GW Instek ASD Series User manual

Programmable AC Power Supply
ASD-1900
USER MANUAL
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.

SAFETY INSTRUCTIONS
3
Table of Contents
SAFETY INSTRUCTIONS .................................................. 5
GETTING STARTED.......................................................... 9
Main Features.......................................................... 11
Appearance.............................................................. 13
INSTALLATION .............................................................. 18
Preparation for Use ................................................. 19
Requirements of Input Power .................................. 19
Input Connection ..................................................... 20
Output Connection .................................................. 22
Remote Sense Connection........................................ 23
Power on ................................................................. 25
LOCAL OERATION ......................................................... 27
Operation through Keypad and Knob ....................... 29
Menu Tree ............................................................... 31
Main Menu Setting .................................................. 32
Advanced Parameter Setting Menu .......................... 38
SETUP Function....................................................... 39
CONFIG Function .................................................... 58
APPLICAION.................................................................. 69
LIST Mode ............................................................... 70
PULSE Mode............................................................ 75
STEP Mode .............................................................. 78
SYNTHESIS Self-Defined Waveform Mode ............... 81
SAVE AND RECALL......................................................... 84
System parameter Save and Recall........................... 85

ASD-1900 User Manual
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REMOTE OPERAION.......................................................87
Set GPIB address and RS-232 Parameters ................ 88
Programming........................................................... 90
Command List ......................................................... 93
Command for Remote Control ................................. 96
APPENDIX ....................................................................128
Protection .............................................................. 130
Specifications ........................................................ 132
Certificate Of Compliance ...................................... 136
TTL Pin Assignment............................................... 137
Built In Waveforms ................................................ 138

SAFETY INSTRUCTIONS
5
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 ASD-1900 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.

ASD-1900 User Manual
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Safety Guidelines
General
Guideline
CAUTION
Do not place any heavy object on the ASD-1900.
Avoid severe impact or rough handling that
leads to damaging the ASD-1900.
Do not discharge static electricity to the ASD-
1900.
Use only mating connectors, not bare wires, for
the terminals.
Do not block the cooling fan opening.
Do not disassemble the ASD-1900 unless you
are qualified.
(Measurement categories) EN61010-1:2010 and EN61010-2-030
specifies the measurement categories and their requirements as
follows. The ASD-1900 falls under category II.
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.
0 is for measurements performed on circuits not directly
connected to Mains.
Power Supply
WARNING
AC Input voltage range: 85Vac~265Vac
Frequency: 47Hz to 63Hz
To avoid electrical shock connect the protective
grounding conductor of the AC power cord to
an earth ground.
Cleaning the
ASD-1900
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.

SAFETY INSTRUCTIONS
7
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Relative Humidity: 20%~ 85% (no
condensation)
Altitude: < 2000m
Temperature: 0°C to 50°C
(Pollution Degree) EN61010-1:2010 and EN61010-2-030 specifies
the pollution degrees and their requirements as follows. The ASD-
1900 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: -25°C to 70°C
Relative Humidity: ≤90%(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.

ASD-1900 User Manual
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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.

GETTING STARTED
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GETTING STARTED
This manual describes the specifications,
installation and operation instructions of GW
ASD-1900 Programmable AC Power Source. In
this manual the term, AC Source, stands for GW
ASD-1900 Programmable AC Source.
The series of AC source is a high efficiency
programmable ac power source, which provides
low distortion sinusoid AC voltage output and
measurement. Stable voltage and frequency are
obtained through accurate digital calculation
provided by DSP IC. Remote programming is
accomplished either by the GPIB bus or the RS-
232C serial port.

ASD-1900 User Manual
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Main Features .......................................................... 11
Accessories ........................................................................................12
Appearance.............................................................. 13
Front Panel........................................................................................13
Rear Panel..........................................................................................16