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PLZ-4WH

External Control

The settings in each operation mode normally use the internal reference signal. In external
control, the reference signal is supplied externally. The external signal is supplied as a
voltage (analog voltage control) or resistance (resistance control). In addition, digital control,
such as the turning on and off of the load, can be performed, and signals that indicate the
status can be produced.

The EXT CONT connector is used for external control.

Analog Voltage Control

CC, CP, CR, and CV mode values

Resistance Control

CC, CP, CR, and CV mode values

Digital Control

Turning the load on and off and monitoring its status

Range control for each operation mode

Unpausing during sequence operation

Forced alarm generation

Alarm clearing

Signal Output

Load on/off status signals

Range monitoring for each operation mode

Input current monitoring

Input voltage monitoring

Relay contact output for the short function

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Summary of Contents for PLZ1004WH

Page 1: ... and Preparation Basic Functions Advanced Operations Sequences External Control and Master Slave Control Remote Control Maintenance App User s Manual PLZ 4WH Series Electronic Load 1 2 3 4 5 6 7 Specifications 8 PLZ164WH PLZ334WH PLZ1004WH ...

Page 2: ... with sufficient basic knowledge of how to control instruments using a personal computer If you find any incorrectly arranged or missing pages in the manual they will be replaced If the manual gets lost or soiled a new copy can be provided for a fee In either case please contact Kikusui distributor agent and provide the Kikusui Part No given on the cover The Operation Manual has been prepared with...

Page 3: ... is a collective term for personal computers and workstations The following markings are used in this manual Indicates a potentially hazardous situation which if ignored could result in death or serious injury Indicates a potentially hazardous situation which if ignored may result in damage to the product or other property Indicates information that you should know Explanation of terminology or op...

Page 4: ...ect the protective conductor terminal of the product to electrical ground safety ground Relocation Turn off the POWER switch and disconnect the cables before relocating the product The product weighs over 20 kg When moving the product have more than one person carry it The weight of the product is indicated on the rear panel of the product and in the specification table in this manual Remove all w...

Page 5: ...power plug Do not insert the power plug to an outlet where accessibility to the plug is poor And do not place objects near the outlet that would result in poor accessibility to the plug The PLZ 4WH Series Electronic Load is a multifunctional system designed to offer the highest levels of reliability and safety The electronic load contains a stable and high performance current control circuit that ...

Page 6: ...for printers There are AC electronic loads and DC electronic loads The PLZ 4WH is a DC electronic load for use with DC circuits Basic Operation Modes The following six operation modes are available on the PLZ 4WH 1 Constant current mode CC mode 2 Constant resistance mode CR mode 3 Constant power mode CP mode 4 Constant voltage mode CV mode 5 Constant current and constant voltage mode CC CV mode 6 ...

Page 7: ...de 38 Configuring CV mode 38 Constant Power Mode CP mode 39 Configuring CP mode 39 Switching 40 Setting the switching level 40 Setting the switching interval 41 Turning the switching function on and off 41 Slew Rate 42 Setting procedure 42 Soft Start 43 Short 44 Turning the short function on and off 44 Locking the Keys 45 Switching from Remote Mode to Local Mode 46 3 Advanced Operations Memory Typ...

Page 8: ... Ending parallel operation 108 6 Remote Control Overview 110 Setting the interface 110 Contents of the Included CD ROM 111 Installing the VISA library 112 Installing the application software 113 Command Details 114 7 Maintenance Inspection 116 Internal inspection 117 Backup battery replacement 117 Calibration 118 What gets calibrated 118 Preparation 119 CC Mode Calibration Calibration numbers 1 2 ...

Page 9: ...V mode p 35 How do I set the protection functions to prevent damage to the DUT Protection Functions p 53 How do I use remote sensing to stabilize the PLZ 4WH Remote Sensing p 27 How do I check the menu contents Menu p 58 How do I reset the PLZ 4WH to its factory default settings Factory Default Settings Initialization p 60 How do I operate the PLZ 4WH at a specified current How do I save current v...

Page 10: ...s a pulse signal during sequence or switching operation p 102 6 REMOTE Connector for expanding functions 7 Air inlet An air inlet for cooling It has a dust filter 8 Handle A handle for carrying the PLZ 4WH 9 Feet PLZ164WH PLZ334WH Four locations on the bottom PLZ1004WH Four locations on the bottom four locations on the side p 15 17 16 15 1 2 3 4 5 6 8 7 2 3 4 5 6 9 8 1 9 9 7 10 11 12 13 14 19 18 2...

Page 11: ...e fundamental settings current conductance voltage or power MENU key Displays the menu setup screen p 58 25 RANGE key Switches between the appropriate ranges current conductance voltage or power for the current operation mode V RANGE key Switches between voltage ranges 26 SLEW RATE key Used to set the slew rate p 42 SHORT key Turns the short function on and off p 44 27 OPP OCP key Used to set the ...

Page 12: ...nnector p 105 4 S S Remote sensinh terminal p 27 5 DC INPUT The load input terminals on the rear panel for connecting the DUT and the PLZ 4WH p 19 6 GPIB GPIB cable connector for controlling the PLZ 4WH remotely 7 RS232C RS232C port for controlling the PLZ 4WH remotely 8 USB USB port for controlling the PLZ 4WH remotely 9 AC INPUT Power inlet p 16 10 Serial number The serial number of the PLZ 4WH ...

Page 13: ...Installation and Preparation This chapter describes how to unpack and prepare this product before you use it 1 ...

Page 14: ...l packing materials in case the product needs to be transported at a later date Accessories Power code 1 pc 85 AA 0004 85 10 0840 Rated voltage 125 Vac PLUG NEMA5 15 Rated voltage 250 Vac PLUG CEE7 7 85 10 0790 Rated voltage 250 Vac PLUG GB1002 or or Setup Guide 1 pc Z1 004 970 Quick Reference Japanese Z1 004 980 1pc English Z1 004 982 1 pc CD ROM 1 pc SA 6035 Load input terminal cover 1 pc Lock p...

Page 15: ...s disassembled from the rack mount it is recommended that all the removed parts are kept in the storage Once the unit is disassembled from the rack mount please attach all the removed parts to original location of each part Removing the handle and feet 1 Pull up on the handle cover two locations 2 Unfasten the M4 flat head screws two locations and remove the entire handle 3 While pulling down on t...

Page 16: ...ipment equipment with a protective conductor terminal Be sure to earth ground the product to prevent electric shock Connect the protective conductor terminal to earth ground Use the supplied power cord to connect to an AC power line If the supplied power cord cannot be used because the rated voltage or the plug shape is incompatible have a qualified engineer replace it with an appropriate power co...

Page 17: ...y condition The measured value displayed section with mA V and W unit indicates coarse zero The characters SET shown under the measured value is highlighted with an underline You can enter the fundamental setting for the selected operation mode 6 Push LOAD Check that the LED above the key illuminates 7 Push LOAD again Check that the LED above the key turns off If an odd sound odd odor fire or smok...

Page 18: ...ed off immediately after the settings have been changed the last settings may not be stored Nothing is displayed Make sure that the power cord is connected properly and then turn the POWER switch on again Adjusts the contrast of the display p 30 Abnormal current or voltage values are being displayed Turn the PLZ 4WH POWER switch off and then on again An alarm has occurred A protection function has...

Page 19: ... that have a low heat resistance are used when the ambient temperature is 30 C or greater or when wires are bundled together and little heat is radiated WARNING Improper use of load wires may lead to fire Use load wires whose capacity is adequate for the PLZ 4WH s rated output current Possible electric shock Use load wires whose rated voltage meets or exceeds the PLZ 4WH s isolation voltage For de...

Page 20: ...A µs will generate a voltage of 50 V The negative load input terminal provides the reference potential for the external control signal The generated voltage may cause the device connected to the external control signal to malfunction When the electronic load is in constant voltage constant resistance or constant power mode it uses the voltage at the load input terminals to change the load current ...

Page 21: ... as short as possible and twist it If you only need to use DC operation connecting a capacitor and a resistor to the load input terminals can reduce oscillation Do not exceed the capacitor s ripple current rating Optimizing the response speed You can change the response speed in CC mode CV mode and CR mode The wiring inductance can cause the current to lag the voltage This can result in unstable c...

Page 22: ...ty The protection functions are activated when a reverse voltage of approximately 0 4 V or greater is applied If this happens turn off the DUT immediately CAUTION Do not apply a voltage that is greater than the maximum voltage of 650 Vdc to the load input terminals Doing so may damage the product 100 00A 150 00V 16 50W CC 0 000 A SET SLEWRATE 2 50 mA µs ALARM ENTER OVP H 8 25A 650V CAUTION Connect...

Page 23: ...en the output is turned on The load input terminals on the front panel are connected internally to the load input terminals on the rear panel The voltage applied to the terminal on one side is transmitted directly to the terminal on the other side CAUTION To avoid damaging the product observe the following precautions Do not connect the DUT to the DC INPUT terminals when the load is on Do not conn...

Page 24: ...e DC INPUT terminals on the rear panel have open bolt holes M8 for connecting the load wiring Attach appropriate crimping terminals 5 Pass the wiring that you want to connect to the load through the attached load input terminal cover 6 Connect the load wires to the load input terminals on the rear panel using the included load input terminal screw set Lock plate Insert the lock plates into the slo...

Page 25: ... to the positive terminal of the DUT and connect the negative load input terminal on the rear panel to the negative terminal of the DUT Removing the load input terminal cover Open the lock plates on both sides to remove the pins from the holes in the cover Move the cover until it touches the panel and then pinch in the direction of the arrows so that the side of the cover sticks out While the side...

Page 26: ...the DUT is off 3 Connect the load wires to the load input terminals on the front panel 4 Connect the load wires to the output terminals of the DUT Connect the positive load input terminal on the front panel to the positive terminal of the DUT and connect the negative load input terminal on the front panel to the negative terminal of the DUT WARNING To avoid electric shock attach insulation caps to...

Page 27: ...s However for adequate mechanical strength use wires whose nominal cross sectional area is 0 5 mm2 or greater 1 Turn the POWER switch off 2 Connect the sensing terminals to the DUT using sensing wires Connect the positive remote sensing terminal on the rear panel S to the positive terminal on the DUT In the same way connect the negative remote sensing terminal S on the rear panel to the negative t...

Page 28: ...28 PLZ 4WH Remote Sensing ...

Page 29: ...Basic Functions This chapter explains the operations for each operation mode and other basic functions 2 ...

Page 30: ...gain while the menu is shown the selected item changes The selected item changes to the next lowest item each time you press the key When you finish the key operation the item at that point is selected and the popup menu is cleared automatically How to use the SHIFT key The SHIFT key switches the function of each key If you press a key without holding down SHIFT the function indicated above the ke...

Page 31: ... switch p 58 To start the PLZ 4WH with the load turned on from the menu select 2 Configuration 2 Power On Load On ON Turn the power switch off and then on again to enable the settings Displaying the time that has elapsed since the load was turned on This function which displays the time that has elapsed since the load was turned on is useful when used in conjunction with undervoltage protection UV...

Page 32: ...the DUT turn the device off Turning the load off after a specified amount of time The function for turning the load off after a specified period of time is convenient for discharge testing of batteries and capacitors By factory default the load on timer is off p 58 To turn the load on timer on from the menu select 1 Setup 4 Cut Off Time and set the time When the load turns off a popup window appea...

Page 33: ...R CV mode Constant voltage mode CV mode Constant power mode CP mode Switching between operation modes To switch between operation modes press MODE while the load is off You can press CV SHIFT MODE in CC mode or CR mode to add CV mode You can add CV mode even while the load is on Operation mode CC CC CV CR CV CR CV CP 0 0000A 0 00V 0 00W CC SLEWRATE 0 0000 A 132 00 mA µs SET CP CC CR CV CV MODE CV ...

Page 34: ...s and the range that you selected appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 65 V and 650 V Press VRANGE SHIFT RANGE until the range that you want to select is highlighted After you sele...

Page 35: ... setting entry condition If SET is not highlighted press SET VSET to switch to the fundamental setting entry condition 4 Turn the rotary knob to set the current and voltage The value that you can set current or voltage changes when you press SET VSET The CC CV mode settings are complete Press LOAD to start testing You can change the current and voltage even when the load is on SWITCHING ENTER SHOR...

Page 36: ...ge that you want to select is highlighted After you select a range the popup menu disappears and the range that you selected appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 65 V and 650 V Pre...

Page 37: ...tches to CR CV mode and CR CV appears on the display 3 Make sure that the PLZ 4WH is in the fundamental setting entry condition If SET is not highlighted press SET VSET to switch to the fundamental setting entry condition 4 Turn the rotary knob to set the conductance and the voltage The value that you can set conductance or voltage changes when you press SET VSET The CR CV mode settings are comple...

Page 38: ...s along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 65 V and 650 V After you select a voltage range it appears on the display Press VRANGE SHIFT RANGE until the range that you want to select is highlig...

Page 39: ... appears along with its full scale value The full scale value varies depending on the model 4 Press VRANGE SHIFT RANGE to select the voltage range The voltage range popup menu appears Each time you press VRANGE SHIFT RANGE the voltage range switches between 65 V and 650 V Press VRANGE SHIFT RANGE until the range that you want to select is highlighted After you select a voltage range it appears on ...

Page 40: ...g level to a current or conductance value 1 Press LEVEL The LEVEL key lights and in CC mode the current can be set in CR mode the conductance can be set 2 Turn the rotary knob to set the switching level Setting the switching level to a percentage The specified current or conductance level is equivalent to 100 1 Press SHIFT LEVEL The LEVEL key lights and you can set the switching level to a percent...

Page 41: ...me interval is 50 µs The maximum duty ratio is limited as the frequency gets higher Setting the switching interval using two HIGH and LOW operation times Th and TL Set the HIGH and LOW times It does not matter whether you set the HIGH or LOW time first In the following example the HIGH time will be set first 1 Press Th TL SHIFT FREQ DUTY until Th is highlighted The Th TL key lights and the HIGH ti...

Page 42: ...ically You can set the slew rate according to the current range as an amount of current change per unit of time Setting procedure In CR mode the slew rate affects the response speed Decreasing the slew rate may decrease the response speed 1 Press SLEW RATE The SLEW RATE key lights 2 Turn the rotary knob to set the slew rate SWITCHING ENTER SHORT EDIT SLEW RATE RUN STOP UVP PAUSE STORE RECALL A B C...

Page 43: ...he load is on and voltage is applied to it after a period of no input 0 V You can reduce the amount of output voltage distortion that occurs when the DUT starts by setting an appropriate soft start time p 58 To set the soft start time 1 ms 2 ms 5 ms 10 ms 20 ms 50 ms 100 ms or 200 ms from the menu select 1 Setup 1 Function Soft Start Time 0 Time 0 When the soft start time is too fast When the soft...

Page 44: ...et to the maximum current value in constant resistance mode CR mode the fundamental setting is set to the minimum resistance value If you press SHORT SHIFT SLEW RATE while the short function is on the short icon disappears and the short function turns off The fundamental setting returns to the value that it was at before the short function was turned on See Be sure to use a dedicated driver circui...

Page 45: ...ary knob used to start and stop sequence execution SHORT SHIFT SLEW LATE p 58 From the menu select 1 Setup 1 Function Key Lock SET KEY Locking all the keys Locking all the keys disables all keys except for the LOCK SHIFT LOCAL key p 58 From the menu select 1 Setup 1 Function Key Lock ALL KEY Locking and unlocking the keys If you press LOCK SHIFT LOCAL when the key icon is not displayed the keys ar...

Page 46: ...Local Mode When the PLZ 4WH is in remote mode the remote icon appears on the display To use the front panel to switch the PLZ 4WH back to local mode press LOCAL Remote icon 0 0000A 0 00V 0 00W CC SLEWRATE 0 5000 A 132 00 mA µs SET H8 25A 650V ...

Page 47: ...Advanced Operations This chapter explains ABC preset memory setup memory protection functions and the menu 3 ...

Page 48: ...the memory entry on the screen and then turn on the load Differences between preset and setup memory Item Preset Memory Setup Memory Number of memory entries 3 100 Memory number A B or C 0 to 99 Memo Not allowed Allowed up to 15 characters Saved settings Fundamental settings current conductance voltage and power Operation mode Fundamental settings current conductance voltage and power Current and ...

Page 49: ...t you want to create a memory entry for set the range and values 2 Press ABC SHIFT ENTER The A B and C keys start blinking 3 Of A B and C press the key that you want to save the settings to The key that you press lights and the settings are saved to the key that you selected If you change the settings the key light turns off Operation Mode Fundamental Settings CC mode Current CR mode Conductance r...

Page 50: ...gs stored in the specified preset memory are displayed You can recall a different preset memory entry by pressing another preset memory key A B or C 3 Check the contents of the preset memory entry and press ENTER The selected key lights The settings that correspond to the selected memory entry are recalled and applied If you change the settings the key light turns off Memory recall method DIRECT 1...

Page 51: ...FT RECALL The STORE key blinks and the setup memory storage screen appears The last memory number that an entry has been saved to appears when the PLZ 4WH has just been shipped the number that appears is 0 3 Turn the rotary knob to select the memory number that you want to save to If you select a memory number that has already been saved to the previous settings are overwritten 4 To enter a memo p...

Page 52: ...y blinks and the setup memory recall screen appears The last memory number that an entry has been saved to appears when the PLZ 4WH has just been shipped the number that appears is 0 3 Turn the rotary knob to select the appropriate memory number If an entry has a memo the memo will appear beneath the entry s memory number 4 Press ENTER The RECALL key lights and the setup memory settings are recall...

Page 53: ...value overcurrent protection activation value or 110 of the maximum current range value Load off or limit1 1 If you choose to limit the current the current is limited so that the protection function activation value is not exceeded Current limiting stops after the alarm is released Overvoltage protection OVP 110 of the range s maximum voltage Load off Overpower protection OPP A specified power val...

Page 54: ...t the overcurrent protection activation value in CC mode 1 Make sure that the load is off If the LOAD LED is lit press LOAD to turn the load off 2 Press OPP OCP until OCP is highlighted on the display The OPP OCP key lights Pressing OPP OCP switches between OCP and OPP 3 Turn the rotary knob to set the overcurrent protection activation value Details about overpower protection OPP You can set the v...

Page 55: ... SHIFT OPP OCP The UVP key lights 2 Turn the rotary knob to set the undervoltage protection activation value If you set the value to OFF undervoltage protection is disabled Details about reverse connection protection REV When a reverse voltage is detected and the load is turned off turn off the DUT immediately p 27 If you are using the remote sensing function and the sensing wires are connected in...

Page 56: ...illation CC and CR mode response speeds There are four response speeds in CC mode and CR mode 1 1 This is the normal response speed the factory default setting 1 2 This is 1 2 the normal response speed twice as slow 1 5 This is 1 5 the normal response speed five times as slow 1 10 This is 1 10 the normal response speed 10 times as slow equivalent to the PLZ 3WH series The settings other than 1 1 r...

Page 57: ...er or not to display the elapsed time ON or OFF from the menu select 1 Setup 1 Function Count time Auto load off timer Cut Off Time In voltage measurement the voltage immediately before the load turns off is measured You can configure the PLZ 4WH to turn the load off after a specified amount of time has elapsed After the load turns off a popup window appears indicating the input voltage immediatel...

Page 58: ... menu screen item 2 appears 5 Repeat step 3 and step 4 to move to the setting that you want to set 6 Turn the rotary knob to set the setting Next set other conditions 7 After you have finished configuring the settings press MENU SHIFT SET VSET The menu screen will close and the settings that you configured will be applied 1 Setup 2 Configuration 4 Model Info PREV NEXT 3 Calibration Menu Menu scree...

Page 59: ...r3 3 This is enabled when a PLZ1004WH is being used as the master unit and Operation is set to Master on the 1 Master Slave screen 1 2 3 4 Number of boosters that are connected 2 Power On Load On OFF The load is off when the power is turned on ON The load is on when the power is turned on State of the load when the power switch is turned on Key Lock OFF Keys are not locked ON Keys are locked Key l...

Page 60: ... its settings to their factory defaults 1 Turn the POWER switch off 2 Make sure that nothing is connected to the DC INPUT terminals the load input terminals on the front panel 3 While holding down ENTER turn the POWER switch on Keep holding ENTER until the display lights up and SET CLR appears The PLZ 4WH will start up with the factory default settings PLZ164WH VERSION SET CLR SUB 1 00 MAIN 1 02 S...

Page 61: ...Sequences This chapter explains the sequence function Sequences 4 ...

Page 62: ...grams can be saved and the maximum number of steps that can be contained in all programs combined is 256 steps You can include commands to unpause the PLZ 4WH after it has been paused through the pressing of PAUSE or through an external trigger signal Fast sequences For fast sequences the execution time of each step is determined by the TIME BASE execution interval setting Each step has the same i...

Page 63: ...ct OFF Entering values You can increase or decrease the value of a numerical setting by turning the rotary knob If the value consists of many digits you can press or to move the cursor directly to the desired digit and increase or decrease only that digit For example if you want to set a value to 100 you can simply move the cursor to the hundreds digit and enter 1 using the rotary knob Entering ch...

Page 64: ... program is completed after the program s last step has been executed First configure the program settings and then configure the step settings p 68 The details of the method for configuring a normal sequence are explained in Sequence Example Normal Sequence Step 001 Step 002 Step 003 END Program Program Program The maximum total number of steps is 256 The maximum number of programs is 10 Step 001...

Page 65: ...ring the program settings press NEXT SHIFT to configure the step settings Item Setting Description No 1 to 10 Program number 11 is for the fast sequence Memo Up to 11 characters A memo Mode NCC CC mode NCR CR mode NCV CV mode NCP CP mode The program operation mode Range 8 25 A 650 V example The current and voltage ranges for the program vary depending on the model Loop 1 to 9998 9999 Infinite repe...

Page 66: ...h between screens by pressing NEXT SHIFT and PREV SHIFT Step value Set the fundamental setting current conductance voltage or power value Step execution time Set the time for which the step is executed 0 00 00 001 to 999 59 SEQ EDIT PREV NEXT CC SET A END TOTAL 000 SEQ EDIT PREV NEXT 6 0000A CC SET A END TOTAL 001 001 Press INS SHIFT Step Editing Screen Contents Step value The fundamental setting ...

Page 67: ...f the EXT CONT connector p 99 Deleting steps Press and to highlight the step that you want to delete and then press DEL SHIFT The highlighted step is deleted Item Setting Description LOAD ON Load on OFF Load off Turns the load on or off RAMP ON Slope OFF Step The ramp step transition TRIG ON Output OFF Don t output The trigger signal during step execution PAUSE ON Pause OFF Don t pause Whether or ...

Page 68: ...cond execution of program 2 is finished Step Setting Step Execution Time LOAD RAMP TRIG Step 1 6 A 200 s 3 min 20 s On On Off Step 2 6 A 150 s 2 min 30 s On Off Off Step 3 0 3 A 80 s 1 min 20 s Off Off On Step Setting Step Execution Time LOAD RAMP TRIG Step 1 8 1 A 200 s 3 min 20 s On On Off Step 2 3 A 50 s On Off Off Step 3 7 2 A 150 s 2 min 30 s On On Off 8 1 A 6 A 7 2 A 3 A Execution RUN 6 A 20...

Page 69: ...e the cursor to Range and set the current and voltage ranges 8 25 A and 650 V Turn the rotary knob to select 8 25 A 650 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 1 Turn the rotary knob to select the number 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select OFF In this example program ...

Page 70: ...p 2 6 Press NEXT SHIFT or ENTER The step execution time screen appears SEQ EDIT PREV NEXT CC SET A END TOTAL 000 SEQ EDIT PREV NEXT 6 0000A CC SET A END TOTAL 001 001 SEQ EDIT PREV NEXT 6 0000A CC SET A END TOTAL 002 002 001 6 0000A Memo You can move the cursor by pressing and Press PREV SHIFT to return to the previous screen 1 Press to move the cursor to step 001 At first the execution time is 0 ...

Page 71: ...he item that you want to set Turn the rotary knob to choose a setting Leave TRIG and PAUSE set to OFF 3 Press to move the cursor to step 002 For step 2 set LOAD to ON Leave RAMP TRIG and PAUSE set to OFF 4 Press to move the cursor to step 003 For step 3 set TRIG to ON Leave LOAD RAMP and PAUSE set to OFF All the settings for program 1 have been entered Next we will edit program 2 SEQ EDIT PREV 001...

Page 72: ... move the cursor to Range and set the current and voltage ranges to 8 25 A and 650 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 2 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select OFF 8 Press to move the cursor to Last Set and select the current that the load will supply after the seque...

Page 73: ...on patterns for steps 1 to 3 For step 1 set LOAD to ON RAMP to ON TRIG to OFF and PAUSE to OFF For step 2 set LOAD to ON RAMP to OFF TRIG to OFF and PAUSE to OFF For step 3 set LOAD to ON RAMP to ON TRIG to OFF and PAUSE to OFF All the settings for program 2 have been entered 4 Press PREV SHIFT four times to exit the sequence editing screen Each time you press PREV SHIFT the previous screen is dis...

Page 74: ...able units called steps When program 11 is executed its steps are executed in order starting with step 0001 A single execution of a program is completed after the program s last step has been executed First configure the program settings and then configure the step settings p 78 The details of the method for configuring a fast sequence are explained in Sequence Example Fast Sequence Step 0001 Step...

Page 75: ... finish configuring the program settings press NEXT SHIFT to configure the step settings Item Setting Description No 11 Program number 1 to 10 are for the normal sequences Memo Up to 11 characters A memo Mode FCC CC mode FCR CR mode The program operation mode Range 8 25A 650V example The current and voltage ranges for the program vary depending on the model Loop 1 to 9998 9999 Infinite repetition ...

Page 76: ...rsor moves between items in this order step number current trigger output setting and then magnification Each time you press the cursor moves between items in this order magnification trigger output setting current and then step number You can use the FILL function to set multiple steps at once Trigger output TRIG Use this setting to specify whether or not to produce a trigger signal If you set TR...

Page 77: ... cursor to DATA1 and use the rotary knob to set the current of the first step In the same way set DATA2 the current of the last step START the step number of the first step and STOP the step number of the last step After you have finished making the settings press ENTER to return to the monitor screen In the example in the figure below the same waveform is repeated twice First set the first step t...

Page 78: ... number 15 Step execution time 1 ms When you execute the sequence program 11 will be repeated three times point A to B point B to C point C to D After program 11 has been executed 3 times it will finish and the current will change to 0 3 A point E Step Setting Trigger Output Steps 1 to 5 6 A Off Step 6 3 A On Steps 7 to 10 6 A Off Step 11 3 A Off Steps 12 to 15 6 A Off 6A 3A Execution RUN 0 3A Tri...

Page 79: ... 8 25 A 65 V 6 Press to move the cursor to Loop and set the number of times to execute the program to 3 Turn the rotary knob to select the number 7 Press to move the cursor to Last Load and select the state that the load will be in after the sequence ends select ON Turn the rotary knob to select ON 8 Press to move the cursor to Last Set and select the current that the load will supply after the se...

Page 80: ...d turn the rotary knob to set the value to 6 A 4 Press to move the cursor to STEP 5 Set the currents for steps 2 through 5 to 6 A in the same way that you set step 1 6 Set the current for step 6 to 3 A 7 Press to move the cursor to the trigger output setting and turn the rotary knob to select T 8 Set the currents for steps 7 to 10 to 6 A 9 Set the current for step 11 to 3 A 10Set the currents for ...

Page 81: ... 11 4 Press RUN STOP SHIFT B to execute the selected sequence The sequence will be executed and the measured values will appear on the display When the sequence is completed a popup window appears on the screen 5 Press ENTER to exit the sequence execution screen If a step s PAUSE setting has been set to ON the sequence operation will pause after the step has been executed To resume operation press...

Page 82: ...rst turn off the load and then set the mode and range to match those of the sequence that you want to execute When the load is off if the current mode and range settings do not match those of the sequence that you are trying to execute the settings of the sequence are automatically changed to match the current settings Before Sequence Execution Sequence Execution Load on off state Mode and range s...

Page 83: ...External Control and Parallel Operation This chapter explains external control and Parallel Operation 5 ...

Page 84: ...and signals that indicate the status can be produced The EXT CONT connector is used for external control Analog Voltage Control CC CP CR and CV mode values Resistance Control CC CP CR and CV mode values Digital Control Turning the load on and off and monitoring its status Range control for each operation mode Unpausing during sequence operation Forced alarm generation Alarm clearing Signal Output ...

Page 85: ...minal of the external device to the terminal of the DUT the terminal that is connected to the negative input terminal of the PLZ 4WH Attach a commercially available ferrite core to the wiring between the PLZ 4WH and the external device DUT L L PLZ 4WH Series ACOM External control terminal External device Load input terminals Do not connect Attach a ferrite core Common terminal ...

Page 86: ...e recommended connectors are shown in the following table For information about how to use these tools and components see the OMRON Corporation or KEL Corporation catalogs When using a flat cable be sure to use a connector with a strain relief To press fit discrete wires or flat cables be sure to use a special tool For a description of applicable cables and tools see the catalog of the relevant co...

Page 87: ...ltage 6 A COM Connected to the negative load input terminal on the rear panel 7 LOAD ON OFF CONT The load is turned on by a low or high CMOS level signal The logic levels can be switched The internal circuit is pulled up to 5 V by a 10 kΩ resistor 8 RANGE CONT 1 Input for switching the range externally 1 The internal circuit is pulled up to 5 V by a 10 kΩ resistor Valid only when the front panel s...

Page 88: ...le external voltage that has low noise 1 Turn the POWER switch off 2 Connect the external voltage across pins 1 and 3 of the EXT CONT connector 3 Turn the POWER switch on and make sure that the load is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 58 5 From the menu select 2 Configuration 3 External Contr...

Page 89: ...r less when set to the minimum resistance 1 If you are performing proportional control set the resistance to the minimum value If you are performing inverse control set the resistance to the maximum value 2 Turn the POWER switch off 3 Connect the external variable resistor across pins 1 and 3 of the EXT CONT connector 4 Turn the POWER switch on and make sure that the load is off 5 Set the operatio...

Page 90: ... a highly stable external voltage that has low noise 1 Turn the POWER switch off 2 Connect the external voltage across pins 1 and 3 of the EXT CONT connector 3 Turn the POWER switch on and make sure that the load is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H See CAUTION To avoid damaging the PLZ 4WH obse...

Page 91: ...ce of 50 Ω or less when set to the minimum resistance 1 If you are performing proportional control set the resistance to the minimum value If you are performing inverse control set the resistance to the maximum value 2 Turn the POWER switch off 3 Connect the external variable resistor across pins 1 and 3 of the EXT CONT connector 4 Turn the POWER switch on and make sure that the load is off 5 Set ...

Page 92: ...voltage that has low noise 1 Turn the POWER switch off 2 Connect the external voltage across pins 1 and 3 of the EXT CONT connector 3 Turn the POWER switch on and make sure that the load is off 4 Set the operation mode and the current range If you also want to control the current range externally be sure to set the range to H p 58 5 From the menu select 2 Configuration 3 External Control V See CAU...

Page 93: ...o the minimum resistance 1 If you are performing proportional control set the resistance to the minimum value If you are performing inverse control set the resistance to the maximum value 2 Turn the POWER switch off 3 Connect the external variable resistor across pins 1 and 3 of the EXT CONT connector 4 Turn the POWER switch on and make sure that the load is off 5 Set the operation mode and the cu...

Page 94: ...nal voltage of 10 V results in a voltage of 100 of the specified range Use a highly stable external voltage that has low noise 1 Turn the POWER switch off See CAUTION To avoid damaging the PLZ 4WH observe the following precautions The maximum voltage that can be applied across pins 1 and 3 and across pins 5 and 6 of the EXT CONT connector is 11 V Do not apply a voltage that exceeds this value Pins...

Page 95: ...rol the current range externally be sure to set the range to H p 58 5 If you have connected the external voltage across pins 1 and 3 of the EXT CONT connector from the menu select 2 Configuration 3 External Control V If you have connected the external voltage across pins 5 and 6 of the EXT CONT connector from the menu select 2 Configuration 3 External Control CV ON Doing so enables the external co...

Page 96: ...mum value If you are performing inverse control set the resistance to the maximum value 2 Turn the POWER switch off 3 Connect the external variable resistor across pins 1 and 3 of the EXT CONT connector 4 Turn the POWER switch on and make sure that the load is off 5 Set the operation mode and the current If you also want to control the current range externally be sure to set the range to H 6 From ...

Page 97: ... CP variable resistors the lower row 1 Turn the load on 2 Set the external voltage to 0 V 3 Turn OFS until the measured current on the display is 0 A 4 Set the external voltage to 10 V 5 Turn FSC until the measured current on the display is 100 of the selected range 6 Turn the load off This completes the adjustment procedure Making sure that the input current changes proportionally to external res...

Page 98: ...pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 kΩ The maximum allowable voltage is 5 V The logic threshold levels are CMOS Load on status signal output To monitor the status on or off of the load externally monitor the output signal across pins 137 and 17 of the EXT CONT connector See On Off H On L Off indicates that the LOAD key has been pressed The LOAD has ...

Page 99: ... allowable voltage of 5 V and a pulse width of 10 µs or more across pins 11 and 12 of the EXT CONT connector The trigger signal is output on the rising edge of the pulse signal applied to the trigger input terminal The input terminals are pulled down to the internal circuit s A COM level by a resistor that is approximately 100 kΩ The maximum allowable voltage is 5 V The logic threshold levels are ...

Page 100: ...mmon The signal is 2 bit The control terminals are pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 kΩ The maximum allowable voltage is 5 V The logic threshold levels are CMOS Range status output Use pins 14 RANGE STATUS 1 and 15 RANGE STATUS 0 of the EXT CONT connector pin 17 is common The signal is 2 bit Current Range Control Input1 Status Output2 PLZ 164WH PL...

Page 101: ... The alarm input terminals are pulled up to the internal circuit s 5 V level by a resistor that is approximately 10 kΩ The maximum allowable voltage is 5 V The logic threshold levels are CMOS Alarm status output To monitor the alarm status externally monitor the output signal across pins 16 and 17 of the EXT CONT connector The signal is on when a protection function OVP OCP OPP OHP REV or UVP is a...

Page 102: ...ont panel and across pins 2 and 3 pin 8 is common of the EXT CONT connector I MON OUT connector BNC on the PLZ 4WH front panel The common is connected to the chassis electric potential It is isolated from A COM For current ranges H and L 1 V corresponds to the full scale current for current range M 0 1 V corresponds to the full scale current The maximum output current is 5 mA Across pins 2 and 3 o...

Page 103: ...the 650 V and 65 V ranges 6 5 V corresponds to the full scale voltage The maximum output current is 5 mA Across pins 4 and 6 of the EXT CONT connector The common is connected to A COM For the 650 V and 65 V ranges 10 V corresponds to the full scale voltage The output impedance is 1 kΩ CAUTION To avoid damaging the product observe the following precaution Pin 6 of the EXT CONT connector is connecte...

Page 104: ...sters PLZ2004WHB in parallel You can connect up to 4 boosters For details on how to connect and configure units for parallel operation using boosters see the PLZ2004WHB operation manual Boosters PLZ2004WHB can only be connected to the PLZ1004WH p 120 During parallel operation the product may not meet the specifications that it has during independent operation You can improve the accuracy of settin...

Page 105: ...r away from the flat cables as possible See WARNING Improper use of load wires may lead to fire Use load wiring with a diameter that is appropriate for the amount of current being used and with sturdy incombustible or flame resistant insulation CAUTION To avoid damaging the product observe the following precautions When you are performing parallel operation be sure to use the load input terminal o...

Page 106: ...letes the connection procedure for parallel operation using the same type of electronic loads Next configure the settings on the master and slave units 5 Turn all the electronic loads on 6 On the master unit from the menu select 2 Configuration 1 Master Slave Operation MASTER 7 On the master unit from the menu select 2 Configuration 1 Master Slave Parallel and then specify the total number of unit...

Page 107: ...llations occur due to instability of the product caused by current phase lag reduce the response speed to ensure stable operation Turning the power on and off Turning the power on 1 Turn the POWER switches of all slave units on 2 Turn the master unit s POWER switch on Turning the power off There is no set order for turning the power off Turn all the electronic loads off Alarms during parallel oper...

Page 108: ...dependent operation from the menu select 2 Configuration 1 Master Slave Operation MASTER and then restart the unit To return a master unit that was connected to boosters to independent operation from the menu select 2 Configuration 1 Master Slave Booster and then restart the unit CAUTION To avoid damaging the product observe the following precautions Do not operate the PLZ 4WH alone with the flat ...

Page 109: ...Remote Control This chapter provides a general explanation of the remote control function For details on commands see the Communication Interface Manual on the supplied CD ROM Remote Control 6 ...

Page 110: ...e power switch off and then on again to enable the setting Details are also contained in the Communication Interface Manual in the accompanying CD ROM RS232C When the PLZ 4WH is shipped from the factory the RS232C connector has a cover Keep the cover so that you can attach it to the RS232C connector when the connector is not in use For safety always attach the cover to the RS232C connector when th...

Page 111: ...arily If the start window does not appear open the CD ROM in Windows Explorer and then double click index html to display the start window Application software PLZ applications and samples The VISA library is necessary for the use of these applications Driver KI VISA x x x User s manual User s Manual PDF Communication Interface Manual HTML ...

Page 112: ...or later for Windows 2000 and Windows XP Agilent VISA by Agilent Technologies Agilent IO Libraries M01 00 or later KI VISA Ver 3 0 0 or later Installing KI VISA KI VISA is Kikusui s original VISA library that supports VXIplug play VISA Specifications 4 0 You can download the most recent version of this library from the Kikusui Electronics Corporation website http www kikusui co jp en download KI V...

Page 113: ... program of the CD ROM or Explorer 3 Double click PlzAppsSetup_x_x_x exe The numbers that appear instead of the x s vary depending on the application revision number 4 Proceed with the installation according to the instructions on the screen For details see Readme_e htm in the application folder VPanel A simple virtual panel Monitor And Log Measures and logs current voltage and power Step Editor A...

Page 114: ...ion Interface Manual is provided in HTML format The HTML manual can be viewed using the following browsers Operating environment Windows 98 or later Browser Microsoft Internet Explorer 5 5 or later The list of messages in the Communication Interface Manual is provided in PDF format You can view it using Adobe Reader 6 0 or later ...

Page 115: ...Maintenance This chapter describes the maintenance procedures including cleaning inspection and calibration 7 ...

Page 116: ...hat are attached to the dust filter If the filter is extremely dirty clean it using a water diluted neutral detergent and dry it completely 4 Attach the dust filter to the louver Firmly attach the dust filter so that the louver s tabs protrude out of the top of the dust filter 5 Attach the louver so that its tabs enter the slots in the panel While pushing on the second slat from the bottom of the ...

Page 117: ...l inspection and cleaning To have the PLZ 4WH overhauled please contact a Kikusui distributor or agent Backup battery replacement The PLZ 4WH has a battery inside The battery s service life differs depending on the environment that the PLZ 4WH is used in but three years after it is purchased is a rough estimate for the battery s service life If the panel settings are not retained after the power s...

Page 118: ...nt and voltage values are determined by the calibrated straight line Calibrated items The following eight items are calibrated for the three voltage ranges and the two current ranges 1 The offset value of the internal reference voltage for current settings 2 The gain value of the internal reference voltage for current settings 3 The offset value of the internal reference voltage for voltage settin...

Page 119: ...he equipment as shown below Select an appropriate shunt resistor according to type of calibration that you are performing 1 CC Low 2 CC Mid 4 CV 65V 5 CV 650V PREV NEXT 3 CC High Calibration Calibration number Name Required Accuracy Required Rating PLZ164WH PLZ334WH PLZ1004WH DC voltmeter Within 0 02 Measurement voltage range 0 V to 700 V Shunt resistor1 1 In place of a shunt resistor you can use ...

Page 120: ...D High 10 Step A Step A Step B 100 Step C Step C Step D Calibration Number and Item Output Setting of the Power Supply Current to Be Matched PLZ164WH PLZ334WH PLZ1004WH 1 CC Low Offset Voltage 3 3 V Current Rated current of the load device 8 25 mA 8 25 µA 16 5 mA 16 5 µA 50 mA 50 µA Gain 82 5 mA 82 5 µA 165 mA 165 µA 0 5 A 0 5 mA 2 CC Mid Offset 82 5 mA 82 5 µA 165 mA 165 µA 0 5 A 0 5 mA Gain 825 ...

Page 121: ...ing to 10 of the full scale value see the table of CC mode settings 10 Press ENTER The load turns off automatically Step C Calibrate the gain values of the internal reference voltage for current settings and of the measured values 11Connect a shunt resistor that matches the value corresponding to 100 of the maximum low range value 12Press ENTER The load turns on automatically and the gain calibrat...

Page 122: ...n the Low range and then on the High range For each item start calibration at step E The shunt resistor will not be used but you can leave it connected CV mode settings The current settings for each model are listed below Calibrating the low range Monitor the input voltage using an external voltmeter Voltage Range Percentage of the Full Scale Calibrated Items Internal Reference Voltage for Voltage...

Page 123: ... appears 6 Press or to set the cursor position of DAC LIM and then turn the rotary knob so that the input voltage is within 0 05 of the value corresponding to 10 of the full scale value see the table of CV mode settings 7 Press ENTER The load turns off automatically Step G Calibrate the gain values of the internal reference voltage for voltage settings and of the measured values 8 Press ENTER The ...

Page 124: ...ou calibrated the Low range In step 4 select 5 CV 650 V Set the voltage of the power supply to 660 V or more The calibration of CV mode is complete after you calibrate the High range Ending Calibration 1 Press PREV SHIFT The screen that was displayed before the calibration screen appears 2 Press MENU SHIFT SET VSET The screen that was displayed before the menu appears When you press ENTER or NEXT ...

Page 125: ...the power cord plug from the outlet Immediately stop the use of the instrument and request repairs Check Item Possible Cause Remedy Location and Status of the Object Check Result Is rated voltage applied for the input power supply AC No Low supply voltage Use the PLZ 4WH in the input supply voltage range Yes Bad contrast adjustment Adjust the contrast See Turning the Power On on page 17 Check Item...

Page 126: ...ting is small Reset the OCP value in the setup screen See Protection Functions on page 53 Is OPP tripped Yes The OPP setting is small Reset the OPP value in the setup screen See Protection Functions on page 53 Check Item Possible Cause Remedy Location and Status of the Object Check Result A sequence is in operation Yes Wait for the sequence operation to finish Abort the sequence by pressing STOP N...

Page 127: ...8 Specifications This chapter contains the specifications and gives the dimensions of the PLZ 4WH ...

Page 128: ...000 W Input resistance when the load is off Approx 2 21 MΩ2 2 Approx 2 21 the number of units MΩ during parallel operation of units of the same model Model PLZ164WH PLZ334WH PLZ1004WH Operating range H range 0 A to 8 25 A 0 A to 16 5 A 0 A to 50 A M range 0 A to 825 mA 0 A to 1 65 A 0 A to 5 A L range 0 A to 82 5 mA 0 A to 165 mA 0 A to 500 mA Setting range H range 0 A to 8 6625 A 0 A to 17 325 A ...

Page 129: ...EN 105 mS to 0 S 9 523 Ω to OPEN Resolution H range 30 µS 60 µS 200 µS M rangete 3 µS 6 µS 20 µS L range 0 3 µS 0 6 µS 2 µS Accuracy of setting2 2 Converted value based on the input current at the sensing point H range M range 0 5 of set3 0 5 of f s4 3 set Vin Rset 4 The full scale of the range However for the M range it is the full scale of the H range L range 0 5 of set3 0 5 of f s Vin5 2 21 MΩ ...

Page 130: ... terminals on the rear panel or sensing terminals Parallel Operation TYP 5 of f s Vin2 2 21 MΩ at 23 C 5 C Voltmeter Model PLZ164WH PLZ334WH PLZ1004WH Display H range 0 00 V to 650 00 V L range 0 000 V to 65 000 V Accuracy 0 1 of rdng 0 1 of f s Parallel Operation TYP Ammeter Model PLZ164WH PLZ334WH PLZ1004WH Display H range M range 0 0000 A to 8 2500 A 0 000 A to 16 500 A 0 00 A to 50 000 A L ran...

Page 131: ...dicated in parentheses H range 50 µA µs 13 2 mA µs to 132 mA µs 100 µA µs 26 4 mA µs to 264 mA µs 300 µA µs 0 08 A µs to 0 8 A µs 5 µA µs 1 32 mA µs to 13 2 mA µs 10 µA µs 2 64 mA µs to 26 4 mA µs 30 µA µs 8 mA µs to 80 mA µs 0 5 µA µs 0 132 mA µs to 1 32 mA µs 1 µA µs 0 264 mA µs to 2 64 mA µs 3 µA µs 0 8 mA µs to 8 mA µs M range 5 µA µs 1 32 mA µs to 13 2 mA µs 10 µA µs 2 64 mA µs to 26 4 mA µs ...

Page 132: ...Turns off the load when 110 of the range s maximum voltage is detected Overcurrent protection OCP Can be set to 110 of each range s maximum current or the values given below 0 01 A to 9 07 A 0 01 A to 18 15 A 0 01 A to 55 A The action can be set to load off or limit Overpower protection OPP Can be set to 110 of each range s maximum power or 0 1 to 110 of the rated power The action can be set to lo...

Page 133: ... h to 10 h 10 s for 10 h to 100 h 1 min for 100 h to 999 h 59 min Fast sequence Operation modes CC and CR Maximum number of steps 1024 Step execution time 100 µs to 100 ms Time resolution 100 µs Model PLZ164WH PLZ334WH PLZ1004WH Elapsed time display Measures the time from load on to load off Can be turned on and off Measures from 1 s up to 999 h 59 min 59 s Auto load off timer Automatically turns ...

Page 134: ... CP and CV mode External resistances in the range of 0 Ω to 10 kΩ correspond to 0 to 100 or 100 to 0 of the rated current CC mode rated power CP mode or rated voltage CV mode External resistances in the range of 0 Ω to 10 kΩ correspond to the range of resistances from the maximum resistance to the minimum resistance or from the minimum resistance to the maximum resistance CR mode Current monitor o...

Page 135: ... abnormalities at 1000 Vdc for 1 minute Dimensions mm See the outline drawing Weight Approx 7 kg 15 4 lb Approx 8 kg 17 6 lb Approx 16 kg 35 3 lb Battery backup Backs up setup information Accessories Power cord 1 pc with plug length 2 4 m Load input terminal cover 1 pc Lockplate for the load input terminal cover 2 sets Set of screws for the load input terminal 2 sets CD R3 3 Contains applications ...

Page 136: ...07 160 6 30 70 2 76 275 10 83 55 2 16 35 25 1 385 35 25 1 385 144 5 67 4 φ30 1 18 Rubber foot diameter 4 φ5 0 20 Four holes for attaching the rubber feet Maximum depth that screws can be inserted is 5 mm 0 20 inches 73 2 87 275 10 83 52 2 05 MAX 470 18 50 MAX30 1 18 23 0 91 400 15 75 367 14 45 MAX 455 17 91 429 5 16 91 MAX 10 0 39 Eight M4 screw holes total on both sides of the PLZ 4WH The maximum...

Page 137: ...Appendix A Operating Area B Sequence Program Creation Table C Options ...

Page 138: ...ed If the input voltage exceeds the minimum operating voltage and a current greater than or equal to 1 of the range rating greater than or equal to 1 of the H range when the PLZ 4WH is set using the M range starts flowing the current can keep flowing even when the voltage is reduced down For the operating areas of each model see Operating areas of each model Basic operation modes The following six...

Page 139: ...power protection OPP is activated At this point one of two types of operations occurs depending on the protection action setting for OPP If the protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant power load at point B Even if you attempt to increase the input current the current will not increase beyond point B If ...

Page 140: ...that the PLZ 4WH is being used in constant resistance CR mode to test the load characteristic of a constant voltage power supply If the overcurrent protection OCP setting IOCP is greater than the current value IB at point B when the PLZ 4WH resistance is decreased R1 R2 RB so that the input current load current increases with the voltage of the constant voltage power supply at V1 the operating poi...

Page 141: ...e protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant current load at point F Even if you attempt to decrease the resistance to increase the current the current will not increase beyond point F If you increase the resistance to decrease the input current overcurrent protection OCP is cleared The PLZ 4WH returns to ...

Page 142: ...creasing the input current load current the operating point moves along segment AB A1 A2 B When point B is reached overcurrent protection OCP is activated At this point one of two types of operations occurs depending on the protection action setting for OCP If the protection action is set to LOAD OFF the load turns off If the protection action is set to LIMIT the PLZ 4W sinks current as a constant...

Page 143: ... increasing the input current load current the operating point moves along segment GH Point G is the maximum power in the range being used Point B LOAD OFF The load is turned off no current flows The PLZ 4WH stops operating as a load LIMIT The PLZ 4WH switches out of constant power CP mode Overcurrent protection OCP continues and the PLZ 4WH operates as a constant current load ...

Page 144: ... flow if the PLZ 4WH voltage VM0 is greater than VM If the voltage of the PLZ 4WH is decreased so that VM0 is less than VM current starts flowing If the voltage is decreased further VM1 VM2 VN so that the input current load current increases the operating point moves along segment MN M1 M2 N When point N is reached overpower protection OPP is activated At this point one of two types of operations ...

Page 145: ...LIMIT the PLZ 4WH sinks current as a constant current load at point L Even if you attempt to decrease the voltage the current will not increase beyond point L If you increase the voltage overcurrent protection OCP is cleared The PLZ 4WH returns to constant voltage CV mode and the operating point moves along segment ML Point N LOAD OFF The load is turned off no current flows The PLZ 4WH stops opera...

Page 146: ...V mode the PLZ 4WH may operate unstably if R1 is low Transition of the operating point overpower protection OPP In this example we will assume that the discharge characteristic of a battery is being measured The battery voltage is VM In constant current CC mode if the current is increased IM1 IM2 IN so that the input current load current increases the operating point moves along segment MN M1 M2 N...

Page 147: ... setting is PN1 because overpower protection OPP is not activated as the current is increased the operating point reaches point S At point S the PLZ 4WH switches to constant voltage CV mode The voltage is fixed at the user specified voltage VQ The operating point moves along segment QS The current is determined by the voltage and internal resistance of the battery Point N LOAD OFF The load is turn...

Page 148: ...istic of a battery is being measured When the overcurrent protection OCP setting IOCP is greater than current IN at point N the voltage of the battery is VM In constant resistance CR mode if the resistance is reduced RM1 RM2 RN so that the input current load current increases the operating point moves along segment MN M1 M2 N When the overpower protection OPP setting is PN OPP is activated when po...

Page 149: ...nt load at point T Even if you attempt to decrease the resistance to increase the current the current will not increase beyond point T If you increase the resistance to decrease the current overcurrent protection OCP is cleared The PLZ 4WH returns to constant resistance CR mode and the operating point moves along segment MT If the overcurrent protection OCP setting is IOCP1 because overcurrent pro...

Page 150: ...1 0 0 5 5 0 01 0 2 0 1 0 0 5 1 10 0 825 0 825 1 Input voltage V Input voltage V Input current A Input current A Actual operating area Actual operating area Operating area where specifications are guaranteed Operating area where specifications are guaranteed Low voltage area 165 W CP m ode M range 16 5 W 650 100 10 5 1 0 5 0 1 0 0 5 5 0 001 0 002 0 01 0 0 05 0 1 1 0 0825 0 8025 0 1 Input voltage V ...

Page 151: ...5 0 01 0 51 0 1 0 1 2 10 1 65 1 65 1 Input voltage V Input voltage V Input current A Input current A Actual operating area Actual operating area Operating area where specifications are guaranteed Operating area where specifications are guaranteed Low voltage area 330 W CP m ode M range 33 W 650 100 10 5 1 0 5 0 1 0 0 5 5 0 001 0 005 0 01 0 0 1 0 2 1 0 165 0 165 0 1 Input voltage V Input voltage V ...

Page 152: ... 5 0 01 1 54 0 1 0 3 6 10 5 5 1 Input voltage V Input voltage V Input current A Input current A Actual operating area Actual operating area Operating area where specifications are guaranteed Operating area where specifications are guaranteed Low voltage area 1 kW CP m ode M range 100 W 650 100 10 5 1 0 5 0 1 0 0 5 5 0 001 0 015 0 01 0 0 3 0 5 1 0 5 0 5 0 1 Input voltage V Input voltage V Input cur...

Page 153: ...am number 1 to 10 Memo Up to 11 characters Operation mode CC CR CV CP Range Current A Voltage V A V Loop 1 to 9999 Last Load OFF ON OFF ON Last Set Chain OFF 1 to 10 Step number Setting mA mS V W Execution time h min s ms LOAD RAMP TRIG PAUSE Note 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...

Page 154: ...tion time h min s ms LOAD RAMP TRIG PAUSE Note 1 6 A 200 s ON ON OFF OFF 2 6 A 150 s ON OFF OFF OFF 3 0 3 A 80 s OFF OFF OFF OFF Program name Example sequence of chapter 4 PLZ164WH Date By Program number 1 to 10 2 Memo Up to 11 characters Program2 Operation mode CC Range Current A Voltage V 8 25 A 650 V Loop 1 to 9999 0002 Last Load OFF ON OFF Last Set 0 Chain OFF 1 to 10 OFF Step number Setting m...

Page 155: ... Rack mount brackets Unit mm inches Name Model Appropriate Model Explanation Rack mount frame KRA3 PLZ164WH PLZ334WH For an EIA inch rack KRA150 For a JIS millimeter rack Rack mount brackets KRB3 TOS PLZ1004WH For an EIA inch rack KRB150 TOS For a JIS millimeter rack 465 18 31 482 18 98 260 10 24 460 18 11 480 18 90 260 10 24 KRA3 KRA150 132 5 5 22 57 2 24 37 75 1 49 149 5 87 100 3 94 24 5 0 965 4...

Page 156: ...ion This flat cable is used to connect signal wires for parallel operation It comes in two lengths Socket 1 pc Pins 20 pcs Protection cover 1 set Model Length Explanation PC01 PLZ 4W 300 mm For use when you aren t using boosters PLZ2004WHB or when you are connecting boosters to each other PC02 PLZ 4W 550 mm For use when you are connecting a PLZ 4WH series unit to boosters PLZ2004WHB ...

Page 157: ... F fast sequence 62 74 feet removal 15 FILL function 77 fine adjustment 30 front panel BNC terminal 134 fundamental setting entry condition 17 G gain value 118 H handle removing 15 I initial drift 119 inrush current 135 INS key 11 J J1 connector 86 K key icon 45 keylock function 45 L Last Load 65 75 Last Set 65 75 LOAD 67 load on and load off 31 LOCAL key 11 lock function 45 LOCK key 11 Loop 65 75...

Page 158: ...nction 44 short icon 44 slew rate 42 soft start 43 step 64 74 storage humidity range 135 storage temperature range 135 STORE key 11 switching function 40 T TIME BASE 75 time measurement 57 TRIG 67 trigger signal output 102 U undervoltage protection 55 UVP 55 V version 2 version checking 18 VISA drivers 112 voltage measurement 57 W warm up 119 weight 135 ...

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