ITech IT7321, IT7322H, IT7324, IT7322, IT7324H User Manual

Programmable AC Power

Supply

Series IT7300 User’s Manual

Model：IT7321/IT7322/IT7322H/IT7324/ IT7324H/IT7326/IT7326H Version：V2.1

Statement

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

Manual Article No.

IT7300-402210

Revision

Revision 2, published on July 10, 2017

Itech Electronic, 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 licenses of software and technical data..

Safety Statement

“Caution” signs indicate danger. 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. It is required to pay attention to the contents of these signs during implementation 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” indicates operation instructions. It is required to refer to the contents of these signs during operation steps. These signs are used for providing tips or supplementary information for operators.

IT7300 User’s Manual

Certification an d Quality Assurance

IT7300 series programmable AC power supply fully meet all of the technical specification in the manual.

Warranty service

ITECH Company will provide one-year warranty services for the product materials and manufacturing (excluding the following limitations).

 When warranty service or repair is needed, please send the product to the

service unit specified by ITECH Company.

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

customer must pay the one-way freight t o the maintenance department of ITECH, and ITECH will be responsible for return freight.

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

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

Limitation of Warranty

 Warranty service does not apply to the damage caused in the following

circumstances:

 Damage resulting from customer-wired circuits or customer-supplied parts

or accessories;

 Product which has been modified or repaired by the customer;  Damage caused by the circuit installed by the customer or damage caused

by operation of the product in non-specified environment;

 The product model or serial number is altered, deleted, removed or made

illegible 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

IT7300 User’s Manual

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

Negative terminal A chassis terminal

-

Safety Precauti ons

The following safety precautions must be observed during all phases of operation of this instrument. Failure to comply w ith 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 power line during delivery and

should be connected to 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.

 We do not accept responsibility for any direct or indirect financial

damage or loss of profit that might occur when using the instrument.

 This instrument is used for industrial purposes, do not apply this

product to IT power supply system.

 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.

IT7300 User’s Manual

 Make sure the vent hole is always unblocked.

Environmental Conditions

The IT7300 series power supply can only be used indoors or in low condensation areas. The following table shows general environmental requirements for this instrument.

Environmental conditions

Requirement

Operating temperature

0°C～40°C

Operating humidity

20%～80%（non condensing）

Storage temperature

-10°C～70 °C

Altitude

Operating up to 2,000 meters

Installation category

II

Pollution degree

Pollution degree 2

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 compli es with t he 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 spec

ified 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) directive,

2002/96/EC

The product complies with tag requirements of the WEEE

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

equipment cannot be disposed of as ordinary household

waste.

IT7300 User’s Manual

Product Category

According to the equipme nt classification in Annex I of the WEEE directive, this instrument belongs to the “Monitori ng” product. If you want to return the unnecessa r y instrument, please

contact the nearest sales office of ITECH.

IT7300 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 6100 0-4-11:2004

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 s hie lde d in ter face cable to ensure conformity with the EMC standards listed above.

Safety Standard

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

IT7300 User’s Manual

Content

CERTIFICATION AND QUALITY ASSURANCE ............................................................................................................................. I

WARRANTY SERVICE ......................................................................................................................................................... I

LIMITATION OF WARRANTY ................................................................................................................................................ I

SAFETY SIGNS .................................................................................................................................................................. I

SAFETY PRECAUTIONS ...................................................................................................................................................... II

ENVIRONMENTAL CONDITIONS ......................................................................................................................................... III

REGULA TI ON TAG ....................................................................................................................................................... III

WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE) DIRECTIVE .................................................................... III

COMPLIANCE INFORMATION .............................................................................................................................................. V

CHAPTER1 ACCEPTANCE AND INSTALLATION ................................................................................................... 1

1.1 CONFIRM PACKAGE CONTENTS ..................................................................................................................................... 1

1.2 INSTALLATION POSITION .............................................................................................................................................. 1

1.3 INS TALLATION OF POWER CORD .................................................................................................................................... 7

CHAPTER2 QUICK START .................................................................................................................................. 9

2.1 BRIEF INTRODUCTION ................................................................................................................................................. 9

2.2 INTRODUCTION OF FRONT PANEL ................................................................................................................................ 10

2.3 KEY INTRODUCTION ................................................................................................................................................. 12

2.4 VFD IND ICAT OR DESCRIPTION.................................................................................................................................... 13

2.5 INTRODUCTION OF REAR PANEL .................................................................................................................................. 13

2.6 POWER-ON SELFTEST ............................................................................................................................................... 15

2.7 VOLTAGE OUTPUT CHECKOUT .................................................................................................................................... 16

CHAPTER3 FUNCTION AND FEATURES ............................................................................................................ 18

3.1 SWITCHING OF LOCAL/REMOTE OPERATION MODES ........................................................................................................ 18

3.2 VOLTAGE SETUP ...................................................................................................................................................... 18

3.3 FREQUENCY SETUP .................................................................................................................................................. 18

3.4 PHASE ANGLE SETUP ............................................................................................................................................... 19

3.5 OUTPUT ON/OFF OPERATION ................................................................................................................................... 19

3.6 SWITCH THE VFD DISPLAY ITEMS ................................................................................................................................ 19

3.7 SAVE AND RECALL OPERATION .................................................................................................................................... 20

3.8 TRIGGER OPERATION ................................................................................................................................................ 20

3.9 MENU OPE RATI ON .................................................................................................................................................. 21

3.10 FUNCTION OPERATION ............................................................................................................................................ 24

3.11 OUTPUT RANGE .................................................................................................................................................... 31

3.12 KEY LOCK ............................................................................................................................................................. 32

3.13 BNC ................................................................................................................................................................... 32

3.14 3Ø-SETUP ............................................................................................................................................................ 33

CHAPTER4 SPECIFICATION ............................................................................................................................. 36

4.1 SPECIFICATION ........................................................................................................................................................ 36

4.2 SUPPLEMENTAL CHARACTERISTICS ............................................................................................................................... 47

CHAPTER5 REMOTE CONTROL ....................................................................................................................... 48

5.1 RS232 INTERFACE ................................................................................................................................................... 48

5.2 USB INTERFACE ...................................................................................................................................................... 49

5.3 LAN INTERFACE ...................................................................................................................................................... 50

5.4 GPIB INTERFACE ..................................................................................................................................................... 50

Acceptance and Installation

Chapter1 Acceptance 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 manual.

1.1 Confirm package contents

Open the package and check the articles within package box before operation. In case of any non-conformity, missing or appearance wearing, please contact ITECH immediately.

The package box should comprise:

Device name

Quantity

Model

Remarks

Programmable

AC Power

Supply

x1 IT7300

series

IT7300 series include:

IT7321/IT7322/IT7322H/IT7324/

IT7324H/IT7326/IT7326H

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 1.3

Installation of power cord.

USB cable

x1 -

-

CD x1 - Comprising user manual and

documents related to programming and grammatic

guidelines

Factory

alignment

report

x1 -

Test report before delivery

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.

1.2 Installation Position

The instrument should be installed at well-ventilated and rational-sized space. Please select appropriate space for installation based on the power supply size

Acceptance and Installation

Model IT7321

Overall dimensions: Width

：214.5 mm

Height：88.2 mm Depth：453.5 mm

Detailed dimensional drawings

Acceptance and Installation

Model IT7322/IT7324

Overall dimensions

：

Width

：439 mm

Height：131.4 mm Depth：535.7 mm

Detailed dimensional drawings

Acceptance and Installation

Model IT7322H/IT7324H

Overall dimensions

：

Width：439 mm Height：133.3 mm Depth：535.5 mm

Detailed dimensional drawings

Acceptance and Installation

Model IT7326

Overall dimensions

：

Width

：483.2 mm

Height：267 mm Depth：608.3 mm

Detailed dimensional drawings

Acceptance and Installation

Model IT7326H

Overall dimensions

：

Width

：483.2 mm

Height：267 mm Depth：608.3 mm

Detailed dimensional drawings

Acceptance and Installation

1.3 Installation of power cord

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

AC power input level

Working voltage for IT7321/IT7322/IT7322H/IT7324/IT7324H is 110V and 220V， Working voltage for IT7326/IT7326H is 220V.so please pay attention to the working input voltage. IT7321 model support 110V/220V AC input.The AC line switch is located at the bottom of the unit. T7322/IT7322H/IT7324/IT7324H models support 110V/220V AC input.The AC line switch is located at the rear of the unit.Please pay attention to the AC level setup before provide AC power.

AC power input level:

 Option 01:220VAC ± 10%, 47 to 63 Hz  Option 02: 110VAC ± 10%, 47 to 63 Hz

Categories of power cords

IT7321 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.

China

IT-E171

America,

Canada,Japan

IT-E172

Europe

IT-E173

Britain

IT-E174

 IT7322/IT7322H/IT7324/IT7324H/IT7326/IT7326H provides the standard

power cords as below.

The power cords supplied with this product is certified for safety. In case the supplied lines assembly needs to be replaced, or an extension lines must be added, be sure that it can meet the required power ratings of this product. Any misuse voids the warranty of this product.

Connecting AC Input

 Connect standard power cord to the power supply input terminal.

E

N L

E

L N

E

N L

E

L N

Acceptance and Installation

 IT7322/IT7322H/IT7324/IT7324H/IT7326/IT7326H AC input connector as

follows.

In the above illustration, one end of the AC power cord is connected to the AC input terminal in the rear panel of the power supply. Connect the wire, zero line and ground to the corresponding terminal of the device. Before inserting, 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 the power cord to your AC distribution panel.

Connecting AC Input

Quick start

Chapter2 Quick start

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

2.1 Brief Introduction

IT7300 Series is a kind of single-phase programmable AC power supply. It can analog various normal and abnormal AC inputs, and measure a series of important parameters of DUT. IT7300 Series power supply has following standard communication interfaces: LAN, USB, GPIB (except IT7321) and RS232. With combined features of both desktop and systematic power supplies, it can deliver multi-purpose solutions based on design and test requirements. Main features and advantages are listed below:

 Vacuum fluorescent display (VFD)  LED display of panel functio n key s  Adjustable set values by knob  Output is switch control  Display Vrms,Irms,Ipeak,frequency,PF,apparent power and active

power simultaneously

 Programmable frequen cy:45HZ-500HZ  Turn on,tur n o ff phase angle control(0-360°)  Auto current measurement range  Analog surge/trapped wave  Support front and rear panel output  High accuracy and resolution  Memory capacity:10 groups  Over-voltage,over-power,over-current,over-temperature protection

features

 Smart temperature-control fan with low noise  Support 3-phase AC power supply function when 3 units are

connected together via System Bus

 Standard communication interface LAN,USB,RS232,GPIB  Software monitoring via computer

Model Voltage Current Power IT7321 300V 3A 300VA

IT7322 300V 6A 750VA IT7322H

500V 3A 750VA

IT7324 300V 12A 1500VA IT7324H 500V 6A 1500VA IT7326 300V 24A 3000VA IT7326H 500V 12A 3000VA

*IT7321 has no 3-phase AC power supply function and GPIB interface.

Quick start

2.2 Introduction of front panel

 Front panel of IT7321

1. VFD display

2.

Rotary knob

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

4. Numeric keys and ESC

5. Function keys

6. UP, DOWN, LEFT and RIGHT key

7. Output terminals

 Front panel of IT7322/IT7324

1. Power button

2. VFD display

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

4. Numeric keys and ESC

5. Function keys

6. UP, DOWN, LEFT and RIGHT key

7. Rotary knob

8. Output terminals

9. Fan

 Front panel of IT7322H/IT7324H

Quick start

1. Power button

2. VFD display

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

4. Numeric keys and ESC

5. Function keys

6. UP, DOWN, LEFT and RIGHT key

7. Rotary knob

10. Fan

 Front panel of IT7326

1. Power button

2. VFD display

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

4. Numeric keys and ESC

5. Function keys

6. UP, DOWN, LEFT and RIGHT key

7. Rotary knob

8. Output terminals

9. Fuses

11. Fan

 Front panel of IT7326H

Quick start

1. Power button

2. VFD display

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

4. Numeric keys and ESC

5. Function keys

6. UP, DOWN, LEFT and RIGHT key

7. Rotary knob

12. Fan

2.3 Key introduction

Key description, see the table below:

Keys

Name and the function

(Shift)

Compound key，co-work with High/Auto、Phase、Save、 Menu、Trigger、Lock、Sweep、List and*Dimmer.

(Local)

Local buton, switch from remote mode to local operation mode

(Power)

Power on key

~

Numeric keys

/Sweep

Number 7/Sweep function key

/List

Number 8/List function key

Quick start

/*Dimmer

Number 9/Dimmer function key

Cancel /return keys

/High/Auto

Set the voltage value/ Switch the voltage range between high range and Auto range mode

/Phase

Set the frequency /set the phase angle

/Save

Recall the setup from internal memory/ Store the AC source settings in non-volatile memory.

/Menu

Switch the VFD display to be apparent power,peak current,active power and power factor/entry the menu setup

/Trigger

Enter key, to confirm the number entered and

operation/

trigger button, 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 direction keys, used to s et th e val ue, to adjust the cursor to the specified location

Up and down keys, used to turnover the item in the menu or increase (decrease) the output voltage or current values

2.4 VFD Indicator Description

VFD indicator function description as follow:

Char

Function description

Char

Function description

OFF

Output is off

Prot

OCP/OVP/OTP/OPP Protection

Rmt

The AC source is in remote mode

Auto

Auto change the voltage range

SRQ

Service request

*

Dimmer function is enabled

Error

The power supply has an error

Shift

Shift button is pressed

Trig

Awaiting for a trigger signal

Lock

Key operation is locked

2.5 Introduction of rear panel

 Rear panel of IT7321

Quick start

1. LAN communication interface

2. RS232 communication interface

3. USB communication interface

4. Cooling fans

5. AC power socket and F use

6. Output terminals

7. BNC terminal

 Rear panel of IT7322/IT7322H/IT7324/IT7324H

 Rear panel of IT7326/IT7326H

1. AC power input socket

Quick start

2. 110V/220V AC power selection switch

3. BNC terminal

4. Output terminals

5. System Bus

6. RS232 communication interface

7. LAN communication interface

8. USB communication interface

9. GPIB communication interface

10. Cooling fans

11. Fuses

2.6 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.

Selftest steps

Normal selftest procedures:

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

2. After selftest, VFD display the status as below:

During self-test of the power supply, if EEPROM has error, the “Error” indicator on the status bar lights up. You can check the self test error on the INFOR item in the MENU.

Exception handling

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

OFF

200.0V 0.0mA 60.0

0.00W PF=0.000 0.0S

Effective power

power factor

output time

Output state

effective

voltag

Current Frequency

Quick start

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 t he 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:（Taking an example of IT7321）：

1) Remove the AC pow er cor d and open the plast ic co ver locate d at the AC power inlet, then you will see the fuse.

2) Replace with a fuse of the same specification and install it.

Fuse specification list：

Model

Fuse specification

（220VAC）

Fuse specification

（110VAC）

IT7321

6.3A

10A

IT7322

15A

30A

IT7322H

15A

30A

IT7324

30A

60A

IT7324H

30A

60A

IT7326

60A Does not support

110VAC input

IT7326H

60A

Does not support

110VAC input

NOTE

Fuse of IT7326/IT7326H can unscrew directly by hand.For fuse position, see Intr oduction of Rear Panel for details. IT7322/IT7322H/IT7324/IT7324H fuse is inside the power supply.

2.7 Voltage Output Checkout

The following procedures check to ensure that the power supply develops its

Quick start

rated outputs and properly responds to operation from the front panel. The following steps verify basic voltage functions without load.

1. Turn on the power supply.

2.

Press and numeric key to set a effective voltage,press

to confirm.

3.

Press and numeric key to set the frequency，press to confirm.

4. Press to turn on the output。Note:When button is lit

which means the output is ON,Meanwhile indicator light of “OFF” on VFD will disappear.

5.

check the output waveform with a oscilloscope。set different voltage and check wether the disiplayed voltage is close to setting voltage.

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

value

EnterEnter

On/Off

Function and Features

Chapter3 Function and Features

This chapter introduce the basic operations of IT7300 series AC sourece.including the following subdivisions:

 Local/remote mode  Voltage setup  Frequency setup  Phase angle setup  Output on/off operation  Switch the VFD display items  Save/recall operation  Trigger operation  Menu operation  Switch output voltage range  Key lock function  BNC terminals function  3-phase AC power supply function

3.1 Switching of local/remote operation modes

Press the local button to change the AC source from remote to local operation.After you power on the AC source, it defaults in local mode, all buttons are enabled. While in remote mode, most buttons are disabled except Shift and Local keys.In addition, the mode modificaton will not effect the output parameters.

3.2 Voltage Setup

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

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

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

pressing and will enable you to adjust the setting voltage value.

 The second way: press , adjust cursor location through

button, adjust rotary knob to change the setting

voltage value.

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

set voltage value.

3.3 Frequency Setup

You can set frequency within the range 45Hz to 500Hz. When you press

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

are three ways to set frequency through front panel.

V-setV-set

0

9

Function and Features

 The first way: press ,adjust cursor locati on through

button, pressing and will enable you to increase or decrease the setting frequency value.

 The second way: press , adjust cursor location through

button, adjust rotary knob to change the setting

frequency value.

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

set frequency value

3.4 Phase Angle Setup

You can set the starting and stop phase angle within range of 0~360° by pressing (Shift)+ (Phase),VFD will display as below:

Press numeric keys to set the starting phase angle and press to confirm.Then the VFD will indicate next operation to set stop phase.

Press numeric keys to set the stop phase angle and press to confirm.

3.5 Output On/Off Operation

button is used to control the output state of AC source. When butt on is lit,.It indicates the output in on state.When output button is

dark which means the output is turned off. Note: make sure you have connected AC source and test DUT very well, then press

butt on to minimize shock hazard.

3.6 Switch the VFD display items

Press button to change the VFD display of bottom line. Default VFD display:effective voltage,effective current,frequence Active power,power fator,output time

Press to switch the display: effective voltage,effective current,frequence

0

9

Enter

On/Off

OFF

0.0V 0.0mA 50.0

Start Phase= 0.0° 0.6S

OFF

0.0V 0.0mA 50.0

Stop Phase= 0.0° 0.6S

OFF

0.0V 0.0mA 50.0

0.00W PF= 0.000 0.0S

Function and Features

apparent power,peak current,output time

Notes: The time shown on the VFD is the outpu t ti me of AC source. Press to

start the timing when power is on; press again to turn off power. The duration of power supply will be displayed on the VFD until the next power starts when the timer will reset. The timing is based on the decimal system: when the time reaches 999.9 s, the timing will be displayed in minutes (m); when the time reaches 999.9 m, the timing will be displayed in hours (h).

3.7 Save and recall operation

IT7300 series AC source provides10 non-volatile registers to save instrument settings for recall later.Each operating state includes preset voltage, preset frequency , s tartin g and stop phase an gle, output r ange level and dimmer phase angle.

Press(Shift) + (Save) key to recall /save settings.

Save operation:

To save the instrument’s settings to a register,press shift + (Save).You’ll be prompted for a register number.Enter a number between 0 and 9,then press the Enter key.The setting are saved.

Recall operation:

press button.You’ll be prompted for a register number.Enter a number between 0 and 9,then press the Enter key.The setting are recalled.

3.8 Trigger operation

IT7300 power supply can be triggered by means of manual trigger (MENU), command trigger (BUS) and external trigger (EXTERN). Manual trigger means to trigger by keys; command trigger means to trigger through the communication command when PC is used for control; and external trigger means to trigger by the BNC terminal at rear panel. To trigger operation by the panel, you need to set the trigger operation mode (TRIG) in the system menu to MENU. For details, see Section 3.9 Menu Operation.

During surge/trapped wave test under List operation, press (Shift) +

(Trigger) to trigger surge/trapped wave. When LIST file is running, the

trigger function key (Trigger) will flick.

On/Off

Recall

OFF

0.0V 0.0mA 50.0

0.00VA 0.00Apk 0.0S

OFF

2.0V 0.0mA 50.0

Save data bank=0 0.0S

OFF

2.0V 0.0mA 50.0

Recall data bank=0 0.0S

Function and Features

3.9 Menu Operation

3.9.1 Menu description

Press (Shift)+ （Menu）to enter menu.View the menu on the VFD,and use the direction keys or the knob to scroll through the

complete menu listed below.Press to enter the selected menu function,press to return to the previous menu.

MENU

System

Init INITIALIZE

Initialize sy st em menu

Esc

Cancel initialization

Enter

Confirm initialization

Power-On POWER-ON PARAMENT

Set the Power ON/OFF st ate after power up.

Sav0(Def)

The preset parameter stored in group 0

Rst

Factory Default

Power-Out POWER-OUT

Power on state set

Off(Def)

In the state of power off

Last

In the state of latest power -off state

Buzzer

BUZZER

Set buzzer state

On(Def)

Buzzer on

Off

Buzzer off

Trigger TRIGGER SOURCE

Trigger source selection.

Manual（Def)

Manual trigger

Bus

Bus trigger

Extern

External trigger

Communication COMMUNICATION

Communication interface and parameter setting

RS232(Def) RS232

Select RS232 interface

GPIB

Address

Available range from 0-31

4800, 8, N, 1

Set Baud rate,data bit,odd-even check,stop bit and address

9600 O 2

19200 E

38400

57600

115200

USB

Select USB interface

LAN LAN

Select LAN interface

Gateway=192.168.0.1 IP=192.168.0.125 Mask=255.255.255.0 Socket Port=30000

Set gateway, IP address, mask address and port.

Config

CONFIG

Config menu

Volt-Min

Voltage lower limit

Volt-Min=0.0V

Set Min. voltage

Volt-Max

Voltage upper limit

Volt-Max=300.0V

Set Max, voltage

Freq-Min

Frequency lower limit

Freq-Min=45.0Hz

Set frequency lower limit

Freq-Max

Frequency upper limit

Freq-Max=500.0Hz

Set frequency upper limit

Enter

ESC

Function and Features

Irms-Protect

Current RMS protect point

Irms-Protect=12.000A

Set current RMS protect point

Delay

Irms protection will be triggered in 1s

Immediate

Protection will be

triggered

immediately.

BNC-Set BNC PORT SETUP

I-Trigger

Input interface for external t r igger

I-Ri

Input interface for on/off c ont r ol

O-Sync

Output interface for AC phase synchronization signal

O-On

Output interface for on/off state interface

Ipeak-Protect

Current peak protect point

Ipeak-Protect=12.000A

Set Current peak protect point

Delay

Irms protection will be triggered in 1s

Immediate

Protection will be

triggered

immediately.

Dimmer

DIMMER

Phase dimmer

LeadingEdge

LeadingEdge Phase dimmer funct ion

TrailingEdge

TrailingEdge Phase dimmer function

Off

Disable Phase dimmer funct ion

List-Set

LIST START MODE

List start mode

On/Off

Press On/Off to start/stop running

Trigger

Press Shift + Enter (Trigger) to st ar t / stop running

3ø-Setup

A-Phase/ B-Phase / C-Phase

Set the power supply to A-Phase, B-Phase

or C-Phase of AC power supply , w it h difference of 120 degrees between any two

phases.

Disable/Enable

Turn on or turn off three-phase output

function. To achieve this function,user need t o

combine three units.

Meas- Curr-mode

Auto

Select automatic current measurement mode

Manual

Select manual current measurement mode

High

Select high-range

current

measurement

Middle

Select mid-range measurement

Low

Select low-range measurement

Info

PRODUCT INFO:

Power information

ERROR INFO: For look up error i nformation PRODUCT INFO:

IT73XX

Ver:0.01~0.01

Instrument type/Firmware v ersion

PRODUCT SN:

XXXXXXXXXX

XXXXXXXX

Instrument SN

RECORD INFO: Record information

Function and Features

Notes:

IT7321 has no GPIB and 3ø-Setup menu items.

3.9.2 Menu func tion System menu

Initialize the system menu

relative factory default setup as follows:

Power-On

Sav0

Power-Out

Off

Buzzer

On

Trigger

Manual

Communication

RS232

Power-On

This parameter determines the state of the AC source after power up.If you select “Rst”,the default output parameter settings will be active after power up.The default setup is 0V,50HZ, 0° and 0°.If you select “Sav0”,then the AC source will automatically recall the output parameters setting saved in 0 register

Note,please save these parameters in memory0 according to 3.7.

Power-Out

This parameter sets the output on/off state at power up.If you select “Last”,the AC source will save the output state prior to power down and revert to that state at power up.If you select “off”,the output state is always “off” when the power supply is turned on.The recommend setting is “OFF”.

Buzzer

This item can set the key sound state.If in ON mode,then when you press a button, the power supply will beep. If in OFF mode,the beeper will not make a sound.The default set is in ON mode.

Trigger source

This item can set the trigger signal to Keyboard trigger, Command trigger or External trigger during surge/trapped wave test under List operation. If Manual

is selected, the trigger signal is provided by (Shift) + (Trigger) on the panel; if Bus is selected, command trigger mode is used; if External trigger is selected, the trigger signal is provided by the trigger terminal (BNC) at the rear panel. BNC is a composite terminal. Y ou need to set its function to I-Trigger in the Menu. For details, refer to Section 3.13 BNC. Set Factory Setting to

Manual.

Setting of Communication Interface

This item can set communication modes of the power supply. IT7321/IT7322 Series has the following standard communication interfaces: LAN/USB /RS232; and IT7322H/IT7324/IT7324H/IT7326/IT7326H Series has the following standard communication interfaces: LAN/USB/RS232/GPIB. You can choose any one of them to communicate.

Function and Features

RS232 Baud rate: 4800/9600/19200/38400/57600/115200. Data bit: 8; check bit: NONE, ODD , EVEN; stop bit: 1~2;

LAN parameters include Gateway address (Gateway), IP address (IP), Mask address (Mask) and port (Socket Port).

When communication with computer, you need to select a communication interface and set its corresponding configurations so that the communication settings of the power supply are same with the PC configurations.

Config menu

The configuration menu is described below:

Volt-Min:

Voltage lower limit setting

Volt-Max:

Voltage upper limit setting

Freq-Min:

Frequency lower limit setting

Freq-Max:

Frequency upper limit setting

Irms-Protect:

Current RMS upper limit setting

BNC-Set:

Select BNC composite termi n al funct ion

Ipeak-Protect:

Peak Current upper limit setting

Dimmer:

Set phase dimmer

List-Set

Select List start mode

3ø-Setup

Set 3-phase AC power supply func ti on

Meas-Curr-mode

Switch current measurement mode

Switch current measurement mode (Meas-Curr-mode)

This item can set the current measurement mode of the power supply. IT7300 Series has two measurement modes: Auto and Manual. When Auto mode is chosen, the switchover among High range, Middle range and Low range will be performed by the instrument automatically. When Manual mode is chosen, the switchover among High range, Middle range and Low range will be performed by the user manually.

Check instrument information

1. Press (Shift)+ （Menu）to enter menu operation

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

press right direction key to select INFO,press to confirm

MENU System Config Info

3. VFD displays product model and firmware version number. Press right key to display product serial number.

PRODUCT INFO: IT73XX Ver:0.06~0.06

3.10 Function operation

3.10.1 Sweep

The Sweep function is used to test efficiency of switching power supply and capture the voltage and frequency at the maximum power point. The voltage and frequency of power may be altered in the form of step ladder by setting the

Enter

Function and Features

initial voltage, final voltage, step voltage, initial frequency, final frequency, step frequency and one-step time. The one-step time may be indicated in seconds, minutes or hours. A maximum of 10 files may be stored. As the test closes, voltage, frequency and current at the maximum power point may be displayed.

> Edit sweep file

NOTE

In the following operations, up and down keys are used to turn over steps, but not to increase or decrease value.When up arrow appears in the lower left corner,you can press the up key to ju mp to the p r ev i ous step. When down arrow appears in the lower right corner,press down key can entry the next step.

1.

Press (Shift)+ (Sweep)to enter menu operation

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press to confirm when Edit is shining.

SWEEP Edit Recall Disable

3.

Press number key or knob to set start voltage, press to confirm

START VOLTAGE Voltage= 0.0

V

4. Press numeric key or knob to set stop voltage, press to

confirm

END VOLTAGE Voltage= 0.0

V

5. Press numeric key or knob to set step voltage, press to

confirm

STE P VOLTAG Voltage=0.1

V

6. Press left and rig ht arr ow key s to select tim e unit sec ond, mi nut e an d

hour, press to confirm

TIME UNIT Second Minute Hour

7. Set step last time(0.1s~999.9s)，press to confirm

STEP TIME Time=2.0

S

8. Set start frequency(45Hz~500Hz), press to confirm

START FREQUENCY Frequency=50.0

Hz

9. Set stop frequency(45Hz~500Hz), press to confirm

END FREQUENCY Frequency=50.0

Hz

10. Set step frequency,press to confirm

STEP FREQUENCY Frequency=1.0

Hz

11. Press left and ri g ht ar row keys to select whether sa ve sweeping file,”

No” means do not saving ,” Yes” means saving.

SWEEP SAVE No Yes

12. Select save position(0~9), press to confirm,VFD display

Enter

Function and Features

“SaveData success! “ for 1 second.

SWEEP SAVE

Save data bank=0

13. Return to Previous Menu and press to exit menu.

SWEEP Edit Recall Disable

> Recall sweep file

1. Press multiple keys (Shift)+ (Sweep) to menu operation

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right arrow key then press key to confirm when Recall key is shining.

SWEEP Edit Recall Disable

3. Press numeric key to select needed recall file and press key to confirm. VFD display “Recall Data success! “ for 1 second.

RECALL SWEEP Recall Sweep=0

4. Return to Previous Menu and press to exit menu.

SWEEP Edit Recall Disable

> Set sweep test state and start test

1. Press multiple keys (Shift)+ (Sweep) to menu.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2. Press right arrow key to “Disable”, press down arrow key and

to infirm when “Disable” is shining. the words”Sweep” appears at the right bottom,which means the Sweep function is active.

SWEEP Edit Recall Disable

3.

Press key to start sweep test. key will shining during test and will stop after that with power off automatically.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 Sweep

After the test is finished, to exit Sweep function, you need to change the Sw eep test status to Disable. Operating steps:

1.

Press multiple key (Shift)+ (Sweep) to menu operation.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right arrow key to “Enable”, press down arrow key and

key to confirm and then exit sweep function(Sweep words

will disappeared on lower right of VFD display )

SWEEP

Enter

On/Off

EnterEnter

Enter

Function and Features

Edit Recall Enable

3.10.2 List operation

With List operation applied to the alternating power supply, alternating waveform sequences in various ranges may be output. The surge/trapped wave may be added as required to simulate fluctuation of netw ork voltage so as to evaluate the test result of the instrument under such situation.

Various alternating sequences with output varied may be formed by listing the voltage, frequency, slope, surge/trapped wave each step.

Surges wave

List sequences of IT7300 series can be stored into a non-volatile register,with a capacity of 100 steps.The user can edit up to 10 files. Following shows how to edit,recall and run a list file:

> Set Trigger Source

The surge/trapped wave test of LIST may be manually triggered to control the start time of the surge/trapped wave.

Press (Shift)+ (Menu) to entry the menu. Then the system will keep flickering------press to confirm.Press right key to select Trigger.When selected,trigger item will be twinkling.Press to confirm.Press right key to select Manual and press to confirm.

> Edit LIST File

1. Press (Shift)+ (List) button.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

select Edit,press to confirm.

LIST Edit Recall Disable

3.

Press numeric key,set the step counts(range:1~100),press to confirm.

STEP COUNT Step Count=0

4. Press numeric key,set number of cycles(range:1~1000),press

to confirm.

LIST REPEAT List Repeat=0

Enter

8

Enter

Function and Features

5. Set the first step voltage and press to confirm.

LIST VOLTAGE Step 0 Voltage=0.0

V

6. Set the first step freq u ency and press to confirm.

LIST FREQUENCY Step 0 Frequency=50.0

Hz

7. Set the slope(0.1~999.9),press to confirm.

LIST SLOPE Step 0 Slope=0.0

S

8. Set the time unit:S,min,hour,press to confirm.

DWELL UNIT Second Minute Hour

9. Set delay time(0.1~999.9),press to confirm.

LIST DWELL Step 0 Dwell=0.0

S

10. Disable or enable the surges or trap state,press to confirm.If select Disable,then do nothing for ste p11-step14.

SD STATE Disable Enable

11.

Press left/right key to set whether create surges/wave traps continouly.If select Yes,power supply will create sur ges/w av e tr aps in

at intervals of 100ms.Press to confirm.

SD CONTINUE No Yes

12.

Press numeric keys to set voltage of surges/wave traps,press

to confirm.If set voltage is higher than current working

voltage,then it is surges,or it is wave traps.

SD VOLTAGE Step 0 Voltage=0.0

V

13. Set the starting time of surges/wavetraps,press to

confirm.With the restriction of frequency,the max settable time is 25ms.

SD SITE Step 0 Site= 0

ms

14. Set the duration time of surges/wave traps.Press to confirm.

SD TIME Step 0 Time=0

ms

15. Repeat step4-13.

LIST VOLTAGE Step 1 Voltage=0

V

16. NO:Do not save the list file,after power off the unit,current file will

lose.Yes:Save list file to assigned memory room for quickly recall at any time.

LIST SAVE No Yes

17. Store file to specified storage space(0~9 groups),press to

confirm.VFD will display “Save data success!”

LIST SAVE Save data bank=0

Enter

Function and Features

> Set LIST State

1. Press (Shift)+ (List) to entry the List menu.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right key to select Disable,when it flicker,press up/down key to select Enable,and pres s to confirm.

LIST Edit Recall Disable

3.

Now the List mode is enabled.Escape menu,the front panel will display “LIST 0”.

LIST Edit Recall Enable

4.

List mode is enabled

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 List 0

> Run LIST File

When LIST is in Enable status, exit menu.  If List-Set under Config menu is set to On/Off: Press key to t ur n o n

power supply output, and LIST file starts running. Press to stop running.

 If List-Set under Config menu is set to Trigger: Press (Shift)+

(Trigger) key to trigger and the LIST file start s running. Press (Shift)+

(Trigger) again to stop running.

List running flag: When List is running, is flicking, and LIST step displayed at the right bottom of VFD will also change by setting as time elapses.

> Quit LIST Mode

1. Press (Shift)+ (List) to entry the List menu.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right key to select Enable,when it flicker,press up/down key to select Disable,and press to confirm. indicating List mode is

disabled.

LIST Edit Recall Enable

3.

Press to quit the List menu.

LIST Edit Recall Disable

> Recall LIST Mode

If several List files are edited, you can recall the Listfile to be tested by Recall. When LIST is in Enable status, exit the menu to perform test.

1.

Press (Shift)+ (List)button to entry the List menu

8

Enter

8

Enter

8

Function and Features

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right key to select Recall,when it flicker,press to confirm.

LIST Edit Recall Disable

3. Press the file number to recall the assigned file.Press to

confirm.when recall successfully,the VFD will display”Recall data success!”.

RECALL LIST Recall List=0

4. Return to Previous Menu and press to exit menu.

LIST Edit Recall Disable

5.

After recall,please enable the LIST state,then quit the menu and press ON/OFF to trigger the execution.

3.10.3 Dimmer

The leading and lagg ing edge of the w av efor m can by conceal ed a nd th e phase angle set with Dimmer function to regulate the active power, thus adjusting the lighting intensity.

Dimmer of leading edge

Dimmer of lagging edg

> Active dimmer function, set LeadingEdge /LaggingEdge

1. Press multiple keys (Shift)+ （Menu）to menu

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right arrow key to select “ Config”, press to confirm when “Config” is shining

MENU System Config Info

Enter

Function and Features

3. Press right arrow key to “Dimmer” press to confirm when

“Dimmer” is shining.

CONFIG Volt-MinVolt-Max >

4. Select “LeadingEdge” or “LaggingEdge” to active the function. Press

key to confirm when it is shining. Shining”*” indicate on

VFD means dimmer function is in used, conversely,”*” disappeared.

DIMMER LeadingEdge TrailingEdge Off

5.

Press to quit the menu.

DIMMER LeadingEdge TrailingEdge Off

> Set phase angle and start test

1. Press compound key (Shift)+ （*Dimmer）and enter menu

operation

Off *

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2. Press numeric key to set angle, press to confirm . Also you can adjust angle by kn ob to view real-t ime waveform c hanges alo ng .

Off *

0.0V 0.0mA 50.0 Dimmer=30.0° 0.1S

3.

Press and numeric key to set voltage based on requirement. Press to confirm.

Off *

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

4. Confirm that both List and Sweep are in Disable status (VFD appears no words of List or Sweep). Press to turn on Output.

The power supply starts outputting phase dimmer wave, and the “*” on VFD flicks. Press again to stop output.

Off *

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

3.11 Output range

IT7300 series AC source will allow switchover between High range and Auto range. Take IT7321 as example, the voltage, current and apparent power at the High range is 300V/1.5A/300V A; the voltage, current and apparent pow er at the Low range is 150V/3A/300VA. Auto range refers to auto switchover mode between High range and Low range.

You can choose the range according to actual test requirements. When Auto range is chosen, the switchover between High range and Low range will be performed by the instrument automatically, thus sparing complicated operations such as manual setting.

Switch High range and Auto range: Press (Shift) and (High/Auto) together to switch between High

Enter

9

Enter

Function and Features

range and Auto range. When High range is chosen, press the (Shift) and

(High/Auto) together to switch to Auto range. The indicator “Auto” on

the VFD will be on.

Note

There i s a temporary OFF to the AC source during the switchover of range.

3.12 Key lock

The front panel keys can be locked to prevent unwanted changes to output settings and AC source c onfigurations.Follow the steps below to enable/disable key lock .

Press ( (Shift)+ （Lock）button to set the key lock state.If keyboard has been locked,the indicator light ”Lock” will display on the VFD .In addition,when keyboard are locked,all buttons can’t be used except ON/OFF

key Shift key and Select key . Press (Shift)+ （Lock） once again will relieve key lock function.

3.13 BNC

There is a composite terminal at the rear panel of the AC source(see description of rear panel), which can be used as:

Input signal:

I-Trigger

Serve as input signal by external trigger. Connect the positive and negative end of the terminal to generate a

trigger signal.

To use this function, you need to set the

Tri

gger item under System menu to Extern (External

Trigger).

I-Ri

Serve

as the control signal for On/Off. When the positive

and negative end of the terminal is in short circuit, the

status of AC source is OFF

; when the circuit is open, the

status of AC source is ON. Note: Only when the front panel and BNC are set to On at

the same time, the power supply outputs. Otherwise, the

power supply is OFF.

Output signal:

O-Sync

as synchronizing signal of alternating phase:

On/Off

OFF

0.0V 0.0mA 50.0

0.00W PF=0.000 Lock

Function and Features

O-On

as status signal for On/Off. When the status of AC source is ON, the terminal will output high level; when the status of power supply is OFF, the terminal will output low level

Before using BNC terminal,you need to define its function firstly by following steps below:

1. Press multiple key (Shift)+ （Menu）to menu operation.

Off

0.0V 0.0mA 50.0

0.00W PF=0.000 0.0S

2.

Press right arrow key and select “config”, press key when “Config” is shining.

MENU System Config Info

3. Press right arrow key to BNC-Set and press key when

“BNC-Set” is shining.

CONFIG V-Min V-Max >

4.

Press left and right arrow keys to select interface function and press

. Press ESC key to exit menu.

BNC PORT SETUP I-Trigger I-Ri O-Sync O-On >

3.14 3ø-Setup

IT7300 series(except IT7321 model) support 3-phase output via three units.The three units need to be connected together via SYSTEM BUS. To achieve 3-phase output function of AC power supply, take IT7324 as example for description.3-phase output includes two connection types of “Y” or “Delta”.

 Y type connection：

Enter

Function and Features

 Delta connection：

SYSTEM BUS：User need to connect three units together via a straight network cable.Please see figure above.

Select one connection method as shown above. After wiring, set 3 power supplies to Phase A, Pha se B and P ha se C respe ctively. Phase A power supply will automatically search for Phase B and Phase C power supplies. Detailed operation steps are shown below:

Set Phase A

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

Function and Features

2. press right-key to select CONFIG,then press button to

confirm.

3. Press left and right arrow keys to select 3ø-Setup. Press to

enter configuration of 3-phase AC power supply function. Interface displays as below:

Two parameters need to be set from the menu to enable this function: A-Phase/ B-Phase / C-Phase

Configure the phase line of each unit

Disable/Enable Turn on or turn off 3-phase functi on

Press right key to select item to be set and press Up/Down key to select.

4. After setting of Phase A, press [Esc] to return to the Main Interface,

which displays as follows:

Set Phase B/C

Follow same setting steps 1-3 of Phase A to set Phase B/C. After setting of Phase B/C, press [Esc] to return to the Main Interface. Tak e Main Interface of Phase B as example, as shown below.

After setting of Phases B and C, the main interface of Phase A power supply displays as follows:

Enter

OFF

3ø-Setup

A-Phase Disable

OFF Auto

0.0V 0.0mA 50.0

0.00W 3ø-B,C Loss 3ø-A

OFF Auto

0.0V 0.0mA 50.0

0.00W PF=0.000 3ø-B

OFF Auto

0.0V 0.0mA 50.0

0.00W 3ø-B,C Loss 3ø-A

Specification

Chapter4 Specification

This chapter will introduce the main technical parameters of IT7300, such as rated voltage/current/power and so on. Besides, this part will introduce the working environment and storage temperature.

4.1 Specification

Model IT7321

INPUT

Phase 1

Voltage

220Vac±10% or 110Vac±10%

Frequency 47-63Hz

Max.Current 6.3A(220Vac) or 10A(110Vac)

Power Factor 0.5(typical)

AC OUTPUT

Max.Power 300VA

Max Current(rms)

0-150V 3A

0-300V 1.5A

Max Current(peak)

0-150V 9A

0-300V 4.5A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤0.5% at 45-500Hz (Resistive Load)

Crest Factor 3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range

0-300V High, 150/300V Auto

Resolution

0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±

(0.04% per degree from 25℃)

Frequency

Range

45-500Hz

Resolution

0.1Hz at 45-99.9Hz 1Hz at 100-500Hz

Accuracy

0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range

0-300V

Specification

Resolution

0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:3.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+40mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range

0-12A

Resolution

0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ) M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+4W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory 10 memories Sync Output Signal Output Signal 5V,BNC type Interface(Option) LAN,USB,RS232 Operation Environment

0-40℃/20-80%RH

Dimension

1/2

19" 2U

Weight

10Kg

Model IT7322

INPUT

Phase 1

Voltage

220Vac±10% or 110Vac±10%

Frequency 47-63Hz

Max.Current 15A(220Vac) or 30A(110Vac)

Power Factor 0.7(typical)

AC OUTPUT

Specification

Max.Power 750VA

Max Current(rms)

0-150V 6A

0-300V 3A

Max Current(peak)

0-150V 18A

0-300V 9A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤0.5% at 45-500Hz (Resistive Load)

Crest Factor 3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range

0-300V High, 150/300V Auto

Resolution 0.1V Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Frequency

Range

45-500Hz

Resolution 0.1Hz at 45-99.9Hz 1Hz at 100-500Hz Accuracy 0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range 0-300V Resolution 0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:6.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+60mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range 0-18A

Resolution

0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W

Specification

M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ) M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+6W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory 10 memories Sync Output Signal Output Signal 5V,BNC type Interface(Option) LAN,USB,RS232,GPIB Operation Environment

0-40℃/20-80%RH

Dimension

19" 3U

Weight

37Kg

Model IT7322H

INPUT

Phase 1

Voltage

220Vac±10% or 110Vac±10%

Frequency 47-63Hz

Max.Current 20A(220Vac) or 40A(110Vac)

Power Factor 0.7(typical)

AC OUTPUT

Max.Power 750VA

Max Current(rms)

0-250V 3A

0-500V 1.5A

Max Current(peak)

0-250V 9A

0-500V 4.5A

Phase

1Φ/3W

Total Harmonic Distortion(T.H.D)

≤1% at 45-500Hz (Resistive Load)

Crest Factor

≤3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range

0-500V High, 250/500V Auto

Resolution

0.1V

Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Frequency

Range 45-500Hz Resolution 0.1Hz at 45-99.9Hz 1Hz at 100-500Hz

Specification

Accuracy

0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range

0-500V

Resolution

0.1V

Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:3.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+40mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range

0-9A

Resolution

0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ) M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+6W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory

10 memories

Sync Output Signal Output Signal 5V,BNC type Interface(Option) LAN,USB,RS232,GPIB Operation Environment

0-40℃/20-80%RH

Dimension

19" 3U

Weight

37Kg

Model IT7324

INPUT

Phase 1

Voltage

220Vac±10% or 110Vac±10%

Specification

Frequency 47-63Hz

Max.Current 30A(220Vac) or 60A(110Vac)

Power Factor 0.7(typical)

AC OUTPUT

Max.Power 1500VA

Max Current(rms)

0-150V 12A

0-300V 6A

Max Current(peak)

0-150V 36A

0-300V 18A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤0.5% at 45-500Hz (Resistive Load)

Crest Factor 3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range

0-300V High, 150/300V Auto

Resolution

0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Frequency

Range 45-500Hz

Resolution

0.1Hz at 45-99.9Hz 1Hz at 100-500Hz

Accuracy

0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range

0-300V

Resolution

0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:12.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+80mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range

0-48A

Resolution

0.01A

Specification

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W

M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ)

M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+10W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory

10 memories

Sync Output Signal

Output Signal 5V,BNC type

Interface(Option)

LAN,USB,RS232,GPIB

Operation Environment

0-40℃/20-80%RH

Dimension 19" 3U Weight 48Kg

Model IT7324H

INPUT

Phase 1

Voltage

220Vac±10% or 110Vac±10%

Frequency 47-63Hz

Max.Current 30A(220Vac) or 60A(110Vac)

Power Factor 0.7(typical)

AC OUTPUT

Max.Power 1500VA

Max Current(rms)

0-250V 6A

0-500V 3A

Max Current(peak)

0-250V 18A

0-500V 9A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤1% at 45-500Hz (Resistive Load)

Crest Factor 3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage Range 0-500V High, 250/500V Auto

Specification

Resolution

0.1V

Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Frequency

Range 45-500Hz Resolution 0.1Hz at 45-99.9Hz 1Hz at 100-500Hz Accuracy 0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range 0-500V Resolution 0.1V

Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:6.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+60mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range 0-24A Resolution 0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W

M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ)

M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+10W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory

10 memories

Sync Output Signal

Output Signal 5V,BNC type

Interface(Option)

LAN,USB,RS232,GPIB

Operation Environment

0-40℃/20-80%RH

Dimension 19" 3U Weight 37Kg

Specification

Model IT7326

INPUT

Phase 1

Voltage

220Vac±10%

Frequency 47-63Hz

Max.Current 60A

Power Factor 0.7(typical)

AC OUTPUT

Max.Power 3000VA

Max Current(rms)

0-150V 24A

0-300V 12A

Max Current(peak)

0-150V 72A

0-300V 36A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤0.5% at 45-500Hz (Resistive Load)

Crest Factor 3

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range

0-300V High, 150/300V Auto

Resolution 0.1V Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25 ℃)

Frequency

Range

45-500Hz

Resolution

0.1Hz at 45-99.9Hz 1Hz at 100-500Hz

Accuracy

0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range

0-300V

Resolution

0.1V

Accuracy

±(0.2%+0.6V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:24.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Specification

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+0.1A)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range 0-96A

Resolution

0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W

M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ) M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+15W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory

10 memories

Sync Output Signal

Output Signal 5V,BNC type

Interface(Option) LAN,USB,RS232,GPIB Operation Environment

0-40℃/20-80%RH

Dimension 19" 6U Weight 103Kg

Model IT7326H

INPUT

Phase 1

Voltage

220Vac±10%

Frequency 47-63Hz

Max.Current 60A

Power Factor 0.7(typical)

AC OUTPUT

Max.Power 3000VA

Max Current(rms)

0-250V 12A

0-500V 6A

Max Current(peak)

0-250V 36A

0-500V 18A

Phase

1Φ/2W

Total Harmonic Distortion(T.H.D)

≤1% at 45-500Hz (Resistive Load)

Crest Factor 3

Specification

Line Regulation

0.1% max for a ±10% line change

Load Regulation

≤0.5%FS(Resistive Load)

Response Time <100uS

SETTING

Voltage

Range 0-500V High, 250/500V Auto Resolution 0.1V Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Frequency

Range

45-500Hz

Resolution

0.1Hz at 45-99.9Hz 1Hz at 100-500Hz

Accuracy

0.1Hz

Phase Angle

Range

0-360°

Resolution

0.1°

Accuracy

±1°(45-65Hz)

MEASUREMENT

Voltage(rms)

Range

0-500V

Resolution

0.1V

Accuracy

±(0.2%+1.2V)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(rms)

Range

L:120.0mA *

M:1.200A *

H:12.00A *

Resolution

L:0.1mA

M:1mA

H:10mA

Accuracy

L:±(0.2%+0.6mA)

M:±(0.2%+6mA)

H:±(0.2%+60mA)

Temp. coefficient

±(0.04% per degree from 25℃)

Current(peak)

Range

0-48A

Resolution 0.01A

Accuracy

±(1%+0.36A)

Temp. coefficient

±(0.05% per degree from 25℃)

Power

Resolution

L:0.01W

M:0.1W

H:1W

Accuracy

L:±(0.2%+0.2W) (47HZ-65HZ) M:±(0.2%+2W) (47HZ-65HZ)

H:±(0.2%+10W) (47HZ-65HZ)

Temp. coefficient

±(0.05% per degree from 25℃)

GENERAL

Memory

10 memories

Sync Output Signal

Output Signal 5V,BNC type

Interface(Option)

LAN,USB,RS232,GPIB

Specification

Operation Environment

0-40℃/20-80%RH

Dimension

19" 6U

Weight

103Kg

*Description about the switch of current range: When switch from low to high level(L to M,M to H) happened at the condition of Ipeak＞300%(Full

rms),When Ipeak>300%(Full rms),the current switch from low range to h igh range(L to M,M to H). When Ipeak<20%(Full rms),the current switch from high range to low range(M to L) . When Ipeak<80%(3Arms),the current switch from high range to Middle range(H to M). The above specifications may be subject to change without prior not ic e.

4.2 Supplement al characteristics

 State storage capacity

10sets

 Recommended calibration frequency

once a year

 Cooling style

fans

Remote Control

Chapter5 Remote Co ntrol

IT7300 series AC source has four standard communication interface: LAN RS232, USB, GPIB. IT7321 has standard communication interface LAN/USB/RS232 You can choose any one of them to communicate with PC.

5.1 RS232 interface

There is a DB9 connector at the rear of the power supply, when connect to computer, you need to s el ect a cable w ith COM port on both side; To active you

need to press (Shift)+ (Menu) button to enable the settings in menu to be the same with the PC communication configuration. You could do the secondary development with all SCPI commands.

Note

The RS232 settings must match the settings in front panel system information. If any change, please press (Shift)+ (Menu)key to modify the menu:

SYST SET\COMM.

RS232 data format

RS232 data is a 10-bit word with one start bit and one stop bit.The number of start bit is not progr ammable.Stop bit is selectable between 1&2.Besides,you

can set the parity bit in the menu using the front panel (Shift)+ key.

Parity options are stored in a non-volatile memory.

Baudrate

The front panel (Shift)+ (Menu) button allows the user to set baud rate which is stored in the non-volatile memory: 4800,9600,19200 38400,57600,115200

RS-232 connection

Adopt the RS232 cable with DB-9 interface because the serial port of RS232 can be connected with that of the controller (e.g. PC). The modulating cable of the air-conditioner is not recommended. The pins of plug are shown as the following table. If your computer is provided with a RS232 interface with DB-25 plug, a cable and a adapter with DB-25 plug (one end) and DB-9 plug (th e other end) are required (not the modulating cable of the air-conditioner)

RS-232 plug pins

Pin number

Description

1

No connection

2

TXD, transfer date

3

RXD, receive data

4

No connection

5

GND, ground

6

No connection

7

CTS, clear transfer

Remote Control

8

RTS, ready to transfer

9

No connection

RS-232 Troubleshooting

In case of connection failure of RS232, perform following check:  Check if the computer and power supply are provided with same

Baud rate, parity check bit, data bit and flow control. The power supply shall be configured with one start bit (fixed) and one or two stop bits.

 Just as described in the RS232 connector, appropriate interface

cable or adapter shall be adopted. Notes: even if the cable is equipped with right plug, internal wiring may be incorrect.

 The interface cabl e must be connected to the right serial por t ( C OM 1

and COM2) of the computer.

Communication Setup

Please ensure the PC and power supply have the same configuration in the following items.

baudrate: 9600(4800, 9600, 19200, 38400, 57600, 115200).You could enter the system menu to set the baudrate.

Data bit: 8 Stop bit: 1 Parity bit: (none, even, odd)

EVEN 8 data bits have even parity ODD 8 data bits have odd parity NONE 8 data bits have no parity

Native machine address: (0 ~31, factory default is 0)

Parity=

None

Start Bit 8 Data Bits Stop Bit

5.2 USB Interface

Use a cable with two USB ports to connect power supply and PC. You can program through USB interface to achieve all functions of power supply.

The functions of USB488 interface are as follows:

 Interface is 488.2 USB488 interface  Receive the following request: REN_CONTROL, GO_TO_LOCAL, and

LOCAL_LOCKOUT

 When the interface receives MsgID = TRIGGER USBTMC command, it w ill

transmit the TRIGGER command to the function layer

The functions of power supply’s USB488 are as follows:

 receive all SCPI commands  device is SR1 enabled  device is RL1 enabled

Remote Control

 device is DT1 enabled

5.3 LAN Interface

Press (Shift) + (Menu) on the front panel together to access the menu. Select LAN in the Communication from System and then configure Gateway, IP, Mask and SocketPort in the LAN option. Connect the LAN interface of power supply to the computer with a reticle (crossed).

5.4 GPIB Interface

Use a IEEE488 bus to connect GPIB interfaces of power supply and PC. Please ensure that the screws have been screwed down in order to have a full

connection. Then press + (Menu) to enter the system menu to set the address. The address range of power supply is 0-31.After you set the

address, please press button to confirm, GPIB address is saved in nonvolatile memory.

Contact US

Thank you for purchasing ITECH products. If you have any doubt about this product, please contact us as follow.

1. Please refer to the CD-ROM of related user’s manual in package.

2.

Visit ITECH website www.itechate.com .

3. Select the most convenient contact for further consultation.

ITech IT7321, IT7322H, IT7324, IT7322, IT7324H User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual