GW Instek PSW User Manual

Multi-Range DC Power Supply

PSW Series

USER MANUAL

GW INSTEK PART NO. 82SW-80400MH1

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

Table of Contents

SAFETY INSTRUCTIONS ................................................... 5

GETTING STARTED ........................................................... 9

PSW Series Overview ........................... 10

Appearance .......................................... 15

Theory of Operation ............................. 22

OPERATION .................................................................... 35

Set Up .................................................. 37

Basic Operation ................................... 57

Parallel / Series Operation ................... 72

Test Scripts .......................................... 87

CONFIGURATION ........................................................... 96

Configuration ....................................... 97

ANALOG CONTROL ....................................................... 116

Analog Remote Control Overview ....... 117

Remote Monitoring ............................ 133

COMMUNICATION INTERFACE ..................................... 138

Interface Configuration ...................... 139

MAINTENANCE ............................................................. 154

FAQ ............................................................................... 156

APPENDIX ..................................................................... 158

PSW Default Settings ......................... 158

Error Messages & Messages .............. 161

Table of Contents

LED Display Format ........................... 161

PSW Specifications ............................ 162

PSW Dimensions ............................... 177

Declaration of Conformity .................. 182

INDEX ............................................................................ 183

SAFETY INSTRUCTIONS

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 PSW or to other properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

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.

PSW Series User Manual

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.

General Guideline

CAUTION

 Do not place any heavy object on the PSW.  Avoid severe impact or rough handling that

leads to damaging the PSW.

 Do not discharge static electricity to the PSW.  Use only mating connectors, not bare wires, for

the terminals.

 Do not block the cooling fan opening.  Do not disassemble the PSW unless you are

qualified.

(Measurement categories) EN 61010-1:2010 and EN 61010-2-030 specify the measurement categories and their requirements as follows. The PSW 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~63Hz  To avoid electrical shock connect the protective

grounding conductor of the AC power cord to an earth ground.

Safety Guidelines

SAFETY INSTRUCTIONS

Cleaning the PSW

 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.

Operation Environment

 Location: Indoor, no direct sunlight, dust free,

almost non-conductive pollution (Note below)

 Relative Humidity: 20%~ 85%  Altitude: < 2000m  Temperature: 0°C to 50°C

(Pollution Degree) EN 61010-1:2010 and EN 61010-2-030 specify the pollution degrees and their requirements as follows. The PSW 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.

PSW 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.

GETTING STARTED

PSW Series Overview ....................................................... 10

Series lineup .............................................................................................................. 10

Main Features ........................................................................................................... 11

Accessories ................................................................................................................ 12

PSW 30/80/160 Accessories .................................................................... 12

PSW 250/800 Accessories ........................................................................ 13

Appearance ..................................................................... 15

PSW Front Panel ..................................................................................................... 15

Rear Panel ................................................................................................................. 18

GETTING STARTED

This chapter describes the power supply in a nutshell, including its main features and front / rear panel introduction. After going through the overview, please read the theory of operation to become familiar with the operating modes, protection modes and other safety considerations.

PSW Series User Manual

Note

Throughout the user manual, PSW 30, PSW 80, PSW 160, PSW 250 or PSW 800 will refer to any of the PSW models with a maximum voltage rating of 30V, 80V, 160V, 250V or 800V, respectively.

Model name

Type

Voltage Rating

Current Rating

Power

PSW 30-36

Type I

0~30V

0~36A

360W

PSW 80-13.5

Type I

0~80V

0~13.5A

360W

PSW 160-7.2

Type I

0~160V

0~7.2A

360W

PSW 250-4.5

Type I

0~250V

0~4.5A

360W

PSW 800-1.44

Type I

0~800V

0~1.44A

360W

PSW 30-72

Type II

0~30V

0~72A

720W

PSW 80-27

Type II

0~80V

0~27A

720W

PSW 160-14.4

Type II

0~160V

0~14.4A

720W

PSW 250-9

Type II

0~250V

0~9A

720W

PSW 800-2.88

Type II

0~800V

0~2.88A

720W

PSW 30-108

Type III

0~30V

0~108A

1080W

PSW 80-40.5

Type III

0~80V

0~40.5A

1080W

PSW 160-21.6

Type III

0~160V

0~21.6A

1080W

PSW 250-13.5

Type III

0~250V

0~13.5A

1080W

PSW 800-4.32

Type III

0~800V

0~4.32A

1080W

PSW Series Overview

Series lineup

The PSW series consists of 15 models, divided into 3 different model types covering 3 power capacities: Type I (360 Watt), Type II (720 Watt) and Type III (1080 Watt).

GETTING STARTED

360 Watt models

Type I

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30 -36

360W

Multi-Range DC Power Supply

Voltage

Current

720 Watt models

Type II

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30 -72

720W

Voltage

Current

Multi-Range DC Power Supply

1080 Watt models

Type III

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30 -108

1080W

Voltage

Current

Multi-Range DC Power Supply

Performance

 High performance/power  Power efficient switching type power supply  Low impact on load devices  Fast transient recovery time of 1ms  Fast output response time

Features

 OVP, OCP and OTP protection  Adjustable voltage and current slew rates  User adjustable bleeder control to quickly

dissipate the power after shutdown to safe levels.

 Extensive remote monitoring and control

options

 Support for serial* and parallel connections.

*(30, 80, 160 volt models only)

 Power on configuration settings.  Supports test scripts  Web server monitoring and control

Apart from the differences in output, each unit differs in size. The 720 and 1080 watt models are larger than the 360 watt models to accommodate the increase in power.

Main Features

PSW Series User Manual

Interface

 Ethernet port  Analog connector for analog voltage and current

monitoring

 USB host and device port

Standard Accessories

Part number

Description

CD-ROM

User manual, programming manual

4323-30600101

Power cord (Type I/II)

4320-91001101

Power cord (Type III)

1042-SWLV0301

Output terminal cover

GTL-123

Test leads: 1x red, 1x black

GTL-240

USB Cable

PSW-004

Basic Accessory Kit:

M4 terminal screws and washers x2, M8 terminal bolts, nuts and washers x2, Air filter x1, Analog control protection dummy x1, Analog control lock level x1

Optional Accessories

Part number

Description GET-001

Extended terminal

PSW-001

Accessory Kit:

Pin contact x10, Socket x1, Protection cover x1

Accessories

Please check the contents before using the PSW.

PSW 30/80/160 Accessories

GETTING STARTED

PSW-002

Simple IDC Tool

PSW-003

Contact Removal Tool

PSW-005

Series operation cable for 2 units.

PSW-006

Parallel operation cable for 2 units.

PSW-007

Parallel operation cable for 3 units.

GRA-410-J

Rack mount adapter (JIS)

GRA-410-E

Rack mount adapter (EIA)

GUG-001

GPIB to USB adapter

GTL-240

USB Cable

57RG-30B00201

Large filter (Type II/III)

Download

Name

Description

psw_cdc.inf

USB driver

Standard Accessories

Part number

Description

CD-ROM

User manual, programming manual

4323-30600101

Power cord (Type I/II)

4320-91001101

Power cord (Type III)

1042-SWHV0301

High voltage output terminal cover

GTL-240

USB Cable

39BT-50900401

High voltage output terminal

PSW 250/800 Accessories

PSW Series User Manual

PSW-008

Basic Accessory Kit:

(Air filter x1, Analog control protection dummy x1, Analog control lock level x1

Optional Accessories

Part number

Description GET-002

Extended terminal

PSW-001

Accessory Kit:

Pin contact x10, Socket x1, Protection cover x1

PSW-002

Simple IDC Tool

PSW-003

Contact Removal Tool

PSW-006

Parallel operation cable for 2 units.

PSW-007

Parallel operation cable for 3 units.

GRA-410-J

Rack mount adapter (JIS)

GRA-410-E

Rack mount adapter (EIA)

GTL-130

Test leads: 2x red, 2x black

GUG-001

GPIB to USB adapter

GTL-240

USB Cable

57RG-30B00201

Large filter (Type II/III)

Download

Name

Description

psw_cdc.inf

USB driver

GETTING STARTED

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30 -72

720W

Voltage

Current

Multi-Range DC Power Supply

Current knob

Output key

Power switch

Voltage knob

USB A port

Display

Cover panel

Function keys

1080W: PSW 30-108, 80-40.5, 160-21.6, 250-13.5, 800-4.32

360W: PSW 30-36, 80-13.5, 160-7.2, 250-4.5, 800-1.44

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30- 108

1080W

Voltage

Current

Multi-Range DC Power Supply

%W10080604020

ISR

C C

DLY

ALM

RMT

C V

VSR

Function OVP/OCP Set

Output

PWR DSPLLock/LocalTest

PSW 30- 36

360W

Multi-Range DC Power Supply

Voltage

Current

Appearance

PSW Front Panel

720W: PSW 30-72, 80-27, 160-14.4, 250-9, 800-2.88

PSW Series User Manual

Function Keys

The Function keys along with the Output key will light up when a key is active.

Function

The Function key is used to configure the power supply.

OVP/OCP

Set the over current or over voltage protection levels.

Set

Sets the current and voltage limits.

Test

Used to run customized scripts for testing.

Lock/Local

Locks or unlocks the panel keys to prevent accidentally changing panel settings.

PWR DSPL

Toggles the display from viewing V/A  V/W or A/W*. *Press the Voltage knob for V/W, press the Current knob for A/W.

Display Indicators

VSR

Voltage Slew Rate

C V

Constant Voltage Mode

RMT

Remote Control Mode

ALM

Alarm on

DLY

Delay Output

C C

Constant Current Mode

ISR

Current Slew Rate

GETTING STARTED

20 40 60

80 100 % W

Power bar Indicates the current power output

as a percentage.

Voltage Knob

Voltage

Sets the voltage.

Current Knob

Current

Sets the current.

Output

Press to turn on the output. The Output key will light up when the output is active.

USB

USB A port for data transfer, loading test scripts etc.

Power Switch

Used to turn the power on/off.

PSW Series User Manual

Output terminal (+)

Fan

Output terminal (-)

USB B port

LAN

AC Input

Senseterminal

Analog control connector

LAN

100 240V

1000VA MAX.

AC 47 63Hz

SER.NO. LABEL

Sense+ terminal

Chassis ground

1080W: PSW 30-108, 80-40.5, 160-21.6

360W: PSW 30-36, 80-13.5, 160-7.2

100 240VAC

1500VA MAX.

47 63Hz

LAN

SER.NO. LABEL

AC Input

LAN

100 240V

47 63Hz 500VA MAX.

Rear Panel

720W: PSW 30-72, 80-27, 160-14.4

GETTING STARTED

LAN

100 240V

1000VA MAX.

AC 47 63Hz

SER.NO. LABEL

V SN.C. S V

Output terminals +V

Fan

Chassis ground

USB B port

LAN

AC Input

Senseterminal

Analog control connector

Sense+ terminal

Output terminals -V

1080W: PSW 250-13.5, 800-4.32

360W: PSW 250-4.5, 800-1.44

LAN

SER.NO. LABEL

47 63Hz

1500VA MAX.

AC100 240V

V VSN.C. S

AC Input

LAN

100 240V

47 63Hz500VA MAX.

V SN.C. S V

720W: PSW 250-9, 800-2.88

PSW Series User Manual

Analog Control Connector

Standard 26 pin MIL connector (OMRON XG4 IDC plug).

The analog control connector is used to monitor current and voltage output, machine status (OVP, OCP, OTP etc.), and for analog control of the current and voltage output.

Use an OMRON XG5 IDC socket as the mating socket.

Output Terminals (30, 80, 160 volt models)

Positive (+) and negative (-) output terminals.

Chassis ground

Sense (-S) and Sense (+S) terminals.

Output Terminals (250, 800 volt models)

The 250 and 800 volt models use a 9 pin connector and a plug for the output and sense terminal connections. The plug is a MC420-38109Z plug by DECA SwitchLab Inc. This plug is also available separately (GW part number 39BT-50900401).

V SN.C. S V

Positive (V+) and negative (V-) output terminals (3 of each).

V SN.C. S V

Chassis ground

V SN.C. S V

Sense (-S) and Sense (+S) terminals.

GETTING STARTED

USB B port

The USB B port is used for remote control.

Fans

Temperature controlled fans

Ethernet Port

LAN

The ethernet port is used for remote control and digital monitoring from a PC.

Line Voltage Input

(Type I/TypeII)

Type I: PSW 30-36/80-13.5/ 160-7.2/250-4.5, 800-1.44

Type II: PSW 30-72/80-27/ 160-14.4/250-9, 800-2.88

 Voltage Input: 100~240 VAC  Line frequency: 50Hz/60 Hz

(Automatically switchable)

Line Voltage Input

(Type III)

Type III: PSW 30-108/80-40.5/160-21.6/ 250-13.5/800-4.32

 Voltage Input: 100~240 VAC  Line frequency: 50Hz/60 Hz

(Automatically switchable)

PSW Series User Manual

Background

The PSW power supplies are regulated DC power supplies with a high voltage and current output. These operate in CC or CV mode within a wide operating range limited only by the output power.

The operating area of each power supply is determined by the rated output power as well as the voltage and current rating. For example the operating area and rated power output for the PSW 30-36 is shown below.

Voltage

Current

360W rated power

12 36

PSW 30-36 Operating Area

When the power supply is configured so that the total output (current x voltage output) is less than the rated power output, the power supply functions as a typical constant current, constant voltage power supply.

If however, the power supply is configured such that the total output (current x voltage output) exceeds the rated power output, the

Theory of Operation

The theory of operation chapter describes the basic principles of operation, protection modes and important considerations that must be taken into account before use.

Operating Area Description

GETTING STARTED

effective output is actually limited to the power limit of the unit. In this case the output current and voltage then depend purely on the load value.

Below is a comparison of the operating areas of each power supply.

PSW 800V Series Operating Area

100

800

Current (A)

Voltage (V)

200

300

400

700

900

Type III

Type II

Type I

500

600

0.45 0.9 1.35

800

250

2.88 4.321.44

PSW 250V Series Operating Area

Current (A)

Voltage (V)

Type III

Type II

Type I

1.44 2.88 4.32

250

9 13.54.5

250

200

150

100

PSW Series User Manual

PSW 160V Series Operating Area

160

Current (A)

Voltage (V)

140

180

Type III

Type II

Type I

100

120

2.25 4.5 6.75

160

14.4 21.67.2

PSW 80V Series Operating Area

Current (A)

Voltage (V)

26.6

4.5 9.0 13.5

Type III

Type II

Type I

40205

27 40.5

GETTING STARTED

PSW 30V Series Operating Area

Current (A)

Voltage (V)

0 20

100

12 24 36

120

Type III

Type II

Type I

72 108

CC and CV mode Description

When the power supply is operating in constant current mode (CC) a constant current will be supplied to the load. When in constant current mode the voltage output can vary, whilst the current remains constant. When the load resistance increases to the point where the current limit (I

SET

) can no longer be sustained the power supply switches to CV mode. The point where the power supply switches modes is the crossover point.

When the power supply is operating in CV mode, a constant voltage will be supplied to the load, whilst the current will vary as the load varies. At the point that the load resistance is too low to maintain a constant voltage, the power supply will switch to CC mode and maintain the set current limit.

The conditions that determine whether the power supply operates in CC or CV mode depends on the set current (I

SET

), the set voltage

CC and CV Mode

PSW Series User Manual

SET

), the load resistance (RL) and the critical resistance (RC). The critical resistance is determined by V

SET/ISET

. The power supply will operate in CV mode when the load resistance is greater than the critical resistance. This means that the voltage output will be equal to the V

SET

voltage but the current will be

less than I

SET

. If the load resistance is reduced to the point that the current output reaches the I

SET

level, the power supply switches to CC

mode.

Conversely the power supply will operate in CC mode when the load resistance is less than the critical resistance. In CC mode the current output is equal to I

SET

and the voltage output is

less than V

SET

RL=R

RL<R

VSET

ISET

RL>R

Crossover

point

Slew Rate

Theory

The PSW has selectable slew rates for CC and CV mode. This gives the PSW power supply the ability to limit the current/voltage draw of the power supply. Slew rate settings are divided into High Speed Priority and Slew Rate Priority. High Speed Priority mode disables slew rate settings for CC or CV mode. Slew Rate Priority mode allows for user adjustable slew rates for CC or CV mode. The rising and falling slew rate can be set independently.

Slew rate=

Disabled

Slew rate =

Enabled

Background

The PSW DC power supplies employ a bleed resistor in parallel with the output terminals.

PSW

Load

Bleed

resistor

Bleed resistors are designed to dissipate the power from the power supply filter capacitors

GETTING STARTED

Bleeder Control

PSW Series User Manual

when power is turned off and the load is disconnected. Without a bleed resistor, power may remain charged on the filter capacitors for some time and be potentially hazardous.

In addition, bleed resistors also allow for smoother voltage regulation of the power supply as the bleed resistor acts as a minimum voltage load.

The bleed resistance can be turned on or off using the configuration settings.

Note

By default the bleed resistance is on. For battery charging applications, be sure to turn the bleed resistance off as the bleed resistor can discharge the connected battery when the unit is off.

Background

On the PSW, the internal resistance of the power supply can be user-defined in software. (Internal Resistance Setting, page 105). When the internal resistance is set it can be seen as a resistance in series with the positive output terminal. This allows the power supply to simulate power sources that have internal resistances such as lead acid batteries.

Internal Resistance Range

Unit Model

Internal Resistance Range

PSW 30-36

0.000 ~ 0.833Ω

PSW 30-72

0.000 ~ 0.417Ω

PSW 30-108

0.000 ~ 0.278Ω

PSW 80-13.5

0.000 ~ 5.926Ω

PSW 80-27

0.000 ~ 2.963Ω

PSW 80-40.5

0.000 ~ 1.975Ω

PSW 160-7.2

0.000 ~ 22.222Ω

PSW 160-14.4

0.000 ~ 11.111Ω

PSW 160-21.6

0.000 ~ 7.407Ω

Internal Resistance

GETTING STARTED

PSW 250-4.5

0.00 ~ 55.55Ω

PSW 250-9

0.00 ~ 27.77Ω

PSW 250-13.5

0.00 ~ 18.51Ω

PSW 800-1.44

0.0 ~ 555.5Ω

PSW 800-2.88

0.0 ~ 277.8Ω

PSW 800-4.32

0.0 ~ 185.1Ω

OVP

Overvoltage protection (OVP) prevents a high voltage from damaging the load.

OCP

Overcurrent protection prevents high current from damaging the load.

OTP

Over temperature protection protects the instrument from overheating.

Power Switch Trip

When the Power Switch Trip configuration setting is enabled, the power supply will automatically shut down when a protection setting has been tripped (OCP, OVP, OTP).

Alarm output

Alarms are output via the analog control connector. The alarm output is an isolated open-collector photo coupler output.

Alarms

The PSW power supplies have a number of protection features. When one of the protection alarms are set, the ALM icon on the display will be lit. For details on how to set the protection modes, please see page 57.

PSW Series User Manual

Inrush current

When the power supply switch is first turned on, an inrush current is generated. Ensure there is enough power available for the power supply when first turned on, especially if a number of units are turned on at the same time.

Caution

Cycling the power on and off quickly can cause the inrush current limiting circuit to fail as well as reduce the working life of the input fuse and power switch.

Pulsed or Peaked loads

When the load has current peaks or is pulsed, it is possible for the maximum current to exceed the mean current value. The PSW power supply ammeter only indicates mean current values, which means for pulsed current loads, the actual current can exceed the indicated value. For pulsed loads, the current limit must be increased, or a power supply with a greater capacity must be chosen. As shown below, a pulsed load may exceed the current limit and the indicated current on the power supply ammeter.

Considerations

The following situations should be taken into consideration when using the power supply.

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