I-Tech IT6720 User manual

Ver2.0/Jan, 2010/ IT6720

USER’S GUIDE

Digital Control Power Supply

Model IT6720

WARNING

Safety Regulations

To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel

only.

To avoid injuries, always disconnect power, discharge circuits, and remove external voltage

sources before touching components.

KEEP AWAY FROM LIVE CIRCUITS.

We cannot accept responsibility for any direct or indirect nancial damage or loss of prot

that might occur when using the power supply.

The instrument chassis and cover must be connected to an electrical ground.

Certication

We certify that this product met its published specifications at time of shipment from the

factory.

Notice

The information contained in this document is subject to change without notice.

Warranty

This hardware product is warranted against defects in material and workmanship for a

period of ONE year from date of delivery. IT6720 power supply for use with a hardware

product and when properly installed on that hardware product, are warranted not to fail to

execute their programming instructions due to defects in material and workmanship for a

period of 90 days from date of delivery. During the warranty period our company will either

repair or replace products which prove to be defective. Our company does not warranty that

the operation for the software rmware or hardware shall be uninterrupted or error free. For

warranty service, with the exception of warranty options, this product must be returned to a

service facility designated by our company. Customer shall prepay shipping charges by (and

shall pay all duty and taxes) for products returned to our place for warranty service. Our

company shall pay for return of products to Customer.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improper or inadequate

maintenance by the customer, customer-supplied software or interfacing, unauthorized

2 USER’S GUIDE

USER’S GUIDE 3

modication or misuse, operation outside of the environmental specications for the product,

or improper site preparation and maintenance.Product number or serial number has been

altered deleted, removed or were unable to identify. Damage from the accident, including but

not limited to lightning, water, re, abuse or negligence.

Compliance Statements

Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and

other European countries with separate collection systems)

Safety Symbols

About IT6720

With widest voltage and current range, IT6720digital DC power supplies are applied in many

elds.

With max power 100W and output adjustable in 60V/5A, auto control voltage/current slew

rate, power rate up to three times rapid than other similar products, a unit can replace three

models (60V*1.6A/ 32V*3A/ 20V*5A), reduce your repeat investment.

The ITECH product you have purchased is subject to

Directive 2002/96/EC of the European Parliament and

the Council of the European Union on waste electrical

and electronic equipment (WEEE) and, in jurisdictions

adopting that Directive, is marked as being put on

the market after August 13, 2005, and should not be

disposed of as unsorted municipal waste. Please utilize

your local WEEE collection facilities in the disposition

of this product and otherwise observe all applicable

requirements.

Connect it to safety earth ground using the wire recommended in the user’s manual.

The symbol on an instrument indicates that the user should refer to the operating

instructions located in the manual.

High voltage danger

Example:

When you set the output voltage as 60V, because

the max power of IT6720 is 100W, so the max output

current is 100W/60V=1.6A.

When you change the output voltage to 30V, the output

current is 100W/30V=3.2A.

Calculate according to the above way when the output

voltage is 20V, the output current should be 5A, but as

the max rating current of IT6720 is 8A, so the nal max

output current is 5A.

12 3 4 5

Power

100%

Function

• Fully digital control

• High resolution 10mV/1mA in Full range

• Low ripple and noise

• Bright and easy to read display (LED)

• Constant current and constant voltage output

• High reliability OVP/OCP/OTP protection

• Output on/off control

• Best performance /price ratio

• Storage for 4*100 preset voltage and current output

4 USER’S GUIDE

IT6720 output curve

Panel Layout

Main Power ON/OFF

Output ON/OFF Button

Voltage Value

Current Value

Step A + Memory A

Step C + Memory C

Step B + Memory B

Step D + Memory D

Left arrow + Memory AButton

Enter + Memory C Button

Keyboard (Shift)

Memory save (Shift)

Air flow input

Main Power ON/OFF

Output ON/OFF Button

Voltage Value

Current Value

Step A + Memory A

Step C + Memory C

Step B + Memory B

Step D + Memory D

Left arrow + Memory AButton

Enter + Memory C Button

Keyboard (Shift)

Memory save (Shift)

Air flow input

Output +

Output –

Ground

Rotary Encoder

Output OFF Indicator

Shift Indicator

Keyboard Lock Indicator

Memory mode Indicator

OVP Indicator

OCP Indicator

CV mode Indicator

CC mode Indicator

Voltage setup Indicator

Right arrow + Memory B Button

ShiftButton

Setup Display (Shift)

Function Setup (Shift)

Output +

Output –

Ground

Rotary Encoder

Output OFF Indicator

Shift Indicator

Keyboard Lock Indicator

Memory mode Indicator

OVP Indicator

OCP Indicator

CV mode Indicator

CC mode Indicator

Voltage setup Indicator

Right arrow + Memory B Button

ShiftButton

Setup Display (Shift)

Function Setup (Shift)

Panel Layout

USER’S GUIDE 5

Set V and I value + Memory D

Check out

Conrm whether the power supply has been destroyed in transportation, if there is any aw, please contact

the vender.

Conrm whether the AC input voltage of IT6720 comply with the standards of your country or region.

Quick Start

Note: If switching input voltage, operate through the back panel switch (110V/220V).

After the check of the above matters, power on by press

Setting the voltage

Press to light up the voltage setup

indicator B. It means IT6720 is in voltage

set mode, shown as g 1.

Press light up the voltage

setup indicator . Now the voltage will

rise/decline 1V once you rotary the knob

. Set the voltage to 12V.

DV/A

Setting the current

Press to light up the current setup

indicator A. IT6720 is in current set mode,

shown as g 2.

Press to adjust the setup

indicator to . Now the current will rise/

decline 1V once you rotary the knob .

Set the current to 4A.

DV/A

CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

Auto Range DC Power Supply

IT6720 60V/5A/100W

Preset voltage

Step indicator B

示灯

CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

Auto Range DC Power Supply

Preset current indicator

Step indicator A

IT6720 60V/5A/100W

Quick Start

6 USER’S GUIDE

Enable output

Press to enable the IT6720 output.

Voltage and current settings will be

wink for three seconds, and after that ,

the display value of numerical display

will change from the set value to actual

measured voltage and current value.

Power off lights will be turned off which

means the power is in output state.

Press again, you will shut power

supply’s output.

On/Off

CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply

Output off indicator

Cursor position Step voltage Step current

10V 1A

1V 0.1A

0.1V 0.01A

0.01V 0.001A

Step value for Cursor Position

Check the set voltage and current value

The power supply usually displays the actual voltage and current values. When you want to check

the preset voltage and current values, the unit will display automatically settings, press twice,

the settings will be displayed for three seconds.

Shift

Key lock function

This function can prevent error operation by unauthorized person. Press , after the was

lit on, press (Lock) , will be lit on, which means all keys on the panel except and

. Repeat above operation, key lock function will be disabled.

Shift

Lock

On/Off

Quick Start

USER’S GUIDE 7

OVP function

Press , and press for three

seconds, now the panel displays OVP,

shown as g 4.

Use and to set OVP

value.

DV/A

Shif

OCP function

Press to enter into OCP setting

interface after setting OVP value, use

and to set the OCP

value.

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

OVP voltage value

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

OCP current value

Note: If the OVP and OCP settings are lower than the actual voltage/current

value, the output of power supply will be turned off. The default settings of IT6720

are OVP=61V, OCP=5.1A.

Quick Start

8 USER’S GUIDE

Key sound (BEEP)

Press to enter the BEEP setting

Interface after finished the OCP

setting,select the ON/OFF state with

the knob .ON indicates there is

key sound,OFF means no.

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

Power address (ADD)

Press to enter the ADD setting

interface after finishing the BEEP

setting, select the and to

enter store address setting. ADD

range: 0~30, press to conrm.

Store group setting (GRP)

Press to enter into GRP interface

after setting the OCP value, use

and to select store group.

IT6720 allows customers to store 100

groups with A/B/C/D four set value for

every group.

Press to conrm the chosen group

and end the setup mode.

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

IT672060V/5A/100W

Auto Range DC Power Supply CV CC

OVPOCP

OFFShift

Lock Prog

ITECH

ABCD

Store operation

In the normal working mode, set the voltage/current value to be stored. Press and , now

the Cursor will wink together. Press any key in to save it.

Shift

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DV/A

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VVV

VVVV

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VVVVVVVVVVVVVVV

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DV/A

A C D

Quick Start

USER’S GUIDE 9

Recall operation

Press and , the indicator will be lit on, which means that IT6720 working in the

shortcuts mode. Press any key in , recall the preset voltage/current value

which has been stored.

When the power supply is on recall operation, that means all you can recall the parameters from the

store group. Press any key of to recall the stored parameter.

When the power supply is on recall operation are disabled, they only can

be used with key. Press , and press to exit recall function.CC

Shift

ShiftShift

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BBBBBBBBBBBBBB

DV/A

DDDDDDDDDDDDDD

VVVVVVVVVVVVVV

//////////////

VVV

VVVV

VVVVVVV

VVVVVVVV

VVVVVVVVVVVVVVV

AAAAAAAAAAAAAA

DV/A

AAAAA

AAAAAAAAAAAAAA

BBBBB

BBBBBBBBBBBBBB

DV/A

DDDDDDDDDDDDDD

VVVVVVVVVVVVVV

//////////////

VVV

VVVV

VVVVVVV

VVVVVVVV

VVVVVVVVVVVVVVV

AAAAAAAAAAAAAA

DV/A

AAAAA

AAAAAAAAAAAAAA

BBBBB

BBBBBBBBBBBBBB

DV/A

DDDDDDDDDDDDDD

VVVVVVVVVVVVVV

//////////////

VVV

VVVV

VVVVVVV

VVVVVVVV

VVVVVVVVVVVVVVV

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DV/A

BBB

ProgProg

Quick Start

10 USER’S GUIDE

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