC mode 3 6 Saving and Recalling Preset Memory Three preset memories A B and C are available in each mode and can be used to save and recall the ...

Страница 52: ...he lower part of the front panel display 5 Press the A B or C key to save to one of the preset memories Example Save in preset memory A 6 Press the MEM or ESC key to end the save operation The display returns to its state prior to saving To save the crest factor value in CC mode to memory first set the crest factor value and then press the I SET key to change to CC mode then press the MEM key foll...

Страница 53: ... enclosed in indicates the preset memory location 3 Press the A key 4 Press the SHIFT RSET RANGE key This changes the range from H to L The range changes to the new setting immediately 5 Press the SHIFT MEM DMEM key or ESC key to end the operation 6 Press the SHIFT R SET RANGE key 7 Press the C key 8 Use the rotary knob to change the limit value The limit value changes to the new setting immediate...

Страница 54: ... key A B or C corresponding to where the preset memory settings are stored The limit value saved in preset memory is displayed in the lower line enclosed in 3 Press the ENTER key The present limit value changes to the applied setting limit value from the recalled preset memory To cancel without setting the recalled value cancel the operation by pressing the ESC key instead of the ENTER key 7 13Ar1...

Страница 55: ...ng single phase three wire or three phase three wire AC power supplies Parallel operation and tracking operation cannot be used in the following combinations Combination with PCZ1000As and PCZ1000s older models Combination with PCZ1000As with firmware version 1 40 or later and PCZ1000As with less than version 1 40 3 7 1 Configuration CONFIG Settings The operation of the PCZ1000A can be set to stan...

Страница 56: ...ET CONFIG The front panel shows the setting number setting name and current value as shown in Fig 3 7 2 Use the rotary knob to select the setting value 3 Press the ENTER key to move to the next setting 4 Repeat Step 2 and Step 3 to specify the other settings 5 Use the SHIFT I SET CONFIG key or ESC key to exit configuration setting 1 Norm M S MASTER No Setting Setting value ...

Страница 57: ...curacy PEAK 4 of FS page 3 24 Always keep the load wiring away as possible from the flat cable to prevent possible unstable operation Fig 3 8 Parallel Connection with Two Slave Units Table 3 2 shows the relation between the capacity and the number of parallel units Table 3 2 Capacity and Number of Parallel Units See PARALLEL IN PARALLEL IN PARALLEL OUT PARALLEL OUT L L L N N N G G G G L Equipment ...

Страница 58: ...f the POWER switch on each unit before reconnecting Risk of damage to the instrument Take care not to get the PARALLEL IN connector and PARALLEL OUT connector mixed up Ensure that the load cable is as short as possible with a sufficient cross section area for the current level being used Note that the ammeter RMS peak on the master unit will not display correctly if the flat cable used for paralle...

Страница 59: ... off state 3 Press SHIFT I SET CONFIG 4 Press the ENTER key to select 1 Norm M S 5 Use the rotary knob to select MASTER or SLAVE 6 Use the ENTER key to select 2 Para Track 7 Use the rotary knob to select PARALLEL Selecting PARALLEL for parallel operation causes the total current from the master and slave units to be displayed on the ammeter display of the master unit 8 On a slave unit press the SH...

Страница 60: ...t want to calibrate the total current on the master unit press the SHIFT I SET CONFIG key or the ESC key to exit CONFIG setting When parallel operation is set the number of units connected in parallel is displayed on the bottom left of the front panel display The example below is for the case when two units are connected Although the set ranges for the current power and resistance are all increase...

Страница 61: ...e the current reading of each unit Fig 3 10 shows connection example Fig 3 10 Tracking Operation Connection U L1 V N Unit under test Three phase three wire power supply Three phase three wire connection example Single phase three wire connection example Unit under test Single phase three wire power supply PARALLEL IN PARALLEL IN PARALLEL IN PARALLEL OUT PARALLEL OUT PARALLEL OUT L L L N N N G G G ...

Страница 62: ... on each of the PCZ1000A are as similar in length as possible 1 Turn off the POWER switch 2 Connect the cables to the load input terminals Referring to the connection diagram in Fig 3 10 connect the cables to the load input terminals on each unit which must all be of the same model 3 Connect the parallel operation connector Use the option flat cable PC01 PCZ1000A to connection between the PARALLEL...

Страница 63: ...b to select TRACKING 8 Press the SHIFT I SET CONFIG key or ESC key to exit CONFIG setting When tracking operation is set T appears on the bottom left of the front panel display On the slave units T Slave appears on the front panel display 1 Norm M S MASTER 2 Para Track TRACKING 0 00Ar 0 0Ap 100 1V T ISET 5 00A 0 00Ar 0 0Ap 100 1V T Slave ...

Страница 64: ...g the test Also maintain the ambient temperature at 23 C 5 C Equipment AC power supply An AC power supply with adequate capacity to supply the combined requirements of all the instruments Output current RMS Number of units x 10 A Output current peak Number of units x 40 A Output voltage RMS 10 V AC ammeter A meter with sufficient range to measure an RMS current of number of units x 10 A and a peak...

Страница 65: ...TER key to select 3 Parallel Ope 7 Use the rotary knob to set the number of units This example sets the number of units to two 8 Press the ENTER key to display 4 Calibration This changes the PCZ1000A to calibration mode Proceed to the calibration procedure Calibrating the offset and gain for the total current RMS 1 Press the I SET key to display IRS OFFS XXXXX XXXXX is the RMS offset value 2 Press...

Страница 66: ...itch of the slave unit is not in the off position contact your Kikusui distributor agent Calibrating the offset and gain for the total current peak 1 Press the R SET key to display IPS OFFS XXXXX XXXXX is the peak offset value 2 Press the LOAD key to change the PCZ1000A to the load on state 3 Use the rotary knob to set the offset value on the front panel display to the value on the externally conn...

Страница 67: ...hich the alarm occurred goes to the load off state The display on the PCZ1000A on which the alarm occurred is ALARM EXT2 Note that if the flat cable used to connect PCZ1000As in parallel becomes disconnected during parallel or tracking operation the ammeter rms and peak on the master unit will not read correctly Clearing alarms Pressing the SHIFT ESC ALM CLR key clears the alarm a new alarm will b...

Страница 68: ...or approximately 2 seconds and the instrument is set back to its factory default settings Fig 3 12 Completion Screen When Restoring Factory Default Settings The table below lists the factory default settings The A B and C preset memories are also restored to their factory default settings Table3 3 Factory Default Settings Setting Setting Value Panel Setting Current limit 0 A Resistance limit 1000 ...

Страница 69: ...pter describes how to program the remote control features of the PCZ1000A using an external device such as a personal computer The explanation covers the command syntax details of each command and the registers Remote Control ...

Страница 70: ... female to female AT type cross cable Fig 4 1 shows the connector pin arrangement Because the PCZ1000A does not use hardware handshaking the DTR 4 DSR 6 and RTS 7 CTS 8 wires are not necessary to be connected Plug the RS232C cable into the RS232C connector on the rear panel Fig 4 1 9 Pin AT Type Connector 4 40UNC Inch screw 4 40UNC Inch screw 1 CD carrier detect 2 RXD receive data 3 TXD transmit d...

Страница 71: ...etween the PC and PCZ1000A Item Setting Connector 9 pin D sub terminal on the rear panel Baud rate Fixed at 9 600 bps Data Fixed at 8 bits Stop Fixed at 2 bits Parity Fixed at none Flow X flow control XON XOFF Code Function ASCII Code DC1 Request to send 11H DC3 Transmission stop request 13H DC3 RXD DC1 TXD The RS232C terminal must pause transmission within 10 characters after receiving DC3 Within...

Страница 72: ... from the PCZ1000A The message is an ASCII code character string consisting of a header with a question mark data and other information The PCZ1000A does not support use of the compound message delimiter Multiple messages The messages contain multiple program messages and query messages Response Message A response message is information returned from the PCZ1000A to the computer in response to a q...

Страница 73: ...Power KW W or MW Default W Resistance KOHM OHM or MOHM Default OHM CREST FACTOR No unit Where K 103 M 10 3 Figures to the right of the least significant digit are rounded down The PCZ1000A does not support the use of exponents Note that the PCZ1000A discards figures to the right of the least significant digit rather than rounding them off Number of significant digits I SET value Two decimal places...

Страница 74: ...er string data such as ON and OFF 4 3 2 Configuration of Device Messages Basic Messages Number program data SP SP SP SP SP SP SP LOAD CCRP CRRANGE ISET RSET PSET CFSET CURR CURP VOLT A OHM W Decimal program data Decimal program data Decimal program data Decimal program data SP CF Number program data Number program data Number program data Character program data Character program data SYSCON ALMCLR...

Страница 75: ... PSET 45 W to 1050 W 2 Sets an PSET value PSET Returns an PSET value CF 0 OFF Disables the crest factor 1 ON Enables the crest factor CF Returns 0 1 CFSET 1 4 to 4 0 Sets a CREST FACTOR value CFSET Returns a CREST FACTOR value CURR Returns the RMS value of the input current CURP Returns the peak value of the input current VOLT Returns an input voltage value SYSCON Returns the following settings 3 ...

Страница 76: ...e messages 0 OFF Specifies that headers are not to be attached to response messages HEAD Returns 0 1 FAU2 IDN ERR HEAD Number program data FAU Header Name Data Operation CTRLZ Returns the control Z code 1Ah XON 11h Resumes RS 232C transmission See RS232C communications on page 4 3 XOFF 13h Halts RS 232C transmission LLO 1 ON Sets local lockout 0 OFF Cancels local lockout LLO Returns 0 1 RST Resets...

Страница 77: ...o provide the response message to an FAU request To determine the present status send FAU to clear the register and then send FAU again to retrieve the present status Fault Register 2 Bit Decimal Value Status of Fault Register 0 1 Overvoltage protection triggered OVP 1 2 Overcurrent protection or peak overcurrent protection triggered OCP POCP 2 4 Overheat protection triggered OHP 3 8 Internal circ...

Страница 78: ...uest Communication Command Errors If an error occurs in a communication command the following message is displayed on the lower part of the front panel display for 2 seconds Bit Decimal Value Status of Error Register 0 1 Error in program header area 1 2 Error in data other than program header 2 4 Error due to data out of range 3 8 Received message is not currently enabled 4 16 Buffer full CR or CF...

Страница 79: ...Maintenance and Calibration This chapter describes the maintenance procedures including cleaning inspection and calibration ...

Страница 80: ...gently wipe using a soft cloth with water diluted neutral detergent Do not use volatile chemicals such as benzene or thinner as they may discolor the surface erase printed characters cloud the display and so on Replacing the Backup Battery The PCZ1000A has an internal battery used to backup the panel settings when the power is turned off If the panel settings when the instrument is turned on are n...

Страница 81: ...base then pull the louver toward you Fig 5 1 Removing the Louver 2 Clean the front panel louver Use a vacuum cleaner to remove any dust or dirt from the dust filter If particularly dirty clean with water diluted neutral detergent and then leave to fully dry Reattaching the louver 3 Align the projections at its upper section with the recessed parts of the instrument 4 Fit the lower section onto the...

Страница 82: ...5 4 PCZ1000A This page is intentionally blank ...

Страница 83: ...Specifications This chapter gives the specifications and dimensions of the PCZ1000A ...

Страница 84: ...mArms Input voltage variations 8 Within 100 mArms Temperature coefficient at the rated current 200 ppm C typical Constant resistance CR mode 9 Setting range H range Full current at 10 V 1 Ω to 1 kΩ 1 S to 1 mS 10 L range Full current at 100 V 10 Ω to 10 kΩ 0 1 S to 0 1 mS 10 Setting resolution H range Full current at 10 V 1 mS 10 L range Full current at 100 V 0 1 mS 10 Setting accuracy in current ...

Страница 85: ...ched 5 seconds or more after state change 6 At temperature 23 5 C 7 Changes in the input current when variations in the rated voltage range are given at an input voltage of 100 Vrms and an input current of 10 Arms based on the nominal value of the input line voltage 8 Changes in the input current when the input voltage is changed from 10 Vrms to 280 Vrms at an input current of 3 57 Arms rating at ...

Страница 86: ...61010 1 2001 Class I 1 Pollution degree 2 2 1 This is a Class I equipment Be sure to ground this product s protective conductor terminal The safety of this product is only guaranteed when the product is properly grounded 2 Pollution is addition of foreign matter solid liquid or gaseous that may produce a reduction of dielectric strength or surface resistivity Pollution Degree 2 assumes that only n...

Страница 87: ...mm inch 4 M screw holes including opposing surfaces max depth 16 mm 0 63 inch 4 M screw holes max depth 6 mm 0 24 inch MAX455 17 91 128 5 04 MAX150 5 91 430 16 93 371 14 61 29 5 1 16 29 5 1 16 70 2 76 275 10 83 55 2 17 400 15 75 90 3 54 17 0 70 26 1 02 MAX465 18 31 MAX20 0 79 21 0 83 ...

Страница 88: ...6 6 PCZ1000A This page is intentionally blank ...

Страница 89: ...The appendix contains the basic operating modes operating range and troubleshooting Appendix ...

Страница 90: ...ferences Between DC and AC Loads In general a constant current load always maintains current flow at a constant level regardless of the applied voltage DC loads operate in this way in constant current mode For AC loads if it operates in the way mentioned above the current waveform becomes square rectangular regardless of the waveform of the applied voltage which differs from a realistic AC load in...

Страница 91: ...ntaneous value value X t at time t on the alternating current waveform voltage or current Apparent power VA Product of the root mean square value of the voltage Vrms and current Irms VA Vrms Irms Active power P W Mean value of the product instantaneous power p t of the instantaneous value of the voltage v and that of the current i Crest factor CF Ratio of the peak crest value of the voltage or cur...

Страница 92: ...C represents operation in CP mode As the RMS value of the input voltage V1 increases the operating point of the PCZ1000A moves upwards from point A in CC mode Operation changes to CP mode when the operating point reaches point B Further increases in V1 cause the current to decrease see the above explanation of CC mode operation When the operating point is on line 0 A the internal PCZ1000A senses a...

Страница 93: ...sents operation in CP mode As the RMS value of the input voltage V1 increases the operating point of the PCZ1000A in CR mode starts from point F then changes to operation in CC mode on reaching point G As the voltage increases further to reach point H the PCZ1000A operation changes again to CP mode see the above explanation of CR mode operation Note that depending on the PSET and RSET values the o...

Страница 94: ...es as a constant power load as shown in Fig A 8 load within the range shown in Fig A 1 If the RMS input voltage increases the PCZ1000A reduces the RMS current flow accordingly to keep the apparent power P V x I constant In Fig A 8 P V2 x I2 V3 x I3 Fig A 8 CP Mode rms value of the input current I rms value of the input voltage V 0 V3 V2 I3 I2 Constant power curve ...

Страница 95: ... voltage No The power cable is broken Replace with a new power cable 2 8 Yes The instrument is faulty Stop using the instrument and arrange for it to be repaired Is a fuse blown Yes Replace with a spare fuse If the fuse blows again arrange to have the instrument repaired 2 8 See What to Check Result Possible Causes and Countermeasures Page Is the power supply voltage low Yes The power supply volta...

Страница 96: ...panel x may varies depends on the contents of the error Yes The calibration data is changed to the abnormal value due to the internal memory is deteriorated arrange to have the PCZ1000A repaired 3 5 No Abnormal condition has been occurred in the internal circuit Immediately stop using the PCZ1000A and arrange for it to be repaired See ...

Страница 97: ... 2 constant current mode 3 11 A 2 A 4 constant power mode 3 15 A 6 constant resistance mode 3 12 A 5 crest factor function 3 3 3 16 A 3 current limit value 3 2 current waveform A 2 A 3 distortion A 2 D dust filter 5 2 E electrical specifications 6 2 error A 8 F factory default settings 3 34 firmware versions 1 2 fuse 2 6 3 5 3 8 A 7 G general specifications 6 4 grounding 2 8 H H range 3 14 6 2 L L...

Страница 98: ...header 4 5 message terminator 4 4 protocol 4 3 R rack mounting option 1 3 RANGE switch 3 5 resistance limit value 3 3 S signal cable for parallel operation 1 4 storage humidity range 2 3 temperature range 2 3 U use in a flammable atmosphere 2 2 V voltage range selection switch for the line input 2 6 A 7 ...

Страница 99: ......

Страница 100: ...y can be provided for a fee In either case please contact your Kikusui agent or distributor At that time inform your agent or distributor of the Part No written on the front cover of this manual Every effort has been made to ensure the accuracy of this manual However if you have any questions or find any errors or omissions please contact your Kikusui agent or distributor After you have finished r...

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