GW Instek GPP-3323 User manual

Programmable DC Power Supply
GPP-1326/GPP-2323/GPP-3323/GPP-4323
User Manual
ISO-9001 CERTIFIED MANUFACTURER

Copyright Statement
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 .................................................. 6
Safety Symbols...........................................................6
Safety Guidelines ....................................................... 7
Power cord for the United Kingdom ......................... 10
OVERVIEW .................................................................... 11
Introduction............................................................. 12
Key Features ............................................................ 15
Front Panel .............................................................. 17
Rear Panel................................................................ 24
Constant Voltage/Constant Current Crossover
Characteristics ......................................................... 26
GETTING STARTED........................................................ 27
Start Up ................................................................... 28
Load Connection ...................................................... 29
Turning the Output On/Off ...................................... 31
BASIC OPERATION ........................................................ 32
Display Change ........................................................ 33
Source Function ....................................................... 36
Independent Output Mode ..................................... 41
Tracking Series and Tracking Parallel Modes......... 43
Load Function .......................................................... 46
Sequence Function ................................................... 50
Set Sequence Output............................................... 51
Set Group Parameter............................................... 53
Construct Templet................................................... 55
Menu Tree................................................................ 58
Save and Recall ........................................................ 60

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Delay Function ......................................................... 63
Set Delay Output ..................................................... 63
Set Group Parameter............................................... 66
Menu Tree................................................................ 68
Save and Recall ........................................................ 71
Monitor Function ..................................................... 73
Set Monitor.............................................................. 74
Recorder Function.................................................... 76
Set Recorder............................................................. 77
Enternal I/O Control ................................................ 80
Key Function Description ........................................ 82
FILE OPERATION ........................................................... 84
Save/Recall .............................................................. 85
Restore Factory Default Settings .............................. 88
SYSTEM SETTINGS ........................................................ 89
System Information ................................................. 90
System Settings ....................................................... 91
Firmware Upgrading ................................................ 93
Description of Using Flash Drive ............................. 94
REMOTE CONTROL ....................................................... 96
Connection Usage .................................................... 98
RS-232 ...................................................................... 99
USB .......................................................................... 100
GPIB ......................................................................... 102
LAN .......................................................................... 103
Command Syntax ................................................... 109
Command List ....................................................... 113
Measurement Instructions...................................... 113
Display Functions .................................................... 113

Table of Contents
5
Output Commands ................................................. 113
Source and Load Commands.................................. 114
Status Commands ................................................... 119
System Commands ................................................. 120
System Related Commands .................................... 121
IEEE488.2 Common Commands ............................ 121
Command Details .................................................. 123
Measurement Commands ...................................... 123
Display Commands ................................................. 125
Output Commands ................................................. 127
Source and Load Commands............................... 131
Status Commands ................................................... 174
System Commands ................................................. 180
System Related Commands .................................... 189
SCPI Status Registers SCPI .................................... 190
Event Registers ........................................................ 192
Enable Registers ...................................................... 192
Status Byte Register................................................. 192
Standard Event Register .......................................... 194
Status Byte Register Commands............................. 195
Standard Event Register Commands ...................... 196
Other Status Register Commands .......................... 198
Errors..................................................................... 199
Error Message.......................................................... 199
Command Errors ..................................................... 199
APPENDIX ....................................................................203
Replacing the Fuse ................................................. 203
Specifications ........................................................ 204
Optional Accessories ............................................. 207
Declaration of Conformity ...................................... 208

GPP Series User Manual
6
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 symbols may appear in the 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 GPP or to other
properties.
DANGER High Voltage
Attention Refer to the Manual
Protective Conductor Terminal
Earth (ground) Terminal
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 INSTRUCTIONS
7
Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the unit.
Avoid severe impact or rough handling that
leads to damaging the unit.
Do not discharge static electricity to the unit.
Do not block the cooling fan opening.
Do not perform measurements on circuits that
are directly connected to mains power.
Do not disassemble the GPP unless you are
qualified.
(Measurement categories) EN 61010-1:2010
specifies the measurement categories and their
requirements as follows. The GPP Series falls
under category I.
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:
100V/120V/220V/230V ±10%
Frequency: 50Hz/60Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.

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8
Fuse
WARNING
Fuse type: 100V/120V：T6.3A/250V，
220V/230V：T3.15A/250V
To prevent fire, replace the fuse only with the
specified type and rating.
Disconnect the power cord before replacing the
fuse.
Make sure the cause of fuse blowout is fixed
before replacing the fuse.
Cleaning the
power supply
Disconnect the power cord before cleaning the
oscilloscope.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid
into the oscilloscope.
Do not use chemicals containing harsh products
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: < 80%
Altitude: < 2000m
Temperature: 0° C to 40° C

SAFETY INSTRUCTIONS
9
(Pollution Degree) EN 61010-1:2010 specifies
pollution degrees and their requirements as
follows. The GPP Series 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

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10
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.