3.PRECAUTIONS BEFORE OPERATION…….…………...
3-1. Unpacking the Instrument……………….………….….
3-2. Checking the Line Voltage…………………..………….
3-3. Environment……………………………………..……...
4.PANEL INTRODUCTION……………………..…………...
5.
OPERATION METHOD………………………………...….
5-1. Output Voltage/Current Setting…………………..……
5-2. Over Voltage/Current Protection Setting……………...
5-3. The Display Contrast Setting.…………………………..
5-4. The Buzzer Setting………………………………………
5-5. GPIB/RS-232 Interface Setting…………………………
5-6. The Maximum Setting Value…………………………...
5-7. Test Lead………………………………………………...
5-8. The Setting for the GPIB and RS232 Interface………..
6.
MAINTENANCE………………………..…………………..
6-1. Fuse Replacement……………………………………….
6-2. Line Voltage Conversion………………………………..
6-3. Adjustment and Calibration……………………………
6-4. Cleaning…………………………………………………
7.
THE SYSTEM DIAGRAM AND DESCRIPTION………..
7-1.Block Diagram…………………………………………...
7-2.The Operation of the whole circuit……………………...
1
1
1
3
5
5
5
6
7
10
10
11
12
12
12
13
13
13
14
14
14
15
18
19
19
20
USER MANUAL
SAFETY TERMS AND SYMBOLS
These terms may appear in this manual or on the product:
WARNING. Warning statements identify condition or
practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or
practices that could result in damage to this product or
other property.
The following symbols may appear in this manual or on the product:
DANGERATTENTIONProtectiveEarth (ground) Frame or Chassis
High Voltagerefer to ManualConductorTerminalTerminal
Terminal
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PSS-3203/2005 PROGRAMMABLE POWER SUPPLY
PSS-3203/2005 PROGRAMMABLE POWER SUPPLY
USER MANUAL
FOR UNITED KINGDOM ONLY
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
As the colours of the wires in main leads may not correspond with the
colours marking identified in your plug/appliance, proceed as follows:
USER MANUAL
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, cable of
0.75mm
2
should be protected by a 3A or 5A fuse. Larger conductors
would normally require 13A types, depending on the connection
method used.
Any moulded mains connector that requires removal /replacement
must be destroyed by removal of any fuse & fuse carrier and disposed
of immediately, as a plug with bared wires is hazardous if a engaged
in live socket. Any re-wiring must be carried out in accordance with
the information detailed on this label.
The wire which is coloured Green & Yellow must be connected to the
Earth terminal marked with the letter E or by the earth symbol
or coloured Green or 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.
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PSS-3203/2005 PROGRAMMABLE POWER SUPPLY
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USER MANUAL
Declaration of Conformity
We
GOOD WILL INSTRUMENT CO., LTD.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan
GOOD WILL INSTRUMENT (SUZHOU) CO., LTD.
No.69 Lushan Road, Suzhou New Distri ct Jiang su, Ch ina .
declare that the below mentioned product
PSS-2005, PSS-3203
are herewith confirmed to comply with the requirements set out in the Council Directive on
the Approximation of the Law of Member States relating to Electromagnetic Compatibility
(89/336/EEC, 93/68/EEC)and Low Voltage Equipment Directive(73/23/EEC, 93/68/EEC).
For the evaluation regarding the Electromagnetic Compatibility and Low Voltage
Equipment Directive, the following standards were applied:
◎ EMC
EN 61326-1:Electrical equipment for measurement, control and laboratory use –– EMC
Conducted and Radiated Emissions
EN 55011: 1991+A1: 1997+A2: 1996
Current Harmonic
EN 61000-3-2: 1995+A1: 1998+A2: 1998 +A14: 2000
Voltage Fluctuation
EN 61000-3-3: 1995
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◎ Safety
Low Voltage Directive 73/23/EEC & amended by 93/68/EEC
IEC/EN 61010-1: 2001
requirements (1997+A1: 1998)
Electrostatic Discharge
EN 61000-4-2: 1995
Radiated Immunity
EN 61000-4-3: 1996
Electrical Fast Transients
EN 61000-4-4: 1995
Surge Immunity
EN 61000-4-5: 1995
Conducted Susceptibility
EN 61000-4-6: 1996
Voltage Dips/ Interrupts
EN 61000-4-11: 1994
USER MANUAL
1. PRODUCT INTRODUCTION
1-1.Description
PSS-series Programmable Power Supply is controlled by Micro
Processor Unit (MPU) that can easily connect communi cation interfa ce
RS-232 or GPIB to computer in order to satisfy users’ demand for
auto-testing and auto-control.
The voltage and current are completely controlled by a 12 bits D/A
Converter with higher resolution and accuracy. Also, the digitalization of
system makes a speedy, precise and convenient input of information
controlled by keyboard and wheel knob.
The adjustment of voltage/current is made by software calibration
without man-made error that will increase the preciseness of the
instrumen t .
The function of Over Voltage Protection (OVP) and Over Current
Protection (OCP) is set with software and detected with hardware to
achieve protected function precisely and speedily in order to secure user s
from danger by using the instrument.
1-2. Feature
1) An overall digitalization of programmable interface with high
resolution.
2) The 16×2 LCD Display.
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3) High stability and low draft.
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PSS-3203/2005 PROGRAMMABLE POWER SUPPLY
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USER MANUAL
4) The function of over voltage/current/temperature pro tection.
5) Intelligent control fan (Vary with different output power.)
6) Warning signal by the built-in Buzzer.
7) Step by step calibration procedure.
8) Brand new panel design and the 1/4 rack size reduction volume
design.
9) Wheel knob of Fine and Coarse.
10) IEEE-488.2 and SCPI compatible command setting.
11) Correspond to CE safety regulation.
USER MANUAL
2.TECHNICAL SPECIFICATIONS
SPECIFICATIONSPSS-3203PSS-2005
Output
Load Effect
Source Effect
Resolution
Program
Accuracy
(25±5℃)
Ripple & Noise
(20Hz~20MHz)
Temperature
Coefficient
(0~40℃)
Resolution
Readback
Accuracy
(25±5℃)
Response Time
Voltage Up
Voltage Down
Readback
Temperature
Coefficient
Drift
Voltage
Current
OVP
Voltage
Current
Voltage
Current
Voltage
Current1mA(2mA rating current>3.0A)
OVP10mV
Voltage