GW Instek PSH series User manual

Programmable Power Supply
PSH series
USER MANUAL
GW INSTEK PART NO. XXXX-XXXXXX
ISO-9001 CERTIFIED MANUFACTURER
This manual contains proprietary information, which is protected
by copyrights. 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 City, Taipei County 236, Taiwan.

Table of Contents
3
Table of Contents
Safety Instructions ........................................ 5
Safety Symbols ......................................... 6
Safety Guidelines....................................... 6
Power cord for the United Kingdom .............. 9
PSH Overview .............................................. 11
Main Features ..........................................12
PSH Series Lineup.....................................13
Package Contents .....................................14
Front Panel ..............................................16
Rear Panel...............................................18
Display....................................................19
Setup ........................................................... 21
AC Power Cable Assembly..........................22
Remote Sensing and Local Sensing .............24
Load / Remote Sensing Wire Selection.........25
Load Configuration....................................26
Load Wire Assembly..................................30
Remote Sensing Wire Assembly..................32
Functionality Check...................................34
Rack Mounting (Optional) ..........................40
Panel Operation ........................................... 43
Menu Key Overview ..................................44
Constant Voltage/ Constant Current Crossover
Characteristic...........................................45
Output Voltage Setting ..............................46
Output Current Setting..............................47
OVP (Output Voltage Protection) Setting ......48
OCP (Output Current Protection) Setting......49
Display Contrast Setting ............................50
PSH User Manual
4
Buzzer sound Setting ................................51
Remote Operation.........................................52
Interface Selection....................................53
Command Syntax .....................................57
Command Set ..........................................58
Calibration ....................................................61
Calibration Preparation ..............................62
Entering calibration mode ..........................63
Output Voltage calibration..........................64
Output Current calibration .........................66
OVP Calibration ........................................68
FAQ...............................................................69
Appendix.......................................................71
Specifications...........................................71
Declaration of Conformity ..........................75
Index ............................................................76

Safety Instructions
5
Safety Instructions
This chapter contains important safety
instructions that must be followed when
operating PSH and when keeping it in storage.
Read the following before any operation to
insure safety and to keep the best condition for
PSH.
Safety Symbols Safety Symbols .........................................6
Safety
Guidelines Safety Guidelines.......................................6
Power Supply............................................7
Fuse ........................................................7
Cleaning PSH ............................................7
Operation Environment...............................8
Storage Environment .................................8
Power cord Power cord for the United Kingdom ..............9
PSH User Manual
6
Safety Symbols
These safety symbols may appear in this manual or on PSH.
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 PSH or to other
properties.
DANGER High Voltage
Attention Refer to Manual
Protective Conductor Terminal
Earth (ground) Terminal
Safety Guidelines
•Do not place any heavy object on PSH.
•Avoid severe impacts or rough handling that
leads to damaging PSH.
•Do not discharge static electricity to PSH.
•Do not block or obstruct cooling fan vent
opening.
•Do not perform measurements at power source
and building installation site (Note below).
•Do not disassemble PSH unless you are
qualified as service personnel.
General
Guideline
CAUTION
(Note) EN 61010-1:2001 specifies the measurement
categories and their requirements as follows. PSH falls
under category II.
Measurement category IV is for measurement performed

Safety Instructions
7
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.
Power Supply
WARNING
•Input voltage: 90 ~ 250 V AC, 50/60 Hz
•The power supply voltage should not fluctuate
more than 10%.
•Connect the protective grounding conductor of
the power cord to earth ground, to avoid
electrical shock.
PSH-1036A
PSH-2018A
PSH-3610A
PSH-6006A
6.3A/250V x2
PSH-1070A
PSH-2035A
PSH-3620A
PSH-6012A
6.3A/250V x2
0.5A/250V x1
15A/250V x1
PSH-10100A
PSH-2050A
PSH-3630A
PSH-6018A
6.3A/250V x3
0.5A/250V x1
20A/250V x1
Fuse
WARNING
•Make sure the correct type of fuse is installed
before powering up.
•Replace the fuse with the specified type and
rating only, for continued fire protection.
•Disconnect the power cord before fuse
replacement.
•Make sure the cause of the fuse blowout is
fixed before fuse replacement.
Cleaning PSH •Disconnect the power cord before cleaning.
•Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid
into PSH.
•Do not use chemicals or cleaners containing
harsh materials such as benzene, toluene,
PSH User Manual
8
xylene, and acetone.
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: < 85%
Altitude: < 2000m
Temperature: 0°C to 40°C
Input Breaker Capacity: Over 20A (PSH-10100A,
2050A, 3630A, 6018A)
This is a Class A product which may cause radio
interference in a domestic environment. In such
case, take adequate measures.
Operation
Environment
WARNING
(Note) EN 61010-1:2001 specifies the pollution degrees
and their requirements as follows. PSH 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
Relative Humidity: < 70%
Temperature: −10°C to 70°C

Safety Instructions
9
Power cord for the United Kingdom
When using PSH 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 colours
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 the letter E or by the earth symbol or coloured Green
or 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, cable of 0.75mm2 should be protected by a
3A or 5A fuse. Larger conductors would normally require 13A types,
depending on the connection method used.
Any moulded mains connector that requires removal /replacement must be
destroyed by removal of any fuse & fuse carrier and disposed of immediately,
as a plug with bared wires is hazardous if a engaged in live socket. Any
re-wiring must be carried out in accordance with the information detailed on
this label.

PSH Overview
11
PSH Overview
PSH Series are modular-type programmable
switching power supplies designed for broad
range of applications. The series consists of 12
models, output ranging from 360W to 1000W.
Switching technology and built-in PFC control
give PSH higher power efficiency, power density,
and power factor compared with other linear
power supplies. Protection mechanisms keep the
output voltage, current, and temperature within
limit. Remote control interface equipped with
SCPI command set and Lab-View Driver
facilitates ATE software development.
This chapter describes PSH series features and
appearances in a nutshell.
Main features Main Features ......................................... 12
Series lineup 360W..................................................... 13
720W..................................................... 13
1000/ 1080W.......................................... 13
Package
contents Main unit................................................ 14
AC input cable kit .................................... 14
Output connection kit............................... 15
Manual................................................... 15
Panel
descriptions Front Panel ............................................. 16
Rear Panel.............................................. 18
Display
descriptions Default display ........................................ 19
Menu mode display.................................. 20
PSH User Manual
12
Main Features
Performance •12 models with wide output range: 6~100A,
10~60V, and 360~1000W.
•High power factor with PFC control
•High efficiency power conversion
•Compact size, light weight
Operation •Constant voltage operation
•Constant current operation
•Output On/Off control
•Built-in buzzer
•Self test and calibration
•LCD display
Protection •Over voltage protection (OVP)
•Over current protection (OCP)
•Over temperature protection (OTP)
Interface •RS-232 (standard) / GPIB (optional) interface
•IEEE 488.2/SCPI compatible command set
•LabView driver
Optional items •GPIB remote control interface
•19 inch standard rack mounting

PSH Overview
13
PSH Series Lineup
PSH series consist of the following 12 models with various output
voltage and current ratings. For the detailed specifications, see
page71.
PSH-1036A
10V, 36A
PSH-2018A
20V, 18A
PSH-3610A
36V, 10A
PSH-6006A
360W
(Mainframe
only)
60V, 6A
PSH-1070A
10V, 70A
PSH-2035A
20V, 35A
PSH-3620A
36V, 20A
PSH-6012A
720W
(Mainframe +
one slave
module)
60V, 12A
PSH-10100A
10V, 100A
PSH-2050A
20V, 50A
PSH-3630A
36V, 30A
PSH-6018A
1000/ 1080W
(Mainframe +
two slave
modules)
60V, 18A
PSH User Manual
14
Package Contents
Check the contents before using PSH series. Contact your local
dealer in case there is a missing item.
Main unit
AC input cable
kit
•Cable gland
•Terminal cover
•AC power input cord

PSH Overview
15
Package Contents (cont.)
Output
connection kit
•Terminal cover
•Output cable screw
Manual •User manual (this document)
•Programming manual
PSH User Manual
16
Front Panel
1 LCD Display
Shows the output and the configuration status.
See page19 for details.
2 Power
Switch
On Off
3 Wheel knob
Sets parameters. Turn right: increase, turn left:
decrease.
4 Output
Switch
Turns the output On or Off. When On, the “OUT”
sign appears on the display.
Out On
OCP OUT
CV 2.58V 2.01A
Out Off
OCP
SET 2.58V 2.01A

PSH Overview
17
5 Vset/ Iset/
Enter key
Switches between voltage setting mode and
current setting mode, or confirm the entered
value in the menu mode (see page44).
Vset (edit Voltage)
OCP
SET 2.58V 2.01A
Iset (edit Current)
OCP
SET 2.58V 2.01A
6 F/C (Fine/
Coarse) key
Switches the editing location and resolution:
before (coarse) or after (fine) the decimal point.
Fine (after decimal)
OCP
SET 2.58V 2.01A
Coarse (before decimal)
OCP
SET 2.58V 2.01A
7 Menu key Enters into the menu mode. For details, see
page44.
Default mode
OCP OUT
CV 2.58V 2.01A
Menu mode (OVP setting)
Set OVP
* 21.10V
8 Local key Switches from remote control mode to local
operation mode (page56), OR releases OVP/OCP
error messages and go back to normal operation
(page37), OR enters the calibration mode when
pressed for more than 5 seconds (page61).
Error message example
OCP Error! Press
“Local” to reset
Calibration mode
Calibration
Voltage
PSH User Manual
18
Rear Panel
1 Ground
Terminal
Connect the output line shield (page25) and
the remote sensing line shield (page32).
2 Output
Terminal
Connect DUT (Device Under Test). For details,
see page24.
3 Sense Terminal
Connect the feedback line to compensate for
cable loss. For details, see page24 (theory),
page32 (cable connection).
4 RS232/ GPIB
Terminal
Connect the remote control line. For remote
control details, see page52. GPIB requires an
optional module. For installation details, see
the service manual.
Note: Only one interface module (RS232 or
GPIB) can be installed at a time.
5 AC input
Terminal
Connect the AC power input cable. For
details, see page22.

PSH Overview
19
Display
Default
display
Display mode
RMT ADRS OCP OUT
CV 10.10V 36.10A
A B C D
E F G
Editing mode
OCP
SET 10.10V 36.10A
A B C D
E F G
A RMT: remote control mode
(Nothing): panel operation mode
Not available in editing mode
B ADRS: RS-232 or GPIB address (available
in remote control)
Not available in editing mode
C OCP: Output Current Protection On
(Nothing): Output Current Protection Off
D OUT: Output On
(Nothing): Output Off
Not available in editing mode
E CV/CC: Current and Voltage display
mode (Constant Voltage/ Constant
Current)
SET: Current and Voltage editing mode
F Output Voltage readback value (display
mode)
Output Voltage setting value (editing
mode)
G Output Current readback value (display
mode)
Output Current setting value (editing
mode)
PSH User Manual
20
Display (cont.)
Menu mode
display
The following displays appear when pressing the
Menu key MENU . To move to the next configuration,
press the Menu key repeatedly. When inactive for
more than 5 seconds, the display goes back to the
default mode.
(Default display)
Output Voltage
Protection setting.
For details, see
page48.
Output Current
Protection setting.
For details, see
page49.
Display contrast
setting. For details,
see page50.
Buzzer setting. For
details, see page51.
Set OVP
21.10V
Set OCP
ON (OFF)
Set Contrast
70%
Set Buzzer
ON (OFF)
Interface RS232
Baud Rate 9600
OCP OUT
CV 2.58V 2.01A
Remote control
interface setting. For
details, see page52.