ITech IT6721 User Manual

Download

Page 1

IT6721

Digital Control Power Supply

User ’s Manual

Access www.itechate.com for more products information

ITECH

Page 2

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 financial damage or loss of profit that might occur when using the power supply. The instrument chassis and cover must be connected to an electrical ground.

Certification

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. IT6721 power supply for use with a hardware product and w hen prop erly 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 firmware 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.

Page 3

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 modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation and maintenance.

Compliance Statements

Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems)

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.

Safety Symbols

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

High voltage danger

The symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.

Page 4

About IT6721

With widest voltage and current range, IT6721 digital DC power supplies are applied in many fields. With max power 180W and adjustable output in 60V/8A, auto control the voltage/current slew rate, the power rate three times rapid than other similar products, a unit can replace three models (60V*3A/ 30V*6A/ 20V*8A), reduce your repeat investment.

Example:

When you set the output voltage as 60V, because the max power of IT6721 is 180W, so the max output current is 180W/60V=3A. When you change the output voltage to 30V, the output current is 180W/30V=6A. Calculate according to above means: when the output voltage is 20V, the output current should be 9A, but because the rating max current of IT6721 is 8A, so the final output current value is 8A.

Function

 Fully digital control  High resolution 10mV/1mA in Full range  Low ripple and noise  Software calibration  Bright and easy to read display (VFD)  Constant current and constant voltage output  Selectable remote control keypads  High reliability OVP/OCP/OTP protection  Output on/off control  Best performance /price ratio  Storage for 4*100 preset voltage and current output

Power 100%

2468

IT6721 output curve

Page 5

Panel Layout

Voltage Value

Step B + Memory B

Step A + Memory A Step C + Memory C Step D + Memory D

Current Value

Memory save (Shift)

Left arrow + Memory A Button

Keyboard (Shift)

Enter + Memory C Button

IT6721 60V/8A/180W Auto Range DC Power Supply

Voltage setup Indicator CC mode Indicator

CV mode Indicator OCP Indicator

OVP Indicator Memory mode Indicator

Keyboard Lock Indicator Shift Indicator

Output OFF Indicator

Right arrow + Memory B Button Function Setup (Shift)

Rotary Encoder

Output ON/OFF Button

Air flow input

Main Power ON/OFF

Voltage / Current Selector + Memory D Button Setup Display (Shift)

Shift Button

Output +

–

Output Ground

Page 6

Quick Start

Check out

Confirm whether the power supply has been destroyed in transportation, if there is any flaw, please contact the vender. Confirm whether the AC input voltage of IT6721 comply with the standards of your country or region. Note: If switching input voltage, operate through the back panel switch (110V/220V).

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

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

Preset voltage

CV CC

Setting the voltage

Press to light up the voltage setup indicator B. It means IT6721 is in voltage set mode, shown as fig 1.

Press to light up the voltage setup indicator . Now the voltage

will rise/decline 1V once you rotary the knob . Set the voltage to 12V.

Setting the current

Press to light up the current setup indicator A. IT6721 is in current set mode, shown as fig 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.

V/ADV/A

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

Step indicator B

OVP OCP

Lock

OFF

Prog

Shift

CV CC

OVP OCP

Lock

OFF

Prog

Shift

Enable output

Press to enable the IT6721 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/OffOn/Off

Step indicator A

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

Preset current indicator

Output off indicator

CV CC

OVP OCP

Lock

OFF

Prog

Shift

Page 7

Step value for Cursor Position

Cursor position

A B C D

Step voltage

-----1V

0.1V

0.01V

Step current

0.1A

0.01A

0.001A

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.

Key lock function

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

will be lit on, which means all keys on the panel except and . Repeat above operation, key lock function will be disabled.

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

OVP function

Press , and press for

ShiftShift

three seconds, now the panel displays OVP, shown as fig 4.

Use and to set OVP

value.

V/ADV/A

CV CC

OVP OCP

Lock

Prog

OFF

Shift

OCP function

Press to enter into OCP setting interface after setting OVP value, use and to set the OCP 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 IT6721 are OVP=61V, OCP=5.1A.

OVP voltage value

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

OCP current value

CV CC

OVP OCP

Lock

OFF

Prog

Shift

Page 8

Key sound (BEEP)

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

CV CC

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.

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 confirm。

OVP OCP

Lock

OFF

Prog

Shift

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

CV CC

OVP OCP

Lock

OFF

Prog

Shift

Store group setting (GRP)

Press to enter the GRP interface after setting the key sound, use and to select store group. Press to confirm the chosen group and end the setup mode. IT6721 allows customers to store 100 groups with A/B/C/D four set value for every group.

IT6721 60V/8A/180W

ITECH

Auto Range DC Power Supply

CV CC

OVP OCP

Lock

OFF

Prog

Shift

Page 9

Store operation

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

ShiftShift

any key in to save it.

V/ADV/A

Recall operation

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

ShiftShift

IT6721working in the shortcuts mode. Press any key in ,

Prog

V/ADV/A

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

V/ADV/A

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

ShiftShift

function.

Faulty disposal

If the outputs is disabled:

1: Check whether voltage and current settings are zero, if so, reset voltage

and current value.

2: Check whether the indicator is lit on, if so, press to enable the outputs.

3: Check whether the indicators are lit on, if so, please reset according to the mentioned OVP/OCP/OCP means.

If the keypad is disabled, check whether the indicator is lit on, if so, unlock the keypads as the above means.

OFF

OVP

On/OffOn/Off

OCP

Lock

Page 10

6: Specifications

Specs

Specifications IT6721

Output Rating Voltage

Current

Power 180W

Load Regulation

Line Regulation

Programming Accuracy Voltage

Read back Accuracy

Ripple

Dimension

Voltage Current

Current

Voltage

Current

Voltage

Current

W*H*D

0~60V 0~8A

<0.01%+5mV

<0.01%+5mA

<0.01%+5mV <0.1%+5mA <0.05%+10mV

<0.3%+5mA

<0.05%+10mV

<0.3%+5mA <5mV rms <8mA rms 88*175*282(mm)

Weight

Net

<3.5Kg

Page 11

Memo

www.itechate.com

Page 12

Http://www.itechate.com

ITECH