GW Instek PSS User Manual

PSS-3203/2005 PROGRAMMABLE POWER SUPPLY

USER MANUAL

CONTENTS PAGE

1. PRODUCT INTRODUCTION......................... ........... ........... ..

1-1. Description……………………………………………… 1-2. Feature…………………………………………………...

2. TECHNICAL SPECIFICATIONS…………………………

3. PRECAUTIONS BEFORE OPERATION…….…………... 3-1. Unpacking the Instrument……………….………….…. 3-2. Checking the Line Voltage…………………..…………. 3-3. Environment……………………………………..……...

4. PANEL INTRODUCTION……………………..…………...

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………..

MAINTENANCE………………………..………………….. 6-1. Fuse Replacement………………………………………. 6-2. Line Voltage Conversion……………………………….. 6-3. Adjustment and Calibration…………………………… 6-4. Cleaning…………………………………………………

THE SYSTEM DIAGRAM AND DESCRIPTION……….. 7-1.Block Diagram…………………………………………... 7-2.The Operation of the whole circuit……………………...

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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:

DANGER ATTENTION Protective Earth (ground) Frame or Chassis High Voltage refer to Manual Conductor Terminal Terminal

Terminal

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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

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 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

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

USER MANUAL

Declaration of Conformity

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

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

SPECIFICATIONS PSS-3203 PSS-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

Current 1mA(2mA rating current>3.0A) OVP 10mV Voltage

Current OVP Voltage

Current Voltage

Current Voltage 10mVReadback

Current 1mA(2mA rating current >3.0A) Voltage

Current

10%~90% 90%~10% Voltage

Current Voltage Current

0~32V×10~20V×1 0~3A×10~5A×1 0~33V×10~21V×1

≦3mV(≦5mV rating current>3.0A) ≦3mA(≦5mA rating current>3.0A) ≦3mV ≦3mA

10mV

≦0.05%+20mV ≦0.1%+5mA(+10mA rating cu rrent > 3.0A) ≦0.05%+20mV

Ripple≦1mVrms/3mVp-p Noise≦2mVrms/30mVp-p

≦3mArms (≦5mArms rating current>3.0A) ≦100ppm+3mV

≦100ppm+3mA

≦0.05%+10mV ≦0.1%+5mA(10mA rating current >3.0A)

≦100ms ≦100ms (≧10% rating load) ≦100ppm+10mV

≦100ppm+5mA ≦100ppm+10mV

≦150ppm+10mA

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