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IT7627
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ITech IT7622, IT7628, IT7624, IT7626, IT7627 User Manual

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Programmable AC Power
Supply
Series IT7600 User’s Manual
Model: IT7622/IT7624/IT7626/IT7627/IT7628 Version: V2.2
Notices
© Itech Electronic, Co., Ltd. 2017 No part of this manual may be reproduced in any form or by any means ( including electronic storage a nd retrieval or translation into a fore ign language) without prior permission and written consent from Itech Electronic, Co., Ltd. as governed by international copyright laws.
Manual Part Number
IT7600-402573
Revision
2nd Edition: May 17,2017 Itech Electronic, Co., Ltd.
Trademarks
Pentium is U.S. registered trademarks of Intel Corporation.
Microsoft, Visual Studio, Windows and MS Windows are registered tradem arks of Microsoft Corporation in the United States and/or other countries and regions.
Warranty
The materials contained in this document are provided “as is”, and is subject to change, without prior notice, in future editions. Further, to the maximum extent permitted by applicable laws, ITECH disclaims all warrants, either express or implied, with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. ITECH s hall not be held liable for errors or for incidental or indirect damages in connection with the furnishing, use or application of this document or of any information contained herein. Should ITECH and the user enter into a separate written agreement with warranty terms covering the materials in this document that conflict with these terms, the warranty terms in the separate agreement shall prevail.
Technology Licenses
The hardware and/or software described herein are furni shed under a license and may be used or cop ied only in accordance with the terms of such license.
Safety Not ices
A CAUTION sign denotes a hazard. It calls attention to an operating procedure or practice that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.
A WARNING sign denotes a hazard.
It calls attention to an operating procedure or practice that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.
Restricted Rights Legend
Restricted permissions of the U.S. government. Permissions for software and technical data which are authorized to the U.S. Government only include those for custom provision to end users. ITECH provides this customary commercial license in software and technical data pursuant to FAR 12.211 ( Technical Data) and 12.212 ( Computer Software) and, for the Department of Defense, DFARS
252.227-7015 ( Technical Data – Commercial Items) and DFARS
227.7202-3 ( Rights in Commercial Computer Software or Computer Software Documentation).
NOTE A NOTE sign denotes important hint. It calls attention to tips or supplementary information that is essential for users to refer to.
IT7600 U ser Manual
Direct current
ON ( power)
Alternating current
OFF ( power)
Both direct and alternating current
Power-on state
Chassis (earth ground)
Power-off stat e
Earth ( ground) terminal
Reference t erminal
Caution
Positive terminal
Warning ( refer to this manual for specific Warning or Caution information)
Negati ve terminal

Quality Certification and Assurance

We certify that IT7600 series power supply meets all the published specifications at time of shipment from the factory.

Warranty

ITECH warrants that the product will be free from defects in material and workmanship under normal use for a period of one ( 1) year from the date of delivery ( except those described i n the Limitation of Warr anty below ).
For warr anty service or repair , the product must be returned to a service center designate d by ITECH.
The product returned to ITECH for warranty service must be shipped
PREPAID. And IT E CH will pay for return of the pr oduct to custom er.
If the product is returned to ITECH for warranty service from overseas, all
the freights, duties and other taxes shall be on the account of custo m er.

Limitation of Warranty

This Warranty will be rendered invalid if the product is: Damaged resulting from customer-wired circuits or customer-supplied
parts or accessories;
Modified or repaired by customer without authori zation; Damaged resulting from customer-wired circuits or use in an environment
not desi gnated by us;
The product model or serial number is altered, deleted, removed or made
illegible by customer;
Damaged as a result of accidents, including but not limited to lightning,
moistur e, fire, improper use or negligence.

Safety Symbols

symbol.
Copyright ©ITECH Electronic Co., Ltd. i
IT7600 U ser Manual
A chassis terminal
-
-

Safety Precautions

The following safety precautions must be observed during all phases of operation of t hi s i nst rument . Fai l ur e to com pl y wit h these precauti ons or sp eci fic 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 custo m er’ s failure to co m ply with these precauti ons.
Do not use the instrument if it is damaged. Before operation, check
the casing t o see whether i t cracks. Do not operate the instrument i n the presence of inflammable gasses, vapors or dusts.
The power supply is provided with a power line during delivery and
should be con nected to junction box. Before operation, be sure that the power sup ply is well grounded. Make sure t o use the power cord supplied by ITECH.
Check all marks on the i nstrument before connecti ng 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 pow er cord must be carry out the ful l rated short-ci rcuit output current of the power securely.
Ensure the volt age fl uct uati on of m ai ns suppl y is l ess than 10% of the
working voltage range in order to reduce risks of fire and electric shock.
Do not install alter native part s on the instrument or perform any
unauthorized modification.
Do not use the instr ument if th e detachable cov er is removed or
loosen.
To prevent the possi bility of accidental injuri es, be sure to use the
power adapter supplied by the manufacturer only.
Never use the inst rument with a life-support sy stem or any other
equipment subject to safety requirements.
Failure to use the instrument as d irected by the manufacturer may
render its protective features v oid.
Always clean the casing with a dry cloth. Do not clean the internals. Make sure the vent hole is always unblocked.

Environmental Conditions

The instrument is designed for indoor use and an area with low condensation. The table below shows the general environmental requirements for the instrument.
Copyright ©ITECH Electronic Co., Ltd. ii
IT7600 U ser Manual
Environmental Conditions
Requirements
Operating temperature
Operating humidity
20%～80%( non-condensation)
Storage temperature
Altitude
Operating up to 2,000 m eters
Installatio n category
II
Pollution degree
Pollution degree 2
The CE mark indicates that the product complies with all the relevant
year ( if any) affixed refers to the year when the design was approved.
The instrument complies with the WEEE Directive ( 2002/96/EC)
product label indicates that you must not discard the electrical/electronic
This symbol indicates the time period during which no hazardous or toxic substances are expected to leak or
expected useful life of the product is 10 years. The product can be used
Friendly Use Period ( EFUP). Upon expiration of the EFUP, the product must be immediately r ecycled.
( WEEE) Directive
This pr oduct complies with the WEEE Di rect ive ( 2002/96/EC) marking r equirement. This affix product label indicat es that you
household waste.
Product Cat egory With referen ce t o the equipment classi fications described in the
ITECH office.
0°C～40°C
-10°C～70 °C
Note
To make accurate measurements, allow the instrument to warm up for 30 min.

Regulatory Markings

European l egal di rect i ves. T he specific
marking requirement. This affix
product in domestic hou sehold waste.
deteriorate during normal use. The
safely during the 10-year Environment

Waste Electrical and Electronic Equiment ( WEEE) Directive

2002/96/E C Waste Electrical and Electronic Equipment
must not discard the electrical/electronic pr oduct in domestic
Copyright ©ITECH Electronic Co., Ltd. iii
Annex 1 of t he WEEE Directive, this inst rument is classified as a “Monit oring and Control Instrument ”. To return thi s unwanted instrument, contact your nearest
IT7600 U ser Manual
IEC 61326-1:2012/ EN 61326-1:2013 ¹²³
Reference St andards
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

Compliance Information

Complies with the essential requirements of the following applicable European Directives, and carries the CE marking accordingly:
Electroma gnetic Compat ibility (EMC) Directive 2014/30/EU Low-Voltage Directive (Safety) 2014/35/ EU
Conforms with the following product st andards:
EMC Standard
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
Copyright ©ITECH Electronic Co., Ltd. iv
IT7600 U ser Manual
Content
QUALITY CERTIFICATION AND ASSURANCE ........................................................................................................................ I
WARRANTY ............................................................................................................................................................... I
LIMITATION OF WARRANTY ........................................................................................................................................... I
SAFETY SYMBOLS ........................................................................................................................................................ I
SAFETY PRECAUTIONS .................................................................................................................................................. II
ENVIRONMENTAL CONDITIONS ....................................................................................................................................... II
REGULATORY MARKINGS ............................................................................................................................................. III
WASTE ELECTRICAL AND ELECTRONIC EQUIMENT ( WEEE) DIRECTIVE ................................................................................... III
COMPLIANCE INFORMATION ......................................................................................................................................... IV
CHAPTER1 ACCEPTANCE AND INSTALLATION ..................................................................................................... 7
1.1 CONFIRM PACKAGE CONTENTS ................................................................................................................................. 7
1.2 INSTRUMENT SIZE INTRODUCTION ............................................................................................................................ 8
1.3 CONNECTING THE POWE R CORD ............................................................................................................................ 14
1.4 CONNECTING TEST LINES ( OPTIONAL) .................................................................................................................... 17
CHAPTER2 QUICK START .................................................................................................................................. 20
2.1 BRIEF INTRODUCTION.......................................................................................................................................... 20
2.2 FRONT PANEL INTRODUCTION ............................................................................................................................... 20
2.3 KEY INTRODUCTION ............................................................................................................................................ 21
2.4 INTRODUCTION TO INFORMATION ON THE INTER FACE.................................................................................................. 24
2.5 INTRODUCTION TO INTERFACE SYMBOLS .................................................................................................................. 24
2.6 REAR PANEL INTRODUCTION ................................................................................................................................. 25
2.7 POWER-ON SELFTEST .......................................................................................................................................... 26
CHAPTER3 BASIC OPERATIONS ........................................................................................................................ 30
3.1 OUTPUT ON/OFF OPERAT ION ............................................................................................................................... 30
3.2 AC OUTPUT MODE ............................................................................................................................................ 30
3.3 DC OUTPUT MODE ............................................................................................................................................ 31
3.4 ACDC OUTPUT MODE ........................................................................................................................................ 31
3.5 SWITCHING OUTPUT RANGE ................................................................................................................................. 32
3.6 WAVEF OR M SELECTION ....................................................................................................................................... 32
3.7 SWEEP FUNCTION............................................................................................................................................... 32
3.8 KEY LOCK FUNCTION ........................................................................................................................................... 33
3.9 SWITCHING LOCAL/REMOTE MODE ........................................................................................................................ 34
3.10 MENU OP E RAT IO N ........................................................................................................................................... 34
3.11 CONFIGURATION SAVE /RECALL FUNCTION ............................................................................................................. 37
3.12 PROTECTION FUNCTION ..................................................................................................................................... 37
3.13 DATA RECORDING FUNCTION .............................................................................................................................. 39
3.14 SCREEN CAPTURE FUNCTION............................................................................................................................... 39
3.15 TRIGGER FUNCTION .......................................................................................................................................... 39
3.16 EXTERNAL SIMULATION TEST FUNCTION ................................................................................................................ 40
3.17 REMOTE MEASUREMENT FUNCTION ..................................................................................................................... 40
3.18 THREE-PHASE PARALLEL SETUP............................................................................................................................. 41
CHAPTER4 MEASUREMENT FUNCTIONS .......................................................................................................... 46
4.1 INTERFACE INTRODUCTION ................................................................................................................................... 46
4.2 SETUP INTERFACE ............................................................................................................................................... 46
CHAPTER5 OSCILLOSCOPE FUNCTIONS ............................................................................................................ 48
5.1 INTERFACE INTRODUCTION ................................................................................................................................... 48
5.2 ADJUSTMENT OF MEASURING PARAMETERS .............................................................................................................. 51
5.3 SETTING OF TRIGGER CONFIGURATION .................................................................................................................... 52
CHAPTER6 HARMONIC FUNCTION ................................................................................................................... 53
6.1 INTERFACE INTRODUCTION ................................................................................................................................... 53
6.2 DISTORTION FACTOR CALCULATION FORMULA ............................................................................................................ 55
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IT7600 U ser Manual
CHAPTER7 VECTOR FUNCTION......................................................................................................................... 57
CHAPTER8 CONFIGURATION OF ANY WAVEFORM ........................................................................................... 59
8.1 LIST FUNCTION .................................................................................................................................................. 59
8.2 SETTING OF SURGE/TRAPPED CONFIGURATION .......................................................................................................... 68
8.3 SELF-DEFINED WAVE FORM FUNCTION ..................................................................................................................... 70
8.4 THD WAVE ...................................................................................................................................................... 72
CHAPTER9 TECHNICAL SPECIFICATIONS ........................................................................................................... 75
9.1 MAIN TECHNICAL PARAMETERS .............................................................................................................................. 75
9.2 SUPPLEMENTAL CHARACTERISTICS .......................................................................................................................... 87
CHAPTER10 REMOTE CONTROL ......................................................................................................................... 88
10.1 RS232 IN TER FACE ............................................................................................................................................ 88
10.2 USB INTE R FAC E ............................................................................................................................................... 89
10.3 LAN INTE RFAC E ............................................................................................................................................... 90
10.4 GPIB INTE RFACE .............................................................................................................................................. 90
10.5 CAN COMMUNICATION PORT ............................................................................................................................. 90
APPENDIX ............................................................................................................................................................... 92
SPECIFICATIONS OF RED AND BLACK TEST LINES .............................................................................................................. 92
Copyright ©ITECH Electronic Co., Ltd. vi

Acceptance and Installation

Device name
Quantity
Model
Remarks
Programmabl Supply
-
Number of the power cords vary
Cord for power cord connection.
USB cable
x1 - -
CD
x1 - Comprising user manual and and grammatic guidelines
Factory report
x1 - Test report before delivery
Chapter1 Acceptance and Instal lation

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:
e AC Power
Power Cord
alignment
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.
x1 IT7600
xN
series
IT7600 series include: IT7622/IT7624/IT7626/IT7627/IT7628
depending on the model,
See the Section Connecting the Power
documents related to programming
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Acceptance and Installation
IT7622/IT7624
Detailed Dimension Drawing

1.2 Instrument Size Introduction

The instrument should be installed at well-ventilated and rational-sized space. Please sel ect ap propr i at e sp ace f or i nstal lat i on bas ed on th e p ow er supply size.
Dimension:
Width:483 mm Height:151.30 m m Depth:719.62 mm
Copyright ©ITECH Electronic Co., Ltd. 8
Acceptance and Installation
IT7626
Detailed Dimension Drawing
Dimension:
Width:484 mm Height:347 mm Depth:706.37 mm
Copyright ©ITECH Electronic Co., Ltd. 9
Acceptance and Installation
IT7627
Dimension:
Width:550 mm Height:1289.95 m m Depth:841.10 mm
Copyright ©ITECH Electronic Co., Ltd. 10
Acceptance and Installation
Detailed Dimension Drawing
Copyright ©ITECH Electronic Co., Ltd. 11
Acceptance and Installation
Copyright ©ITECH Electronic Co., Ltd. 12
Acceptance and Installation
IT7628
Dimension:
Width:550 mm Height:1905.48 m m Depth:841.10 mm
Copyright ©ITECH Electronic Co., Ltd. 13
Acceptance and Installation
Detailed Dimension Drawing

1.3 Connecting the Power Cord

Connect power cord of standard a ccessories and ensure that the power supply is under normal power supply.
AC power input level
Worki ng voltage for IT7622/I T 7624 is 110V/220 V, Wor ki ng voltage for IT7626 is
Copyright ©ITECH Electronic Co., Ltd. 14
Acceptance and Installation
AC
L
N
GND
220V，Wor king voltage for IT 7627/IT 7628 is 380V. Pay attention to the wor king input voltage.
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 requir ed power ratings of this product. Any misuse voids the warranty of this pr oduct.
Connecting AC Input
The AC input connection of IT7622/IT7624 is the same as that of IT7626. Take AC input connection of IT7626 as an example.
distribution panel
In the above illustration, one end of the AC power cord is connected to the AC input terminal in the rear board of the power supply. Connect the fire wire, zero line and ground to the corresponding terminal of the device. Before inserting, please loosen 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.
The wiring structure of IT7627 is the same as that of IT7628, so their AC input connections are the sa me. Take AC input connection of IT7627 as an example.
Copyright ©ITECH Electronic Co., Ltd. 15
Acceptance and Installation
AC
L1
L2
L3
N
GND
distribution panel
In the above illustration, one end of the AC power cord is connected to the AC input terminal in the rear board of the power supply. Connect the L1,L2,L3,N and GND to the corresponding terminal of the device. Before inserting, please loosen the screw, lock the screw when it is inserted.
Connect the fiv e terminals brown to line ( L1), gray to line ( L2), black to line ( L3), blue to neutral ( N), and yellow to ground ( G) on the other end of the power cord t o your A C distribution panel.
Copyright ©ITECH Electronic Co., Ltd. 16
Acceptance and Installation
NOTE
Loosen the wiring screws on the panel and remove the panel before AC input connection of AC input.

1.4 Connecting Test Lines ( Optional)

Test lines are not standard accessories of the instrument. Please select optional red and black test lines for individual sales based on the maximum current value. For specificati ons of t est l i nes and max i mum curr e nt val ues, r efer to “Specifications of Red and Black Test Lines” in “Appendix”.
Before connecting test lines, be sure to switch off the instrument.
Power switch is in Off position. Otherwise, contact with output terminals in rear panel may cause electrical shock.
To avoid electrical shock, before testing, please make sure the rating
values of t he t esti ng li nes, and do not m easure t he curr ent t hat hi gh er than the rating value. All test lines shall be capable of withstanding the maxim um shor t cir cuit output curr ent of t he power suppl y wit hout causing overheat.
If several loads are provided, each pair of load wires shall safely
withstand the rated short circuit output current of the power supply under full load.
T o avoid battery short ci rcui t , be sure t o che ck that t he test li ne en d is
not connected when connecting or disassembling the test line. When the test line end is connected with battery, short circuit may cause severe acci d ent.
Always use test lines provided by ITECH to connect the equipment. If
test lines f r om ot her fact ori es ar e used, pl ease che ck that th e test li ne can withstand maximum cur rent.
The front panel of IT7600 series power supply is equipped with the front panel output terminal and rear panel output terminal (see the introduction to the front panel and rear panel for the locations of AC output terminals). Test line connection is given below taking local measurement as example. Before connecting the test lines, be sure that the instrument Power is in Off position. Check whether the shorting clip of Sense terminal is correctly mounted.
Connection of the front panel output terminal
The maximum output current of the front panel output terminal is 10A. In order to facilitate operation, the user can directly connect the front panel output terminal if the output current is l ess than 10A.
If the output current of the front panel output terminal of IT7626/IT7627/IT7628 power supply exceeds 10A, the overcurrent protection terminal of the front panel will automatical ly bounce up to protect the front AC output terminal. If the current of the connected load is less t han 10A, directly push the fus e box in.
Connection of the rear panel output terminal
The user can connect the rear panel output terminal according to the power output specifications. Specific connection of IT7622/IT7624/IT7626 is shown in
Copyright ©ITECH Electronic Co., Ltd. 17
Acceptance and Installation
Object to be tested
the figure below.
NOTE
When the output voltage has DC voltage, the output terminal L is +, and N is -.
Specific connection of IT7627/IT7628 is shown in the figure below. (take the example of IT7627)
Copyright ©ITECH Electronic Co., Ltd. 18
Acceptance and Installation
Operati on steps
1. Unscrew the screws of the output terminals and connect the red and black test l ines to the output terminals. Re-ti ghten the screws.
When maximum current that one test line can withstand fails to meet the current r ated curr ent, use se veral pieces of r ed and black test li nes. For example, the maximum current is 1,200A, then 4 pieces of 360A red and bl ack lines are required.
2. Directly connect the other end of the red and black lines to the DUT terminal.
Copyright ©ITECH Electronic Co., Ltd. 19

Quick Start

IT7622
300V
6A
0.75KVA
IT7624
300V
12A
1.5KVA
IT7626
300V
24A
3KVA
IT7627
300V
72A
9KVA
IT7628
300V
144A
18KVA
Chapter2 Quick Start
This chapter introduces the front panel, the rear panel, key functions and LCD display function of the IT7600 series 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

Main feat ures and advantages are listed below:
Parallel/three-phase control The start/stop phase angle can be set. The external isolat ion transformer
can be connected in the case of AC output. The power supply also supports remote SENSE co m pensation.
Simulat e the output of any waveform.
External 0-10V analog control  Voltage/curr ent anal og monit oring
The analog interface has two options: separate FM and FM-AM. The input
of the analog interface should be isolated. The synchronous On/Off input/output can be used for parall el operation.
Over-temperature,over-current,over-voltage,over-power protection
features
Smart temperature-control f an with low noise The power supply is able to measure Vrms, Vpk, Vdc, Irms, Ipk, W, VA,
VAR, CF, PF and THD, and has the function of harmonic analysis.
Display the real-time curve. If multiple units are connected in parallel, the
status information of all modules will be displayed simultaneous ly.
Standard communication int er face RS232 G P IB LAN USB CAN
Model Voltage Current Power

2.2 Front Panel Introduction

Differ ent model s of IT 7600 Ser i es pow er supply have different front panels. The front panel of IT7626/IT7627/IT7628 is as shown below. IT7622/IT7624 model has same front panel as IT7626/IT7627/IT7628 model except over-current protection output ter minal and output terminals.
Copyright ©ITECH Electronic Co., Ltd. 20
Quick Start
1 Operation buttons
2 USB interface
3 LCD display
4 Menu soft key
5 Up, down, left and right key
and enter key
6 Rotary knob
7 Number key
8 M1-M4 multi-f unction keys
9 Esc key,Clear key and Enter key
10 Function ke y
11 Power Switch
12 Menu soft key
13 Ventle ho l e
14 Home key
15 Overcurrent protection output
terminal
16 Lef t and right caster 17 Output t erminal s
18 Lef t and right handle

2.3 Key introduction

The key functions of the front panel and the keys in the key zones of IT7600 series ar e shown in the following figure.
Copyright ©ITECH Electronic Co., Ltd. 21
Quick Start
Key Symbol
Name & Function
Print
Used for saving screen images
Local
Used for switching the remote control mode to the local mode
Trig
Used for manual tri gger.
Log
Used for r ecording data. The recording inter val can be set in second
Power
Power Switch
Home
Used for going back to home page
F1-F6 R1-R5
Soft keys for corresponding screen me nu operations
Key Symbol
Name & Function
Rotary knob: used for setting the value indicated by the
Up/Down key and Left/Right key List Edit: those lines which are not displayed can be displayed by operating the Left/Right key. Those rows which are not disp layed can be displayed by operating the Up/Down key.
Key description, see the t able below:
Key description, see the t able below
cursor, selecting the voltage and current range, adjusting the waveform, etc.
Copyright ©ITECH Electronic Co., Ltd. 22
Quick Start
Key Symbol
Name & Function
Menu Edit: the programming items can be rolled by
Prompts of corresponding
options are displayed on the right and options can be
Carrying can be completed automatically.
Enter
Enter key, used for confirming the message
Number key. Enter the num ber directly
M1-M4
Recall the setup from int ernal memory stored in protection mode.
Enter/Lock panel but tons
Esc
Cancel/Esc key
Used to del ete the input digits in the di git editing mode.
On
Used for enabling the pow er function and input.
Off
Used for disabling the power function and input.
Setup/Menu the configuration parameters of various functions
List/Step
List function key,edit the list file / Step function key
Recall/Save
Recall the setup from internal memory/ Store the AC source settings in non-volatile memory.
M4.
/Meter
Waveform Display key When this key is pressed,the
corresponding to current measurement data
will be displayed.
Harmonic Measurement key When this key is pressed, the harmonic measurement results and the menu of harmonic measurement parameter configuration will be displayed.
Vector key When this key is pressed,the vector graph to current me asurement data will be displayed.
operating the Up/Down key. selected via the soft key.
Digit Edit: the progra m ming items can be rolled by operating the Up/Down key. The digit to be edited is selected by operating the Left/Ri ght key or via the knob.
0～9
Save1~4 for convenienc e. Press [Shift+M4] to exit
Enter key / keypad lock function keys，used to lock the
Shift
/Scope
/Harmonic
/Vector
Setting key / M enu key ，ent er the Sy ste m M enu an d s et
Compound key ，co-work with Lock/ Menu/ Step/ Save an d
Basic meter ing key used for basic metering.
waveform
Copyright ©ITECH Electronic Co., Ltd. 23
Quick Start
Parameter
explain
Current Mode
Operati ng m ode:Single mode/Parallel mode
Select To 3-Phasel
Mode
Support AC/DC/AC DC mode
Range
Selection of output range, including auto range, high range and l ow range.
Wave
Waveform display. There are five waveform can choose,
THDWave: THD wave
Char
Function description
Char
Function description
Status bar
Display area of
Soft key
Setting value
Soft key

2.4 Introduction to Information on the Interface

Early on, and the following main interface of IT7600 series AC source will appear.
measuring data
Select To Parallel
as shown below:
Sine: Sine wave Square: Squ are wave Sawtooth: Sawtooth wave Triangle: Triangle wave

2.5 Introduction to Interface Symbols

The interface of IT7600 power supply will display the following symbols. All the
Copyright ©ITECH Electronic Co., Ltd. 24
symbols and description are listed in the table below .
Quick Start
The AC source is in remote mode
Switch controller accessories
External Simulation Test Function
1 System bus
2 CLK_IN, clock input
3 CLK_OUT, clock out put
4 External simulation control terminal
5 GPIB communication interface
6 LAN communication interface
7 USB communication interface
8 RS232 communication interface
9 CAN communication interface
10 V ent hole
11 AC power output terminals
12 remote mea sure ment ter mi nal s
13 AC power input terminals
Shift
Compound k ey Key operation is locked
Clibration Record l og
Transformer accessor ies
RMS OCP OPP PEAK OCP

2.6 Rear Panel Introduction

Rear panel of IT7622/IT7624
OVP OTP
OLP DC mode
AC mode AC+DC mode
Three phase mode
Paralle mo de USB
Copyright ©ITECH Electronic Co., Ltd. 25
Quick Start
1 System bus
2 CLK_IN, clock input
3 CLK_OUT, clock out put
4 External simulation control terminal
5 GPIB communication interface
6 LAN communication interface
7 USB communication interface
8 RS232 communication interface
9 CAN communication interface
10 Remote meas ure me nt termi nals and AC power output terminals
11 Fuses
12 AC power input terminals
13 Cooling fans
Rear panel of IT7626/IT7627/IT7628

2.7 Power-on Selftest

A suc ce ssf ul sel ft est indi cat es that t he pur cha se d pow er pr od uct meet s del i very standards and is available for normal usage.
Before operation, please confirm that you have fully understood the safety instructions.
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Quick Start
ON OFF
OFF ON
To avoid burning out, be sure to confirm that pow er voltage matches
with supply voltage.
Be sure to conn ect the main power socket to the power outlet of
protective grounding. Do n ot use terminal board without protectiv e grounding. Before operation, be sure that the power suppl y is well grounded.

2.7.1 Power Switch Introduction

User can press the power switch of IT7600 series power supply directly to turn on or turn off the inst rument.
The status of Powe swit ch are as follows.

2.7.2 Power-on Selftest

Normal selftest procedures:
1. Correctly connect t he power cord. Press Power key to start up. The power supply will do selftest.
2. After initiali zation, the LCD scr een displays the following information.
NOTE
In case of any error, self-test will stop. Contact ITECH distributors or technical service engineer.
3. Press [Shift]+[Setup] (Menu),and the LCD screen of the AC sourece displays the system information.
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Quick Start
During self-test of the power supply, if EEPROM has error, the “Error” indicator on the status bar light s up.

2.7.3 System Self-Test

The self -test function of the AC Power Supply can be en abled to check the Lcd Test, Key Test, Dsp Test and BackRam Test. Specific steps are as fol lows:
1. Press [Shift]+[Setup] (Menu) to enter.
2. Press
3. Select [Device Self -Test] in this interface, and the system enters the self-test interface.
[Next] in this int erface, and the system menu is scrolling.
4. Press [Enter], the sys tem starts s e lf-test. If ‘LCD Checking Finsh’ displays on the scree n, LCD has passed self-test.
5. Press key Up/Down to select Key Tes t. Press [Enter]. Operate according to tips on the screen. Press [Esc]. If ‘Key Checking Finsh’ displays on the screen, Key has passed self-test.
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Quick Start
6. Press key Up/Down to select Dsp Test. Press [Enter]. If ‘Dsp Ok’ displays on the screen, Dsp has passed self-test. The self-test operation of BackRam is similar t o that of Dsp. After self-test, t he screen is as fol lows.
Exception handling
If the power supply can not start normally, please check and take measures by reference to steps below.
1. Check whether the power cord is correctly connected and confirm whether
Correct wiring of power cord => 2
2. Check whether the power in On. Power key is under “ ” On status.
3. Check whether the fuse of power supply is burned o ut.
If yes, replace with a f use of the same specificati on.
the power supply is powered.
Incorrect wiring of power cord => Re-connect the power cord and check whether t he exception is removed.
Yes => 3 No => Please check the Power key to start power and check whether the
exception is removed.
The fuse of IT7622/IT7624 is arranged on the internal circuit board of
the machi ne, and must be replaced by professional personnel.
Fuse of IT7626/IT7627/IT1628 can unscrew directly by hand.For fuse
position, see Introduction of Rear Panel for details. Remove the wiring panel bef ore replacing the fuse of IT 7627/IT1628.
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Basic Operation s

Chapter3 Basic Operations
This chapter describes operations of the keys on the front panel of the AC power suppl y. The AC power supply must be in the local mode when controlled by the front panel. The default mode is the local mode after the AC power supply is turned on. In the local mode, the user can enable all functions of the power supply through the f ront panel.

3.1 Output On/Off Operation

[On]/[Off] button on the front panel are used to control output switch. [On]
button lighted indicates the power supply output is on and the [Off] button lighted indicates the power supply output is off. The initial state of AC source is OFF.
NOTE
Make sure you have connected AC source and DUT very well, then press [On] button to minimize shock hazard.

3.2 AC Output Mode

If user set AC Mode, the instrument will simulate AC power supply. The default set of IT7600 ser i es p ow er sup ply is AC Mode. Set the o utput p ara met ers of t he power supply in the main interface, including the output voltage, output frequency, output start phase and output stop phase. Select the corresponding parameters by pressing the Up and Down keys on the front panel, as shown in the figure below.
AC: AC voltage value. Setting range is different among Auto, High and Low
range. Ref er to 9.1 Main technical param eters for more detail s.
Freq: Start: Start phase angle Stop: Stop phase angle
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Frequency with range of 10-5KHz.
Basic Operation s

3.3 DC Output Mode

If user set DC Mode, the instrument will simulate DC power supply. Set the output voltage of the DC power supply in the main interface, as shown in the figure below.
DC: DC voltage value. Setting range is different among Auto, High and Low range. Ref er to 9.1 Main technical parameters for more details.

3.4 ACDC Output Mode

If user set ACDC Mode, the instrument will simulate AC and DC power supply, which can add DC component to AC voltage. Set the output voltage in t he m ain interface, as shown in the figure below.
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Basic Operation s

3.5 Switching Output range

IT7600 series AC source will allow switchover between High range Low range and Auto range.
User can choose the range according to actual test requirements, when High range is selected, voltage setting value is under high level. When Low range is selected, voltage setting value is under low level (refer to 9.1 Main technical parameters for more details).If the auto range is selected, the instrument will automatically switch to high level or low level, thus sparing complicated operations such as manual setti ng.
NOTE
There is a temporary OFF to the AC source during the switchover of range.

3.6 Waveform Selection

The user can set the output waveform in the main interface of IT7600 series power supply. Five output wavefor ms b elow are available:
Sine Square Sawtooth Triangle THDWave
When THDWave is sel ected, the u ser should configure the dist or ti on w avefor m. (refer to 8.4THD Wa ve for more details)

3.7 Sweep function

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 frequen cy of power may be altered in the form of step ladder by setting the initial voltage, final voltage, step voltage, initial frequency, final frequency, step frequency and one-step time. As the test closes, voltage and frequency at the maximum power point may be displayed. Sweep function is not applicable under DC mode and ACD C mode.
Operating steps
1. Press [Shift]+[List] (Step) on the front panel to enter the sweep interface, as shown in the figure below.
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Basic Operation s
Soft Key of Menu
Description
Step Mode
Sweep mode Trig: Trigger mode
Priority
Priority setup: voltage or frequency.
Parameter
Explain
V-Start
Set the starting volt age.
V-End
Set the ending voltage.
V/Step
Set the step voltage.
T/Step
Set the step time.
F-Start
Set the starting frequen cy.
F-End
Set the ending frequency.
F/Step
Set the step frequency.
Repetition
Set the sweep cycles.
Time: Time Sweep Mode
2. Set the voltage and frequen cy parameter s in the sweep interface.
Parameters in the sweep interface are described as follows:
3. Press [On] on the front panel. Then the measured value will be displayed on LCD.
4. After sweeping, [On] on the front panel will be disabled, and [Off] will be enabled.

3.8 Key Lock Function

Press [Shift]+[Enter] (Lock) button to set the key lock state.If keyboard has been locked,the indicator light ”Lock” will display on the LCD.In addition,when keyboard are locked,all buttons can’t be used except Local key Press [Shift]+[Enter] (Lock) once again will relieve key l ock function.
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Basic Operation s
MENU
System Information
Product Name
Instrument Name
MAC
Software MAC address
System Configure
Date(YY/MM/DD)
System date: Year/Month/Day
System time: Hour/Minute/Second
Set the screen brightness.
Set the keyboard sound System Reset
System Reset
System Setup
Set the trig source:
External
Loop Speed
Output loop speed control, with
select “Fast”.
External simulation tes t:
Off

3.9 Switching Local/Remote Mode

You can 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 Local keys. You can switch Local/Remote mode via PC. In addition, the mode modificaton will not affect the output paramet ers.

3.10 Menu Operation

3.10.1 Menu description

Press the composite key [Shift]+[Setup] (Menu) to enter the menu function. At this ti me, LCD di splays opti onal menus. O perat e t he men u by pr e ssi ng sof t k ey s. Select and edit the menu items by pressing the Up, Down, Left and Right keys. Specific menu items are s hown below.
System Information
System Configure
Serial Instrument SN Software Version Instrument Version
Time(hh:mm:ss) Brightness
Beeper
POSETUP Off/On Logger Interval Logger storage interval
Trig Source
ON: Buzzer on  OFF: Buzzer off
Key  Software  Bus
two options:
System Setup
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Ext-Ctrl
Slow:Slow speed  Fast: fast speed
Control the loop stability. If the capacitive or inductive load is connected, select “Slow”. If the resistive load is connected,
On
Basic Operation s
Relay cont rol:
Close: normally closed, for access to the user’s
The defaul t is Open.
Network Configure
Master/Slave mode:
Slave: Set the slave mode
Network Type:
2: Three-phase
Network Num
Set the network number
Current PEAK
Set the current PEAK
Immediate protection of
after the delay Time, in s.
Communication Config
Interface, with the following
CAN
GPIB Address
GPIB address setting
IP Mode
IP Mode: Static/DHCP
Gateway
Set the gateway.
Socket port
Set the socket port
Prescaler: set the Prescale
Bit Segment1: range from 0~16.
range from
0~8.
Other1-4 ID: set other Can address.
Transformer Setup
Transformer accessory
On
Network Configure
Protect Configure
Current Protect
Relay Ctrl
circuit
Open: normally open,
for isolation of the user’s circuit
Network Mode
Master: Set the Master
mode
Network Type
Current RMS Set the current RMS
Time
1: Parallel
effective or peak current: IMME: immediate
protection.
TIME: current protection
Communication Configure
drop-down options: RS232
Current Comm
RS232 Baudrate Set the Baudrate
IP Address IP address setting MASK Set the mask
Can Parameter Setting
USB  GPIB  LAN
Bit Segment2:
Can ID: set Can address.
Transformer Configure
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Transformer Function
function:
Basic Operation s
Off
Set the turns ratio of main and 1:1)
Product Name
IT7626
Serial
602807022717630005
Softwar e Version
0.12,0.16,1.03,1.11
MAC
00: 17: 18: 01: 0f: 5c
Porduct Self-Test
Device Self-Test

3.10.2 Menu function

System Information
The it em “Syst e m Information” pr o vides t h e instrument i nf or mati on, as show n in the table below.
Transformer Abudhal
Lcd Test Lcd Test
Key Test Key Test
Dsp Test Dsp Test
BackRam Test BackRam Test
secondary coils (default value:
Set the screen brightness (>Brightness)
This item can set the screen brightness. Set the screen brightness within the range 1-10 by pressing number keys on the front panel. The larger the number is, the higher the screen brightness is. You can also set the screen brightness by rotating the knob on the front panel .
Set the keyboard sound (>Beeper)
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.
Set the Loop Speed (> Loop Speed)
This item can control stability of the loop. When the connected load is capacitive load or inductive load, select Slow; when the connected load is resistance, select Fast .
Set the Relay (> Relay Ctrl)
This item can isolate or connect the user loop. When Close is selected, the relay is closed, and the user circuit can be connected; if Open is selected, the relay is open, and the user circuit is isolated.
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Basic Operation s
Protection
Upper Limit
Immediate
Delay Time
Network Configure (>Network Configure)
This item can set the network type and corresponding network quantity. Two network types are available:
1: Parallel mode. 2: Three-phase mode, corresponding to 3 or more networks.
The user can select the corresponding mode by pressing number keys on the front panel, and determine the network quantit y according to actual conditions.
Set the communication interfance (>Communication )
This item can set co mmunication mode s o f t he AC power suppl y. IT7600 Seri es has the following standard communication interfaces: RS232/USB/GPIB/LAN/
CAN You can choose any one of them to communicate.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.
RS232 Baud rate:4800/9600/19200/ 38400/57600/ 115200.
USB communication interface The address range of GPIB is 0-32
LAN parameters include Gateway address (Gateway), IP address (IP),
Mask address (Mask) and port (Socket Port).the IP address and Socket Port should be consistent with that of the PC address an d port Number
Set the transformer configure (> Transformer Configure)
This item can set On/Off of t he A C transformer accessory and the tur ns ratio of main and secondary coils (defaul t val ue: 1:1).

3.11 Configuration Save/Recall Function

Press [Shift]+[Recall] (Save) on the front panel of t he power supply to save all the current parameters in the ten groups nonvolatile memory. The user can press [Recall] to easily and rapidly recall the parameters fr om Save0 to Save9.
Recall the setup from internal memory stored in Save1~4 for convenience by pressing [M1] ~ [M4].

3.12 Protection Function

IT7600 series source includes the following protection functions: overvoltage protection (OVP), overcurrent protection (Peak OCP,Rms OCP), over-temperature protection (OTP), over-power protection and over-load protection.
Setting of protection function
1. Press [Shift]+[Setup] (Menu) key to enter.
2. Press [Protec t Configure] in the interface to enter the “Current Protect” interface, where you can set the following protection.
Type
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protection
Basic Operation s
Protection
Upper Limit
Immediate
Delay Time
Current RMS
RMS current for
When the circuit current exceeds the set
value, OCP protection will be
Overcurrent actual time
exceeds the protection will
The maximum delay time is
Current PEAK
Peak current for
Type
3. Press [Shift]+[Recall] (Save) to save the settings. In this case, the prompt “Configure Success” will appear on the i nterface. If [Shift]+[Recall] (Save) are not pressed, the configured parameters will be invalid.
Overvoltage protection (OVP)
When the output voltage of the power supply exceeds 430V, overvoltage protection will be triggered, the power output will be immediately OFFand
will appear on the LCD scre en.
OCP protection
OCP protection
protection
effective/peak
enabled immediately.
time: when the
delay time, the be enabled.
5s.
Clearing overvoltage pr otection:
In the case of o vervoltage pr ote ct i on, disconnect the t est ed o b ject at f ir st . Pr ess [shift]+[M4] on the front panel (or send the command “PROTection:CLEar”) to
clear on the front panel and exit the O VP mode.
Overcurrent protection (OCP)
Peak overcurr ent protection (Peak OCP)
When the output current exceeds the set peak current, Peak OCP will be enabled, and will appear on the LCD screen. When the RMS overcurrent
protection is disabl ed, the OC status i n the status register will be reset.
Clearing overcurrent pr otection:
In the case of overc ur rent prot ection, disconnect the tested ob j ect at fi r st . Press [shift]+[M4] on the front panel (or send the command “PROTection:CLEar”) to clear “Peak O CP ” on the front panel and exit the Peak OCP mode.
Rms OCP
When the output current exceeds the set Rms current, Rms OCP will be enabled, and will appear on the LCD screen. When the peak current
protection is disabl ed, the OC status i n the status register will be reset.
Clearing overcurrent pr otection:
In the case of overc ur rent prot ection, disconnect the tested ob j ect at fi rst . Press [shift]+[M4] on the front panel (or send the command “PROTection:CLEar”) to
clear on the front panel and exit the Rms OCP mo de.
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Basic Operation s
Over-temperature protection (OTP)
When the temperature of the power component in the power supply exceeds 95°C, the temper at ure pr ote ct i on wi ll be enabl ed. In t hi s case, the pow er sup pl y
will be automatically OFF, and the LCD will display . At the same time, th e OT posi ti on i n the st atus r egi st er wi ll be set and kept until power supply is reset .
Clearing over-temperature protection:
When the power supply temperature decreases to the protection temperature, press [shift]+[M4] key on the front panel (or send the command
“PROTection:CLEar”). Then on the power supply screen will disappear, and the power supply wil l exit the OTP status.
Over-power protection (OPP)
When the output power exceeds the set power, OPP will be enabled, and will appear on the LCD scre en.
Clearing over-power protection:
In the case of over-power protection, disconn ect the tested object at first. Press [shift] + [M4] on the front panel (or send the co mm a nd “PRO Tection:CLEar”) to
clear on the front panel and exit the OPP mode.
Over-load protection
When the output load exceeds the set load, OLP will be enabled, and will appear on th e LC D screen.
Clearing over-load protection:
In the case of over-load protection, disconnect the tested object at first. Press [shift] + [M4] on the front panel ( or send the co mma nd “ PROTection:CLEar” ) t o
clear on the front panel and exit the OLP mode.

3.13 Data Recording Function

IT7600 ser ies power supply can record the data at intervals. The user can save present measurement data into the peripheral memory disc by pressing [Log] on the front panel. All data will be saved in files ending in CSV. Press
[Shift]+[Setup] (Menu) to enter into [System Configure]. Select [Logger Interval] to set the recording interval.

3.14 Screen Capture Function

IT7600 series power supply has the screen capture function. Insert the USB equipment into the USB interface of the front panel, and press [Print] on the front panel to capture and save the current screen into the peripheral USB memory.

3.15 Trigger Function

IT7600 series has four trigger source to choose: trigger by keys
(Key),Software trigger (Software),Bus trigger (Bus) and External signal trigger (External).
Key: if [Trig] on the front panel is pr essed in the val i d key tri gger mode, t he
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Basic Operation s
Pin
Name
Instruction
Pin 1
V-MON
Voltage output signal.
Pin 2
Vexter
External reference input.
Pin 3
ONOFF_STATE
ON/OFF sta te output.
Pin 4
FAIL
System FAIL state signal output.
Pin 5
GND
Digital grounding.
Pin 6
I-MON
Current output signal.
Pin 7
GND3
External simulation grounding.
Pin 8
ON/OFF
ON/OFF control signal input.
Pin 9
EXT TRIG
External trigger control signal input.
power supply will be triggered once.
Software: if the trigger command is received by the power supply from the communication interface in the valid software trigger mode, the power supply will be triggered once.
Bus: if t he bu s tr i gger co mman d i s r eceived by the pow er s uppl y i n t he vali d bus trigger mode, the pow er supply will be triggered once.
External: if one trigger signal is connected to the pin 9 of the Analog
Interface terminal on the rear panel, the power supply will be triggered once.

3.16 External Simulation Test Function

The rear pan el of the pow er suppl y is equi ppe d wi t h a DB-9 simulation interface used for controlling the on-load voltage. The adjustable voltage can be connected to the simulation interface to simulate the output from 0 to the full range, thus adjusting the output vol tage.
Press [Shift]+[Setup] (Menu) to enter the [System Setup] interface. Select Ext-Ctrl and set it in the ON state. Exit the menu. Then will appear on the
LCD screen. Press [M1] on the front panel to exit the external simulation function.
DB-9 terminal is defined as follows.

3.17 Remote Measurement Function

If the tested instrument consumes large current, a large voltage drop will be detected in connection line between tested instrument and power supply terminal. To ensure measurement accuracy, a remote sense measurement terminal i s provi ded at pow er supply rear panel to compensat e volt age dr o p l ost in wir e.
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Basic Operation s
SL，SN: remote sense terminal L，N: rear panel output terminals, the same as the front panel output
terminals.
X: connectionless
NOTE
When the output voltage has DC voltage, the output terminal L is +, and N is -.
Use remote sense:
Use the “Remote Sense” function to compensate the voltage drop of the wire between the rear panel terminal and tested equipment. Operations are as follows:
1. Disconnect the wires/short clips between L and SL, N and SN.
2. Connect the SL to the DUT’s L terminal, and connect the SN to the DUT’s N terminal.
3. Connect one pair of dri ve wires from the rear panel t ermi nals L and N t o the tested equipment.
NOTE
In order to ensure the stability of the system, using armored twisted pair cable between the remote sense terminal of IT7600 and DUT.

3.18 Three-phase parallel setup

IT7600 can be used in parallel connection of multiple units to test three-phase AC power supplies.In three-phase parallel applications, the user can select the Y-type and Δ-type connection according to the actual requirements. Flexible connecti on can meet various test req uirements.
Under Paral lel mode, the out p ut pow er ca nnot ex cee d 90% of the t ot al pow er t o avoid loss caused by AC power unbalance.
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Basic Operation s
Connections of three-phase parallel power supplies include Y-type and Δ-type connection, as shown i n the followi ng figures（take the exampl e of IT7626）
Y type connection:
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Basic Operation s
Delta connection:
The system bus interface can be connected to multiple units via cross-over cables, as shown in the above connection of diagram of three-phase parallel power supplies.
Select one connection method as shown above. After wiring, configure rel evant parameters of the functions of the three-phase AC power supply.Detailed operation steps are show n below:
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Basic Operation s
Parameter
Explain
AC-A
Set the volt age of Phase A.
AC-B
Set the volt age of Phase B.
AC-C
Set the volt age of Phase C.
Set the frequency of Phase A, B and C.
Start-A
Set the start angle.
Stop-A
Set the stop angle.
1. Press [Shift]+[Setup] (Menu) on the front panel to enter the main interface of the AC power supply.
2. Press [Network Configure] to enter the “Netw ork Configure” interface, and set “Networ k N um” as 3.
3. Press [Select To 3-Phase] to enter the three-phase function configuration interface. By default, the system allows to set the amplitude value of three phases under Balance mode (the three phases have same frequency and amplitude, but the phase difference is 120 degrees), as shown in the figure below.
Freq
4. To test the DUT under Unbalance three-phase mode, press soft key
[Unbalance] to enter the three-phase parameter configuration interface under Unbalance mode, and set voltage values, frequency values, start angles and end angles of the three phases. Press soft key [More Settin g ] to set the angle diff erence of the three phases. As shown below.
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Basic Operation s
Parameter
Explain
Set the volt age of Phase A.
AC-B
Set the volt age of Phase B.
AC-C
Set the volt age of Phase C.
Freq
Set the frequency of Phase A, B and C.
Start-A
Set the start angle.
Stop-A
Set the stop angle.
B->A
Set the angle difference between Phase B and A.
Set the angle difference between Phase C and A.
Parameter setting is as follows:
AC-A
C->A
5. After setting the parameters, press [On] on the front panel. Relevant
values wi ll be displ ayed on LCD .
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Measurement Functions

Soft Key of Menu
Description
Single
Singl e mode
Peak Hold
Peak Holding Mode Off: to disable the peak holding mode.
Meter
Disp: metering display interface Conf: metering parameter configurat ion interface
Chapter4 Measurement Functi ons
This chapter describes the characteristics and operations of the basic metering function of IT7600 seri es source.
IT7600 seri es so urce ha s r i ch f unctions of basic meter i ng of electric energy and can accurat ely measure the parameter s such as

4.1 Interface Introduction

Press [Meter] on the front panel to enter the metering interface, as shown in the figure below.
Vrms, Irms, Ipeak, Idc, CF, PF

4.2 Setup interface

Press [Meter] on the lower part of the screen, and then press [Conf] to enter the metering parameter configuration interface, as shown in t he figure below.
On: to enabl e the peak holding mode
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Measurement Functions
Parameter
Description
Parameter
Description
U
Voltage value
F
Frequency value
I
Current value
P
Active power [W]
Ip+
Positive current peak value [ A ]
Ip-
Negative current peak CF
Crest factor
PF
Power fact or
Ipeak
Peak current value
S
Apparent pow er
Q
Reactive pow er
Ptot
Tot al power
Udc
DC voltage
Idc
DC current
Up+
Positive voltage peak value
Up-
Negative voltage peak value
The user ca n s el f -defi ne t he scr een para met ers. Fo ur large-font parameters are displayed on the upper part of the interface. The above figure shows the voltage, frequency, current and active power. Press the Up and Down keys to move the cursor, and select the parameter (red background). Press the corresponding soft key on the right side to adjust the current parameter. Set all the paramet ers by the abo ve steps.
Descri ption of the metering parameter s:
value [A]
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Oscilloscope Functions

Parameter Name
Description
Scope(V/A/VA)
Used for selecting the waveform to be displayed voltage/current.
Measure(Disp/Meter)
Waveform metering value
display
Trig Setup
Trigger setting.
Phase
Phase selection, with four options: A, B, C and
You can switch the four options under
three-phase mod e.
Chapter5 Oscilloscope Funct i ons
IT7600 series source has the oscilloscope function. This chapter describes the oscilloscope functi on and operations of the AC source.

5.1 Interface Introduction

IT7600 series source has the function of displaying the waveform based on sampling data. The user can select to display or hide the voltage and current waveform of the input unit. Only the necessary waveform is displayed, which can facilitate observation. The waveform display interface includes the vertical axis and horizontal axis.
Introduction to soft keys of interface
Press [Scope] on the front panel and the following waveform display interface will appear.
Descri ption of keys on the waveform display interface:
on the scree n: voltage, current and Waveform display /
ALL. The def ault is P hase A in the standalon e mode.
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Oscilloscope Functions
Parameter Name
Description
Function
Knob select ion: the following variables can be
Trig-TimeBase: TimeBase
Run/Stop
Run/stop: press the corresponding soft key to run or stop the waveform status.
Auto
Automatic adjustment key: when the correspon ding soft key is pressed, the input signal of the power meter will be calibrated automatically to display the best effects of input signals.
Single
Single measurement key: when single measurement is enabled in the Stop status, the stop status is enabled again after one measurement based on the current data updating rate. When single measurement is enabled in the
y restarts one measurement and then enters the Stop status.
Voltage grid
Trigger state
The voltage difference bet ween Measuring
Wave
adjusted by rotating t he knob
Volt-Range: volt age range Curr-Range: current r ange Volt-Base: voltage base Curr -Base: current bas e Trig-Level: trigger level Trig-Delay: trigger delay
Run status, the instrument immediatel
Introduction to waveform display interface
Trigger delay Time grid
ground level and point of center vertical
Trigger level
parameters
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Oscilloscope Functions
Trigger State
Description
Auto
The selected trigger mode is “Auto”. After triggering, the trigger st ate “Auto” appears.
Auto?
The selected trigger mode is “Auto”. The trigger state is “Auto?” if triggering is not performe d.
Trig
The selected trigger mode is “Normal”. After triggering, the trigger st ate “T rig” appears.
Trig?
The selected trigger mode is “Normal”. The trigger state is “Trig?” if triggering is not performed.
Stop
Press the soft key [Stop] in the waveform display interface. The trigger state “Stop” appears.
Descri ption of the trigger state:
Vertical calibration
The voltage range and current range are subject to vertical calibration (voltage/scale and current/scale). Press the soft key [Function] and select Volt-Range or Curr-Range. Rotate the knob to set the voltage or current range of each interval.
Horizontal calibration
If the soft k ey [Function] is pressed and “Trig-TimeBase” is selected, you can rotate the knob to adjust the horizontal scale (scanning speed). When the horiz ontal (ti me/scale) setting i s chang ed by r ot ati ng the knob, y ou can observe the change of time/scale on the screen. During data collection, the sampling speed can be changed by adjusting the horizontal calibration knob. After collection is stopped, the collected data can be amplified by adjusting the horiz ontal calibration knob.
Trigger delay
If the soft key [Function] is pressed and “ Trig-Delay” is select ed, you can rotate the knob to adjust the trigger delay. In this case, if the knob is rotated, the trigger point will move horizontally and the delay time will be displayed on the
screen. To change the delay time, move the trigger point ( ) horizontally and set the distance between the trigger point and the horizontal center. The trigger point moves along the top end of the display grid.
Trigger waveform
When the specified trigger conditions are satisfied, the trigger waveform will be displayed. The triggering time is the trigger point, generally on the right of the screen. When the trigger poi nt is reached, t he screen will display the waveform from left to right over time. The user should set the following parameters before using the trigger function.
Trigger mode
The trigger mode refers to the condition to update the contents on the screen. It is divided into the Auto mode and Normal mode. In the Auto mode, the displayed waveform will be updated when triggering occurs in the suspension time; otherwise, the displayed waveform will be updated automatically.
Copyright ©ITECH Electronic Co., Ltd. 50
Oscilloscope Functions
In the Nor mal mode, the displayed waveform will be updated in the case of triggering and not updated in the case of no triggeri ng.
Trigger source
The trigger source is used for generating trigger conditions. The user can select the trigger source in the input signal of t he input unit.
Trigger slope
The slope refers to the change of the signal from low level to h igh level (rising edge) or from high level to low level (falling edge). The slope used as a trigger conditi on is referred to as the trigger slope.
Trigger level
The trigger level refers to the level which the trigger slope passes through. If the signal of the trigger source passes through the set trigger level according to the specified trigger slope, triggering occurs. When the soft key [Function] is pressed and “ knob to adjust the trigger level. In this case, the trigger level can be changed by r otat i ng t he k nob an d y ou ca n observe trigger level cha ng es on the screen.
Trig-Level” is selected, you can rotate the

5.2 Adjustment of measuring parameters

The user can adjust the four measuring parameters according to the test requireme nt. The detailed operation steps ar e as follows:
Operation steps
1. Press [Scope] to enter into the scope interface.
2. Press [Measure] and select [Meter].
3. Press soft keys on the front panel to select the measuring parameters you need.
Copyright ©ITECH Electronic Co., Ltd. 51
Oscilloscope Functions
Parameter
Explain
Src Phase
Trigger phase, Select Phase A,B or C.
Src Type
Trigger source : select the voltage or current as the
Mode
Trigger mode : select the Auto, Normal or single
Slope
Trigger slope : select the rising edge, f all ing edge or

5.3 Setting of Trigger Configuration

To enable the trigger function, you should select the trigger source, trigger mode, trigger slope, etc. Detailed steps are as follows.
Operating steps
1. Press [Scope] to enter the waveform display interface.
2. Press the soft key “Trig Setup”, show n as below.
3. Press the soft key corresponding to the parameter on the right side and select the required trigger configur ation.
Parameter descriptions:
trigger source.
mode.
rising/falling.
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Chapter6 Harmonic Function
Parameter Name
Parameter Description
Chart
Displ ayed in the bar chart form
List
Displ ayed in the list form
Single
Singl e mode
U/I
Select the voltage/curr ent harmonic
Thd Formula
Distortion factor calculation f ormula.
to the fundam ental voltage.
This chapter describes the characteristics and operations of the voltage harmonic measurement function of I T7600 series source.
The bandwidth of IT7600 series AC source is 5kHZ. The voltage/current harmoni c measure ment of hi gh speed and wide dynami c scope ca n be reali zed. In the harmonic mode, phase and voltage/current harmonic distortion factor (UTHD) can be tested.In addition, IT7600 can be used for measuring multiple harmonics.
bands can be realized in IT7600. For example, 50 times at 50Hz-500Hz; 20 times at 501Hz-2000Hz; and 10 times at 2001Hz-5000Hz.

6.1 Interface Introduction

IT7600 series source can display harmonic parameters in the list or bar chart form to make t he analysis of test result clear.
Introduction to soft keys of interface
In addition, multiple harmonic measurements under different fr equency

Harmonic Function

Press [Harmonic] on the front panel and the following initial interface of harmonic measurement w ill appear.
Descri ption of the harmonic measurem ent interface:
%r: displaying harmonics in the form of p ercentage
to the overall voltage a mplitude of all harmonics.
%f: displaying harmonics in the form of pe rcentage
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Introduction to harmonic display interface
Histogram
Param et er of
X-axis: harmonic
Harmonic bar chart screen
When “Chart” is selected in the harmonic measurement screen, the bar chart of harm onic measurement results will be displayed. The bar chart is used to show the percentage of each harmonic measurement.
Percentage of harmonic
Harmonic Function
Parameter of harmonic
THD value
each harmonic
numbers
Total harmonic parameters: Under single phase mode, display total harmonic distortion of the single phase. Under three-phase mode, display total harmonic distor tion (THD) factors correspo nding to Phase A, B and C.
Single harmonic parameters:
harmonic distortion factor and phase of the single phase. Under three-phase mode,
display the single harmonic distortion factor and corresponding phase.
Under single phase mode, display single
The phases A, B and C are respectively in yellow, green and red. The user can rotate the knob to select each harmonic to be displayed. The selected harmonic will be displayed in blue i n the bar chart.
Harmonic l ist
When “LIST” is selected in the harmonic measurement mode, the list of harmonic measurement results will be displayed, When “U” is selected, the list will display the voltage and phase values under various harmonics. When “I” is selected, the current and phase values will be displayed.
single-phase mode, the list only displays m easurement res ults for Phase A, and displays 0 for the other two phases , as shown in the figure below; under three-phase mode, display effective values for the three phases.
Under
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Harmonic Function
Abbreviation
Description
Abbreviation
Description
U (%f)
Harmonic
voltage
I (%f)
Harmonic
current
Phase(°)
Phase
Measurement parameters are defined as follow s:
distortion factor of
Harmonic number list: the signal data of 0-50 LIST. You can press the Up and Down key to display the hidden rows, i.e. hidden dat a of single har mo nic data.
distortion factor of
th
harmonic(s) will be shown in the

6.2 Distortion factor calculation formula

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The following two formulas can be selected for calculation of the distortion
factor.
Measurement
function
Calculation formula and method
%r
%f
Harmonic distortion factor of voltage
( )
( )
TotalU
kU
( )
( )
1U
kU
Harmonic distortion factor of curr ent
( )
( )
TotalI
kI
( )
( )
1I
kI
Total harmonic distortion rate of
( )
( )
TotalU
kU
k
∑
=
max
2
2
( )
( )
1
max
2
2
U
kU
k∑=
Total harmonic distortion rate of
( ) ( )
∑
=
=
max
02k
kUTotalU
( ) ( )
∑
=
=
max
02k
kITotalI
Harmonic Function
%r:
use all harmonic measurement data from the minimum harmonic order
th
(0
) to the maximum harmonic order (within the upper limit of analysis
orders) as the denominat or.
%f: using the data of fundamental wave (1-order) components as the
denominator.
The distortion factor calculation formulas and methods of different measurem ent functi ons are as follows:
voltage
current
max
( )
kI
k∑=
2
( )
TotalI
2
max
∑
k
2
( )
kI
2
=
( )
1
I
NOTE
Total harmonics are calculated as follows: indicates the harmonic order, and max indicates the upper limit of analysis orders. 50 orders at most.
，
. k
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Chapter7 Vector Funct ion
Soft Key of Menu
Description
U/I/UI
Select the trigger source:voltage,current or voltage and current
% r: displaying harmonics in the form of percentage to the
overall current (or voltage power) amplitude of all
% f: displaying harmonics i n the form of percentage to the
fundamental current (or voltage power ).
This chapter descr ibes the vector f unction features and operati ng steps of IT7600 series power supply in the three-phase mode. Only for three phase mode.
Introduction to soft keys of interface
Press [Vector] on the front panel t o enter the vector measure ment i nt er face, as shown in t he figure below.

Vector Function

Thd Formula Distortion fact or calculation formula.
harmonics.
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Introduction to vector display interface
Vector value of single Current paramet er
Coordinate of maximum value
Vector Function
harmonic phase
Coordinate of maximum value: display the maximum U, I or UI values of the phases A, B and C.
Vector value of single harmonic phase: display the single harmonic component and phase value of each phase. The phases A, B and C are respectively in yellow, green and red. The user can rotate the knob to select the desired single harmonics.
NOTE
The vector function is valid only in the three-phas e mode.
The phase parameters in the figure correspond to those in the harmonic
function. The vector diagram is another kind of demonstration of parameter s in the harmonic function.
Copyright ©ITECH Electronic Co., Ltd. 58
Chapter8 Configuration of Any Waveform
Soft Key of
Description Create New
Create a new List file.
Edit Cur rent
Edit the saved List file.
Recall Config
Recall the saved List file.
Export Config
Export list file
Delete Conf ig
Delete list file
This chapter will introduce configuration of any waveform of IT7600. Besides the five standard waveforms (see 3.6 Waveform selection) built in the main interface, the user can enable the outp utting of AC wave sequences of different amplit udes through List and self-define functi on. Waveform Configuration is not available for DC and ACDC modes.

8.1 List Function

Under IT7600 List mode, at maximum of 50 steps can be edited for each List file. The user can choose any waveform from existing 11 waveforms. Or, the user can choose a waveform file stored in the device through self-define function (see
8.3 Self-defined Wa vefor m Functi on for detail s) and co mbi ne t he w a vefor m files
into a List file based on required order. Meanwhile, the user can set the starting steps of the List file, run count and end state of the waveform, and edit parameter s such as f req ue ncy, amplit ude, r unni ng t i me and ri sing slope of eac h waveform.
List Function
Create a new single-phase LIST file
Under single-phase mode, the user can output AC waveform sequences with different amplitudes by creating a new List file. Detailed operation steps are as below:
1. Press [List] on the front panel to enter the List function configuration interface, select soft key [standard]. as shown i n the figure bel ow.
Menu
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List Function
Self-defined Wave E dit
Edit the self-defined waveform. Refer to 8.3 “Self-defined
Standard
Standard list
Surge-Trap
Surge/trapped wave. Refer to 8.2 “Surge/trapped wave” for
details.
Parameter
Explain
Insert
Press it to insert a single step behind the current single step.
Delete
Press it to delete the cur rent singl e step.
Next
Press it to select next single step.
Forward
Press it to select the previous step.
Graphy Viewer
Displ ay the waveform.
Configure
Download configuration parameter s.
Parameter
Explain
Run Jump
Edit the start i ng steps of the List f ile.
List display zone
Waveform” for details.
2. Press [Create New] to enter the List file configuration interface.
Soft buttons
List editing zone
Descri ption of List display zone: Mainly display the edi ted List. Vi ew the list by pr essing [Next] and [Forward]. Descri ption of soft buttons on the List interface:
3. Press the Up/Down key to select each parameter in the List edit zone. Besides, the user can set the starting step, run count, end state of the waveform, waveform type, frequency and amplitude by operating the number keys and soft keys.
Parameters of the List editing zone ar e as follows:
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List Function
Run Count
Edit the cycles of the List file.
End State
Set the final waveform, with the following options
after operati on.
Wave
Set the output wav eform, with the following opti ons
Self-defined Waveform Function
Freq
Set the frequency
AM
Set the wavef or m a mplitude.
Time
Set the time.
Kac
Set the rising slope of the AC power supply.
StartA
Set the start angle.
StopA
Set the stop angle.
Offset
Set the offset.
Type
Control the triggering of List file, with the following
TRIG: run next step after receiving the trigger si gnal.
available:
Stop:
directly stop the waveform output after
operation.
Last:
keep the last waveform output unchanged
available:
Sin Squre Triangle Exp Ramp_rise Ramp_fall Sin_Pos Sin_Neg THDWave 2nd_Step 2nd_impulse
You can also set the output waveform whi ch is created by
: sine wave
: square wave
: triangle wave
: exponential wave
: rising slope wave
: falling slope wave
: positive sine half-wave
: negative sine half-wave
: THD wave
: 2nd-order step function waveform
:2nd-order impulse function waveform
options availab le:
: run next step af ter the set Time.
TIME
4. Press [Insert] to insert a single step. The single step will automatically appear i n the List. After configuration, the foll owing interface will appear.
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List Function
Voltage/scale
Time/scale
trigg er del ay
5. Press [Graphy Viewer] to draw the waveform according to the configured parameter s, as shown i n the figure below.
X+/ X-: Increase/decrease the time grid. Y+/ Y-: Increase/decrease the voltage gri d. Left<</ Right>>: If the waveforms cannot be completely displayed in the
present screen, move the waveform leftward/rightward or operate the knob at the front panel.
6. After editing, Press [Esc] to go back to the previous interface, press [Shift]+[Recall] (Save) on the front panel to save the file in the name “List01 csv” (example).Press [Enter] to confirm.
7. Press [Esc] to go back to the previous interface. The configured “List01 csv” file will appear in the interface, as shown by the red box below.
Copyright ©ITECH Electronic Co., Ltd. 62
List Function
Configure the List parameters under three-phase mode
List parameter configuration under the three-phase mode differs from that under the single-phase mode. Other operating steps remain the same. List parameter configuration interface under the three-phase mode is shown in the figure below. The user can set a series of parameters such as waveform and frequency of each step in the List interface. Press soft key [Insert] and the system defaults to insert this single step under the three-phase balanc e mode. The three-phase paramet ers remain co nsistent.
To set parameters of each phase, click [More] to appear a detailed interface of List single-step parameter configuration under the three-phase mode. The user can complete all configurations of the three-phase parameters, as shown in the figure below. After configuring, go back to the List interface. Parameters with inconsistent three-phase are marked with a “*” at front, as shown in the red box above. The list only displays A-phase parameters.
Copyright ©ITECH Electronic Co., Ltd. 63
Parameter
Explain
A-B-C
Switch A/B/C phase to set the parameters quickly.
Insert
Press it to insert a single step behind the current single step.
Delete
Press it to delete the cur rent singl e step.
Next Record
Press it to select next single step.
Pre Record
Press it to select the previous step.
Configure
Download configuration parameter s.
Descri ption of soft keys under three-phase mode:
List Function
Edit the saved List file
The user ca n r em odi fy t he li st fi l e st ored in the devi ce b ased on t h e req ui r ement. The detailed operation st eps are as follows:
1. Press [List] on the front panel to enter the List function configuration interface, select soft key [standard].
2. Press [Edit Current] to enter the saved List01 csv fi le.
3. Edit the saved List 02 csv file, as shown in the figure below.
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5. After editing, press [Shift]+[Recall] (Save) to save the file.
List Function
Recall List file
Import List file
If several List files are edited, press Recall to recall the List file to be tested. Detailed operation steps are as below:
1. Press [List] on the front panel to enter the List function configuration interface.
2. Press [Recall Config], select the saved List01 csv file, and press [Enter] to enter the file.
IT7600 seri es supp ort i mport f unction of list files. T he user can fi ni sh the editi ng of List file in Excel and import it into the software. This function simplifies the List file edit and facilitates user operation. Detailed operation steps are as below:
1. Create a new Excel document on local PC and name it List02.
2. Open the Excel document and save it as in “other formats” i. e. “(*.csv)”.
3. Open the List02.csv document and edit the List. Set every step of the List and corres ponding para m eters and save the document in the USB disk.
List import file formats under single-phase mode:
List import file formats under three-phase mode: (The three same No. values correspon d to A/ B/C phase parameters of t his step).
Copyright ©ITECH Electronic Co., Ltd. 65
List Function
Wave
Code
Sin
4
Squre
0
Triangle
1
Exp
5
Ramp_rise
2
Ramp_fall
3
Sin_Pos
14
Sin_Neg
15
THDWave
13
2nd_Step
6
2nd_impulse
7
8~12
During the editing of the CSV files, corresponding waveform codes are as shown below.
Self-defined waves
4. Insert the USB disk into the USB interface of the front panel. Press [List] on the front panel to enter the List funct ion configuration interface.
5. Press [Reca ll Config]. Select the List02 csv file and open it. The List file will be imported, as shown in the figure below.
Copyright ©ITECH Electronic Co., Ltd. 66
List Function
6. Press soft key [Edit Current], all parameters of the list document will display, as shown in the figure below.
Export List file
After editing the List file, the user can directly save it into the device or export and save it into the peripheral memory disc. The exported List is saved in the format of. ( *.csv). Detai led operation steps are as below:
1. Insert the U disk into the USB interface of the front panel.
2. Press [List] on the front panel to enter the List function configuration interface.
3. Press [Export Config]. Select the saved List02 csv file, press [Enter] to confirm. This file will be exported into the USB disk.
Copyright ©ITECH Electronic Co., Ltd. 67
Run List file
List Function
The user can run power the created List file as needed to enable outputting of corresponding waveform sequence by the power supply. Detailed operation steps are as below:
1. Press [On] on the front panel. The power supply will start running once the trigger si gnal is recei ved, a cc ording to the sel ect ed tr i gger mode. “ Ru nni ng” will appear in the right lower corner of the interface, as shown in the figure below.
2. Press [Scope] to display the wave.
Set trigger source
IT7600 series has four trigger source to choose: trigger by keys
(Key),Software trigger (Software),Bus trigger (Bus) and External signal trigger (External).(ref er to 3.15Trigger Function for more details).You can select tr igger source according to various test requirements

8.2 Setting of Surge/trapped Configuration

IT7600 pro vides surge/trap simulat ion. The user can add surge/t rap to simulate abnormal voltage fluctuation on the basis of outputting Sin wave, and test usage of the D U T under this circumst ance.
Operating steps
1. Press [List] on the front panel to enter the List function configuration interface.
Press [Surge-Trap] in the List interface to enter the surge/trap parameter
2.
setup interface, as shown in the figure below.
Copyright ©ITECH Electronic Co., Ltd. 68
Parameter
Explain
AC
Set the AC signal am plitude (RMS).
Freq
Set the AC signal frequency.
Period
Set the AC signal period.
Width
Set the surge/trap width.
Percent
Set the percentage of the surge/trap amplitude to AC signal amplitude (RM S).
Parameters of the surge/trap edit zone are as follows:
List Function
Press [Trig Ctr] to set th e Off/On state of trigger control.
3.
Off: run the set surg e/trap based on the time. On: run the set surge/t rap after receiving the t rigger signal.
4. After setting the parameters, press [On] on the front panel. Then press [Scope], and the following waveform interface wi ll appear
Copyright ©ITECH Electronic Co., Ltd. 69
List Function

8.3 Self-defined Waveform Function

Self-defined Wave Edit is mainly used for selecting corresponding waveform during List operation. The new waveform file, after saving, will be added after the original waveform file. The user can self-define five waveform files at maximum.
Create a new waveform file
1. Press [List] on the front panel, and enter the [Self-defined Wave Edit] interface to configure the wavefor m, as shown i n the figure below.
Recall : recall the saved w aveform file. Save/Exit: save and edit the waveform file. Export: export the waveform file.
Copyright ©ITECH Electronic Co., Ltd. 70
Delete: delete the waveform file.
2. Press [New] and create a new waveform file.
3. Set “Current Index” and “Value” in the waveform fi le.
X1 X10 X 100: multiples of C urrent Index. Right: Right move current index, max 1023 Left: Left move current index, min 0 +: increase the current Value, max. 1.0.
-: decrease t he current Value, min. -1.0.
List Function
4. Press [Save/Edit]
to Save the set wav eform file
Import a self-defined waveform file
IT7600 series provide external import function of self-defined waveform file. The user can f i ni sh t he edi ti ng of Li st fil e in Ex cel and import i t int o the sof tw ar e. This f unction simplifies the List file edit and facil itates user operation.
Detailed operation steps are as below:
1. Create a new Excel document on local PC and name it harWave.
2. Open the Excel document and save it as in “other formats” in “( *.csv)”.
3. Open the harWa ve cs v fi l e and edi t t he w avefor m. S et e very st e p of t he Li st and corresponding parameters (At maximum of 1,024 coordinate points can be set, and o nly first 9 coor di nat e poi nts ar e di splayed below) and s a ve the file in the USB disk.
4. Insert the USB disk i nt o the US B i nt erf ace of t he fr ont panel . Press [List] on
the front panel to enter the List function configuration interface. Press soft key [Self-defined Wave Edit].
5. Press soft key [Recall]. Select the harWave csv file. Press [Enter] for
confirmation. This List file wil l be imported. As show n below.
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List Function
6. Press soft key [Save/Edit] to save the self-defined waveform file. During
List operation, the self-defined waveform file will be added in the correspon ding waveform selecti on list. As shown by the red box below.
Export a self-defined waveform file
1. Insert the USB disk into the USB interface of the f ront panel.
2. Press [List] on the front panel for List function configuration. Press soft key
[Self-defined W ave Edit].
3. Press soft key [Export]. Select the saved harWave csv file. Press [Enter]
for confirmation. This file wil l be exported into the USB disk.

8.4 THD Wave

The distorted waveform can simulate voltage harmonic wave in the circuit. The user can set the extent to which t he output voltage waveform deviat es from the Sin wave vol tage and test the usage of the DUT under this circum stance.
Copyright ©ITECH Electronic Co., Ltd. 72
Operating steps
Parameter
Explain
Thd Order
Set the order number.
Thd Value
Set the corresponding harmonic distortion factor with in the range 0-0.3.
Thd Phase
Set the corresponding harmonic phase within the range 0°-360°.
Clean
Clear all the set THD waveforms.
Config
Configure the THD waveform.
Next
View next THD parameter.
Prev
View the previous THD parameter.
Delete
Delete the THD parameter.
1. Select the wave in the main interface, the tab “THD Config” will appear
List Function
under the page. Press [THD Config] to enter the THD Wave Configure interface, as shown in the figure below.
2. Set the harmonic distortion waveform, and press [Enter]. The set parameter w ill be displayed in the ri ght zone, as shown in the figure below.
Copyright ©ITECH Electronic Co., Ltd. 73
List Function
3. Then press [Shift]+[Recall] (Save) on the front panel to save this parameter.
Copyright ©ITECH Electronic Co., Ltd. 74
Chapter9 Technical Specifi cat ions
This chapter will introduce the main technical parameters of IT7600, such as rated voltage/current/power and so on. Besides, this part will introduce the worki ng environment and storage temp erature.

9.1 Main technical parameters

Parameter IT7622 V1.3
AC Input

Technical Specifications

Voltage
Phase
Frequency
Max.Current
Power Factor
Max.output power
Voltage range
Voltage resolution
Voltage ac curacy
Temp. coefficient
Max Current(rms)
220Vac±10%or 110Vac±10%
single phase
47-63Hz 20A/40A
0.7(typical)
AC Output
750VA
2V-300V,1V-150V/2V-300V Auto
10mV
*1
±0.2%+(0.2%+0.2%×Kfreq)×FS*2
±(0.04% per degree from 25℃) 1-150Vac 0-6Arms 2-300Vac 0-3Arms 1-150Vac 0-18Apeak
Max Current(peak)
2-300Vac 0-9Apeak
≤0.5% at 10-500Hz (Resistive Load)
Total Har mo nic Distortion(T.H.D)
*3
≤2% at 501-5000Hz (Resistive Load)
Crest Factor
Line Regul ation
Load Regulation
Response Time
Output phase
≤0.1%FS(Resistive Load) ≤0.5%FS(Resist ive Load)
≤100us(typical)
single phase
3
DC Output
Max.output power
Copyright ©ITECH Electronic Co., Ltd. 75
375W
Technical Specifications
Accuracy
coefficient
coefficient
coefficient
Voltage output
Voltage resolution
Voltage output and readb ack
Temp. coefficient
Current range
Current resolution
Current readback accur acy
Power meter accuracy
Peak 300mVp-p
Voltage ripple
Rms
Range
Resolution
AC Voltage
Accuracy
Meter
±200V/±400V
*6
10mV
±(0.2%+0.2%FS)*7
±(0.04% per degree from 25℃)
3A/1.5A
10mA
*7
±(0.3%+0.3%FS) ±(0.4%+0.4%FS)
*7
150mVrms
0-300Vac
10mV
±(0.2%+0.2%FS)
AC
Current(rms)
AC Current( peak)
Power
Tem p .
Range
Resolution
Accuracy
Tem p .
Range
Resolution
Accuracy
Tem p .
Range
Accuracy
Tem p .
coefficient
±(0.04% per degree from 25℃)
0-6Arms
10mA
±0.3%+(0.3%+0.2%×Kfreq)×FS
±(0.04% per degree from 25℃)
0-18Apeak
10mA
±0.3%+(0.3%+0.2%×Kfreq)×FS
±(0.04% per degree from 25℃)
10mW
±0.4%+(0.4%+0.2%×Kfreq)×FS
±(0.04% per degree from 25℃)
*2
*2
*2
Range 0-360°
Phase Angle
Frequency
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Resolution 1°
Accuracy
Range
Resolution
±1°(45-65Hz)
10HZ-5KHz
0.1Hz
*5
Technical Specifications
Protection
Interface
Dimension(WxHxD)
*1
: Precondition for voltage accuracy:Slow loop speed:10-100Hz,Fast loop
speed:10-5KHz;
*2
: FS= Full Scale,Vrms=300Vac;Irms=6A;Ipk=18A;P=750VA;
*3
: The minimum voltage of THD test is 10Vac (Auto mode) and 20Vac (High
mode). The maximum distortion test is carried out by outputting the maximum current
to linear load under 125Vac (Auto mode) and 250Vac (300V mode).
*4
: The test frequency accuracy should ensure that the minimum voltage is
30Vac.
*5
: Testing premi se is in Fast mode
*6
: The minimum voltage setting must not be less than 50Vdc.
*7
: FS=full : Vdc=424Vdc; Idc=6A; P=375 W.
Accuracy ±0.1%+0.1Hz(10Hz-999.9Hz)/±0.1%+1Hz(1KHz-5KHz)
Other
OVP、OPP、OCP、OTP
GPIB、USB、LAN、RS232、CAN
3u
*4
Parameter IT7624 V1.4
AC Input
Voltage
Phase
Frequency
Max.Current
Power Factor
Max.output power
Voltage range
Voltage resolution
Voltage ac curacy
AC Output
*1
±0.2%+(0.2%+0.2%×Kfreq)×FS*2
220Vac±10% or 110Vac±10%
single phase
10-5KHz 30A/60A
0.7(typical)
1.5KVA
2V-300V, 1V-150V/2V-300V Auto
10mV
Temp. coeff icient ±(0.04% per degree from 25°C)
1-150Vac 0-12Arms
Max Current(rms)
2-300Vac 0-6Arms
Copyright ©ITECH Electronic Co., Ltd. 77
Max Current(peak)
Voltage output and readb ack
Accuracy
Temp.
coefficient
Temp.
coefficient
Technical Specifications
1-150Vac 0-36Apeak 2-300Vac 0-18Apeak
Total Har mo nic Distortion(T.H.D)
Crest Factor
Line Regul ation
Load Regulation
Response Time
Output phase
Max.output power
Voltage output
Voltage resolution
Temp. coeff icient ±(0.04% per degree from 25°C)
Current range
*3
≤0.5% at 10-5 00Hz (Resistive Load)
≤2% at 501-5000Hz (Resistive Load)
3
≤0.1%FS(Resistive Load) ≤0.5%FS(Resistive Load)
≤100us(typical)
single phase
DC Output
750W
*6
±212V/±424V
10mV
±(0.2%+0.2%FS)*7
6A/3A
Current resolution
Current readback accur acy
Power meter accuracy
Peak 300mVp-p
Voltage ripple
Rms
Resolution
AC Voltage
AC
Current(rms)
Accuracy
Resolution
Accuracy
Range
Range
10mA
*7
±(0.3%+0.3%FS) ±(0.4%+0.4%FS)
*7
150mVrms
Meter
0-300Vac
10mV
±(0.2%+0.2%FS)
±(0.04% per degree from 25°C)
0-12Arms
10mA
*2
±0.3%+(0.3%+0.2%×Kfreq)×FS
±(0.04% per degree from 25°C)
Range
AC Current( peak)
Resolution
Copyright ©ITECH Electronic Co., Ltd. 78
0-36Apeak
10mA
Technical Specifications
Temp.
coefficient
Temp.
coefficient
Power
Phase Angle
Frequency
Protection
Accuracy
±0.3%+(0.3%+0.2%×Kfreq)×FS
*2
±(0.04% per degree from 25°C)
Resolution
Accuracy
±0.4%+(0.4%+0.2%×Kfreq)×FS
10mW
*2
±(0.04% per degree from 25°C)
Range 0-360°
Resolution 1°
Accuracy
Range
Resolution
±1°(45-65Hz)
10-5KHz
0.1Hz
*5
Accuracy ±0.1%+0.1Hz(10Hz-999.9Hz)/±0.1%+1Hz(1KHz-5KHz)
Other
OVP, OPP, OCP, OTP
*4
Interface
Dimension(WxHxD)
*1
: Precondition for voltage accuracy: Slow loop speed: 10-100Hz; Fast loop
speed: 10-5KHz.
*2
: FS= Full Scale: Vrms=300Vac, Irms=12A; Ipk=36A; P=1500VA.
*3
: The minimum voltage of THD test is 10Vac (Auto mode) and 20Vac (High
mode). The maximum distortion test is carried out by outputting the maximum curren t
to linear load under 125Vac (Auto mode) and 250Vac (300V mode).
*4
: The test frequency accuracy should ensure that the minimum voltage is
30Vac.
*5
: Testing premi se is in Fast mode
*6
: The minimum voltage setting must not be less than 50Vdc.
*7
: FS=full: Vdc=424Vdc; Idc=6A; P=750W.
Parameter IT7626 V1.6
GPIB, USB, LAN, RS232, CAN
3u
AC Input
Voltage
Phase
Frequency
Copyright ©ITECH Electronic Co., Ltd. 79
220Vac±10%
single phase
10-5kHz
Technical Specifications
Voltage output and readb ack
Accuracy
Max.Current
Power Factor
Max.output power
Voltage range
Voltage resolution
Voltage ac curacy
*1
±0.2%+(0.2%+0.2%×Kfreq)×FS*2
Temp. coeff icient ±(0.04% per degree fro m 25°C)
1-150Vac 0-24Arms
Max Current(rms)
2-300Vac 0-12Arms 1-150Vac 0-72Apeak
Max Current(peak)
2-300Vac 0-36Apeak
Total Har mo nic Distortion(T.H.D)
*3
60A
0.7(typical)
AC Output
3KVA
2V-300V, 1V-150V/2V-300V Auto
10mV
≤0.5% at 10-5 00Hz (Resistive Load)
≤2% at 501-5000Hz (Resistive Load)
Crest Factor
Line Regul ation
load regulation
dynamic response time
output pha se Singl e phase
≤0.1%FS(Resistive Load) ≤0.5%FS(Resistive Load)
≤100us(typical)
3
DC Output
Max.output power
Voltage output
Voltage resolution
1.5KW
±212V/±424V
10mV
*6
±(0.2%+0.2%FS)*7
Temp. coeff icient ±(0.04% per degree fro m 25°C)
Current range
Current resolution
Current r eadback accuracy
±(0.3%+0.3%FS)
12A/6A
10mA
*7
Power meter accuracy ±(0.4%+0.4%FS)*7
Peak 300mVp-p
Voltage ripple
Rms 150mVrms
Copyright ©ITECH Electronic Co., Ltd. 80
Meter
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Technical Specifications
AC Voltage
AC
Current(rms)
AC Current( peak)
Power
Range
Resolution
Accuracy
Range
Resolution
Accuracy
Range
Resolution
Accuracy
Resolution
Accuracy
0-300Vac
10mV
±(0.2%+0.2%FS)
±(0.04% per degree from 25°C)
0-24Arms
10mA
±0.3%+(0.3%+0.2%×Kfreq)×FS
±(0.04% per degree from 25°C)
0-72Apeak
10mA
±0.3%+(0.3%+0.2%×Kfreq)×FS
±(0.04% per degree from 25°C)
10mW
±0.4%+(0.4%+0.2%×Kfreq)×FS
*2
*2
*2
Phase Angle
Frequency
Protection
Interface
Memory
Dimension(WxHxD)
Weight
±(0.04% per degree from 25°C)
Range 0-360°
Resolution 1°
Accuracy
Range
Resolution
Accuracy ±0.1%+0.1Hz(45Hz-999.9Hz)/±0.1%+1Hz(1KHz-5KHz)*4
±1°(45-65Hz)
10-5KHz
0.1Hz
*5
Other
OVP, OPP, OCP, OTP
GPIB, USB, LAN, RS232, CAN
10 groups
6u
100Kg
*1
: Preconditions for voltage accuracy: Slow loop speed: 10-100Hz; Fast loop
speed: 10-5KHz.
Copyright ©ITECH Electronic Co., Ltd. 81
Technical Specifications
*2
: FS=full scale: Vrms=300Vac, Irms=24A; Ipk=72A; P=3000V A .
*3
: The minimum voltage of THD test is 10Vac (Auto mode) and 20Vac (High
mode). The maximum distortion test is carried out by outputting the maximum current
to linear load under 125Vac (Auto mode) and 250Vac (300V mode).
*4
: The test frequency accuracy should ensure that the minimum voltage is
30Vac.
*5
: Testing premise is in Fast mode
*6
: The minimum voltage setting must not be less than 50Vdc.
*7
: FS=full scale: Vdc=424Vdc; Idc=12A; P=1500W.
Parameter IT7627 V1.3
AC Input
Voltage
Phase
Frequency
Max.Current
Power Factor
Output phase
Max.output power
Max.output power of each phase
Voltage range
Voltage resolution
Voltage ac curacy
*1
±0.2%+(0.2%+0.2%×Kfreq)×FS*2
Temp. coeff icient ±(0.04% per degree from 25°C)
Max.Current
(1φ)
RMS 72A/36A
Peak(CF=3) 216A/108A*8
AC Output
2V-300V, 1V-150V/2V-300V Auto
380Vac±10%(Y)
3ø
10-5kHz
60A
0.7(typical)
1φ or 3φ
9KVA 3KVA
10mV
*8
Max.Current
(3φ)
Total Har mo nic Distortion(T.H.D)
RMS 24A/12A
Peak(CF=3) 72A/36A
*3
≤0.5% at 10-5 00Hz (Resistive Load)
≤2% at 501-5000Hz (Resistive Load)
Crest Factor
Line Regul ation
Load Regulation
Copyright ©ITECH Electronic Co., Ltd. 82
≤0.1%FS(Resistive Load) ≤0.5%FS(Resistive Load)
3
Technical Specifications
Voltage output and readb ack
accuracy
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Dynamic response time
Max.output power
Voltage output
Voltage resolution
Temp. coeff icient ±(0.04% per degree from 25°C)
Current range
Current resolution
Readback accuracy current
Power meter accuracy
Voltage ripple
≤200us(typical)
DC Output
4.5KW
±200V/±400V
10mV
±(0.2%+0.2%FS)*7
36A/18A
10mA ±(0.3%+0.3%FS) ±(0.4%+0.4%FS)
Peak 500mVp-p
Rms
200mVrms
*6
*7
*7
AC Voltage
AC
Current(rms)
AC
Current(peak)
Meter
Range
Resolution
Accuracy
0-300Vac
10mV
±(0.2%+0.2%FS)
±(0.04% per degree from 25°C)
Range
Resolution
Accuracy
±0.3%+(0.3%+0.2%×Kfreq)×FS
0-72Arms
10mA
*2
±(0.04% per degree from 25°C)
Range
Resolution
Accuracy
±0.3%+(0.3%+0.2%×Kfreq)×FS
0-216Apeak
10mA
*2
±(0.04% per degree from 25°C)
Power
Resolution
Accuracy
±0.4%+(0.4%+0.2%×Kfreq)×FS
10mW
*2
±(0.04% per degree from 25°C)
Phase Angle Range 0-360°
Copyright ©ITECH Electronic Co., Ltd. 83
Resolution 1°
Dimension
(WxHxD)
Accuracy
±1°(45-65Hz)
Technical Specifications
*5
Frequency
Protection
Interface
Memory
Range
Resolution
Accuracy ±0.1%+0.1Hz(45Hz-999.9Hz)/±0.1%+1Hz(1KHz-5KHz)
10-5KHz
0.1Hz
*4
Other
OVP, OPP, OCP, OTP
GPIB, USB, LAN, RS232, CAN
10 groups
24u
*1
: Preconditions for voltage accuracy: Slow loop speed: 10-100Hz; Fast loop
speed: 10-5KHz.
*2
: FS=full scale: Irms=72 A; Ipk=216A;P=9000VA;
*3
: The minimum voltage of THD test is 10Vac
The maximum distortion test is carried out by outputting the maximum current to linear load under 125Vac (Auto mode) and 250Vac (300V mode).
*4
: The test frequency accuracy should ensure that the minimum voltage is
30Vac.
*5
: Testing premise is in Fast mode
*6
: The minimum voltage setting must not be less than 50Vdc.
*7
: FS=full scale: Vdc=400Vdc;Idc=36A; P=4500W;
*8
: The maximum c urrent range is 90% in the parallel mode.
Parameter IT7628 V1.4
AC Input
Voltage
Phase
Frequency
Max.Current
Power Factor
AC Output
Output phase
Max.output power
Copyright ©ITECH Electronic Co., Ltd. 84
380Vac±10%(Y)
3φ
10-5kHz
120A
0.7(typical)
1φ or 3φ
18KVA
Technical Specifications
Voltage output and Readback
accuracy
Max.output power of each phase
Voltage range
Voltage resolution
Voltage ac curacy
*1
±0.2%+(0.2%+0.2%×Kfreq)×FS*2
Temp. coeff icient ±(0.04% per degree from 25°C)
Max.Current
(1φ)
Max.Current
(3φ)
Total Har mo nic Distortion(T.H.D)
Crest Factor
Line Regul ation
Load Regulation
RMS 144A/72A
Peak(CF=3) 432A/216A*8
RMS 48A/24A
Peak(CF=3) 144A/72A
*3
6KVA
2V-300V, 1V-150V/2V-300V Auto
10mV
*8
≤0.5% at 10-5 00Hz (Resistive Load)
≤2% at 501-5000Hz (Resistive Load)
3
≤0.1%FS(Resistive Load) ≤0.5%FS(Resistive Load)
Dynamic response time
Max.output power 9KW
Voltage output ±200V/±400V*6
Voltage resolution 10mV
Temp. coeff icient ±(0.04% per degree from 25°C)
Current range
Current resolution
Current readback accur acy
Power meter accuracy
Voltage ripple
≤200us(typical)
DC Output
±(0.2%+0.2%FS)*7
72A/36A
10mA ±(0.3%+0.3%FS)*7 ±(0.4%+0.4%FS)
Peak 600mVp-p
Rms
300mVrms
*7
Meter
Range
AC Voltage
Copyright ©ITECH Electronic Co., Ltd. 85
Resolution
Accuracy
0-300Vac
10mV
±(0.2%+0.2%FS)
Technical Specifications
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Temp.
coefficient
Dimension
(WxHxD)
±(0.04% per degree from 25°C)
AC
Current(rms)
AC
Current(peak)
Power
Phase Angle
Range
Resolution
Accuracy
±0.3%+(0.3%+0.2%×Kfreq)×FS
0-144Arms
10mA
*2
±(0.04% per degree from 25°C)
Range
Resolution
Accuracy
±0.3%+(0.3%+0.2%×Kfreq)×FS
0-432Apeak
10mA
*2
±(0.04% per degree from 25°C)
Resolution
Accuracy
±0.4%+(0.4%+0.2%×Kfreq)×FS
10mW
*2
±(0.04% per degree from 25°C)
Range 0-360°
Resolution 1°
Accuracy
±1°(45-65Hz)
*5
Frequency
Protection
Interface
Range
Resolution
Accuracy ±0.1%+0.1Hz(45Hz-999.9Hz)/±0.1%+1Hz(1KHz-5KHz)
10-5KHz
0.1Hz
*4
Other
OVP, OPP, OCP, OTP
GPIB, USB, LAN, RS232, CAN
37u
*1
: Meet the voltage accuracy requirements: Slow loop speed: 10-100Hz; Fast
loop speed: 10-5KHz.
*2
: FS corresp onds to the ful l range:Vrms=300Vac;Irms=144 A;
Ipk=432A;P=18KVA;
*3
: The minimum voltage of THD test is 10Vac (Auto mode) and 20Vac (High
mode). The maximum distortion test is carried out by outputting the maximum current
to linear load under 125Vac (Auto mode) and 250Vac (300V mode).
*4
: The test frequency accuracy should ensure that the minimum voltage is
30Vac.
*5
: The t est mode is Fast.
Copyright ©ITECH Electronic Co., Ltd. 86
*6
: The minimum voltage setting must not be less than 50Vdc.
*7
: FS corresp onds to the ful l range: Vdc=400Vdc;Idc=7 2A ;P=9000W;
*8
: The maximum current range is 90% in the parallel mode.

9.2 Supplemental characteristics

State storage capaci ty
10sets
Recommended calibr ation frequency
once a year
Cooli ng style
fans
Technical Specifications
Copyright ©ITECH Electronic Co., Ltd. 87
IT7600 have four standard communication interfaces: LAN, USB, RS232 and
Pin
description
1
connectionless
2
TXD,transmit data
3
RXD,receive dat a
4
connectionless
5
GND, ground
6
connectionless
7
CTS, clear transfer
8
RTS, ready to transfer
9
connectionless
GPIB. The customer ca n choose any one according t o his demands.

10.1 RS232 Interface

There is a DB9 connector at the rear of the power supply, when connecting to computer, you need to select a cable with COM port on bot h side; To active you need to press [Shift]+[Setup] (Menu) button to enter the menu item Communication Configure to set the rele vant parameters, which is same with the PC communication configurati on. You could do the s econdary development with all SCPI commands.
Note
The setup about RS232 in the program should agree with the configuration in t he system set.If you want to change the communication parameters,please press [Shift]+[Setup] (Menu) button to enter the system set.

Remote Control

Chapter10 Remot e Cont r ol
RS-232 Data style
RS232 data includes start bit, parity bit, data bit and stop bit. The number of start bits can not be edited. The stop bit can choose 1 or 2. You can select the parity and stop bits vi a the front panel [Shift] + [Setup] (Menu) keys.
Baudrate
The front panel [Shift]+[Setup] (Menu) button allows the user t o se t baud rate which is stored in the non-v olatil e mem or y: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 (the other end) are required (not the modulating cable of the air-conditioner)
RS-232 plug pins
Copyright ©ITECH Electronic Co., Ltd. 88
Remote Control
Start Bit
8 Data Bits
Parity=None
Stop Bit
RS-232 Troubleshooting
In case of connection failure of RS 232, perfor m 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 co nfigured with one st art 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, int er nal wiring may b e incorrect.
The interface cable must be connected to the right serial port (COM1
and COM2) of the computer.
Communication Setup
Before the communication operation, please ensure the PC match the power supply to the PC's paramet ers in following items
baudrate: 960 0( 48 00, 96 00, 19200, 3 840 0, 5760 0, 115200).You could enter t he 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 bit s have odd parity NONE 8 data bits have no parity
Native machine address: (0 ~31, factory default i s 0)

10.2 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 su pply.
The functions of USB488 interface are as follows:
Interface is 488.2 USB4 88 interface Receive the following request: REN_CONTROL, GO_TO_LOCAL, and
LOCAL_LOCKOUT
When the int erf ace receives MsgID = T RIGGER USBT M C co mmand, i t will
transmit the TRI GG E R command to the function l ayer
The functions of power su pply’s USB 488 are as follows:
receive all SCPI commands device is SR 1 enabled device is R L1 enabled device is D T1 enabled
Copyright ©ITECH Electronic Co., Ltd. 89
Remote Control
Pin No.
Description
1
CANH

10.3 LAN Interface

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

10.4 GPIB Interface

First connect GPI B i nt erf ace to G PIB car d of PC wit h IEE E488 BUS. They must be sufficient contact and tighten the screws. Then set the address with in 0-31. Press [Shift]+[Setup] (Menu) on the front panel. Then press “Communication Configure” and set “Current Comm” as GPIB. Set the GPIB Address and press [Enter]. The power supply operates by setting the GPIB address on the front panel. The GPIB address is stored in non-volatile memory.

10.5 CAN Communication Port

. There is one DB25 interface at the rear panel, and the pin definition is shown below. The user can use thi s t er mi nal f or PC conn ecti on; t o act i vate con nect i on, be sure that the values set i n the System menu are same as the corresponding values set in PC.
Baud Rate
Under the Communication Configure menu of the front panel [Shift]+[Setup] (Menu), the user can set such parameters as Baudrate Prescaler, Propagation Time Segment and Phase Buffer Segment. Based on calculation conditions and formul as given by the interface, obtain specific Baud Rate val ue. The int erface provides conditi ons and formulas:
The Clock of C AN is 42MHz. Baudrate=42MHz/Prescaler/(BS1+BS2+1)
Examples for specific calculation m ethod of baud rate are given below: Set
formula: Baudrate=42MHz/6/(5+8+1)=500K, the Baud Rate is 500K.
CAN Pin Definition
Use DB25 interface for co nnection. CAN interface pi n is as follow s.
Note
CAN setting in the program shall be consistent with the one set in the System menu of front panel. To query and change, press the composite key [Shift] + [Setup](Menu) to enter the setting screen in System menu for query and change. For details, refer to 3.10 Menu Operation.
Prescaler=6, Bit segment1=5 and Bit segment2=8. According to the calculation
CAN interface pin
14 CANL
CAN Troubleshooting:
If CAN connect ion fails, check that:
1. The PC and power supply have same Baud rate.
2. Appropriate interface pin or adapter is used, as described in CAN
Copyright ©ITECH Electronic Co., Ltd. 90
Remote Control
connector.
3. The interface cable is correctly connected (CAN_H to CAN_H, CAN_L to CAN_L).
Setting Communication
Before communication operation, mat ch the pow er supply with the f oll owing PC parameters.
Prescal e (Pres): Set t his parameter as needed PTS (BS1): Set this par ameter as needed PBS (BS2): Set this para meter as needed Calcul ate the Baud Rate according to the above three parameters. ID (Can ID) : Set Can Port ID based on computer. IDs of other necessary ports (Other1-4 ID): Set IDs of other Can ports as
needed.
Copyright ©ITECH Electronic Co., Ltd. 91
Appendix
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
AWG
10
12
14
16
18
20
22
24
26
28
The
value( A)
40
25
20
13
10 7 5
3.5
2.5
1.7

Appendix

Specifications of Red and Black Test Lines

ITECH provi des you with optional red and black test lines, the user can choose the company's test line for testing. For specifications of ITECH test lines and maximum current values, refer to the t able below.
For maximum current of AWG copper w ire, refer to table blow.
Maximum current
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.
Copyright ©ITECH Electronic Co., Ltd. 92
Contact US
Thank you for purchasing ITECH product s. If you have any doubt about this product, please contact us a s follow.
1. Please refer to the CD-RO M of related user’s manual i n package.
2.
Visit ITECH websit e www.itechate.com.
3. Select the most convenient contact for further consultation.
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