GW Instek PSW Series Owner's manual

Multi-Range DC Power Supply
PSW Series
PROGRAMMING MANUAL
GW INSTEK PART NO. 82SW-80400E01
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table of Contents
3
Table of Contents
SAFETY INSTRUCTIONS ................................................... 4
GETTING STARTED........................................................... 8
PSW Series Overview ............................. 9
Appearance.......................................... 11
Configuration Settings ......................... 17
REMOTE CONTROL ........................................................ 21
Interface Configuration ........................ 22
Command Syntax ................................. 26
Command List ..................................... 29
Status Register Overview ..................... 63
Error List ............................................. 75
APPENDIX ...................................................................... 84
PSW Default Settings........................... 84
Error Messages & Messages ................ 86
LCD Display Format............................. 86
INDEX............................................................................. 87

PSW Series User Manual
4
SAFETY INSTRUCTIONS
This chapter contains important safety
instructions that you must follow during
operation and storage. Read the following before
any operation to insure your safety and to keep
the instrument in the best possible condition.
Safety Symbols
These safety symbols may appear in this manual or on the
instrument.
WARNING Warning: Identifies conditions or practices that
could result in injury or loss of life.
CAUTION Caution: Identifies conditions or practices that
could result in damage to the PSW or to other
properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal

SAFETY INSTRUCTIONS
5
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the PSW.
Avoid severe impact or rough handling that
leads to damaging the PSW.
Do not discharge static electricity to the PSW.
Use only mating connectors, not bare wires, for
the terminals.
Do not block the cooling fan opening.
Do not disassemble the PSW unless you are
qualified.
(Measurement categories) EN 61010-1:2001 specifies the
measurement categories and their requirements as follows. the
PSW falls under category II.
Measurement category IV is for measurement performed at the
source of low-voltage installation.
Measurement category III is for measurement performed in the
building installation.
Measurement category II is for measurement performed on the
circuits directly connected to the low voltage installation.
Measurement category I is for measurements performed on
circuits not directly connected to Mains.
Power Supply
WARNING
AC Input voltage range: 85VAC~265VAC
Frequency: 47Hz~63Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

PSW Series User Manual
6
Cleaning the PSW Disconnect the power cord before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals containing harsh material
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: 20%~ 85%
Altitude: < 2000m
Temperature: 0°C to 50°C
(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees
and their requirements as follows. The PSW falls under degree 2.
Pollution refers to “addition of foreign matter, solid, liquid, or
gaseous (ionized gases), that may produce a reduction of dielectric
strength or surface resistivity”.
Pollution degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence.
Pollution degree 2: Normally only non-conductive pollution
occurs. Occasionally, however, a temporary conductivity caused
by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or dry, non-
conductive pollution occurs which becomes conductive due to
condensation which is expected. In such conditions, equipment
is normally protected against exposure to direct sunlight,
precipitation, and full wind pressure, but neither temperature
nor humidity is controlled.
Storage
environment
Location: Indoor
Temperature: -25°C to 70°C
Relative Humidity: <90%
Disposal
Do not dispose this instrument as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased. Please make sure
discarded electrical waste is properly recycled to
reduce environmental impact.

SAFETY INSTRUCTIONS
7
Power cord for the United Kingdom
When using the power supply in the United Kingdom, make sure
the power cord meets the following safety instructions.
NOTE: This lead/appliance must only be wired by competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED
IMPORTANT: The wires in this lead are coloured in accordance with the
following code:
Green/ Yellow: Earth
Blue: Neutral
Brown: Live (Phase)
As the colours of the wires in main leads may not correspond with
the coloured marking identified in your plug/appliance, proceed
as follows:
The wire which is coloured Green & Yellow must be connected to
the Earth terminal marked with either the letter E, the earth symbol
or coloured Green/Green & Yellow.
The wire which is coloured Blue must be connected to the terminal
which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the
terminal marked with the letter L or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment
or contact the supplier.
This cable/appliance should be protected by a suitably rated and
approved HBC mains fuse: refer to the rating information on the
equipment and/or user instructions for details. As a guide, a cable
of 0.75mm2should be protected by a 3A or 5A fuse. Larger
conductors would normally require 13A types, depending on the
connection method used.
Any exposed wiring from a cable, plug or connection that is
engaged in a live socket is extremely hazardous. If a cable or plug is
deemed hazardous, turn off the mains power and remove the cable,
any fuses and fuse assemblies. All hazardous wiring must be
immediately destroyed and replaced in accordance to the above
standard.

PSW Series User Manual
8
GETTING STARTED
This chapter describes the power supply in a
nutshell, including its main features and front /
rear panel introduction. After going through the
overview, please read the theory of operation to
become familiar with the operating modes,
protection modes and other safety considerations.
PSW Series Overview......................................................... 9
Series lineup............................................................................ 9
Main Features....................................................................... 10
Appearance ..................................................................... 11
PSW Front Panel ................................................................. 11
Rear Panel............................................................................. 14
Configuration Settings..................................................... 17
Setting Configuration Settings ........................................... 17

GETTING STARTED
9
PSW Series Overview
Series lineup
The PSW series consists of 6 models, divided into 3 different model
types covering 3 power capacities: Type I (360 Watt), Type II (720
Watt) and Type III (1080 Watt).
Model name Type Voltage Rating Current Rating Power
PSW 30-36 Type I 0~30V 0~36A 360W
PSW 80-13.5 Type I 0~80V 0~13.5A 360W
PSW 30-72 Type II 0~30V 0~72A 720W
PSW 80-27 Type II 0~80V 0~27A 720W
PSW 30-108 Type III 0~30V 0~108A 1080W
PSW 80-40.5 Type III 0~80V 0~40.5A 1080W
Apart from the differences in output, each unit differs in size. The
720 and 1080 watt models are larger than the 360 watt models to
accommodate the increase in power.
360 Watt models
Type I
720 Watt models
Type II
1080 Watt models
Type III
A
W
V
W
%W10080604020
ISR
C C
DLY
ALM
RMT
C V
VSR
Function OVP/OCP Set Output
PWR DSPLLock/LocalTest
PSW 30-36 360W
Multi-Ra nge DC Power Supply Voltage
Current
A
W
V
W
%W10080604020
ISR
C C
DLY
ALM
RMT
C V
VSR
Function OVP/OCP Set Output
PWR DSPLLock/LocalTest
PSW 30-7 2 720W
Voltage
Current
Multi-Rang e DC Power Supply

PSW Series User Manual
10
Main Features
Performance High performance/power
Power efficient switching type power supply
Low impact on load devices
Fast transient recovery time of 1ms
Fast output response time
Features OVP, OCP and OTP protection
Adjustable voltage and current slew rates
User adjustable bleeder control to quickly
dissipate the power after shutdown to safe
levels.
Extensive remote monitoring and control
options
Support for serial and parallel connections
Power on state configuration settings.
Supports test scripts
Web server monitoring and control
Interface Ethernet port
Analog connector for analog voltage and current
monitoring
USB host and device port

GETTING STARTED
11
Appearance
PSW Front Panel
PSW 80-27, PSW 30-72 (720W)
PSW 80-40.5, PSW 30-108 (1080W) PSW 80-13.5,
PSW 30-36 (360W)
A
W
V
W
%W10080604020
ISR
C C
DLY
ALM
RMT
C V
VSR
Function OVP/OCP Set Output
PWR DSPLLock/LocalTest
PSW 30-36 360W
Multi-Range DC Power Supply Voltage
Current

PSW Series User Manual
12
Function Keys The Function keys along with the Output key will
light up when a key is active.
The Function key is used to
configure the power supply.
Set the over current or over
voltage protection levels.
Sets the current and voltage limits.
Used to run customized scripts for
testing. Please contact GW Instek
for more details.
Locks or unlocks the panel keys to
prevent accidentally changing
panel settings. When in remote
control mode, pressing the
Lock/Local key will return the
instrument to local control mode.
Toggles the display from viewing
V/AV/WA/W.
Display
Indicators
Voltage Slew Rate
Constant Volta
g
e Mode
Remote Control Mode
Alarm on
Dela
y
Outpu
t
Constant Current Mode

GETTING STARTED
13
Current Slew Rate
20 40 60
80 100
Power bar
Indicates the current power output
as a percentage.
Voltage Knob Voltage
Sets the voltage.
Current Knob Current
Sets the current.
Output
Press to turn on the output. The
Output key will light up when the
output is active.
USB
USB A port for data transfer,
loading test scripts etc.
Power Switch
Used to turn the power on/off.

PSW Series User Manual
14
Rear Panel
PSW 80-27, PSW 30-72 (720W)
PSW 80-40.5, PSW 30-108 (1080W) PSW 80-13.5,
PSW 30-36 (360W)
100 240VAC
1500VA MAX.
47 63Hz
LAN
LN
SER.NO. LABEL
AC Input

GETTING STARTED
15
Analog Control
Connector
Standard 26 pin MIL connector
(OMRON XG4 IDC plug).
The analog control connector is
used to monitor current and voltage
output, machine status (OVP, OCP,
OTP etc.), and for analog control of
the current and voltage output.
Use an OMRON XG5 IDC socket as
the mating socket.
Output Terminals
Positive (+) and negative (-) output
terminals.
Chassis ground
Sense (-) and Sense (+) terminals.
USB B port
The USB B port is used for remote
control.
Fans Temperature controlled fans
Ethernet Port
The ethernet port is used for remote
control and digital monitoring from
a PC.

PSW Series User Manual
16
Line Voltage
Input
(Type I/TypeII)
Type I: PSW 30-36/80-13.5
Type II: PSW 30-72/80-27
Voltage Input: 100~240 VAC
Line frequency: 50Hz/60 Hz
(Automatically switchable)
Line Voltage
Input
(Type III)
LN
Type III: PSW 30-108/80-40.5
Voltage Input: 100~240 VAC
Line frequency: 50Hz/60 Hz
(Automatically switchable)

GETTING STARTED
17
Configuration Settings
Setting Configuration Settings
Background
The normal configuration settings (F-01~F-61)
are used to configure system settings. Use the
following operation steps when configuring the
interface settings used in the Remote Control
chapter on page 18.
Ensure the load is not connected.
Ensure the output is off.
Note Configuration settings F-90~F-95 cannot be edited
in the Normal Function Settings. See the user
manual for details.
Steps 1. Press the Function key. The
function key will light up.
2. The display will show F-01
on the top and the
configuration setting for
F-01 on the bottom.
3. Rotate the voltage knob to change
the F setting.
Voltage
Range F-00~ F-61
4. Use the current knob to set the
parameter for the chosen F setting.

PSW Series User Manual
18
5. Press the Voltage knob to save the
configuration setting. Conf will be
displayed when successful.
Exit
Press the Function key again to exit
the configuration settings. The
function key light will turn off.
Configuration Table
Please use the configuration settings listed below when applying
the configuration settings.
Normal Function
Settings Setting Setting Range
Output ON delay time F-01 0.00s~99.99s
Output OFF delay time F-02 0.00s~99.99s
V-I mode slew rate select F-03
0 = CV high speed priority
1 = CC high speed priority
2 = CV slew rate priority
3 = CC slew rate priority
Rising voltage slew rate F-04 0.01V/s~60.00V/s (PSW 30-XX)
0.1V/s~160.0V/s (PSW 80-XX)
Falling voltage slew rate F-05 0.01V/s~60.00V/s (PSW 30-XX)
0.1V/s~160.0V/s (PSW 80-XX)
Rising current slew rate F-06
0.01A/s~72.00A/s (PSW 30-36)
0.1A/s~144.0A/s (PSW 30-72)
0.1A/s~216.0A/s (PSW 30-108)
0.01A/s~27.00A/s (PSW 80-13.5)
0.01A/s~54.00A/s (PSW 80-27)
0.01A/s~81.00A/s (PSW 80-40.5)

GETTING STARTED
19
Falling current slew rate F-07
0.01A/s~72.00A/s (PSW 30-36)
0.1A/s~144.0A/s (PSW 30-72)
0.1A/s~216.0A/s (PSW 30-108)
0.01A/s~27.00A/s (PSW 80-13.5)
0.01A/s~54.00A/s (PSW 80-27)
0.01A/s~81.00A/s (PSW 80-40.5)
Internal resistance
setting F-08
0.000Ω~0.833Ω(PSW 30-36)
0.000Ω~0.417Ω(PSW 30-72)
0.000Ω~0.278Ω(PSW 30-108)
0.000Ω~5.926Ω(PSW 80-13.5)
0.000Ω~2.963Ω(PSW 80-27)
0.000Ω~1.975Ω(PSW 80-40.5)
Bleeder circuit control F-09 0 = OFF, 1 = ON
Buzzer ON/OFF control F-10 0 = ON, 1 = OFF
USB/GPIB settings
Front panel USB State F-20 0 = Absent, 1 = Mass Storage
Rear panel USB State F-21 0 = Absent, 2 = USB-CDC,
3 = GPIB-USB adapter
Rear panel USB mode F-22 0 = Disable, 1 = GPIB-USB adapter,
2 = USB CDC
GPIB address F-23 0~30
LAN settings
MAC Address-1 F-30 0x00~0xFF
MAC Address-2 F-31 0x00~0xFF
MAC Address-3 F-32 0x00~0xFF
MAC Address-4 F-33 0x00~0xFF
MAC Address-5 F-34 0x00~0xFF
MAC Address-6 F-35 0x00~0xFF
LAN F-36 0 = Disable, 1 = Enable
DHCP F-37 0 = Disable, 1 = Enable
IP Address-1 F-39 0~255
IP Address-2 F-40 0~255
IP Address-3 F-41 0~255
IP Address-4 F-42 0~255
Subnet Mask-1 F-43 0~255
Subnet Mask-2 F-44 0~255
Subnet Mask-3 F-45 0~255
Subnet Mask-4 F-46 0~255
Gateway-1 F-47 0~255
Gateway-2 F-48 0~255

PSW Series User Manual
20
Gateway-3 F-49 0~255
Gateway-4 F-50 0~255
DNS address -1 F-51 0~255
DNS address -2 F-52 0~255
DNS address-3 F-53 0~255
DNS address-4 F-54 0~255
Sockets active F-57 0 = Disable, 1 = Enable
Web Server active F-59 0 = Disable, 1 = Enable
Web password active F-60 0 = Disable, 1 = Enable
Web setting password F-61 0000~9999