Aplab Vsp1060 User manual

MODELS

VSP1060, VSP2030, VSP3020,VSP4015,

VSP6010, VSP1205, VSP2060, VSP3040,

VSP4030, VSP6020, VSP12010, VSP8015,

VSP3080, VSP4060,VSP6040, VSP8030,

VSP12020, VSP20180, VSP30120, VSP4090,

VSP6060, VSP12030, VSP8045, VSP30240,

VSP40180,VSP60120, VSP8090, VSP12060

High Power Switching DC Power Supplies

Instruction Manual

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE NO.

1 TEST INSTRUMENT SAFETY 1

2 GENERAL INFORMATION 2

3 INSTALLATION 6

4 OPERATING INSTRUCTION 10

5 MAINTENANCE 19

6 REMOTE INTERFACE 21

7 CUSTOMER SUPPORT 63

8 WARRENTY INFORMATION 64

9 SERVICE INFORMATION 65

Section 1

Test Instrument Safety

WARNING

Normal use of test equipment exposes you to a certain amount of danger from electrical

shock because testing must sometimes be performed where exposed voltage is present.

An electrical shock causing 10milliamps of current to pass through the heart will stop most

human heartbeats. A Voltage as low as 35 volts dc or ac (rms.) should be considered

dangerous and hazardous since it can produce a lethal current under certain conditions.

Higher voltages pose an even greater threat because such voltage can more easily produce

a lethal current. Your normal work habits should include all accepted practices to prevent

contact with exposed high voltage and to steer current away from your heart in case of

accidental contact with high voltage. You will significantly reduce the risk factor if you know

and observe the following safety precaution.

1. Don’t expose high voltage needlessly. Remove housings and covers only when necessary.

Turn off equipment while making test connections in high voltage circuits. Discharge high

voltage capacitors after removing power.

2. If possible, familiarize yourself with the equipment being tested and the location of its high

voltage points. However, remember that high voltage may appear at unexpected points in

defective equipment.

3. Use an insulated floor material or a large, insulated floor to stand on and an insulated work

surface on which to place equipment and make certain such surfaces are not damp or wet.

4. Use the time proven “one hand in the pocket” technique while handling an instrument probe.

Be particularly careful to avoid contacting a nearby metal object that could provide a good

ground return path.

5. When testing ac powered equipment, remember that ac line voltage is usually present on

some power input circuits such as the on-off switch, fuses, power transformer etc. any time

the equipment is connected to an ac outlet, even if the equipment is turned off.

6. Some equipment with a two-wire ac power cord, including some with polarized power plugs,

is the “hot chassis” type. This includes most recent television receivers and audio equip-

ment. A plastic wooden cabinet insulates the chassis to protect the customer. When the

cabinet is removed for servicing, a serious shock hazard exists if the chassis is touched. Not

only does this present a dangerous shock hazard, but damage to test equipment. Always

connect an isolation transformer between the ac outlet and the equipment under test. To be

on the safe side, treat all two-wire ac equipment as “hot chassis” unless you are sure it is

isolated chassis or an earth ground chassis.

7. On test instruments or any equipment with a 3-wire ac power plug, use only a 3-wire outlet.

This is a safety feature to keep the housing or other exposed elements at earth ground.

8. Aplab products are not authorized for use in any application involving direct contact between

our product and the human body or for use as a critical component in a life support device or

system. Here “direct contact” refers to any connection from or to our equipment via any

cabling or switching means. A “critical component” is any component of a life support device

or system whose failure to perform can be reasonably expected to cause failure of that

device or system or to affect its safety or effectiveness.

Never work all alone. Someone should be nearby to render aid if necessary. Training

in CPR (cardiopulmonary resuscitation) first aid is highly recommended.

Section 2

General information

2.1 INTRODUCTION

2.2 FEATURE

2.3 MARKINGS

2.4 INTERFACE

2.5 SPECIFICATION

2.6 ORDERING INFORMATION

2.1 INTRODUCTION

The VSP SERIES power supplies are designed to deliver power in constant

voltage and constant current mode by switch mode conversion in sleek 1U high

cabinet and in a 19’’ rack construction.

This series comprises the two device soft switching technology that yields

very high efficiency of conversion for dc-to-dc converter part. Also it comprises

power factor correction circuity, which shapes the input current to follow the voltage

to maintain almost unity power factor at full load, and limits the current harmonics in

the input line.

It provides the user the option of isolated analog voltage, current and resis-

tance programming with built-in isolation amplifiers. It gives the option to monitor the

isolated signals with the option to change either from 0 to 5 Volts or from 0 to 10

Volts, for output voltage and current from 0 to full-scale level. It provides the display of

the output voltage, over voltage set level and current with 3-digit LED displays.

Piggyback series pass device ensures the ripple and noise levels to very low values.

Current sharing facility in the module gives the advantage to increase the power with

ease and the vents in the front and the rear enables it with absolutely zero stacking.

The module can be switched on/off through the front panel ON/OFF switch or re-

mote switch on rear panel.

VSP series provides digital interface options for remote programming from

PC. The digital interface provides 12-bit resolution for control as well as monitoring

the output.

Some of the features of the power supply are listed below:

2.2 FEATURES

MAINS OPERATED, WITH WIDE INPUT RANGE.

POWER FACTOR CORRECTED INPUT.

ISOLATED D.C. OUTPUT.

CONSTANT VOLTAGE OPERATION FROM 0 TO FULL-SCALE LEVEL.

CONSTANT CURRENT OPERATION FROM 0 TO FULL-SCALE LEVEL.

OVER VOLTAGE CONTROL FACILITY.

REMOTE SENSING FACILITY.

PARALLELABLE CURRENT SHARING OUTPUT.

HIGH OVERALL EFFICIENCY – 80% TYPICAL.

VERY LOW OUTPUT RIPPLE AND NOISE.

INPUT EMI FILTERING TO MEET EN55022 CLASS A.

20 MILLISECOND HOLD-UP TIME.

TWO FRONT PANEL DPMS. FOR V / O.V AND I.

MULTI TURN POTENTIOMETERS FOR V, O.V AND I SET.

FRONT PANEL OUTPUT TERMINALS FOR MONITORING.

SLEEK, 1U HIGH, 19 INCH RACK CONSTRUCTION.

INTERNAL FORCED AIR COOLING WITH ZERO STACKING.

ISOLATED ANALOG VOLTAGE, CURRENT AND RESISTANCE PROGRAM

MING AND MONITORING.

REMOTE ON/OFF FACILITY.

RS232/ GPIB/ INTERFACE.

2.3 MARKINGS

The unit has the name PROGRAMMABLE PFC DC SUPPLY written clearly

on the top of the front panel. The Model Number and ratings are also clearly written

on the front panel. The ratings are clearly written on the rear panel, just near the

output terminals.

2.4 INTERFACE

The unit has both local as well as remote controls. For Remote operation, the

series offers analog as well as digital interface or both. Both RS 232 or GPIB digital

interfaces can be provided.

2.5 SPECIFICATIONS

Output Specification

Model VSP1060* VSP2030* VSP3020* VSP4015*

Power 0.6KW 0.6KW 0.6KW 0.6KW

Output Voltage 0–10V 0–20V 0–30V 0–40V

Output Current 0–60A 0–30A 0–20A 0–15A