GWinsTek GPP-1326, GPP-2323, GPP-3323, GPP-4323 User Manual

Programmable DC Power Supply

GPP-1326/GPP-2323/GPP-3323/GPP-4323

User Manual

GW INSTEK PART NO. 82PP343230ED1

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

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 ......... 42

Load Function .......................................................... 46

Sequence Function ................................................... 50

Set Sequence Output ............................................... 50

Set Group Parameter ............................................... 52

Construct Templet ................................................... 54

Menu Tree ................................................................ 57

Save and Recall ........................................................ 59

GPP Series User Manual

Delay Function ......................................................... 62

Set Delay Output ..................................................... 62

Set Group Parameter ............................................... 65

Menu Tree ................................................................ 68

Save and Recall ........................................................ 70

Monitor Function ..................................................... 72

Set Monitor .............................................................. 73

Recorder Function .................................................... 75

Set Recorder ............................................................. 76

Enternal I/O Control ................................................ 79

Key Function Description ........................................ 81

FILE OPERATION ........................................................... 83

Save/Recall .............................................................. 84

Restore Factory Default Settings .............................. 87

SYSTEM SETTINGS ........................................................ 88

System Information ................................................. 89

System Settings ....................................................... 90

Firmware Upgrading ................................................ 92

Description of Using Flash Drive ............................. 93

REMOTE CONTROL ....................................................... 95

Connection Usage .................................................... 97

RS-232 ...................................................................... 98

USB .......................................................................... 99

GPIB ......................................................................... 101

LAN .......................................................................... 102

Command Syntax ................................................... 108

Command List ....................................................... 112

Measurement Instructions ...................................... 112

Display Functions .................................................... 112

Table of Contents

Output Commands ................................................. 112

Source and Load Commands .................................. 113

Status Commands ................................................... 118

System Commands ................................................. 119

System Related Commands .................................... 120

IEEE488.2 Common Commands ............................ 120

Command Details .................................................. 121

Measurement Commands ...................................... 121

Display Commands ................................................. 123

Output Commands ................................................. 125

Source and Load Commands ............................... 129

Status Commands ................................................... 170

System Commands ................................................. 176

System Related Commands .................................... 185

SCPI Status Registers SCPI .................................... 186

Event Registers ........................................................ 188

Enable Registers ...................................................... 188

Status Byte Register ................................................. 188

Standard Event Register .......................................... 190

Status Byte Register Commands............................. 191

Standard Event Register Commands ...................... 192

Other Status Register Commands .......................... 194

Errors ..................................................................... 195

Error Message .......................................................... 195

Command Errors ..................................................... 195

APPENDIX .................................................................... 199

Replacing the Fuse ................................................. 199

Specifications ........................................................ 200

Optional Accessories ............................................. 203

Declaration of Conformity ...................................... 204

GPP Series User Manual

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

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.

SAFETY INSTRUCTIONS

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.

Safety Guidelines

GPP Series User Manual

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

(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

GPP Series User Manual

Green/ Yellow:

Earth

Blue:

Neutral

Brown:

Live (Phase)

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:

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 0.75mm2 should 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.

OVERVIEW

This chapter contains a brief introduction to GPP series including the main features and an overview of the front and rear panel. Use the Getting Started chapter on page 27 to start up instructions and how to setup the appropriate operation environment.

Introduction ............................................................. 12

Key Features ............................................................ 15

Front Panel .............................................................. 17

Rear Panel................................................................ 24

Constant Voltage/Constant Current Crossover

Characteristics ......................................................... 26

GPP Series User Manual

Overview

The GPP series regulated DC power supply series are light weight, adjustable, multifunctional work stations. The GPP-1326 has a 1 independent adjustable voltage outputs with sense.The GPP-2323 has a 2 independent adjustable voltage outputs. The GPP-3323 three independent outputs: two with adjustable voltage levels and one with fixed level selectable from 1.8V, 2.5V, 3.3V and 5V. The GPP-4323 has four independent voltage outputs that are all fully adjustable.

The GPP series 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 GPP series, 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 500V.

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.

Introduction

OVERVIEW

Load Mode

The GPP series models have 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 26.

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.

GPP Series User Manual

Display Change Function

The GPP series provides up to 7 display types, each of which can be well selected via setting. For details, see page 32.

Output Waveform Function

Under Source mode of the GPP series, 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 50.

Remote Control

To meet the various needs of customers, the GPP is designed for USB, GPIB and LAN remote control. For details, see page 95.

Additional Function

Control signal of external switch is reserved for user. For details, see page 79.

OVERVIEW

Features

 Multiple Outputs:

GPP-1326：32V/6A x 1

GPP-2323：32V/3A x 2 (CH1/CH2)

GPP-3323：32V/3A x 2 (CH1/CH2)

1.8V/2.5V/3.3V/5V/5A x 1 (CH3)

USB Port Output：3A

GPP-4323：32V/3A x 2 (CH1/CH2)

5V/1A x 1 (CH3)，15V/1A x 1 (CH4)

 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.

Key Features

GPP Series User Manual

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

 7 types display modes available with 5 contents

and 2 waveforms respectively

 Input/Output terminal (Control I/O)

 Alarm buzzer (BEEP).

 Key lock function (LOCK).

 Multiple remote control interfaces (standard:

RS232, USB; optional: GPIB, LAN)

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)

OVERVIEW

LCD

Number

pad

Scroll wheel/

Arrow keys

Function

keys

USB host

Front panel

output terminals

Power button

Display

Display Interface

(Take GPP-4323 model as example)

Front Panel

*The panel above is the example of GPP-4323. For other models, refer to page 23.

GPP Series User Manual

Channel distribution

Channel number and distribution vary by models with different colors identifications: CH1: Yellow CH2: Blue CH3: Pink CH4：

Green 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/CH3/CH4: 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).

OVERVIEW

CH1：

CH2：

CH3： (GPP-4323)

(GPP-3323)

CH4：

Ammeter Indicator

Displays the output current with up to 5 digits of resolution. The default units are ampere (A).

CH1:

CH2：

CH3： (GPP-4323)

CH4：

Setting Display

Displays the voltage and current settings.

CH1/CH2/CH3/CH4: CH3(GPP-3323) displays setting of voltage only

Display OVP/OCP settings

CH1/CH2/CH3/CH4: The CH3 OVP of GPP-3323 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)

GPP Series User Manual

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

Power Button

Turns the power on or off.

On:

Off:

Channel select buttons

Each channel has its own

button and promptly

switchable among CH1-CH4

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:

OVERVIEW

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.

Function keys

The 6 function keys (F1-F6)

display varied functions per

different opertations.

System key

It is used to set functions

including Interface, Beep,

Backlight, etc. For details, refer

to page 90.

Advance key

It is used for certain advanced

functions like Sequence, Delay,

Monitor, Recorder, etc.

Memory key

It is used to operate several

functions including save and

recall, etc., for set parameters.

For details, refer to page 83.

Lock key

It is used to disable all the

panel keys except for the

Output key.

GPP Series User Manual

Unlock

Press the F6 button to unlock,

which can disable remote

control and return to panel

operation.

Terminals

CH1 terminal

Power output terminal or load

input terminal

CH2 terminal

Power output terminal or load

input terminal

CH3 terminal

Power output terminal

Power output terminal (GPP-

3323 only)

Warning: The output current from the 2 terminals should

Not exceed 5A for GPP-3323.

CH4 terminal

Power output terminal

GND terminal

Ground terminal

Voltage feedback terminal (SENSE)

Sense terminal of power

output (1326 only)

OVERVIEW

Panels of other models:

GPP-1326

GPP-2323

GPP-3323

GPP Series User Manual

Terminals

Alternate input switch

AC voltage selection:

100V/120V/220V/230V

±10%, frequency 50/60Hz

AC input socket and line fuse

The AC input accepts

100V/120V/220V/230V

AC. The frequency is

50Hz/60Hz.

Fuse:

100V/120V: T6.3A/250V，

220V/230V :T3.15A/250V，

slow-blow type, See page

199 for details.

USB port

USB device port for remote

control. See page 95 for

details.

Rear Panel

OVERVIEW

GPIB port

GPIB slave port for remote

control. Abides to

IEEE488.2 (SCPI) protocol.

See page 101 for details.

LAN port

LAN port for remote

control. See page 102 for

LAN setting and operation

details.

RS 232 port

RS232 port for remote

control. See page 98 for

details.

Heat sink fan

Control I/O port

5 ports in all for

input/output control. See

page 79 for details of

configuration.

GPP Series User Manual

Background

The unit will switch automatically between

constant voltage and constant current

according to changes in the load.

CV mode

When the load current is less than the current

setting, the unit operates in constant voltage

mode, changing the current level according to

the load but maintaining the set voltage level

until the current reaches the set current level.

The status indicator will show CV on the LCD

when in CV mode.

Constant Current Mode

When the output current reaches the set

current level, the unit switches operation to

constant current mode. The status indicator

will show CC on the LCD display. In CC mode,

the current level is maintained and the voltage

level is limited to less than the set voltage level

to limit the output power from an overload.

When the current drops below the set current

level, the unit will revert back to CV mode.

Diagram

Vmax

Imax

Constant

Voltage

Constant

Current

Vout

Iout

Constant Voltage/Constant Current Crossover Characteristics

GETTING STARTED

This chapter describes the start up procedures and the preparation that is necessary before operating the power supply.

Start Up ................................................................... 28

Load Connection ...................................................... 29

Turning the Output On/Off ...................................... 31

GPP Series User Manual

Checking the AC Voltage

Before the power is turned

on, confirm that the input

power supply meets the

following conditions:

100V/120V/220V/230V

±10%，50/60Hz

Connecting the AC power cord

The fuse is a slow-blow fuse.

3.15A（220V/230V）

6.30A（100V/120V），

Confirm that the fuse is of the

correct type and rating before

connecting the power cord.

Turning the power on

Press the power button.

Turning the power off

To turn the power off, press

the power button again.

Start Up

GETTING STARTED

Recommended Cables

Model

Specification

Usage

GTL-

104A

10A

Front panel terminal

GTL-105A

Sense（1326 only）

Front panel wiring

Use the GTL-104A cables for

the front panel source

connections.

USB Type A only

(Greater than 4A)

Use the GTL-105A cables for

the GPP-1326 sense

connections. Or connect + to

S+, - to S- terminal with a

short bar.

Caution

For safety considerations, please keep in mind

that the wiring must be equivalent to the wiring

on the front terminals.

Wire Gauge

Load wires must have enough current capacity

to minimize cable loss and load line impedance.

Voltage drop across a wire should not excess

0.5V. The following list is the wire current

rating at 450A/cm2.

Wire Size(AWG)

Maximum Current (A)

2.5 18

Load Connection

GPP Series User Manual

6 14

10 12

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