I-Tech IT6322 Manual de usuario

Ver2.0/Oct, 2009/ IT6300-508

USER’S GUIDE

Programmable DC Power Supply

Model IT6322

2 USER’S GUIDE

Chapter1 Quick Start ·················································································

1.1 Front Panel & Rear Panel ····················································································

1.2 Preliminary Checkout ····················································································

1. Check the list of supplied items ···································································

2. Connect the power cord and turn on the power supply ·································

3. System Checkout ····················································································

4. Output Checkout ····················································································

5. If Power Supply Does Not Turn On ···································································

6. To Adjust the Carrying Handle ···································································

7. To Rack Mount the Instrument ···································································

Chapter 2 Specifications ················································································

2.1 Specications ····················································································

2.2 Supplemental Characteristics ····················································································

Chapter 3 Front-Panel Operation ·································································

3.1 Front-panel Operation Overview ··································································

3.2 Panel Description ····················································································

3.3 VFD Description and Wiring Diagram ··································································

3.4 Menu Descriptions ····················································································

3.5 Panel Operation ····················································································

3.6 Menu Function ····················································································

■ Power Cong ····················································································

■ System Set ····················································································

■ Power Information ····················································································

Chapter 4 Remote Operation Mode ·································································

4.1 Communication cable ····················································································

4.2 Communication between Power Supply and PC···············································

Introduction

USER’S GUIDE 3

IT6322 Programmable DC Power Supplies

General information

The following safety precautions should be observed before using this product and any

associated instrumentations. Although some instruments and accessories would be used

with non-hazardous voltages, there are situations where hazardous conditions may be

present.

This product is intended for use by qualied personnel who recognize shock hazards and

are familiar with the safety precautions required to avoid possible injury. Read and follow

all installation, operation, and maintenance information carefully before using the product.

Refer to this manual for complete product specications.

If the product is used in a manner not specied, the protection provided by the product may

be impaired.

Before performing any maintenance, disconnect the line cord and all test cables.

Protection from electric shock

Operators of this instrument must be protected from electric shock at all times. The

responsible body must ensure that operators are prevented access and/or insulated from

every connection point. In some cases, connections must be exposed to potential human

contact. Product operators in these circumstances must be trained to protect themselves

from the risk of electric shock. If the circuit is capable of operating at or above 1000 volts, no

conductive part of the circuit may be exposed.

Denition of users

Responsible body is the individual or group responsible for the use and maintenance of

equipment is operated within its specifications and operating limits, and for ensuring that

operators are adequately trained.

Operators use the product for its intended function. They must be trained in electrical safety

procedures and proper use of the instrument. They must be protected from electric shock

and contact with hazardous live circuits.

Service is only to be performed by qualied service personnel.

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

that might occur when using the electronic load.

4 USER’S GUIDE

About your safety

The following general safety precautions must be observed during all phases of operation

ofthis instrument. Failure to comply with these precautions or with specific warnings

elsewhere in this manual violates safety standards of design, manufacture, and intended

use of the instrument. ITECH assumes no liability for the customer’s failure to comply with

these requirements.

Safety symbols and terms

Certification and Warranty

Certication

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

factory.

Warranty

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

period of one year from date of delivery. During the warranty period we will, at its option,

either repair or replace products which prove to be defective. For warranty service, with the

exception of warranty options, this product must be returned to a service facility designated

by us. Customer shall prepay shipping charges by (and shall pay all duty and taxes) for

products returned to the supplier for warranty service. Except for products returned to

customer from another country, supplier 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

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.

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

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

instructions located in the manual.

High voltage danger.

Introduction

IT6300 3 channels power supply has high accuracy and high stability, also has the function

of the limit voltage, over current and over temperature protection. You can set the voltage

and value of from 0V to the max value in every channel. This series power supply can be

connected in series and in parallel connection, it could improve the output ability of the

voltage and the current value to twice. It is the best choice for the quality test in the scientic

research laboratory and the product line.

■ All of 3 channels can output and change voltage

■ Can be connected in series or parallel connection

■ Voltage and current of 3 channels can be displayed at the same time

■ Small size with 1/2 2U

■ VFD display

■ High resolution and high accuracy

■ Output on/off

■ Limit voltage, over current and power protection

■ Low ripple and low noise

■ Communication port: USB/GPIB/RS232

■ Free software for control

■ Fifty operation states storage

■ Set voltage and current value with rotary knob

■ Set output time1~999999S

USER’S GUIDE 5

1.1 Front Panel & Rear Panel

Cooling window

DB9 interface connector

110V/220V Power switch

Fuse

Power socket

Rear Panel

VFD display

Rotary knob

Power switch

Number keys and “Esc” key

Function key

UP, Down key and “Enter” ket

Output terminals

Front Panel

Chapter 1 Quick Start

One of the rst things you will do with your power supply is to become acquainted with the front panel. The

exercises in this chapter prepare the power supply for use and help you get familiar with some of its front-

panel operations.

345 6 7

51 42 3

Chapter 1 Quick Start

6 USER’S GUIDE

1.2 Preliminary Checkout

The following steps help you verify that the power supply is ready for use.

1. Check the list of supplied items

Verify that you have received the following items with your power supply. If anything is

missing, contact your nearest Sales Ofce.

■ One power cord for your location

■ This User’s Manual.

■ Calibration Report

■ Communication cable (optional)

2. Connect the power cord and turn on the power supply

When you turn on the power supply, the front-panel display will light up briefly while the

power supply performs its power-on self-test. All the VFD annunciators will light up at once.

To review the display with all annunciators, you can check if there is any stroke loss on any

annunciator. If there isn’t any response when you power on the power supply, please see

Section 5 on page 8 for some service information.

3. System Checkout

When the power supply was powered on,

the system will checkout it self, and VFD will

display as follows:

If EEPROM was damaged, the VFD will

display as follows:

If the latest operation data in EEPROM was

lost, the VFD will display as follows:

If the latest data about off-time in EEPROM

was lost, the VFD will display as follows:

If the calibration data in EEPROM was lost,

the VFD will display as follows:

System Test, Please wait!

EEPROM Error

Data Check Error

Load OffTime Fail

CH X Lost Calibration...

Note: “X” denotes the channel which

has lost calibration data.

Chapter1 Quick Reference

USER’S GUIDE 7

If the calibration data in EEPROM was error

or tthe information calibrated by factory was

lost, the VFD will display as follows:

10.000V

11.000V

3.000V

2.000A

3 .000A 3 .000A

Lost Factory Calibration

0.000V

0 .000V

<OFF>

VFD displays: the rst row is output voltage,

the second row is the state when the power

supply is on or current. or

Note: there will be a “?” on the VFD if there is error when the system checkout.

4. Output Checkout

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

and properly responds to operation from the front panel.

■Voltage Output Checkout

The following steps verify basic voltage functions without load.

1) Turn on the power supply.

2) Enable the outputs.

Notice: if the voltage value ash, then the power supply is in Set mode, ‘‘Set

mode’’ means that the VFD display shows the setting output voltage and

current. Or the power supply is in Meter mode, ‘Meter mode” means that the

VFD display shows the actual output voltage and current.

3) Check that the front-panel voltmeter properly responds to number keys.

Set some different voltage values, then wait till the Meter mode to check if the

VFD displayed voltage value is the same as the set voltage value, and to check

if the VFD displayed current value is nearly zero.

4) Ensure that the voltage can be adjusted from zero to the full rated value.

5) Check the voltage of the other two channels as above.

8 USER’S GUIDE

Chapter 1 Quick Start

1) Turn on the power supply.

2) Disable the output.

Press key to ensure that the output is disabled. The ON annunciator

is turned off.

3) Connect a short across (+) and (-) output terminals with an insulated test lead.

Use a wire size sufcient to handle the maximum current.

4) Set voltage value with 1V.

5) Enable the output.

Press key to ensure that the output is enabled.

6) Adjust the current value.

Set some different voltage values, then wait till the Meter mode to check if the

VFD displayed current value is the same as the set current value.

7) Ensure that the current can be adjusted from zero to the full rated value.

8) Turn off the power supply and remove the short wire from the output terminals.

9) Check the current value of the other two channels as above.

Out On/Off

5. If Power Supply Does Not Turn On

Use the following steps to help solve problems you might encounter when turning on the

instrument.

■ Current Output Current

The following steps check basic current functions with a short across the power supply’s

output.

1). Verify that there is AC power to the power supply.

First, verify that the power cord is rmly plugged into the power receptacle on the

rear panel of the power supply. You should also make sure that the power source

you plugged the power supply into is energized. Then, verify that the power supply

is turned on.

2). Verify the power-line voltage setting.

Chapter1 Quick Reference

USER’S GUIDE 9

The line voltage is set to the proper value for your country (110VAC or 220VAC)

when the power supply is shipped from the factory. Change the voltage setting if it’s

not correct.

3). Verify that the correct power-line fuse is installed.

If the fuse was damaged, please see the table below to replace the fuse for your

power supply.

Model Fuse Description

IT6322 Fuse 3.15A T250V(220V AC)

Fuse 6.30A T250V(110V AC)

6. To Adjust the Carrying Handle

To adjust the position, grasp the handle by the sides and pull outward. Then, rotate the

handle to the desired position.

Bench-top viewing positions

Carrying position

10 USER’S GUIDE

Chapter 1 Quick Start

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