Kikusui PLZ-5WH2 Series User manual

PLZ1005WH2
PLZ2005WH2
PLZ4005WH2
PLZ12005WH2
PLZ20005WH2
User’s Manual
Electronic Load
PLZ-5WH2 Series
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
Part No. IB034623
Dec 2019

2User’s Manual PLZ-5WH2
This manual provides an overview of the product and
notes on usage. It also explains how to configure it, oper-
ate it, perform maintenance on it, and so on. Read this
manual thoroughly before use, and use the product prop-
erly.
Intended readers
These manuals are intended for users of this product and
their instructors. The manual assumes that the reader has
knowledge about power supplies.
Manual construction
• User’s manual (this manual)
This document is intended for first-time users of this
product. It provides an overview of the product, notes on
usage, and specifications. It also explains how to con-
nect the product, configure the product, operate the
product, perform maintenance on the product, and so
on.
• Communication Interface Manual
This document contains details about remote control. It
is written for readers with sufficient basic knowledge of
how to control testers and measuring instruments using
SCPI commands.
• Quick Reference
This document briefly explains the control panel and the
basic operation of it.
• Setup Guide
This document is intended for first-time users of the
product. It gives an overview of the product, connecting
procedures, safety precautions etc. Please read this
manual before you operating the product.
• Safety Information
This document contains general safety precautions.
Keep them in mind and make sure to observe them.
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.
For information on how to check the firmware version, see
“Displaying the Device Information” (p. 143).
When contacting us about the product, please provide us
with the following information.
The model (marked in the top section of the front panel)
Firmware version (p. 143)
The serial number (marked on the rear panel)
Trademarks
All company names and product names used in this man-
ual are trademarks or registered trademarks of their
respective companies.
Copyright
Reproduction and reprinting of this operation manual,
whole or partially, without our permission is prohibited.
Both unit specifications and manual contents are subject to
change without notice.
© Copyright 2019 Kikusui Electronics Corporation
This product contains open source software under the
licensing terms of GNU General Public License (GPL),
GNU LESSER General Public License (LGPL), and other
licenses. For details, see the following URL.
https://rddocuments.kikusui.co.jp/oss/plz5wh
About Operation Manual
PDFPDF
PDFPDF
PaperPaper
PDFPDF
PaperPaper
PDFPDF
PaperPaper
PDFPDF
Open Source Software

PLZ-5WH2 User’s Manual 3
Common to all models
PLZ1005WH2, PLZ2005WH2, PLZ4005WH2
PLZ12005WH2, PLZ20005WH2
Accessories
Power cord (1 pc., length: 2.5 m)
CD-ROM (1 disc)
Setup Guide (1 copy)
Safety terminal adapter
TL41 (red 1 set, black 1set)
[87930]
Safety Information (1 copy)
Quick Reference
(Japanese 1 sheet, English 1 sheet)
Plug: NEMA5-15
Rating: 125 Vac/10 A
[85-AA-0004]
Plug: CEE7/7
Rating: 250 Vac/10 A
[85-10-1070]
Plug: GB1002
Rating: 250 Vac/10 A
[85-10-0791]
or or
External control
connector kit (1 set)
[83-20-0190]
The attached power cord varies depending on the shipment destination.
Front-panel DC INPUT
terminal cover (1 pc.)
Heavy object warning
label (1 pc.)
PLZ4005WH2 only
Cover
[Q1-510-001]
Screw [M8-600-021]
Rear-panel DC INPUT
terminal cover (1 set)
Screw set for rear-panel
DC INPUT terminals
(2 sets)
[M1-100-119]
[M5-101-008]
[M4-100-008] [M5-100-008]
Top [Q1-500-156]
Bottom [Q1-500-157]
Screws for the rear-panel DC
INPUT terminal cover (2 pcs.)
[M3-112-018]
Screws for the front-panel
DC INPUT terminals (2 pcs.)
[M3-112-043]
Rear-panel DC INPUT
terminals Cover screws
(2 pcs.)
[M3-112-016]
Screw set for rear-panel
DC INPUT terminals
(2 sets)
Rear-panel DC INPUT
terminals
Cover (1 set)
[M1-100-134]
[M5-101-009]
[M5-100-009][M4-100-009]
Top [Q1-500-158]
Bottom [Q1-500-159]
[PC02-PLZ-5W]
Parallel operation signal
cable kit
Cable length: Approx. 1 m
Heavy object warning label
(1 pc.)

4User’s Manual PLZ-5WH2
The PLZ-5WH2 Series Electronic Load is a multifunctional
system designed to offer the highest levels of reliability
and safety. A high voltage large capacity load can be con-
figured with this product set alone. The electronic load
contains a stable and fast-response current control circuit
that enables high-speed load simulations. Designed to
allow high-precision current setting, it provides outstanding
resolution.
The product is equipped with a color liquid crystal display
(LCD) for easy viewing.
Because the electronic load comes standard with
RS232C, USB, and LAN communication functions, it can
easily be incorporated into a wide range of inspection sys-
tems.
Model configurations
Features
In addition to basic constant current, constant resistance,
constant voltage, and constant power modes, the PLZ-
5WH2 Series offers a variety of other functions.
Larger capacity achievable in a compact form
The PLZ20005WH2 alone supports 20 kW. A compact
load system can be configured. Up to four units can be
operated in parallel using one of them as the master unit
(up to 100 kW, 2 000 A).
Wide operating voltage range
The operating voltage range is 10 V to 1 000 V. The min-
imum operating voltage at which current begins to flow
is 1.5 V.
Pulse and sine functions
The pulse function repeatedly executes two settings. It is
suitable for transient response characteristics testing of
large capacity power supplies and batteries. The sine
function varies the current sinusoidally.
Arbitrary I-V characteristics mode
Arbitrary I-V characteristics can be set by registering
multiple I-V characteristic points (pairs of voltage and
current values).
Cutoff function
The load can be turned off when the elapsed time from
load-on, the voltage drop, the integrated current, or the
integrated power reaches the specified value.
Synchronized Operation
Load on/off control and the execution of sequences can
be synchronized among PLZ-5WH2 units.
Data logging function
The most recent measurements (current, voltage,
power, elapsed time, integrated current, integrated
power) are shown on the display. Further, measure-
ments can be stored in internal memory.
Standard RS232C, USB, and LAN communication
functions
These functions allow easy incorporation into various
types of inspection systems.
GPIB function available as an option
Using the optional GPIB converter (p. 182), the GPIB
function can be used via the RS232C or USB interface.
(Limitations apply to some of the functions.)
• In this manual, the PLZ1005WH2, PLZ2005WH2,
PLZ4005WH2, PLZ12005WH2, or PLZ20005WH2 Elec-
tronic Load is also referred to as the PLZ-5WH2 or PLZ-
5WH2 series.
• The PLZ-5WH2 has five operation modes: CC, CR, CV,
CP, and ARB. The operation mode is sometimes simply
referred to as the mode.
• The term “PC” is used to refer generally to both personal
computers and workstations.
• The term “DUT” is used to refer generally to a device
under test.
• The screen captures and illustrations used in this text
may differ from the actual items.
• The following markings are used in this manual.
Indicates a potentially hazardous situation which, if ignored,
could result in death or serious injury.
Indicates a potentially hazardous situation which, if ignored,
may result in slight injury or damage to the product or other
property.
Indicates information that you should know.
Indicates a reference manual (CD-ROM) containing detailed
information.
>
Indicates the hierarchy of items you need to select. The item
to the left of this symbol indicates a higher level item.
Model Power Maximum
operating cur-
rent
Operating volt-
age
PLZ1005WH2 1 kW 20 A 10 V to 1 000 V
PLZ2005WH2 2 kW 40 A
PLZ4005WH2 4 kW 80 A
PLZ12005WH2 1 2 kW 240 A
PLZ20005WH2 2 0 kW 400 A
Product Overview
Notations Used in This Manual
WARNING
CAUTION

PLZ-5WH2 User’s Manual 5
When using this product, be sure to observe the precau-
tions in the Safety Information manual. Items specific to
this product are given below.
• Be careful of hearing loss.
Wear earplugs when working near the PLZ12005WH2
or PLZ20005WH2 when it is running.
The noise sound pressure level of this product is 80 dB
or less, but when this product is operated in the same
place as another product with a large noise sound pres-
sure level or when several of this product is operated
simultaneously in the same place, the pressure level
near the product may exceed 80 dB.
• The exhaust air may become hot.
Stay away from the exhaust air flow. Move this product
away from installed objects to prevent the exhaust air
from hitting them directly.
• Do not use or store the PLZ1005WH2, PLZ2005WH2,
PLZ4005WH2 in a vertical position.
Risk of falling over. Use the legs on the side panel of the
PLZ1005WH2 or PLZ2005WH2 to temporarily stand the
product up for the purpose of carrying it by the handle.
• When installing this product, be sure to observe the tem-
perature and humidity ranges indicated below.
Operating temperature range: 0 °C to 40 °C (32 °F to
104 °F)
Operating humidity range: 20 %rh to 85 %rh (no con-
densation)
• When storing this product, be sure to observe the tem-
perature and humidity ranges indicated below.
Storage temperature range: -25 °C to 60 °C (-13 °F to
140 °F)
Storage humidity range: 90 %rh or less (no condensa-
tion)
• Adequately ventilate the room in which this product is
installed to keep the room temperature from rising.
• Locking the casters and applying the stopper
The PLZ12005WH2 and PLZ20005WH2 have casters
on the bottom side, so it is easy to move the product. To
ensure that the product is not moved accidentally while it
is being operated, use the stopper to fix the product in
place, and lock the casters with your foot.
• When moving the product, be sure to release the stop-
per. (PLZ12005WH2, PLZ20005WH2 only)
Loosen the stopper nut, and turn the stopper shaft to
raise its base up to the bottom of the product. Provide
adequate space between the base of the stopper and
the floor.
Otherwise, the stopper may hit an obstacle while the
product is being moved causing the stopper shaft to
break.
Safety Precautions
WARNING
CAUTION
Notes on Usage
Down
Up
Stopper
Free
Lock

6User’s Manual PLZ-5WH2
Contents
About Operation Manual.................................... 2
Open Source Software ...................................... 2
Accessories ....................................................... 3
Product Overview .............................................. 4
Notations Used in This Manual.......................... 4
Safety Precautions ............................................ 5
Notes on Usage................................................. 5
Component Names.......................................... 10
Preparation
Connecting the Power Cord ............................ 16
Checking Whether the Power Is On or Off ...... 17
Turning the power on ............................................17
Turning the power off ............................................18
Connecting to the DUT .................................... 19
When connecting to the rear-panel DC INPUT termi-
nals........................................................................20
When connecting to the front-panel DC INPUT termi-
nals........................................................................22
Notes regarding DC INPUT terminals ...................24
Basic Functions
Panel Operations............................................. 25
Switching the display.............................................25
Using the function keys .........................................26
Identification using color markers..........................27
Inputting numbers and characters.........................28
Changing values ...................................................29
Load On/Off ..................................................... 30
Setting the Operation Mode............................. 31
Selecting the operation mode ...............................31
Setting the current in CC mode.............................32
Setting the conductance in CR mode....................33
Setting the resistance range of CR mode .............34
Setting the voltage in CV mode.............................35
Setting the power in CP mode..............................36
Setting the I-V characteristics in ARB mode .........37
Setting the Slew Rate ...................................... 41
Pulse Function................................................. 42
Setting the pulse amplitude...................................42
Setting the pulse interval.......................................43
Turning the pulse function on/off...........................44
Timing of trigger signal output...............................44
Sine Function ...................................................45
Setting the amplitude ............................................45
Setting the frequency ............................................46
Turning the sine function on/off.............................47
Trigger signal timing..............................................47
Alarm Function .................................................48
Alarm types and operation ....................................48
Setting overcurrent protection (OCP)....................50
Setting overpower protection (OPP) .....................51
Setting undervoltage protection (UVP) .................52
Setting watchdog protection (WDP)......................53
When an alarm occurs ..........................................54
Clearing an alarm..................................................54
Recording Measurements ................................55
Starting measurement recording...........................55
Setting recording conditions..................................56
Aborting a measurement recording.......................59
Displaying the recorded measurement .................60
Recording Integrated Data ...............................61
Recording integrated current, integrated power, and
elapsed time..........................................................61
Showing or hiding integrated data ........................63
Saving Measurement Data...............................64
Advanced Functions
Changing the Response Speed .......................65
Soft Start ..........................................................66
Remote Sensing...............................................67
Connecting cables to the safety terminal adapters67
Connecting the sensing cables .............................68
Enabling or disabling remote sensing ...................69
Cutoff Function.................................................70
Setting the cutoff activation condition ...................70
Cutoff operation ....................................................72
When cutoff is activated........................................73
Types of Memory..............................................74
ABC Preset Memories......................................75
Saving to ABC preset memories...........................76
Recalling ABC preset memory entries ..................77
Setup Memory..................................................78
How to view the setup memory edit screen ..........78
Saving to the setup memory .................................79
Checking the setup memory details......................80

PLZ-5WH2 User’s Manual 7
Recalling the setup memory ................................. 81
Sharing the setup memory with the PLZ-5W........ 81
Synchronized Operation...................................82
Connection for synchronized operation ................ 82
Synchronizing the load on/off operation ............... 84
Synchronizing measurement recording ................ 85
Synchronizing the start of sequences................... 86
Synchronizing the resuming of sequences........... 87
Aborting synchronized operation .......................... 87
Remote Control ................................................88
Releasing remote control...................................... 88
Sequence Function
Overview of the Sequence Function.................89
Programs and steps ............................................. 89
Main functions ...................................................... 89
Program Configuration .....................................90
How to view the program editing screen .............. 90
Creating a program............................................... 90
Setting the number of loops.................................. 91
Setting protection functions .................................. 92
Setting the load state at the end of the sequence 93
Changing a program name................................... 94
Deleting a program ............................................... 94
Setting Steps ....................................................95
Creating steps ...................................................... 95
Deleting steps....................................................... 98
Sequence Creation Tutorial..............................99
Creating Program1 as a new program ................. 99
Registering steps to Program1 ........................... 100
Executing, Pausing, and Stopping Sequences ....
103
Executing a sequence ........................................ 103
Aborting a sequence........................................... 104
Pausing a sequence ........................................... 104
Controlling the start of sequences with triggers.. 104
Exporting and Importing Programs.................106
Exporting programs to a USB memory device ... 106
Importing programs from a USB memory device 107
External Control
Preparation for External Control.....................108
Precautions for use at high response speeds .... 108
EXT CONT connector pin arrangement ............. 109
Connecting to the EXT CONT connector ........... 110
Load Setting Control.......................................112
Constant current (CC), constant resistance (CR), and
constant power (CP) control ............................... 112
Constant voltage (CV) control ............................ 113
Controlling the current to be superimposed on the
constant current (CC)......................................... 114
Controlling Load On/Off .................................115
Load on/off control input..................................... 115
Load-on status signal output .............................. 116
Controlling Alarms..........................................117
Alarm input ......................................................... 117
Alarm clearing input............................................ 117
Alarm status output ............................................ 117
Trigger Input/Output .......................................118
Trigger input ....................................................... 118
Trigger output ..................................................... 118
Digital I/O .......................................................119
Current/Voltage Monitor Signal Output ..........120
Parallel Operation
Overview of Parallel Operation ......................121
Making connections for parallel operation.......... 122
Performing parallel operation ............................. 124
Slew rate and response speed settings during paral-
lel operation........................................................ 125
Protection function during parallel operation (parallel
operation anomaly detection) ............................. 125
Changing from parallel operation back to standalone
operation ............................................................ 125
System Settings
Displaying and Changing CONFIG Settings ..126
Remote sensing ................................................. 126
Panel settings at startup..................................... 127
Watchdog protection setting (WDP)................... 127
Screen saver ...................................................... 128
Key lock.............................................................. 129
Setting the beep sound ...................................... 130
Setting the DIGITAL2 signal input/output ........... 131
Displaying/Changing the Interface Settings ...132
Resetting the interface settings .......................... 134
Returning the interface settings to the factory default
values ................................................................. 134
Displaying SCPI Errors ..................................135
Setting the Date/Time ....................................136
Factory Default Settings and Reset Settings .137
Restoring the factory default settings ................. 137
Restoring the reset settings................................ 138
Main settings at factory default and at reset....... 139
Updating.........................................................142
Displaying the Device Information..................143

8User’s Manual PLZ-5WH2
Maintenance
Inspection ...................................................... 144
Overhaul..............................................................144
Backup battery replacement ...............................144
Calibration ...........................................................144
Specifications
Rating..................................................................145
Constant current (CC) mode ...............................145
Constant resistance (CR) mode..........................146
Constant voltage (CV) mode...............................146
Constant power (CP) mode.................................147
Arbitrary I-V characteristics (ARB) mode ............147
Measurement function.........................................148
Pulse function......................................................149
Slew rate .............................................................149
Sine function .......................................................150
Soft start..............................................................150
Alarm function .....................................................151
Sequence function ..............................................151
Integration display ...............................................152
Cutoff function .....................................................152
Other functions....................................................152
Common specifications .......................................153
General specifications.........................................155
External dimensions............................................156
Appendix
Selecting the Load Cables............................. 160
Methods to Stabilize Operation ..................... 162
Reducing the load cable inductance ...................162
Optimizing the response speed...........................163
Using remote sensing .........................................163
Frequency Derating of Input Voltage............. 164
Slew Rate for Small Currents ........................ 165
Operating Area .............................................. 166
Basic operation modes........................................166
Operation of the constant current (CC) mode .....167
Operation in constant resistance (CR) mode ......168
Constant power (CP) mode operation.................170
Constant voltage (CV) mode operation...............171
Operating area of each model.............................173
OPP Operation .............................................. 175
Current limit in relation to the voltage..................175
Response time ....................................................176
Waveform............................................................177
Propagation Delay for External Control ......... 178
Operating Range during Parallel Operation ...179
Options...........................................................181
Parallel operation signal cable kit .......................181
Low inductance cable .........................................181
High-voltage load cable ......................................181
GPIB converter (PIA5100) ..................................182
Rack mount bracket ............................................183
Troubleshooting..............................................186
Index...............................................................188

PLZ-5WH2 User’s Manual 9
This page is intentionally blank.

10 User’s Manual PLZ-5WH2
Component Names
Front panel
PLZ1005WH2, PLZ2005WH2, PLZ4005WH2
PLZ12005WH2, PLZ20005WH2
12V MON
OUT
I MON
OUT
TRIG
OUT
LOAD SOURCE
MEASURE
879
546
213
0CLEAR
SYSTEM
POWER
SEQUENCE
KEY LOCK
ENTERESCAPE
LOCAL
DC INPUT
123
66
7
8910
(PLZ1005WH2 example)
4
(PLZ12005WH2 example)
1*
10
3
8
9
12
5
11 13
I MON
OUT
TRIG
OUT
V MON
OUT
LOAD
SOURCE MEASURE
879
546
213
0CLEAR
SYSTEM SEQUENCE
KEY LOCK
ENTERESCAPE
LOCAL
POWER

PLZ-5WH2 User’s Manual 11
No. Name Description See
1Air inlet Air inlet for cooling. –
2Protection plate This plate protects the front-panel DC INPUT terminals. The PLZ1005WH2,
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.
p. 22
3USB port (host) This port is used to connect an external keyboard, save measurement data,
save and load setup memory, save and load programs, and update the firm-
ware.
p. 28
p. 64
p. 79
p. 106
p. 142
4Handle for carrying the
product.
PLZ1005WH2, PLZ2005WH2 only. p. 184
5Handle The handle is used to move the product on casters. –
6Feet PLZ1005WH2/PLZ2005WH2: 4 locations on bottom panel, 4 locations on
side panel.
PLZ4005WH2: 4 locations on bottom panel.
p. 184
7Front-panel DC INPUT
terminals
These terminals are used for simple connection with the DUT. The specifica-
tions are for the rear-panel DC INPUT terminals and the front-panel DC
INPUT terminals may not meet the specifications.
p. 22
8I MON OUT connector This connector outputs current monitor signals. p. 120
9V MON OUT connector This connector outputs voltage monitor signals.
10 TRIG OUT terminal This connector outputs trigger signals. p. 118
11 Caster and caster lock Push the caster lock down firmly with your foot until it stays in the ON posi-
tion.
p. 5
12 POWER switch Flipping the switch to the side turns the power on and the side turns the
power off.
p. 17
13 Stopper Use to fix the product in the installation place. p. 5
*Not used Do not remove the screw. –

12 User’s Manual PLZ-5WH2
Controls
No. Name Function See
1Display Displays the settings, measured values, and other information. p. 13
2Function keys Each function key executes the item that is displayed above that key (function
area).
p. 26
3Sub-function keys Each sub-function key executes the item that is displayed to the left of that
key (sub-function area).
p. 26
4Numeric keypad Enters values. p. 28
5CLEAR key Deletes numeric/character input. p. 28
6←/→ keys Move the cursor left and right. Select the left and right items. p. 28
7ENTER key
KEY LOCK key
Confirms numeric keypad input. Confirms a setting after it is selected.
Hold down to lock the keys.
p. 28
p. 129
8ESCAPE key
LOCAL key
Cancels numeric/character input. Closes the window.
Returns remote control to panel control.
p. 28
p. 88
9Rotary knob Selects items. Inputs numbers and characters. p. 28
10 LOAD LED Lights when the load is on. p. 30
11 LOAD key Switches between load on and off. p. 30
12 Menu keys Switch the display. p. 25
SOURCE key Operation modes, current/resistance/power/voltage value setting, resistance
range, sine function, pulse function, slew rate, alarm, response speed, soft
start, cutoff function, external control, ABC preset memories, load on/off syn-
chronization.
–
MEASURE key Measurement function, measurement trigger function, integrated data display,
measurement data saving.
–
SEQUENCE key Sequence creating, executing, and saving. Sequence start trigger function. p. 89
SYSTEM key Remote sensing, system settings, interface settings, setup memory, SCPI
error display, date setting, restore factory default setting, update, device infor-
mation display.
p. 126
123
4
5
6
10 1211
9
8
7

PLZ-5WH2 User’s Manual 13
Display
No. Name Function See
1Selected operation mode. Displays the selected operation mode. p. 31
2Current range Displays the current range (1 range).
Changes to pink color when L range of CR mode is specified.
–
3Voltage range Displays the voltage range (1 range). –
4Remote Indicates that the product is being controlled remotely. p. 88
5Operation mode in use Displays the operation mode in use. p. 31
6LAN Displays the LAN connection status.
Green: Communication enabled. Orange: Preparing for communication.
Red: Not connected.
–
7Icons –
Indicates that the pulse function is running. p. 44
Indicates that the sine function is running. p. 47
Indicates that measured values are being recorded. p. 55
Indicates that the cutoff function is enabled. p. 70
/Cutoff cause: Elapsed time activation, voltage drop activation
/Cutoff cause: Integrated current activation, integrated power activation
Indicates that remote sensing is in progress. p. 67
/ / Indicates that key lock is on. The key lock level is indicated with a number. p. 129
Indicates that a sequence is running. p. 103
/ / External contact state and input logic setting (load on/off control). p. 116
Indicates that an SCPI error has occurred. The number of error incidents
(up to 16) is displayed numerically.
p. 135
8Sub-function area Indicates that execution is possible with the keys (sub-function keys) in the
right side of the display.
p. 26
9function area Indicates that execution is possible with the keys (function keys) at the bot-
tom of the display.
p. 26
10 Message area Displays alarm messages. p. 48
11 Measured values The current, voltage, and power are displayed. The load input ratio for each
rating is displayed in bar graph form under the current value and voltage
value.
–
12 Integrated data Displays the integrated data when integrated data display is enabled. p. 63
13 Value Displays load values (current, conductance, voltage, power) and other set-
tings such as slew rate and alarm operating conditions.
–
1
10
11
12
13
23 4 675
8
9

14 User’s Manual PLZ-5WH2
Rear panel
PLZ1005WH2, PLZ2005WH2, PLZ4005WH2
PLZ12005WH2, PLZ20005WH2
12 3 4 8
910
67 5
11
12
(PLZ1005WH2 example)
RS232CUSB LAN
INOUT
PARA LLEL
INOUT
EXT SYNC
DC OUT 5V
DC INPUT
EXT CONT
SENSING
+
S
-
S
AC INPU T
EXT CONT
RS232C
USB LAN
SENSING
+
S
-
S
DC OUT 5V
DC INPUT
AC INPU T
INOUT
PARA LLEL
INOUT
EXT SYNC
12 3 4 8
9
10
11
13
12
675
(PLZ12005WH2 example)

PLZ-5WH2 User’s Manual 15
No. Name Function See
1USB port (device) These are used for remote control.
Interface
Manual
2LAN port
3RS232C port
4DC OUT connector This connector is used during GPIB converter (option) use. p. 182
5EXT SYNC connector This connector is used for synchronized operation. A cover for the pins is
provided.
p. 82
6PARALLEL connector This connector is used for parallel operation. A cover for the pins is pro-
vided.
p. 122
7EXT CONT connector This connector is used for external control. A cover for the pins is provided. p. 108
8SENSING terminals These terminals are used for remote sensing. p. 67
9AC INPUT connector This connector is used to connect the power cord. p. 16
10 Serial number The product’s serial number. –
11 Rear-panel DC INPUT
terminals
These terminals are used to connect the DUT and the product. p. 19
12 Air outlet Air outlet for cooling. –
13 Cord anchor This anchor is used to fix the power cord in place. –

16 User’s Manual PLZ-5WH2
Preparation
Connecting the Power Cord
This product is designed as an equipment of IEC Overvoltage Category II (energy-consuming equipment
supplied from a fixed installation).
1Turning the POWER switch off ( )
2Check that the AC power line meets the nominal input rating of the product.
The product can receive a nominal line voltage in the range of 100 Vac to 240 Vac at 50 Hz or 60
Hz. (Frequency range: 47 Hz to 63 Hz)
3Connect the power cord to the rear-panel AC INPUT.
For the PLZ12005WH2 or PLZ20005WH2, if necessary, secure the power cord with the cord
anchor.
4Insert the power plug to an outlet with a ground terminal.
This completes the setting.
WARNING
Risk of electric shock.
• This product is IEC Safety Class I equipment (equipment with a protective con-
ductor terminal). Be sure to ground the product to prevent electric shock.
• The product is grounded through the power cord ground wire. Connect the pro-
tective conductor terminal to earth ground.
• Use the supplied power cord to connect to the AC line.
If the supplied power cord cannot be used because the rated voltage or the plug shape
is incompatible, have a qualified engineer replace it with an appropriate power cord
that is 3 m or less in length. If obtaining a power cord is difficult, contact your Kikusui
agent or distributor.
• The power cord with a plug can be used to disconnect the product from the AC power
line in an emergency.
• Secure adequate space around the power plug. Do not insert the power plug to an out-
let where accessibility to the plug is poor. And, do not place objects near the outlet that
would result in poor accessibility to the plug.
• Do not use the supplied power cord with other instruments.

PLZ-5WH2 User’s Manual 17
Preparation
Checking Whether the Power Is On or Off
Turning the power on
1Check that the power cord is connected properly.
2Check that nothing is connected to the DC INPUT terminals.
3Turn the POWER switch ( ) on.
The power turns on, and the display lights.
By factory default, the panel settings immediately before the POWER switch is turned off are
saved. When you turn the power on, the product starts in the same state as it was in the last time it
was turned off. (However, the load setting is always Load Off.)
The panel setting state at startup can be changed (p.127).
POWER
V MON
OUT
I MON
OUT TRIG OUT
ELECTRONIC LOAD
PLZ
-
5W
0.0
-
00V
0
-
000A
000W
LOAD
SOURCE MEASURE
879
546
213
0CLEAR
SYSTEM
POWER
SEQUENCE
KEYLOCK
ENTERESCAPE
LOCAL
POWER switch
• If you notice strange sounds, unusual odors, fire, or smoke around or from inside the
product, flip the POWER switch off, or remove the power cord plug from the outlet.
• The POWER switch of the PLZ12005WH2 and PLZ20005WH2 is a circuit breaker
type. If the AC power line is not compatible with the input rating of this product or if
there is an error in the internal power supply of this product, the POWER switch is acti-
vated as a power supply circuit breaker.

18 User’s Manual PLZ-5WH2
Preparation | Checking Whether the Power Is On or Off
Turning the power off
Turn the POWER switch off ( ).
CAUTION
If you want to turn the POWER switch back on, wait at least 5 seconds after the fan
stops. Repeatedly turning the POWER switch on and off at short intervals will shorten the
service life of the POWER switch and the internal input fuse.

PLZ-5WH2 User’s Manual 19
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” (p. 160) in the “Appendix”.
Large current load cables are available as options.
WARNING
Risk of electric shock.
• Do not touch DC INPUT terminals when the output is turned on.
• Do not approach or place non-isolated objects within 5 cm of the load cables
when the output is turned on.
• (PLZ1005WH2, PLZ2005WH2, and PLZ4005WH2 only) The front-panel DC INPUT
terminals are connected internally to the rear-panel DC INPUT terminals. The
voltage applied to the terminal on one side appears directly at the terminal on
the other side.
CAUTION
Risk of damage.
• Do not connect the DUT to the DC INPUT terminals while the product’s load is turned
on.
• Do not invert the polarity when connecting. An overcurrent might flow regardless of
whether the load is turned on.
• (PLZ1005WH2, PLZ2005WH2, and PLZ4005WH2 only) Do not connect electronic
loads to the front-panel DC INPUT terminals and the rear-panel DC INPUT terminals
at the same time.
Risk of overheating.
• Attach crimping terminals to the cables, and use the supplied screws to connect the
cables.

20 User’s Manual PLZ-5WH2
Preparation | Connecting to the DUT
When connecting to the rear-panel DC INPUT terminals
Connect the DUT to the rear-panel DC INPUT terminals.
1Turn off the load.
2Turn off the DUT output.
3Attach crimping terminals to the load cables.
The rear-panel DC INPUT terminals have bolt holes for connecting the load cables. Attach the
appropriate crimping terminals to the cables.
4Connect the load cables to the rear-panel DC INPUT terminals using the screw set
for rear-panel DC INPUT terminals.
■PLZ1005WH2, PLZ2005WH2, PLZ4005WH2
■PLZ12005WH2, PLZ20005WH2
WARNING
Risk of electric shock.
• Be sure to attach the included cover for the rear-panel DC INPUT terminals.
• (PLZ1005WH2, PLZ2005WH2, and PLZ4005WH2 only) Attach the protection plate
or included cover for the front-panel DC INPUT terminals also to the front-panel
DC INPUT terminals. The voltage applied to the rear-panel DC INPUT terminals
appears at the front-panel DC INPUT terminals.
Model Bolt size Tightening torque
PLZ1005WH2, PLZ2005WH2, PLZ4005WH2 M10 22.46 N•m
PLZ12005WH2, PLZ20005WH2 M12 33.06 N•m
M10
Positive
Negative
Positive
Negative
M12 M12
Positive
Negative
When there are two load cables When there are four load cables