Kikusui PXB Series User manual

PXB20K-500
PXB20K-1000
PXB20K-1500
User’s Manual
Bidirectional DC Power Supply
PXB Series
Contents 5
Component Names 8
Preparation 11
Basic Operation 22
Protection Functions 48
Advanced Functions 61
Memory Function 90
Sequence Function 100
External Control 122
System Settings 144
Maintenance 163
Specifications 169
Appendix 182
Part No. IB036161
Mar 2023

2User’s Manual PXB series
This manual provides an overview of the product and
notes on usage. It also explains how to configure it,
operate it, perform maintenance on it, and so on. Read this
manual thoroughly before use, and use the product
properly.
Intended readers
These manuals are intended for users of this product and
their instructors. The manuals assume 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
connect 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.
System versions that this manual covers
This manual applies to the products with the firmware of
system version 3.0X.
For information on how to check the system version, see
“Displaying the Device Information” (p. 150).
When contacting us about the product, please provide us
with the following information.
Model (marked in the top section of the front panel)
System version (p. 150)
Serial number (marked on the rear panel)
Trademarks
Company names and product names in this manual are
generally trademarks or registered trademarks of the
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.
© 2023 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/pxb
About Manuals
PDFPDF
PDFPDF
PaperPaper
PDFPDF
PaperPaper
PDFPDF
PaperPaper
PDFPDF
Open Source Software

PXB series User’s Manual 3
This product is a Bidirectional dc power supply designed to
offer the highest levels of reliability and safety.
Model configurations
Features
In addition to basic constant current, constant voltage, and
constant power modes, this product offers a variety of
other functions.
Equipped with touch panel display
You can operate this intuitively by pressing the display.
The pressure-sensitive panel allows you to operate it
with your gloves on.
Interface available with external expansion
Connecting with LAN, USB, RS232C, and external
analog control are set default.
Realizing a compact but large-capacity power sys-
tem
20 kW power in a single 3U-size housing is realized.
Highly flexible external digital control
5 input terminals and 6 output terminals are provided for
free function selection. The signal input and output are
non-polar.
Equipped with slew rate switching and response
switching
Optimal test condition is provided according to the
application.
Effect of power saving
Since the regenerated power is delivered back to the
local power lines, you can expect benefits from power
savings.
Accessories
CD-ROM (1 disc)
Setup Guide (1 copy)
Safety Information (1 copy)
Quick Reference (English/
Japanese, 1 sheet each)
External control
connector kit (1 set)
[83-20-0290]
[83-80-0340]
SENSING connector cover
EXT SYNC connector cover
Input terminal cover
Heavy object warning
label (1 pc.)
OUTPUT terminal cover
Chassis connection wire
DC OUTPUT terminal
screws (1 pair)
PXB20K-500 only
DC OUTPUT terminal
screws (1 pair)
PXB20K-1000,
PXB20K-1500 only
[M3-112-013]
M38
(10 pieces)
[B1-010-041] [B1-010-042]
[Q1-510-013]
[M3-112-033]
M425
(4 pieces)
[Q1-500-106]
[P1-010-011] [M3-112-013]
M38 (2 pieces)
[P1-000-124] [M3-112-013]
M38 (1 piece)
M410 (1 piece)
[M3-112-041]
M510 (2 pieces)
[M1-100-020]
M1025 (2 pieces)
SENSING connector (2 pc.)
China RoHS sheet (1 sheet)
[83-70-1661]
[M5-101-008]
Spring washers (2 pieces)
[M4-100-008]
(2 pieces)
[M5-100-008]
(4 pieces)
[91-94-2901]
[M3-112-027]
If necessary, attach to the product.
DC OUTPUT terminal
screws (1 pair)
[M1-100-014]
M825 (2 pieces)
[M5-101-007]
Spring washers (2 pieces)
[M4-100-007]
(2 pieces)
[M5-100-007]
(4 pieces)
Synchronized operation
signal cable kit
[91-80-9201]
[96-00-0431]
Model Input voltage
rating
Output rating
Power Voltage Current
PXB20K-500 200 V 20 kW 500 V 120 A
400 V 20 kW 500 V 120 A
PXB20K-1000 200 V 20 kW 1 000 V 60 A
400 V 20 kW 1 000 V 60 A
PXB20K-1500 200 V 20 kW 1 500 V 30 A
400 V 20 kW 1 500 V 30 A
Product Overview

4User’s Manual PXB series
• In this manual, units of Bidirectional DC Power Supply
PXB20K-500, PXB20K-1000, and PXB20K-1500 refer to
as “PXB series”
• In this manual, constant voltage, constant current, and
constant power may refer to as CV, CC, and CP,
respectively.
• “PC” in this manual is a generic term for 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
manual 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 and other property.
Indicates information that you should know.
>
Indicates the hierarchy of items you need to select. The item
to the left of this symbol indicates a higher level item.
When using this product, be sure to observe the
precautions in the Safety Information Manual. Items
specific to this product are given below.
Be careful of hearing loss.
Wear earplugs when working near the PXB series 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 pressure level
or when several of this product is operated simultaneously
in the same place, the pressure level near the product may
exceed 80 dB.
• This equipment is not intended for use in residential
environments and may not provide adequate
protection to radio reception in such environments.
• The exhaust air may become hot.
Stay away from the exhaust air flow. The air outlet of the
PXB series should be 50 cm or more away from the wall
or objects installed so that the exhaust air does not
directly hit the wall or objects installed.
• When using or storing this product, be sure to observe
the temperature and humidity ranges. For environmental
conditions, see General Specifications (p. 180).
• The PXB series is designed with the assumption of local
regeneration. Use in an environment where the power at
the site is greater than the regenerated power.
Notations Used in This Manual
WARNING
CAUTION
Safety Precautions
WARNING
CAUTION
Notes on Usage

PXB series User’s Manual 5
Contents
About Manuals ...................................................2
Open Source Software .......................................2
Accessories ........................................................3
Product Overview ...............................................3
Notations Used in This Manual...........................4
Safety Precautions .............................................4
Notes on Usage..................................................4
Component Names ............................................8
Preparation
Connecting the Power Cord .............................11
Preparing for connection ...................................... 12
Connecting the Power Cord ................................. 13
Checking Whether the Power Is On or Off .......16
Turning the power on............................................ 16
Turning the power off............................................ 17
Connecting to the DUT.....................................18
Grounding the DC OUTPUT terminal ................... 18
Connecting the DUT............................................. 19
Basic Operation
Operating Area .................................................22
Touch Operation...............................................23
Touch Operation................................................... 23
Mouse operation................................................... 23
Displaying the menu............................................. 24
Changing values................................................... 26
Homepage........................................................27
Number and Character Input............................27
Touch panel operation.......................................... 28
Operations of the rotary knob and the ← / → keys 28
Output ON/OFF ................................................29
Setting the Priority Operation Mode .................30
Impedance Setting When the Output is Off......31
Setting the Output Mode ..................................32
Displaying the Measured Value and Setting the
Output Value ....................................................35
Error display ......................................................... 36
Measurement Recording..................................37
Recording measured values................................. 37
Changing the settings of measurement................ 38
Changing the integration settings......................... 43
Displaying the measured value recorded............. 45
Exporting measured values to a USB memory device
46
Displaying the most recent integrated values....... 47
Protection Functions
Alarm Types .....................................................48
LOW alarm ........................................................... 48
HIGH alarm .......................................................... 49
Setting the Protection Functions ......................51
Setting overvoltage protection (OVP)................... 51
Setting undervoltage protection (UVP)................. 52
Setting overcurrent protection (OCP)................... 53
Setting overpower protection (OPP)..................... 54
Setting grid overvoltage protection (LOVP).......... 55
Setting communication error protection (WDOG). 56
Setting incorrect sensing connection detection
(SENS)................................................................. 57
Remedying Alarm Generation..........................58
When an alarm occurs ......................................... 58
Checking alarm screen......................................... 59
Clearing an alarm................................................. 60
Advanced Functions
Remote Sensing...............................................61
Connecting the sensing cables ............................ 61
Enabling or disabling remote sensing .................. 63
Response .........................................................64
Slew Rate.........................................................65
Setting slew rate................................................... 65
Operation duration after output OFF operation .... 66
Settings at Startup............................................67
Output State at Startup ....................................68
Pulse Function .................................................69
Setting the pulse waveform.................................. 69
Enabling the pulse function .................................. 70

6User’s Manual PXB series
Sine Function................................................... 71
Setting the sine waveform.....................................71
Enabling the sine function .....................................72
I-V characteristic function ................................ 73
Setting I-V characteristics .....................................74
Enabling the I-V characteristic function.................77
Internal Resistance Function........................... 78
Setting resistance..................................................78
Enabling the internal resistance function ..............79
Synchronized Operation.................................. 80
Connection for synchronized operation.................80
Synchronization of output ON/OFF .......................81
Synchronization of the measurement start............82
Synchronization of the program start ....................83
Synchronization of the step start...........................84
Returning from synchronized operation to standalone
operation ...............................................................84
Parallel Operation............................................ 85
Making connections for parallel operation.............86
Performing parallel operation ................................88
Behavior during parallel operation ........................88
Changing from parallel operation back to standalone
operation ...............................................................89
Memory Function
Memory Types................................................. 90
Preset Memory ................................................ 91
Saving to preset memory ......................................91
Recalling preset memory entries...........................92
Setting the confirmation operation when recalling
memories ..............................................................93
Setup Memory ................................................. 94
Saving to the setup memory .................................95
Recalling the setup memory..................................98
When the setup memory is not displayed (USB
memory device only) .............................................99
Sequence Function
Overview of the Sequence Function.............. 100
Configuration of sequence ..................................100
Main functions .....................................................101
Program Configuration .................................. 102
Displaying the program list screen ......................102
Creating a program .............................................102
Changing program settings.................................103
Changing a program name .................................105
Saving the program.............................................106
Deleting a program .............................................107
Setting Steps..................................................108
Displaying the step list screen ............................108
Creating steps.....................................................109
Changing the step settings .................................110
Deleting a step....................................................115
Executing, Pausing, and Stopping Sequences ....
116
Registering the program in the chain ..................116
Unlocking a chain................................................117
Executing Sequences .........................................118
Stops the sequence ............................................119
Pausing a sequence ...........................................119
Exporting and Importing Programs.................120
Exporting programs to a USB memory device....120
Importing programs from a USB memory device 121
In the case that the program cannot be used .....121
External Control
Overview of the External Control....................122
EXT CONT Connector Pin Arrangement........123
Connecting to the EXT CONT Connector ......124
Connecting to the analog input terminal .............124
Connecting to the analog output terminal ...........125
Connecting to the digital input terminal...............126
Connecting to the digital output terminal.............127
Connecting to the EXT CONT connector............128
Setting Analog Input/Output ...........................129
Enabling analog input/output ..............................129
Setting the input range of the voltage control signal .
131
Setting the input range of the current/power control
signal...................................................................132
Setting the output range of the voltage control signal
133
Setting the output range of the current control signal
134
Setting Digital Input/Output ............................135
Enabling/disabling the digital input/output...........135
Setting the functions of the general-purpose digital
inputs ..................................................................136
Setting the functions of the general-purpose digital
output..................................................................138
Switching the filter for digital input ......................140
Switching the polarities for digital input...............141
Switching the polarities for digital output.............142

PXB series User’s Manual 7
System Settings
Communication Setting ..................................145
Displaying LAN settings...................................... 145
Changing LAN settings....................................... 146
Checking / changing the RS232C communication
settings ............................................................... 148
Displaying USB settings ..................................... 149
Displaying the Device Information..................150
Key Lock.........................................................151
Setting key lock level.......................................... 151
Enabling or disabling the key lock ...................... 152
Buzzer Sound.................................................153
Enables or disables buzzer ................................ 153
Returning the buzzer to the factory default setting ...
153
Screen Brightness ..........................................154
Returning the display brightness to the factory default
setting................................................................. 154
Setting the Date/Time.....................................155
Retrieving the time from an NTP server ............. 155
Setting the time manually ................................... 157
Updating .........................................................158
Factory Default Settings and Reset Settings..159
Restoring the factory default settings ................. 159
Returning the LAN settings to the factory default
values ................................................................. 160
Resetting the LAN settings................................. 160
Restoring to reset settings.................................. 161
Displaying SCPI Errors...................................162
Maintenance
Cleaning the Dust Filter..................................163
Removing the dust filter...................................... 163
Cleaning the dust filter........................................ 164
Attaching the dust filter....................................... 165
Inspection .......................................................166
Periodic inspections............................................ 166
Backup battery replacement............................... 166
Calibration .......................................................... 166
Disposal..........................................................167
Removing the battery at the time of disposal ..... 167
Specifications
Output Specifications .....................................169
Output rating....................................................... 169
Output voltage.................................................... 170
Output current .................................................... 171
Output power...................................................... 171
Input Specifications ........................................172
200 V three-phase three-wire input.................... 172
400 V three-phase three-wire input.................... 172
Display Specifications ....................................173
Protection Specifications................................174
LOW alarm ......................................................... 174
HIGH alarm ........................................................ 175
External Control Specifications ......................176
External analog I/O............................................. 176
External digital input........................................... 176
External digital output......................................... 177
Communication Specifications .......................178
Others ............................................................179
General Specifications ...................................180
Outline Drawing..............................................181
Appendix
Settings at factory default and at reset...........182
Selecting the Load Cables .............................185
Guide for Required Time for Residual Voltage
Discharge .......................................................187
Setting Range and Resolution During Parallel
Operation .......................................................189
Setting range during parallel operation .............. 189
Setting resolution during parallel operation........ 192
Options...........................................................193
Load cable.......................................................... 193
Three-phase input power cord ........................... 193
Parallel operation signal cable kit....................... 193
Rack mount bracket ........................................... 194
GPIB converter (PIA5100).................................. 195
Troubleshooting .............................................196
Index ..............................................................199

8User’s Manual PXB series
Component Names
Front panel
Number Name Description
1 POWER switch Turning the handle to the I side turns the power on, and the O side turns it off.
(p. 16)
2 Touch panel display Display the settings, measured values, and other information. Use the touch
panel to operate. (p. 23)
3← and → keys Move the cursor left and right. Select the left and right items. (p. 27)
4 Rotary knob Select items. Input numbers and characters. (p. 28)
5 Foot 5 locations on bottom panel. Remove them when installing in a rack. (p. 194)
6 Air inlet Air inlet for cooling.
7USB port (host) This port is used to connect an save and load setup memory (p. 94), save and
load programs (p. 120), and update the firmware (p. 158).
Connecting a mouse allows you to operate the display. (p. 23)
8 OUTPUT LED Light when the output is on. Blink during discharge. (p. 29)
9 OUTPUT key Switch on/off of the output from the DC OUTPUT terminal. (p. 29)
Stops the sequence. (p. 119)
POWER
OUTPUT
4
5
9876
12
3

PXB series User’s Manual 9
Touch panel display (Homepage)
Number Name Description
1Operation mode While the output from the DC OUTPUT terminal is on, the present operation mode is dis-
played. Press this icon when the output is off to set the preferred operation mode. (p. 30)
Operation underway in the Constant voltage mode
Operation underway in the Constant current mode
Operation underway in the Constant power mode
2LAN status Display the LAN connection status.
Green: Communication enabled, Orange: Preparing for communication, Red: Not con-
nected. Press this icon to display the communication setting. (p. 145)
3Alarm information Turn red when an alarm is sounding and displays the alarm name. If two or more alarms
are occurring simultaneously, “Many” is displayed. Press this icon to display the alarm
screen. (p. 58)
4SCPI error
information
The error icon is displayed when an SCPI error is occurring. The number of error incidents
(up to 16) is displayed numerically. Press this icon to display the error information. (p. 162)
5Rated value The rated values of the output current and output voltage are displayed. Press this icon
to display the device information. (p. 150)
6Measured value The output voltage, output current, and output power are displayed. Press the mea-
sured value to enlarge the display.
7Sequence/external
control/Sensing
connection/syn-
chronized operation
status
The sequence is running. (p. 100)
Digital input/output for external control is enabled. (p. 135)
Sensing function is enabled. (p. 61)
Synchronized operation is valid. (p. 80)
8Key lock status Key lock is released. Press and hold to enable the key lock. (p. 151)
Indicate that key lock is on. The lock level is indicated with a number (p. 151).
Press and hold to release the key lock.
Indicate that key lock is on.This is indicated on key-locked slave units during
parallel operation.Press and hold the icon to release the key lock.
The key is locked by the RLST command under remote control. The lock can be
released by pressing and holding the icon in some cases. (p. 152)
The key is locked by the RLST command under remote control. You cannot
release the lock by panel operation. (p. 196)
The key is locked by the status of remote control. You cannot release the lock by
panel operation. (p. 196)
9 Measured value /
Set value
Measured value / Set value are displayed. (p. 35)
10 Menu Press a button in Menu to move to the screen of each function. (p. 24)
12 3 4 6 758
10
9

10 User’s Manual PXB series
Rear panel
The following shows the rear panel of PXB20K-1500 as an example. The position of each part is the same for all
models.
Number Name Description
1 EXT CONT connector This connector is used for external control. Covers are attached to the terminals.
(p. 122)
2 LAN port This connector is used for remote control. For details, see the Communication
Interface Manual.
3 USB port
4RS232C port
5 PARALLEL connector This connector is used for parallel operation. (p. 85)
6 EXT SYNC connector This connector is used for synchronized operation. A cover is attached. (p. 80)
7 SENSING terminals These terminals are used for remote sensing. Connect the included SENSING
connector. A cover is attached. (p. 61)
8 DC OUTPUT terminal These terminals are used to connect the DUT and the product. A cover is
attached. (p. 18)
9 Air outlet Air outlet for cooling.
10 AC INPUT terminal block This connector is used to connect the power cord. A cover is attached. (p. 11)
11 DC OUT 5V connector This connector is used during GPIB converter (option) use. (p. 195)
12 Chassis terminal A connector for grounding the output. (p. 18)
13 Serial number The product’s serial number.
DC OUT 5V
EXT CONT
RS232C
USB
LAN
PARALLEL
T
S
R
3PHASE
3WIRE
IN
EXT SYNC
-
S
+
S
IN
OUT
OUT
SLOT
AWG
24
-
16
STRIP
GAUGE
10mm
SENSING
WEIGHT APPROX 37kg
HIGH VOLTAGEDANGER
± 20000W
0
-
1500V
-
30
-
+30A
DC OUTPUT
-
S
+
S
AC INPU T
380
-
480V 50
-
60Hz
22.2 kVA MAX
78910
1
2
3
4
5
6
1211 13

PXB series User’s Manual 11
Preparation
This chapter describes how to prepare this product for use.
• For information about installing and moving this product, see “Precautions Concerning Installation
Location” and “Precautions to Be Taken When Moving the Product” in the Safety Information Manual.
• When using or storing this product, be sure to observe the temperature and humidity ranges. For envi-
ronmental conditions, see “General Specifications” (p. 180).
• If you want to mount the product on a rack, see “Rack mount bracket” (p. 194).
Connecting the Power Cord
This product is designed as an equipment of IEC Overvoltage Category II (energy-consuming equipment
supplied from a fixed installation).
WARNING
Risk of electric shock.
• Before you connect the power cable, turn off the switchboard breaker (a switch that
cuts off the power supply from the switchboard).
• This product is IEC Safety Class I equipment (equipment with a protective conduc-
tor terminal). Be sure to ground the product to prevent electric shock.
• Connect the protective conductor terminal to earth ground.
• Be sure to have a qualified engineer make the connection to the switchboard.
• When you connect the power cord, attach the INPUT terminal cover regardless of
whether this product is in use.
CAUTION
Inside the product, protective circuits are connected to match the input terminal. Make sure
to connect the circuit breaker correctly with R, S, T, and G ( GND) of this product.
• The POWER switch of the product can be used to disconnect the product from the AC line
in an emergency. Provide adequate space around the POWER switch so that the POWER
switch can be turned off at any time.
• We recommend that you use one of the optional specialized power cords to connect to the
AC power line. If you will not use one of these power cords, use an appropriate power cord
with a length of 3 m or less that has been selected by a qualified technician. If obtaining a
power cord is difficult, contact your Kikusui agent or distributor.

12 User’s Manual PXB series
Preparation | Connecting the Power Cord
onnection example are described below.
Preparing for connection
Preparing power cord
A power cord is not included with this product. Optional three-phase input power cords (p. 193) are avail-
able. If you do not use the optional power cords, use ones with a nominal cross-sectional area of 22 mm2
or more.
The power cord can be drawn out to the lateral side or rear-panel side of the main unit.
If you pull out the power cords to the side, use ones with a crimping terminal compatible with R22-S6 on
one end to be connected to the AC INPUT terminal. (The optional power cords are equipped with such a
crimp terminal.)
If you pull out the power cords to the rear side, you need to bend them, which may cause damage to them.
We recommend using a right-angle terminal compatible with R22-S6 to connect the cords to the AC
INPUT terminal.
Checking the distribution system
The following distribution systems are available. Make sure that the distribution system to be connected
falls within the scope.
When using braker
Use a circuit breaker that meets the requirement below:
Example of 3P3W (200 V or 400 V input) Example of 3P4W (400 V input)
L2
Switchboard
Breaker
This product This product
R
S
T
G
R
S
T
L2
Switchboard
Breaker
N
R
S
T
G
R
S
T
Distribution
system
Nominal voltage Allowable variation range Note
Three-phase
three-wire
200 Vac to 240 Vac 180 Vac to 252 Vac Interphase voltage = Line voltage
380 Vac to 480 Vac 342 Vac to 504 Vac Interphase voltage = Line voltage
Three-phase
four-wire
380 Vac to 480 Vac 342 Vac to 504 Vac Interphase voltage x = Line voltage
Neutral line is not used.
3
Input specifications for
PXB series
Nominal current Current sensitivity
200 Vac input 100 A or less 15 mA or more
400 Vac input 50 A or less 30 mA or more

PXB series User’s Manual 13
Preparation | Connecting the Power Cord
Connecting the Power Cord
Make sure to attach the included INPUT terminal cover on the AC INPUT terminal block. The power cords
can be pulled out in two different directions according to the installation environment.
1Check that the AC power line meets the nominal input rating of the product.
Acceptable input voltage (any nominal supply voltage in the following ranges):
200 Vac input model: 200 Vac to 240 Vac
400 Vac input model: 380 Vac to 480 Vac
The supported frequencies are 50 Hz and 60 Hz. (Frequency range: 47 Hz to 63 Hz)
2Turning the POWER switch off ().
3Connect the power cords with R, S, T, and G (GND) of the AC INPUT terminal block.
Tightening torque: 2.5 N·m
To pull out them to the side To pull out them to
the rear side
R
S
G（GND）
T
M612
We recommend using right-angle
terminals to avoid damaging the
cords due to excessive bending.
Put the power cable through the INPUT
terminal cover before connecting.

14 User’s Manual PXB series
Preparation | Connecting the Power Cord
4Attach the side-panel INPUT terminal cover.
Set the cover as shown in the drawings according to the direction where the power cords are pulled
out.
5Attach the rear-panel INPUT terminal cover.
To pull out them
to the side
To pull out them
to the rear side
M3 8
To pull out them to the side To pull out them to the rear side
M38M38

PXB series User’s Manual 15
Preparation | Connecting the Power Cord
6Attach the protection plate.
The direction of the protection plate differs depending on the direction where the power cords are
pulled out. Make sure to prevent your fingers from being caught in the INPUT terminal cover when
attaching the protection plate.
7Attach a crimping terminal that matches the terminal screw of the circuit breaker to
the breaker side of the power cord.
8Turn off the switchboard’s circuit breaker.
9Connect the power cords with R, S, and T of the circuit breaker and ground G
(GND).
This completes the connections.
To pull out them to the side
M38M38
To pull out them to the rear side
M38M38

16 User’s Manual PXB series
Preparation
Checking Whether the Power Is On or Off
Turning the power on
1Check that the power cord is connected properly.
2Turn the POWER switch on ( I ).
Power turns on, and the model name and system version are displayed.
Then, the Homepage is displayed.
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.s
The panel setting state at startup can be changed (p. 67).
The output state at startup can be changed (p. 68).
CAUTION
If you notice strange sounds, unusual odors, fire, or smoke around or from inside the prod-
uct, turn the POWER switch off.
POWER switch

PXB series User’s Manual 17
Preparation | Checking Whether the Power Is On or Off
Turning the power off
1Turn the POWER switch off ().
Caution on residual voltage appears, then the power turns off.
• Although the LUVP alarm occurs in the external or remote control when the power turns
off, it is not an error.
• If you want to turn the POWER switch back on, wait at least 10 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.

18 User’s Manual PXB series
Preparation
Connecting to the DUT
Grounding the DC OUTPUT terminal
To ground the output terminal, connect the chassis terminal to the − or + terminal of DC OUTPUT with the
included chassis connection wire.
1Turn off the PXB series output.
2Connect the chassis connection terminal to the − or + terminal of DC OUTPUT with
the included chassis connection wire.
Tightening torque: 1.33 N·m
This completes the connections.
• When the chassis terminal is connected to the + terminal of DC OUTPUT, do not output a
voltage exceeding the isolation voltage (p. 180). This may damage PXB series.
• When grounding the DC OUTPUT terminal, do no ground the DUT.
M410 (mounted on the main body)
M410 (accessory)
Example: Connect to the − terminal

PXB series User’s Manual 19
Preparation | Connecting to the DUT
Connecting the DUT
Connect the DUT to the DC OUTPUT terminal.
For details on selecting a load cable, refer to “Appendix” “Selecting the Load Cables” (p. 185) in the
Appendix. Load cables are available as options (p. 193).
1Turn off the PXB series output.
2Attach crimping terminals to the load cables.
The DC OUTPUT terminals have holes for connecting the load cables. Attach the appropriate
crimping terminals to the cables.
WARNING
Risk of electric shock.
• Do not touch DC OUTPUT terminals when the output is turned on.
• Do not connect the DUT to the DC OUTPUT terminal while the output of this product
is on.
• Do not approach or place non-isolated objects within 5 cm of the load cables when
the output is turned on.
• Before turning the POWER switch on, make sure to attach the included OUTPUT ter-
minal cover regardless of whether the DUT is connected to the DC OUTPUT terminal
or not.
CAUTION
• Risk of damage. If you connect with reversed polarity, overcurrent will flow through the
diode inside the PXB series regardless of the output ON/OFF.
• Risk of overheating. Attach crimping terminals to the cables, and use the supplied screws
to connect the cables.
Model Bolt or screw size
PXB20K-500 M10 × 25
PXB20K-1000 M5 × 10, M8 × 25
PXB20K-1500 M5 × 10, M8 × 25

20 User’s Manual PXB series
Preparation | Connecting to the DUT
3Pass the load cables through the included OUTPUT terminal cover.
Cut the terminal cover to match the thickness of the cable.
For PXB20K-500, cut the cable to the size ø30 or smaller.
For PXB20K-1000 or PXB20K-1500, cut the cable to the size ø20 or smaller.
4Connect the load cables to the DC OUTPUT terminals using the included screw set
for OUTPUT terminals.
■For PXB20K-500
Tightening torque: 22.46 N·m
■For PXB20K-1000 or PXB20K-1500
Tightening torque
M5: 2.61 N·m
M8: 11.22 N·m
φ10
φ20
φ30
φ36
Cut the cover
according to the
cable thickness.
φ20 Line
φ30 Line
φ10 Line
M1025
Example) When using M5 screws
M5

10