Instek PSU6-200, PSU8-180, PSU12.5-120, PSU15-100, PSU20-76 User Manual

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Programmable DC Power Supply

PSU Series

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.

TABLE OF CONTENTS

Table of Contents

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

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

PSU Series Overview................................................ 10

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

Theory of Operation ................................................ 23

OPERATION .................................................................. 34

Set Up ..................................................................... 36

Basic Operation ....................................................... 49

Parallel / Series Operation ...................................... 67

Test Scripts .............................................................. 85

CONFIGURATION .......................................................... 93

Configuration Overview ........................................... 94

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

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

Remote Monitoring.................................................135

Isolated Analog Control Option ..............................142

COMMUNICATION INTERFACE .................................... 157

Interface Configuration ...........................................158

FAQ .............................................................................. 192

APPENDIX .................................................................... 193

PSU Factory Default Settings ..................................194

Error Messages & Messages ...................................197

LED ASCII Table Character Set ................................198

PSU Specifications .................................................199

PSU Series User Manual

PSU Dimensions .................................................... 207

Certificate Of Compliance ...................................... 209

INDEX .......................................................................... 210

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 PSU 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.

PSU 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 PSU.  Avoid severe impact or rough handling that

leads to damaging the PSU.

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

the terminals.

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

qualified.

(Measurement categories) EN61010-1:2010 and EN61010-2-030 specifies the measurement categories and their requirements as follows. The PSU 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.

Safety Guidelines

SAFETY INSTRUCTIONS

Cleaning the PSU

 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% (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 PSU 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.

PSU 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

PSU Series Overview................................................ 10

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

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

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

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

PSU Series Front Panel ................................................................... 15

PSU Series Display and Operation Panel .................................... 18

Rear Panel .......................................................................................... 20

Theory of Operation ................................................ 23

Operating Area Description ........................................................... 23

CC and CV Mode ............................................................................ 24

Slew Rate ........................................................................................... 26

Bleeder Control ................................................................................ 26

Internal Resistance ........................................................................... 27

Alarms ................................................................................................ 28

Considerations .................................................................................. 29

Grounding ......................................................................................... 31

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.

PSU Series User Manual

Model name

Voltage Rating1

Current Rating2

Power

PSU 6-200

200A

1200W

PSU 8-180

180A

1440W

PSU 12.5-120

12.5V

120A

1500W

PSU 15-100

15V

100V

1500W

PSU 20-76

20V

76A

1520W

PSU 30-50

30V

50A

1500W

PSU 40-38

40V

38A

1520W

PSU 50-30

50V

30A

1500W

PSU 60-25

60V

25A

1500W

PSU 80-19

80V

19A

1520W

PSU 100-15

100V

15A

1500W

PSU 150-10

150V

10A

1500W

PSU 300-5

300V

1500W

PSU 400-3.8

400V

3.8A

1520W

PSU 600-2.6

600V

2.6A

1560W

Minimum voltage guaranteed to 0.2% of rating voltage.

Minimum current guaranteed to 0.4% of rating current.

PSU Series Overview

Series lineup

The PSU series consists of 15 models, covering a number of different current, voltage and power capacities:

Main Features

Performance

 High power density: 1500W in 1U  Universal input voltage 85~265Vac, continuous

operation.

 Output voltage up to 600V, current up to 200A.

Features

 Active power factor correction.  Parallel master/slave operation with active

current sharing.

 Remote sensing to compensate for voltage drop

in load leads.

 19” rack mounted ATE applications.  A built-in Web server.  OVP, OCP and OHP protection.  Preset memory function.  Adjustable voltage and current slew rates.  Bleeder circuit ON/OFF setting.  CV, CC priority start function. (Prevents

overshoot with output ON)

 Supports test scripts.

Interface

 Built-in RS-232/485, LAN and USB interface.  Analog output programming and monitoring.  Optional interfaces: GPIB, Isolated Voltage (0-

5V/0-10V) and Isolated Current (4-20mA) programming and monitoring interface. (Factory options)

GETTING STARTED

PSU Series User Manual

Standard Accessories

Part number

Description

Qty. Output terminal cover

Analog connector plug kit

Output terminal M8 bolt set (6V~60V model)

1 Input terminal cover

Power Cord (230VAC/10A,

1.8M, provide for some region only)

1 82GW1SAFE0M*1

Safety Guide

62SB-8K0HD1*1

1U Handle, ROHS

2 62SB-8K0HP1*1

1U BRACKET (LEFT), RoHS

62SB-8K0HP2*1

1U BRACKET (RIGHT), RoHS

CD-ROM

User manual, Programming manual

1 set 82SU-PSU00K*1

Packing list

82GW-00000C*1

* CTC GW/INSTEK JAPAN USE ,RoHS

Factory Installed Options

Part number

Description PSU-GPIB

GPIB interface

PSU-ISO-V

Voltage programming isolated analog interface

PSU-ISO-I

Current programming isolated analog interface

PSU-001

Front Panel Filter Kit (Operation Temperature is guaranteed to 40˚C)

Accessories

Before using the PSU power supply unit, check the package contents to make sure all the standard accessories are included.

GETTING STARTED

Optional Accessories

Part number

Description

PSU-01C

Cable for 2 units of PSU-Series in parallel mode connection

PSU-01B

Bus Bar for 2 units of PSU-Series in parallel mode connection

PSU-01A

Joins a vertical stack of 2 PSU units together. 2U-sized handles x2, joining plates x2.

PSU-02C

Cable for 3 units of PSU-Series in parallel mode connection

PSU-02B

Bus Bar for 3 units of PSU-Series in parallel mode connection

PSU-02A

Joins a vertical stack of 3 PSU units together. 3U-sized handles x2, joining plates x2.

PSU-03C

Cable for 4 units of PSU-Series in parallel mode connection

PSU-03B

Bus Bar for 4 units of PSU-Series in parallel mode connection

PSU-03A

Joins a vertical stack of 4 PSU units together. 4U-sized handles x2, joining plates x2.

PSU-232

RS232 cable with DB9 connector kit.

It Includes RS232 cable with DB9 connector, RS485 used master cable (gray plug), slave cable (black plug), intermediate connector and end terminal connector.

PSU-485

RS485 cable with DB9 connector kit.

It Includes RS485 cable with DB9 connector, RS485 used master cable (gray plug), slave cable (black plug), intermediate connector and end terminal connector.

PSU Series User Manual

GRM-001

Rack-mount slides (General Devices P/N: C-300-S-116-RH-LH)

GTL-246

USB Cable 2.0-A-B Type, Approx. 1.2M

GPW-001

Power Cord SJT 12AWG/3C, 3m MAX Length, 105 ºC, RNB5-5*3P UL/CSA type

GPW-002

Power Cord H05W-F 1.5mm2/3C, 3m MAX Length, 105 ºC, RNB5-5*3P VDE type

GPW-003

Power Cord VCTF 3.5mm2/3C, 3m MAX Length, 105 ºC, RNB5-5*3P PSE type

Download

Name

Description

psu_cdc.inf

PSU USB driver

Other

Name

Description

Certificate of traceable calibration

GETTING STARTED

Lock/Local PROT Function Test Set Output

Unlock ALM_CLR M 1 M 2 M 3

Shift

: Long Push

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C C

C V

VOLTAGE CURRENT

PSU 40-38

DC Power Supply

0 -40V / 0 - 38A

Voltage Current

2 3 4 5

Display Area

116 7 8 9 10 12 13

Power Switch

Used to turn the power on/off.

USB A Port

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

Air Inlet

Air inlet for cooling the inside of the PSU series.

Voltage Knob

Voltage

Used to set the voltage value or select a parameter number in the Function settings.

Display Area

The display area shows setting values, output values and parameter settings. The function LEDs below show the current status and mode of the power supply. See page 18 for details.

Current Knob

Current

Used to set the current value or change the value of a Function parameter.

Appearance

PSU Series Front Panel

PSU Series User Manual

Lock/Local Button

Lock/Local

Unlock

Used to lock all front panel buttons other than the Output Button or it switches to local mode.

Unlock Button

(Long push) Used to unlock the front panel buttons.

PROT Button

PROT

ALM_CLR

Used to set and display OVP, OCP and UVL.

ALM_CLR Button

(Long push) Used to release protection functions that have been activated.

Function Button

Function

Used to configure the various functions.

M1 Button

(+Shift) Used to recall the M1 setup. (+Shift and hold) Used to save the current setup to M1.

Test Button

TEST

Used to run customized scripts for testing.

M2 Button

(+Shift) Used to recall the M2 setup. (+Shift and hold) Used to save the current setup to M2.

10.

Set Button

SET

Used to set and confirm the output voltage and output current.

M3 Button

(+Shift) Used to recall the M3 setup. (+Shift and hold) Used to save the current setup to M3.

GETTING STARTED

11.

Shift Button

Shift

Used to enable the functions that are written in blue characters below certain buttons.

12.

Output Button

Output

Used to turn the output on or off.

13.

Output ON LED

Lights in green when the output is on.

PSU Series User Manual

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C C

C V

VOLTAGE CURRENT

Display Area

14 1516 17

18 19 20 21 22 23 24

26 27 28

14.

Voltage Meter

Displays the voltage or the parameter number of a Function parameter.

15.

Current Meter

Displays the current or the value of a Function parameter.

16.

CV LED

Lights in green during constant voltage mode.

17.

CC LED

Lights in green during constant current mode.

18.

VSR LED

Lights up when CV Slew Rate Priority is enabled.

19.

LAN LED

Lights up when the LAN interface is connected.

20.

RMT LED

Lights in green during remote control.

21.

ERR LED

Lights in red when an SCPI error has occurred.

22.

DLY LED

The Output On/Off Delay indicator LED.

23.

ALM LED

Lights in red when a protection function has been activated.

PSU Series Display and Operation Panel

GETTING STARTED

24.

ISR LED

Lights up when CC Slew Rate Priority is enabled.

25.

M1 LED

Lights in green when the memory value are being recalled or saved.

26.

M2 LED

Lights in green when the memory value are being recalled or saved.

27.

M3 LED

Lights in green when the memory value are being recalled or saved.

28.

RUN LED

Lights up when a Test Script has been activated.

Note

Only the ERR and ALM LED’s are red. All the others

are green.

Rear Panel

S LS SLSNC

REMOTE SENSE

ANALOG PROGRAMMING

RS485 / 232

OUT IN

LAN

DC OUTPUT

AC INPUT

L N

100 240V

2000VA MAX.

AC 47 63Hz

234 15678

9 10

6-60V models: PSU 6-200, 8-180, 12.5-120,

80-600V models: PSU 80-19, 100-15, 150-10,

S LS SLSNC

REMOTE SENSE

ANALOG PROGRAMMING

OUT IN

RS485 / 232

LAN

L N

AC INPUT

100 240V

2000VA MAX.

AC 47 63Hz

1 2 3 4 5 6 7 8

ISOLATED PROGRAMMING

0 – 5V / 0 – 10V

1 2 3 4 5 6 7 8

ISOLATED PROGRAMMING

4 – 20mA

15-100, 20-76, 30-50, 40-38, 50-30, 60-25

300-5, 400-3.8, 600-2.6

AC Input

L N

AC INPUT

Wire clamp connector.

DC Output

Output terminals for 6V to 60V models.

Output terminals for 80V to 600V models.

USB

USB port for controlling the PSU remotely.

PSU Series User Manual

GETTING STARTED

LAN

RS 485 / 232

Ethernet port for controlling the PSU remotely.

Remote-IN

LAN

RS 485 / 232

Two different types of cables can be used for RS232 or RS485-based remote control.

PSU-232: RS232 cable with DB9 connector kit.

PSU-485: RS485 cable with DB9 connector kit.

Remote-OUT

LAN

RS 485 / 232

RJ-45 connector that is used to daisy chain power supplies with the Remote-IN port to form a communication bus.

PSU-485S: Serial link cable with RJ-45 shielded connector.

Analog Control

ANALOG PROGRAMMING

External analog control connector.

Remote Sense

S LS SLSNC

Compensation of load wire drop.

Option Slot

1 2 3 4 5 6 7 8

ISOLATED PROGRAMMING

0 – 5V / 0 – 10V

Blank sub-plate for standard units. Isolated Analog connector for units equipped with Isolated Current and Voltage Programming and Monitoring option. GPIB connector for units equipped with IEEE programming option.

PSU Series User Manual

10.

Ground Screw

Connectors for grounding the output (two positions, shown in red).

L N

AC INPUT

100 240V

2000VA MAX.

AC 47 63Hz

GETTING STARTED

Background

The PSU 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 voltage or current output.

The operating area of each power supply is determined by the rated output power as well as the voltage and current rating.

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

PSU Series Operating Area (6-80V models)

Current (A)

Voltage (V)

38 76 120

120 1801608060 1000 140

200

20 40

PSU 6-200

PSU 8-180

PSU 12.5-120

PSU 15-100

PSU 20-76

PSU 30-50

PSU 40-38

PSU 50-30

PSU 60-25

PSU 80-19

180

12.5 8

10050196030

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

PSU Series User Manual

PSU Series Operating Area (100-600V models)

Current (A)

Voltage (V)

300

3.8 5 10

400

12 1686 10

100

200

300

600

400

500

600

2.6

100

150

PSU 100-15

PSU 150-10

PSU 300-5

PSU 400-3.8

PSU 600-2.6

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 set 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 (V

SET

), the load

CC and CV Mode

GETTING STARTED

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

SET

RL=R

RL<R

VSET

ISET

RL>R

Crossover

point

Note

For loads that generate a transient surge voltage, VSET must be set so that the surge voltage does not reach the voltage limit.

For loads in which transient peak current flows, ISET must be set so that the peak value does not reach the current limit.

Slew Rate

Theory

The PSU has selectable slew rates for CC and CV mode. This gives the PSU 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 will use the fastest slew rate for the instrument. 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.

High Speed

Priority

mode

Slew rate =

Enabled

Background

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

PSU

Load

Bleed

resistor

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

PSU Series User Manual

Bleeder Control

GETTING STARTED

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 PSU, the internal resistance of the power supply can be user-defined in software. (Internal Resistance Setting, see the Normal Function Settings on page 101.) 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.

By default the internal resistance is 0Ω.

Internal Resistance Range

Unit Model

Internal Resistance Range

PSU 6-200

0.000 ~ 0.030Ω

PSU 8-180

0.000 ~ 0.044Ω

PSU 12.5-120

0.000 ~ 0.104Ω

PSU 15-100

0.000 ~ 0.150Ω

PSU 20-76

0.000 ~ 0.263Ω

PSU 30-50

0.000 ~ 0.600Ω

PSU 40-38

0.000 ~ 1.053Ω

PSU 50-30

0.000 ~ 1.667Ω

PSU 60-25

0.000 ~ 2.400Ω

PSU 80-19

0.000 ~ 4.210Ω

Internal Resistance

PSU Series User Manual

PSU 100-15

0.000 ~ 6.667Ω

PSU 150-10

0.00 ~ 15.00Ω

PSU 300-5

0.00 ~ 60.00Ω

PSU 400-3.8

0.0 ~ 105.3Ω

PSU 600-2.6

0.0 ~ 230.8Ω

OVP

Over voltage protection (OVP) prevents a high voltage from damaging the load. This alarm can be set by the user.

OCP

Over current protection prevents high current from damaging the load. This alarm can be set by the user.

UVL

Under voltage limit. This function sets a minimum voltage setting level for the output. It can be set by the user.

OHP

Over temperature protection for slave and master board. OHP is a hardware protection function. Only when the unit has cooled can the over temperature protection alarms be cleared.

OH1

Master board over temperature protection.

OH2

Slave board over temperature protection.

Alarms

The PSU power supplies have a number of protection features. When one of the protection alarms is tripped, the ALM icon on the display will be lit and the type of alarm that has been tripped will be shown on the display. When an alarm has been tripped the output will be automatically turned off. For details on how to clear an alarm or to set the protection modes, please see page 49.

GETTING STARTED

ALM SENS

Sense alarm. This alarm will detect if the sense wires have been connected to the wrong polarity.

HW OVP

Hardware over voltage protection. This is a hardware OVP that is fixed at approximately 120% of the rated voltage output.

AC Fail. This alarm function is activated when a low AC input is detected.

FAN FAIL

Fan failure. This alarm function is activated when the fan RPMs drop to an abnormally low level.

Shutdown

Force Shutdown is not activated as a result of the PSU series detecting an error. It is a function that is used to turn the output off through the application of a signal from the rear-panel analog control connector when an abnormal condition occurs.

Alarm output

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

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.

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 PSU power supply

Considerations

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

PSU Series User Manual

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.

Current limit

level

Measured

Ammeter

current

Reverse Current: Regenerative load

When the power supply is connected to a regenerative load such as a transformer or inverter, reverse current will feed back to the power supply. The PSU power supply cannot absorb reverse current. For loads that create reverse current, connect a resistor in parallel to the power supply to bypass the reverse current. This description only applies when the bleed resistance is off.

PSU Load

Resistor

Reverse current

Note

The current output will decrease by the amount of current absorbed by the resistor.

Ensure the resistor used can withstand the power capacity of the power supply/load.

GETTING STARTED

Reverse Current: Accumulative energy.

When the power supply is connected to a load such as a battery, reverse current may flow back to the power supply. To prevent damage to the power supply, use a reverse-current-protection diode in series between the power supply and load.

PSU Load

Diode

CAUTION

Ensure the reverse withstand voltage of the diode is able to withstand 2 times the rated output voltage of the power supply and the forward current capacity can withstand 3 to 10 times the rated output current of the power supply.

Ensure the diode is able to withstand the heat generated in the following scenarios.

When the diode is used to limit reverse voltage, remote sensing cannot be used.

Floating

As the output terminals are floating, the load and all load cables must have an insulation capacity that is greater than the isolation voltage of the power supply.

Grounding

The output terminals of the PSU power supplies are isolated with respect to the protective grounding terminal. The insulation capacity of the load, the load cables and other connected devices must be taken into consideration when connected to the protective ground or when floating.

PSU Series User Manual

PSU

Load

Ext-V Ext-R

Analog

connector

( ) Insulation capacity ≥ isolation voltage

of power supply

WARNING

If the insulation capacity of the load and load cables are not greater than the isolation voltage of the power supply, electric shock may occur.

Grounded output terminal

If the positive or negative terminal is connected to the protective ground terminal, the insulation capacity needed for the load and load cables is greatly reduced. The insulation capacity only needs to be greater than the maximum output voltage of the power supply with respect to ground.

PSU

Load

Ext-V Ext-R

Analog

connector

( ) Insulation capacity ≥ voltage of power

supply with respect to ground

CAUTION

If using external voltage control, do not ground the external voltage terminal as this will create a short circuit.

GETTING STARTED

Example of grounded output terminals

Ground

For models PSU 6-200, 8-180, 12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25

Ground

For models PSU 80-19, 100-15, 150-10, 300-5, 400-3.8, 600-2.6

PSU Series User Manual

Set Up ..................................................................... 36

Line Voltage Connection ................................................................ 36

Power Up ........................................................................................... 38

Wire Gauge Considerations ........................................................... 39

Output Terminals ............................................................................. 40

Using the Output Terminal Cover ................................................ 42

Using the Rack Mount Kit ............................................................. 43

How to Use the Instrument ........................................................... 43

Reset to Factory Default Settings .................................................. 45

View System Version and Build Date .......................................... 46

Basic Operation ....................................................... 49

Setting OVP/OCP/UVL Levels ................................................... 49

Set to C.V. Priority Mode ............................................................... 52

Set to C.C. Priority Mode ............................................................... 56

Panel Lock ......................................................................................... 59

Save Setup ......................................................................................... 59

Recall Setup ....................................................................................... 60

Voltage Sense .................................................................................... 61

Remote Sense Connector .................................................. 61

Remote Sense Cover .......................................................... 62

Local Sense ........................................................................... 63

Remote Sense ...................................................................... 63

Parallel / Series Operation ....................................... 67

Master-Slave Parallel Overview ..................................................... 68

Master-Slave Parallel Connection .................................................. 71

Master-Slave Parallel Operation .................................................... 75

Master-Slave Parallel Calibration ................................................... 77

Master-Slave Series Overview ........................................................ 79

Series Connection ............................................................................ 81

Series Operation ............................................................................... 82

Test Scripts .............................................................. 85

Test Script File Format ................................................................... 86

Test Script Settings .......................................................................... 86

Setting the Test Script Settings ...................................................... 87

OPERATION

Load Test Script from USB ........................................................... 88

Run Test Script ................................................................................. 89

Export Test Script to USB ............................................................. 90

Remove Test Script ......................................................................... 91

PSU Series User Manual

Background

The PSU power supplies use a universal power input that can be used with 100 and 240 Vac systems. To connect or replace the power cord (user supplied, specification below), use the procedure below:

Warning

The following procedure should only be attempted by competent persons.

Ensure the AC power cord is not connected to power. Always allow the power supply to fully discharge before disconnecting the AC power cord.

Recommended Power Cord Specifications

Note

25A 250V, 3x12 AWG, outer diameter: 9-11mm, rated 60 ºC min., 3m maximum length and approved by the national safety standards for the country of use.

There are two type power cord protective sheaths in the standard accessories. One is black color and it is used for outer diameter: 8~13.5mm power cord.

The other is gray color and it is used for outer diameter: 5.5~11.2mm power cord.

The PSU has a number of power cord options available. Please see the optional accessories on page 12 for details.

Removal

1. Turn off the power switch and unplug the

power from the socket.

Set Up

Line Voltage Connection

OPERATION

2. Unscrew the power cord protective sheath.

3. Remove the 2 screws holding the power cord

cover and remove.

4. Remove the AC power cord wires with a flat

head screwdriver.

2-M3x6L Pan Head Screw

GND: Green or Green and Yellow

N: White or Blue

L: Black or Brown

Installation

1. Connect the AC power

cord wires to the AC input terminals.

 Black/Brown  Line (L)  White/Blue  Neutral (N)  Green /Green & Yellow 

Ground ( )

 Wire gauge: Awg12 to

Awg10.

 Wire diameter: 2.05mm-

2.588mm.

AC INPUT

2000VA MAX.

47 63Hz

100 240VAC

Ground

Line

Neutral

2. Make sure the sheath is

tightened to the lock nut.

3. Re-install the power cord

cover.

Screw on locknut

Power Up

Steps

1. Connect the power cord to the

universal power input.

Page 36

2. Press the POWER switch on.

3. The power supply will show the Power On

settings (Pon) at start up. If no Power On settings are configured, the PSU will recover the state right before the power was last turned OFF. If used for the first time, the default settings will appear on the display.

For default configuration settings, see page 194.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Note

You may also configure how the PSU will behave on startup by altering the Power On Configuration settings, see page 109.

Power Down

To turn the PSU power supply off, press the power switch again (0 position). It may take a few seconds for the power supply to fully turn off.

CAUTION

The power supply takes around 8 seconds to fully turn on or shutdown.

Do not turn the power on and off quickly. Please wait for the display to fully turn off.

PSU Series User Manual

OPERATION

Background

Before connecting the output terminals to a load, the wire gauge of the cables should be considered.

It is essential that the current capacity of the load cables is adequate. The rating of the cables must equal or exceed the maximum current rated output of the instrument.

Recommended wire gauge

Wire Gauge

Nominal Cross Section

Maximum Current

0.5

9 18

0.75

18 1 13

1.5

2.5

12 4 34

10 6 45

120 2

145

190

240

000

290

0000

120

340

The maximum operation current depends on the maximum allowable temperature of the insulation on the cable. Under this condition, above table figures the maximum current that insulation’s temperature rise should be under 60 degree and ambient temperature must be less than 30 degrees.

To minimize noise pickup or radiation, the load wires and remote sense wires should be twistedpairs of the shortest possible length. Shielding of

Wire Gauge Considerations

PSU Series User Manual

the sense leads may be necessary in high noise environments. Where shielding is used, connect the shield to the chassis via the rear panel ground screw. Even if noise is not a concern, the load and remote sense wires should be twisted-pairs to reduce coupling, which might impact the stability of the power supply. The sense leads should be separated from the power leads.

Background

Before connecting the output terminals to the load, first consider whether voltage sense will be used, the gauge of the cable wiring and the withstand voltage of the cables and load.

The output terminals are of two types:

- Two solid bars equipped with M8 sized bolt

and nuts for low voltage models (PSU 6-200, 8-180, 12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25)

- Clamp block terminals for medium and high

voltage models (PSU 80-19, 100-15, 150-10, 300-5, 400-3.8, 600-2.6).

WARNING

Dangerous voltages. Ensure that the power to the instrument is disabled before handling the power supply output terminals. Failing to do so may lead to electric shock.

Steps

1. Turn the power switch off.

2. Remove the output terminal cover.

Page 42

Output Terminals

OPERATION

3. If necessary, connect the chassis

ground terminal to either the positive or negative terminal. See the grounding chapter for details.

Page 31

4. Choose a suitable wire gauge and

crimping terminal for the load cables.

Page 39

5. Connect the positive load cable to the positive

output terminal and the negative cable to the negative output terminal.

6. Reattach the output terminal

cover.

Page 42

Connection Example

(PSU 6-200, 8-180,

12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25)

Use the included M8-sized bolt set to connect the load cables to the output terminals. Make sure that the connections are tight and that washers and spring washers are used to ensure a good connection.

2-Wire terminal lug

2-Spring washer

2-Hex Nut

4-Flat washer

2-M8x16L SCREW

(PSU 80-19, 10015, 150-10, 300-5, 400-3.8, 600-2.6)

Simply secure the stripped connectors inside each terminal.

Wire gauge: Awg14 to Awg10 Wire diameter: 1.63mm-

2.588mm

PSU Series User Manual

Steps

1. Partially unscrew the 2 screws beside the

terminals.

2. Line-up the notches in the cover with the 2

screws.

3. Tighten the screws to secure the cover over the

terminals.

(PSU 6-200, 8-180,

12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25)

2-M3x6L SCREW

(PSU 80-19, 100-15, 150-10, 300-5, 400-3.8, 600-2.6)

Removal

Reverse the procedure to remove the terminal covers.

Using the Output Terminal Cover

OPERATION

Background

The PSU series are designed to be directly mounted into 19 inch 1U rack mounts.

The PSU can be installed using the sliding mounts (GW Part number: GRM-001). See the GRM-001 manual for installation instructions.

Rack mount diagram: Sliding mounts

The following diagram shows the approximate dimensions of the GRM-001 sliding mounts. These sliding mounts should only be used within racks with a depth of 500mm.

405

380

Unit = mm

Background

The PSU power supplies use a novel method of configuring parameter values only using the voltage or current knobs. The knobs are used to quickly edit parameter values at 0.01, 0.1 or 1 unit steps at a time.

When the user manual says to set a value or parameter, use the steps below.

Using the Rack Mount Kit

How to Use the Instrument

PSU Series User Manual

Example

Use the Voltage knob to set a voltage of 10.05 volts.

1. Repeatedly press the Voltage knob

until the least significant digit is highlighted. This will allow the voltage to be edited in 0.01 volt steps.

2. Turn the Voltage knob till 0.05 volts

is shown on the voltage display.

Voltage

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

3. Repeatedly press the Voltage knob until the

most significant digit is highlighted. This will allow the voltage to be edited in 1 volt steps.

4. Turn the Voltage knob until 10.05 is shown.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Note

Notice the Set key becomes illuminated when setting the current or voltage.

If the voltage or current knobs are unresponsive, press the Set key first.

OPERATION

Background

The F-88 configuration setting allows the PSU to be reset back to the factory default settings. See page 194 for the default factory settings.

Steps

1. Press the Function key. The Function

key will light up.

Function

2. The display should show F-01 on the top and

the configuration setting for F-01 on the bottom.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

3. Rotate the Voltage knob to change

the F setting to F-88 (Factory Set Value).

Voltage

4. Use the Current knob to set the

F-88 setting to 1 (Return to factory default settings).

Current

5. Press the Voltage knob to confirm.

ConF will be displayed when it is configuring.

Voltage

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

6. Press the Function key again to exit.

The Function key light will turn off.

Function

Reset to Factory Default Settings

PSU Series User Manual

Background

The F-89 configuration setting allows you to view the PSU version number, build date, keyboard version, analog-control version, kernel build, test command version and test command build date.

Steps

1. Press the Function key. The

Function key will light up.

Function

2. The display should show F-01 on the top and

the configuration setting for F-01 on the bottom.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

3. Rotate the Voltage knob to change

the F setting to F-89 (Show Version).

Voltage

4. Rotate the Current knob to view the

version and build date for the various items.

Current

F-89

0-XX: Version (1/2) 1-XX: Version (2/2) 2-XX: Build On-Year. (1/2) 3-XX: Build On-Year. (2/2) 4-XX: Build On-Month. 5-XX: Build On-Day. 6-XX: Keyboard CPLD. (1/2) 7-XX: Keyboard CPLD. (2/2) 8-XX: Analog Board CPLD. (1/2) 9-XX: Analog Board CPLD. (2/2) A-XX: Analog Board FPGA (1/2) B-XX: Analog Board FPGA. (1/2)

View System Version and Build Date

OPERATION

C-XX: Kernel Build On-Year. (1/2) D-XX: Kernel Build On-Year. (2/2) E -XX: Kernel Build On-Month. F-XX: Kernel Build On-Day. G-XX: Test Command Version. (1/2) H-XX: Test Command Version. (2/2) I-XX: Test Command Build On-Year. (1/2) J-XX: Test Command Build On-Year. (2/2) K-XX: Test Command Build On-Month. L-XX: Test Command Build On-Day. M-XX: Reserved. (1/2) N-XX: Reserved. (2/2) O-XX: Option version. (1/2) P-XX: Option version. (2/2)

5. Press the Function key again to

exit. The Function key light will turn off.

Function

Example

Main Program Version: V01.00, 2013/06-01

0-01: Version 1-00: Version 2-20: Build On-Year. 3-13: Build On-Year. 4-06: Build On-Month. 5-01: Build On-Day.

Example

Keyboard CPLD Version: 0x030C

6-03: Keyboard CPLD Version. 7-0C: Keyboard CPLD Version.

Example

Analog CPLD Version: 0x0421

8-04: Analog CPLD Version. 9-21: Analog CPLD Version.

Example

Analog Board FPGA: 0x0241

PSU Series User Manual

A-02: Analog FPGA Version. B-41: Analog FPGA Version.

Example

Kernel Version: 2013/01/22

C-20: Kernel Build On-Year. D-13: Kernel Build On-Year. E-01: Kernel Build On-Month. F-22: Kernel Build On-Day.

Example

Test Command Version: V01:00, 2013/06/01

G-01: Test Command Version. H-00: Test Command Version. I-20: Test Command Build On-Year. J-13: Test Command Build On-Year. K-06: Test Command Build On-Month. L-01: Test Command Build On-Day.

Example

Reserved:

M-XX: Reserved. N-XX: Reserved.

Example

Option version

O-XX: Option version. (1/2) P-XX: Option version. (2/2)

OPERATION

The OVP level and OCP level has a selectable range that is based on the output voltage and output current, respectively. The OVP and OCP level is set to the highest level by default. The actual selectable OVP and OCP range depends on the PSU model.

When one of the protection measures are on, ALM indicator is lit red on the front panel and the type of alarm is also shown on the display. The ALM_CLR button can be used to clear any protection functions that have been tripped. By default, the output will turn off when the OVP or OCP protection levels are tripped.

The UVL will prevent you from setting a voltage that is less than the UVL setting. The UVL setting range is from 0% ~ 105% of the rated output voltage.

Basic Operation

This section describes the basic operations required to operate the power supply.

 Setting OVP/OCP/UVL → from page 49  C.V. priority mode → from page 52  C.C. priority mode → from page 56  Panel lock → page 59  Save/Recall setups → from page 59/60  Voltage Sense → from page 61

Before operating the power supply, please see the Getting Started chapter, page 9.

Setting OVP/OCP/UVL Levels

PSU Series User Manual

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Example: OVP alarm

Before setting the protection settings:

 Ensure the load is not connected.  Ensure the output is turned off.

Note

You can use the Function settings (F-13 and F-14) to apply limits to the voltage and current settings, respectively. You can set limitations so that the values do not exceed the set OVP and the set OCP level, and so that the values are not lower than the set UVL trip point.

By using this feature, you can avoid turning the output off by mistakenly setting the voltage or current to a value that exceeds the set OVP or OCP level or to a value that is lower than the set UVL trip point.

If you have selected to limit the voltage setting (F-14), you will no longer be able to set the output voltage to a value that is above about 95% of the OVP trip point or to a value that is lower than the UVL trip point.

If you have selected to limit the current setting (F-13), you will no longer be able to set the output current to a value that is above about 95% of the OCP trip point.

Steps

1. Press the PROT key. The PROT key

lights up.

PROT

OPERATION

2. The OVP protection function will be displayed

on the voltage display and the setting will be displayed on the current display.

Protection

function

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Protection

setting

Choose a Protection Function

3. Use the Voltage knob to select a

protection function.

Voltage

Range

OVP, OCP, UVL

Setting the Protection Level

4. Use the Current knob to set the

protection level for the selected function.

Current

Setting Range

PSU Model

OCP

OVP

UVL

6-200

5~220

0.6~6.6

0~6.3

8-180

5~198

0.8~8.8

0~8.4

12.5-120

5~132

1.25~13.75

0~13.12

15-100

5~110

1.5~16.5

0~15.75

20-76

5~83.6

2~22

0~21

30-50

5~55

3~33

0~31.5

40-38

3.8~41.8

4~44

0~42

50-30

3~33

5~55

0~52.5

60-25

2.5~27.5

5~66

0~63

80-19

1.9~20.9

5~88

0~84

100-15

1.5~16.5

5~110

0~105

150-10

1~11

5~165

0~157.5

300-5

0.5~5.5

5~330

0~315

400-3.8

0.38~4.18

5~440

0~420

600-2.6

0.26~2.86

5~660

0~630

PSU Series User Manual

5. Press PROT again to exit. The

PROT key light will turn off.

PROT

Clear OVP/OCP/UVL protection

The OVP, OCP or UVL protection can be cleared after it has been tripped by holding the ALM_CLR button for 3 seconds.

PROT

ALM_CLR

Background

Before setting the power supply to C.V. mode, ensure:

 The output is off.  The load is connected.

Steps

1. Press the Function key. The

Function key will light up.

Function

2. The display will show the function (F-01) on the

voltage display and the setting for the function in the current display.

VOLTAGE CURRENT

LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Function

number

Function

setting

Set to C.V. Priority Mode

When setting the power supply to constant voltage mode, a current limit must also be set to determine the crossover point. When the current exceeds the crossover point, the mode switches to C.C. mode. For details about C.V. operation, see page 24. C.C. and C.V. mode have two selectable slew rates: High Speed Priority and Slew Rate Priority. High Speed Priority will use the fastest slew rate for the instrument while Slew Rate Priority will use a user-configured slew rate.

OPERATION

3. Rotate the Voltage knob to change

the F setting to F-03 (V-I Mode Slew Rate Select).

Voltage

4. Use the Current knob to set the F-03

setting.

Set F-03 to 0 (CV High Speed Priority) or 2 (CV Slew Rate Priority).

Current

F-03

0 = CV High Speed Priority 2 = CV Slew Rate Priority

5. Press the Voltage knob to save the

configuration setting. ConF will be displayed when it is configuring.

Voltage

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

VSR indicator for CV Slew

Rate Priority (F-03=2)

6. If CV Slew Rate Priority was chosen as the

operating mode, set F-04 (Voltage Slew Rate Up) and the F-05 (Voltage Slew Rate Down) and save.

PSU Series User Manual

F-04 / F-05

0.001V~0.060V/msec (PSU 6-200)

0.001V~0.080V/msec (PSU 8-180)

0.001V~0.125V/msec (PSU 12.5-120)

0.001V~0.150V/msec (PSU 15-100)

0.001V~0.200V/msec (PSU 20-76)

0.001V~0.300V/msec (PSU 30-50)

0.001V~0.400V/msec (PSU 40-38)

0.001V~0.500V/msec (PSU 50-30)

0.001V~0.600V/msec (PSU 60-25)

0.001V~0.800V/msec (PSU 80-19)

0.001V~1.000V/msec (PSU 100-15)

0.001V~1.500V/msec (PSU 150-10)

0.001V~1.500V/msec (PSU 300-5)

0.001V~2.000V/msec (PSU 400-3.8)

0.001V~2.400V/msec (PSU 600-2.6)

7. Press the Function key again to exit

the configuration settings. The function key light will turn off.

Function

8. Use the Current knob to set the

current limit (crossover point).

Current

9. Use the Voltage knob to set the

voltage.

Voltage

Note

Notice the Set key becomes illuminated when setting the current or voltage. If the Voltage or Current knobs are unresponsive, press the Set key first.

10. Press the Output key. The

Output ON LED becomes lit.

Output

OPERATION

CV will become

illuminated (center)

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Note

Only the voltage level can be altered when the output is on. The current level can only be changed by pressing the Set key.

For more information on the Normal Function Settings, see page 101.

PSU Series User Manual

Background

Before setting the power supply to C.C. mode, ensure:

 The output is off.  The load is connected.

Steps

1. Press the Function key. The

Function key will light up.

Function

2. The display will show the function (F-01) on the

voltage display and the setting for the function in the current display.

VOLTAGE CURRENT

LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Function

number

Function

setting

3. Rotate the Voltage knob to change

the F setting to F-03 (V-I Mode Slew Rate Select).

Voltage

4. Use the Current knob to set the F-03

setting. Set F-03 to 1 (CC High Speed Priority) or 3 (CC Slew Rate Priority) and save.

Current

Set to C.C. Priority Mode

When setting the power supply to constant current mode, a voltage limit must also be set to determine the crossover point. When the voltage exceeds the crossover point, the mode switches to C.V. mode. For details about C.C. operation, see page 24. C.C. and C.V. mode have two selectable slew rates: High Speed Priority and Slew Rate Priority. High Speed Priority will use the fastest slew rate for the instrument while Slew Rate Priority will use a user-configured slew rate.

OPERATION

F-03

1 = CC High Speed Priority 3 = CC Slew Rate Priority

5. Press the Voltage knob to save the

configuration setting. ConF will be displayed when it is configuring.

Voltage

VOLTAGE CURRENT

LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

ISR indicator for CC Slew

Rate Priority (F-03=3)

6. If CC Slew Rate Priority was chosen as the

operating mode, set F-06 (Current Slew Rate Up) and F-07 (Current Slew Rate Down) and save.

F-06 / F-07

0.001A~2.000A / msec (PSU 6-200)

0.001A~1.800A / msec (PSU 8-180)

0.001A~1.200A / msec (PSU 12.5-120)

0.001A~1.000A / msec (PSU 15-100)

0.001A~0.760A / msec (PSU 20-76)

0.001A~0.500A / msec (PSU 30-50)

0.001A~0.380A / msec (PSU 40-38)

0.001A~0.300A / msec (PSU 50-30)

0.001A~0.250A / msec (PSU 60-25)

0.001A~0.190A / msec (PSU 80-19)

0.001A~0.150A / msec (PSU 100-15)

0.001A~0.100A / msec (PSU 150-10)

0.001A~0.025A / msec (PSU 300-5)

0.001A~0.008A / msec (PSU 400-3.8)

0.001A~0.006A / msec (PSU 600-2.6)

7. Press the Function key again to exit

the configuration settings. The Function key light will turn off.

Function

PSU Series User Manual

8. Use the Voltage knob to set the

voltage limit (crossover point).

Voltage

9. Use the Current knob to set the

current.

Current

Note

Notice the Set key becomes illuminated when setting the current or voltage. If the Voltage or Current knobs are unresponsive, press the Set key first.

10. Press the Output key. The

Output key becomes illuminated.

Output

CC will become

illuminated (right)

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Note

Only the current level can be altered when the output is on. The voltage level can only be changed by pressing the Set key.

For more information on the Normal Function Settings, see page 101.

OPERATION

Activate the panel lock

Press the Lock/Local key to active the panel lock. The key will become illuminated.

Lock/Local

Disable the panel lock

Hold the Lock/Local key for ~3 seconds to disable the panel lock. The key’s light will turn off.

Lock/Local

Unlock

Save Setup

11. Press the SHIFT key. The shift key

will light blue.

Shift

12. Hold the desired memory key for

>3 seconds (M1, M2, M3).

Function

(hold)

Panel Lock

The panel lock feature prevents settings from being changed accidentally. When activated, the Lock/Local key will become illuminated and all keys and knobs except the Lock/Local key and Output key (if active) will be disabled.

If the instrument is remotely controlled via the USB/LAN interface, the panel lock is automatically enabled.

Save Setup

The PSU has 3 dedicated keys (M1, M2, M3) to save the set current, set voltage, OVP, OCP and ULV settings.

PSU Series User Manual

13. When the setup is saved the unit will beep, the

setup will be saved and the memory number will be shown on the display.

Saved setup

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Save Setup

1. Press the SHIFT key. The shift key

will light blue.

Shift

2. Hold the desired memory key to

recall the desired setup (M1, M2, M3).

Function

3. When the setup is recalled the setup will be

loaded and the memory number will be shown on the display.

Recalled setup

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

Note

The F-15 function setting will determine whether the saved contents of the recalled memory setting are displayed or not.

Recall Setup

The PSU has 3 dedicated keys (M1, M2, M3) to recall setups.

OPERATION

WARNING

Ensure the output is off before handling the remote sense connector.

Use sense cables with a voltage rating exceeding the isolation voltage of the power supply.

Never connect sensing cables when the output is on. Electric shock or damage to the power supply could result.

Remote Sense Connector Overview

When using the remote sense connector make sure the wires that are used follow the following guidelines:

Wire gauge:

AWG 28 to AWG 16

Wire diameter:

0.320mm-1.29mm

Strip length:

5mm // 0.2 in.

+LS

-LS

-S

+S: Remote(+) sense +LS: Local (+) sense NC: Not connected

-LS: Local (-) sense

-S: Remote (-) sense

Voltage Sense

The PSU power supplies can be operated using local or remote voltage sense. By default the PSU ships configured for local sense.

Remote Sense Connector

The Remote Sense connector includes a detachable plug to facilitate making the sense connections. The remote sense connector also has a safety cover.

PSU Series User Manual

WARNING

Ensure the output is off before handling the remote sense connector.

Use sense cables with a voltage rating exceeding the isolation voltage of the power supply.

Never connect sensing cables when the output is on. Electric shock or damage to the power supply could result.

Always operate the PSU with the remote sense cover.

Connector

1. Place the cover

over the remote sense connector.

2. Secure the cover

with the provided screw.

M3x8L

Pan Head Screw

Remote Sense Cover

Local Sense

Local Sense Connection

PSU Load

Output Output

Input Input

S+

LS+

LS-

S-

Remote

Sense

Page 61

When using local sense, the sensing terminals are connected to the local sense terminals (via the local sense connections) and thus do not compensate for any possible voltage drop that is seen on the load cables. Local sense is only recommended when the voltage drop is of no consequence or for load-current applications. By default, the sense plug is already configured to local sensing.

Remote Sense

Remote sense is used to compensate for the voltage drop seen across load cables due to the resistance inherent in the load cables. The remote sense terminals are connected to the load terminals of the DUT to determine the voltage drop across the load cables.

Remote sense can compensate up to 1 volt (PSU 6-200/8-180/

12.5-120/15-100/20-76), 1.5 volts (PSU 30-50), 2 volts (PSU 40-38 /50-30), 3 volts (PSU 60-25), 4 volts (PSU 80-19) or 5 volts (PSU 10015/150-10/300-5/400-3.8/600-2.6) (compensation voltage, single line). Load cables should be chosen with a voltage drop less than the compensation voltage.

Although you can use remote sense to compensate up to 5V for a single line, it is recommended that the voltage drop is minimized to a maximum of 1V to prevent excessive output power consumption from the power supply and poor dynamic response to load changes.

OPERATION

PSU Series User Manual

WARNING

Ensure the output is off before connecting any sense cables.

Use sense cables with a voltage rating exceeding the isolation voltage of the power supply.

Never connect sensing cables when the output is on. Electric shock or damage to the power supply could result.

Note

Be sure to remove the sense jumpers from the remote sense connector so the unit is not using local sensing.

Single Load

1. Connect the S+ terminal to the positive

potential of the load. Connect the S- terminal to the negative potential of the load.

Output

S+

S-

PSU

Output

Load Input Input

Page 61

2. Operate the instrument as normal.

See the Basic Operation chapter for details.

Page 49

Parallel PSU Units

1. Connect the S+ terminals to the positive

potential of the load. Connect the S- terminals to the negative potential of the load.

OPERATION

Output

S+

S-

PSU #2

Output

S+

S-

PSU #1

Output

Load Input Input

Page 61

2. Operate the instrument as normal.

See the Parallel Operation chapter for details.

Page 68

Serial PSU Units

1. a. Connect the 1

S+ terminal to the positive

potential of the load.

b. Connect the 1st S- terminal to the positive output terminal of the second PSU unit.

c. Connect the 2nd S+ terminal to the positive terminal of the second PSU unit.

d. Connect the 2nd S- terminal to negative terminal of the load.

PSU Series User Manual

PSU #2

Load Input Input

Output

S+

S-

PSU #1

Output

S+

S-

Output

Page 61

2. Operate the instrument as normal.

See the Serial Operation chapter for details.

Page 77

Wire Shielding and Load line impedance

To help to minimize the oscillation due to the inductance and capacitance of the load cables, use an electrolytic capacitor in parallel with the load terminals.

To minimize the effect of load line impedance use twisted wire pairing.

PSU Load

s s

Twisted pair

Capacitor

Shield the sense wires and connect

the shield to the chassis ground.

Twisted pair

OPERATION

Parallel / Series Operation

This section describes the basic operations required to operate the power supply in series or parallel. Operating the PSU series in parallel increases the total current output of the power supply units. When used in series, the total output voltage of the power supplies can be increased.

When the units are used in parallel or in series, a number of precautions and limitations apply. Please read the following sections before operating the power supplies in parallel or series.

 Master-slave parallel overview → from page 68  Parallel connection → from page 71  Parallel operation → from page 75  Master-slave parallel calibration → from page 77  Master-slave Series overview → page 79  Series connection → page 81  Series operation → from page 82

PSU Series User Manual

Background

When connecting the PSU power supplies in parallel, up to 4 units can be used in parallel and all units must be of the same model with similar output settings.

To use the power supplies in parallel, units must be used in a “master-slave” configuration. In the master-slave configuration a “master” power

supply controls any other connected “slave”

power supplies. In order for the master unit to control the slave units, the master unit must use the analog control connector to control the slave units.

When using the Analog Control Connector, the connector must be wired correctly between the master and each of the slave units. For the complete connector pin assignment, see page 118, or alternatively, the PSU-01C, PSU-02C and the PSU-03C cables can be used to connect a master to unit to 1, 2 or 3 slave units, respectively.

Master-Slave Parallel Overview

OPERATION

Master

Load

Ext-V Ext-R

Slave

VMON

IMON

Slave

Analog Control Connector

Limitations

Display

 Only the master unit will display the voltage

and current.

OVP/ OCP/UVL

 Slave units follow the settings of the master

when OVP/OCP/UVL is tripped on the master unit.

Remote monitoring

 Voltage monitoring (VMON) and current

monitoring (IMON) are only supported on the master unit.

 The IMON current represents the total current

of the all the parallelized units.

Remote Sense

 Please see the remote sense chapter for details,

page 63.

PSU Series User Manual

Parallel Calibration

 The parallel calibration function can be used to

offset cables losses.

External Voltage and Resistance Control

 Voltage/Resistance controlled remote control

can only be used with the master unit.

 The full scale current (in parallel) is equivalent

to the maximum external voltage or resistance.

Internal Resistance

 For 2 units in parallel, the internal resistance is

actually half of the setting value.

 For 3 units in parallel, the internal resistance is

actually a third of the setting value.

 For 4 units in parallel, the internal resistance is

actually a fourth of the setting value.

 See function setting F-08 for internal resistance

settings, page 103.

Bleeder Control

 The Master unit is used to control the bleeder

settings. The bleeder resistors in all the slave units are always turned off when in parallel mode.

Output Voltage/ Output Current

Model

1 unit

2 units

3 units

4 units

PSU 6-200

200A

400A

600A

800A

PSU 8-180

180A

360A

540A

720A

PSU 12.5-120

12.5V

120A

240A

360A

480A

PSU 15-100

15V

100A

200A

300A

400A

PSU 20-76

20V

76A

152A

228A

304A

OPERATION

PSU 30-50

30V

50A

100A

150A

200A

PSU 40-38

40V

38A

76A

114A

152A

PSU 50-30

50V

30A

60A

90A

120A

PSU 60-25

60V

25A

50A

75A

100A

PSU 80-19

80V

19A

38A

57A

76A

PSU 100-15

100V

15A

30A

45A

60A

PSU 150-10

150V

10A

20A

30A

40A

PSU 300-5

300V

10A

15A

20A

PSU 400-3.8

400V

3.8A

7.6A

11.4A

15.2A

PSU 600-2.6

600V

2.6A

5.2A

7.8A

10.4A

Analog Control Connection

To operate the power supplies in parallel with the analog connectors, connect the analog connectors on the master and slave units as shown in the diagrams below. Alternatively, preconfigured cables can be used:

PSU-01C: 1 master with 1 slave PSU-02C: 1 master with 2 slaves PSU-03C: 1 master with 3 slaves

Master-Slave Parallel Connection

PSU Series User Manual

12 11

1 16 13 14

PRL OUT+ 9

8 20 19 13 14

PRL IN+

A COM

Status COM1

OUT ON Status

Current SUM

Alarm Status

PRL IN-

A COM

OUT ON/OFF CONT

Current Sum

Alarm_Status

MASTER SLAVE #1

SLAVE #2

Shut_Down

A COM

7 16

Shut_Down

OUT ON Status

1 Status COM1

8 20 19 13 14

PRL IN+

PRL IN-

A COM

OUT ON/OFF CONT

Current Sum

Alarm_Status

7 16

Shut_Down

OUT ON Status

1 Status COM1

SLAVE #3 9 8

20 19 13 14

PRL IN+

PRL IN-

A COM

OUT ON/OFF CONT

Current Sum

Alarm_Status 7 Shut_Down 1 Status COM1

OPERATION

Note

 After the power supplies are connected in

parallel, if you want to use the analog connector to control the power supplies, you must disassemble the cable of the master and then wire it yourself for control. Pin signal diagram is as shown below.

22 23 21 23 19 20

EXT-V/R CV CONT

A COM

EXT-V/R CC CONT

A COM

OUT ON/OFF CONT

A COM

MASTER

 The model of connecting in parallel has no place

voltage problem and can be used in common ground.

 The model of connecting in series has high

voltage due to the location. If analog control is to be used, it cannot be used in common ground and requires isolation control. Pin signal diagram is as shown below.

22 23 21 23 19 20

Isolated Analog

0-10V

Isolated Analog

0-10V

NO relay driven

By 24V DO

MASTER

Parallel Output Connection

If grounding the positive or negative terminals to the reference ground, be sure to ground the appropriate terminal on each unit (either positive or negative).

PSU Series User Manual

Example with negative terminal connected to ground

Slave #1

Master

Load Input

Input

Output

Ground

Output

Ground

Output

Slave #2

Output

Ground

Output

Steps

1. Ensure the power is off on all power supplies.

2. Choose a master and a slave unit(s).

3. Connect the analog connectors for the master

and slave units as shown above.

4. Remove the Output Terminal

covers.

Page 42

5. Connect the master and slave unit in parallel as

shown above.

6. Reattach the terminal covers.

Page 42

Note

Ensure the load cables have sufficient current capacity.

Page 39

The load wires and remote sense wires should use twisted-paired wiring of the shortest possible length.

OPERATION

Master-Slave Configuration

Before using the power supplies in parallel, the master and slave units need to be configured.

Steps

1. Configure the OVP, OCP and ULV

settings for the master unit.

Page 49

2. For each unit, hold the Function key while

turning the power on to enter the power on configuration settings.

Lock/Local PROT Function Test Set

Output

Unlock ALM_CLR M 1 M 2 M 3

Shift

: Long Push

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C C

C V

VOLTAGE CURRENT

PSU 40-38

DC Power Supply

0 - 40V / 0 - 38A

Voltage Current

3. Configure F-93 (Master/Slave)

setting for each master/slave unit.

Page 114 Unit

F-93

Independent (default setting)

Master unit with 1 slave in parallel

Master unit with 2 slaves in parallel

Master unit with 3 slaves in parallel

Slave (parallel)

4. Cycle the power on the units (reset the power).

Note

Configuration settings can be checked on both the master and slave units by pressing the Function key and checking F-93.

Only the Master OVP, OCP and UVL settings are used for protection. Slave protection levels are disregarded.

OHP works independently for each unit.

Master-Slave Parallel Operation

PSU Series User Manual

Master-Slave Operation

Only operate the power supplies in parallel if the units are configured correctly.

Steps

1. Turn on the master and slave units. The slave

unit(s) will show a blank display.

Master unit

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Slave units

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

2. Operation of all units is controlled

via the master unit. Operation of the master unit is the same as for a single unit. See the Basic Operation chapter.

Page 49.

3. Press the Output key to

begin. The output LED will become lit.

Output

Caution

Only operate the power supplies in parallel if using units of the same model number.

Note

The panel controls are disabled on slave units, including the output key. On slave units, only the Function key can be used to view the current settings.

OPERATION

Master-Slave Configuration

The F-16 function setting can be used to calibrate the output of PSU units connected in parallel.

If you feel the accuracy is not good enough when you measure the accuracy in parallel mode, the parallel calibration can be used to get better measurement accuracy.

Steps

1. Short all the terminals together. This is best

accomplished by connecting the master and all the slave units in parallel and then shorting the output terminals.

Slave #1, 2, 3

Master

Output

Ground

Output

Ground

Output

Short

2. Connect the slave units to the

master unit using the analog control connectors as described previously.

Page 71

3. Configure F-93 (Master/Slave)

setting for each master/slave unit, as described previously.

Page 75

4. Cycle the power on the units (reset the power).

Master-Slave Parallel Calibration

PSU Series User Manual

5. On the master unit, set F-16 (Auto

Calibration Parallel Control) to 2 to turn on the parallel calibration. Calibration will begin immediately.

Page 104

6. Whilst calibration is being performed, WAIT

will be displayed on the master screen. Calibration will take a few moments.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

7. When the calibration has finished, OK will be

displayed on the master screen.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

8. Remove the shorts from the terminals, and

proceed with parallel operation.

Note

When performing parallel calibration, make sure the terminals are connected with cables or bus bars that are able to withstand the combined current capacity of all the units in parallel.

OPERATION

Background

When connecting PSU power supplies in series, up to 2 units can be used in series and all units must be of the same model. When operated in series, the power supplies can be used to increase the voltage output or setup the power supplies to output both positive and negative polarities. Unlike with the parallel operation, the series operation does not require any special configuration as each power supply is operated and controlled individually.

When the units are used in series, a number of precautions and limitations apply. Please read this overview before operating the power supplies in series.

Master

Load

Ext-V Ext-R

Slave

VMON

IMON Ext-V

Ext-R

VMON

IMON

Limitations

Display

 Master and slave units display both the current

and the voltage. The total voltage is the sum of the units.

OVP/OCP/UVL

 OVP, OCP and UVL level for each unit must be

set separately.

 The OVP and OCP protections are tripped

independently on the master and slave.

Master-Slave Series Overview

PSU Series User Manual

Remote monitoring

 Voltage monitoring (VMON) and current

monitoring (IMON) should be performed on both units.

 The VMON voltage represents the voltage of

that particular unit.

Remote Sense

 Please see the voltage sense chapter for details,

page 61.

External Voltage and Resistance Control

 Voltage/Resistance controlled remote control

should be used on both units separately.

 The full scale voltage (in series) is equivalent to

the maximum external voltage or resistance.

Slew Rate

 The slave rate should be set for both units.

Internal Resistance

 The internal resistance should be set for both

units.

Bleeder Control

 The bleeder resistor setting should be set

equally on both units.

CAUTION

When using analog control connector to program or measure with PSU power supplies connected in series, make sure that each unit is separated and floating from each other.

WARNING

When PSU power supplies are connected in series and the load or one of the output terminals is grounded, no point on the output shall be more than ±600VDC above or below chassis ground.

OPERATION

Series Connection to increase Voltage Output

Unit #2

Unit #1

Load Input

Input

Output

Ground

Output

Ground

Output

Series Connection to Output Positive and Negative Polarity

Unit #2

Unit #1

Load Input

Input

Output

Ground

Output

Ground

Output

COM

Series Connection

If using the PSU in series, please be aware that each unit acts independently and thus there are no special communication buses for serial connections.

PSU Series User Manual

Note

The output reference ground (COMMON) can be grounded at the power supply side instead of the load, depending on the requirements. Local sensing should be used in this configuration.

Caution

When connecting the units in series, diodes should be connected across each output to prevent reverse voltage.

Steps

1. Ensure the power is off on both power supplies.

2. Connect the master and slave unit in series as

shown above to either increase the voltage output or to create a positive and negative output. Remember that how the units are grounded depends on the configuration of the series connection.

3. Use diodes across the output terminals to

prevent reverse voltage at startup or if one of the units unexpectedly shuts down. Ensure the diodes are rated to withstand the voltage and current output of the power supply.

4. Reattach the terminal cover.

Page 42

Note

Ensure load cables have sufficient current capacity.

Page 39

Series Configuration

Before using the power supplies in series, the master and slave units need to be configured.

1. Configure the OVP, OCP and UVL

settings for each unit.

Page 49

Series Operation

OPERATION

2. For each unit, hold the Function key while

turning the power on to enter the power on configuration settings.

Lock/Local PROT Function Test Set

Output

Unlock ALM_CLR M 1 M 2 M 3

Shift

: Long Push

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C C

C V

VOLTAGE CURRENT

PSU 40-38

DC Power Supply

0 - 40V / 0 - 38A

Voltage Current

3. Make sure each unit is set to

Independent (F-93 = 0). When using the power supplies in series, each unit is operated individually, and thus no unit is considered the master or slave.

Page 114

Unit

F-93

Independent

4. Cycle the power on the units (reset the power).

Note

Configuration settings can be checked for both the master and slave units by pressing the Function key.

Series Operation

Only operate the power supplies in series if the units are configured correctly.

1. Turn on both units. When connected in series

unit will only show the voltage and current of their own unit.

Unit #1

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Unit #2

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

PSU Series User Manual

2. Operation of both units is the same

as for a single unit. Each unit will only draw as much power as is programmed. Please see the basic operation chapter for details.

Page 49

3. Press the Output key on

each unit to begin. The output LED will become lit.

Output

CAUTION

Only operate the power supplies in series if using units of the same model number.

Only a maximum of 2 units can be used in series.

CAUTION

Ensure that the insulation capacity of the wiring is sufficient when connected in series. See page 31 for insulation capacity and grounding details.

OPERATION

Test Scripts

This section describes how to use the Test function to run, load and save test scripts for automated testing. The Test function is useful if you want to perform a number of tests automatically. The PSU test function can store ten test scripts in memory.

Each test script is programmed in a scripting language. For more information on how to create test scripts, please contact GW Instek.

 Test script file format→ from page 86  Test script settings → from page 86  Setting the test script settings → from page 87  Load test script → from page 88  Run test script → from page 89  Export test script → from page 90  Remove test script → from page 91

PSU Series User Manual

Background

The test files are saved in *.tst file format.

Each file is saved as tXXX.tst, where XXX is the save file number 001~010.

Test Run

Runs the chosen test script from the internal memory. A script must first be loaded into the internal memory before it can be run. See the test function Test Save, below.

The script will run as soon as the test function is started.

T-01

1~10

Test Copy

Copies a test script from the USB drive to the designated save slot in memory. A script must first be copied into internal memory before it can be run.

T-02

1~10 (USBPSU)

Test Export

Exports a script from the designated memory save slot to the USB drive.

T-03

1~10 (PSUUSB)

Test Remove

Deletes the chosen test file from the PSU internal memory.

T-04

1~10

Available Test Memory

Shows the amount of space left in memory for tests.

T-05

Displays the available memory in bytes.

Test Script File Format

Test Script Settings

OPERATION

Steps

The test script settings (T-01~T-10) are set with the Test key.

1. Press the Test key. The Test key

will light up.

TEST

2. The display will show T-01 on the left and the

memory no. for T-01 on the right.

The middle of the display will indicate if the desired file is available in memory or not. Y indicates Yes, N indicates No.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Test number Test setting

Available Y/N

3. Rotate the Voltage knob to change

the T setting (Test setting).

Voltage

Test Run

Test Copy

Test Export

Test Remove

T-01

T-02

T-03

T-04

Setting the Test Script Settings

PSU Series User Manual

4. Rotate the Current knob to choose a

memory number. (Excluding T-05)

Current

Range

1~10

5. Press the Voltage knob to complete

the setting.

Voltage

Exit

Press the Test key again to exit the Test settings. The Test key light will turn off.

TEST

Overview

Before a test script can be run, it must first be loaded into a one of the 10 memory save slots. Before loading a test script into memory:

 Ensure the script file is placed in the root

directory.

 Ensure the file name number corresponds to the

memory number that you wish to save to. For example t001.tst can only be loaded into memory number #01, t002.tst into memory number #02, and so on.

 Use the T-05 setting to see how much memory is

available in internal memory.

Steps

1. Insert a USB flash drive into the

front panel USB-A slot. Ensure the flash drive contains a test script in the root directory.

Load Test Script from USB

OPERATION

2. Turn on the power. MS ON (Mass Storage) will

be displayed on the screen after a few seconds if the USB drive is recognized. Conversely, MS OFF will be displayed if removed.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Note

If the USB drive is not recognized, check to see that the function settings for F-20 = 1 (page 104). If not, reinsert the USB flash drive.

3. Configure T-02 (Test Copy) to 1~10

(save memory slot)

Page 87

T-02 range

1~10

4. OK will be displayed when completed.

5. The script will now be available in the memory

slot the script was saved to.

Note

Error messages: If you load a file that is not present on the USB drive “Err 002” will be displayed on the display.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Overview

A test script can be run from one of ten memory slots.

Steps

1. Before a test script can be run, it

must first be loaded into one of the 10 memory save slots.

Page 88

Run Test Script

PSU Series User Manual

2. Configure T-01 (Run Test) to 1~10

(save memory slot no. to run)

Page 87

T-01 range

1~10

3. The test script will automatically start to run.

Note

Error messages: If you try to run a test script from an

empty memory location “Err 003” will be displayed on

the display.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Stop a Test

To stop (abort) a running test at any time, press the Test key. TEST STOP will be displayed and the unit will return to normal operation after a few moments.

TEST

Overview

The Export Test function saves a test file to the root directory of a USB flash drive.

 Files will be saved as tXXX.tst where XXX is the

memory number 001~010 from which the test script was exported from.

 Files of the same name on the USB flash drive

will be written over.

Steps

1. Insert a USB flash drive into the

front panel USB-A slot.

Export Test Script to USB

OPERATION

2. Turn on the power. MS (Mass Storage) will be

displayed on the screen after a few seconds if the USB drive is recognized.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Note

If the USB drive is not recognized, check to see that the function settings for F-20 = 1 (page 103). If not, reinsert the USB flash drive.

3. Configure T-03 (Test Export) to

1~10 (save memory slot)

Page 87

T-03 range

1~10

4. The script will now be copied to the USB flash

drive.

OK will be displayed when completed.

Note

Error messages: If you try to export a test script from

an empty memory location “Err 002” will be displayed

on the display.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

Overview

The Remove Test function will delete a test script from the internal memory.

Steps

1. Select T-04 (Test Remove) and

choose which test script to remove from the internal memory.

Page 87

T-04 range

1~10

Remove Test Script

PSU Series User Manual

2. The test script will be removed from the

internal memory.

OK will be displayed when completed.

Note

Error messages: If you try to remove a test script from

an empty memory location “Err 003” will be displayed

on the display.

VOLTAGE CURRENT

VSR LAN RMT ERR DLY ALM ISR M 1 M 2 M 3 RUN

C V C C

V A

CONFIGURATION

Configuration Overview ........................................... 94

Configuration Table ........................................................................ 94

Normal Function Settings ............................................................ 101

Interface Configuration Settings ................................................. 104

USB / GPIB Settings ....................................................... 104

LAN Settings ..................................................................... 105

UART Settings .................................................................. 107

System Settings ............................................................................... 108

Power On Configuration Settings ............................................... 109

Trigger Input and Output Configuration Settings ................... 111

Special Function ............................................................................. 112

Setting Normal Function Settings ............................................... 112

Setting Power On Configuration Settings ................................. 114

CONFIGURATION

PSU Series User Manual

Normal Function Settings

Setting

Setting Range

Output ON delay time

F-01

0.00s~99.99s

Output OFF delay time

F-02

0.00s~99.99s

V-I mode slew rate select

F-03

0 = CV high speed priority (CVHS) 1 = CC high speed priority (CCHS) 2 = CV slew rate priority (CVLS) 3 = CC slew rate priority (CVLS)

Rising voltage slew rate

F-04

0.001~0.060V/msec (PSU 6-200)

0.001~0.080V/msec (PSU 8-180)

0.001~0.125V/msec (PSU 12.5-120)

0.001~0.150V/msec (PSU 15-100)

0.001~0.200V/msec (PSU 20-76)

0.001~0.300V/msec (PSU 30-50)

0.001~0.400V/msec (PSU 40-38)

0.001~0.500V/msec (PSU 50-30)

Configuration Overview

Configuration of the PSU power supplies is divided into five different configuration settings: Normal Function, USB/GPIB, LAN, UART, System Configuration Settings, Power ON Configuration, Trigger Input/Output Configuration Settings and Special Function Settings. Power ON Configuration differs from the other settings in that the settings used with Power ON Configuration settings can only be set during power up. The other configuration settings can be changed when the unit is already on. This prevents some important configuration parameters from being changed inadvertently. Power On Configuration settings are numbered F-90 to F-98 and the other configuration settings are numbered F-00 to F61, F-70 to F-78, F-88 to F-89 and F100 to F122. The Special Function Settings are used for calibration, firmware updated and other special functions; these functions are not supported for end-user use.

Configuration Table

Please use the configuration settings listed below when applying the configuration settings.

CONFIGURATION

0.001~0.600V/msec (PSU 60-25)

0.001~0.800V/msec (PSU 80-19)

0.001~1.000V/msec (PSU 100-15)

0.001~1.500V/msec (PSU 150-10)

0.001~1.500V/msec (PSU 300-5)

0.001~2.000V/msec (PSU 400-3.8)

0.001~2.400V/msec (PSU 600-2.6)

Falling voltage slew rate

F-05

0.001~0.060V/msec (PSU 6-200)

0.001~0.080V/msec (PSU 8-180)

0.001~0.125V/msec (PSU 12.5-120)

0.001~0.150V/msec (PSU 15-100)

0.001~0.200V/msec (PSU 20-76)

0.001~0.300V/msec (PSU 30-50)

0.001~0.400V/msec (PSU 40-38)

0.001~0.500V/msec (PSU 50-30)

0.001~0.600V/msec (PSU 60-25)

0.001~0.800V/msec (PSU 80-19)

0.001~1.000V/msec (PSU 100-15)

0.001~1.500V/msec (PSU 150-10)

0.001~1.500V/msec (PSU 300-5)

0.001~2.000V/msec (PSU 400-3.8)

0.001~2.400V/msec (PSU 600-2.6)

Rising current slew rate

F-06

0.001~2.000A/msec (PSU 6-200)

0.001~1.800A/msec (PSU 8-180)

0.001~1.200A/msec (PSU 12.5-120)

0.001~1.000A/msec (PSU 15-100)

0.001~0.760A/msec (PSU 20-76)

0.001~0.500A/msec (PSU 30-50)

0.001~0.380A/msec (PSU 40-38)

0.001~0.300A/msec (PSU 50-30)

0.001~0.250A/msec (PSU 60-25)

0.001~0.190A/msec (PSU 80-19)

0.001~0.150A/msec (PSU 100-15)

0.001~0.100A/msec (PSU 150-10)

0.001~0.025A/msec (PSU 300-5)

0.001~0.008A/msec (PSU 400-3.8)

0.001~0.006A/msec (PSU 600-2.6)

PSU Series User Manual

Falling current slew rate

F-07

0.001~2.000A/msec (PSU 6-200)

0.001~1.800A/msec (PSU 8-180)

0.001~1.200A/msec (PSU 12.5-120)

0.001~1.000A/msec (PSU 15-100)

0.001~0.760A/msec (PSU 20-76)

0.001~0.500A/msec (PSU 30-50)

0.001~0.380A/msec (PSU 40-38)

0.001~0.300A/msec (PSU 50-30)

0.001~0.250A/msec (PSU 60-25)

0.001~0.190A/msec (PSU 80-19)

0.001~0.150A/msec (PSU 100-15)

0.001~0.100A/msec (PSU 150-10)

0.001~0.025A/msec (PSU 300-5)

0.001~0.008A/msec (PSU 400-3.8)

0.001~0.006A/msec (PSU 600-2.6)

Internal resistance setting

F-08

0~0.030Ω (PSU 6-200)

0~0.044Ω (PSU 8-180) 0~0.104Ω (PSU 12.5-120) 0~0.150Ω (PSU 15-100) 0~0.263Ω (PSU 20-76) 0~0.600Ω (PSU 30-50) 0~1.053Ω (PSU 40-38) 0~1.667Ω (PSU 50-30) 0~2.400Ω (PSU 60-25) 0~4.210Ω (PSU 80-19) 0~6.667Ω (PSU 100-15) 0~15.00Ω (PSU 150-10) 0~60.00Ω (PSU 300-5) 0~105.3Ω (PSU 400-3.8) 0~230.8Ω (PSU 600-2.6)

Bleeder circuit control

F-09

0 = OFF, 1 = ON, 2 = AUTO

Buzzer ON/OFF control

F-10

0 = OFF, 1 = ON

OCP Delay Time

F-12

0.1 ~ 2.0 sec

Current Setting Limit (I-Limit)

F-13

0 = OFF, 1 = ON

Voltage Setting Limit (V-Limit)

F-14

0 = OFF, 1 = ON

Display memory parameter when recalling (M1, M2, M3)

F-15

0 = OFF, 1 = ON

CONFIGURATION

Auto Calibration Parallel Control

F-16

0 = Disable, 1 = Enable, 2 = Execute Parallel Calibration and set to Enable. Note: Must be a short between each unit before starting.

Measurement Average Setting

F-17

0 = Low, 1 = Middle, 2 = High

Alarm Recovery and Output Status

F-18

0 = Safe Mode, 1 = Force Mode

Lock Mode

F-19

0:Lock Panel, Allow Output OFF 1:Lock Panel, Allow Output ON/OFF

USB/GPIB Settings

Show front panel USB status

F-20

0 = None, 1 = Mass Storage

Show rear panel USB status

F-21

0 = None, 1 = Linking to PC

Setup rear USB Speed

F-22

0 = Disable USB, 1 = Full Speed, 2 = Auto Detect Speed

GPIB Address

F-23

0 ~ 30

GPIB Enable/Disable

F-24

0 = Disable GPIB, 1 = Enable GPIB

Show GPIB available status

F-25

0 = No GPIB, 1 = GPIB is available

SCPI Emulation

F-26

0 = GW Instek, 1 = TDK GEN, 2 = Agilent 5700, 3 = Kikusui PWX, 4 = AMREL SPS

LAN Settings

Show MAC Address-1

F-30

0x00~0xFF

Show MAC Address-2

F-31

0x00~0xFF

Show MAC Address-3

F-32

0x00~0xFF

Show MAC Address-4

F-33

0x00~0xFF

Show MAC Address-5

F-34

0x00~0xFF

Show MAC Address-6

F-35

0x00~0xFF

LAN Enable

F-36

0 = OFF, 1 = ON

DHCP

F-37

0 = OFF, 1 = ON

IP Address-1

F-39

0~255

IP Address-2

F-40

0~255

IP Address-3

F-41

0~255

IP Address-4

F-42

0~255

Subnet Mask-1

F-43

0~255

Subnet Mask-2

F-44

0~255

Subnet Mask-3

F-45

0~255

PSU Series User Manual

Subnet Mask-4

F-46

0~255

Gateway-1

F-47

0~255

Gateway-2

F-48

0~255

Gateway-3

F-49

0~255

Gateway-4

F-50

0~255

DNS address -1

F-51

0~255

DNS address -2

F-52

0~255

DNS address-3

F-53

0~255

DNS address-4

F-54

0~255

Socket Server Enable/Disable

F-57

0 = Disable, 1 = Enable Show Socket Server Port

F-58

No setting

Web Server Enable/Disable

F-59

0 = Disable, 1 = Enable

Web Password Enable/Disable

F-60

0 = Disable, 1 = Enable Web Enter Password

F-61

0000~9999

UART Settings

UART Mode

F-70

0 = Disable UART, 1 = RS232, 2 = RS485 4W, 3 = RS485 2W

UART Baud Rate

F-71

0 = 1200, 1 = 2400, 2 = 4800, 3 = 9600, 4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200

UART Data Bits

F-72

0 = 7 bits, 1 = 8 bits

UART Parity

F-73

0 = None, 1 = Odd, 2 = Even

UART Stop Bit

F-74

0 = 1 bit, 1 = 2 bits

UART TCP

F-75

0 = SCPI, 1 = TDK (emulation mode)

UART Address (For multi-unit remote control)

F-76

00 ~ 30 UART Multi-Drop control

F-77

0 = Disable, 1 = Master, 2 = Slave, 3 = Display information

UART Multi-Drop status

F-78

Displayed parameter: AA-S AA: 00~30 (Address), S: 0~1 (Off-line/On-line status).

System Settings

Factory Set Value

F-88

0 = None 1 = Return to factory default settings

CONFIGURATION

Show Version

F-89

0, 1 = Version 2, 3, 4, 5 = Build date (YYYYMMDD) 6, 7 = Keyboard CPLD 8, 9 = Analog Board CPLD A, B = Analog Board FPGA C, D, E, F = Kernel Build

(YYYYMMDD) G, H = Test Command Version I, J, K, L = Test Command Build

(YYYYMMDD) M,N = Reserved O,P = Option module

Power On Configuration Settings*

CV Control

F-90

0 = Control by Local 1 = Control by External Voltage 2 = Control by External Resistor -

Rising

3 = Control by External Resistor -

Falling

4 = Control by Isolated Board

CC Control

F-91

0 = Control by Local 1 = Control by External Voltage 2 = Control by External Resistor -

Rising

3 = Control by External Resistor -

Falling

4 = Control by Isolated Board

Output Status when Power ON

F-92

0 = Safe Mode (Always OFF), 1 = Force Mode (Always ON), 2 = Auto Mode (Status before last time power OFF)

Master/Slave Configuration

F-93

0 = Independent 1 = Master with 1 slave in parallel 2 = Master with 2 slaves in parallel 3 = Master with 3 slaves in parallel 4 = Slave (parallel)

External Output Logic

F-94

0 = High ON, 1 = Low ON

Monitor Voltage Select

F-96

0 = 5V , 1 = 10V

Control Range

F-97

0 = 5V [5kΩ], 1 = 10V [10kΩ]

PSU Series User Manual

External Output Control Function

F-98

0 = OFF, 1 = ON Trigger Input and Output Configuration Settings

Trigger Input Pulse Width

F100

0~60ms. 0 = trigger controlled by trigger level.

Trigger Input Action

F102

0 = None 1 = Output ON/OFF (refer to F103) 2 = Setting (refer to F104 & F105) 3 = Memory (refer to F106)

Output State When Receiving Trigger

F103

0 = OFF 1 = ON

Apply Voltage Setting on Trigger

F104

0 ~ rated voltage (only applicable when F102 =2)

Apply Current Setting on Tr igger

F105

0 ~ rated current (only applicable when F102 =2)

Recall memory number

F106

1 ~ 3 (M1 ~ M3)

Trigger Output Pulse Width

F120

0 ~ 60ms. 0 = trigger output is set to the active level, not pulse width.

Trigger Output Level

F121

0 = LOW, 1 = HIGH (If F120 = 0)

Trigger Source

F122

0 = None 1 = Switching the output on or off 2 = Changing a setting 3 = Recalling a memory

Special Function Settings*

Calibration

F-00

0000 ~ 9999

*Note

Power on configuration settings only can be set during power up. Under normal operation they only can be viewed.

100

Instek PSU6-200, PSU8-180, PSU12.5-120, PSU15-100, PSU20-76 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual