ITech IT6121, IT6151, IT6153, IT6154 User Manual

The Itech IT6153 is a versatile power supply that finds its application in laboratories, and in production and service areas wherever it is necessary to have a stabilized DC power supply. It is a digitally controlled, programmable, high resolution DC Power Supply. The model is single-channel, has a voltage range of 0 to 60 V and a maximum current of 5 A. Other specifications include minimum voltage resolution of 10 mV and a current resolution of 1 mA. The product combines compact size with a large color TFT-LCD display for easy programming and monitoring. Itech IT6153 is programmable through the front panel and remotely via USB, RS232, and LAN. Additional features include built-in OVP, OCP, OPP, OTP protections and a built-in cooling fan that makes the device suitable for continuous operation even in harsh ambient conditions.

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High Resolution and High

Speed Programmable Power

Supply

Series IT6100 User’s Manual

Model: IT6121/IT6122/IT6123/IT6151/IT6152/

IT6153/IT6154

Version: V1.1

Notices

No part of this manual may be reproduced in any form or by any means

(including electronic storage and retrieval or translation into a foreign language) without prior permission and written consent from Itech Electronics,

Co., Ltd. as governed by international copyright laws.

Manual Part Number

IT6100-402196

Revision

1st Edition: May 26, 2015

Itech Electronics, Co., Ltd.

Trademarks

Pentium is U.S. registered trademarks of Intel Corporation.

Microsoft, Visual Studio, Windows and

MS Windows are registered trademarks of Microsoft Corporation in the United

States and/or other countries and regions.

Warranty Safety Notices

The materials contained in this document are provided “as is”, and is subject to change, without prior notice, in future editions. Further, to the maximum extent permitted by applicable laws, ITECH disclaims all warrants, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. ITECH shall not be held liable for errors or for incidental or indirect damages in connection with the furnishing, use or application of this document or of any information contained herein.

Should ITECH and the user enter into a separate written agreement with warranty terms covering the materials in this document that conflict with these terms, the warranty terms in the separate agreement shall prevail.

Technology Licenses

The hardware and/or software described herein are furnished under a license and may be used or copied only in accordance with the terms of such license.

A CAUTION sign denotes a hazard.

It calls attention to an operating procedure or practice that, if not correctly performed or adhered to, could result in damage to the product or loss of important data.

Do not proceed beyond a

CAUTION sign until the indicated conditions are fully understood and met.

A WARNING sign denotes a hazard. It calls attention to an operating procedure or practice that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.

Restricted Rights Legend

Restricted permissions of the U.S. government. Permissions for software and technical data which are authorized to the U.S. Government only include those for custom provision to end users

ITECH provides this customary commercial license in software and technical data pursuant to FAR 12.211

(Technical Data) and 12.212 (Computer

Software) and, for the Department of

Defense, DFARS 252.227-7015

(Technical Data – Commercial Items) and DFARS 227.7202-3 (Rights in

Commercial Computer Software or

Computer Software Documentation).

NOTE

A NOTE sign denotes important hint. It calls attention to tips or supplementary information that is essential for users to refer to.

IT6100 User’s Manual

Quality Certification and Assurance

We certify that IT6100 series power supply meets all the published specifications.

Warranty

ITECH warrants that the product will be free from defects in material and workmanship under normal use for a period of one (1) year from the date of delivery (except those described in the Limitation of Warranty below).

For warranty service or repair, the product must be returned to a service center designated by ITECH.

 The product returned to ITECH for warranty service must be shipped

PREPAID. And ITECH will pay for return of the product to customer.

 If the product is returned to ITECH for warranty service from overseas, all the freights, duties and other taxes shall be on the account of customer.

Limitation of Warranty

This Warranty will be rendered invalid if the product is:

 Damage caused by circuit installed by customer or using customer own products or accessories;

 Modified or repaired by customer without authorization;

 Damage caused by circuit installed by customer or not operating our products under designated environment;

 The product model or serial number is modified, deleted, removed or illegible;

 Damaged as a result of accidents, including but not limited to lightning, moisture, fire, improper use or negligence.

Safety Symbols

ON (power on) Direct current

Alternating current OFF (power off)

Both direct and alternating current

Power-on state

Protective conductor terminal Power-off state

Earth (ground) terminal Reference terminal

Caution, risk of electric shock Positive terminal

Negative terminal Warning, risk of danger (refer to this manual for specific

Warning or Caution information)

Frame or chassis terminal - -

IT6100 User’s Manual

Safety Precautions

The following safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or specific warnings elsewhere in this manual will constitute a default under safety standards of design, manufacture and intended use of the instrument. ITECH assumes no liability for the customer’s failure to comply with these precautions.

 Do not use the instrument if it is damaged. Before operation, check the casing to see whether it cracks. Do not operate the instrument in the presence of inflammable gasses, vapors or dusts.

 The power supply is provided with a three-core power line during delivery and should be connected to a three-core junction box. Before operation, be sure that the power supply is well grounded. Make sure to use the power cord supplied by ITECH.

 Check all marks on the instrument before connecting the instrument to power supply.

 Use electric wires of appropriate load. All loading wires should be capable of bearing maximum short-circuit of electronic load without overheating. If there are multiple loads, each pair of the load power cord must be carry out the full rated short-circuit output current of the power securely.

 Ensure the voltage fluctuation of mains supply is less than 10% of the working voltage range in order to reduce risks of fire and electric shock.

 Do not install alternative parts on the instrument or perform any unauthorized modification.

 Do not use the instrument if the detachable cover is removed or loosen.

 To prevent the possibility of accidental injuries, be sure to use the power adapter supplied by the manufacturer only.

 Never use the instrument with a life-support system or any other equipment subject to safety requirements.

 Failure to use the instrument as directed by the manufacturer may render its protective features void.

 Always clean the casing with a dry cloth. Do not clean the internals.

 Make sure the vent hole is always unblocked.

Environmental Conditions

The instrument is designed for indoor use and an area with low condensation. The table below shows the general environmental requirements for the instrument. The speed of fan will change intelligently by the temperature of radiator. When the temperature is up to 40°C, the fan will be on and adjust intelligently when temperature changes.

Environmental Conditions

Operating temperature

Operating humidity

Storage temperature

Requirements

0°C to 40°C

20%-80% (non-condensation)

-20°C to 70 °C

IT6100 User’s Manual

Altitude

Pollution degree

Installation category

≤2,000m

Pollution degree 2

Ⅱ

NOTE

To make accurate measurements, allow the instrument to warm up for 30 min before operation.

Regulatory Markings

The CE mark is a registered trademark of the European

Community. This CE mark shows that the product complies with all the relevant European Legal Directives.

The instrument complies with the

WEEE Directive (2002/96/EC) marking requirement. This affixed product label indicates that you must not discard the electrical/electronic product in domestic household waste.

This symbol indicates the time period during which no hazardous or toxic substances are expected to leak or deteriorate during normal use. The expected service life of the product is

10 years. The product can be used safely during the 10-year Environment

Friendly Use Period (EFUP). Upon expiration of the EFUP, the product must be immediately recycled.

Waste Electrical and Electronic Equipment (WEEE)

Directive

2002/96/EC Waste Electrical and Electronic Equipment

(WEEE) Directive

This product complies with the WEEE Directive (2002/96/EC) marking requirement. This affix product label indicates that you must not discard the electrical/electronic product in domestic household waste.

Product Category

With reference to the equipment classifications described in the

Annex I of the WEEE Directive, this instrument is classified as a

“Monitoring and Control Instrument” product.

To return this unwanted instrument, contact your nearest ITECH office.

iii

IT6100 User’s Manual

Compliance Information

Complies with the essential requirements of the following applicable European

Directives, and carries the CE marking accordingly:

 Electromagnetic Compatibility (EMC) Directive 2014/30/EU

 Low-Voltage Directive (Safety) 2014/35/EU

Conforms with the following product standards:

EMC Standard

IEC 61326-1:2012/ EN 61326-1:2013 ¹²³

Reference Standards

CISPR 11:2009+A1:2010/ EN 55011:2009+A1:2010 (Group 1, Class A)

IEC 61000-4-2:2008/ EN 61000-4-2:2009

IEC 61000-4-3:2006+A1:2007+A2:2010/ EN 61000-4-3:2006+A1:2008+A2:2010

IEC 61000-4-4:2004+A1:2010/ EN 61000-4-4:2004+A1:2010

IEC 61000-4-5:2005/ EN 61000-4-5:2006

IEC 61000-4-6:2008/ EN 61000-4-6:2009

IEC 61000-4-11:2004/ EN 61000-4-11:2004

1. The product is intended for use in non-residential/non-domestic environments. Use of the product in residential/domestic environments may cause electromagnetic interference.

2. Connection of the instrument to a test object may produce radiations beyond the specified limit.

3. Use high-performance shielded interface cable to ensure conformity with the EMC standards listed above.

Safety Standard

IEC 61010-1:2010/ EN 61010-1:2010

IT6100 User’s Manual

CONTENTS

Quality Certification and Assurance ................................................................................................................ i

Warranty ........................................................................................................................................................... i

Limitation of Warranty ..................................................................................................................................... i

Safety Symbols ................................................................................................................................................. i

Safety Precautions ........................................................................................................................................... ii

Environmental Conditions .............................................................................................................................. ii

Regulatory Markings ...................................................................................................................................... iii

Waste Electrical and Electronic Equipment (WEEE) Directive .................................................................... iii

Compliance Information ................................................................................................................................ iv

Chapter1 Installing the Instrument .............................................................................................................. 1

1.1 Verifying the Shipment.............................................................................................................................. 1

1.2 Instrument Size Introduction ..................................................................................................................... 1

1.3

Adjusting the Carrying Handle ................................................................................................................. 3

1.4 Racking Mount the Instrument ................................................................................................................. 3

1.5 Connecting the Power Cord ...................................................................................................................... 3

Chapter2 Quick Start ..................................................................................................................................... 5

2.1 Brief Introduction ...................................................................................................................................... 5

2.2 Front Panel Introduction ........................................................................................................................... 5

2.3 Keyboard Introduction .............................................................................................................................. 7

2.4 Rear Panel Introduction ............................................................................................................................. 8

2.5 Power-on Selftest ...................................................................................................................................... 9

2.6 Output Checkout ..................................................................................................................................... 11

Chapter3 Functions and Characteristics .................................................................................................. 13

3.1 Front-panel Operation Overview ............................................................................................................ 13

3.2 Setting Voltage......................................................................................................................................... 13

3.3 Setting Current ........................................................................................................................................ 14

3.4 Saving and Recalling Operation ............................................................................................................. 14

3.5 Menu Operation ....................................................................................................................................... 15

3.6 Over Voltage Protection Function ........................................................................................................... 22

3.6 Output Operation ..................................................................................................................................... 23

3.7 Remote Sense .......................................................................................................................................... 23

3.8 Milliohm Meter ....................................................................................................................................... 24

3.9 Voltage Meter .......................................................................................................................................... 24

Chapter4 Technical Specification .............................................................................................................. 26

4.1 Specifications .......................................................................................................................................... 26

4.2 Supplemental Characteristics .................................................................................................................. 27

Chapter5 Remote Operation Mode ........................................................................................................... 29

5.1 Communication Cable ............................................................................................................................. 29

5.2 Communication between Power Supply and Computer ......................................................................... 30

Appendix ............................................................................................................................................................... 31

Specifications of Red and Black Test Lines .................................................................................................. 31

Installing the Instrument

Chapter1 Installing the Instrument

1.1 Verifying the Shipment

Unpack the box and check the contents before operating the instrument. If wrong items have been delivered, if items are missing, or if there is a defect with the appearance of the items, contact the dealer from which you purchased the instrument immediately. The package contents include:

Checklist of Package Contents

Item

IT6100 power supply

Power cord

USB cable

Ex-factory Test

Report

Qty. Model x1 x1 x1 x1 x1

IT6100 series

IT-E171/IT-E172

/IT-E173/IT-E17

Remarks

The IT6100 series include:

IT6121/IT6122/IT6123/

IT6151/IT6152/IT6153/IT6154

User may select an appropriate power cord that matches the specifications of power socket used in the area. See the

Section Connecting the Power

Cord for details.

It contains IT6100 power supply

User’s Manual, Programming

Guide and other user documentations.

It is the test report of the instrument before delivery.

Note

Upon verification of the shipment, keep the package and relevant contents thereof in a safe place. When returning the instrument for warranty service or repair, the specified packing requirements shall be met. Refer to IT6100 User’s Manual for detailed requirements on returns.

IT6100 series power supply has the following optional accessory:

 IT-E151:19 inch rack mount

 IT-E121:RS232 communication cable

 IT-E122:USB communication cable

 IT-E135:GPIB connector

 IT-E123:RS485 communication cable

1.2 Instrument Size Introduction

The instrument should be installed at well-ventilated and rational-sized space.

Please select appropriate space for installation based on the power supply size.

Model IT6120 Series

Installing the Instrument

Overall dimensions

Width: 214.5 mm

Height: 88.2 mm

Depth: 354.6 mm

Detailed dimensional drawings

Model IT6150 Series

(Unit: mm)

Overall dimensions

Width: 429 mm

Height: 88.2 mm

Depth: 354.6 mm

Detailed dimensional drawings

Installing the Instrument

1.3 Adjusting the Carrying Handle

To adjust the position, grasp the handle by the sides and pull outward. Then, rotate the handle to the desired position.

Bench-top viewing positions Carrying position

1.4 Racking Mount the Instrument

You can mount the IT6120 and IT6150 series power supply in a standard 19-inch rack cabinet. For details, please see the corresponding rack mounting installation instruction.

1.5 Connecting the Power Cord

Before connecting the power cord, please ensure the power switch of the instrument is turned OFF. Only use the power cord supplied as a standard accessory. A summary of connection procedures is given below.

AC power input level

IT6120/IT6150 series power supply working voltage is 110V and 220V. Please pay

Installing the Instrument attention to the AC power input level as below.

AC power input level:

 Option Opt.01: 220VAC ± 10%, 47 to 63 Hz

 Option Opt.02: 110 VAC ± 10%, 47 to 63 Hz

Categories of power cords

IT6100 series power supply provides the standard power cords as below.

Please select appropriate power cords appropriate to local voltage based on the specifications of power cords below. If purchased model fails to meet local voltage requirements, please contact distributor or factory for change.

E

L N

China

IT-E171

L N

America,

Canada,Japan

IT-E172

Europe

IT-E173

L N

Britain

IT-E174

Quick Start

Chapter2 Quick Start

2.1 Brief Introduction

IT6100 Series power supplies are high resolution and high speed programmable

DC power supplies. This series have very small size of 2U, and they are equipped with 5 2

digital voltage meter and m

Ω

meter. That means you don’t need to invest extra money to purchase digital meter. This series offer flexible solution to general laboratory and workshop requirement.

 VFD display

 Liner programmable power supply with low ripple and noise

 Very high accuracy and resolution of 0.1mV/0.1mA

 High rise speed<30mS

 Equipped with 5 2

digital voltage meter and m

Ω

meter

 Small size can be installed in standard 19’’ rack or bench top

 Remote control via USB/RS232/GPIB

 Limit voltage protection

 Over current/temperature protection

 Free software for control the machine on computer

Model

IT6121

IT6122

IT6123

IT6151

IT6152

IT6153

IT6154

Voltage Current Power

20V 5A 100W

32V

72V

5.2V

20V

30V

60V

1.2A

60A

27A

18A

96W

86W

312W

540W

2.2 Front Panel Introduction

IT6120 Series’ Front Panel as shown below.

Quick Start

Fig 1.1 IT6120 series’ front panel

VFD display

Rotary knob

Power switch

Numeric keys and ESC key

Function keys

Up , down key and ENTER key

Output terminals

IT6150 Series’ Front Panel as shown below.

1 2

3 4 5 6 7

Fig 1.2 IT6150 series’ front panel

V FD display

Rotary knob

Power switch

8

Quick Start

Numeric keys and ESC key

Function keys

Up, down key and ENTER key

Input terminals

Output terminals

2.3 Keyboard Introduction

Detailed description of keys: keys

Power

0 ～ 9

Name and functions

Power on the instrument.

Numeric button

Dot mark.

Esc key. Exit under any conditions.

Set the voltage value

Set the current value

Save

Recall

On/Off

Shift

Save the currently data of the power supply to internal register

Recall the data from the internal register

Set the output state of power supply

Use it with multiple key

Enter

Up key. Select menu items or increase output voltage in menu operation.

Down key. Select menu items or decrease output voltage in menu operation.

Enter key.

Combination keys. Press (Shift) button first and then other keys to achieve all kinds functions in the following table.

Shift

( Menu)

( List)

Combine with

Shift

key to realize menu operation and set the corresponding parameters of power supply.

Set LIST operation parameters.

Quick Start

Shift

+ ( Trigger)

+ (

V/mΩ

)

Cause an immediate trigger.

Voltmeter/Milliohm meter

Shift Milliohm meter 0.1W range.

+ (0.1W)

Shift Milliohm meter 1W range.

+ (1W)

Shift

+ (10W) Milliohm meter 10W range.

Local key. Remote mode switch to local mode.

+ ( Local)

2.4 Rear Panel Introduction

IT6120 Series’ Rear Panel as shown below.

8-Pin Trigger and Remote sensing connectors

9-Pin COM port interface connector

Power switch (110V / 220V)

Cooling window

Voltage measurement terminals

Power socket

IT6150 Series’ Rear Panel as shown below.

Quick Start

1 9-Pin COM port interface connector

2 4-Pin Trigger and Remote sensing connectors

3 Power socket

4 Power switch (110V / 220V)

Cooling window

2.5 Power-on Selftest

A successful selftest indicates that the purchased power product meets delivery standards and is available for normal usage.

Before operation, please confirm that you have fully understood the safety instructions.

 To avoid burning out, be sure to confirm that power voltage matches with supply voltage.

 Be sure to connect the main power socket to the power outlet of protective grounding. Do not use terminal board without protective grounding. Before operation, be sure that the power supply is well grounded.

 To avoid burning out, pay attention to marks of positive and negative polarities before wiring.

Selftest steps

Normal selftest procedures:

1. Correctly connect the power cord. Press Power key to start up.

2. After selftest, VFD display the output voltage and current status as below:

0.000V 0.00000A OFF

0.000V 3.000V

Quick Start

Error Information References

The following error information may occur when an error occurs during Power On self-test:

 If the EEPROM was damaged, the VFD will display “EEPROM Error”.

 If the lastest operation data in EEPROM is lost, then VFD will display “Error

Config Data”.

 If the calibration data in EEPROM is lost, then VFD will display “Error

Calibration Data”.

 If the factory calibration data in EEPROM is lost, and then the VFD will display

“Error Factory Cal.Data”.

Exception handling

If the power supply cannot start normally, please check and take measures by reference to steps below.

1. Check whether the power cord is correctly connected and confirm whether the power supply is powered.

Correct wiring of power cord => 2

Incorrect wiring of power cord => Re-connect the power cord and check whether the exception is removed.

2. Check whether the power in On. Power key is under “ ” On status.

Yes => 3

No => Please check the Power key to start power and check whether the exception is removed.

3. Check whether the fuse of power supply is burned out.

If yes, change fuse. Detailed steps:

1. Use a screwdriver to push and turn the fuse box on the rear panel of the power supply, refer to the below picture.

Fuse specification list

Model Fuse Sepcification

(110VAC)

IT6121

IT6122

IT6123

IT6151

T2.5A 250V

T10A 250V

IT6152

IT6153

IT6154

T10A 250V

Fuse Sepcification

(220VAC)

T1.25A 250V

T5A 250V

Quick Start

2. After the fuse box is opened, you can see the fuse in it. Please replace with a fuse of the same specification..

2.6 Output Checkout

The following procedures check to ensure that the power supply develops its rated outputs and properly responds to operation from the front panel.

2.6.1 Voltage Output Checkout

The following steps verify basic voltage functions without load.

1. Turn on the power supply.

2. Enable the outputs

3. Set the voltage value

Set some different voltage values, then wait till the Meter mode to check if the

VFD displayed voltage value is the same as the set voltage value, and to check if the VFD displayed current value is nearly zero.

4. Ensure that the voltage can be adjusted from zero to the full rated value.

2.6.2 Current Output Checkout

The following steps check basic current functions with a short across the power supply’s output.

1. Turn on the power supply.

2. Disable the output

Press

On/Off key to ensure that the output is disabled.

3. Connect a short across (+) and (-) output terminals with an insulated test lead.

Use a wire size sufficient to handle the maximum current.

4. Enable the output

5. Adjust the voltage value to 1.0 volt

Adjust the voltage to 1.0 volt to ensure the power supply is in CC operation mode.

The CC announciator will turn on.

6. Adjust the current value

Set some different voltage values, then wait till the Meter mode to check if the

VFD displayed current value is the same as the set voltage value, and to check if the VFD displayed voltage value is nearly zero

Quick Start

7. Ensure that the current can be adjusted from zero to the full rated value

Turn off the power supply and remove the short wire from the output terminals

Functions and Characteristics

Chapter3 Functions and Characteristics

This chapter elaborates on the functions and characteristics of IT6100 series power supply. Contents following sections:

 Front-Panel Operation Overview

 Setting Voltage

 Setting Current

 Saving and Recalling Operation

 Menu Operation

 Output Operation

 Remote Sense

 Milliohm Meter

 Voltage Meter

3.1 Front-panel Operation Overview

The following section describes an overview of the front-panel keys before operating your power supply.

1. The power supply is shipped from the factory configured in the front-panel operation mode. At power-on, the power supply is automatically set to operate in the front-panel operation mode. When in this mode, the front panel keys can be used.

2. When the power supply is in remote operation mode, you cannot use the front-panel. A change between front-panel and remote operation modes will not result in any change in the output parameters. You can change the front-panel and remote operation modes by computer.

3. The output of the power supply can be enabled or disabled from the front panel by pressing

On/Off key.

4. The VFD display shows the present operating status of the power supply with announciators. Turn on the power supply, VFD displays two lines data. The first line shows the actual output voltage value, current value and the state of the power supply. The second line shows the voltage value tested by the voltage meter and the output value of the power supply.

3.2 Setting Voltage

The constant voltage range is from 0V to the maximum voltage value of each model. It is very easy for you to set the constant voltage output. You have 2 solutions to set the constant voltage value.

Solution1:

Step1: Power on the IT6100 series instrument.

Step2: Press the

▲

and

▼

keys to change the value.

Solution2:

Step1: Power on the IT6100 series instrument.

Functions and Characteristics

Step2: Press .

▲

and

▼

keys to change the voltage value.

Step4: Press

Solution3:

Enter to confirm.

Step1: Power on the IT6100 series instrument.

Step2: Press .

Step3: Use rotary knob to adjust the voltage value.

Setp4: Press

Enter to confirm.

3.3 Setting Current

The constant current output range is from 0A to the maximum current value of each type. It is very easy for you to set the constant current output.

Solution1:

Step1: Power on the IT6100 series instrument.

▲ and

▼ keys to change the current value.

Solution2:

Step1: Power on the IT6100 series instrument.

Step3: Use rotary knob to adjust the voltage value.

3.4 Saving and Recalling Operation

You can use

Save or

Recall

or use the SCPI order *SAV

、

*RCL to store up to

50 different output states in storage register locations(1 to 50). If the fast recall function is turned on, you can recall the saved settings by pressing numerical key

（ 0~9 ） . You can store the followings: the maximum output voltage value, the voltage setting value, the current setting value and the step value of voltage.

Saving Operation: You can use

Save

and 0~50 numeric key, press and store the parameter of IT6100 series into the register.

Enter

Recalling Operation : You can use

Recall

and 0~50 numeric key, press and recall the parameter stored before from the register.

Enter

Functions and Characteristics

3.5 Menu Operation

Menu Description

Press MENU to indicate operation mode. View the menu in VFD, and use

▲

and

▼ to scroll through the complete menu list as following. If press ENTER , you could get the selected menu function. Press page.

ESC back to the previous menu selection

MENU

Config

Config Init.

Out Recall

Off<Default>

PWR-ON Recall

Off<Default>

Key Sound Set

On<Default>

Off

Knob Lock Set

Return to the factory default setup value.

Setting Power-on state of power supply.

When users turn on the power supply; its setup value will keep the state of last time as users turned off the power supply.

Disable this function.

Setting power-on parameter of power supply

When users turn on the power supply; its setup value will keep the state of last time as users turned off the power supply.

Disable this function.

Keypad sound setting.

Enable key sound.

Disable key sound

Setup Rotary knob lock state.

Off< Default >

Remote Sense

Lock Rotary knob.

Unlock Rotary knob.

Setup voltage measurement Mode.

Off< Default >

ShortCut Recall

The electronic load will measure input voltage from the remote sense connector.

The power supply will measure input value from the front panel connector.

Quickly recall the data stored before

On Enable this function

Off<Default> Disable this function

OVP Set

Off< Default >

Setting over voltage protection

Enable this function

Disable this function

Meter Rate Set

High

Setting the speed of power supply

High speed

Low< Default >

Baudrate set

Low speed

Setting baud rate

Baudrate 4800 <

Default >

Baudrate 9600

Baudrate 19200

Baudrate 38400

Comm. Parity Communication parity bit set.

None< Default >

Functions and Characteristics

Even

Odd

Address Set

Address=

＊＊

Port Mode

Trigger< Def >

Setting communication address(range from 0to 254)

Select function of port

RI/DIF

DIGITAL I/O

Trig Source

Immediat<Def>

External

Bus

Setting trigger mode

Trigger signals from

Shift

Trigger key

Trigger signals from the TRIG connector in the rear panel.

Communication command trigger mode.

RI Mode

Off< Default >

Control the output mode

Disable this function

Latching

Live

DFI Source

System Set

Discrete Fault Indicator

Off< Default >

QUES

OPER

ESB

RQS

Question Bit

Operation Bit

Event State Bit

Require Bit

Key Lock Set Setting keypad password.

Press ENTER directly to disable the key lock function.

Password= ﹡﹡﹡﹡

Exit

Max Volt. set Setup the Maximum Voltage.

Max= ﹡﹡﹡﹡

Step Volt Set Set voltage step

Exit

List Set

Step= ﹡﹡﹡﹡

Call ListFile

Edit ListFile

Recall list operation file.

Continuous

Once

Edit list operation file.

Repeat

Step

Once

Repeat

Save Mode Set

8 X 25 Steps

4 X 50 Steps

2 X 100 Steps

Users can choose 4 kinds of memory space to save the list file.

Functions and Characteristics

Exit

1 X200 Steps

Timer time you set.

Timer State Setting POWER ON timer state

On When users choose the timer state ON, and then turn on the power supply’s output, the POWER ON TIMER will start working, and when the POWER ON TIMER is reach the setup time, the power supply’s output will turn off automatically.

Off< Default >

Timer Set Setting time of POWER ON timer.

Exit

Timer= ﹡﹡ S

Note:

Press

Shift

(Menu) to enter menu operation, then press

Esc

to exit. During any function operations, press

Esc key to exit the current operation state.

Output Recall

This function can help you set the output state when the power supply is powered on. If you select On , the power supply will keep the state of last time as it is turned off. If you select Off , this function is disabled. Default is On.

Key Sound

This instruction can switch on/off the buzzing sound when you press any key, if you select On , the buzzer will sound when any key was pressed. If you select Off , the buzzer will not sound when the keys were pressed. Default is On .

ShortCut Recall

This function can help you recall the data stored before.

Option:

1. Press press

Shift

ENTER

MENU to confirm. into menu operation, VFD displays

2. Press

▲

and

▼to select ShortCut Recall

, press ENTER to confirm.

3. Press

▲

and

▼to select

On, press

ENTER to confirm.

Config ,

4. Press

ESC two times to escape menu operation.

5. Press press

6. Press

ENTER or to confirm.

Save

, VFD displays Store 1

Functions and Characteristics number

（ range from 1 to 50

）

, press ENTER to confirm.

7. You can recall the data stored before by pressing the register number.

Setting Communication Baud Rate (>BAUDRATE)

This function can help you set communication baud rate. There are 4 kinds of baud rate, 4800HZ, 9600HZ, 19200HZ and 38400HZ. Make sure that power’s baud rate is as the same as your computer before communication. Default baud rate is 4800HZ.

Setting Communication Parity Bit (>Comm.Parity)

This function can set communication parity bit. There are three kinds of communication parity bit, None, Even and Odd. Make sure that the communication parity bit set to None during remote communication operation. Default communication parity bit is None .

Setting Address (>ADDRESS)

This instruction can set the communication address for each power supply. The address range is from 0 to 30. Before the communication, you must make sure that there is same address between the power supply and the computer. Default address is 0.

Option:

1. Press press

Shift

ENTER

MENU to confirm. into menu operation, VFD displays

2. VFD displays Address=

＊＊

9 press ENTER to confirm.

Config ,

3. Press

ESC two times to escape menu operation.

Setting Port Mode

The level of the port on the rear panel is TTL, and the port has 3 kinds of function as follows:

TRIGGER : pin1 and pin 2 can be used as the external trigger source for power supply, and can control the list operation.

RI/DFI : Inhibit Input can control the output state of power supply, Fault Output can find fault of power supply.

DIGITAL I/O : It can read and control output and input state. mode Trigger RI/DFI DIGITAL I/O

Pin

Trigger in

GND

No Use

Inhibit Input

GND

Fault Output

GND

Digital Input

GND

Digital Output

GND

Functions and Characteristics

Setting Trigger Operation (Shift+Trigger)

The power supply has 3 kinds of trigger mode. You must choose trigger source before trigger operating.

Shift

Trigger Key: If this function is enabled, press will start trigger operation once.

Trigger

, the power supply

External trigger signal (TTL): There is a trigger input port on the rear panel.

When this function is enabled, please give this trigger input port a pulse about 5 mS, and the power supply will start trigger operation once.

Bus: When this function is enabled, and the power supply receives order *TRG or

TRIgger , the power supply will start trigger operation once.

Setting Remote Inhibit

RI input has 3 modes: LATCHING , L IVE , OFF

LATCHING : When the level of RI port changes from high to low, the output of power supply is off.

LIVE : The output state of power supply changes along with the level of RI port. If the level of RI is high, the output is on; and the level of RI is low, the output of power supply is off.

OFF : The level state of RI do not affect the output state of power supply.

Setting Discrete Fault Indicator

DFI source contains QUES 、 OPER 、 ESB 、 RQS 、 OFF.

QUES: The output level of DFI changes along with the state of QUES bit. When

QUES bit is 1, DFI outputs low level. When QUES bit is 0, DFI outputs high level.

OPER: The output level of DFI changes along with the state of OPER bit.

ESB: The output level of DFI changes along with the state of ESB bit.

RQS: The output level of DFI changes along with the state of RQS bit.

OFF: The output level of DFI remains high.

Setting KEY LOCK

This instruction can set a password (1 through 4 digits) to lock the function keys operation. After setting the password, all the function keys on the front panel will be locked except the OUT on/off key. You must enter the correct password to unlock them, then you can continue to do the function key operation. If you don’t want to lock the function keys, please don’t press any number key when you enter the >KEY LOCK instruction, just press ENTER key to unlock it.

Note: When shipped from factory, there is no password and function keys are unlocked. The start bit of your desired password shouldn’t be 0.

Setting Maximum Output Voltage (>Max Volt. Set)

The range of maximum voltage value is from 0V to full rated output voltage, the steps are as follows:

1. Press

Shift

(Menu) to enter menu function. VFD displays ＞ Config ,

Functions and Characteristics

List Set

Press and to select ＞ System Set , then press ENTER to confirm.

2. Press and to select ＞ Max Volt. Set , then press ENTER to confirm.

3. VFD displays Max=73.000V

, select press ENTER to confirm.

to set maximum voltage value,

4. Press

Esc

twice time to exit menu operation.

Default value of Max Volt. Set is full rated output voltage.

Before you edit the list file, please set trigger source as “immediate” in the menu.

Action:

1. Press

Shift

Menu into the menu.

2. Press up or down key to select “Config” , press

Enter to confirm.

3. Press up or down key to select “Trig Source” , press

4. Press up or down key to select “Immediat” , press

Enter

Enter to confirm. to confirm.

You can make the input change order by editing every step value of list operation.

The parameter of list operation includes the name of list file, input step (no more than 400 steps), step time (the minimum is 1mS) and every step value. The list file can be stored in ROM whose capacity is 4K, and it can be fast recalled. This store area is divided into A, B, C and D four areas. In area A, there is only 1 group whose capacity is 4Kb. In area B, there are 2 groups and each group’s capacity is 2Kb. In area C, there 4 groups and each group’s capacity is 1Kb. In area D, there are 8 groups and each group’s capacity is 512b.

If the list operation mode is CONTINIOUS, when you receiving a trigger signal, the power supply will start list operation until the list operation is over or a trigger is received again.

Operation:

1. Press

Shift

Menu into menu operation.

2. VFD displays Config , press

▼to select List Set

, press

Enter to confirm.

3. VFD displays confirm.

Call ListFile , press

▼to select Edit ListFile

, press

Enter to

4. VFD displays Continuous , press

Enter to confirm.

5. VFD displays Once , press

▼ to select Repeat , press select circle operation.

Enter to confirm,

6. VFD displays Second , press

▼ to select MilliSecond , press

Enter to confirm, select time unit.

7. VFD displays List Count= _ , press numeric key or move the rotary knob, set circle times ( in this example, count is 2),press

Enter to confirm.

8. VFD displays 1th= ＊ .

＊＊＊＊ V , press numeric key or move the rotary knob, set the maximum voltage, press

Enter to confirm.

9. VFD displays 1th= ＊ .

＊＊＊＊ A , press numeric key or move the rotary knob,

Functions and Characteristics set the maximum current, press

Enter to confirm.

10. VFD displays 1th= ＊ mS , press numeric key or move the rotary knob, set delay time, press

Enter to confirm.

11. VFD displays 2th= ＊ .

＊＊＊＊ V , press numeric key or move the rotary knob, set the maximum voltage, press

Enter to confirm.

12. VFD displays 2th= ＊ .

＊＊＊＊ A , press numeric key or move the rotary knob, set the maximum current, press

Enter to confirm.

13. VFD displays 2th= ＊ mS , press numeric key or move the rotary knob, set delay time, press

Enter to confirm.

14. VFD display Store File_ , press numeric key or move the rotary knob, set the register number （ 1 to 8 ） , press

Enter to confirm.

15. Press

Esc

two times to escape menu operation.

16. Press

Shift

+ the list file. Press

List

Shift to set the list file, then press

List

to stop.

Shift

Trigger to run

If you have edited several list files, you can call the list file that you need by “Call

ListFile” function in the menu. Press then press

Shift

List

Esc

two times to exit menu operation. And to set it, press

Shift

Trigger

to run the file that you call. Press

Shift

List to stop running.

Trigger Trigger

When the list operation mode is STEP , the power supply will go to the next step when receive a trigger signal.

Functions and Characteristics

Trigger

Trigger Trigger

Trigger

Trigger Trigger

Setting Output Timer Function (>Out On Timer)

The loading time of IT6100 power supply can be set. When the timer state is ON, the power supply output opens and starts with load. When the loading time reaches the set time, the output will be turned off automatically. When the timer state is OFF, the timer function will be disabled. Default value is OFF.

The detailed operations are as follows:

Set timer state:

1. Press press

Shift

and

(Menu) to enter menu function, VFD displays ＞ Config , to select ＞ Out On Timer , then press

Enter to confirm.

2. Press and to select ＞ Timer State , then press

Enter to confirm.

3. VFD displays Off<Default> (or On), press and to select On or Off, then press

Enter to confirm.

4. Press

Esc

twice time to exit the operation.

Set the time of output timer:

1. Press

Shift

(Menu) to enter menu function, VFD displays ＞ Config , press and to select ＞ Out On Timer , then press

2. Press and to select ＞ Timer Set , then press

Enter

Enter to confirm. to confirm.

3. VFD displays confirm.

Timer=20S , press

to set time, then press

Enter to

4. Press

Esc

twice time to exit the operation.

Digital I/O

When the digital port of the power supply mode is DIGITALI/O and power supply is under remote sense, you could send SCPI order (DIGital:INPut[:STATe?] and

DIGital:OUTPut[:STATe?]) to read and set the state of output and input port.

3.6 Over Voltage Protection Function

When the output voltage exceeds the constant voltage by 5%, or the connection is unsuccessful under remote sense mode, the power supply will protect itself automatically. The power supply must be turned on again. When the power is in overvoltage protection, the output is off, and buzzer is mooing. VFD displays Over

Voltage.

Functions and Characteristics

Over Voltage

When the power supply with other power supply is in parallel connection, please disable this function.

3.6 Output Operation

If you control the power supply by front panel, you can press

On/Off

and switch the state of output. If power supply is under remote sense, you can send SCPI order (OUTPut ON|OFF) to change the state of output.

3.7 Remote Sense

The wire connected the power supply and electronic load will produce voltage difference when the current of the power supply is so big. In order to make the measurement accuracy much accurate, there are 4 pin trigger and remote sensing connectors on the rear panel and you can use it to measure the output voltage of the tested instrument. You must set remote sense mode before you start remote test function.

IT6120 8 pin connector in rear panel

+ +S

S INH GND FLT GND

+,: Output port, they are as the same as the output in front panel

+S,-S : Sense port

INH : this port hat multiple function

When “Port Mode” in the menu is set with “Trigger”, INH is trigger port.

When “Port Mode” in the menu is set with “RI/DIF”, INH can set the output status on/off. Here INH port has 3 working mode to choose.

LATCHING : When the level of INH port changes from high to low, the output of power supply is off.

LIVE : The output state of power supply changes along with the level of INH port. If the level of INH is 1, the output is on; and the level of INH is 0, the output of power supply is off.

OFF : The level state of INH do not affect the output state of power supply.

When “Port Mode” in the menu is set with “DIGITAL I/O”, INH port becomes the digital input port to read input status by communication order.

FLT: This port hat multiple function

When “Port Mode” in the menu is set with “Trigger”, FLT is an invalid port.

When “Port Mode” in the menu is set with “RI/DIF”, FLT port can find fault of power supply.

FLT source contains QUES, OPER, ESB, RQS, OFF .

QUES : The output level of FLT changes along with the state of QUES bit. When

Functions and Characteristics

QUES bit is 1, FLT outputs low level. When QUES bit is 0, FLT outputs high level.

OPER : The output level of FLT changes along with the state of OPER bit.

ESB : The output level of FLT changes along with the state of ESB bit.

RQS : The output level of FLT changes along with the state of RQS bit.

OFF : The output level of FLT remains high.

When “Port Mode” in menu is set with “DIGITAL I/O”, FLT port becomes output port to control the output status by communication order.

IT6150 4 pin connector in rear panel

GND TRIN

GND, TRIN : Trigger port

-, + : Remote sense port

3.8 Milliohm Meter

SOURCE METER can measure resistant value accurately and the biggest resistance it can measure is 1k

Ω.

In order to protect the resistor, please select the power range of the resistor before you measure it. Wiring diagram as follows:

There are 3 ranges to be chosen: 0.1W

、 1W 、 10W.

The accuracy of the measurement is <1%, the higher range you select, the more accurate result you can get.

Option:

1. Press

Shift

+V/m

Ω

（ if VFD displays ＊＊．＊＊ V , press

Shift

+V/m

Ω

） m : ＊＊ , you can measure resistance value.

2. Press

Shift

+ 0.1W /1W /10W , you can set different range of milliohm meter.

3.9 Voltage Meter

Wiring diagram as follows:

Functions and Characteristics

Press press

Shift

+V/m

Ω

（ if VFD displays Range: ＊＊ ,please

Ω

） , VFD displays ＊＊．＊＊ V , you can begin to test the voltage value.

The accuracy is <0.1%.

Technical Specification

Chapter4 Technical Specification

4.1 Specifications

IT6120 Series DC Power Supply

Parameter

Output Ratings

( 0 °C~40 °C)

Load Regulation

(

％ of output+offset)

Line Regulation

(

％ of output+offset)

Setup resolution

Readback resolution

Setup accuracy, 12months,

(25 °C ± 5 °C)

(

％ of output+offset)

Readback accuracy

12months,

(25 °C ± 5 °C)

(

％ of output+offset)

Ripple

(20Hz ~20MHz)

Temperature coefficient,

(0 °C~40 °C)

(

％ of output+offset)

Readback temperature, coefficient,

(

％ of output+offset)

Dimension(mm)

Weight

IT6121 IT6122

Voltage 0 ~20V

Current 0~5A

LVP

Voltage

Current

Voltage

0 ~32V

0~3A

0 ~21V 0 ~33V

≤0.01

%+2mV

≤0.05

%+1mA

≤0.01

%+1mV

Current

≤0.05

%+0.1mA

Voltage 0.5mV

Current 0.1mA

Voltage

Current 0.05mA

0.1mV

0.01mA

Voltage

≤0.03%+3mV

Current

Voltage

≤0.05

%+2mA

≤0.02

%+3mV

IT6123

0~72V

0~1.2A

0 ~73V

≤0.01

%+2mV

≤0.05

%+0.3mA

≤0.01

%+2mV

≤0.05

%+0.05m

2mV

0.02mA

0.5mV

0.01mA

≤0.03

%+6mV

≤0.05

%+1mA

≤0.02

%+5mV

Current

Voltage

≤0.05

%+2mA

Voltage

≤

3mVp-p

≤

4mVp-p

Current

≤3mArms ≤

3mArms

≤0.02%+3mV

Current

≤0.05

%+2mA

Voltage

Current

≤0.02%+3mV

≤0.05

%+2mA

≤

0.05%+1mA

≤

5mVp-p

≤3mArms

≤0.02%+5mV

≤0.05

%+0.5mA

≤0.02%+5mV

%+0.5mA

214.5mmW×88.2mmH×354.6mmD

8 kg

IT6150 Series High Resolution Power Supply

Parameter

Output Ratings

( 0 °C~40 °C)

Voltage

Current

IT6151

0~5.2V

0~60A

IT6152

0~20V

0~27A

The model of remote sense±(%ofoutput

LVP 0~5.5V

Voltage <0.05%+30mV

Current <0.1%+10mA

IT6153

0~30V

0~18A

0~21V 0~31V

<0.05%+20mV<0.05%+15mV

<0.1%+5mA

IT6154

0~60V

0~9A

0~61V

<0.05%+10mV

<0.1%+2mA

Technical Specification

+offset)

Line Regulation

±(

％ of output+offset)

Voltage

Current

<0.02%+1mV

<0.1%+1mA

Setup resolution

Readback resolution

Setup accuracy,12 months±(%of output

+offset)

Readback accuracy

±(%of output+offset)

Voltage

Current

Voltage

Current

Voltage

Current

Voltage

Current

0.1mV

1mA

0.1mV

1mA

0.02%+2mV

<0.1%+30mA

0.02%+1.5mV

<0.05%+15mA

Ripple

(20Hz~20MHz)

Temperature

Coefficient

( 0 °C~40 °C)

±(%of output+offset)

Voltage

Current

Voltage

Current

≤

4mVp-p

<15mArms

<0.02%+2mV

<0.1%+30mA

Readback temperature coefficient±(%of output+offset)

Voltage

Current

Dimension(mm)

<0.02%+2mV

<0.1%+30mA

Weight

<0.02%+1mV

<0.01%+1mA

0.5mV

1mA

0.1mV

0.1mA

<0.02%+6mV

<0.1%+15mA

0.02%+3mV

<0.05%+10mA

≤

4mVp-p

<5mArms

<0.02%+5mV

<0.1%+15mA

<0.02%+5mV

≤0.05%+10mA

<0.02%+2mV

<0.01%+0.1mA

0.5mV

1mA

0.5mV

0.1mA

≤0.02%+12mV

<0.05%+10mA

0.02%+6mV

<0.05%+5mA

≤

5mVp-p

<3mArms

<0.02%+10mV

<0.05%+5mA

<0.02%+10mV

≤0.05%+5mA

429mmW×88.2mmH×458.9mmD

29 kg

* The above specifications may be subject to change without prior notice.

4.2 Supplemental Characteristics

State Storage Memory : Fifty (50) user-configurable stored states

Recommended Calibration Interval: Once a year

AC Input Ratings (selectable via switch on the rear panel):

Option Opt.01: 220VAC ± 10%, 47 to 63 Hz

Option Opt.02: 110 VAC ± 10%, 47 to 63 H

Maximum power:

IT6120 Series

300VA

Cooling: Fan cooled

IT6150 Series

1000VA

Operating Temperature : 0 to 40 °C

Storage Temperature : -20 to 70 °C

Technical Specification

Environmental Conditions

Designed for indoor use in an installation category II, pollution degree 2 environment. Designed to operate at maximum relative humidity of 95% and at altitudes of up to 2000 meters.

Remote Operation Mode

Chapter5 Remote Operation Mode

The DB9 interface connector on the rear panel of the power supply can be transferred to RS-232 interface, the following information will tell you how to use the computer to control the output of the power supply.

5.1 Communication Cable

IT-E131 RS232 Communication Cable

The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use the communication cable (IT-E131) to connect the DB9 interface connector of the power supply and the RS-232 interface connector of computer for the communication.

Computer side TTL -E131) PS side

IT-E131 communication cable

Power

IT-E132 USB Communication Cable

The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use the communication cable (IT-E132) to connect the DB9 interface connector of the power supply and the USB interface connector of computer for the communication.

Power

IT-E135 GPIB Communication Cable

The DB9 interface connector on the rear panel of power supply is TTL voltage level; you can use the GPIB communication cable (IT-E135) to connect the DB9 interface

Remote Operation Mode connector of the power supply, and then connect the GPIB interface of the IT-E135 and computer with GPIB/IEEE 488 line for the communication.

IT-E135 outer communication adapter

COM interface of

Power supply GPIB line

IT-E135 ISOLATED

Serial /IEEE 488 Controller

Appendix

Specifications of Red and Black Test Lines

ITECH provides you with optional red and black test lines, which individual sales and you can select for test. For specifications of ITECH test lines and maximum current values, refer to the table below.

Model

IT-E301/10A

IT-E301/30A

IT-E301/60A

IT-E301/120A

IT-E301/240A

IT-E301/360A

Specification Cross section Length

10A

30A

60A

120A

240A

360A

6mm

20mm

50mm

70mm

95mm

1.2m

1.5m

For maximum current of AWG copper wire, refer to table blow.

AWG

The

Maximum current value( A)

12 14

25 20

20 22

7 5

24 26 28

3.5 2.5 1.7

Note: AWG ( American Wire Gage), it means X wire ( marked on the wire). The table above lists current capacity of single wire at working temperature of 30°C.

For reference only.