Kikusui PLZ-4WH Series User Manual
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Kikusui PLZ-4WH Series User Manual

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User's Manual
PLZ-4WH Series Electronic Load
PLZ164WH
PLZ334WH
PLZ1004WH
PART NO. IB021853
Apr. 2011
Installation and
Preparation
Basic Functions
Advanced Operations
Sequences
External Control and
Master-Slave Control
Remote Control
Maintenance
Specifications
1
2
3
4
5
6
7
8
App

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Summary of Contents for Kikusui PLZ-4WH Series

  • Page 1 PART NO. IB021853 Apr. 2011 Installation and Preparation Basic Functions Advanced Operations User’s Manual Sequences PLZ-4WH Series Electronic Load External Control and Master-Slave Control PLZ164WH Remote Control PLZ334WH PLZ1004WH Maintenance Specifications...

  • Page 2: About Operation Manual

    • Setup Guide The setup guide is intended for first-time users of the PLZ- 4WH series. It gives an overview of the PLZ-4WH series, connecting procedures, safety precautions, etc. Please read through and understand this guide before operating the product.

  • Page 3: Safety Symbols

    Notations used in this manual Safety Symbols For the safe use and safe maintenance of this product, the • The PLZ164WH Electronic Load is also referred to as the following symbols are used throughout operation manual and PLZ164WH, the PLZ334WH Electronic Load is also on the product.

  • Page 4: Safety Precautions

    Service • The rear panel may become hot during operation. If you • Kikusui service engineers will perform internal service of the touch it, you may burn yourself. product. If the product needs adjustment or repairs, contact your Kikusui distributor or agent.

  • Page 5: Precautions About The Installation Location

    Product Overview Location You must observe the following precautions when installing The PLZ-4WH Series Electronic Load is a multifunctional the product. system designed to offer the highest levels of reliability and safety. The electronic load contains a stable and high- •...

  • Page 6: What Is An Electronic Load

    If you use the timer so that the load turns off after a specified amount of time, you can PLZ-4WH Series measure the closed-circuit voltage after a specified time has elapsed since the start of battery discharge (voltage Voltage measurement).

  • Page 7: Table Of Contents

    Contents Configuring CP mode 39 Switching 40 Setting the switching level 40 Setting the switching interval 41 About Operation Manual 2 Turning the switching function on and off 41 Safety Symbols 3 Slew Rate 42 Notations used in this manual 3 Setting procedure 42 Safety Precautions 4 Soft Start 43...
  • Page 8 When sequences cannot be executed 82 What gets calibrated? 118 Preparation 119 External Control and CC Mode Calibration (Calibration numbers 1, 2, and 3) 120 Parallel Operation CV Mode Calibration (Calibration numbers 4 and 5) 122 External Control 84 Ending Calibration 124 Precautions for high-speed load simulations Troubleshooting 125 About the EXT CONT connector 86...
  • Page 9 Search by Topic →"Checking the Package Contents" p. 14 • What accessories are included in the package? Preparation →"Precautions about the Installation p. 5 • The installation space is limited, so I want to Location" check the installation conditions. →"Connecting the Power Cord" p.
  • Page 10 Front Panel Display 31 32 H 16.5A 650V 0.0000 0.00 C . C 0.00 0 : 06 : 23 0.0000 264.00 mA/ µ s SLEWRATE 26 27 19 18 17 16 PLZ164WH/ PLZ334WH (Example: PLZ334WH) PLZ1004WH Name Function POWER switch Flip the switch to the ( ) side to turn the power on.
  • Page 11 Name Function Rotary knob Used to make selections and change settings. p. 30 Up, down, left, and right keys. – CURSOR INS key Inserts a step (sequence editing). – DEL key Deletes a step (sequence editing). – PREV key Returns to the previous screen (menu settings). –...
  • Page 12 Rear Panel PLZ164WH/ PLZ334WH PLZ1004WH Name Function FCS/ OFS Variable resistor used to adjust the full scale and offset settings of the PLZ- p. 97 4WH with respect to the input value of the external control source. EXT CONT External control connector p.

  • Page 13: Installation And Preparation

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

  • Page 14: Checking The Package Contents

    When you receive the product, check that all accessories are included and that the accessories have not been damaged during transportation. If any of the accessories are damaged or missing, contact your Kikusui agent or distributor. We recommend that you keep all packing materials, in case the product needs to be transported at a later date.

  • Page 15: Attachment To The Rack Mount Frame

    Attachment to the rack mount frame Before assemble the unit to the rack mount frame, remove the handle and the feet. As for the instruction of mount assembly, please refer to the instruction manual of KRA series. Install the suitable support angles applying to the used rack system to support the instrument. In case the unit is disassembled from the rack mount, it is recommended that all the removed parts are kept in the storage.

  • Page 16: Connecting The Power Cord

    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 an appropriate power cord is difficult, consult your Kikusui agent or distributor.

  • Page 17: Turning The Power On

    Turning the Power On Turning the POWER switch on If the POWER switch is turned on for the first time after purchasing the PLZ-4WH, the PLZ- 4WH starts up using factory default settings. For all other cases, the PLZ-4WH starts up using the settings that existed when the POWER switch was turned off the last time.

  • Page 18: When The Plz-4Wh Does Not Start Properly

    When the PLZ-4WH does not start properly This section introduces what measures you can take when the PLZ-4WH does not start properly. If following the remedy shown here does not solve the problem, contact your Kikusui agent or distributor. Nothing is displayed.

  • Page 19: Load Wiring

    30 °C or greater, or when wires are bundled together and little heat is radiated. Nominal Cross- AWG (Reference Cross- Kikusui- Allowable Current Sectional Area Recommended Sectional Area) [mm [A] (Ta = 30°C)

  • Page 20: Methods For Ensuring Stable Operation

    Methods for Ensuring Stable Operation When you use the PLZ-4WH at a high response speed, it is important to reduce the inductance of the load wiring and configure the response speed setting appropriately. If the conditions are not configured appropriately, oscillation and other forms of operational instability may occur.

  • Page 21: Optimizing The Response Speed

    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. Keep the wire short 100 cm or less Device PLZ-4WH Series under test Electronic Load – –...

  • Page 22: Do Not Apply Excessive Voltages To The Load Input Terminals

    Connecting the electronic load to the DUT with the polarities reversed can result in the flow CAUTION of excessive current and damage to the DUT and the electronic load. Connect each load input terminal to the terminal on the DUT with the same polarity. Device PLZ-4WH Series ≤650 Vdc under test Electronic Load H 8.25A 650V 0.00...

  • Page 23: Connecting To The Load Input Terminals

    Connecting to the Load Input Terminals The PLZ-4WH has load input terminals on both its front and rear panels. The specifications of the product are for the load input terminals on the rear panel. Possible electric shock. WARNING • Do not touch the load input terminals when the output is turned on. •...
  • Page 24 Connecting to the Load Input Terminals Connection procedure Turn the POWER switch off. Make sure that the output of the DUT is off. Attach the lock plates to the load input terminals on the rear panel. After you attach the lock plates once, there is no need to remove them. Insert the lock plates into the slots by the terminals.
  • Page 25 Connecting to the Load Input Terminals Use the lock plates to fix the load input terminal cover to the rear panel. To fix the cover in place, insert the lock plate pins into the holes on the sides of the cover.

  • Page 26: Connecting To The Load Input Terminals On The Front Panel

    Connecting to the Load Input Terminals Connecting to the load input terminals on the front panel The load input terminals on the front panel enable you to easily connect the DUT to the PLZ- 4WH. The specifications of the product are for the load input terminals on the rear panel. To avoid electric shock, attach insulation caps to the crimping terminals.

  • Page 27: Remote Sensing

    • If a wire is disconnected during remote sensing, the PLZ-4WH and the DUT may be damaged. Make sure that wire connections are secure. Remote sensing terminals White PLZ-4WH Series Twist Electronic Load – – Unlike the load wires, there is no need to consider the current capacity for the wires that you connect to the sensing terminals.
  • Page 28 Remote Sensing PLZ-4WH...

  • Page 29: Basic Functions

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

  • Page 30: Panel Operation Basics

    Panel Operation Basics You can perform operations from the operation panel on the front of the PLZ-4WH. The PLZ- 4WH produces a beeping sound to notify you when you make an invalid selection or perform an invalid key operation. Function of the LOAD key If you press LOAD when the load is turned off, the LOAD LED lights, and the load turns on.

  • Page 31: Turning The Load On And Off

    Turning the Load On and Off The load is on when current is flowing through the PLZ-4WH or when the PLZ-4WH is supplying current. The load is off when current is not flowing through the PLZ-4WH and the PLZ-4WH is not supplying current. You can turn the PLZ-4WH’s load on and off by pressing LOAD.

  • Page 32: Turning The Load Off

    Turning the Load On and Off Turning the load off Press LOAD to turn off the load. Turn off the output of the DUT. If you are using a relay, electromagnetic switch, or other device in the connection between the load input terminals and the output terminals of the DUT, turn the device off.

  • Page 33: Operation Modes

    Operation Modes The following four operation modes are available on the PLZ-4WH. Constant voltage mode can be added to constant current mode or constant resistance mode (+CV). • Constant current mode (CC mode, CC+CV mode) • Constant resistance mode (CR mode, CR+CV mode) •...

  • Page 34: Constant Current Mode (Cc Mode)

    Constant Current Mode (CC mode) In constant current mode (CC mode), you set the current [A]. You can also add constant voltage mode (+CV mode) to constant current mode (CC mode). Configuring CC mode Select the operation mode, and set the current. LOAD LOCK MODE...

  • Page 35: Configuring Cc+Cv Mode

    Constant Current Mode (CC mode) Configuring CC+CV mode CC+CV mode is constant current mode (CC mode) with CV mode added to it. You can add CV mode even while the load is on. LOAD LOCK MODE SET / VSET RANGE SLEW RATE OPP / OCP RECALL...

  • Page 36: Constant Resistance Mode (Cr)

    Constant Resistance Mode (CR) In constant resistance mode (CR mode), you set the inverse of the resistance, the conductance [S]. You can also display the resistance value converted from the conductance value. Conductance [S] = 1/resistance [Ω] You can also add constant voltage mode (+CV mode) to constant resistance mode (CR mode).

  • Page 37: Configuring Cr+Cv Mode

    Constant Resistance Mode (CR) Turn the rotary knob to set the conductance. The CR mode settings are complete. When you press LOAD, the LOAD LED lights, and the PLZ-4WH starts supplying current. You can change the conductance even when the load is Configuring CR+CV mode CR+CV mode is constant resistance mode (CR mode) with CV mode added to it.

  • Page 38: Constant Voltage Mode (Cv Mode)

    Constant Voltage Mode (CV mode) In constant voltage mode (CV mode), you set the voltage [V]. Configuring CV mode Select the operation mode, and set the voltage. LOAD LOCK MODE SET / VSET RANGE SLEW RATE OPP / OCP RECALL ENTER LOAD + CV...

  • Page 39: Constant Power Mode (Cp Mode)

    Constant Power Mode (CP mode) In constant power mode (CP mode), you set the power [W]. Configuring CP mode Select the operation mode, and set the power. LOAD LOCK MODE SET / VSET RANGE SLEW RATE OPP / OCP RECALL ENTER LOAD + CV...

  • Page 40: Switching

    Switching The switching function is used to switch between two preset load currents. Switching can be performed in CC mode and CR mode. Switching is suitable for transient-response testing of regulated DC power supplies and similar devices. To use the switching function, you need to set a switching level and a switching interval and then turn on the switching function.

  • Page 41: Setting The Switching Interval

    Switching Setting the switching interval You can set the switching interval by specifying a frequency and duty ratio or by specifying an amount of time. Setting the switching interval by specifying a frequency and duty ratio Set the frequency and the duty ratio (the ratio of HIGH to LOW). It does not matter whether you set the frequency or the duty ratio first.

  • Page 42: Slew Rate

    Slew Rate You can use the slew rate to set the speed at which the current is changed. The slew rate is valid in constant current mode (CC mode) and constant resistance mode (CR mode). Use the slew rate when you are using the switching function and at other times when the current is being changed dramatically.

  • Page 43: Soft Start

    Soft Start You can use the soft start function to raise the input current gradually. The soft start function is valid in constant current mode (CC mode). Soft start is useful when: • The load is turned on at the same time that voltage is applied to the load input terminals. •...

  • Page 44: Short

    Be sure to use a dedicated driver circuit to drive a relay for high current. Please supply the dedicated driver circuit yourself. PLZ-4WH Series Relay EXT CONT connector on the rear panel <19>...

  • Page 45: Locking The Keys

    Locking the Keys You can lock the PLZ-4WH’s keys to prevent mistaken operations such as changes to the settings and overwriting of memory entries and sequence data. The PLZ-4WH has two types of key locks. The factory default key lock disables most of the keys but leaves some keys enabled.

  • Page 46: Switching From Remote Mode To Local Mode

    Switching from Remote Mode to Local Mode Remote icon H8.25A 650V 0.0000 0.00 0.00 0.5000 132.00 mA/µs SLEWRATE 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. PLZ-4WH...

  • Page 47: Advanced Operations

    Advanced Operations This chapter explains ABC preset memory, setup memory, protection functions, and the menu.

  • Page 48: Memory Types

    Memory Types The PLZ-4WH is equipped with both preset and setup memory. Preset memory You can save fundamental settings (current, conductance, voltage, and power) that are used often in preset memory. Because you can recall saved settings just by pressing a key, this feature is very useful when you want to switch between three different types of output in order.

  • Page 49: Abc Preset Memory

    ABC Preset Memory You can save preset memory entries to A, B, or C. In A, B, and C, you can save fundamental settings for each range of each operation mode. You can save and load preset memory entries regardless of whether the load is on or off. The protection-function-activation values are not saved.

  • Page 50: Recalling Abc Preset Memory Entries

    ABC Preset Memory Recalling ABC preset memory entries There are two methods of recalling the preset memory, “SAFETY” and “DIRECT.” SAFETY You can recall a memory entry after first checking its contents on the display. DIRECT The settings of the setup memory entry are applied immediately. The factory default setting is “SAFETY.”...

  • Page 51: Setup Memory

    Setup Memory You can save up to 100 setup memory entries (0 to 99). The current settings of the items listed below are saved to the setup memory. You can add a memo of up to 15 characters in length to each memory entry. You can recall a saved memory entry by specifying its number. •...

  • Page 52: Recalling Setup Memory Entries

    Setup Memory Recalling setup memory entries You can save almost all the settings, including the operation mode and range, to the setup memory. Please be aware that if the saved operation mode and range are different from the current settings, they will change. H 8.25A 650V 0.00 0.000...

  • Page 53: Protection Functions

    Protection Functions The protection functions can be used to automatically turn off the load or limit the current to prevent the PLZ-4WH’s internal circuitry from being damaged and to protect the DUT. An alarm occurs when the protection functions are activated. When an alarm occurs, the load turns off (or the current is limited), and the ALARM STATUS pin (pin 16) of the EXT CONT connector on the rear panel turns on (open-collector output from a photocoupler).
  • Page 54 Protection Functions When the remote sensing function is being used The sensing point of the remote sensing function is the other end of the wire connected to the p. 27 remote sensing terminal on the PLZ-4WH rear panel. Connect the end of this wire to the output of the DUT that you want to sense.

  • Page 55: Clearing Alarms

    Protection Functions Make sure that the load is off. If the LOAD LED is lit, press LOAD to turn the load off. Press OPP/OCP until OPP is highlighted on the display. The OPP/OCP key lights. Pressing OPP/OCP switches between OCP and OPP. Turn the rotary knob to set the overpower-protection-activation value.

  • Page 56: Response Speed

    Response Speed The PLZ-4WH operates by detecting the input current or voltage and controlling it through negative feedback. You can ensure stable operation by reducing the response speed. The response speed can be specified in CV mode and CR mode. Make the wiring as short as possible, and twist it.

  • Page 57: Elapsed Time Display And Auto Load-Off Timer

    Elapsed Time Display and Auto Load-Off Timer Two convenient functions are available for the discharge tests of batteries. • You can measure the time from the start of discharge to the cutoff voltage. • You can measure the closed-circuit voltage after a specified time has elapsed since the start of discharge (voltage measurement).

  • Page 58: Menu

    Menu In the menu screen, you can set the PLZ-4WH’s operating conditions and configure functions. Menu Setu 2. Confi uration 3. Calibration 4. Model Info Menu screen (item 1) display PREV NEXT Make sure that the load is off. If the LOAD LED is lit, press LOAD to turn the load off. Press MENU (SHIFT+SET/VSET).
  • Page 59 Menu List of menu items (the factory default settings are underlined) Item 1 Item 2 Item 3 Settings Description 1.Setup 1.Function Soft Start 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, Soft start time 50 ms, 100 ms, 200 ms Count Time OFF: Not displayed, ON: Displayed Elapsed time display...

  • Page 60: Factory Default Settings (Initialization)

    Factory Default Settings (Initialization) The PLZ-4WH’s backup function saves the current settings, menu settings, and memory entries (ABC and preset) even after the power switch is turned off. You can initialize the PLZ-4WH to set all of its settings to their factory defaults. Turn the POWER switch off ( ).

  • Page 61: Sequences

    Sequences Sequences This chapter explains sequence function.

  • Page 62: Sequence Function

    Sequence Function The sequence function automatically executes instructions specified in advance one operation at a time. A variety of waveform simulations can be executed through the specification of a sequence of operations (steps). The sequence that you create is saved by the backup function even when the power is turned off.

  • Page 63: Common Sequence Editing Operations

    Common Sequence Editing Operations This section describes the sequence editing operations that are common to all edit screens, such as moving the cursor within an edit screen, selecting items, entering values and characters, and turning pages. Please familiarize yourself with the functions of each key. Moving the cursor On the edit screen, you can change the value of the item at the position of the blinking cursor.

  • Page 64: How Normal Sequences Work

    How Normal Sequences Work Normal sequences are composed of two elements: programs and steps. Programs are groups of executable units called steps. The steps in a program are executed in ascending order, starting from step 001. A single execution of a program is completed after the program’s last step has been executed.
  • Page 65 Editing Programs in a Normal Sequence To configure a program, select one of four operation modes (CC, CR, CV, or CP). You can execute the same program repeatedly. You can also continue program execution by linking a program to another program. Linked programs can only be executed if they have the same operation mode and range.

  • Page 66: Editing Steps In A Normal Sequence

    Editing Steps in a Normal Sequence After you finish configuring the program settings, press NEXT (SHIFT+ ) to configure the step settings. You can specify one execution condition per step. One step corresponds to one executed operation in the executed waveform. Adding steps When you press INS (SHIFT+ ), a step is inserted above the currently highlighted step.

  • Page 67: Deleting Steps

    Editing Steps in a Normal Sequence Step-execution pattern Set the execution pattern. 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...

  • Page 68: Sequence Example (Normal Sequence)

    Sequence Example (Normal Sequence) This section explains how to use the operation panel to enter the following example sequence. This section provides an example of how to execute a sequence with two programs on the PLZ164WH. • Program 1 Memo: PROGRAM1, Mode: CC, Loop: 1, Chain: Program 2 Step Setting Step Execution Time...

  • Page 69: Editing Program 1

    Sequence Example (Normal Sequence) Editing program 1 In this example, program 1 will be created first and then program 2. You can edit the programs in any order that you like. It is OK to create program 2 first and then create program Memo Press EDIT (SHIFT+A).

  • Page 70: Setting The Steps Of Program 1

    Sequence Example (Normal Sequence) Setting the steps of program 1 Set the current, execution time, and execution pattern of each step in program 1. The various items are set on separate screens. In this example the settings will be configured in the following order: current setting, execution time, and then execution pattern.
  • Page 71 Sequence Example (Normal Sequence) Setting the execution pattern Memo Press to move the cursor to step 001. You can move the cursor SEQ EDIT LOAD RAMP TRIG PAUSE by pressing 001 ON ON OFF OFF For step 1, set LOAD and RAMP to ON. 002 ON OFF OFF OFF 003 OFF OFF ON OFF Press PREV (SHIFT+...

  • Page 72: Editing Program 2

    Sequence Example (Normal Sequence) Editing program 2 After you finish editing program 1, edit program 2. Memo Press PREV (SHIFT+ ) three times to display the You can move the cursor program editing screen. by pressing Memo : Program1 Mode : NCC To exit the sequence e : 8.25A, 650V...

  • Page 73: Setting The Steps Of Program 2

    Sequence Example (Normal Sequence) Setting the steps of program 2 The settings will be configured in the same order as they were for program 1. Memo Set the currents for steps 1 to 3. You can move the cursor SEQ EDIT CC SET Set the current for step 1 to 8.1 A, for step 2 to 3 A, and for by pressing...

  • Page 74: How Fast Sequences Work

    How Fast Sequences Work The operation modes that you can execute fast sequences in are constant current (CC) mode and constant resistance (CR) mode. Just like normal sequences, fast sequences are composed of two elements: programs and steps. Programs are groups of executable units called steps. When program 11 is executed, its steps are executed in order, starting with step 0001.
  • Page 75 Editing a Fast-Sequence Program To configure a fast-sequence program, you first need to set the operation mode to CC mode or CR mode. The program is executed the specified number of times. Unlike with normal sequences, you cannot chain programs to be executed after the first program.

  • Page 76: Editing Steps

    Editing Steps in a Fast Sequence After you finish configuring the program settings, press NEXT (SHIFT+ ) to configure the step settings. You can specify one execution condition (current and trigger output) per step. One step corresponds to one executed operation in the executed waveform. The minimum number of steps in a fast sequence is 3.
  • Page 77 Editing Steps in a Fast Sequence Increasing the magnification in the step setting monitor screen You can increase the magnification that the steps are monitored at. p. 77 Press to move the cursor to the magnification, and use the rotary knob to change the magnification.

  • Page 78: Sequence Example (Fast Sequence)

    Sequence Example (Fast Sequence) This section explains how to use the operation panel to enter the following example sequence. This section provides an example of how to execute a sequence on the PLZ164WH that will simulate the waveform shown in the figure below. •...

  • Page 79: Editing Program 11

    Sequence Example (Fast Sequence) Editing program 11 Memo Press EDIT (SHIFT+A). You can move the cursor The program editing screen appears. by pressing : 11 Memo : Mode : FCC To exit the sequence e : 8.25A , 65V Set the program number to 11. editing screens, press Loop : 0003 PREV...

  • Page 80: Setting The Steps Of Program 11

    Sequence Example (Fast Sequence) Setting the steps of program 11 Set the current and trigger output of each step in program 11. In this example the current will be set first, followed by the trigger output. C u r r e n t S t e p n u m b e r 6.0000 STEP:0014...

  • Page 81: Executing, Pausing, And Stopping Sequences

    Executing, Pausing, and Stopping Sequences After you have finished configuring the sequence, execute it. Executing sequences H 8.25A 65V 0.00 0.000 SEL PROG NO PROG No. 1 0.000 ram1 0.000 No. 1:Pro ram1 Make sure that the switching and short functions are off. Make sure that the SW ON key light is off and that the short icon is not displayed.

  • Page 82: Stopping A Sequence

    Executing, Pausing, and Stopping Sequences Stopping a sequence If you press RUN/STOP (SHIFT+B) while a sequence is being executed, the sequence will stop. If you press RUN/STOP (SHIFT+B) again after stopping the sequence, the sequence will start over again from the beginning of the selected program. When sequences cannot be executed You cannot execute programs together in a sequence if their modes and ranges do not match.

  • Page 83: External Control And Parallel Operation

    External Control and Parallel Operation This chapter explains external control and Parallel Operation.

  • Page 84: External Control

    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.

  • Page 85: Precautions For High-Speed Load Simulations

    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. PLZ-4WH Series External control terminal Attach a ferrite core...

  • Page 86: About The Ext Cont Connector

    Keep the protective socket in a safe place so that you can attach it to the EXT CONT connector when the connector is not in use. If the protective socket is damaged or lost, contact your Kikusui agent or distributor. Protective socket for J1 [84-49-0071] Possible electric shock.

  • Page 87: Ext Cont Connector Pin Arrangement

    External Control EXT CONT connector pin arrangement External control connector EXT CONT connector pin number Pin No. Signal Name Description EXT R/V CONT For controlling CC, CR, CP, and CV modes through external voltage. Voltage Control External input voltages in the range of 0 V to 10 V correspond to 0 % to 100 % of the rated current (CC mode), rated power (CP mode), or rated voltage (CV mode).

  • Page 88: Control Using An External Voltage

    Controlling Constant Current Mode (CC Mode) Externally You can use an external voltage or an external resistance to control CC mode externally. The input current changes proportionally to the external voltage or external resistance. To prevent damage from noise, use twisted signal wires. By properly adjusting the OFS and FSC variable resistors on the rear panel, you will be able p.

  • Page 89: Control Using An External Resistance

    Controlling Constant Current Mode (CC Mode) Externally Doing so enables the external control of CC mode. Turn the power switch off and then on again. The menu settings are applied. Control using an external resistance When you connect an external resistance of 0 Ω to 10 kΩ to the PLZ-4WH, the input current varies proportionally or inversely to the external resistance.

  • Page 90: Control Using An External Voltage

    Controlling Constant Resistance Mode (CR Mode) Externally You can use an external voltage or an external resistance to control CR mode externally. The resistance changes proportionally to the external voltage or external resistance. To prevent damage from noise, use twisted signal wires. By properly adjusting the OFS and FSC variable resistors on the rear panel, you will be able p.

  • Page 91: Control Using An External Resistance

    Controlling Constant Resistance Mode (CR Mode) Externally From the menu, select “2. Configuration” > “3.External” > “Control” > p. 58 “V.” Doing so enables the external control of CR mode. Turn the power switch off and then on again. The menu settings are applied. Control using an external resistance When you connect an external resistance of 0 Ω...

  • Page 92: Control Using An External Voltage

    Controlling Constant Power Mode (CP Mode) Externally You can use an external voltage or an external resistance to control CP mode externally. The power changes proportionally to the external voltage or external resistance. To prevent damage from noise, use twisted signal wires. By properly adjusting the OFS and FSC variable resistors on the rear panel, you will be able p.

  • Page 93: Control Using An External Resistance

    Controlling Constant Power Mode (CP Mode) Externally Doing so enables the external control of CP mode. Turn the power switch off and then on again. The menu settings are applied. Control using an external resistance When you connect an external resistance of 0 Ω to 10 kΩ to the PLZ-4WH, the power varies proportionally or inversely to the external resistance.

  • Page 94: Control Using An External Voltage

    Controlling Voltage Mode (CV mode and the +CV modes) You can use an external voltage or an external resistance to control CV mode externally. The voltage changes proportionally to the external voltage or external resistance. You can use an external voltage to control the +CV modes externally. The voltage changes proportionally to the external voltage.
  • Page 95 Controlling Voltage Mode (CV mode and the +CV modes) Connect the external voltage across pins 1 and 3 or pins 5 and 6 of the EXT CONT connector. If you are controlling the PLZ-4WH in the +CV modes, be sure to connect the external voltage across pins 5 and 6.

  • Page 96: Control Using An External Resistance

    Controlling Voltage Mode (CV mode and the +CV modes) Control using an external resistance You cannot use an external resistance to control the +CV modes. When you connect an external resistance of 0 Ω to 10 kΩ to the PLZ-4WH, the voltage varies proportionally or inversely to the external resistance.
  • Page 97 Making Sure That the Input Current Changes Proportionally to External Changes By properly adjusting the OFS (to adjust the current offset) and FSC (to adjust the maximum current) variable resistors on the rear panel, you will be able to control the input current proportionally to the external voltage or resistance.

  • Page 98: Turning The Load On And Off Through External Control

    Turning the Load On and Off through External Control You can use an external control signal to turn the load on and off, and you can check whether the load is on or off. Signal Input for turning the load on and off To turn the load on and off using an external contact, you need to apply an external signal across pin 7 and 12 of the EXT CONT connector.

  • Page 99: Using A Trigger Signal To Control The Plz-4Wh

    Using a Trigger Signal to Control the PLZ-4WH The application of a trigger signal during sequence execution unpauses the PLZ-4WH. Use a trigger signal when you want to synchronize the PLZ-4WH with an external device. Trigger signal input Apply a voltage signal with a maximum allowable voltage of 5 V and a pulse width of 10 µs or more across pins 11 and 12 of the EXT CONT connector.

  • Page 100: Controlling The Current Range Externally

    Controlling the Current Range Externally You can use an external control signal to control the current range. You can use the range status output to monitor the present state of the range. You cannot control the voltage range. Current Range Control Input Status Output RANGE...

  • Page 101: Alarm Signal

    Alarm Signal You can use an external control signal to activate the PLZ-4WH’s alarm. You can also use the alarm status output to monitor the alarm status (whether or not it is activated). Alarm input Apply an external signal to pins 10 and 12 of the +5 V EXT CONT connector.

  • Page 102: Monitor Signal Output

    Monitor Signal Output Trigger signal output The trigger signal can be used as a synchronization signal for monitoring the waveform of the switching operation on an oscilloscope. It can also be used to synchronize with an external device during sequence execution. The trigger signal is output from the TRIG OUT connector (BNC connector) on the PLZ-4WH front panel.

  • Page 103: Voltage Monitor Output

    Monitor Signal Output Voltage monitor output The signal is output from the V MON OUT connector on the PLZ-4WH front panel and across pins 4 and 6 (pin 6 is common) of the EXT CONT connector. To avoid damaging the product, observe the following precaution. Pin 6 of the EXT CONT CAUTION connector is connected to the negative load input terminal.

  • Page 104: Parallel Operation

    Parallel Operation The PLZ-4WH series can be connected to multiple electronic loads in parallel to increase the total current and power capacities. During parallel operation, set one unit as the master unit. The master unit can control all the electronic loads that it is connected to in parallel. The master unit displays the total current and total power for all the electronic loads that it is connected to in parallel.
  • Page 105 A protective socket is attached to the PARALLEL connector when the PLZ-4WH is in the factory default state. Store this protective socket in a safe place so that it can be used during independent operation. If it is damaged or lost, contact your Kikusui agent or distributor. Protective socket for J1 [84-49-0071] To avoid electric shock, observe the following precaution.
  • Page 106 Connections and Settings during Parallel Operation Using the Same Type of Electronic Loads Master unit – DC INPUT 1000W PARALLEL 150V 200A connector Load wiring Slave unit 1 – Flat cable DC INPUT PC01-PLZ-4W 1000W 150V 200A (option) – Slave unit 2 DC INPUT 1000W 150V...

  • Page 107: Performing Parallel Operation

    Performing Parallel Operation During parallel operation, the slew rate and response speed settings on the master unit are used. The maximum slew rate is the maximum value on the master unit. If a unit on which the response speed has been set to 1/1 is set as the master unit for parallel p.

  • Page 108: Ending Parallel Operation

    Performing Parallel Operation Ending parallel operation To end parallel operation and return to independent operation, turn all the units off, and then remove the flat cables. To return a slave unit to independent operation, from the menu, select “2.Configuration” > “1.Master/Slave”...

  • Page 109: Remote Control

    Remote Control Remote Control This chapter provides general explanation of the remote control function. details commands, Communication Interface Manual on the supplied CD-ROM.

  • Page 110: Overview

    RS232C connector when the connector is not in use. For safety, always attach the cover to the RS232C connector when the connector is not being used. If the cover is damaged or lost, contact your Kikusui agent or distributor. RS232C connector cover [P1-000-093] For the RS232C interface, from the menu, select “2.Configuration”...

  • Page 111: Contents Of The Included Cd-Rom

    Contents of the Included CD-ROM Put the included CD-ROM into the CD-ROM drive. A start window will appear momentarily. 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. •...

  • Page 112: Installing The Visa Library

    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-VISA is not required if NI-VISA or Agilent VISA is already installed.

  • Page 113: Installing The Application Software

    Contents of the Included CD-ROM Installing the application software The PLZ applications and samples include the following software. VPanel A simple virtual panel Monitor And Log Measures and logs current, voltage, and power Step Editor A sequence editor Memory Copy A setup-memory backup tool Load the accompanying CD-ROM into the CD-ROM drive.

  • Page 114: Command Details

    Command Details For details on commands, see the Communication Interface Manual on the supplied CD- ROM. The Communication 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.

  • Page 115: Maintenance

    Maintenance This chapter describes the maintenance procedures including cleaning, inspection, and calibration.

  • Page 116: Inspection

    Inspection To purchase accessories or options, contact your Kikusui agent or distributor. Cleaning the dust filter The dust filter is installed on the inside of the louver on the front panel. Periodically clean the filter to prevent clogging. • A clogged filter hinders the cooling of the inside of the PLZ-4WH, can cause malfunctions, CAUTION and can shorten the PLZ-4WH’s service life.

  • Page 117: Internal Inspection

    The exact timing varies depending on how the PLZ-4WH is used, but we recommend that you have the PLZ-4WH overhauled after about 10,000 hours of operation. An overhaul includes internal inspection and cleaning.To have the PLZ-4WH overhauled, please contact a Kikusui distributor or agent.

  • Page 118: Calibration

    Calibration The PLZ-4WH is calibrated properly when it is shipped, but we recommend that you calibrate it regularly to keep it operating at top performance. What gets calibrated? The current and voltage values are calibrated. The current values are calibrated for each of the three current ranges (L, M, and H). The voltage values are calibrated for each of the two voltage ranges (65 V and 650 V).

  • Page 119: Preparation

    Calibration Calibration numbers The numbers that appear in the calibration screen are the calibration numbers. Calibration 2. CC 3. CC Calibration number 4. CV 65V 5. CV 650V PREV NEXT Alarm If an alarm occurs during calibration, the PLZ-4WH produces an alarm sound, and the load turns off.

  • Page 120: Cc Mode Calibration (Calibration Numbers 1, 2, And 3)

    CC Mode Calibration (Calibration numbers 1, 2, and 3) Perform calibration on the Low, Mid, and then High range. For each item, start calibration at step A. Be sure to calibrate both offset and gain. Current Percentage Calibrated Items Range of the Full Internal reference voltage Measured Values...
  • Page 121 CC Mode Calibration (Calibration numbers 1, 2, and 3) Connect a constant-voltage power supply to the load input terminals, and apply 5 V. Set the power supply current to approximately +2 % to 5 % of the load device’s rated current. Press ENTER.

  • Page 122: Cv Mode Calibration (Calibration Numbers 4 And 5)

    CV Mode Calibration (Calibration numbers 4 and 5) within ±0.1 % of the value corresponding to 100 % of the full scale value (see the table of CC mode settings). Press ENTER. The load turns off automatically. The calibration of the low range current values is complete. Calibrating the mid range Calibrate the Mid range in the same way that you calibrated the Low range.
  • Page 123 CV Mode Calibration (Calibration numbers 4 and 5) Step E: Calibrate the offset values of the internal reference voltage for voltage settings and the measured values. to select “4. CV 65V.” Connect a CC power supply to the load input terminals, and supply 0.05 A.

  • Page 124: Ending Calibration

    Ending Calibration Press to set the cursor position of DAC REF, and then turn the rotary knob so that the input voltage is within ±0.05 % of the value corresponding to 100 % of the full scale value (see the table of CV mode settings).

  • Page 125: Troubleshooting

    If your problem does not correspond to any of the listed items, we recommend that you initialize the PLZ-4WH to its factory default settings. If you carry out the corrective action but the situation does not improve, contact your Kikusui distributor or agent. Symptom 1:Nothing appears on the display when the POWER switch is turned on.
  • Page 126 Troubleshooting Symptom 5:ALARM is activated. Check Item Possible Cause Remedy Location and Status of the Object Check Result Is the fan stopped? Overheat protection tripped. Immediately stop the use of the instrument and request repairs. Is the air intake or outlet Overheat protection tripped.

  • Page 127: Specifications

    Specifications This chapter contains the specifications and gives the dimensions of the PLZ-4WH.

  • Page 128: Ratings

    Specifications Unless specified otherwise, the specifications are for the following settings and conditions. • The warm-up time is 30 minutes (with current flowing). • TYP: These are typical values that are representative of situations where the PLZ-4WH operates in an environment with an ambient temperature of 23 °C. These values do not guarantee the performance of the PLZ-4WH.

  • Page 129: Constant Resistance (Cr) Mode

    Specifications Constant resistance (CR) mode Model PLZ164WH PLZ334WH PLZ1004WH Operating H range 10 S to 200 µS 1.65 S to 30 µS 3.3 S to 60 µS (100 mΩ to 5 kΩ) (606.06 mΩ to 33.333 kΩ) (303.03 mΩ to 16.666 kΩ) range M range 165 mS to 3 µS...

  • Page 130: Constant (Cp) Power Mode

    Specifications Constant (CP) power mode Model PLZ164WH PLZ334WH PLZ1004WH Operating H range 16.5 W to 165 W 33 W to 330 W 100 W to 1000 W range M range 1.65 W to 16.5 W 3.3 W to 33 W 10 W to 100 W L range 0.165 W to 1.65 W...

  • Page 131: Switching Mode

    Specifications Switching mode Model PLZ164WH PLZ334WH PLZ1004WH Operation modes CC and CR Duty cycle 5 % to 95 % in 1 % steps Frequency range 1 Hz to 4 kHz Frequency 1 Hz to 10 Hz 0.1 Hz resolution 10 Hz to 100 Hz 1 Hz 100 Hz to 1 kHz 10 Hz...

  • Page 132: Soft Start

    Specifications Soft start Model PLZ164WH PLZ334WH PLZ1004WH Operation mode 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, 200 ms Selectable times Time accuracy ±(30 % of set +100 µs) The time it takes to shift from 10 % to 90 % of the rated current Response speed Model PLZ164WH...

  • Page 133: Sequence Function

    Specifications Sequence function Model PLZ164WH PLZ334WH PLZ1004WH Normal Operation modes CC, CR, CV, and CP sequence Maximum number of steps Step execution time 1 ms to 999 h 59 min Time resolution 1 ms for 1 ms to 1 min (setting range) 100 ms for 1 min to 1 h 1 s for 1 h to 10 h...

  • Page 134: Common Specifications

    Specifications Common specifications Analog External Control (EXT CONT connector) Load on/off control input Turn on the load with a high (or low) CMOS level signal Logic level switchable. The internal circuit is pulled up to 5 V by a 10 kΩ resistor. Range switch input Switch ranges L, M, and H using a 2-bit signal Trigger input...

  • Page 135: General Specifications

    Specifications General specifications Model PLZ164WH PLZ334WH PLZ1004WH Input voltage range 100 Vac to 240 Vac (90 Vac to 250 Vac), single phase, continuous Input frequency range 47 Hz to 63 Hz Power consumption 80 VAmax 90 VAmax 160 VAmax 140 Amax Inrush current 600 μA (100 Vac at 50 Hz;...

  • Page 136: Dimensions

    Specifications Dimensions Four M3 screw holes Maximum depth that screws can 4-φ30 (1.18) be inserted is 5 mm (0.20 inches). (Rubber foot diameter) 4-φ5 (0.20) (Four holes for attaching the rubber feet) 275 (10.83) 70 (2.76) 55 (2.16) MAX 470 (18.50) 214.5 (8.44) 400 (15.75) 30 (1.18)

  • Page 137: Appendix

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

  • Page 138: A Operating Area

    Operating Area As shown in the figure, the PLZ-4WH can be used within the area enclosed by L , the constant-voltage line defined by the rated voltage; L , the constant-power line defined by the rated power; L , the constant-current line defined by the rated current; and L , the constant- voltage line defined by the minimum operating voltage (the enclosed area is where specifications are guaranteed).

  • Page 139: How Constant Current (Cc) Mode Works

    The current is constant even when the voltage Constant-voltage varies. power supply PLZ-4WH Series Current I CC setting Transition of the operating point: overpower protection (OPP) In this example, we will assume that the PLZ-4WH is being used in constant current (CC) mode to test the load characteristic of a constant-voltage power supply.

  • Page 140: How Constant Resistance (Cr) Mode Works

    Voltage Constant-voltage power supply PLZ-4WH Series Current I Transition of the operating point: overpower protection (OPP) In this example, we will assume that the PLZ-4WH is being used in constant resistance (CR) mode to test the load characteristic of a constant-voltage power supply.
  • Page 141 Operating Area 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 decrease the resistance to increase the current, the current will not increase beyond point B. If you increase the resistance to decrease the input current, overpower protection (OPP) is cleared.

  • Page 142: How Constant Power (Cp) Mode Works

    Voltage × Constant-voltage × power supply PLZ-4WH Series Maximum rated current Current I Transition of the operating point: overcurrent protection (OCP) In this example, we will assume that the PLZ-4WH is being used in constant power (CP) mode to test the load characteristic of a constant-voltage power supply.
  • Page 143 Operating Area The load is turned off (no current flows). LOAD OFF The PLZ-4WH stops operating as a load. Point B The PLZ-4WH switches out of constant power (CP) mode. LIMIT Overcurrent protection (OCP) continues, and the PLZ-4WH operates as a constant-current load. Operation on segment GH If the voltage of the constant-voltage power supply is set to V3 and the power of the PLZ- →P...

  • Page 144: How Constant Voltage (Cv) Mode Works

    Voltage when the current varies. Constant-voltage power supply PLZ-4WH Series Current I Transition of the operating point: overpower protection (OPP) In this example, we will assume that the PLZ-4WH is being used in constant voltage (CV) mode to test the load characteristic of a constant-voltage power supply.
  • Page 145 Operating Area The load is turned off (no current flows). LOAD OFF The PLZ-4WH stops operating as a load. Point N The PLZ-4WH switches out of constant voltage (CV) mode. LIMIT Overpower protection (OPP) continues, and the PLZ-4WH operates as a constant-power load. Transition of the operating point: overcurrent protection (OCP) Constant current line Operating area...

  • Page 146: How Constant Current And Constant Voltage (Cc+Cv) Mode Works

    Setting CV operation The voltage is constant even when the current varies. PLZ-4WH Series Current I CC setting Transition of the operating point: overpower protection (OPP) In this example, we will assume that the discharge characteristic of a battery is being measured.
  • Page 147 Operating Area If the protection action is set to LIMIT, the PLZ-4WH sinks current as a constant-power load at point N. Even if you attempt to increase the current, it will not increase beyond point N. If you decrease the current, overpower protection (OPP) is cleared. The PLZ-4WH returns to constant current (CC) mode, and the operating point moves along segment MN.

  • Page 148: How Constant Resistance And Constant Voltage (Cr+Cv) Mode Works

    Setting CV operation The voltage is constant even when the current varies. PLZ-4WH Series Current I Transition of the operating point: overpower protection (OPP) In this example, we will assume that the discharge characteristic of a battery is being measured.
  • Page 149 Operating Area (OPP) is cleared. The PLZ-4WH returns to constant resistance (CR) mode, and the operating point moves along segment MN. The load is turned off (no current flows). LOAD OFF The PLZ-4WH stops operating as a load. Point N The PLZ-4WH switches out of constant resistance (CR) mode.

  • Page 150: Operating Areas Of Each Model

    Operating Area Operating areas of each model Operating areas of the PLZ164WH Operating area where specifications are guaranteed Operating area where specifications are guaranteed Actual operating area H range Actual operating area Low voltage area 8.25 8.25 Input current [A] Input current [A] Operating area where specifications...
  • Page 151 Operating Area Operating areas of the PLZ334WH Operating area where specifications are guaranteed Operating area where specifications are guaranteed Actual operating area H range Actual operating area Low voltage area 16.5 16.5 0.51 Input current [A] Input current [A] Operating area where specifications are guaranteed Operating area...
  • Page 152 Operating Area Operating areas of the PLZ1004WH Operating area where specifications are guaranteed Operating area where specifications are guaranteed Actual operating area H range Actual operating area Low voltage area 1.54 Input current [A] Input current [A] Operating area where specifications are guaranteed Operating area where specifications...

  • Page 153: B Sequence Program Creation

    Sequence Program Creation Table For normal sequence Program name: Date: Program number (1 to 10) Memo (Up to 11 characters) Operation mode CC, CR, CV, CP Range (A) -- Current (A) -- Voltage (V) Loop (1 to 9999) Last Load (OFF/ON) OFF, ON Last Set Chain (OFF, 1 to 10)
  • Page 154 Sequence Program Creation Table Entry example Program name: Example sequence of chapter 4: PLZ164WH Date: Program number (1 to 10) Memo Program1 (Up to 11 characters) Operation mode Range 8.25 (A) -- 650 (V) Current (A) -- Voltage (V) Loop (1 to 9999) 0001 Last Load (OFF/ON) OFF,...

  • Page 155: C Options

    Options The following options are available for the PLZ-4WH. For details, contact your Kikusui agent or distributor. Rack-mount frames and brackets These are rack mounting options. To support the PLZ-4WH, attach an angle support to it that is appropriate for the frame.
  • Page 156 Options Analog remote control connector kit (OP01-PLZ-4W) A kit for connecting to the EXT CONT connector on the rear panel. Socket 1 pc. Pins 20 pcs. Protection cover 1 set Flat cable for connecting units for parallel operation This flat cable is used to connect signal wires for parallel operation. It comes in two lengths. Model Length Explanation...
  • Page 157 INDEX DEL key 11 Memo 65 dimensions 136 menu settings 58 -S 27 DIRECT 50 Mode 65 +CV mode 34 display contrast, adjusting 30 +S 27 normal sequence 62 elapsed time display 57 A key 11 ENTER key 11 ABC preset memory 49 EXT CONT connector pin OCP 54 accessories 14...
  • Page 158 SAFETY 50 sequence examples 68 sequences, execution 81 serial number 12 setup memory 48 recalling 52 saving 51 SHIFT key 11 short function 44 short icon 44 slew rate 42 soft start 43 step 64 storage humidity range 135 storage temperature range 135 STORE key 11 switching function 40 TIME BASE 75...

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