GW Instek GPP-3650 User manual

Programmable DC Power Supply
GPP-3060/GPP-6030/GPP-3650
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.

SAFETY INSTRUCTIONS
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Table of Contents
SAFETY INSTRUCTIONS .................................................. 6
Safety Symbols........................................................... 6
Safety Guidelines ....................................................... 7
Power cord for the United Kingdom ......................... 10
Introduction............................................................. 12
Key Features ............................................................ 15
Front Panel .............................................................. 17
Rear Panel................................................................ 23
Constant Voltage/Constant Current Crossover
Characteristics ......................................................... 25
GETTING STARTED........................................................ 26
Start Up ................................................................... 27
Load Connection ...................................................... 28
Select front/rear panel output.................................. 30
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 .......................................................... 48
Sequence Function ................................................... 52
Set Sequence Output............................................... 52
Set Group Parameter............................................... 55
Construct Templet................................................... 56
Menu Tree................................................................ 59
Save and Recall ........................................................ 61
Delay Function ......................................................... 64

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Set Delay Output ..................................................... 64
Set Group Parameter............................................... 67
Menu Tree................................................................ 70
Save and Recall ........................................................ 72
Monitor Function ..................................................... 75
Set Monitor.............................................................. 75
Recorder Function.................................................... 79
Set Recorder............................................................. 79
External I/O Control................................................. 83
Key Function Description ........................................ 84
FILE OPERATION ........................................................... 87
Save/Recall .............................................................. 88
Restore Factory Default Settings .............................. 91
SYSTEM SETTINGS ........................................................ 92
System Information ................................................. 93
System Settings ....................................................... 94
Firmware Upgrading ................................................ 96
Description of Using Flash Drive ............................. 97
REMOTE CONTROL ....................................................... 99
Connection Usage .................................................. 101
RS-232 ...................................................................... 102
USB .......................................................................... 104
GPIB......................................................................... 105
LAN .......................................................................... 107
Command Syntax ................................................... 113
Command List ....................................................... 117
Measurement Instructions...................................... 117
Display Functions .................................................... 117
Output Commands ................................................. 117

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Source and Load Commands.................................. 118
Status Commands ................................................... 123
System Commands ................................................. 124
System Related Commands .................................... 125
IEEE488.2 Common Commands ............................ 126
Command Details .................................................. 127
Measurement Commands ...................................... 127
Display Commands ................................................. 129
Output Commands ................................................. 131
Source and Load Commands.................................. 136
Status Commands ................................................... 180
System Commands ................................................. 187
System Related Commands .................................... 196
SCPI Status Registers SCPI .................................... 197
Event Registers ........................................................ 199
Enable Registers ...................................................... 199
Status Byte Register................................................. 199
Standard Event Register .......................................... 201
Status Byte Register Commands............................. 202
Standard Event Register Commands...................... 203
Other Status Register Commands .......................... 205
Errors..................................................................... 206
Error Message.......................................................... 206
Command Errors ..................................................... 206
APPENDIX ....................................................................210
Replacing the Fuse ................................................. 210
Specifications ........................................................ 211
Optional Accessories ............................................. 214
Declaration of Conformity ...................................... 215

SAFETY INSTRUCTIONS
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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.

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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.

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(Pollution Degree) EN 61010-1:2010 specifies
pollution degrees and their requirements as
follows.Pollution refers to “addition of foreign
matter, solid, liquid, or gaseous (ionized gases),
that may produce a reduction of dielectric
strength or surface resistivity”. The GPP Series
falls under degree 2.
․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.
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.
Fuse
WARNING
Fuse type: 100V/120V：T12A/250V，
220V/230V：T6.3A/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.

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Cleaning the
power supply
Disconnect the power cord before cleaningit .
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid
into it.
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
Storage
environment
Location: Indoor
Relative Humidity: < 70%
Temperature: -10°C to 70°C

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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.

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OVERVIEW
This chapter contains a brief introduction to GPP-
3060/GPP-6030 including the main features and
an overview of the front and rear panel. Use the
Getting Started chapter on page 26 to start up
instructions and how to setup the appropriate
operation environment.
Key Features ............................................................ 15
Front Panel .............................................................. 17
Rear Panel................................................................ 23
Constant Voltage/Constant Current Crossover
Characteristics ......................................................... 25

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Introduction
Overview
The GPP-3060/GPP-6030/GPP-3650 regulated
DC power supply series are adjustable,
multifunctional work stations. It has three
independent outputs: two with adjustable
voltage levels and one with fixed level
selectable from 1.8V, 2.5V, 3.3V and 5V.
It can be used for logic circuits where various
output voltage or current are needed, and for
tracking mode definition systems where plus
and minus voltages with insignificant error are
required.
Independent /
Tracking Series /
Tracking Parallel
The three output modes of it, independent,
tracking series, and tracking parallel, can be
selected through pressing the TRACKING key
on the front panel. In the independent mode,
the output voltage and current of each channel
are controlled separately. The isolation degree,
from output terminal to chassis or from output
terminal to output terminal, is DC500V.
In the tracking modes, both the CH1 and CH2
outputs are automatically connected in series
or parallel; no need to connect output leads. In
the series mode, the output voltage is doubled;
in the parallel mode, the output current is
doubled.

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Load Mode
It has additional Load function on both CH1 &
CH2 with 3 modes: CV (Constanct Voltage),
CC (Constant Current) and CR (Constant
Resistance), all of which can be selected
through the function keys on the front panel.
Voltage, current and resistance can be well
regulated in each mode, respectively.
Constant Voltage/
Constant Current
Each output channel is completely
transistorized and well-regulated, and works in
constant voltage (CV) or constant current (CC)
mode. Even at the maximum output current, a
fully rated, continuously adjustable output
voltage is provided. For a big load, the power
supply can be used as a CV source; while for a
small load, a CC source. When in the CV mode
(independent or tracking mode), output
current (overload or short circuit) can be
controlled via the front panel. When in the CC
mode (independent mode only), the maximum
(ceiling) output voltage can be controlled via
the front panel. The power supply will
automatically cross over from CV to CC
operation when the output current reaches the
target value. The power supply will
automatically cross over from CC to CV when
the output voltage reaches the target value. For
more details about CV/CC mode operation,
see page 25.
Automatic
tracking mode
The front panel display (CH1, CH2) shows the
output voltage or current. When operating in
the tracking mode, the power supply will
automatically connect to the auto- tracking
mode.

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Display Change
Function
It provides up to 6 display types, each of which
can be well selected via setting. For details, see
page 32.
Output Waveform
Function
Under Source mode, user can customize a
certain V/I sequential waveform output. Under
Load mode, it is programmable for dynamic
load (below 1Hz). For details, see page 52.
Front and rear
output function
For the convenience of customers, GPP can be
operated by the panel menu or remote
command, so that it can be output on the front
and rear panels, please refer to page 30.
Remote Control
To meet the various needs of customers, the
GPP is designed for USB, GPIB ,LAN and RS-
232 remote control. For details, see page 99.
Additional
Function
Control signal of external switch is reserved for
user. For details, see page 83.

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Key Features
Features
Multiple Outputs:
Constant voltage and constant current operation
(CV/CC).
Low noise, thermostatically controlled fan.
Compact, lightweight, standard rack mount
comformity 3U, half Rack.
4.3 inch TFT display.
Operation
Digital panel control.
Output on/off control (ON/OFF), and each
channel can be controlled separately.
Digital voltage and current settings. (Key &
Encode)
10 groups of save/recall settings and 2 groups of
power-on settings.
10 groups of save/recall Sequence.
10 groups of save/recall Delay.
10 groups of save/recall Record.
CH1/CH2 workable in Load Mode
6 types display modes available with 4 contents
and 2 waveforms respectively
Input/Output terminal (Control I/O)
Alarm buzzer (Beeper).
Key lock function (LOCK).
Front and rear output function
Multiple remote control interfaces (standard:
RS-232, USB; optional: GPIB, LAN)

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Protection
Features
Overvoltage and overcurrent protection (OVP/
OCP)
Overtemperature protection (OTP).
Polarity Reverse Protection
Overload Protection (OPP in Load mode)
Interface
Remote Control RS-232 (standard)
USB remote control. (standard)
Control I/O (standard)
LAN remote control (optional)
GPIB & LAN remote control (optional)

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Front Panel
Display
Display
Interface
(Take GPP-3060 model as example)
Number
Pad
LCD
Scroll wheel
Arrow keys
Pad
Power button Front output terminals Funtion keys USB host

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Channel
distribution
Channel number and distribution vary by
models with different colors identifications:
CH1: Yellow CH2: Blue CH3: Pink
CH1 is master and CH2 becomes yellow under
tracking series and tracking parallel modes.
Single channel
display
Channel/
Status
Power
display
V/I
setting
Voltage
display
Current
display
OVP/OCP
setting area
Channel no.
Color of channel remains the origanl when
not in the state of setting.
Color of channel blinks between the original and
orange when being set.
Channel status
Display active channel state
Power supply: CH1/CH2: green or red
Load Mode: CH1/CH2: orange
Voltmeter
Indicators
Displays the output voltage with up to 6 digits
of resolution. The default units are Volts (V).
CH1：
CH2：
CH3：
Ammeter
Indicator
Displays the output current with up to 5 digits
of resolution. The default units are ampere (A).

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CH1:
CH2：
CH3：None
Setting Display
Displays the voltage and current settings.
CH1/CH2:
CH3: displays setting of voltage only
Display OVP/OCP settings
CH1/CH2: , The CH3 OVP is a
fixed value (approx. 5.5V), non-configurable and
with only on or off switch available for user.
OCP is available only for USB output port
(approx. 3.1A)
Status
Indicator
Display the set function/remote control interface
: The active channel under setting status
: The status of OTP protection mode
: The status of USB flash drive connected
: USB remotely disconnected
: USB remotely connected
: The status of control I/O connected
Others: when operating in the series/parallel
tracking mode, the corresponding SER/PAR icons
appear on the display.
when Sequence/Delay/Monitor/Recorder is
activated, the corresponding SEQ/DLY/MON/
REC icons appear on the display.
Function Keys

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Power Button
Turns the power on or off.
On:
Off:
Channel select
buttons
Each channel has its own
button and promptly
switchable among CH1-CH3
setting.
Output buttons
Individual
output
The ON/OFF button is
operational individually by
each channel. The Output key
will light up when the output is
on.
ON:
Output all
All ON:
Number pad
For parameter value setting
Scroll wheel &
Arrow keys
Scroll wheel is used to set each
parameter value, whilst arrow
keys are used for parameter,
menu selection and
voltage/current fine
adjustment. It is used to switch
or operate the displayed
waveforms under diagram
display mode.