User Manual OPX-93D

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Programmable DC Power Supply

User Manual

www.odacore.com

OPX-93D

Manual Part NO. 018OPX-93D-2.0

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Legal Notices

No part of this document may be photocopied, reproduced, or translated to another language without the prior another language without the prior agreement and written consent of ODA agreement and written consent of ODA Technologies.,Co.Ltd. as governed by Korea and international copyright laws.

Warranty Certification

The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions. Further, to the maximum extent permitted by applicable law, ODA disclaims all warranties, 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. ODA shall not be liable for errors or for incidental or be liable for errors or for incidental or consequential damages in connection with the furnishing, use, or performance of this document or of any information contained herein. Should ODA and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in the separate agreement shall control.

Assistance

This product comes with the standard product warranty. Warranty options, extended support contacts, product maintenance agreements and customer assistance agreements are also available.

Contact your nearest ODA Technologies. Sales and Service office for further information on ODA Technologies. full line of Support Programs. Refer to below information.

www.odacore.com oda@odacore.com 82-2-1800-8644

Waste Electrical and Electronic Equipment

The affixed product label (see right) indicates that you must not discard this electrical/electronic product in domestic household waste. Do not dispose in domestic household waste. To return unwanted products, contact our local ODA distributors, or call us for more information.

Manual Editions

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Safety Notices

The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings or instructions elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument.

ODA Technologies assumes no liability for the customer's failure to comply with these requirements.

understood and met.

of flammable gases or fumes.

Do not operate the instrument in the presence Do Not Operate in an Explosive Atmosphere is not customer accessible.

r o f r e p y l t c e r r o c t o n f i , t a h t e k il e h t r o

"

s l o b m y S y t e f a S

" med or

adhered to, could result in personal injury or The instrument contains an internal fuse, which notice until the indicated conditions are fully

Only qualified, service-trained personnel who Do Not Remove the Instrument Cover

Fuses death. Do not proceed beyond a WARNING

Make all connections to the unit before WARNING

applying power. Note the instrument's A WARNING notice denotes a hazard. It calls external markings described under attention to an operating procedure, practice,

of important data. Do not proceed beyond a hazard that could result in personal injury. CAUTION notice until the indicated conditions Verify that all safety precautions are taken.

CAUTION

Before Applying Power are fully understood and met.

(safety ground) at the power outlet. Any attention to an operating procedure, practice, or interruption of the protective (grounding) the like that, if not correctly performed or adhered conductor or disconnection of the protective to, could result in damage to the product or loss earth terminal will cause a potential shock

A CAUTION notice denotes a hazard. It calls In Case of Damage

Instruments that appear damaged or defective

chassis and cover must be connected to an qualified service personnel.

electrical ground. The instrument must be connected to the ac power mains through a grounded power cable, with the ground

Do not install substitute parts or perform any u nauthorized modification to the product. Return the product to an ODA Sales and Service Office for service and repair to ensure that safety

Ground the Instrument

This product is a Safety Class 1 instrument (provided with a protective earth terminal).

wire firmly connected to an electrical ground

features are maintained.

General Do Not Modify the Instrument

Do not use this product in any manner not

To minimize shock hazard, the instrument unintended operation until they can be repaired by specified by the manufacturer. The protective

features of this product may be impaired if it is used in a manner not specified in the operation instructions.

should be made inoperative and secured against

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Safety Symbol

Out position of a bi-stable

push switch Caution, risk of electric shock

Caution, hot surface Caution, refer to accompanying

documents y l p p u s f f O y

l p p u s n O

Standby supply. Unit is not completely disconnected from ac mains when switch is off

In position of a bi-stable push switch

Direct current

Earth (ground) terminal

Frame or chassis terminal

Protective earth ground terminal.

Alternating current

Both direct and alternating current Three phase alternating current

Terminal is at earth potential.

Neutral conductor on permanently installed equipment

Line conductor on

permanently installed equipment.

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1. Product Outline

⁶

1-1. Product Characteristics

⁶

General Functional Characteristics Remote Interface Characteristics

C lib i Ch i i

--- ---

Calibration Characteristics Factory Function Characteristics Self Test Characteristics

1-2. Accessories

⁷

Accessories

1-3. Product Inspection

7

Equipment Check

Bi hi Ch k

--- --- Biographic Check

1-4. Working Condition

⁸

1-5. Check Before Input Power

⁸

Check Power Cord

Check AC Input Power Switch

1-6. Check After Input Power

⁹

Check Sequence

--- ---

--- Earliest Setting Value(When Last state Mode is Disabled)

1-7. Product Installation

¹⁰

Cooling

Bench Operation

2. Front Panel, Rear Panel Structure & Function

¹¹

---

2-1. Front Panel Voltage & Current Setting

¹⁴

2-2. Rear Panel Structure

¹⁵

3. Operating Front Panel

¹⁶

Overview

¹⁶

--- ---

3-1. Constant Voltage Operation(CV)

¹⁷

3-2. Constant Current Operation(CC)

¹⁸

3-3. Remote Voltage Sensing

19

CV Regulation Output Rating Output Noise Stability

--- --- ---

Connecting Remote Voltage Sensing

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( )

3-4. Programming Over Voltage Protection(OVP)

²¹

3-5. Programming Over Current Protection(OCP)

²³

3-6. Programming Under Voltage Limit(UVL)

25

3-7. Programming Over Voltage Limit(OVL)

²⁶

3-8. Programming Under Current Limit(UCL)

²⁷

3-9. Programming Over Current Limit(OCL)

²⁸

29 --- --- --- ---

--- ---

3 10 KEY LOCK

²⁹

30 GPIB Set-Up

GPIB Installation Set-Up RS232C Set-Up

RS232C Installation Set-Up

3-12. V/I & LMT DISPLAY

---³⁴ --- ---

3-10. KEY LOCK 3-11. IO/Local

LMT DISPLAY Function V/I Function

3-13. Output ON/OFF

³⁵

3-14. Error Message Display

35

ERROR Check

--- ---

4. CALIBRATION

³⁶

4-1. Characteristics

³⁶

4-2. Preparing Accurate Calibration

³⁶

4-3. Performance of Measuring Instrument for Accurate Calibration

^{--- 37}

4-4. Measuring Technique

37

Equipment Connection

--- ---

Electronic Load

Current-Monitoring Resistor(shunt) DVM(Digital Volt Meter)

Programming Measuring Position

4-5. Calibration Using Front Panel

³⁹

CALIBRATION KEY Structure

--- CALIBRATION KEY Structure

Voltage CALIBRATION Operation Current CALIBRATION Operation

4-6. Calibration Using REMOTE INTERFACE

⁴³

Connecting Measuring Instrument

Remote Calibration Command Sequence Voltage CALIBRATION Operation

Current CALIBRATION Operation

---

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5. FACTORY

⁴⁵

5-1. Characteristics

45

5-2. FACTORY KEY Structure

⁴⁵

5-3. USER-MEM CLEAR

⁴⁶

USER-MEM CLEAR Operation

5-4. LAST STATE

⁴⁷

LAS S A O i

---

--- --- --- ---

LAST STATE Operation

5-5. AUTO CURSOR MV

48

AUTO CURSOR MV Operation

5-6. AUTO KEY LOCK

⁴⁹

AUTO KEY LOCK Operation

5-7. OVP USE

⁵⁰

OVP USE Operation

--- ---

---

5-8. OCP USE

⁵¹

OCP USE Operation

5-9. ADC SAMPLING

⁵²

ADC SAMPLING Operation

5-10. CAL-RESTORE

53

CAL-RESTORE Operation

5-11. CAL-BACKUP

⁵³

--- --- --- ---

5 11. CAL BACKUP

⁵³

CAL-BACKUP Operation

5-12. CAL-DEFAULT

⁵⁴

CAL-DEFAULT Operation

5-13. LOAD DEFAULT

⁵⁴

LOAD DEFAULT Operation

--- ---

6. SCPI Commands

⁵⁵

--- 55

6-2. Commands

⁵⁵

Output Setting Commands Measurement Commands Calibration Commands Factory Commands

---

6-1. Commands Syntax

---

Factory Commands System Commands

6-3. Apply Commands

⁵⁷

6-4. Output Voltage/Current Setting & Operation Commands

⁵⁷

6-5. Measure Commands

62

6-6. Calibration Commands

⁶²

6-7. Factory Commands

⁶³

--- ---

--- --- ---

y

6-8. System Commands

---⁶⁵

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7. Error Messages

⁶⁸

7-1. Operational Error

68

7-2. Hardware Error

⁶⁸

--- 68

7-4. Calibration Error

⁷⁰

7-5. Fixed Memory Check Error

⁷⁰

---

7-3. Remote Calibration Error

--- ---

7-6. Interface Commands Error

71

8. Specifications

⁷²

9. Warnings

---⁷³ ---

---

9. Warnings

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1. Product Outline

1-1. Product Characteristics

OPX-93D is 0~9V / 0~3A Dual Output Programmable Direct Current Supply Equipment. It is optimized and designed for mobile testing equipment with 1/2-19inch 3U height. It supports RS-232C and GPIB

Communication follow as SCPI (Standard Commands for Programmable Instruments).

General Functional Characteristics

▌Simple setting using encoder switch.

▌High-accuracy & High-resolution

▌DC-FAN Fail Check Function

▌Output Voltage, Current Shut Off & Recall Function (Output ON/OFF)

▌Front panel's Key Lock Function

▌Alarms in Various Event Occurs

▌Built-in Remote Sensing for Load Voltage(V-Sensing)

▌Built in Remote Sensing for Load Voltage(V Sensing)

▌Over Voltage Protection(O.V.P) / Over Current Protection(O.C.P) Protection Function

▌Under Voltage Limit(U.V.L)/Over Voltage Limit(O.V.L)

▌Under Current Limit(U.C.L)/Over Current Limit(O.C.L)

▌Outstanding Load Regulation & Line Regulation

▌Store & Recall up to 10 Operating Condition(Voltage,Current,OVP,OCP)

▌Store & Recall up to 10 Error Messages

▌1/2-19inch 3U Rack Compact Size Remote Interface Characteristics

▌RS232C, GPIB Interface Support

▌SCPI(Standard Commands for Programmable Instruments) Compatibility

▌High speed setting & measurement

▌Plenty of Commands Equipped

▌Simple Interface Setting using I/O config on the front panel

▌Product Floating Logic Materialization

▌SCPI Programming Grammar Error Check Function Equipped Calibration Characteristic

▌Inner Calibration not needed by Software Calibration adoption

▌Simple Calibration Operating using PC Interface or Exclusive Factory Function Characteristic

▌10 User Memory Reset Function

▌Store & Recall last condition before Power OFF

▌Auto Key Lock & Auto Cursor Move which prevents users mistake

▌OVP & OCP Disable Setting Function

▌High-speed or Accurate value reading using ADC(Analog to Digital Conversion) Sampling Function

▌Calibration Restore Function

▌Calibration Back-Up Function

▌Please Contact ODA if you need more functions.

Self Test Characteristic Self Test Characteristic

▌Front panel Test ▌ADC H/W Error Test

▌Remote interface Test ▌Memory Data Verification Test

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1-2. Accessories

Accessories

▌One 1.5M Power Cord

▌One Spare Fuse

▌One User's Manual

1-3. Product Inspection

Please check below features after opening box. If a problem occurs please ask service center or main office about A/S service. Please pack the product fully with box package.

Also, check our homepage Q&A for further information.

Equipment Check

▌Check if KEY, Encoder Switch, Power Switch are damaged.

▌Check Scratches on the Name Plate.

▌Check if REAR Terminal is damaged.

▌Check Scratches on the product body.

▌Check Scratches and LCD Dot shatter

▌Check Scratches and LCD Dot shatter.

Biographic Check

▌Check Alarms when the Power is ON.

If there is an alarm, there might be error in the self-test.

Press ERR key to check the Error Code.

Reference "7 Error Messages" for further details Reference 7.Error Messages for further details.

Reference 1-6 check after power on for Self-test

▌Company Name & Model Name will be displayed when the power is ON.

▌If "**OUTPUT OFF**" is displayed without any problem, read reference Specifications to continue.

Service Center : 82-32-623-5454 Home page : www.odacore.com

Note

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1-4. Working Condition

This product is appropriate in below circumstances.

▌Ambient Temperature : 0 ∼ 40℃

▌Humidity : less than 80%

▌Altitude : less than 2000m

▌

▌Place where has no vibration

▌Place not be effected by magnetic field

1-5. Check Before Input Power

Check Power Cord

▌Supplied power cord is 3-Wire Ground Type, If you like to use separate power cord, please use Ground type. Also, Connect power line Earth and products GND before using the goods.

Check AC Input Power Switch

▌The product is designed single phase with AC100V / AC220V ±10% / 50 60H We set

▌The product is designed single phase with AC100V / AC220V ±10% / 50~60Hz. We set AC200V when the good is released. The switch is located at the bottom of the product.

220V

B O T T O M

AC INPUT SELECTION

▌Fuse is equipped to protect the product when the product is overloaded.

When the power is OFF even the switch is ON, please check Rear Panel Inlet Fuse Holder.

If the Fuse is damaged, please change with same capacity fuse.

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1-6. Check After Input Power

When Power supply is ON, it will start setting & self-testing. Also, it maintains previous Remote Interface setting, output voltage is 0V, output current is maximum.

(When the product is released, last state setting is disabled).

OVP & OCP will be set on maximum value of the product.

Check Sequence

▌"ODA T h l i " ill b di l d

▌"ODA Technologies" will be displayed.

▌"OPX-93D Ver x.x" will be displayed.

▌Front OVP,OCP,RMT,ERR Lamp will be lighted clockwise and lighted out CV Lamp light-off/CC Lamp light-on/CV Lamp light-on/CC Lamp light-on & off.

▌While above features are displaying, a reset will be done by fixed memory.

▌Also, Self-Test will proceed, and if there is an error, error code will be saved.

You could press ERR Key to see the error code You could press ERR Key to see the error code.

Read Reference "7. Error Messages" for further details.

Earliest Setting Value(When Last state Mode is Disabled)

▌OVP : OVP Maximum value Set-up, OVP ON

▌OCP : OCP Maximum value Set-up, OCP ON

▌UVL : 0V

▌OVL : Maximum Limit Set-up

▌OVL Maximum Limit Set up

▌UCL : 0A

▌OCL : Maximum Limit Set-up

▌Output Voltage : 0V

▌Output Current : Maximum Limit Set-up

▌Remote Interface : Maintain previous Set-up

▌Condition after self-testing : "**OUTPUT OFF**"

▌Cursor Location : Default Voltage Select V lt : 0 1V S l

Voltage : 0.1V Scale Current : 0.1A Scale

▌KEY LOCK : OFF

GPIB in Remote Interface will be selected when the good is released. Channel 1 address is 5, Channel 2 address is 6.

Last State is disabled when the good is released, to recall Voltage/Current & other Set-up, Note1

Note2

use factory mode to Set-up.

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1-7. Product Installation

Cooling

▌The product is guaranteed in 0℃ ~ 40℃ condition, so please consider the place to use.

In area 40℃ ~ 55℃, reduce output current 0~70%.

When it is installed in Rack, please consider about ventilation.

Bench Operation

▌There should be spare spaces on products side front rear for ventilation

▌There should be spare spaces on products side, front, rear for ventilation.

Bottom has no ventilating opening, can be used directly.

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2. Front Panel, Rear Panel Structure & Function

1 13

2 14 Right Displace Cursor & Menu change Key

3 15 Variable Encoder

4 16 Positive Output

5 17 Negative Output

6 18 Remote Voltage Sensing Positive Input

7 19 Remote Voltage Sensing Negative Input

8 Error Lamp 20

Channel1(P1) 16Char Type LCD Display Channel2(P2) 16Char Type LCD Display CV Mode Lamp

CC Mode Lamp

Left Displace Cursor & Menu change Key

OVP Set-up Condition Lamp OCP Set-up Condition Lamp Remote Interface Lamp

Earth Connection Terminal

8 20

9 21

10 11 12

Error Lamp

Output Voltage/Current Limit Display Key I/O LOCAL, Error, Calibrate Key

Protect, Lock, Factory Key

Output Voltage/Current ON/OFF Key

Earth Connection Terminal Main Power ON/OFF Switch

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1. Channel 1(P1) 16Char Type LCD Display

Menu which shows Channel 1 Voltage/Current value, Option, Various Menu.

2. Channel 2(P2) 16Char Type LCD Display

Menu which shows Channel 2 Voltage/Current value, Option, Various Menu.

From the sight of front side, Channel 1 and Channel 2 are bisymmetry, independent control method. They are explained below.

independent control method. They are explained below.

3. CV Mode Lamp

In CV(Constant Voltage) Mode, the lamp is lighted.

4. CC Mode Lamp

In CC(Constant Current) Mode, the lamp is lighted.

5 OVP S t C diti L 5. OVP Set-up Condition Lamp

When in Over Voltage Protection is Set-up, the lamp will be lighted.

They can be changed in Factory Mode.

6. OCP Set-up Condition Lamp

When in Over Current Protection is Set-up, the lamp will be lighted.

They can be changed in Factory Mode.

7. Remote Interface Lamp

When remote interface is recalled, Lamp will be lighted, Front panel cannot be used in this condition.

8. Error Lamp

When any Error occurs, Lamp will be lighted, when all the error message is checked, Lamp will be light-out.

9. Output Voltage/Current ON/OFF Key

Print or Shut off Voltage/Current from Output Terminal.

10. Voltage/Current Select & Limit Display Key

Able to move the cursor to Voltage or Current, and check the present output Voltage/Current.

11. I/O LOCAL, Error, Calibrate Key/ , , y

Set-up RS232C or GPIB, Check Error Message & Calibrate output Voltage/Current.

12. Protect, Lock, Factory Key

Set-up protections such as OVP/OCP/UVL/OVL/UCL/OCL and etc.

Press lock key more than 1second to lock the keys on Front Panel.

Also, Factory Mode has various options to set-up.

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13. Left Displace Cursor & Menu change Key

Change Voltage/Current Range, Cursor will move Left.

In Menu Mode, it can be used to change Menu left side.

14. Right Displace Cursor & Menu change Key

Change Voltage/Current Range, Cursor will move Right.

In Menu Mode, it can be used to change Menu right side.

15. Variable Encoder

If the encoder rotate left(CCW), value will fall. If it rotate right(CW), value will rise in numerical menu mode or Voltage/Current.

16. Positive Output

Output Terminal Voltage/Current Positive (+).

17. Negative Output

Output Terminal Voltage/Current Negative (-).

18. Remote Voltage Sensing Positive Input

Input Positive to load to supply accurate voltage.

19. Remote Voltage Sensing Negative Input 19. Remote Voltage Sensing Negative Input

Input Negative to load to supply accurate Voltage.

20. Earth Connection Terminal

When the load need Earth, connect this terminal.

21. Main Power ON/Off Switch

Switch which provide or shut off AC input Power.

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2-1. Front panel Voltage Current Setting

Use Below Method to Set-up limit value.

1. Check whether "**OUTPUT OFF**" is displayed after Power ON.p y

2. In front sight of view, left side is channel 1(P1), right side is channel 2 (P2).

3. Press V/I LMT Key to move on to Limit Mode.

4. Left cursor Key increases the digit, right cursor Key decreases the digit.

5. To raise Limit value, rotate encoder clock-wise.

To reduce it, rotate encoder anti clock-wise.

6. Check Set-up value is successfully changed on LCD Display.

7. Press OUTPUT ON/OFF Key to output set-up Voltage/Current.

Note1

If it is in Remote Interface condition, Front panel Key & encoder switch will not work.

To change channel in to Local, press I/O LOCAL Key to disable Remote Interface.

Note1

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2-2. Rear Panel Structure

1 5

2 6

3 7

4

1. Model Name & Serial Number

Sticker which involves product model name & Electronic capacity, fuse capacity, serial number.

Ventilating Opening Model Name & Serial Number

AC Input Inlet Channel 2(P2) RS232C Port

Channel 1(P1) GPIB Port

Channel 2(P2) GPIB Port Channel 1(P1) RS232C Port

Sticker which involves product model name & Electronic capacity, fuse capacity, serial number.

2. Channel 1(P1) RS232C Port

RS232C Interface Port which controls Channel 1(P1).

3. Channel 1(P1) GPIB Port

GPIB Interface Port which controls Channel 1(P1).

4 Ch l 2(P2) RS232C P t 4. Channel 2(P2) RS232C Port

RS232C Interface Port which controls Channel 2(P2).

5. Channel 2(P2) GPIB Port

GPIB Interface Port which controls Channel 2(P2).

6. AC Input Inlet

AC input has 110/220V 50-60Hz, it is selected 220V when the product is released.

AC input has 110/220V 50 60Hz, it is selected 220V when the product is released.

7. Ventilating Opening

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3. Operating Front panel

When there is no event for 10 seconds or by pressing I/O LOCAL, PROTECT Key, The menu will move in to Local Mode Automatically.

Menu select & check key provides simple and convenience to users.

Overview

1. Constant Voltage (CV)

Explanation of Constant Voltage output Mode.

2. Constant Current (CC)

Explanation of Constant Current output Mode.

3. Remote Voltage Sensing

Explanation of Load voltage sensing.

4. Programming Over Voltage Protection(OVP) Explanation of programming over voltage protection.

5. Programming Over Current Protection(OCP) Explanation of programming over current protection.

6 Programming Under Voltage Limit(UVL) 6. Programming Under Voltage Limit(UVL) Explanation of programming under voltage limit.

7. Programming Over Voltage Limit(OVL) Explanation of programming over voltage limit.

8. Programming Under Current Limit(UCL) Explanation of programming under current limit.

9. Programming Over Current Limit(OCL) 9. Programming Over Current Limit(OCL) Explanation of programming over current limit.

10. KEY LOCK

Explanation of Front panel's lock and disable.

11. I/O LOCAL

Explanation of Remote Interface Set-up/Local mode & Error Message Display.

12. V/I & LMT DISPLAY

Explanation of Voltage/Current Set-up value or actual output value.

13. Output ON/OFF

Explanation of output voltage shut-off & permission output condition.

14. Error Message Display

Explanation of checking Power Supply's error message.

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3-1. Constant Voltage Operation(CV)

Constant Voltage output Mode, Follow the sequence below.(When Last State Mode is disabled.)

▌Power Switch ON

Check "**OUTPUT OFF**" Mode when the power is ON.

▌Connect load to output terminal.

▌Press V/I LMT Key to set-up the Limit value.

▌To set-up voltage, use cursor key. Move cursor key to voltage range, and use encoder switch to set-up the voltage.

In mode Protection(OVP/UVL/OVL), voltage cannot rise more than Protection level, if user tries to raise more than Protection Limit, "PROTECTION LIMIT"

Message will be displayed, and set-up in Protection Level value.

▌Setting higher current value than load current value will prevent damage, use current set-up below.

▌To set-up the current, press V/I LMT Key, and move cursor to Current.

▌Use Cursor key and Encoder switch to set-up higher current value than the load.

In Protection(OCP/UCL/OCL) mode, current cannot rise more than Protection level if user tries to raise more than Protection Limit "PROTECTION LIMIT"

level, if user tries to raise more than Protection Limit, PROTECTION LIMIT Message will be displayed, and set-up in Protection Level Value.

▌Press OUTPUT ON/OFF Key when all the set-up is done.

LCD Display displays readback Voltage/Current.

▌Check CV Lamp is ON, CC Lamp is OFF.

If the lamp is ON and OFF opposite, check if there is enough current supplying to the load Raise current Limit Value

supplying to the load. Raise current Limit Value.

When V/I LMT Key is pressed, it displays the limit value. By pressing once more, users are able to change voltage/current cursor.

Note1

What is ReadBack Display? Displaying actual output voltage and current.

Note2

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3-2. Constant Current Operation(CC)

Constant Current output Mode, Follow the sequence below.(When Last State Mode is disabled.)

▌Power Switch ON

Check "**OUTPUT OFF**" Mode when the power is ON.

▌Connect load to output terminal

▌Connect load to output terminal.

▌Press V/I LMT Key to set-up the Limit value.

▌To set-up voltage, use cursor key. Move cursor key to voltage range, and use encoder switch to set-up the voltage.

In mode Protection(OVP/UVL/OVL), voltage cannot rise more than Protection level, if user tries to raise more than Protection Limit, "PROTECTION LIMIT"

M ill b di l d d t i P t ti L l l

▌To set-up current, use cursor key to change the current value.

In mode Protection(OVP/UVL/OVL), current cannot rise more than Protection level, if user tries to raise more than Protection Limit, "PROTECTION LIMIT"

▌Press OUTPUT ON/OFF Key when all the set-up is done.

LCD Di l y di l y db k V lt /Cu t LCD Display displays readback Voltage/Current.

▌Check CC Lamp is ON, CV Lamp is OFF.

If the lamp is ON and OFF opposite, check if there is enough voltage supplying to load. Raise current Limit Value.

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3-3. Remote Voltage Sensing

Regulation occurs when the load is connected with power supply output terminal, in connection lead line. Therefore, to provide accurate power, Remote Voltage Sensing can be used. Please follow the steps below to use V-Sensing.

CV R l ti CV Regulation

Read Reference about Specification's Voltage Load Regulation Characteristics Below : Because of load current fluctuation, between +S point and + output terminal V-Sensing should add 5mV each to its characteristics. Because Sensing Lead line is a part of power supply's feedback. Sensing lead line should be less than 0.5Ω to maintain output value accurately.

Output Rating

Check below features for Specification of Voltage & Current Output rate.

Dropped voltage + actual output voltage will be power supply's total output value.

Therefore, if users try to print maximum voltage, we cannot guarantee V-sensing performance. Power supply will be in Unregulated condition.

Al if h l d l d li i th 1V l b U l t d

Also, if each load lead line is more than 1V, power supply can become Unregulated regardless of maximum output voltage.

What is UnRegulated condition? Condition which cannot operate CV or CC mode, because power supply source is above the maximum limit.

Note

Output Noise

In output of power supply, sensing lead line noises can give critical damage to voltage Load Regulation. Therefore, follow the sequence below.

Refer Diagram <3-1>.

▌twist sensing lead lines to reduce noises from outside.

▌

▌connect straight to load lead line and sensing lead line.

▌In circumstances which noise is disclosed, sensing lead line should be covered.

▌Connect noise cover device to power supply in shortest location to GND.

▌Connect load lead & sensing lead from shortest location from power supply.

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Stability

Using V-sensing with long load line and high-capacity combinated could cause problems because it operates as a part of voltage feedback root as filter.

This might cause problems in stability with output because of power supplies fast response time. This unstable root will be feedback and make another problems to power supply.

To reduce these problems, please follow steps below :

▌Make load lead line & sensing lead line as short as you can.

▌twist load lead line.

▌Connect sensing lead line safely to the load.

Power supply's programming feedback is a part of root, might cause problems by using V-Sensing.

▌DO NOT connect load lead line to sensing TERMINAL.

Connecting Remote Voltage Sensing

Be careful with + - terminal when you connect load and sensing terminal for V-Sensing If you connect load to sensing terminal, it might become unregulated condition.

The actual value of voltage & current can be different from displaying voltage & current.

It might damage the good.

Note

Remove Metal Short-Bar on output and sensing terminal to connect V-sensing.

If you stop using V-sensing, put the Metal short-bar back in to output and sensing terminal.

< Diagram 3-1 >

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3-4. Programming Over Voltage Protection(OVP)

Function that protects by shutting off output voltage when the voltage is higher than OVP Level.

Read OVP Level Set-up Below. Disable OVP function in Factory Mode.

OVP Level Value below can be different.

▌Power Switch ON

Check "**OUTPUT OFF**" Mode is displayed after input Power ON.

▌Press PROTECT Key to Set-up the Level

LCD Display Description PROTECT> 1.OVP

▌Press PROTECT Key once more in "1.OVP" condition.

LCD Display Description OVP SET> 9 900V LCD Display Description OVP SET> 9.900V

▌Use cursor key to locate the value.

▌Use Encoder switch to set-up the level.

OVP Level cannot be set less than outputting voltage.

▌Press PROTECT Key when it is done.

LCD Display Description Changed Returns after displaying above Message.

To cancel ▌To cancel, please press I/O LOCAL Key or wait for 10 seconds..

Wait 10 Sec LCD Display Description Cancel…

Note

Read reference about earliest OVP Set-up "1-6. Check after power ON" "Earliest Setting Value"

When actual output voltage is higher than OVP Level value "OVP TRIPPED" Message When actual output voltage is higher than OVP Level value, OVP TRIPPED Message will be displayed. It shut-off output voltage and current to prevent the sources.

To output voltage and current again, remove the load and follow the sequence below to Clear the Trip. The Trip might occurred by :

First It can happen when OVP Level value is accidentally tripped.

Therefore, raise Level value to solve the problem.

Second There can be a trip when users used load which cause counter electromotive force such as Coil & Motors. Diagram below shows how to prevent it.

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Third There can be a trip when load source. When Battery charge & discharge occurs, its level can be higher than setting value.

Below diagram shows how to prevent it with inserting diode with right current capacity.

< Diagram 3-2 >

Fourth If it is difficult to manage Tripping, There is a way to Turn OVP Function OFF in force.

To turn it OFF, go to Factory Mode, and "Disable" "5.OVP USE".

▌When OVP Trip occurs, "OVP TRIPPED" message will be displayed.

▌To Clear OVP Trip, firstly raise OVP Level.

To set-up Level, press PROTECT Key.

▌Press PROTECT Key once more in "PROTECT> 1.OVP " condition.

LCD Display Description OVP SET> 8.500V

▌Use cursor key to change the value.

▌Use Encoder switch to raise Level value.

▌When it is done, press PROTECT Key to save.

LCD Display Description Changed

After message above is displayed go back to before the trip After message above is displayed, go back to before the trip.

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( ) 3-5. Programming Over Current Protection(OCP)

If output current is higher than OCP Level, this function shut off the output current to protect load from power supply. It is OCP Level Set-up & ON,OFF set-up below :

OCP Level Value below can be different.

▌Power Switch ON

▌Press PROTECT Key to Set-up the Level

▌Use right cursor key to move on to OCP Menu.

LCD Display Description PROTECT> 2.OCP

▌Press PROTECT Key once more in "PROTECT> 2 OCP" condition

▌Press PROTECT Key once more in PROTECT> 2.OCP condition.

LCD Display Description OCP SET> 3.3000A

▌Use encoder switch to change Level value.

OCP Level cannot be set-up lower than present output current.

▌When it is done, Press PROTECT Key to save.

LCD Display Description Changed It returns when above message is displayed.

To cancel ▌To cancel, press I/O Local Key or wait for 10 seconds.

wait 10sec LCD Display Description Cancel…

Read reference for earliest OCP set-up "1-6. Check after Power ON" "Earliest setting value".

If actual output current is higher than OCP Level 'OCP TRIPPED" will be displayed and all the Note

If actual output current is higher than OCP Level, OCP TRIPPED will be displayed and all the output voltage and currents will be shut-off. To print voltage and current again,

remove load and follow below sequence to clear the trip.

Trip can be occurred

First It can happen when OCP Level value is accidentally tripped.

Therefore, raise Level value to solve the problem.

Second There can be a trip when users used load which cause counter electromotiveSecond There can be a trip when users used load which cause counter electromotive force such as Coil & Motors. Diagram 3-2 above shows how to prevent it.

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Third There can be a trip when load source. When Battery charge & discharge occurs, its level can be higher than setting value.

Above diagram shows how to prevent it with inserting diode with right current capacity.

Fourth If it is difficult to manage Tripping, There is a way to Turn OCP Function OFF in force.

To turn it OFF, go to Factory Mode, and "Disable" "6.OCP USE".

▌When OCP trip occurs, "OCP TRIPPED" message will be displayed.

▌To clear OCP trip, firstly raise OCP Level value.

Press PROTECT Key to set-up Level value.

▌Use right cursor key to move on to OCP Menu.

LCD Display Description PROTECT> 2.OCP

▌Press PROTECT Key once more in "PROTECT> 2.OCP" condition.

LCD Display Description OCP SET> 3.3000A

▌Use encoder switch to change Level value higher

▌Use encoder switch to change Level value higher.

▌Press PROTECT Key to save.

Return to previous menu when above message is displayed.

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( ) 3-6. Programming Under Voltage Limit(UVL)

Users are able to change 0V to maximum voltage. However if user input voltage in UVL, from this point users are able to change UVL voltage to maximum voltage.

UVL Level Value below can be different.

▌Power Switch ON

▌Before setting-up UVL, voltage limit should be higher than UVL setting value.

Therefore, set-up voltage first.

▌Use cursor key to move on to voltage range, and use encoder switch to change the voltage value.

Voltage cannot rise more than the Protection Level in Protection (OVP/UVL will be displayed and voltage will be set-up protection level value

/OVL) If it tries to rise more than protection level, "PROTECTION LIMIT"

will be displayed and voltage will be set up protection level value.

▌Press PROTECT Key to set-up UVL Level.

▌Use right cursor key to move on to UVL Menu.

LCD Display Description PROTECT> 3.UVL

▌Press PROTECT Key once more in "PROTECT> 3.UVL" condition.

LCD Display Description UVL SET> 0.000V

▌Rotate encoder switch to change the level value.

UVL Level cannot rise more than present setting value which prevents p g p users mistake.

Return to previous page when above message is displayed.

To cancel ▌To cancel, press I/O LOCAL Key or wait for 10 seconds.

Wait 10 sec LCD Display Description Cancel…

Read reference "1-6. Check after Power ON" "Earliest Setting Value"

Note

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( ) 3-7. Programming Over Voltage Limit(OVL)

Users are able to change 0V to maximum voltage. However if user input voltage in OVL, from this point users are able to change 0V to UVL voltage.

OVL Level Value below can be different.

▌Power Switch ON

▌Before setting-up OVL, voltage limit should be lower than UVL setting value.

Therefore, set-up voltage first.

▌Press PROTECT Key to set-up OVL Level.

▌Use right cursor key to move on to OVL Menu.

LCD Display Description PROTECT> 4.OVL

▌Press PROTECT Key once more "Protect> 4.OVL" condition.

LCD Display Description OVL SET> 9.450V

▌Rotate encoder switch to change Level value.

OVL Level cannot fall more than present setting value which preventsp g p users mistake.

Return to previous page after displaying above message.

Wait 10 Sec LCD Display Description Cancel…

Note

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( ) 3-8. Programming Under Current Limit(UCL)

Users are able to change 0A to maximum current using encoder switch. However, when users input UCL to the current, from this point, UCL current to maximum current are able to change.

UCL Level Value below can be different.

▌Power Switch ON

Check whether "**OUTPUT OFF**" is displayed after input Power.

▌Before setting UCL, current limit should be higher than UCL setting value.

Therefore, start with current.

▌Press PROTECT Key to set-up UCL Level.

▌Use right cursor key to move on to UCL Menu.

LCD Display Description PROTECT> 5.UCL

▌Press PROTECT Key once more in "PROTECT> 5.UCL" condition.

LCD Display Description UCL SET> 0.0000A

▌Rotate encoder switch to change level value.

To prevent user's mistake, UCL Level cannot be higher than p , g current setting voltage.

▌Press PROTECT Key to save.

Return to previous page after displaying above message.

Note

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( ) 3-9. Programming Over Current Limit(OCL)

It is possible to variety 0A to maximum current using encoder switch. However if user input from this point, it can only variety 0A to OCL current set-up value.

OCL Level Value below can be different.

▌Power Switch ON

Check whether "**OUTPUT OFF**" is displayed after Power ON.

▌Before set-up OCL, current limit should be lower than OCL set-up value.

Therefore, set-up current first.

▌To set-up current, use right cursor key to change current range and rotate encoder switch to set-up value.

Current cannot rise more than the Protection Level in Protection (OVP/UVL will be displayed and current will be set-up protection level value

will be displayed and current will be set up protection level value.

▌Press PROTECT Key to set-up OCL Level.

▌Use right cursor key to move on to OCL Menu.

LCD Display Description PROTECT> 6.OCL

▌Press PROTECT Key once more in "PROTECT> 6.OCL" condition.

LCD Display Description OCL SET> 3.1500A

▌Use encoder switch to change Level value.

OCL Level cannot be set-up lower than present setting value.p p g

▌Press PROTECT Key when it is done.

Return to previous page when message above is displayed.

Read reference earliest UCL set-up "1-6. Check after Input Power" "Earliest Setting Value"

Note

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3-10. KEY LOCK

Function which lock and unlock Front Panel keys.

It prevents changing set-up value or encoder variable by users mistake.

▌Power Switch ON

Check whether "**OUTPUT OFF**" Mode is displayed after Power ON.

▌Press KEY LOCK Key long enough to prevent other keys in Front panel.

"**KEY LOCK**" will be displayed, and keys will be locked.

▌To allow keys in Front panel, press KEY LOCK Key.

"**KEY UnLOCK**" will be displayed and keys will be unlocked **KEY UnLOCK** will be displayed, and keys will be unlocked.

If user enable Auto Key Lock in Factory Mode, Front panel will be locked automatically after 1 minute.

Note1

In Remote Interface condition, All keys in front panel will be locked regardless of Key Lock function.

Note2

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3-11. IO/Local

This is Key to use Remote Interface, setting RS-232C, GPIB.

To use Remote Interface, a setting must be done first.

When the product is released, it is selected in GPIB Protocol,

Channel 1(P) Address Number 5, Channel 2 (P2) Address is Number 6.

Communication setting can be set-up only in Front Panel.

▌Description set in IO/Local will be saved fixed memory, they will not be changed even the power is OFF.

▌During Remote InterfaceRemote, RMT Lamp will be lighted and control of power supply will be Remote device first.

▌To change the control to the product, please end Remote Interface and Press I/O LOCAL KEY. RMT Lamp will light-out and users will be able to control by front panel key.

When it is not working even RMT lamp is off, there may be possibility that it is in KEY LOCK system. Please Unlock the KEY LOCK System!

GPIB Set-Up

Users are able to control 15 products including PC, and communication speed is fast maximize production which could make best-solution in industries.

Follow the sequence below for GPIB Set-up.

▌Power Switch ON

Check whether "**OUTPUT OFF**" is displayed after Power ON.

▌Press I/O LOCAL Key to Set-up GPIB.

LCD Display Description I/O> 1.GPIB ADR can be different by condition.

▌RS232C or GPIB will be Displayed by previous condition.

Use cursor key to select "1.GPIB ADR", and press I/O LOCAL Key.

LCD Display Description >ADDRESS NO. 5 can be different by condition.

▌GPIB Address is Number 1~30 selectable, PC Interface and GPIB Address should be the same.

Rotate encoder for setting and saving Address. To save, press I/O Local Key.g g , p / y LCD Display Description Saved

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GPIB Installation Set-Up

GPIB Connecter is standard 24-pin, and located at Rear Panel.

< Diagram 3-3 >

▌GPIB PC I t f I t ll ti

▌GPIB PC Interface Installation

Cable line should be shield line, and should not be longer than 2M.

Also, distance between the equipments should not longer than 20M total.

DO NOT connect more than 15 products including PC.

IEEE488.2 Connector Block should be connected less than 3.

<A> <B>

OR

< Diagram 3-4 > < Diagram 3-5 >

Note

If connection cable is linger than 4M, please read IEEE488.2 warnings before using.

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RS232C Set-up

Follow sequence below to set-up RS232C.

▌Power Switch ON

Check whether "**OUTPUT OFF**" Mode is displayed after Power On.

▌Press I/O LOCAL Key to set-up RS232C.

LCD Display Description I/O> 2.RS232C can be different by condition.

▌In accordance of previous condition, RS-232C or GPIB will be displayed.

If it is not "2.RS232C", press cursor key to display "I/O> 2.RS232C".

LCD Display Description I/O> 2.RS232C

▌To set-up Baud Rate, press I/O LOCAL Key.

LCD Display Description >BR 1: 9600 bps can be different by condition.

▌Baud rate are 9600, 19200, 38400, 57600bps, they should be the same with Remote Interface Baud rate.

For example, to select 38400bps, press right cursor key twice.

LCD Display Description >BR 3: 38400 bps

▌Press I/O LOCAL Key to save.

LCD Display Description Saved

Communication Interface is RS-232C, Baud rate is 38400bps.

Note

What is bps? It stands for bit per second. The more bps, more fast-speed.

RS232C Installation Set-Up

▌RS232C is Fixed like below : Data Bit : 8

Stop Bit : 1 Note

Stop Bit : 1 Parity Bit : None

▌RS232C Data Frame Type

Stop Bit 8 Data Bits

Start Bit

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▌To connect product and Remote device, Female type of standard Cross cable required.

It is explanation about Female type standard cross table wire diagram.

Read reference"1-2. Accessories & Product Option Option" to select wire distances.

< Diagram 3-6 >

▌It is convenient when user use adopt cable separately while providing DB25Pin.

Read reference "1-2. Accessories & Product Option" about wire distances.

< Diagram 3-7 >

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3-12. V/I & LMT DISPLAY

Limit Display function allows users to check set-up voltage and current. Also, user could select locations of cursor for voltage and current.

LMT DISPLAY Function

Check Voltage/Current set-up value.

▌P S it h ON

▌Power Switch ON

▌Press V/I LMT Key to see voltage, current limit.

▌"**OUTPUT OFF**" will be disappeared, and show voltage/current value.

LCD Display Description 0.000V 3.1500A

▌Use cursor key and encoder to set-up voltage and current.

Stand for ▌If there is no change for 4 seconds, return to previous page.

4 seconds LCD Display Description ** OUTPUT OFF **

V/I Function V/I Function

Move cursor to voltage or current.

▌Power Switch ON

▌To use cursor key to change location, press V/I LMT Key to move on to Limit Display condition

Limit Display condition.

LCD Display Description 0.000V 3.1500A Check Cursor Location

▌It will return to previous page when there is no change in 4 seconds.

▌At first, cursor will be located in voltage. Press V/I LMT Key to change the location to current.

▌To move cursor to voltage again, press V/I LMT Key.

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3-13. Output ON/OFF

Function that supplies or shut-off sources from output terminal.

Therefore, user could shut-off not removing the load.

Follow the sequence below :

▌Power Switch ON

▌It is shut-off setting. To allow print source, press OUTPUT ON/OFF Key.

▌To shut-off sources, press OUTPUT ON/OFF once more.

3-14. Error Message Display

If an error occurs about calibration, self-testing mode, SCPI program error, the messages will be saved in fixed memory, up to 10 messages.

Read reference "7. Error Messages" for further information about error message.

▌Error memory are stack structured, and recent message will be accessed first.

▌They will be saved up to 10, from 11th message, the earliest messages will be deleted.

▌When user check message by pressing ERR Key, the messages will be deleted.

▌ERR Lamp will be lighted if there is an error.

ERROR Check

▌Power Switch ON

Ch k h th " OUTPUT OFF " i di l d ft i t P Check whether "**OUTPUT OFF**" is displayed after input Power.

▌To check ERROR, press ERR key for several seconds.

If there is no error, display will be same as below, and automatically return to previous page.

LCD Display Description NO ERROR ERR Lamp will light-out.

If there is an error, display will be like as below.(Error Code) LCD Display Description ERROR NO, -200

LCD Display Description O O, 00

▌To check next ERROR, press ERROR Key.

If there is an error, error code will be displayed.

LCD Display Description ERROR NO, -10

▌To check next ERROR, press ERROR Key.

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4. CALIBRATION

DO NOT use Calibration Option except manager or allowed calibrate institute.

Calibration shall be done by periods. > Close examination : In every 180Days.

> Normal examination : In every 365Days.

Warning

> Normal examination In every 365Days.

Product decrepitude and circumstances can cause average error to output value.

Therefore, this option helps to maintain accurate output.

4-1 Characteristics 4 1. Characteristics

▌Calibration without opening the product case.

▌Calibration using Front panel Key.

▌Calibration using PC-based Remote Interface

▌Saving in fixed memory.

▌Support Backup & Restore Calibration Data

▌ pp p

▌Simple operation using 1:1 method of calibrating instrument Meter value.

4-2. Preparing Accurate Calibration

▌Please use measuring instrument which can measure more than Power supply spec.

▌Operate warming-up for test-measuring instrument more than 1hour in 20℃ ~ 30℃

▌Operate warming up for test measuring instrument more than 1hour in 20℃ 30℃

▌Humidity should be less than 80%.

▌Connect power supply output terminal and measuring instrument to not be shorted.

▌Power supply GND and measuring instrument Earth terminal should be connected with AC input power GND.

▌Please shut-off power of instrument which causes magnetic field and

D i th t t d d f lib ti

Devices that are not needed for calibration.

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4-3. Performance of Measuring Instrument for Accurate Calibration

Please use instrument below for power supply spec.

Voltage Range: 20 Vdc

Recommend Digital Voltmeter Resolution: 0.1 mV

Accuracy: 0.01% Agilent 34401A Voltage Calibration

Instrument Required Performance Used in areas :

Electronic Load

Voltage Range: 20 Vdc Current Range: 10 Adc Open and Short Switches

Transient On/Off

Resolution: 10 uA Accuracy: 0.01%

Current monitoring

ODA LP600 Current Calibration Power Supply Protection

0.01Ω , 0.01% While Current Calibration

Voltage Monitoring Current Calibration Current

monitoring

4-4. Measuring Technique

It is technical description below :

Ripple & noise Measuring 100 MHz with

20MHz bandwidth

Tektronix TDS3014 Oscilloscope

Equipment Connection

▌Connect power supply output terminal as diagram below.

▌Remove or Switch OFF electronic load while Calibration.

▌It is acceptable to use general load resistor rather than electronic load.

< Diagram 4-1 >

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Electronic Load

▌Electronic Load are needed for power supply current calibration.

Please use electronic load which can vary resistor.

▌Load should have self short function with ON/OFF function.

▌When paneling current calibration, power supply (+) output terminal and

Electric Load (+) terminal should be connected, and electronic load (-) terminal should be connected to current monitoring shunt lead, before connecting power supply (-) be connected to current monitoring shunt lead, before connecting power supply ( ) output terminal.

▌It should be adequate with using PC remote interface.

Current-Monitoring Resistor(shunt)

▌Use current monitoring resistor because general current measuring instrument is not adequate to high-current capacity.

▌Select TCR less than 10ppm.

▌Use 0.01% high accuracy standard resistor.

DVM(Digital Volt Meter)

▌It will be used for Voltage Calibration & Current monitoring sensing voltage measure.

▌Use more performance than Resolution: 0.1 mV , Accuracy: 0.01%.

▌It should be adequate with using PC remote interface for calibration.

Programming Programming

This product supports calibration with PC Interface based.

Used interface to connect power supply, DVM, Ammeter, Electronic load. When it is calibrated, error will not be caused, which allows to calibrate data with accuracy.

PC Interface diagram below :

< Diagram 4-2 >

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Measuring Position

To obtain accurate result in measuring response time, peak to peak Voltage,

Load Regulation, please resistor below diagram 4-3. when load resistor is connect with B, measuring instrument must be connected to A(Binding post neck).

< Diagram 4-3 >

Front Panel Terminal Connections(Side view)

4-5. Calibration Using Front Panel

Explanation about sequence of manual calibration using Front panel CALIBRATE Key.

CALIBRATION KEY Structure

CAL 1 VOLTAGE LOW

POWER CAL

MENU

1. VOLTAGE LOW

4. CURRENT HIGH 2. VOLTAGE HIGH 3. CURRENT LOW

CALIBRATE POWER

ON

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Voltage CALIBRATION Operation

▌Connect measuring instrument before calibration.

>Connect power supply (+) output terminal to DVM input terminal (+), power supply (-) output terminal to DVM input terminal (-).

▌Power ON while holding CAL Key.

Holding the key

▌Power Switch ON

▌When self-testing mode is done, it is ok to stop pressing CAL Key when

"1 CAL-VOLT LOW" is displayed Release 1.CAL VOLT LOW is displayed.

▌Stop pressing CAL Key when "1.CAL-VOLT LOW" is displayed.

LCD Display Description V-LOW 0.014V Voltage value can be different.

▌Wait for voltage shown on DVM Meter to be settled.

Release

Wait for 5 minutes

▌Use cursor key and encoder switch to input voltage value to DVM Meter.

For example, if it is 15.19mV, input as below.

LCD Display Description V-LOW 0.015V

▌Press CAL Key to save the value.

▌ y

LCD Display Description ADC DATA 026CHReadback value will be displayed in HEX for 500ms LCD Display Description 1.CAL-VOLT LOW Return to previous CAL page.

▌Use cursor key to select "2.CAL-VOLT HIGH" and press CAL Key.

LCD Display Description V-HIGH 9.251V Voltage can be different.

Wait for 5 mins

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▌Use encoder switch to input voltage value shown in DVM Meter to power supply.

For example, if it is 9.2973V, input as below.

LCD Display Description V-HIGH 9.297V

▌When it is done, press CAL Key to save.

LCD Display Description ADC DATA F100HReadback value will be displayed in HEX for 500ms LCD Display Description 2.CAL-VOLT HIGH Return to previous CAL page.

▌Voltage Calibration is done, will be applied from next power supply operation.

Current CALIBRATION Operation

▌Connect measuring instrument before Calibration.

>Connect Power supply (+) terminal to electronic load input terminal (+), and connect power supply (-) to input terminal (-) current monitoring resistor, and opposite side lead to power supply (-) output terminal.

>Connect DVM input terminal (+) to Electronic load Current Monitoring resistor, input terminal (-) to opposite side of Current Monitoring resistor.

▌P P S it h ON hil i CAL K

▌Press Power Switch ON while pressing CAL Key.

▌Power Switch ON

▌When self-testing mode is done, it is ok to release CAL Key when "1.CAL-VOLT LOW" is displayed.

Holding Key

Release

▌Use cursor key to select "3.CAL-CURR LOW" and press CAL Key.

LCD Display Description A-LOW 0.0092A Current can be different.

Wait for 5 mins

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▌If it is stabilized, calculate current value.

If used resist is 0.01Ω and measured voltage value is 0.0123mV, the current value will be 0.00123A.

▌Use cursor key and encoder switch to input measured current to power supply.

LCD Display Description A LOW 0 0012A LCD Display Description A-LOW 0.0012A

LCD Display Description ADC DATA 026CHReadback value will be displayed in HEX for 500ms LCD Display Description 3.CAL-CURR LOW Return to previous CAL page.

▌Use cursor key to select "4.CAL-CURR HIGH" and press CAL Key.

LCD Display Description A-HIGH 3.2778A Current can be different.

Wait for 5 minutes

▌If it is stabilized, calculate current value.

If used resist is 0.01Ω and measured voltage value is 32.791mV, current value will be 3.2791A.

▌Use cursor key and encoder switch to input measured current value.

A HIGH 3 2 91A LCD Display Description A-HIGH 3.2791A

LCD Display Description ADC DATA F500HReadback value will be displayed in HEX for 500ms LCD Display Description 4.CAL-CURR HIGH Return to previous CAL page.

▌Current Calibration is done and it will be applied from the next operation of power supply.

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4-6. Calibration Using REMOTE INTERFACE

Explanation about calibration using Remote Interface.

Other commands cannot be used while Remote Calibration.

Connecting Measuring Instrument

▌Before calibration, connect like diagram 4-2.

▌Set up Interface in each instrument

▌Set-up Interface in each instrument.

▌Activate warming-up to all required instruments including power supply.

Remote Calibration Command Sequence

▌Read reference "6-6. Calibration Command" for SCPI Commands.

▌Please proceed with below sequence, otherwise there might be error occurs which stops Remote Calibration.

▌If an error occurs Remote Calibration should be done from the first

▌If an error occurs, Remote Calibration should be done from the first.

Voltage CALIBRATION Operation

▌Switch OFF the Electronic Load.

▌Send Voltage Minimum Calibration command to power supply.

Sending Command CAL:VOLT MIN Sending Command

▌After 5 minutes, measure DVM Voltage.

▌Send measured voltage value to power supply voltage value.

For example, if measured value is 0.1234, send as below.

Sending Command CAL:VOLT 0.1234 It is OK when digits are Over.

CAL:VOLT MIN

▌Send Voltage Maximum Calibration command to power supply.

Sending Command

▌After 5 minutes, measure DVM Voltage.

▌Send measured voltage value to power supply voltage value.

For example, if measure value is 9.123, send as below.

CAL:VOLT MAX

Sending Command CAL:VOLT 9.123 It is OK when digits are Over.

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Current CALIBRATION Operation

▌Send Switch ON command to electronic load, and set-up current mode.

▌Send current Minimum Calibration command to power supply.

Sending Command

▌El t i L d h ld b CC M d d t th l

CAL:CURR MIN

▌Electronic Load should be CC Mode, and set-up more than power supply maximum current. If it is not more than maximum current of power supply, it can be switch to CV Mode which can bring wrong measured value, therefore, please set-up more than the maximum current.

▌Wait for 5 minutes and measure DVM current.

▌Send power supply's current value from prepared current measuring program.

For example, If measured value is 0.1234, send as below.

Sending Command It is OK when digits are Over.

▌Send Voltage Maximum Calibration command to power supply.

Sending Command

▌Wait for 5 minutes, and measure DVM Voltage connected to current monitoring resistor.

CAL:CURR MAX CAL:CURR 0.1234

▌Send measured value to power supply voltage value.

Sending Command CAL:CURR 3.1234 It is OK when digits are Over.

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5. FACTORY

This product provides Calibration back-up & restore and other functions.

5-1. Characteristics

▌『User Memory』 Initialize 10 Data.

▌It can restore Power supply condition value before power OFF.

▌When the product is not used for a long time it can change voltage/current into minimum value

▌When the product is not used for a long time, it can change voltage/current into minimum value.

▌When the product is not used for a long time, it can Auto Lock Front panel keys.

▌It can change OVP, OCP Function to be disabled.

▌It can set-up voltage/current average value.

▌It can back-up and restore Calibration, and setting when the product is released.

5-2. FACTORY KEY Structure

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5 3 USER MEM CLEAR 5-3. USER-MEM CLEAR

▌『User Memory』Command which initialize 1~10 at once.

▌When a initialization is activated, previous data cannot be restored.

▌Initialized Description

>Voltage 0V

>Current Limit Maximum Value

>OVP-Level OVP Setting Maximum Value

>OVP Level OVP Setting Maximum Value

>OCP-Level OCP Setting Maximum Value

>UVL-Level 0V

>OVL-Level Limit Maximum Value

>UCL-Level 0A

>OCL-Level Limit Maximum Value

>Output Mode OFF

USER-MEM CLEAR Operating

▌Switch ON Power while holding FACTORY Key.

▌Power Switch ON Holding

▌When "1. USER-MEM CLEAR" Message is displayed, release FACTORY Key.

▌Press FACTORY Key once more to initialize 『User Memory』.

LCD Display Description Done Release

(50)

5 4 LAST STATE 5-4. LAST STATE

▌When power is ON, this function restore setting before it was OFF.

▌Function

> DISABLE Booting power supply with standard value.

We recommend Disable mode for safety.

> SAFETY It restores setting before the product is OFF However it maintains basic

> SAFETY It restores setting before the product is OFF. However, it maintains basic output ON/OFF Therefore, it is safe because it will be booted Output OFF.

> FULLY Restore previous value before it was OFF.

It restores Output setting also, can be dangerous because when it is booted, it is starting with output ON.

LAST STATE Operation

▌Power Switch ON while pressing FACTORY Key.

▌Power Switch ON Holding

▌When "1. USER-MEM CLEAR" is displayed, release FACTORY Key.

▌Use cursor key to move on to "2. LAST STATE" Menu.

▌To set-up, press FACTORY Key once more.

LCD Display Description DISABLE Release

LCD Display Description DISABLE

▌Use cursor key to move to "SAFETY" and check Safe Mode.

LCD Display Description SAFETY

▌To apply, press FACTORY Key once more.

LCD Display Description Done

User Manual OPX-93D

Programmable DC Power Supply

User Manual

www.odacore.com

OPX-93D

Manual Part NO. 018OPX-93D-2.0

Legal Notices

Warranty Certification

Assistance

Waste Electrical and Electronic Equipment

Manual Editions

Safety Notices

Safety Symbol

CONTENTS

1. Product Outline

1-1. Product Characteristics

1-2. Accessories

1-3. Product Inspection

1-4. Working Condition

1-5. Check Before Input Power

1-6. Check After Input Power

1-7. Product Installation

2. Front Panel, Rear Panel Structure & Function

2-1. Front Panel Voltage & Current Setting

2-2. Rear Panel Structure

3. Operating Front Panel

Overview

3-1. Constant Voltage Operation(CV)

3-2. Constant Current Operation(CC)

3-3. Remote Voltage Sensing

( )

3-4. Programming Over Voltage Protection(OVP)

3-5. Programming Over Current Protection(OCP)

3-6. Programming Under Voltage Limit(UVL)

3-7. Programming Over Voltage Limit(OVL)

3-8. Programming Under Current Limit(UCL)

3-9. Programming Over Current Limit(OCL)

3 10 KEY LOCK

3-12. V/I & LMT DISPLAY

3-10. KEY LOCK 3-11. IO/Local

3-13. Output ON/OFF

3-14. Error Message Display

4. CALIBRATION

4-1. Characteristics

4-2. Preparing Accurate Calibration

4-3. Performance of Measuring Instrument for Accurate Calibration

4-4. Measuring Technique

4-5. Calibration Using Front Panel

4-6. Calibration Using REMOTE INTERFACE

5. FACTORY

5-1. Characteristics

5-2. FACTORY KEY Structure

5-3. USER-MEM CLEAR

5-4. LAST STATE

5-5. AUTO CURSOR MV

5-6. AUTO KEY LOCK

5-7. OVP USE

5-8. OCP USE

5-9. ADC SAMPLING

5-10. CAL-RESTORE

5-11. CAL-BACKUP

5 11. CAL BACKUP

5-12. CAL-DEFAULT

5-13. LOAD DEFAULT

6. SCPI Commands

6-2. Commands

6-1. Commands Syntax

6-3. Apply Commands

6-4. Output Voltage/Current Setting & Operation Commands

6-5. Measure Commands

6-6. Calibration Commands

6-7. Factory Commands

y

6-8. System Commands

7. Error Messages

7-1. Operational Error

7-2. Hardware Error

7-4. Calibration Error

7-5. Fixed Memory Check Error

7-3. Remote Calibration Error