Kikusui PLZ-5WH2 Series User Manual
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Kikusui PLZ-5WH2 Series User Manual

Electronic load
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User's Manual
Electronic Load
PLZ-5WH2 Series
PLZ1005WH2
PLZ2005WH2
PLZ4005WH2
PLZ12005WH2
PLZ20005WH2
Part No. IB034623
Dec 2019
Contents 6
Component Names 10
Preparation 16
Basic Functions 25
Advanced Functions 65
Sequence Function 89
External Control 108
Parallel Operation 121
System Settings 126
Maintenance 144
Specifications 145
Appendix 160

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Summary of Contents for Kikusui PLZ-5WH2 Series

  • Page 1 Part No. IB034623 Dec 2019 User’s Manual Contents 6 Component Names 10 Electronic Load PLZ-5WH2 Series Preparation 16 PLZ1005WH2 Basic Functions 25 PLZ2005WH2 Advanced Functions 65 PLZ4005WH2 PLZ12005WH2 Sequence Function 89 PLZ20005WH2 External Control 108 Parallel Operation 121 System Settings 126...

  • Page 2: About Operation Manual

    PDF files are included in the accompanying CD-ROM. You can view the PDF files using Adobe Reader. You can download the most recent version of these manu- als from the Kikusui Electronics Corporation website. Firmware versions that this manual covers This manual applies to products with firmware versions 2.1X.

  • Page 3: Accessories

    PLZ12005WH2, PLZ20005WH2 Accessories Top [Q1-500-158] [M1-100-134] Common to all models [M5-101-009] The attached power cord varies depending on the shipment destination. [M4-100-009] [M5-100-009] Bottom [Q1-500-159] Rear-panel DC INPUT Screw set for rear-panel terminals DC INPUT terminals Cover (1 set) (2 sets) Plug: NEMA5-15 Plug: CEE7/7 Plug: GB1002...

  • Page 4: Product Overview

    The most recent measurements (current, voltage, power, elapsed time, integrated current, integrated power) are shown on the display. Further, measure- The PLZ-5WH2 Series Electronic Load is a multifunctional ments can be stored in internal memory. system designed to offer the highest levels of reliability Standard RS232C, USB, and LAN communication and safety.

  • Page 5: Safety Precautions

    Safety Precautions Notes on Usage When using this product, be sure to observe the precau- • When installing this product, be sure to observe the tem- tions in the Safety Information manual. Items specific to perature and humidity ranges indicated below. this product are given below.

  • Page 6: Table Of Contents

    Contents About Operation Manual........2 Timing of trigger signal output.......44 Open Source Software ........2 Sine Function ...........45 Setting the amplitude ..........45 Accessories ............3 Setting the frequency ..........46 Product Overview ..........4 Turning the sine function on/off......47 Notations Used in This Manual......4 Trigger signal timing..........47 Safety Precautions ..........
  • Page 7 Recalling the setup memory ......... 81 Constant voltage (CV) control ......113 Sharing the setup memory with the PLZ-5W..81 Controlling the current to be superimposed on the constant current (CC) ......... 114 Synchronized Operation ........82 Controlling Load On/Off ......... 115 Connection for synchronized operation ....
  • Page 8 Maintenance Operating Range during Parallel Operation ...179 Options ............181 Parallel operation signal cable kit .......181 Inspection ............144 Low inductance cable .........181 Overhaul..............144 High-voltage load cable ........181 Backup battery replacement .......144 GPIB converter (PIA5100) ........182 Calibration ............144 Rack mount bracket ..........183 Troubleshooting..........186 Specifications Index...............188...
  • Page 9 This page is intentionally blank. User’s Manual PLZ-5WH2...

  • Page 10: Component Names

    Component Names Front panel PLZ1005WH2, PLZ2005WH2, PLZ4005WH2 (PLZ1005WH2 example) CLEAR ESCAPE ENTER LOCAL KEY LOCK LOAD SOURCE MEASURE SEQUENCE SYSTEM I MON V MON TRIG DC INPUT POWER 8 9 10 PLZ12005WH2, PLZ20005WH2 (PLZ12005WH2 example) CLEAR ESCAPE ENTER LOCAL KEY LOCK LOAD SOURCE MEASURE...
  • Page 11 Name Description Air inlet Air inlet for cooling. – Protection plate This plate protects the front-panel DC INPUT terminals. The PLZ1005WH2, p. 22 PLZ2005WH2, or PLZ4005WH2 and the DUT can be connected by removing the protection plate and attaching the front-panel DC INPUT terminal cover. When not using the front-panel DC INPUT terminals, be sure to attach the protection plate.
  • Page 12 Controls Name Function Display Displays the settings, measured values, and other information. p. 13 Function keys Each function key executes the item that is displayed above that key (function p. 26 area). Sub-function keys Each sub-function key executes the item that is displayed to the left of that p.
  • Page 13 Display Name Function Selected operation mode. Displays the selected operation mode. p. 31 Current range Displays the current range (1 range). – Changes to pink color when L range of CR mode is specified. Voltage range Displays the voltage range (1 range). –...
  • Page 14 Rear panel PLZ1005WH2, PLZ2005WH2, PLZ4005WH2 (PLZ1005WH2 example) SENSING L AN RS232C EXT SYNC PARALLEL DC OUT 5V EXT CONT DC INPUT AC INPUT PLZ12005WH2, PLZ20005WH2 (PLZ12005WH2 example) SENSING RS232C EXT SYNC PARALLEL EXT CONT DC OUT DC INPUT AC INPUT User’s Manual PLZ-5WH2...
  • Page 15 Name Function USB port (device) These are used for remote control. LAN port Interface RS232C port Manual DC OUT connector This connector is used during GPIB converter (option) use. p. 182 EXT SYNC connector This connector is used for synchronized operation. A cover for the pins is p.

  • Page 16: Preparation

    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 cord that is 3 m or less in length. If obtaining a power cord is difficult, contact your Kikusui agent or distributor.

  • Page 17: Checking Whether The Power Is On Or Off

    Preparation Checking Whether the Power Is On or Off Turning the power on ELECTRONIC LOAD 0.0-00V PLZ-5W 0-000A 000W CLEAR ESCAPE ENTER POWER switch LOCAL KEY LOCK LOAD SOURCE MEASURE SEQUENCE SYSTEM I MON V MON TRIG POWER Check that the power cord is connected properly. Check that nothing is connected to the DC INPUT terminals.

  • Page 18: Turning The Power Off

    Preparation | Checking Whether the Power Is On or Off Turning the power off Turn the POWER switch off ( ). If you want to turn the POWER switch back on, wait at least 5 seconds after the fan CAUTION stops.

  • Page 19: Connecting To The Dut

    Preparation Connecting to the DUT Connect the DUT to the DC INPUT terminal. The PLZ1005WH2, PLZ2005WH2, and PLZ4005WH2 have DC INPUT terminals on both the real panel and front panel. The specifications of the product are for the rear-panel DC INPUT terminals. For information on selecting load cables, refer to “Selecting the Load Cables”...

  • Page 20: When Connecting To The Rear-Panel Dc Input Terminals

    Preparation | Connecting to the DUT When connecting to the rear-panel DC INPUT terminals Connect the DUT to the rear-panel DC INPUT terminals. Risk of electric shock. WARNING • Be sure to attach the included cover for the rear-panel DC INPUT terminals. •...
  • Page 21 Preparation | Connecting to the DUT Align the bottom half of the included rear-panel DC INPUT terminal cover to the cables connected to the rear-panel DC INPUT terminals. PLZ12005WH2 example Align the top half of the cover to the bottom half. Align the tabs of the cover according to the load cable diameter.

  • Page 22: When Connecting To The Front-Panel Dc Input Terminals

    Preparation | Connecting to the DUT When connecting to the front-panel DC INPUT terminals The PLZ1005WH2, PLZ2005WH2, and PLZ4005WH2 have DC INPUT terminals also on the front panel. The front-panel DC INPUT terminals enable you to easily connect the product and DUT. The specifications of the product are for the rear-panel DC INPUT terminals.
  • Page 23 Preparation | Connecting to the DUT Connect the load cables to the front-panel DC INPUT terminals using the screws for the front-panel DC INPUT terminals. The tightening torque is 2.61 N·m. Attach the front-panel DC INPUT terminal cover. Connect the load cables to the output terminals of the DUT. Connect the positive (+) polarity of the front-panel DC INPUT terminals to the positive (+) polarity of the DUT, and the negative (-) polarity of the front-panel DC INPUT terminals to the negative (-) polarity of the DUT.

  • Page 24: Notes Regarding Dc Input Terminals

    Preparation | Connecting to the DUT Notes regarding DC INPUT terminals Do not apply overvoltage to the DC INPUT terminals Risk of damage. Do not apply a voltage that exceeds 1 000 Vdc to the DC INPUT termi- CAUTION nals. PLZ-5WH2 If a voltage exceeding 1 100 V is applied to the DC INPUT terminals, a beeping sound is generated and an OVP alarm (overvoltage detection)

  • Page 25: Basic Functions

    Basic Functions Panel Operations This chapter explains the front panel operations in general. Switching the display There are two display modes: function display and main display. The function display shows functions that can be executed on each screen. The main display shows measured values with large numbers. Pressing a menu key shows the function display of the corresponding menu screen.

  • Page 26: Using The Function Keys

    Basic Functions | Panel Operations Using the function keys On the function display 25), the available functions are shown in the function area and sub-function area.You can execute or select the functions by pressing the corresponding function key or sub-function key.

  • Page 27: Identification Using Color Markers

    Basic Functions | Panel Operations Operation example (Selection of constant resistance mode) Press SOURCE > Mode > CR. In the above step example, press the buttons in the following order. Mode Mode LOAD SOURCE SOURCE Identification using color markers Menu identification Color markers corresponding to the colors of menu keys are shown at the bottom edge of the function area and at the right edge of the sub-function area.

  • Page 28: Inputting Numbers And Characters

    Basic Functions | Panel Operations Inputting numbers and characters You can enter numbers and characters in input areas from the front panel or external keyboard. Numeric input and character input switch automatically according to the input area. If numbers or characters are selected in an input area, they can be changed. If only a cursor is shown in an input area, you can enter characters or numbers at the cursor position.

  • Page 29: Changing Values

    Basic Functions | Panel Operations Changing values To change a selected value (e.g., load value), use the numeric keypad or rotary knob. If you enter a value with the numeric keypad, following input, press the ENTER key to confirm the value. Use the numeric keypad or the rotary knob to change the value.

  • Page 30: Load On/Off

    Basic Functions Load On/Off The phrase “load on” refers to a condition in which a current is running through the product. “Turning the load on” refers to the operation of running a current through the product. Conversely, “load off” refers to a condition in which a current is not running through the product. “Turning the load off”...

  • Page 31: Setting The Operation Mode

    Basic Functions Setting the Operation Mode The product has the following five operation modes. Mode switching can be done only while the load is off. Constant current (CC) mode When a current value is specified, the current is kept at that value even when the voltage changes.

  • Page 32: Setting The Current In Cc Mode

    Basic Functions | Setting the Operation Mode Setting the current in CC mode In CC mode, the current is kept constant even when the voltage changes. For details, see “Operation of the constant current (CC) mode” 167). Set the operation mode to CC mode 31).

  • Page 33: Setting The Conductance In Cr Mode

    Basic Functions | Setting the Operation Mode Setting the conductance in CR mode In CR mode, the product sinks current proportional to the voltage variation.The displayed resistance is a value converted from the conductance. An appropriate SI prefix (k: kilo, m: milli) is displayed according to the converted resistance, and up to three decimal digits are displayed (conductance [S] = 1/resistance [Ω]).

  • Page 34: Setting The Resistance Range Of Cr Mode

    Basic Functions | Setting the Operation Mode Setting the resistance range of CR mode In CR mode, you can select H or L for the resistance range. The resistance range is used to set the con- ductance with the appropriate resolution. The current range is fixed. You can set the resistance range when the load is off.

  • Page 35: Setting The Voltage In Cv Mode

    Basic Functions | Setting the Operation Mode Setting the voltage in CV mode In CV mode, the product runs current so that the voltage at the load input end of the product is constant. For details, see “Constant voltage (CV) mode operation” 171).

  • Page 36: Setting The Power In Cp Mode

    Basic Functions | Setting the Operation Mode Setting the power in CP mode In CP mode, the product runs current so that the consumed power is constant. For details, see “Constant power (CP) mode operation” 170). Switch to CP mode 31).

  • Page 37: Setting The I-V Characteristics In Arb Mode

    Basic Functions | Setting the Operation Mode Setting the I-V characteristics in ARB mode In ARB mode, arbitrary I-V characteristics can be set by registering multiple I-V characteristic points (pairs of voltage and current values). Three up to 100 points can be registered, and the space between two points is linearly interpolated.
  • Page 38 Basic Functions | Setting the Operation Mode Setting the number of rows • You can change the total number of rows (Count 3 to Count 100) using the Count key. • Increase the number of rows: A copy of the selected row is inserted after the selected row. •...
  • Page 39 Basic Functions | Setting the Operation Mode Example: Setting I-V characteristics You can smoothly set the I-V characteristics by first setting the number of rows and then setting the row with the maximum voltage and proceeding to rows with lower voltages. As an example, let’s set the I-V characteristics while referring to the table below.
  • Page 40 Basic Functions | Setting the Operation Mode Setting the voltage value of row 5 Use the rotary knob and the → key to select the Voltage col- umn of row 5. Press Table (•Edit). The voltage value in row 5 becomes editable. Use the numeric keypad or the rotary knob to enter the volt- age value “24.5”, and then press ENTER.

  • Page 41: Setting The Slew Rate

    Basic Functions Setting the Slew Rate You can set the speed of change when the current is changed. The slew rate functions in the following cases. • When the setting is changed to change the current value (including the pulse function). •...

  • Page 42: Pulse Function

    Basic Functions Pulse Function Pulse refers to the operation of executing two settings repetitively. It is suitable for transient response char- acteristics testing of large capacity power supplies and batteries. When the pulse operation is in progress, a trigger signal is output from the TRIG OUT connector on the front panel 44).

  • Page 43: Setting The Pulse Interval

    Basic Functions | Pulse Function Setting the pulse interval Set the frequency or period and then the length of time or duty cycle of the high level (the ratio of the high level in a cycle). Freq [Hz] or Period [s] Current or conductance: Load value in CC mode or CR mode Th [s] or Duty [%]...

  • Page 44: Turning The Pulse Function On/Off

    Basic Functions | Pulse Function Turning the pulse function on/off If you want to turn on the pulse function, set the pulse level and pulse interval in advance. (p. 42) (p. 43) Press SOURCE > Pulse. Press Pulse On or Pulse Off. The pulse function toggles between on and off each time you press the key.

  • Page 45: Sine Function

    Basic Functions Sine Function The sine function varies the current sinusoidally. It is suitable for superposed ripple testing of large capac- ity power supplies and batteries. When a sine operation is in progress, a trigger signal is output from the TRIG OUT connector on the front panel 47).

  • Page 46: Setting The Frequency

    Basic Functions | Sine Function Amplitude limitation When the amplitude is from 0 A to the rated current, setting the center value of the amplitude to Current 1 causes a portion of the upper side of the sine wave to exceed the rated current, so the amplitude is limited by the rated current.

  • Page 47: Turning The Sine Function On/Off

    Basic Functions | Sine Function Turning the sine function on/off If you want to turn on the sine function, set the sine amplitude and frequency in advance. (p. 42) (p. 43) Set the operation mode to CC mode 31). Press Sine. Press Sine On or Sine Off.

  • Page 48: Alarm Function

    Basic Functions Alarm Function This function detects anomalies and protects the DUT. Alarm types and operation There are two types of alarm based on urgency level: alarm 1 (high urgency) and alarm 2 (low urgency). Alarm 1 (high urgency) This alarm detects anomalies and automatically turns off the load. The operating conditions of this alarm are fixed.
  • Page 49 Basic Functions | Alarm Function Alarm 2 (low urgency) This alarm protects the DUT. The operating conditions of this alarm can be set freely within a given range. Name Display Mode Activation condition Activation Overcurrent protec- OCP Alarm Current at or exceeding the OCP setting Load off or tion (OCP) (0 % to 110 % of rated current) flows...

  • Page 50: Setting Overcurrent Protection (Ocp)

    Basic Functions | Alarm Function Setting overcurrent protection (OCP) This function either puts a limit on the current (OCPL) or turns off the load of the product (OCPT) when a current that is equal to or exceeds the set value is running through the product. You can set the overcur- rent protection setting and the action taken when an alarm occurs.

  • Page 51: Setting Overpower Protection (Opp)

    Basic Functions | Alarm Function Setting overpower protection (OPP) This function either puts a limit on the power (OPPL) or turns off the load of the product (OPPT) when a current that is equal to or exceeds the set value is applied to the product. You can set the overpower pro- tection setting and the action taken when an alarm occurs.

  • Page 52: Setting Undervoltage Protection (Uvp)

    Basic Functions | Alarm Function Setting undervoltage protection (UVP) This function limits the current (UVPL) or turns off the load (UVPT) when the voltage applied to the product becomes equal to or less than the UVP setting. You can also turn UVP off. You can set this regardless of whether the load is on or off.

  • Page 53: Setting Watchdog Protection (Wdp)

    Basic Functions | Alarm Function Setting watchdog protection (WDP) This function turns off the load of the product when SCPI communication is performed for a length of time that is equal to or exceeds the WDP setting. Press SYSTEM. The Configure screen appears. If the Configure screen does not appear, press Configure.

  • Page 54: When An Alarm Occurs

    Basic Functions | Alarm Function When an alarm occurs An alarm message appears in the message area of the display. If the action taken when an alarm occurs is set to Limit, the operation mode display changes to the alarm name. Example when OVP occurs Example when UVPL occurs 　...

  • Page 55: Recording Measurements

    Basic Functions Recording Measurements This product shows the most recent measurements (current, voltage, power) on the display. Measure- ments are recorded in the internal memory (data logging function). By setting measurement recording conditions 56), you can control the timing that measurements are recorded.

  • Page 56: Setting Recording Conditions

    Basic Functions | Recording Measurements Setting recording conditions You can set the following measurement recording conditions. Condition Value Description Trigger – Set the measurement recording timing and the number of times to record measurements. Source – Event (trigger source) that defines the measurement recording condi- tion.
  • Page 57 Basic Functions | Recording Measurements Recording condition setting examples  Example 1: • Source: Immediate • Interval: Disable • Count: 3 Press the Initiate key. Recording end Measurement Measurement Measurement recording recording recording count = 1 count = 2 count = 3 Delay Recording time Recording time...
  • Page 58 Basic Functions | Recording Measurements Measurement recording flowchart Start Initiate COUNT = 0 Other Source Trigger application Immediate Delay INTERVAL TIMER = 0 Measurement recording (Sense Aperture) INTERVAL TIMER start COUNT = COUNT + 1 COUNT = Count Enable Interval Disable INTERVAL TIMER = Interval time...

  • Page 59: Aborting A Measurement Recording

    Basic Functions | Recording Measurements Setting recording conditions Press MEASURE > Acquire. Use the rotary knob to select a measurement recording condition 56), and then press Edit. Use the numeric keys or rotary knob to enter a value, and then press ENTER. Repeat Step 2 and Step 3 to set the recording conditions.

  • Page 60: Displaying The Recorded Measurement

    Basic Functions | Recording Measurements Displaying the recorded measurement Measured data can be shown in a table or chart. Table display Press MEASURE > Display > Table. Function display Main display 　　 You can perform the following operations on the main display. Using the rotary knob, Page Up Page Down...

  • Page 61: Recording Integrated Data

    Basic Functions Recording Integrated Data Recording integrated current, integrated power, and elapsed time Integrated current (Capacity Ah), integrated power (Energy Wh), and elapsed time (s) are called integrated data. You can set the recording period and the reset method of integrated data as in the table below. In the factory default conditions, Integral Gate is set to Load On and Reset is set to Auto.
  • Page 62 Basic Functions | Recording Integrated Data Recording integrated data manually Press MEASURE > Data. Press Start. Integrated data recording starts. Press Stop. Integrated data recording stops. Resetting integrated data Press MEASURE > Data. Press Reset. This resets the integrated data. User’s Manual PLZ-5WH2...

  • Page 63: Showing Or Hiding Integrated Data

    Basic Functions | Recording Integrated Data Showing or hiding integrated data You can show or hide integrated data. This is useful for example for battery discharge tests. By factory default, the integrated current and integrated power are not shown. Press MEASURE > Display. Use the rotary knob to select the parameter, and then press Edit.

  • Page 64: Saving Measurement Data

    Basic Functions Saving Measurement Data Recorded measurement values and integrated data can be stored in CSV format to a USB (p. 55) (p. 61) memory device. Press MEASURE > Data Export. Insert a USB memory device into the USB port on the front panel. “sdxx”...

  • Page 65: Advanced Functions

    Advanced Functions Changing the Response Speed Set the response speed for CV, CR, or ARB mode according to the DUT’s conditions and application. In CV or CR mode, the factory default setting is “Normal”. You can make the response speed faster by set- ting “Fast”.

  • Page 66: Soft Start

    Advanced Functions Soft Start Soft start is a function that controls the rise time of the load current. Soft start functions only when all the following conditions are met. • The rise time of the soft start has been set. •...

  • Page 67: Remote Sensing

    Advanced Functions Remote Sensing You can change a voltage measurement point from a DC INPUT terminal to an arbitrary sensing point. By setting sensing points at the DUT end, influences such as voltage drops caused by the resistance of the load cables can be reduced, and the load current can be stabilized.

  • Page 68: Connecting The Sensing Cables

    Advanced Functions | Remote Sensing Connecting the sensing cables Connect the included safety terminal adapter, TL41, to the sensing cables in advance. (p. 67) CAUTION • Risk of damage to the internal circuitry. Never connect cables to the SENSING termi- nals while the POWER switch is turned on.

  • Page 69: Enabling Or Disabling Remote Sensing

    Advanced Functions | Remote Sensing Enabling or disabling remote sensing After connecting the sensing cables to the SENSING terminals, enable remote sensing. Remote sensing can be set when the load is turned off and sequence operation is stopped. Press SYSTEM. If the Configure screen does not appear, press Configure.

  • Page 70: Cutoff Function

    Advanced Functions Cutoff Function This function turns the load off when the elapsed time from load-on, the voltage drop, the integrated cur- rent, or the integrated power reaches the specified value. These four functions are collectively referred to as cutoff. Setting the cutoff activation condition Multiple cutoffs can be specified simultaneously.
  • Page 71 Advanced Functions | Cutoff Function If set to Enable, use the rotary knob to select Level, and then press Edit. Use the numeric keypad or the rotary knob to enter the value for activating the cut- off, and then press ENTER. Parameter Setting range Resolution Elapsed...

  • Page 72: Cutoff Operation

    Advanced Functions | Cutoff Function Cutoff operation Cutoff is activated based on integrated data 61). The operation necessary before and after the cutoff varies depending on the integrated data recording setting.  Relationship between the cutoff activation condition, integrated data setting, and load on/off Example: When the enabled cutoff activation condition is set only to elapsed time (ETime) and Level is set to 10 seconds...

  • Page 73: When Cutoff Is Activated

    Advanced Functions | Cutoff Function When cutoff is activated When any of the enabled cutoff items (elapsed time, voltage drop, integrated current, or integrated power) reaches the specified value, cutoff is activated, and the load turns off. If a cutoff is activated, the icon cor- responding to the item that caused it appears in the top area of the display.

  • Page 74: Types Of Memory

    Advanced Functions Types of Memory The product has two types of memory, ABC preset memories and setup memory. ABC preset memories are for storing three sets (A, B, and C) of load values. Because you can recall saved settings just by pressing a key, this feature is useful when you want to switch between the three sets of values in order.

  • Page 75: Abc Preset Memories

    Advanced Functions ABC Preset Memories Load values can be saved in any of the three memories A, B, or C. The load values for each operation mode saved to the memories are as follows. Operation mode Load value CC mode Current CR mode Conductance...

  • Page 76: Saving To Abc Preset Memories

    Advanced Functions | ABC Preset Memories Saving to ABC preset memories You can save settings regardless of whether the load is on or off. Alarm operating conditions are not saved. Enter the load settings in the operation mode that you want to save in. Press ABC to select ABC.

  • Page 77: Recalling Abc Preset Memory Entries

    Advanced Functions | ABC Preset Memories Recalling ABC preset memory entries You can recall settings regardless of whether the load is on or off. If the settings that you recall cause alarm operating conditions to be exceeded, an alarm will occur. Alarm operating conditions are not saved to ABC preset memories.

  • Page 78: Setup Memory

    Advanced Functions Setup Memory The setup memory can store up to 20 sets (0 to 19) of the current conditions of the items listed below. The current conditions can also be saved in a USB memory device. • Load on/off state •...

  • Page 79: Saving To The Setup Memory

    Advanced Functions | Setup Memory Saving to the setup memory Saving over previous settings (internal memory and USB memory) Set the operation mode and settings to the states you want to save them in. Press SYSTEM > Recall Save. USB memory device Internal memory Internal memory Connecting a USB memory device to the USB port on the front panel displays an “sdxx”...

  • Page 80: Checking The Setup Memory Details

    Advanced Functions | Setup Memory Changing the memory name (USB memory device only) Press SYSTEM > Recall Save. Insert a USB memory device into the USB port on the front panel. An “sdxx” folder is displayed. The “xx” changes depending on the USB memory device. Use the rotary knob to select the setup memory, and press Rename.

  • Page 81: Recalling The Setup Memory

    Advanced Functions | Setup Memory Recalling the setup memory You can recall memory content when load is turned off. Press SYSTEM > Recall Save. Use the rotary knob to select the setup memory. Press Property to view the setting content of the setup memory. Connecting a USB memory device to the USB port on the front panel displays an “sdxx”...

  • Page 82: Synchronized Operation

    • Synchronizing measurement recording (remote control only) • Synchronizing the starting and resuming of sequences Any of the models in the PLZ-5WH series or PLZ-5WH2 series can be connected together. Synchronized operation is possible even during parallel operation.  Simple setting using LAN cables Common LAN cables (straight-through) up to 3 m long can be used.
  • Page 83 Advanced Functions | Synchronized Operation Connect all the PLZ-5WH2 series products with LAN cables. Connect the OUT port of EXT SYNC of the product to the IN port of EXT SYNC of another unit with a LAN cable. Connection example...

  • Page 84: Synchronizing The Load On/Off Operation

    When load on/off synchronization is enabled, “Load On” and “Load Off” appear in the sub-function area. Perform Step 1 and Step 2 on all the PLZ-5WH2 series products you want to syn- chronize. Press Load On or Load Off on any of the synchronized PLZ-5WH2s.

  • Page 85: Synchronizing Measurement Recording

    Use the rotary knob to select MSync, and then press ENTER. Press Initiate. The “MSync” is shown in the sub-function area. Perform Step 1 and Step 4 on all the PLZ-5WH2 series products you want to syn- chronize. Press MSync on any of the synchronized PLZ-5WH2s.

  • Page 86: Synchronizing The Start Of Sequences

    Use the rotary knob to select MSync, and then press ENTER. Execute the sequence (p.103). The sequence pauses before executing the first step, and “MSync” appears in the sub‐function  area. Perform Step 1 and Step 4 on all the PLZ-5WH2 series products you want to syn- chronize. Press MSync on any of the synchronized PLZ-5WH2s. The sequence starts simultaneously on all synchronized PLZ‐5WH2 series products.

  • Page 87: Synchronizing The Resuming Of Sequences

    The sequence is executed. Wait for the sequence on all synchronized PLZ-5WH2 series products to be paused. The sequence pauses (waits for trigger) before executing a step with Wait (pre) set to MSync, and “MSync” appears in the sub-function area.

  • Page 88: Remote Control

    Advanced Functions Remote Control In addition to using the front panel, you can also control the product remotely by sending commands from a PC. For details on remote control, see the Communication Interface Manual on the included CD-ROM. Releasing remote control You can return the product’s control from remote control (the product’s panel control not accepted) to local control (panel control accepted).

  • Page 89: Sequence Function

    Sequence Function Overview of the Sequence Function Sequence is a function that executes a sequence of operations set in advance. Programs and steps A sequence consists of programs and steps. A program is a collection of steps. Steps are executed in order one at a time, starting from step 1.

  • Page 90: Program Configuration

    Sequence Function Program Configuration You can set programs in CC, CR, CV, and CP modes (ARB mode is excluded). Different programs are cre- ated for each operation mode. How to view the program editing screen Press SEQUENCE and then Program to display the sequence editing screen. The program created in the present operation mode is displayed.

  • Page 91: Setting The Number Of Loops

    Sequence Function | Program Configuration Use the numeric keypad or the rotary knob to enter the program name, and then press ENTER. You can enter up to 255 characters for the program name. For information about registering steps to a program, see “Setting Steps” 95).

  • Page 92: Setting Protection Functions

    Sequence Function | Program Configuration Setting protection functions For each program, you can set overcurrent protection (OCP), overpower protection (OPP), and undervolt- age protection (UVP) in a program. You cannot set different protection functions for each step. The protec- tion functions that you can set varies depending on the operation mode. Press SEQUENCE >...

  • Page 93: Setting The Load State At The End Of The Sequence

    Sequence Function | Program Configuration Setting the load state at the end of the sequence You can set the load state (load on or off, load value, slew rate) at the end of the sequence of a program. If this function is disabled, at the end of the sequence, the load is set to the value of the last step. Press SEQUENCE >...

  • Page 94: Changing A Program Name

    Sequence Function | Program Configuration Changing a program name Press SEQUENCE > Program. Use the rotary knob to select a program, and then press Select. A check mark appears to the left of the selected program name. Press Rename. Use the numeric keypad or the rotary knob to enter the program name, and then press ENTER.

  • Page 95: Setting Steps

    Sequence Function Setting Steps Creating steps Press SEQUENCE > Program. Use the rotary knob to select a program, and then press Select. A check mark appears to the left of the selected program name. Press Steps. The step editing screen appears. If a new step editing screen is opened, the first step with the initial value is registered.
  • Page 96 Trigger source Description MSync Synchronizes the releasing of the paused state on synchronized PLZ-5WH2 series prod- ucts 87). Releases the pause state when a signal is received at pin 13 of the EXT CONT connector.
  • Page 97 Sequence Function | Setting Steps  Wait (post) Set the post-trigger source. If you set the post-trigger source, the program pauses after executing a step. The pause is released when the specified trigger source condition is met. Press Trig IN and Cutoff to turn each trigger source on or off. The value switches between on and off each time you press the key.

  • Page 98: Deleting Steps

    Sequence Function | Setting Steps Deleting steps Press SEQUENCE > Steps. Use the rotary knob to select a step, and then press Delete. The selected step is deleted. Press Save. The program is updated. This completes the setting. User’s Manual PLZ-5WH2...

  • Page 99: Sequence Creation Tutorial

    Sequence Function Sequence Creation Tutorial In this example, we will actually create a sequence from the front panel. We will enter the following program in CC mode for the PLZ12005WH2. Program name: Program1, number of loops: 2 Current Execution time Load Transition Trigger output Step 1...

  • Page 100: Registering Steps To Program1

    Sequence Function | Sequence Creation Tutorial Registering steps to Program1 When registering steps to a program, we recommend that you save the program after setting all the steps. There is no need to save a program after setting each step. Creating step 1 Use the rotary knob to select Program1, and then press Select.
  • Page 101 Sequence Function | Sequence Creation Tutorial Creating step 2 Press Insert. Step 2 is inserted. Use the ← key to select a cell in the Level column of Step 2 (row 2), and then press Edit. Set step 2 as follows: Level: 6, Dwell: 12, Load: On (Immedi- ate).
  • Page 102 Sequence Function | Sequence Creation Tutorial Creating step 4 Press Insert. Step 4 is inserted. Use the ← key to select a cell in the Level column of Step 4 (row 4), and then press Edit. Set step 4 as follows: Level: 3, Dwell: 15, Load: On (Immedi- ate).

  • Page 103: Executing, Pausing, And Stopping Sequences

    Number of running loops/total number of loops. The running step is highlighted in blue. Synchronizing the start timing of sequences The start timing of sequences can be synchronized on synchronized PLZ-5WH2 series products. For details, see “Synchronizing the start of sequences” 86).

  • Page 104: Aborting A Sequence

    Sequence Function | Executing, Pausing, and Stopping Sequences Aborting a sequence Pressing Abort during sequence execution stops the sequence execution in progress (if the load is on, it remains on). Pausing a sequence Press Suspend while a sequence is running. The sequence is paused (figure below).
  • Page 105 Sequence Function | Executing, Pausing, and Stopping Sequences  Trigger processing procedure The following figure shows the trigger processing procedure. Start Initiate Other Source Trigger application Immediate Delay Sequence start Press SEQUENCE > More. Use the rotary knob to select the trigger (p.

  • Page 106: Exporting And Importing Programs

    Sequence Function Exporting and Importing Programs Programs saved in the internal memory can be exported to a USB memory device. Programs exported to a USB memory device can also be imported into the internal memory. Insert a USB memory device into the USB port on the front panel. Press SEQUENCE >...

  • Page 107: Importing Programs From A Usb Memory Device

    Sequence Function | Exporting and Importing Programs Importing programs from a USB memory device On the Import/Export screen 106), press USBInternal, and select “USB Mem- ory,” which is at the bottom of the display area. Each time you press USBInternal, the selection toggles between USB Memory and Internal Memory.

  • Page 108: External Control

    External Control Preparation for External Control The product can be controlled and monitored from an external device. The external control terminals are isolated from the DC INPUT terminals. Moreover, the BNC connectors (V MON OUT, I MON OUT, TRIG OUT) are isolated from the chassis. Control Functions that can be controlled/monitored Connector...

  • Page 109: Ext Cont Connector Pin Arrangement

    External Control | Preparation for External Control EXT CONT connector pin arrangement EXT CONT connector pin number Pin no. Signal name Description In/Out – STATUS COM Status signal common for pins 14 to 16. – – – – – – ALARM CLEAR Alarm clearing input 117).

  • Page 110: Connecting To The Ext Cont Connector

    To connect the signal cable to the EXT CONT connector, use the external control connector kit that comes with the product. For information about how to use this kit, see the TE Connectivity (formerly AMP) cata- log. For information about how to obtain these tools or replacement parts, contact your Kikusui agent or distributor.
  • Page 111 External Control | Preparation for External Control Connect the signal cable to the EXT CONT connector. Signal cable PLZ12005WH2 example Connect the signal cable to the external controller. This completes the external control connection procedure. User’s Manual PLZ-5WH2...

  • Page 112: Load Setting Control

    External Control Load Setting Control Constant current (CC), constant resistance (CR), and con- stant power (CP) control You can control the load values (current, conductance, power) of CC, CR, and CP modes using external voltage. When you apply an external voltage between 0 V to 10 V to the EXT CONT connector, a load set- ting proportional to the change can be obtained.

  • Page 113: Constant Voltage (Cv) Control

    External Control | Load Setting Control Constant voltage (CV) control You can control the voltage in CV mode with an external voltage. When you apply an external voltage of 0 V to 10 V to the EXT CONT connector, the voltage varies proportionally to that external voltage. An external voltage of 0 V results in voltage of 0 V.

  • Page 114: Controlling The Current To Be Superimposed On The Constant Current (Cc)

    External Control | Load Setting Control Controlling the current to be superimposed on the constant current (CC) You can control the current to be superimposed to the current value of CC mode with an external voltage. When you apply an external voltage between 0 V to 10 V to the EXT CONT connector, the load current becomes the sum of the current proportional to the external voltage change and the Present current set- ting.

  • Page 115: Controlling Load On/Off

    External Control Controlling Load On/Off You can control load on/off with an external signal. You can also monitor the load on/off state. Priority relationship between the operation of the external contact and the operation of the LOAD key on the front panel Relationship between external contact and LOAD key (when Input Logic is Positive) HIGH=On LOW=Off...

  • Page 116: Load-On Status Signal Output

    External Control | Controlling Load On/Off Load on/off control state display You can view the external contact state and the external contact input logic setting for the load on/off con- trol with the icons in the top area of the display. For example, if the external contact state is low and the external contact input logic setting is positive, you cannot turn the load on by pressing LOAD.

  • Page 117: Controlling Alarms

    External Control Controlling Alarms You can use external control signals to activate and clear alarms. You can also monitor alarm occurrences. Alarm input Use pin 6 of the EXT CONT connector. Use pin 10 as the common. An +5 V alarm is activated and the load is turned off when the input to pin 6 is a EXT CONT 10 k...

  • Page 118: Trigger Input/Output

    External Control Trigger Input/Output The rear panel has a trigger input terminal (EXT CONT pin 9) and the front panel a trigger output terminal (TRIG OUT). Trigger input When Wait(post) is set to Trig IN in a sequence step setting 95), the sequence is paused at the end of the step.In this case, when the signal input to TRIG INPUT (pin 9) of the EXT CONT connector changes from high to low level, the pause is released at the falling edge of that signal.

  • Page 119: Digital I/O

    External Control Digital I/O The rear-panel EXT CONT connectors include digital outputs DIGITAL0 (pin 11), DIGITAL1 (pin 12), and DIGITAL2 (pin 13) and digital input DIGITAL2 (pin 13). The input and output of DIGITAL2 can be switched 131). Digital output is set to high level during a sequence step period. Digital input is used as a trigger input for sequence and measurement functions.

  • Page 120: Current/Voltage Monitor Signal Output

    External Control Current/Voltage Monitor Signal Output You can monitor the voltage and current by using the monitor signal outputs on the front panel. The current monitor signal is output from I MON OUT and across pins 23 and 24 (pin 23 is common) of the EXT CONT connector.

  • Page 121: Parallel Operation

    Parallel Operation Overview of Parallel Operation The PLZ-5WH2 series or Kikusui Electronic Load PLZ-5WH series can be connected in parallel to increase the total current and power capacities. The included or optional parallel operation signal (p. 181) cable kit is required for parallel connection.

  • Page 122: Making Connections For Parallel Operation

    • Risk of electric shock. When using the PLZ-5WH2 as the master unit, do not con- nect Kikusui Electronic Load PLZ-5WH series as slave units. To avoid damaging the product, observe the following precautions. CAUTION •...
  • Page 123 Parallel Operation | Overview of Parallel Operation This section explains an example of performing parallel operation using two PLZ12005WH2s. Turn the load off of all the electronic loads to be connected in parallel. Connect the DC INPUT terminals of each unit to the DUT. Slave unit Master unit Example: Connecting one slave unit...

  • Page 124: Performing Parallel Operation

    Parallel Operation | Overview of Parallel Operation Connect all the electronic loads to be operated in parallel with parallel operation signal cables. Connect the PARALLEL OUT connector and IN connector with a parallel operation signal cable. Parallel operation signal cable PARALLEL IN PARALLEL OUT Slave unit...

  • Page 125: Slew Rate And Response Speed Settings During Parallel Operation

    Parallel Operation | Overview of Parallel Operation Slew rate and response speed settings during parallel operation During parallel operation, the slew rate and response speed settings on the master unit are used. The slew rate increases proportionally to the number of units operating in parallel. For details, see “Slew rate during parallel operation”...

  • Page 126: System Settings

    System Settings Displaying and Changing CONFIG Settings You can set the following parameters using the CONFIG settings. Parameter Description Value Remote Sensing Enable/Disable Remote sensing(p. 69). Power On RST/RCL0/Resume Panel settings at startup 127). Watchdog Enable/Disable Watchdog protection setting 53). Delay 1 second to 3 600 seconds (1 Time until watchdog times out.

  • Page 127: Panel Settings At Startup

    System Settings | Displaying and Changing CONFIG Settings Panel settings at startup The panel setting state at power-on can be selected. Parameter Description Start with the reset settings 139). RCL0 Start in setup memory (p. 78) 0 condition. Resume Start with the same settings as when the power was switched off the previous time (but always load off).

  • Page 128: Screen Saver

    System Settings | Displaying and Changing CONFIG Settings Screen saver The screen saver starts and the display dims when there is no panel activity for a specified length of time. Set the time until the screen saver starts. Press SYSTEM. If the Configure screen does not appear, press Configure.

  • Page 129: Key Lock

    System Settings | Displaying and Changing CONFIG Settings Key lock The keys can be locked to prevent changing the settings or overwriting memory or sequences by mistake. Setting the key lock level You can set three different key lock levels according to the type of keys whose operation is prohibited. While key lock is enabled, an icon is shown in the top area of the display depending on the key lock level.

  • Page 130: Setting The Beep Sound

    System Settings | Displaying and Changing CONFIG Settings Enabling the key lock from the SYSTEM screen Press SYSTEM. If the Configure screen does not appear, press Configure. Use the rotary knob to select Key Lock, and then press Edit. Use the rotary knob to select Enable, and then press ENTER. Key lock is enabled.

  • Page 131: Setting The Digital2 Signal Input/Output

    System Settings | Displaying and Changing CONFIG Settings Setting the DIGITAL2 signal input/output Press SYSTEM. If the Configure screen does not appear, press Configure. Use the rotary knob to select Direction under Digital2, and then press Edit. Use the rotary knob to select Input (digital input) or Output (digital output), and then press ENTER.

  • Page 132: Displaying/Changing The Interface Settings

    – model name and serial number. Desired Description Enter the service name (up to mDNS service name setting 63 characters). Factory default is KIKUSUI XXXX Electronic – Load (XXXX = model name) and serial number. Dynamic DNS Enable/Disable Setting of dynamic DNS ✓...
  • Page 133 System Settings | Displaying/Changing the Interface Settings Press SYSTEM > Interface. The Interface (View Mode) screen appears. If the Interface screen does not appear, press Interface again. View Mode is for checking the settings. You cannot change the settings. Press Modify. The Interface (Modify Mode) screen appears.

  • Page 134: Resetting The Interface Settings

    System Settings | Displaying/Changing the Interface Settings Resetting the interface settings Interface settings that have a ✓ mark in the reset column in above are returned to the factory (p. 132) default setting. Press SYSTEM > Interface. If the Interface screen does not appear, press Interface again. Press Modify >...

  • Page 135: Displaying Scpi Errors

    System Settings Displaying SCPI Errors You can check the content of the SCPI error when an SCPI error occurs during remote control. Up to 16 errors are displayed. If the 17th error occurs, the 16th error changes to “-350 Queue overflow,” and subsequent errors are not displayed.

  • Page 136: Setting The Date/Time

    System Settings Setting the Date/Time The date and time are used when saving setup memory. If you change the time zone, the year, month, and day change accordingly. If the product is connected to LAN and can access the Internet, the year, month, and day will be updated automatically when you set the time zone.

  • Page 137: Factory Default Settings And Reset Settings

    System Settings Factory Default Settings and Reset Settings The product provides “factory default settings” and “reset settings” as default settings. Restoring the factory default settings Restoring the factory default settings deletes all the user data*. For details about the factory default setting, see “Main settings at factory default and at reset” 139).

  • Page 138: Restoring The Reset Settings

    System Settings | Factory Default Settings and Reset Settings Restoring the reset settings You can reset some of the settings to their factory defaults. For the items that are reset, see “Main settings at factory default and at reset” 139). You can also reset only the interface settings 134).

  • Page 139: Main Settings At Factory Default And At Reset

    System Settings | Factory Default Settings and Reset Settings Main settings at factory default and at reset The main settings at factory default and at reset, for each of the settings that can be done with the SOURCE key, MEASURE key, SEQUENCE key, and SYSTEM key, are listed below. All items that have the ✓...
  • Page 140 System Settings | Factory Default Settings and Reset Settings SOURCE function settings (continued) Parameter Factory default Reset PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 Slew rate 0.001 A/µs 0.002 A/µs 0.004 A/µs 0.01 A/µs 0.02 A/µs ✓ Overcurrent protection 22 A 44 A 88 A 264 A 440 A...
  • Page 141 System Settings | Factory Default Settings and Reset Settings SYSTEM function settings Parameter Factory default Reset Remote sensing Disable – Panel settings at startup (Power On) Resume – Watchdog protection function Disable – Set time for watchdog protection function (Delay) 60 s –...

  • Page 142: Updating

    Updating You can update the product’s firmware by using a USB memory device. If there is an update, you can obtain it from the download service on the Kikusui website (http://www.kiku- sui.co.jp/en/download/). Save the update files (Update.img, CHECKSUM.md5) in the root directory of the USB memory device.

  • Page 143: Displaying The Device Information

    System Settings Displaying the Device Information You can display the model name, serial number, firmware version, IP address, and other device informa- tion. Press SYSTEM > Information. The device information is displayed. You can scroll the screen by turning the rotary knob. If a connection is established when IP Address >...

  • Page 144: Inspection

    When the battery is exhausted, the time becomes inaccurate. For information about replacing the battery, contact your Kikusui agent or distributor. Calibration The product is calibrated before shipment. To maintain long-term performance, we recommend periodic calibration. To have your product calibrated, contact your Kikusui agent or distributor. User’s Manual PLZ-5WH2...

  • Page 145: Specifications

    Specifications Unless specified otherwise, the specifications are for the following settings and conditions. • The product is warmed up for at least 30 minutes. • Rear-panel DC INPUT terminals are used. The used terminology is as follows: • TYP: These are typical values that are representative of situations where the product operates in an environment with an ambient temperature of 23 °C (73.4 °F).

  • Page 146: Constant Resistance (Cr) Mode

    Specifications Constant resistance (CR) mode Parameter PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 H range 500 mS to 0 S 1 S to 0 S 2 S to 0 S 6 S to 0 S 10 S to 0 S Operating range L range 5 mS to 0 S 10 mS to 0 S...

  • Page 147: Constant Power (Cp) Mode

    Specifications Constant power (CP) mode Parameter PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 Operating 0 W to 1 000 W 0 W to 2 000 W 0 W to 4 000 W range Setting range 0.00 W to 1 010.00 W 0.00 W to 2 020.00 W 0.0 W to 4 040.0 W Resolution 0.02 W...

  • Page 148: Measurement Function

    Specifications Measurement function Voltmeter Parameter All models Display 0.00 V to 1 000.00 V Resolution 10 mV Accuracy ±(0.05 % of reading + 0.05 % of rating) Parallel operation ±(0.1 % of reading + 0.1 % of rating) (TYP) Ammeter Parameter PLZ1005WH2 PLZ2005WH2...

  • Page 149: Pulse Function

    Specifications Pulse function Parameter All models Operation mode CC and CR Frequency setting range 1.0 Hz to 10.0 kHz Frequency setting 1 Hz to 10 Hz 0.1 Hz resolution 11 Hz to 100 Hz 1 Hz 110 Hz to 1 000 Hz 10 Hz 1.1 kHz to 10.0 kHz 0.1 kHz...

  • Page 150: Sine Function

    Specifications Sine function Parameter All models Operation mode Frequency setting range 1 Hz to 1 000 Hz, 2 000 Hz, 5 000 Hz, 10 000 Hz Frequency setting 1 Hz to 10 Hz 1 Hz resolution 20 Hz to 100 Hz 10 Hz 200 Hz to 1 000 Hz 100 Hz...

  • Page 151: Alarm Function

    Specifications Alarm function Alarm 1 Parameter All models Overvoltage detection Turns off the load when a voltage that is 110 % of the rating or higher is applied. Reverse-connection detection Turns off the load when approximately -1 % of the rated current flows through the DC INPUT terminals.

  • Page 152: Integration Display

    Specifications Integration display Parameter PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 Elapsed time display Displays the time from load on to load off. Range 0 s to 3 600 000 s (1 000 h 0 min 0 s) Ampere-hour meter Displays integrated current display Range 0 Ah to 70 000 Ah 0 Ah to 140 000 Ah 0 Ah to 280 000 Ah 0 Ah to 800 000 Ah 0 Ah to 1 400 000 Ah...

  • Page 153: Common Specifications

    Specifications Common specifications EXT CONT connector Specifications Parameter Load on/off control input Logic level switchable. Pulled up to 5 V by a 10 kΩ resistor. The thresholds are HIGH: 3.5 V to 5 V, LOW: 0 V to 1.5 V. Alarm input An alarm is activated with a voltage between 0 V and 1.5 V.
  • Page 154 Specifications BNC connector Parameter Specifications Trigger output Transmits 10 μs pulses during step execution when trigger output is set in a sequence. Transmits 10 μs pulses during pulse operation and sine operation. Output impedance: 200 Ω, output voltage HIGH: 4.2 V to 5.0 V, LOW: 0 V to 0.4 V. Current monitor Output voltage Outputs 0 V to 10 V for 0 % to 100 % of the rated current...

  • Page 155: General Specifications

    Specifications General specifications Parameter PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 Input voltage range 100 Vac to 240 Vac (90 Vac to 250 Vac) single phase Input frequency range 47 Hz to 63 Hz Power consumption 70 VAmax 90 VAmax 150 VAmax 360 VAmax 590 VAmax Inrush current...

  • Page 156: External Dimensions

    Specifications External dimensions PLZ1005WH2, PLZ2005WH2 4-M3 screw holes (Max. screw insertion depth: 6 mm (0.24)) 55 (2.17) 323 (12.72) 22 (0.87) 30 (1.18) 4- 5 (0.20) (Four holes for attaching the rubber feet) MAX540 (21.26) 40 (1.57) MAX25 (0.98) 400 (15.75) MAX455 (17.91) 22.5 (0.89) 367.5 (14.47)
  • Page 157 Specifications PLZ4005WH2 4- 5 (0.20) (Four holes for attaching the rubber feet) 4-M3 screw holes 30 (1.18) (Max. screw insertion depth: 6 mm (0.24)) (0.87) 55 (2.17) 423 (16.65) MAX640 (25.2) MAX440 (17.32) 40 (1.57) MAX25 (0.98) 500 (19.69) 429.5 (16.91) 22.5 (0.89) 467.5 (18.41) 8-M4 screw holes (including opposite face)
  • Page 158 Specifications PLZ12005WH2 58.5 (2.3) 448 (17.64) 16 M6 screw holes (Max. screw insertion depth: 8 mm (0.31) 36 (1.42) 74.2 (2.92) MAX545 (21.46) MAX720 (28.35) 430 (16.93) 44.8 (1.76) MAX25 (0.98) 550 (21.65) 18-M4 screw holes (including opposite face) (Max. screw insertion depth: 8 mm (0.31)) 132.5 220 (8.66)
  • Page 159 Specifications PLZ20005WH2 58.5 448 (17.64) (2.3) 16 M6 screw holes (Max. screw insertion depth: 8 mm (0.31)) 36 (1.42) 74.2 (2.92) MAX720 (28.35) MAX545 (21.46) 430 (16.93) 550 (21.65) 44.8 (1.76) MAX25 (0.98) 18-M4 screw holes (including opposite face) (Max. screw insertion depth: 8 mm (0.31)) 8-M10 screw holes 132.5...

  • Page 160: Appendix

    30 °C or greater, or when wires are bundled together and little heat is radiated. Nominal cross-sectional AWG (reference cross-sectional Kikusui- Recommended Allowable Current Current [A] area (mm area mm [A](Ta = 30 °C)
  • Page 161 (-) output wires of the load cable side by side or bundling them together is more effective against unwanted noise. The Kikusui-recommended currents shown in the above table are allowable currents that have been reduced in consideration of the potential bundling of load cables. Use these values as a guide- line when connecting load cables.

  • Page 162: Methods To Stabilize Operation

    Appendix Methods to Stabilize Operation Using the product at a fast response speed may cause instable oscillation or other operation instability. To achieve stabilization, the load cable inductance must be reduced and an appropriate response speed must be set. Reducing the load cable inductance Relationship between voltage induction when current is changed and induc- tance Load cables have inductance L.

  • Page 163: Optimizing The Response Speed

    Appendix | Methods to Stabilize Operation When the value of instantaneous voltage of the DC INPUT terminals drops below the minimum operating voltage, the set slew rate is not realized. You must be careful especially when the slew rate setting is high or when changing the load rapidly using large current.

  • Page 164: Frequency Derating Of Input Voltage

    Appendix Frequency Derating of Input Voltage Keep the frequency and amplitude of the voltage applied to the DC Input terminals below the derating curve shown below. Otherwise, the internal circuit may break. Frequency derating curve of the DC INPUT terminal voltage 1 000 1 000 10 000...

  • Page 165: Slew Rate For Small Currents

    Appendix Slew Rate for Small Currents If the load current is made small in current (CC) mode, the specified slew rate may not be achieved. The following graph shows the relationship between the set current and the rise/fall time of the actual current when the slew rate is set to 20 A/µs or 2 A/µs.

  • Page 166: Operating Area

    Appendix Operating Area As shown in the following figure (PLZ12005WH2 example), the product can be used within the area enclosed by the constant voltage line according to the rated voltage (L1), the constant power line accord- ing to the rated power (L2), the constant current line according to the rated current (L3), and the constant voltage line according to the minimum operating voltage (L4) (operating area where the specifications are guaranteed).

  • Page 167: Operation Of The Constant Current (Cc) Mode

    Appendix | Operating Area Operation of the constant current (CC) mode Operation of the constant current mode When the product is used in CC mode, it operates as a constant current load as shown in the following fig- ure. The product sinks specified current I even when output voltage V1 of the constant-voltage power sup- ply changes.

  • Page 168: Operation In Constant Resistance (Cr) Mode

    Appendix | Operating Area Operation in constant resistance (CR) mode Operation in constant resistance mode When the product is used in CR mode, it operates as a constant resistance load as shown in the following figure. When voltage V1 of the constant-voltage power supply varies, the product sinks current to maintain I = V/R, with the specified resistance R fixed.
  • Page 169 Appendix | Operating Area Transition of the operating point: Overcurrent protection (OCP) operation Operating area Constant current line (OCP setting) OCP trip point Constant resistance line (Constant resistance settings: R Logarithmic scale Input current (A) If the OCP setting I is smaller than the current value I at point B, when the product resistance is →...

  • Page 170: Constant Power (Cp) Mode Operation

    Appendix | Operating Area Constant power (CP) mode operation Constant power mode operation When the product is used in CP mode, the product operates as a constant power load as shown in the fol- lowing figure. When voltage V1 of the constant-voltage power supply increases, input current I decreases so that the power consumed by the product, P=V×I, is kept constant.

  • Page 171: Constant Voltage (Cv) Mode Operation

    Appendix | Operating Area Constant voltage (CV) mode operation In CV mode, the product sinks current so that the voltage at the load input end of the product is constant. Constant voltage mode operation When the product is used in CV mode, the product operates as a constant voltage load (shunt regulator) as shown in the following figure.
  • Page 172 Appendix | Operating Area Transition of the operating point: Overcurrent protection (OCP) operation Constant current line Operating area (OCP setting) OCP trip point Constant voltage line (constant voltage setting) Logarithmic scale Input current (A) We assume that OCP setting I is smaller than current I at point N and denote the voltage of the con- stant voltage power supply as V...

  • Page 173: Operating Area Of Each Model

    Appendix | Operating Area Operating area of each model Operating area of the PLZ1005WH2 Operating area where specifications are guaranteed 1000 Operating area where specifications are guaranteed Actual operating area Actual operating area Approx. 1.5 Approx. 1.5 Low voltage area Logarithmic axis Linear axis Input current (A)
  • Page 174 Appendix | Operating Area Operating area of the PLZ12005WH2 Operating area where specifications are guaranteed 1000 Operating area where specifications are guaranteed Actual operating area Actual operating area Approx. 1.5 Approx. 1.5 1000 Low voltage area Logarithmic axis Linear axis Input current (A) Input current (A) Operating area of the PLZ20005WH2...

  • Page 175: Opp Operation

    Appendix OPP Operation This section explains the current limit and response time until OPP is activated in the voltage and current waveforms when OPP is activated. Current limit in relation to the voltage This product can capture the power instantaneously even when the load power is exceeding the rated power until OPP is activated.

  • Page 176: Response Time

    Appendix | OPP Operation Response time The OPP response time varies depending on the amplitude of the load power and the amplitude of the load current exceeding the OPP setting. The following graph shows the relationship between the duration of time until OPP (Limit) is activated and the DC INPUT terminal voltage in CC mode.

  • Page 177: Waveform

    Appendix | OPP Operation Waveform The following figures show the waveforms when the action to be taken when OPP is activated is set to Limit (OPPL). (for PLZ2005WH2)  Load power 11 300 W Operation mode: CC DC INPUT terminal voltage: 400 V Load current Time (2 ms/DIV) ...

  • Page 178: Propagation Delay For External Control

    Appendix Propagation Delay for External Control The following figure shows the propagation delays of the changes in the load current with respect to exter- nal control and the changes in the current monitor voltage with respect to changes in the load current. ...

  • Page 179: Operating Range During Parallel Operation

    Appendix Operating Range during Parallel Operation The operating range during parallel operation using the same model is shown for each operation mode. CC mode  Operating range Number of PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 slaves 0 A to 40 A 0 A to 80 A 0 A to 160 A 0 A to 480 A...
  • Page 180 Appendix | Operating Range during Parallel Operation CV mode  Operating range Number of slaves All models 1 to 4 10 V to 1 000 V CP mode  Operating range Number of PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2 slaves 0 W to 2 kW 0 W to 4 kW 0 W to 8 kW 0 W to 24 kW...

  • Page 181: Options

    Options This product has the following options. For information about options, contact your Kikusui agent or distributor. Parallel operation signal cable kit This kit contains a signal cable for performing parallel operation on the PLZ-5WH2 series. Model Cable length PC01-PLZ-5W Approx.

  • Page 182: Gpib Converter (Pia5100)

    Appendix | Options GPIB converter (PIA5100) This converter converts RS232C or USB of the product to GPIB, enabling connection of a remote control- ler using GPIB. Perform the connection as shown below. Remote control device RS232C or USB PIA5100 PLZ-5WH2 DC OUT (5V) GPIB The GPIB communication specifications are as follows.

  • Page 183: Rack Mount Bracket

    Appendix | Options Rack mount bracket These are rack mounting options. Appropriate Model Model Description PLZ1005WH2 KRB3-TOS For EIA inch racks PLZ2005WH2 KRB150-TOS For JIS millimeter racks PLZ4005WH2 PLZ12005WH2 KRB9 For EIA inch racks KRB400-PCR-LE For JIS millimeter racks PLZ20005WH2 KRB13 For EIA inch racks KRB600...
  • Page 184 Appendix | Options  PLZ20005WH2 KRB600 KRB13 Unit: mm (inches) Preparation for rack mount bracket attachment To attach the product’s rack mount bracket, remove components such as the handle, legs, and casters. For information on rack mounting, see the operation manual of the rack mount bracket. We recommend that you keep all pieces that you remove from the product.
  • Page 185 Appendix | Options Unfasten the two screws, and remove the entire handle. While pulling down the rubber feet (four locations) of the bottom panel, loosen their screw pin with a screwdriver and remove the feet. Unfasten the internal pins from the rubber feet (four locations) of the side panel using a flat-blade screwdriver, and then remove the feet.

  • Page 186: Troubleshooting

    If none of the items apply to your case, we recommend that you initialize the product to its factory default set- tings 137). If following the remedy does not solve your problem, contact your Kikusui agent or distributor.  Nothing appears on the display when the POWER switch is turned on.
  • Page 187 Appendix | Troubleshooting  The load cannot be turned on. Check Possible cause Remedy A sequence is in opera- The load cannot be turned Wait for the sequence operation to finish. tion. on manually when a Abort the sequence by pressing the Abort key sequence is in operation.

  • Page 188: Index

    Index ABC preset memories..........75 factory default settings ........132 accessories..............3 factory default settings, restoring ......134 alarm firmware version............143 occurrence ..............54 Function keys .............. 26 type .................48 alarms clearing..............54 GPIB converter............182 ARB mode ..............37 arbitrary I-V characteristics mode ........37 humidity range............155 battery replacement ...........144 beep sound ..............130 I MON OUT ............11...
  • Page 189 OPPL................51 troubleshooting ............186 OPPT ................51 overcurrent protection ..........50 overhaul ..............144 undervoltage protection ..........52 overpower protection...........51 updating..............142 USB ..........11 UVP ................52 panel operation ............25 UVPL ................52 panel settings at startup ..........127 UVPT ................
  • Page 190 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.

This manual is also suitable for:

Plz1005wh2Plz2005wh2Plz4005wh2Plz12005wh2Plz20005wh2

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