ITech IT6723G, IT6723H, IT6724, IT6723C, IT6724B User Manual

Programmable HV Power

Supply

Series IT6700 User’s Manual

Model: IT6722/IT6722A/IT6723/IT6723B/

IT6723C/IT6723G/IT6723H/IT6724/
IT6724B/IT6724C/IT6724G/IT6724H/
IT6726B/IT6726C/IT6726G/IT6726H/
IT6726V

Version: V2.1

Statement

© Itech Electronics, Co., Ltd. 2014
No part of this manual may be
reproduced in any form or by any means
(including electronic stor age and
retrieval or translation into a foreig n
language) without prior permission and
written consent from Itech Electronics,
Co., Ltd. as governed by international
copyright laws.

Manual Article No.

IT6700-402179

Revision

Revision 2, published on
April 14, 2015
Itech Electronics, Co., Ltd.

Trademark Statement

Pentium is a registered trademark of
Intel Corporation in the United States.

Microsoft, Visual Studio, Windows and
MS Windows are trademarks of
Microsoft Corporation in the United
States and/or other countries/regions.

Guarantee

Materials in the document are provided
talis qualis and may be changed in
future revisions without prior notice. In
addition, within the maximum allowable
extent of laws, ITECH is not committed
to any explicit or implied guarantee for
this manual and all information therein,
including but not limited to the implied
guarantee on marketability and
availability for some special purposes.
ITECH shall not be responsible for any
error or incidental or indirect losses
caused by the provision, use or
application of this documents and
information therein. If some guarantee
clauses in other written agreements
between ITECH and users are not
consistent with clauses herein, those
clauses in other written agreements
shall prevail.

Technology license

Hardware and/or software in this
document cannot be provided without a
license and can only be used or copied
according to the license.

Restricted permission statement

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 follows FAR 12.211 (technical
data), 12.212 (computer software).
DFARS 252.227-7015 (technical
data--commercial products) for national
defense and DFARS 227.7202-3
(permissions for commercial computer
software or computer software
documents) while providing the
customized business license s of
software and technical data.

Safety Statement

“Caution” signs indicate da nger. It is
required to pay attention to the contents
of these signs during implementation of
operations.
The damage to the product or loss of
important data may be caused in case of
improper operation steps or failure to
follow operation steps. Do not continue
to implement any improper operation
indicated in “Caution” signs when the
specified conditions are not fully
understood or these conditions are not
satisfied.

“Warning” indicates danger. I t is requi r e d
to pay attention to the contents of these
signs during implementat ion of
operation steps. Personal casualties
may be caused in case of improper
operation steps or failure to follow these
operation steps. Do not continue to
implement any improper operation
indicated in “Warning” signs when the
specified conditions are not fully
understood or these conditions are not
satisfied.

NOTE

“Instructions” ind icates oper at ion
instructions. It is required to refer to the
contents of these signs during operatio n
steps. These signs are used for
providing tips or supplementar y
information for operators.

Series IT6700 User’s Manual

Copyright © It e ch Ele ct ronics Co., Ltd. i

Certification and Quality Assurance

IT6700 series power supply completely reaches n ominal technical indicators in
the manual .

Warranty service

ITECH Compa ny will provi de one-year warranty services for the product
materials and manufacturing (excluding the following limitations).

 When warrant y service or repair is neede d, please send the product to t he

service unit specified by ITECH Company.

 When the product is sent to ITECH Company for warranty service, the

customer mu st pay the one-way freight to the maintenance department of
ITECH, and I TECH will be responsible for return freight.

 If the product is sent to ITECH for war ranty service from other countries,

the customer will be responsible f or all the freight , duties and other taxes.

Limitation of Warranty

 Warranty servi ce does not apply to the damage cau sed in the following

circumstances:

 Damage resulting from cu stomer-wired circuits or customer-sup plied parts

or accessories;

 Product w hich has been modified or repaired by the customer;
 Damage caused by the circuit installed by the cust omer or damage caused

by operation of the product in non-specified environ m ent;

 The product m odel or serial number is al tered, deleted, removed or made

illegi ble by customer;

 Damage caused by accidents, including but not limited to lightning, water,

fire, abuse or negligence.

Safety signs

Direct current

ON (power)

Alternating current

OFF (power)

Both direct and alternating
current

Power-on state

Protective earth (ground)

terminal

Power-off state

Earth (ground) terminal

Reference terminal

Caution

Positive terminal

Warning (refer to this manual
for specific Warning or
Caution information)

Negati ve terminal
A chassis termi nal

-

-

Series IT6700 User’s Manual

Copyright © It e ch Ele ct ronics Co., Ltd. ii

Safety Precautions

General safet y pr ecaut i ons bel ow must be f ol l owed i n each p ha se of i nstr u ment
operation. In case of failure to follow these precautions or speci fic warnings in
other parts of the manual , violation against the safet y standards related to the
design, man ufacture and purpose of the i nstrument will occur. If the user does
not foll ow these precautions, ITECH will bear no respo nsibility arising
therefrom.

 The power supply is provided with a three-core power cord during delivery

and should be co nnect e d to a t hr ee-cor e junct i on box . Bef or e operat i on, be
sure that the power supply is well grounded.

 Use electric wires of appropriate load. All loading wi res should be capable

of bearing m aximum short-circuit of electronic load without overheating.

 Ensure the voltage fl uctuation of mai ns supply is less than 10% of the

working voltage range in order to reduc e risks of fire and electric shock.

 To prevent burnout , please pay special attention to positive and negative

polarities of power supply during connection!

 Do not use damaged equip me nt. Please check t he housing bef or e usi ng

the equipme nt. Check whether the instr um ent is subject to cracking or is
lack of plastic. Do not operate the inst rument in the environment with
explosive gas, steam or dust.

 Observe all tags on the equipment befor e connection.
 Do not install alternative parts on the instrument or perform any

unauthorized modification.

 Do not use the e quipment when the removable cover is dismantled or

loose.

 Please use t he power adapter suppli ed by the manufacturer to avoid

accidental injury.

 Do not use the e quipment on the life support system or other equipment

with safety requirement s.

 If the equi pme nt is not used in the manner specified by the manufacturer,

its protection may be damaged.

 Always use dry cloth to clean the equipment housing. Do not clean the

inside of t he instrument.

 Do not block the air vent of the equipment .

Environmental conditions

The IT6700 series power supply can only be used indoors or in low
condensation areas. The following table shows general envi ronmental
requirements for thi s instrument.

Environ me ntal conditions

Requirement

Operating temperature

0°C - 40°C
0°C - 40°C

Operating humidity

20% - 80% (non condensing)

Storage tem perature

-20°C - 70 °C

Altitude

Operating up to 2,000 meters

Install ation category

II

Polluti on degree

Polluti on degree 2

Series IT6700 User’s Manual

Copyright © It e ch Ele ct ronics Co., Ltd. iii

NOTE

In order to ensure the accuracy of measurement, it is recommended to operate the
instrument half an hour after start-up.

Regulation tag

The CE tag shows that the product complies

with the provisions of all relevant European
laws (if the year is shown, it indicates that the
year when the design is approved).

This instrument complies with the WEEE
directive (2002/96/EC) tag requirements.

This attached product tag shows that the

electrical/electronic product cannot be

discarded in household waste.

This symbol indicates that no danger will

happen or toxic substances will not leak or

cause damage in normal use within the
specified period. The service life of the
product is 10 years. The product can be
used safely within the environmental
protection period; otherwise, the product
should be put into the recycling system.

Waste electrical and electronic equipment (WEEE) directive

Waste electrical and electronic equipment (WEEE) directiv e,

2002/96/EC

The product complies with tag requirements of the WEEE

directive ( 2002/96/EC). This tag i ndicates that the electronic

equipment cannot be disposed of as or di nar y househ ol d w ast e.

Product Category

According to the equipment classification in Annex I of the WEEE
directive, this instrument belongs to the “Monitori ng” product.
If you want to return the unnecessary instrument, please contact

the nearest sales office of ITECH.

Series IT6700 User’s Manual

Copyright © It e ch Ele ct ronics Co., Ltd. iv

Compliance Information

Complies with the essential requirements of the following applicable European
Directives, and carries the CE marki ng accordingly:

 Electromagnetic Compat ibility (EMC) Directive 2014/30/EU
 Low-Voltage Directive (Safet y) 2014/35/EU

Conforms with the follow ing product sta ndards:

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

Series IT6700 User’s Manual

Copyri ght © It e ch Ele ct ronics Co., Ltd. v

Content

Certification and Quality Assurance ...................................................................................................................... 1

Warranty service ................................................................................................................................................... 1

Limitation of Warranty .......................................................................................................................................... 1

Safety signs ........................................................................................................................................................... 1

Safety Precautions ................................................................................................................................................ 2

Envir onmental co nditions ..................................................................................................................................... 2

Regulation tag ....................................................................................................................................................... 3

Waste electrical and electronic equipment (WEEE) directive ................................................................................ 3

Compliance Information ....................................................................................................................................... 4

Chapter I Acceptance and Installation ......................................................................................................... 1

1.1 Confirm package contents ............................................................................................................................... 1

1.2 Installation Position ......................................................................................................................................... 2

1.3 Installation of support ..................................................................................................................................... 7

1.4 Installation of power cord ............................................................................................................................... 8

Chapter II Quick Start ................................................................................................................................. 10

2.1 Brief Introduction .......................................................................................................................................... 10

2.2 Introduction of front panel ............................................................................................................................ 11

2.3 Key introduction ............................................................................................................................................ 12

2.4 VFD Indicator Description .............................................................................................................................. 13

2.5 Introduction of rear panel ............................................................................................................................. 13

2.6 Power-on selftest .......................................................................................................................................... 15

2.7 Output Checkout ........................................................................................................................................... 17

Chapter III Function and Features ................................................................................................................ 19

3.1 Switching of local/remote operation modes .................................................................................................. 19

3.2 Voltage Setup ................................................................................................................................................ 19

3.3 Current Setup ................................................................................................................................................ 19

3.4 Output On/Off Operation .............................................................................................................................. 20

3.5 Setup value/Actual value switching ............................................................................................................... 20

3.6 Voltage/Current/Power adjustment .............................................................................................................. 20

3.7 Save/recall Operation .................................................................................................................................... 20

3.8 Trigger operation ........................................................................................................................................... 21

3.9 Menu operation ............................................................................................................................................ 21

3.10 OVP function ............................................................................................................................................... 29

3.11 Key Lock function ........................................................................................................................................ 29

3.12 Remote sense function ................................................................................................................................ 29

Chapter IV Technical Specification ............................................................................................................... 31

4.1 Main technical parameters ............................................................................................................................ 31

4.2 Supplementary parameters ........................................................................................................................... 43

Chapter V Remote Operation Mode ........................................................................................................... 44

5.1 RS232 interface ............................................................................................................................................. 44

5.2 USB interface ................................................................................................................................................ 45

5.3 RS485 interface ............................................................................................................................................. 45

5.4 GPIB interface ............................................................................................................................................... 47

Appendix ................................................................................................................................................................ 48

Specifications of Red and Black Test Lines ........................................................................................................... 48

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 1

Chapter I Accept ance and Installation

Power supply is a high level safety equipment, there is a protected ground
terminal.Before Installation or operation, please read the safety signs and
instructions in this ma nual.

1.1 Confirm package contents

Open the package and check the articl es within packa ge box before o peration.
In case of any non-conformity, missing or appearance w earing, please contact
ITECH immediately.

The package box should comprise:

Device name

Quantity

Model

Remarks

Power supply

x1 IT6700 series

IT6700 series include:

IT6722/IT6722A/IT6723/
IT6723B/IT6723C/IT6723G/
IT6723H/IT6724/IT6724B/
IT6724C/IT6724G/IT6724H/
IT6726B/IT6726C/IT6726G/

IT6726H/IT6726V

Power Cord

x1

IT-E171/IT-E172/
IT-E173/IT-E174

The User may select different

power cords based on local
outlet specification. For
detailed specifications, refer to

1.4 Instal lation of power cord.

CD

x1

-

Comprising user manual and

documents r elated to
programmi ng and grammatic

guidelines

Factory

alignment

report

x1

-

Test report before delivery
Certificate of
Conformity

x1

-

­USB Cable

x1

-

-

NOTE

After confirming that package contents are consistent and correct, please appropriately
keep package box and related contents. The package requirements should be met when
the instrument is returned to factory for repair.

Optional accessories f or IT6700 Series power supply avail able for independent
sales: IT-E151 support

*IT6726 Series have no o ptional acces sories.

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 2

1.2 Installation Position

The instrument should be installed at well-ventilated and rational-sized space.
Please sel ect appr opr i at e spac e f or installation based on t he p ower su ppl y size.

Model IT6722/IT6722A

Overall dimensions
Width: 255 mm
Height: 108.7 mm
Depth: 376.37 mm

Detailed dimensional drawings

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 3

Model IT6723G/IT6723H/IT6724H

Overall dimensions
Width: 255 mm
Height: 108.7 mm
Depth: 466.5 mm

Detailed dimensional drawings

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 4

Model IT6723/IT6723B/IT6723C/

IT6724/IT6724B/IT6724C/IT6724G

Overall dimensions
Width: 255 mm
Height: 108.7 mm
Depth: 520 mm

Detailed dimensional drawings

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 5

Model IT6726B/IT6726G/IT6726H/IT6726V

Overall dimensions
Width: 482.5 mm
Height: 98.7 mm
Depth: 549 mm

Detailed dimensional drawings

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 6

Model IT6726C

Overall dimensions
Width: 482.5 mm
Height: 98.55 mm
Depth: 600.55 mm

Detailed dimensional drawings

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 7

1.3 Installation of support

IT6700 Series power can be installed on standard 19-inch support . IT-E151 is
an accessor y prepared for user.

IT6726H/IT6726G/IT6726V/IT6726B/IT6726C has no accessory, each of them
can be installed directly on the 19-i nch support through screw holes of the left
ear.

A st andard 19-inch support can carry two sets of electronic loads. Detailed
installation steps:

Installation steps:

1. Remove the power handle. Pull the handle to both side, adjust to the

vertical position of the body, and then pull the two sides with bot h hands.

2. Uncover the light-green tag on original installation of handle at both sides

of the inst rument to expose the support installation hole.

3. Detailed operation methods to install one set of load on the instrument

support: f ir stl y, fix a plastic sup por t on or i gi nal i nstal l ati on posi ti on of handl e
with screw; fix t he accessor y 1 (suppor t) ; and fi nall y, install the accessor y 2
(board baffle) on the position as shown in icon below.

4. Detailed operation methods to install two sets of loads on the instrument

support: firstly, fix two plastic supports on original installation positions of
handles with screws; and fix the accessory 1 (support).

Installation drawing:

Fig. 1.1 Front View for Installing One Instrument on Support

Fig. 1.2 Front View for Installing Two Instrument s on Support

Accessory 1

Accessory 2

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 8

1.4 Installation of power cord

Connect power cord of standard acc essories and ensure that the power supply
is under normal power supply.

AC power input level

Worki ng volt age for IT6723/IT6723B/IT6723C/IT6723G/IT6723H is 1 10V and
220V; Working voltage for IT6722/IT6722A/IT6724/IT6724B/IT6724C/

IT6724H/IT6726H/IT6724G/IT6726G/IT6726V/IT6726B/IT6726C is 220V, so
please pay attention to the working input voltage.

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

 IT6722/IT6722A/IT6723/IT6723B/IT6723C/IT6723G/IT6723H/IT6724/

IT6724C/IT6724G/IT6724H 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 f ails to
meet local voltage requi rements, please contact di stributor or factory for
change.

China

IT-171

America,

Canada,Japan

IT-E172

Europe

IT-E173

Britain

IT-E174

 IT6726H/IT6726G/IT6726V/IT6726B/IT6726C provides the stand ard p ow er

cords as below.

The power cords supplied with t his product is certified for safety. In case the
supplied lines assembly needs to be re placed, or an extension lines must be
added, be sure that it can meet the requi red power ratings of this product. A ny
misuse voids the warranty of this product.

Connecting AC Input

 IT6722/IT6722A/IT6723/IT6723B/IT6723C/IT6723G/IT6723H/IT6724/

IT6724C/IT6724G/IT6724H Connect standard power cord to the power
supply input terminal .

 IT6726H/IT6726G/IT6726V/IT6726B/IT6726C AC input connector as

E

N L

E

L N

E

N L

E

L N

Acceptance and Installation

Copyri ght © It e ch Ele ct ronics Co., Ltd. 9

follows.

In the above illustration, one end of the AC power cord is connected to the
AC input terminal in the rear panel of t he pow er supply. Connect the wire,
zero line and ground to the corresponding terminal of the device. Before
inserti ng, please loose the screw, lock the screw when it is inserted.

Connect the three terminals red to line (L), black to neutral (N), and yellow
to ground (G) on the other end of t he power cord to your AC distributi on
panel.

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 10

Chapter II Quick Start

This chapter introduces the front panel, the rear panel, key f unctions and VFD
display function of the power supply, make sure that you can quickly know the
appearance, instruction and the key f unction before you operate t he power
supply , Help you make better use of this series of power supply.

2.1 Brief Introduction

IT6700 series power supplies are hi gh perfor mance si ngle-output
programmable DC power su pplied with communication interf ace. This series of
programmable DC power su pply can output the maxi mu m voltage or curr ent
with a fixed power for customers.IT6700 series power co mes w ith a standard
communication interface RS232/USB/GPIB/RS485, both desktop and
system-based features, can be designed and tested according to your needs
and provide m ulti-purpose solutions.

Convenient bench-top features:

 High visibility vacuum fluorescent display (VFD)
 Output is switch control
 High accuracy and high resolution
 Intelligent fan control, energy cons ervation, noise reduction
 Standard co m m unication interface RS232/USB/GPIB
 Output voltage and current values accor dance wit h procedure
 Can use the knob to adjust the voltage an d current
 Can adjust the knob stepping using the cursor

Model

Voltage

Current

Power

IT6722

80V

20A

400W

IT6722A

80V

20A

400W

IT6723

80V

40A

850W

IT6723B

150V

20A

850W

IT6723C

32V

110A

850W

IT6723G

600V

5A

850W

IT6723H

300V

10A

850W

IT6724

80V

40A

1500W

IT6724B

150V

20A

1500W

IT6724C

32V

110A

1500W

IT6724G

600V

5A

1500W

IT6724H

300V

10A

1500W

IT6726B

160V

40A

3000W

IT6726C

32V

220A

3000W

IT6726G

600V

10A

3000W

IT6726H

300V

20A

3000W

IT6726V

1200V

5A

3000W

*IT6722A has not standard GPIB com mu nication interface.
*IT6726C has standard RS485 com mu nication interface.

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 11

2.2 Introduction of front panel

 Front panel of IT6722/IT6722A/IT6723G/IT6723H/IT6724H

1. VFD screen

2. Adjusting knob

3. Compound key, the local switch key and power switch

4. Number keys and ESC

5. Function keys

6. UP,DOWN, LEFT and RIGHT key, to move cursor

7. Output terminal s

 Front panel of

IT6723/IT6723B/IT6723C/IT6724/IT6724B/IT6724C/IT6724G

1. VFD screen

2. Adjusting knob

3. Compound key, the local switch key and power switch

4. Number keys and ESC

5. Function keys

6. UP,DOWN, LEFT and RIGHT key, to move cursor

7. Protective cover

8. Output terminal s

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 12

 Front panel of IT6726B/IT6726C/IT6726H/IT6726G/IT6726V

1. Power switch

2. VFD screen

3. Compound key and the local swi tch key

4. Number keys and ESC

5. Function keys

6. UP,DOWN, LEFT and RIGHT key, to move cursor

7. Adjusting knob

2.3 Key introduction

Key description, see the table below:

Keys

Name and the fu nction

(Shift)

Compound key， co-work with OVP、 Menu、 Save、
Trigger、Lock

(Local)

Local switch key, switch from remote mode to local
operation mode

(Power)

Power on key

0-9

Numeric keys

/OVP

Voltage set key, set the output voltage/over voltage
protecti on point for the power supply

/Menu

Current set key, set the o utput current /menu fun ction key,
to set the relevant Paramet ers for the power supply

/Save

Callback key to call up a set value of system parameters
already stored / storage key, to save system parameter
settings

Meter key, to switch from value set panel and the actual
output value

/Trigger

Enter key, to confirm the number entered and operation /
trigger but ton, which is used to trigger the List test.

/Lock

Output on (off) keys, control power output state / keypad
lock function keys, used to lock the panel buttons

Left and right movement keys, used to set the value, to
adjust the cursor to the sp ecified location

V-setV-set

I-setI-set

Recall

MeterMeter

EnterEnter

On/Off

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 13

Up and down keys, used to select a item in the menu or
increase (decrease) the o ut put voltage or current values

Cancel /return keys

2.4 VFD Indicator Description

VFD indi cator function description as follow:

Char Function description Char Function description

OFF

Output is off

Timer

Output on timer function is ON

CV

The power supply is in
constant vol tage mod e

Sense

No

CC

The power supply is in
constant curr ent mod e

Ext

No

*

No

Adrs

（USB GPIB）

light when the
address match or (RS232)
received order

Meter

Meter mode

Rmt

The power supply is in remote
mode

Shift

Use compound keys

Error

The power supply has error or

fault

OVP

OVP function state on

Prot

OVP /OTP/OCP Protection

OCP

OCP functi on state on

Lock

Key operation is locked

2.5 Introduction of rear panel

 Rear panel of IT6722

1. RS232 Communication interface

2. USB Communication interface

3. GPIB Communication interface

4. Remote sense termi nal and the output terminal

5. Cooling fans

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 14

6. AC power socket

 Rear panel of IT6722A

1. Remote sense termi nal and the output terminal

2. Cooling fans

3. USB Communication interface

4. RS232 Communication interface

5. AC power socket

 Rear panel of IT6723/IT6723B/IT6723C/IT6723G/IT6723H/

IT6724/IT6724B/IT6724C/IT6724G/IT6724H

1. Cooling fans

2. RS232 Communication interface

3. USB Communication interface

4. GPIB Communication interface

5. Remote sense terminal and the output ter minal

6. Fuse

7. AC power socket

 Rear panel of IT6726H/IT6726G/IT6726V/IT6726B

1. Cooling fans

2. RS232 Communication interface

3. USB Communication interface

4. GPIB Communication interface

5. factory using terminal

6. Fuse

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 15

7. AC power socket

8. Remote sense terminal and the output ter minal

NOTE

Above the output terminals in the rear panel of IT6726B/IT6726G/IT6726H/IT6726V has
a factory using terminal, which users cannot use.

 Rear panel of IT6726C

1. Cooling fans

2. RS232 Communication interface

3. USB Communication interface

4. GPIB Communication interface

5. RS485 Communication interface

6. Fuse

7. AC power socket

8. the output terminal

9. Remote sense terminal

2.6 Power-on selftest

A suc ce ssf ul sel ft est i ndi cat es that the purchased power prod uct meet s deli very
standards and is available for normal usage.

Before operation, please confir m 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 con nect 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 suppl y is well gr ounded.

 To avoid burning out, pay attention to marks of positive and n egative

polarities before wi ring.

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 16

Selftest steps

Normal selftest procedur es:

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

2. After selftest, VFD display the output vol tage and current st atus as below:

Error Information References

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

 If the EEPROM w as damaged, the VFD will display “EEPROM FAIL”.
 If the last power status in EEPROM is lost , then VFD will display “SYST

LOST”.

 If the calibration dat a in EEPROM is lost, then VFD wil l displ ay “CAL

LOST”.

 If the factory calibration data in EE PR OM is lost, and then the VFD will

display “FACT LOST”.

Exception handling

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

1. Check whether the pow er 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 chec k

whether the exception is removed.

2. Check whether the pow er in On. Pow er key is under “ ” On status.
Yes => 3
No => Please check the Power key to start power and check whet her the

exception is removed.

3. Check whether the fuse of power supply is burned out.
If yes, change fuse. Detai led 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. After the fuse box is
opened, you can see the fuse in it. Please replace with a fuse of the
same specification.

2) If the fuse i s fused, pl ease ch ang e fuse of same specification based on
machine model. See the table blow for matching information of fuse
and machine model .

OFF

0.0V 0.00A

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 17

Fuse speci fication list

Model

Fuse specif ication

（

220VAC）

Fuse specif ication

（

110VAC）

IT6722/IT6722A

5AT 250V

Does not support

110VAC input

IT6723/IT6723B/IT6723C/

IT6723H/IT6723G

15AT 250V 15AT 250V

IT6724/IT6724B/IT6724C/

IT6724H/IT6724G

15AT 250V

Does not support

110VAC input

IT6726H/IT6726G/

IT6726V/IT6726B/

IT6726C

20AT 250V

Does not support

110VAC input

3) When install, use a screwdriver to push and t urn the fuse box. Refer to
the pictur e below.

NOTE

Fuse of IT6726B/IT6726C/IT6726G/IT6726H/IT6726V can unscrew directly by hand.

2.7 Output Checkout

The following procedures check to ens ure that the power supply develops its
rated outputs and properly responds to operati on from the front panel.

Voltage Output Checkout

The following steps verify basic volt age functions without l oad.

1. Turn on the power supply.

2. Set the current value(≥0.01A).

3. Enable the outputs.
Press key ( key will be lit) to let the CV annunciat or turn

on to light .

4. turn on Meter mode.
press the M ETER key to light the button, the Meter status Mark light s on

the display is turned on.

5. Set the voltage for t he power suppl y.
Set different voltage values, check the voltage value displ ayed on the VFD

is close to t he voltage value you set, and t o check if the VFD displayed
current val ue is nearly zero.

6. Ensure that the vol tage can be adjusted from zero to the full rated value.

----End

Current Output ch eckout

1. Turn on the power supply.

2. Press key to ensure that the output is disabled. At the same time,
the OFF status mark is on the VFD .

On/Off

On/Off

On/Off

Quick Start

Copyri ght © It e ch Ele ct ronics Co., Ltd. 18

3. Connect a short across( +) and (-) output terminals with an insulated test
lead, use a wire suffi cient to handle the m aximum current.

4. Adjust the voltage value to 1V.

5. Turn on the power output.
Press key to ensure the output is enabled, at the same time

there is CC status sign on th e V FD .

6. Turn on METER function key.
Press METER key to light it, and the METER status sign is on the V FD.

7. Adjust the current value.
Set some diff er ent cur rent val ues, che ck w het her t he vol t age val ue on VFD

is near 0v, and t he current on it is close to the value you set.

8. Make sure that the curr ent can be adju sted from 0 to full rated value.

9. Turn off the output of the power supply, and remove the short wire.

----End

On/Off

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 19

Chapter III Function and Features

This chapter will introduce the basic operation of IT6700 series power
supply,including the following subdivisions:

 Switching of local/remote operation modes

 Voltage setup
 Cur r ent setup
 Output on/off operation
 S etup value/actual value switching
 Voltage/current/power adjustment
 Save/recall operation
 Trigger operation
 Me nu operation
 OVP protection functio n
 K ey l ock function
 Remote sense function

3.1 Switching of local/remote operation modes

Local button can enable you switch mode from remote to local mode.
After you power on the power supply, the power supply’s default mode is local

mode, all the buttons can be used in thi s mode. While in remote mode, you
can’t operate through fr ont panel directly except M eter and Local keys. Local
and remote mode can be controlled thr ough P C. In addition, the mode
changing w ill not influence the output parameters.

3.2 Voltage Setup

You can set voltage within the range of rated voltage value. When y ou press

button, the button will be lit. This indicates that you can set voltage.

There are three ways to set output volt age through front panel.
 The first way: press , adjust cursor location throug h

button, pressing and will enable you t o adjust the setting voltage
value.

 The second way : press , adjust cursor loca ti on t hrough

button, adjust rotary knob to change the setti ng voltage val ue.

 The third way: press button and number key ( to ) to set

voltage value

3.3 Current Setup

You can set current within the range of rated current value. When you press

button, the button will be lit. This indicates that you can set current.

There are three ways to set output current through front panel.
 The first way: press ,adjust cursor location through

V-setV-set

V-setV-set

V-setV-set

V-setV-set

0

9

I-setI-set

I-setI-set

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 20

button, push and will enable you to adjust t he setting current
value.

 The second way: press ,adjust cursor location through

button, adjust rotary knob to change the setti ng current value.

 The third way: press button and number key ( to ) to set

current value

3.4 Output On/Off Operation

button is used to control the output state of power supply. When
button is lit, this indicates the output is in on mode. When output is

open, the w orking state indicator light(CV/CC) wi ll be lit.

NOTE

Make sure you have connected power supply and the test unit well, then press

button. If there is no voltage output, you should first check the voltage and

current set.

3.5 Setup value/Actual value switching

You can switch the display between setting value and actual val ue by pressing

button. When this button is lit, screen displays actual output value
and the indicator light “Meter” will be lit on the VFD. In other words, when the
button is not lit, the front panel displays setting val ue.

3.6 Voltage/Current/Power adjustment

The output current value is determined by output voltage of power supply and
electronic load’s resistance. O nly when the actual current value is l ower than
the setti ng current value, can power supply work i n C V mode and the will CV
indicator light be lit.

If output current is higher than the setting val ue, then power supply will function
in CC mode. And the CC indicat or light will be l it.

The output voltage and current value are also influenced by the upper limit of
output pow er.

Take IT6723H (300V/10A/850W) for exampl e, suppose you set the voltage t o
100V, then the current can just reach 8.5A(limited by the power).

3.7 Save/recall Operation

Customer can save some often-used parameters in nonvolatile memor y. You
can use the button (Shift)、 (Save) button or SCPI order *SAV、

*RCL to achieve this function. Saving parameters include:

1.setti ng voltage 2.setting current 3. OVP value 4. OCP value

Saving operation:

Press (Shift)+ (save) button( button will flash), and t hen
input the group number y ou want to save t hrough number key board. Pres s

button to confirm.

Recall operat ing:

Press button ( button will lit), and press corresponding gr oup

I-setI-set

I-setI-set

0

9

On/Off

On/Off

On/Off

MeterMeter

Recall

Recall

Recall

Enter

Recall

Recall

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 21

number(number1-9).At last press button to confirm.

NOTE

The memory capacity is 9*8, which indicate 8 memory groups and 9 memory in each
group. The memory group you use at the present should be selected in the Menu(MEM
GROUP)., refer to chapter 3.9.

IT6726G/IT6726H has 9×7 groups of memory capacities.

3.8 Trigger operation

The trigger source of IT6700 include manual and BUS, ma nual means trigger
by button of t he front panel, and BUS means tr igger by command from the PC.

You need to select the trigger sour ce (TRIG) from the menu bef ore using thi s
function.

After you edit a list file, press (Shift) + （Trigger）to give a tri gger
signal. During the running process, button will flash all the time.

3.9 Menu operation

Press (Shift) + (Menu) to enter the menu . You will see a optional
items on the screen, through direction keys and rotary knob to overturn VFD

display, then the screen w ill display the followi ng functions .Press
button will enter corresponding items. Press button wi ll return to previous

menu.
IT6722/IT6723/IT6723B/IT6723C/IT6723G/IT6723H/IT6724/IT6724B/IT6724C/

IT6724G/IT6724H/IT6726B/IT6726G/IT6726H/IT6726V power supply menu
function is shown as below.

MAX VOLT

Set the max voltage output l imit

OCP SET
OFF

Disable the OCP function

ON

Enable the OCP function

SYST SET

P-MEM

（

RESET）

Reset

Power on parameter is r estored to factory setting

Keep

Set the power -on parameter as the last power off stat e

P-OUT (OFF)

OFF

Set the power -on output state to be Offt

Keep

Set the power-on output state to be the last power-off
output stat e

COMM (G P IB)

GPIB

ADDR

Address can b e set within 0-30

RS232

BAUD

4800
9600

19200

38400
57600

115.2K

NONE 8BIT

NONE 8BIT

EVEN 8BIT

ODD 8BIT

MODE

SIGNAL

MUX

Address can be set
within 0-30

USB

Select USBc ommunication interface

BEEP (ON)

OFF

Disable the key sound

Enter

Enter

Enter

I-setI-set

Enter

ESC

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 22

ON

Enable the key sound

KNOB (ON)

LOCK

Lock the rotary knob function

ON

Un-lock the rotary knob funct ion

TRIG
(MANUAL)

MANU

Local keyboard trigger

BUS

Trigger by command

MEM
(GROUP1)

GRP1-8

Select memor y group for Sa ve and recall operation

TIMER SET

OFF

Disable the timer function

ON

Enable the timer functi on, time range 0.1-99999S

RESET

NO

keep the present settings

YES

restore the f actory setting

EXIT

Quit the men u setting

LIST SET

LI ST STATE

OFF

Set the LIST state as OFF

ON

Set the LIST state as ON

LIST LOAD

Re-load the LIST file(FILE0-FILE9)

LIST EDIT

TIME
(SEC)

SEC

Second

MIN

Minute

VSET

Set the voltage for present step

ISET

Set the current for present step

SEC

Setup single step delay time (0.1-9999)

NEXT
(YES)

YES

continue the edit of nex t step

NO

End up the list file edit

REPET

1-65535

Set the cycle count of list file

SAVE

NO

Un-save the current LIST file

FILE0-FILE9

Save the list file to appointed
memory

EXIT

Exit the system menu

POWER INFO

MODEL
ITXXXX

Unit model

VER

the software versi on

SN-1 XXXXXX

the first six number of SN

SN-2 XXXXXX

the middle six number of SN

SN-3 XXXXXX

the last si x number of SN

EXIT

Exit the i nformation menu

EXIT MENU

Exit the main menu

IT6722A power supply menu function is shown as below.

MAX VOLT

Set the max voltage output l imit

OCP SET
OFF

Disable the OCP function

ON

Enable the OCP function

SYST SET

P-MEM

（

RESET）

Reset

Power on parameter is r estored to factory setting

Keep

Set the power -on parameter as the last power off stat e

P-OUT (OFF)

OFF

Set the power -on output state to be Offt

Keep

Set the power-on output state to be the last power-off
output stat e

COMM (G P IB)

GPIB

ADDR

Address can b e set within 0-30

RS232 BAUD

4800

9600

19200
38400

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 23

57600

115.2K

NONE 8BIT

NONE 8BIT

EVEN 8BIT

ODD 8BIT

USB

Select USBc ommunication interface

BEEP (ON)

OFF

Disable the key sound

ON

Enable the key sound

KNOB (ON)

LOCK

Lock the rotary knob function

ON

Un-lock the rotary knob funct ion

TRIG
(MANUAL)

MANU

Local keyboard trigger

BUS

Trigger by command

MEM
(GROUP1)

GRP1-8

Select memor y group for Sa ve and recall operation

TIMER SET

OFF

Disable the timer function

ON

Enable the timer functi on, time range 0.1-99999S

RESET

NO

keep the present settings

YES

restore the f actory setting

EXIT

Quit the men u setting

LIST SET

LI ST STATE

OFF

Set the LIST state as OFF

ON

Set the LIST state as ON

LIST LOAD

Re-load the LI ST file(FILE0-FILE9)

LIST EDIT

TIME
(SEC)

SEC

Second

MIN

Minute

VSET

Set the voltage for present step

ISET

Set the current for present step

SEC

Setup single step delay time (0.1-9999)

NEXT
(YES)

YES

continue the edit of nex t step

NO

End up the list file edit

REPET

1-65535

Set the cycle count of list file

SAVE

NO

Un-save the current LIST file

FILE0-FILE9

Save the list file to appointed
memory

EXIT

Exit the system menu

POWER INFO

MODEL
ITXXXX

Unit model

VER

the softw are versi on

SN-1 XXXXXX

the first six number of SN

SN-2 XXXXXX

the middle six number of SN

SN-3 XXXXXX

the last si x number of SN

EXIT

Exit the i nformation menu

EXIT MENU

Exit the main menu

IT6726C power supply menu function is show n as below.

MAX VOLT

Set the max voltage output l imit

OCP SET
OFF

Disable the OCP function

ON

Enable the OCP function

CHANG

MODE

ON

Enable the charge-mode function

OFF

Disable the charge-mode function

SYST SET

P-MEM

Reset

Power on parameter is r estored to factory setting

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 24

（

RESET）

Keep

Set the power -on parameter as the last power off stat e

P-OUT (OFF)

OFF

Set the power -on output state to be Offt

Keep

Set the power-on output state to be the last power-off
output stat e

COMM (G P IB)

GPIB

ADDR

Address can b e set within 0-30

RS232

BAUD

4800
9600
19200
38400
57600

115.2K

NONE 8BIT

NONE 8BIT

EVEN 8BIT

ODD 8BIT

MODE

SIGNAL

MUX

Address can be set
within 0-30

USB

Select USBc ommunication interface

RS485

BAUD

4800
9600
19200
38400
57600

115.2K

NONE 8BIT

NONE 8BIT
EVEN 8BIT
ODD 8BIT

MODE

SIGNAL
MUX

Address can be set
within 0-30

BEEP (ON)

OFF

Disable the key sound

ON

Enable the key sound

KNOB (ON)

LOCK

Lock the rotary knob function

ON

Un-lock the rotary knob funct ion

TRIG
(MANUAL)

MANU

Local keyboard trigger

BUS

Trigger by command

MEM
(GROUP1)

GRP1-8

Select memor y group for Sa ve and recall operation

TIMER SET

OFF

Disable the timer function

ON

Enable the timer functi on, time range 0.1-99999S

RESET

NO

keep the present settings

YES

restore the f actory setting

EXIT

Quit the men u setting

LIST SET

LI ST STATE

OFF

Set the LIST state as OFF

ON

Set the LIST state as ON

LIST LOAD

Re-load the LIST file(FILE0-FILE9)

LIST EDIT

TIME
(SEC)

SEC

Second

MIN

Minute

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 25

VSET

Set the voltage for present step

ISET

Set the current for present step

SEC

Setup single step delay time (0.1-9999)

NEXT
(YES)

YES

continue the edit of nex t step

NO

End up the list file edit

REPET

1-65535

Set the cycle count of list file

SAVE

NO

Un-save the current LIST file

FILE0-FILE9

Save the list file to appointed
memory

EXIT

Exit the system menu

POWER INFO

MODEL
ITXXXX

Unit model

VER

the software versi on

SN-1 XXXXXX

the first six number of SN

SN-2 XXXXXX

the middle six number of SN

SN-3 XXXXXX

the last si x number of SN

EXIT

Exit the i nformation menu

EXIT MENU

Exit the main menu

NOTE

Pressing button can enable you to quit any function setting.

Maximum voltage set（M AX VOLT）

The range of setting volt age is from 0V to rated voltage. You can press
(Shift) + (Menu) button to enter the menu, then press 、 key to

select >MAX VOLT item. Press button to confirm. After you set the
max voltage value, the output voltage value can only be set within t he max
voltage. T he defaul t max voltage val ue i s the rated value.

Over current protection set (OCP SET)

Over current protecti on feature allows the user to set an over current protect ion
point, when the current in the circuit is larger than the current protection point,
the power su pply will enter OCP protection. Over current protection, power
output wil l be off, and accompa ni ed by the chirping of t he buz z er, the VFD mark
Prot will be lit, and the emer gence of "OVER C UR R" alarm

The operation to set the OCP point:

1. Press (Shift) + （Menu）button to menu.

2. Press 、 to overturn to OCP SET, press button to confirm.

3. Press 、 to select ON，press to confirm.

4. Set OCP point by pressing numeric keys, then press . At last,

press to escape.

Charge-mode function set (CHANG)

This functi on is used for IT6726C power to batt er y char gi ng. When ON opt i on i s
selected, t he power output is turned off after co mpleting the battery charge,
meanwhile the power will not reverse current, that is to say the battery will not

ESC

I-setI-set

Enter

I-setI-set

Enter

Enter

Enter

Esc

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 26

discharge. When OFF option is selected, the power will reverse current after
the battery charge fi nished and the battery will discharge. The default setting is
OFF option.

NOTE

In addition to providing a battery charge, IT6726C power is used for other work, please
select OFF option for CHANG function.If the function is selected for CHANG ON option,
when the power output is turned off, fall-time of the power becomes very long.

Only IT6726C Power contains CHANG function.

Power-on parameters set (P-MEM)

This item can set power on parameters. If you select RESET item, t hen all the
parameter s will be initialized to the factory setting. Output voltage and current
will always be 0V/max rated current; if set to Keep, the output value will be the
same wit h last power off state. The default setting is RESET item.

Power On Output State (P-OUT)

This item can set the power on output stat e. If you sel ect KEEP item, that
indicates t he power on outp ut state is t he same with output state before this
item is set. If you select Off item, unit will automat ically in off mode when you
power on. Default setting is Off item.

Communication (COMM)

Our unit has provided three standard communication interfaces:
RS232/USB/GPIB.In this option, you can select the communication interf ace
according to your demand s. The range of GPIB address is 0-30. Besides, we
have multi-baudrate to be cho sen in RS232
mode---4800,9600,19200,38400,57600, 115.2K.Data bit is 8,Check digit have
three choices: NONE,ODD,EVEN.Before you begin to carry out
communication,please make sure the configure in our unit agrees with PC
configure.

Key Sound Set (BEEP)

This item can s et the k ey sound st at e. If i n On mode, the p ow er supply will issue
beeper sound when you press any button.If in Off mode,the beeper will not
make a sound.The default set is in on mode.

Rotary Knob Set (KNOB)

This item is used to set rotary knob state. In On mode,you can use this rotary
knob to set the output value and overturn the menu items.In Lock mode,this
knob can’t be used.The default setting is in On mode.

Trigger source (TRIG)

Before you running a list file, you need a t rigger signal.Thus you must set the
trigger mode first: keyboard tri gger or command trigger. In MANU trigger

mode, press (Shift)+ button can generate a trigger signal. In BUS
trigger mode, you can onl y trigger through sen di ng co mmand. T he d efaul t set i s

MANU option.

Memory Group Set (MEM GROUP)

Power supply can save some often-used par ameters i n a nonvolatil e
memory(capacity i s 9*8 groups).This function can m ake the operations more

Enter

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 27

conveni ent. Customer can save and recall parameter s quickly.
GRP1: This indicates saving power sup ply parameters in 1-9 groups.Press

(Shift)+ (Save) and the group number ( 1-9) can save the parameters
in corresponding groups.

GRP2: This indicates saving the parameters in 10-18 gr oups.Press (Shift) +

(Save)+saved group number(1-9）can save related parameters.Note

that the curr ent number “ 1” represents parameters are saved in 10

th

groups.Nu m ber “2” represents the para m eters are saved in 11

th

groups.
GRP3-GRP8 by parity of reasoning.
Detailed Save and Recall operation refer to chapter 3.7.

NOTE

IT6726G/IT6726H has 9×7 groups of memory capacities.

Timer Set (TIMER SET)

This item is used to set the “time on- load” function, time range 0.1-99999S .In
ON mode, the indicator light “Timer” will be lit on the VFD scree n.When output
of power sup ply is opened, timer will begin to work, after reaching the definite
time,output will be off automatically.If in OFF mode,the timer functi on will not be
enabled.The default set is OFF.

Reset (RESET)

This item is used to reset all items in the menu.If you select YES, then unit w ill
restored to f actory setting.If you select NO, all settings in the menu will r emain
unchanged.

List (List Set)

IT6700 s er i es pow er s up pl y pr ovides 9 l i st f iles, each list fil e i ncl udes 15 0 st ep s.
Before you e dit a list file, please set the trigger mo de:manual mode.

Press (Shift)+ (Menu)button to enter the menu,then press direction
key to select >SYST SET option,after that please push button to

confirm.At last to press directi on key to select >Trig MANUAL and push

button to confirm.

You can make the output change order by editing ever y step value of l ist
operation. The param eters you need to edit incl udes:single-step
voltage,single-step curr e nt, si ngle-step delay ti me and w hether to go on the next
step.Besides,you also need to set the r epeat times and save list sequence
file.Af ter the editing process,at this time if a trigger signal is received,power
supply wil l begin to work according to the sequence steps you’ve edit. Now we
take five st eps for an example.

Operation steps:

1. Press (Shift) + （Menu）butt on to enter the menu.

2. VFD display >MAX VO LT，press to select > LI ST SET，press

to confir m

3. VFD display >LIST STATE，press to select >LIST EDIT， press

to confirm.

Recall

Recall

I-setI-set

Enter

Enter

I-setI-set

Enter

Enter

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 28

4. VFD display >TIME SEC，press to conf irm，go to the next step,

you can also through button to select >T IME MIN time unit，press

to confirm.

5. VFD display >VSET 0.0, pres s number key to or through rotary

knob to set voltage，after that press to confirm.

6. VFD display ISET 0.00, press number ke y to or rotary knob to

set the single-step current , press to confirm.

7. VFD display SEC 0.100, press number key to or rotary knob t o

set single-step delay time，press to confirm(range is 0.1-9999).
If you choose MIN for the 4

th

step, VFD will display MIN 0.100 for this step,

time range 0.1~9999min.

8. VFD display NEXT >YES，press t o confirm.

9. Repeat the steps from 5) to 8) and set the four steps’ voltage/current an d

delay time separately. When screen display NEXT>YES in the fourth step
edit process, please press to select NEXT >NO,press to

confirm.

10. VFD display REPET 1，press number key to or rotary knob to

set the repeat times，press to confirm.

11. VFD display SAVE >NO，press to conf i rm，i n this circumstance,

the list fil e is not saved but can r un for one time,or you can press button
to select >SAVE FILE0,saving the list test file in FI LE 0~FILE9，press

to confirm.You can recall the fi le in the following utilization.

12. If you do not save the list test file, VFD will display LIST EDIT;if you sel ect

to save the test file,VFD will display SAVE DONE for three seconds,and
then display LIST EDITL.

Set List State

13. Press to select >LIST STATE item，press to confirm.

14. VFD display LIST >OFF, press t o select >LIST >ON, press to

confirm.Now button wi ll be lit.This indicates that list operat ion
function has been opened.

15. VFD display >LIST ST ATE，pressing button can quit the operation.

Run list file

16. Press button to open the output，press (Shift)+

（Trigger）to give a tr igger signal.

Recall list file

17. If you have edit ed several list files,you can select LIST LOAD item to recal l

the fil e you need. An d t hen pr es s to quit this operat i on.P ress
button to open the output.Now you onl y need to press (Shift)+

(T rigger) to give a trigger signal,the list file can be ran.

Quit list file

Enter

Enter

0

9

Enter

0

9

Enter

0

9

Enter

Enter

Enter

0

9

Enter

Enter

Enter

Enter

Enter

Enter

Esc

On/Off

Enter

Esc

On/Off

Enter

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 29

18. In LIST mode,voltage set and current set button can’t be used,In LIST

STATE item,choose LIST>OFF will enable you to quit list mode.

3.10 OVP function

IT6700 series power supply provide OVP function, press (Shift)+
button can enable you to set the over voltage protect i on l evel. O ver vol tage m ay
caused by internal defect or customer’s i ncorrect operation(such as output
voltage ri si ng) ,or a too hi gh ex ter nal vol tage. On ce OV P funct i on i s t ri gger ed,t he
output will be off immediately and “OVP” indicat or light will be lit,the VFD
display “OVER VOLT”.

Avoid ex ternal volt age that across t he output terminals exceeding the 120% of
rated volt age or it will dam age out power supply!

When power supply in OV P state,please check the external factors first, after
you exclude the external factors, press ON/OFF butt on to open output again.If
in communi cation state or iginally, you should by sending order OUTP ON order
to open output.

3.11 Key Lock function

Press (Shift)+ （Lock）button to set the key lock state. If keyboard
has been l ocked,the indicator light Lock will display on the VFD screen.In
addition,when key board are lock,al l butttons can’t be used but ON/O F F、
Meter buton、shift button.Press this button once again will relieve key lock
function.

3.12 Remote sense function

Remote sense can adjusted at the output voltage of the device under test, this
feature allows to compensate the volt age drop on the w ire between the front
panel terminals of the power supply and the device under test.

Vo+, Vo- : output terminals, the same wi th front pannel output terminals;
Vs+, Vs- : remote sense pins.
NC, NC : No conjunction.

TriggerTrigger

V-setV-set

On/Off

Function and Features

Copyri ght © It e ch Ele ct ronics Co., Ltd. 30

Use local sense：

Local sense doesn’t compensate the voltage drop on the connection w ire, the
operation is:

1. Use the short cli ps on the back panel of the instrument , or install wire

between Vo+ and Vs+ 、Vo- and Vs-.

2. Connect the the positive and negative terminals of the front panel to the

device under test.

Use remote sense:

Disconnect the wires between “+，-”pins if you want to use remote sense
function. Then lead a wi re from S+，S- pins and connect to the under test
objects.

1. Disconnect the wires/short clips between Vo+ and Vs+、 Vo- and Vs-.

2. Connect wires from Vs+ 、Vs- to the device u sder test.

3. Connect wires from Vo+ 、Vo- to the device under test.

NOTE

In order to ensure the stability of the system, using armored twisted pair cable between
the remote sense terminal of IT6700 and load.

Please note that the positive and negative polarity when wiring, otherwise it will damage
the instrument!

Vo+ Vs+ Vs- Vo-

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 31

Chapter IV Technical Specification

This chapter will introduce the main technical par am eters of IT6700, such as
rated volt age/current/power and so on. Besides, we will introduce the working
environme nt and storage temperature.

4.1 Main technical parameters

Parameters

IT6722

IT6722A

Rated val ues
( 0 °C-40 °C)

voltage

0~80V

current

0~20A

power

400W

Load regulati on

±(％of Output+Offset)

voltage

≤0.03%+5mV

current

≤0.1%+5mA

Line regulation

±(％of Output+Offset)

voltage

≤0.01%+5mV

current

≤0.1%+5mA

Setup resolut ion

voltage 10mV

current

10mA

Readback res olution

voltage

10mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.01%+10mV
current ≤0.1%+10mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.01%+20mV
current ≤0.1%+20mA

Ripple

(20Hz -20MHz)

voltage ≤50mVp-p

current

≤15mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage

0.02%+10mV

current 0.03%+10mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+10mV
current 0.03%+10mA

Rise tim e(No-load) voltage ≤300mS

Rise time(Full-load) voltage ≤1S

Fall time(No-load)

voltage

≤500mS

Fall time(Full-load)

voltage

≤300mS

Transient Response

Time

≤5mS

AC Input

voltage1

176V~ 264V

voltage2

/

Frequency

47Hz~63Hz

Setup stability-30min

（％

of Output +Offset）

voltage

0.01%+20mV

current 0.1%+30mA

Setup stability-8h

（％of Output +Offset）

voltage

0.01%+20mV

current

0.1%+30mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.01%+20mV

current 0.1%+30mA

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 32

Readback stability-8h

（％of Output +Offset）

voltage

0.01%+20mV

current

0.1%+30mA

Efficiency

80%(Typical)

Fuse specif ication

5A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

99%(Typical)

Maximum input current

3A

Maximum input

apparent power

500VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

USB/RS232/GPIB

USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

4Kg

Parameters

IT6723

IT6724

Rated val ues
( 0 °C-40 °C)

voltage

0~80V

current

0~40A

power

850W

1500W

Load regulati on

±(％

of Output+Offset)

voltage

≤0.01%+10mV

current

≤0.1%+10mA

Line regulation

±(％of Output+Offset)

voltage

≤0.01%+10mV

current

≤0.1%+10mA

Setup resolut ion

voltage

10mV

current

10mA

Readback res olution

voltage

10mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+20mV
current ≤0.1%+40mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.03%+20mV
current ≤0.1%+40mA

Ripple

(20Hz -20MHz)

voltage ≤100mVp-p

current

≤50mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+10mV
current 0.03%+20mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.01%+10mV
current 0.03%+20mA

Rise tim e(No-load) voltage ≤300mS

Rise time(Full-load)

voltage

≤500mS

Fall time(No-load)

voltage

≤5S

Fall time(Full-load)

voltage

≤150mS

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 33

Transient Response

Time

≤500uS

AC Input

voltage1

110V±10%

220V±10%

voltage2

220V±10%

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+20mV

current 0.1%+40mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+20mV

current

0.1%+40mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+20mV

current 0.1%+40mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+20mV

current

0.1%+40mA

Efficiency

84%

88%

Fuse specif ication

15A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

10A

Maximum input

apparent power

1100VA 2000VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Working temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

6Kg

Parameters

IT6723B

IT6724B

Rated val ues
( 0 °C-40 °C)

voltage

0~150V

current

0~20A

power

850W

1500W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+40mV

current

≤0.1%+10mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+30mV

current

≤0.1%+10mA

Setup resolut ion

voltage 100mV

current

10mA

Readback res olution

voltage

100mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+100mV 0.03%+100mV
current ≤0.1%+20mA 0.1%+20mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.03%+200mV 0.03%+200mV
current ≤0.1%+20mA 0.1%+20mA

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 34

Ripple

(20Hz -20MHz)

voltage ≤150mVp-p

current

≤30mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV 0.02%+100mV
current 0.03%+20mA 0.03%+20mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage

0.02%+100mV

0.02%+100mV

current 0.03%+20mA 0.03%+20mA

Rise tim e(No-load) voltage ≤300mS

Rise time(Full-load)

voltage

≤1S

Fall time(No-load)

voltage

≤5S

Fall time(Full-load)

voltage

≤200mS

Transient Response

Time

≤500uS

AC Input

voltage1

110V±10%

220V±10%

voltage2

220V±10%

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+75mV

current 0.1%+20mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+75mV

current

0.1%+20mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+75mV

current 0.1%+20mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+75mV

current

0.1%+20mA

Efficiency

84%

88%

Fuse specif ication

15A

Remote Sense
Compensation

1V

Command Response

Time

10-600mS

Power Factor

0.98(Typical)

Maximum input current

10A

Maximum input

apparent power

1100VA 2000VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

6Kg

Parameters

IT6723C

IT6724C

Rated val ues
( 0 °C-40 °C)

voltage

0~32V

current

0~110A

power

850W

1500W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+5mV

current

≤0.1%+10mA

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 35

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+5mV

current

≤0.1%+10mA

Setup resolut ion

voltage

10mV

current

10mA

Readback res olution

voltage

10mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+10mV
current ≤0.1%+60mA

Readback accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+20mV
current ≤0.1%+60mA

Ripple

(20Hz -20MHz)

voltage ≤100mVp-p

current

≤150mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+10mV
current 0.03%+10mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage

0.02%+10mV

current 0.03%+10mA

Rise tim e(No-load) voltage ≤300mS

Rise time(Full-load)

voltage

≤500mS

Fall time(No-load)

voltage

≤5S

Fall time(Full-load)

voltage

≤150mS

Transient Response

Time

≤500uS

AC Input

voltage1

110V±10%

220V±10%

voltage2

220V±10%

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+10mV

current 0.1%+60mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+10mV

current

0.1%+60mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+10mV

current 0.1%+60mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+10mV

current

0.1%+60mA

Efficiency

84%

88%

Fuse specif ication

15A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

10A

Maximum input

apparent power

1100VA 2000VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 36

Worki ng temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

6Kg

Parameters

IT6723G

IT6724G

Rated values
( 0 °C-40 °C)

voltage

0~600V

current

0~5A

power

850W

1500W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+100mV

current

≤0.1%+10mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+50mV

current

≤0.1%+10mA

Setup resolut ion

voltage 100mV

current

10mA

Readback res olution

voltage

100mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+20mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+20mA

Ripple

(20Hz -20MHz)

voltage ≤300mVp-p

current

≤30mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV

current

0.03%+10mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage

0.02%+100mV

current 0.03%+10mA

Rise time(No-load) voltage ≤300mS

Rise time(Full-load) voltage ≤1S

Fall time(No-load)

voltage

≤5S

Fall time(Full-load)

voltage

≤200mS

Transient Response

Time

≤500uS

AC Input

voltage1

110V±10%

220V±10%

voltage2

220V±10%

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+200mV

current 0.1%+20mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+200mV

current

0.1%+20mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+200mV

current 0.1%+20mA

Readback stability-8h

（％

of Output +Offset）

voltage

0.03%+200mV

current

0.1%+20mA

Efficiency

84%

88%

Fuse specif ication

15A

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 37

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

10A

Maximum input

apparent power

1100VA 2000VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

6Kg

Parameters

IT6723H

IT6724H

Rated val ues
( 0 °C-40 °C)

voltage

0~300V

current

0~10A

power

850W

1500W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+100mV

current

≤0.1%+10mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+50mV

current

≤0.1%+10mA

Setup resolution

voltage 100mV

current

10mA

Readback res olution

voltage

100mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+20mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+20mA

Ripple

(20Hz -20MHz)

voltage ≤250mVp-p

current

≤40mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV

current 0.03%+20mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV

current 0.03%+20mA

Rise tim e(No-load) voltage ≤300mS

Rise time(Full-load) voltage ≤1S

Fall time(No-load)

voltage

≤5S

Fall time(Full-load)

voltage

≤150mS

Transient Response

Time

≤500uS

AC Input

voltage1

110V±10%

220V±10%

voltage2

220V±10%

/

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 38

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+150mV

current 0.1%+20mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+150mV

current

0.1%+20mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+150mV

current 0.1%+20mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+150mV

current

0.1%+20mA

Efficiency

84%

88%

Fuse specif ication

15A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

10A

Maximum input

apparent power

1100VA 2000VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

214.5mmW×88.2mmH×445mmD

Weight（net）

6Kg

Parameters

IT6726B

Rated val ues
( 0 °C-40 °C)

voltage

0~160V

current

0~40A

power

3000W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+50mV

current

≤0.1%+10mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+40mV

current

≤0.1%+10mA

Setup resolut ion

voltage 100mV

current

10mA

Readback res olution

voltage

100mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+40mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.03%+200mV

current ≤0.1%+40mA

Ripple

(20Hz -20MHz)

voltage ≤250mVp-p

current

≤50mArms

Setup Temp.coefficient voltage 0.02%+100mV

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 39

(%Output/°C+Offset)

current 0.03%+20mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+200mV

current 0.03%+20mA

Rise tim e(No-load) voltage ≤500mS

Rise time(Full-load) voltage ≤2S

Fall time(No-load)

voltage

≤10S

Fall time(Full-load)

voltage

≤400mS

Transient Response

Time

≤500uS

AC Input

voltage1

220V±10%

voltage2

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+200mV

current 0.1%+40mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+200mV

current

0.1%+40mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+200mV

current 0.1%+40mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+200mV

current

0.1%+40mA

Efficiency

88%

Fuse specif ication

20A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

18A

Maximum input

apparent power

3700VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

482.5mmW×88.2mmH×548.9mmD

Weight（net）

16Kg

Parameters

IT6726C

Rated val ues
( 0 °C-40 °C)

voltage

0~32V

current

0~220A

power

3000W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+50mV

current

≤0.1%+30mA

Line regulat ion

±(％

of Output+Offset)

voltage

≤0.01%+50mV

current

≤0.1%+10mA

Setup resolut ion

voltage 10mV

current

10mA

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 40

Readback res olution

voltage

10mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+30mV
current ≤0.2%+100mA

Readback accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+30mV
current ≤0.2%+100mA

Ripple

(20Hz -20MHz)

voltage ≤200mVp-p

current

≤320mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+10mV
current 0.03%+20mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+10mV
current 0.03%+20mA

Rise tim e(No-load) voltage ≤500mS

Rise time(Full-load)

voltage

≤2S

Fall time(No-load)

voltage

≤10S

Fall time(Full-load)

voltage

≤400mS

Transient Response

Time

≤500uS

AC Input

voltage1

220V±10%

voltage2

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+30mV

current 0.2%+60mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+30mV

current

0.2%+60mA

Readback

stability-30min

（％

of Output +Offset）

voltage

0.03%+30mV

current 0.2%+60mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+30mV

current

0.2%+60mA

Efficiency

88%

Fuse specif ication

20A

Remote Sense
Compensation

1V

Command Response

Time

10-600mS

Power Factor

0.98

Maximum input current

18A

Maximum input

apparent power

3700VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

482.5mmW×88.2mmH×548.9mmD

Weight（net）

16Kg

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 41

Parameters

IT6726G

IT6726H

Rated val ues
( 0 °C-40 °C)

voltage

0~600V

0~300V

current

0~10A

0~20A

power

3000W

3000W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+100mV

≤0.01%+100mV

current

≤0.1%+10mA

≤0.1%+10mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+50mV

≤0.01%+50mV

current

≤0.1%+10mA

≤0.1%+10mA

Setup resolut ion

voltage 100mV 100mV

current

10mA

10mA

Readback res olution

voltage

100mV

100mV

current

10mA

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+200mV ≤0.03%+200mV

current ≤0.1%+20mA ≤0.1%+30mA

Readback accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.03%+200mV ≤0.03%+200mV

current ≤0.1%+20mA ≤0.1%+30mA

Ripple

(20Hz -20MHz)

voltage ≤500mVp-p ≤300mVp-p

current

≤50mArms

≤50mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV 0.02%+100mV

current 0.03%+10mA 0.03%+10mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage

0.02%+100mV

0.02%+100mV

current 0.03%+10mA 0.03%+10mA

Rise tim e(No-load) voltage ≤500mS ≤500mS

Rise time(Full-load) voltage ≤2S ≤2S

Fall time(No-load)

voltage

≤10S

≤10S

Fall time(Full-load)

voltage

≤400mS

≤400mS

Transient Response

Time

≤500uS

AC Input

voltage1

220V±10%

voltage2

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.03%+200mV

0.03%+200mV

current 0.1%+20mA 0.1%+30mA

Setup stability-8h

（％of Output +Offset）

voltage

0.03%+200mV

0.03%+200mV

current

0.1%+20mA

0.1%+30mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.03%+200mV

0.03%+200mV

current 0.1%+20mA 0.1%+30mA

Readback stability-8h

（％of Output +Offset）

voltage

0.03%+200mV

0.03%+200mV

current

0.1%+20mA

0.1%+30mA

Efficiency

88%

Fuse specif ication

20A

Remote Sense
Compensation

1V

Command

10-600mS

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 42

Response Tim e

Power Factor

0.98

Maximum input current

18A

Maximum input

apparent power

3700VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

482.5mmW×88.2mmH×548.9mmD

Weight（net）

16Kg

Parameters

IT6726V

Rated val ues
( 0 °C-40 °C)

voltage

0~1200V

current

0~5A

power

3000W

Load regulati on

±(％of Output+Offset)

voltage

≤0.01%+200mV

current

≤0.1%+20mA

Line regulat ion

±(％of Output+Offset)

voltage

≤0.01%+100mV

current

≤0.1%+20mA

Setup resolut ion

voltage 100mV

current

10mA

Readback res olution

voltage

100mV

current

10mA

Setup accuracy

（

one year 、25°C±5°C)

±(％

of Output+Offset)

voltage ≤0.04%+200mV
current ≤0.1%+20mA

Readback accuracy

（

one year 、25°C±5°C)

±(％of Output+Offset)

voltage ≤0.04%+200mV
current ≤0.1%+20mA

Ripple

(20Hz -20MHz)

voltage ≤600mVp-p

current

≤50mArms

Setup Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV
current 0.03%+10mA

Readback

Temp.coefficient

(%Output/°C+Offset)

voltage 0.02%+100mV
current 0.03%+10mA

Rise tim e(No-load) voltage ≤500mS

Rise time(Full-load) voltage ≤2S

Fall time(No-load)

voltage

≤10S

Fall time(Full-load)

voltage

≤400mS

Transient Response

Time

≤500uS

AC Input

voltage1

220V±10%

voltage2

/

Frequency

47HZ-63HZ

Setup stability-30min

（％

of Output +Offset）

voltage

0.04%+200mV

current 0.1%+20mA

Technical Specification

Copyri ght © It e ch Ele ct ronics Co., Ltd. 43

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

4.2 Supplementary parameters

Memory: 9×8 groups
Suggested calibration frequency: 1time/year
Radiating mode :Fans

Setup stability-8h

（％of Output +Offset）

voltage

0.04%+200mV

current

0.1%+20mA

Readback

stability-30min

（％of Output +Offset）

voltage

0.04%+200mV

current 0.1%+20mA

Readback stability-8h

（％of Output +Offset）

voltage

0.04%+200mV

current

0.1%+20mA

Efficiency

88%

Fuse specif ication

20A

Remote Sense
Compensation

1V

Command

Response Tim e

10-600mS

Power Factor

0.98

Maximum input current

18A

Maximum input

apparent power

3700VA

Storage temperature

-10℃~70℃

Protective fun c tio n

OVP/OCP/OTP

standard Interface

GPIB/USB/RS232

Isolation

(output to ground)

500V

Worki ng temperature

0~40℃

Dimension（mm）

482.5mmW×88.2mmH×548.9mmD

Weight（net）

16Kg

Remote Operation Mode

Copyri ght © It e ch Ele ct ronics Co., Ltd. 44

Chapter V Remote Operation Mode

IT6700 series power supply is pr ovided with thr ee communication interfaces to
communicate with a computer for sel ection, including S232, USB, RS485 and
GPIB. IT6722A has not st andard GPIB communication interf ace.

5.1 RS232 interface

There is a D B9 connector at the rear of the power suppl y, when connect to
computer, you need to select a cable wit h COM port on both si de; to active
communication, you need to enable the settings in menu to be the same with
the PC commu nication configuration.

NOTE

The RS232 settings must match the settings in front panel system information. If any
change, please press (Shift)+ key to modify the me nu: SYST SET \COMM.

RS-232 data format

RS-232 data i s a 10-bit words which has a start bit and a stop bit. The start bit
and stop bit can’t be edited. However, you can select the parity items with
(Shift) + key on the front panel .

Parity options are stored in nonvolatile memory.

Baud Rate

The front panel (Shift) + button allows the user to select a baud
rate which is stored i n the non-volatile memory:
4800/9600/19200/38400/57600/115200.

RS-232 connection

Use a RS232 cable with DB-9 interface, R S -232 serial port can connect with
the controller (eg PC). D o not use blank Modem cable. Below Table shows t he
plug pins.

If your computer is usi ng a R S -232 interface with DB-25 connector, you need
an adapter cable with a DB-25 connector at one end and the other side is a
DB-9(not blank mode m cabl e) .

RS232 Pins of P lug

Base pin
number

Description
1

No conjunction

2

TXD, data transmission

3

RXD, data r eceiving

4

No conjunction

5

GND, grounding

6

No conjunction

7

CTS, cl ear to send

8

RTS, r equest to send

9

No conjunction

I-setI-set

I-setI-set

I-setI-set

Remote Operation Mode

Copyri ght © It e ch Ele ct ronics Co., Ltd. 45

RS-232 Troubles h o o ting:

If there is RS-232 connect ion problem, check the following:
 Computer and power supply must configure the sam e baud rate, parity,

data bits and f low control options. Not e that the power configuration as a
start bi t and a stop bit (these values are fi xed).

 As described before in RS -232 connector, you must use the c orrect

interface cable or adapter. Note that eve n i f t he cabl e ha s t he right plug, the
internal w iring may be wrong.

 Interface c able must be connected to the correct serial port on the

computer (C O M1, COM2, etc.).

Communication Settings

Before co m mu nication, you should fi rst make the following parameters of
power supply and PC matches.

Baud Rate: 96 00 (4800/9600/19200/38400/57600/115200). You can enter the
system menu from the front panel, and then set the baud rate.

Data bits: 8
Stop Bits: 1
calibration (none, eve n, odd)
EVEN 8 data bits, have eve n parity
ODD 8 data bits have odd parity
NONE 8 data bits, no parity
Local Address: (0 ~ 31, the fact ory default set ting is 0)

Parity=None Start Bit 8 Data Bits Stop Bit

5.2 USB interface

Use a Cable with two USB port to connect t he power and the co mp uter. Al l
power functions can be programmed vi a US B.

The USB488 interface fun ctions of the power supply described as below:

 Interface is 488.2 USB488 interface.
 Interface Receiver REN_C O NTROL, GO _TO_LOCAL, and

LOCAL_LOCKOUT request.

 Interface Receive MsgID = TRIGGER USBTMC or der information, and will

pass TRIGGER order t o the functional layer.

Power USB488 device functions described as follows:

 Devices can read all of the ma ndatory SCPI orders.
 Device is SR1 enabled.
 Device is RL1 enabled.
 Device is DT1 enabled.

5.3 RS485 interface

IT6726C power supply, via the RS485 interface, provides multi-unit control
function f or up to 30 units ( If connecting more than 10 units, add a 120Ω
resistor terminator t o the last unit as shown in the figure below). Access the
menu tree Menu → SYST SET → COMM → RS485 to set the RS485
settings.

Remote Operation Mode

Copyri ght © It e ch Ele ct ronics Co., Ltd. 46

User can set t he following parameters of the RS485 inter face:

Baud Rate: 9600(4800/9600/19200/38400/57600/115200)
Parity and data bit: NONE/8BIT、EVEN/8BIT、ODD/8BIT
MODE：SIGNAL、MUX

SIGNAL（single-unit mode）
MUX（multi-unit mode）， ADDR(Address)，（ 0～30，the factory default
setting i s 0）

Start Bit 8 Data Bits Parity=None Stop Bit

To set the multi-unit connection mo de, access the menu tree MENU →SYST
SET → COMM → RS485 → MODE → MUX to choose the multi-unit mode.

Set each unit with a dif ferent Address (0 ~ 30). Then by using RS485 connect
the first power supply in the chain to a PC. N ow, multiple units daisy-chained
via RS485 can be controlled by one PC by using the commands specific for
multi-unit connection. See “Programming Gui de” section for details. The
following diagram shows how to connect the power supply by using RS485.

Connect to PC

Remote Operation Mode

Copyri ght © It e ch Ele ct ronics Co., Ltd. 47

5.4 GPIB interface

First, Connect the GPIB interface on the power suppl y and the GPIB car d on
computer via IEEE488 bus, m ust be full access and tighten t he screws. Then
set the address, the address range of the power : 0 to 30, can set by the

function key on the front p anel, press the (Shift)+ key to enter the
system menu function, find the GPIB address setting by button, type the
address, key to confirm. GPIB address is stor ed in nonvolati le memory

line.

I-setI-set

▼▼

EnterEn ter

Appendix

Copyri ght © It e ch Ele ct ronics Co., Ltd. 48

Appendix

Specifications of Red and Black Test Lines

ITECH provides you wit h optional red and black test lines, which i ndividual
sales and you can select for test. For specifications of ITECH t est lines and
maximum current values, refer to the t able below.

Model

Specification

Cross section

Length

IT-E301/10A

10A

-

1m

IT-E301/30A

30A

6mm2

1.2m

IT-E301/30A

30A

6mm2

2m

IT-E301/60A

60A

20mm2

1.5m

IT-E301/120A

120A

50mm2

2m

IT-E301/240A

240A

70mm2

1m

IT-E301/240A

240A

70mm2

2m

IT-E301/360A

360A

95mm2

2m

For maxi mu m c urrent of AWG copper wire, refer to t able blow.

AWG

10

12

14

16

18

20

22

24

26

28

The

Maximum
current

value( A)

40

25

20

13

10 7 5

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.

Contact Us

Thanks for purchasing I TECH products. In case of any doubts, please contact us as follows:

1.

Refer to accompanying data disk and relevant manual.

2.

Visit ITECH website:www.itechate.com

3.

Select the most convenient co ntact method, for further information.