GW Instek PPX Series Owner's manual

Programmable High Precision DC
Power Supply
PPX Series
PROGRAMMING MANUAL
Rev. A
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.......................................................... 7
PPX Series Overview ..............................8
Appearance .......................................... 11
Theory of Operation ............................. 19
REMOTE CONTROL ....................................................... 29
Interface Configuration ........................ 31
Socket Server Examples ....................... 64
Command Syntax ................................. 68
Command List ..................................... 72
Status Register Overview ................... 130
Error List ........................................... 142
APPENDIX ....................................................................151
PPX Series Default Settings ............... 151
INDEX ..........................................................................154

PPX Series Programming 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 PPX 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 PPX.
Avoid severe impact or rough handling that
leads to damaging the PPX.
Do not discharge static electricity to the PPX.
Use only mating connectors, not bare wires, for
the terminals.
Do not disassemble the PPX unless you are
qualified.
Power Supply
CAUTION
WARNING
AC Input Voltage:
100Vac/120Vac/220Vac/240Vac, 50Hz/60Hz,
single phase
Frequency: 47Hz to 63Hz
Before connecting the power plug to an AC line
outlet, make sure the voltage selector switches
of the bottom panel in the correct position.
Disconnect power cord and test leads before
replacing fuse.
The fuse specification is as following:
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

PPX Series Programming Manual
6
Cleaning the PPX
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%~ 80% (no condensation)
Altitude: < 2000m
Temperature: 0°C to 40°C
(Pollution Degree) EN61010-1:2010 specifies the pollution degrees
and their requirements as follows. The PPX 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: -20°C to 70°C
Relative Humidity: 20 to 85%(no condensation)
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.

GETTING STARTED
7
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.
PPX Series Overview ............................................... 8
Series lineup.................................................................................................8
Main Features..............................................................................................8
Accessories ..................................................................................................9
Appearance ............................................................. 11
Front Panel ..................................................................................................11
Display Area ................................................................................................15
Rear Panel ....................................................................................................17
Theory of Operation ................................................ 19
Operating Description...............................................................................19
CC and CV Mode.......................................................................................20
Slew Rate......................................................................................................21
Bleeder Control...........................................................................................22
Alarms ..........................................................................................................23
Considerations ............................................................................................24
Grounding ...................................................................................................27

PPX Series Programming Manual
8
PPX Series Overview
Series lineup
The PPX series consists of 6 models, covering a number of different
current, voltage and power capacities:
Model name
Operation Voltage
Operation Current
Rated Power
PPX-1005
0-10V
0-5A
50W
PPX-2002
0-20V
0-2A
40W
PPX-2005
0-20V
0-5A
100W
PPX-3601
0-36V
0-1A
36W
PPX-3603
0-36V
0-3A
108W
PPX-10H01
0-100V
0-1A
100W
Main Features
Features
2.4" TFT-LCD Panel.
Preset memory function.
Output ON/OFF delay function.
CV, CC priority start function. (prevents
overshoot with output ON)
Adjustable voltage and current slew rates.
Bleeder circuit ON/OFF setting. (to prevent
over-discharging of batteries)
OVP, OCP, AC Alarm and OTP protection.
Supports test sequence.
Web server monitoring and control. (The
function is activated when connecting to LAN
Interface)
Analog monitor output.

GETTING STARTED
9
Remote sensing to compensate for voltage drop
in load leads.
Support K type thermocouple temperature
measurement.
With 4 measuring currents and Manual / Auto
shift function.
Interface
Built-in USB, RS-232/485 and LAN interface.
External analog control function.
Optional GPIB interface.
Accessories
Before using the PPX power supply unit, check the package
contents to make sure all the standard accessories are included.
Standard
Accessories
Part number
Description
Qty.
CD-ROM
User manual, Programming manual
1
Power Cord
1
GTL-104A
Test leads for PPX-1005/PPX-
2005/PPX-3603 (Binding Posts
Terminal), 1m, 10A
1
GTL-105A
Test leads for PPX-2002/PPX-3601,
1m, 3A
1
Short Bar (Binding Posts Terminal)
1
GTL-204A
Test leads for PPX-1005/PPX-
2005/PPX-3603 (European Type Jack
Terminal), 1m, 10A
1
GTL-203A
Test leads for PPX-2002/PPX-
3601/PPX-10H01 (European Type Jack
Terminal), 1m, 3A
1
GTL-201A
Ground lead for European Type Jack
Terminal
1

PPX Series Programming Manual
10
Optional
Accessories
Part number
Description
GRA-441-J
Rack for PPX (JIS)
GRA-441-E
Rack for PPX (EIA)
GTL-205A
Temperature probe adaptor with
thermocouple K type
GTL-246
USB Cable (USB 2.0 Type A- Type B Cable,
4P)
GTL-258
GPIB Cable, 2000mm
GTL-259
RS232 cable with DB9 connector to RJ45
GTL-260
RS485 cable with DB9 connector to RJ45
GTL-262
RS485 slave cable
Factory Installed
Options
Part number
Description
Option 1
GPIB interface