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ODA LF Series User Manual

Programmable dc electronic load
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Programmable DC Electronic Load
LF Series
User Manual
Manual Part NO. 018LF-1.0.1

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Summary of Contents for ODA LF Series

  • Page 1 Programmable DC Electronic Load LF Series User Manual Manual Part NO. 018LF-1.0.1...
  • Page 2 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.
  • Page 3 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. General...
  • Page 4 Safety Symbol Direct current Alternating current Both direct and alternating current Three phase alternating current Earth (ground) terminal Protective earth ground terminal. Frame or chassis terminal Terminal is at earth potential. Neutral conductor on Line conductor on permanently installed permanently installed equipment. equipment On supply Off supply...

  • Page 5: Table Of Contents

    CONTENTS 1. General Information 1-1. Feature ----------------------------------- General Feature Remote Interface Calibration Factory Function 1-2. Accessories and Options ----------------------------------- Accessories Options 1-3. Product Inspection ----------------------------------- Mechanical Check Electrical Check 1-4. Operating Conditions ----------------------------------- 1-5. Check Before Power On ----------------------------------- Power Cable AC Input Power 1-6.
  • Page 6 3. Operating Front-Panel Overview ----------------------------------- 3-1.CC MODE ----------------------------------- MODE SET Current Setting Change LCD Display 3-2.CV MODE ----------------------------------- MODE SET Voltage Setting Change LCD Display 3-3.CR MODE ----------------------------------- MODE SET Resistance Setting Change LCD Display 3-4.CP MODE ----------------------------------- MODE SET Watt Setting Change LCD Display 3-5.ON/OFF MODE...
  • Page 7 3-9.DYN MODE(Dynamic) ------------------------------ Setting Value (MODE, A VALUE, B VALUE, DYN CYC TIME, A DUTY) DYN RUN/STOP Change LCD Display 3-10.CC,CV RANG ------------------------------ 3-11.IO/LOCAL ------------------------------ RS-232C RS-485 TCP/IP 3-12.ESC/ERR/PROT ------------------------------ 3-13.SAVE/RECALL, KEY LOCK ------------------------------ 3-14.REMOTE Voltage ------------------------------ 3-15.SHORT ------------------------------ 4. CALIBRATION 4-1.
  • Page 8 5. FACTORY 5-1. Feature ----------------------------- 5-2. Structure of FACTORY KEY ----------------------------- 5-3. USER-MEM CLEAR ----------------------------- 5-4. CAL_RESTORE ----------------------------- 5-5. CAL_BACKUP ----------------------------- 5-6. CAL_DEFAULT ----------------------------- 5-7. LOAD_DEFAULT ----------------------------- 5-8. DELIMITER_CHAR ----------------------------- 5-9. COM_RESPONSE ----------------------------- 5-10. AOUT_KEY_LOCK ----------------------------- 5-11. ADC_SAMPLING ----------------------------- 6. SCPI Command 6-1.
  • Page 9 7-4. Calibration Error ----------------------------- 7-5. Nonvolatile Memory Check Error ----------------------------- 7-6. Interface Commands Error ----------------------------- 8. Cautions -----------------------------...

  • Page 10: General Information

    1. General Information 1-1. Feature LF Series is a high performance, high efficiency programmable electronic load which has RS-232C, RS-485, TCP/IP(Option) interface that is equivalent to SCPI(Standard Commands for Programmable Instruments) Protocol. General Features ▌Easy-to-use knob control settings ▌Big size 2Line 16Char LCD Display ▌Input ON/OFF...

  • Page 11: Accessories And Options

    1-2. Accessories and Option Accessories ▌1.5M Output cable 1 pc ▌Rack mount ▌User's Manual 1 pc. Options ▌RS232C Cable 1M, 2M, 4M ▌RS485 Cable 2/4/8-Channel 1M, 2M, 4M, 10M ▌AC Input Cable (Special order type) ▌Output Cable (Special order type) - 2 -...

  • Page 12: Product Inspection

    Sales Office immediately. Warranty information is shown in the front of the manual. Keep the original packing materials in case the electric load has to be returned to ODA Technologies in the future. If you return the electric load for service, attach a tag identifying the owner and model number.

  • Page 13: Check Before Power On

    Displayed procedure on LCD ▌All icons on LCD and segments will light up ▌"ODA Technologies" is displayed on line 1 ▌"The model name of LF-Series" is displayed on line 2. ▌During displaying above procedure, the instrument is initialized by stored in non-volatile memory.

  • Page 14: Installation

    1-7. Installation Cooling ▌Load's quality is guaranteed in the circumstances of 0℃ ~ 40℃. If you use this instrument in 40℃ ~ 55℃, please lower the output current to 0~70%. When you use your electronic load on a rack, please be careful air-circulation. You can use Rack Mounting Support as optional product.

  • Page 15: Front Panel

    2. Configuration of Front Panel & Real Panel 2-1. Front Panel HIGH RMT LOCK 5 6 7 SETING & INPUT CC/CV LOCAL RANG DISPLAY MODE ON/OFF ERR/PROT POWER SAVE/ SHORT RECALL SETING SETING ON/OFF RUN/STOP RUN/STOP V_SENSING KEY LOCK CALIBRATION FACTORY <...
  • Page 16 1. 16Char * 2Line type LCD Display Voltage/current and all kinds menu/message are displayed 2. CC/CV LOW RANG LCD ICON lights up when CC/CV MODE RANG is low 3. CC/CV HI RANG LCD ICON lights up when CC/CV MODE RANG is high 4.
  • Page 17 15. Setting Encoder Set all values or change numerical value in functional menu 16. Right Cursor or Menu Change Key Move to the right direction. After entering Menu, this is the move key 17. Left Cursor or Menu Change Key Move to the left direction.
  • Page 18 27. CYCLING SETTING KEY When entering setting menu of CYCLING MODE, this is the setting key. 28. DYNAMIC RUN/STOP, Calibration KEY After booting, this key is used to start and end DYNAMIC Mode During booting, this key is for setting in Calibration menu and functional menu 29.

  • Page 19: Rear Panel

    2-2. Rear Panel Interface 1 2 3 4 5 6 1 2 3 4 < 그림 2-2 > AC Input RS232C Interface Port External Input/Output Terminal Ventilation Slit TCP/IP Interface Port(Option) RS485 Interface Port 1. AC Input Input AC voltage here. 110/220V(changeable) / 50-60Hz is default and change the value is optional.
  • Page 20 3. TCP/IP Interface Port(Option) Interface Port that can control the electronic load using TCP/IP communication. 4. RS485 Interface Port It is a Communication method that can connect multiple devices(power supplier, DMM, Scope, etc.,) in parallel to one external controller. ※ Pin Description 1) +5V (Communication Power Source) 3) D- (Data-) 2) D+ (Data+)

  • Page 21: Overview

    3. Front-Panel Operating Select and confirm key is the same key that you press when enter that menu, so it is easy to operate. Overview 3-1.CC MODE Description about the operation of constant current mode. 3-2. CV MODE Description about the operation of constant voltage mode. 3-3.
  • Page 22 3-12. ESC/ERR/PROT Description about cancel, checking errors and disabling Protection 3-13. SAVE/RECALL, KEY LOCK Description about saving and loading the data from 『User Memory』 and disabling KEY LOCK mode. 3-14. REMOTR Voltage Description about Remote Voltage Sensing 3-15. SHORT Description about SHORT function - 13 -...

  • Page 23: 3-1.Cc Mode

    3-1.CC MODE (Constant Currunt) To set up CC mode, proceed as follow. MODE SET ▌Power ON POWER ▌Move to MODE menu Press MODE Key to enter MODE menu MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set CC MODE by using left/right key When CC MODE is on, "1.
  • Page 24 CC MODE INPUT ON ▌To enable CC MODE ON, press INPUT ON/OFF Key INPUT When INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When CC MODE is ON, how to change LCD display ▌Check if CC MODE is on CC icon and ON icon light up.
  • Page 25 CC MODE INPUT OFF ▌To disable CC MODE, press INPUT ON/OFF KEY. INPUT If INPUT is off, ON icon will light off. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? Note 000. MD.T Unit Hour Minute Second - 16 -...

  • Page 26: 3-2.Cv Mode Mode Set

    3-2. CV MODE To set up CV mode, proceed as follows. MODE SET ▌Power ON POWER ▌Move to MODE menu Press MODE Key to enter MODE menu MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set CV MODE by using left/right key When CV MODE is on, "2.
  • Page 27 CV MODE INPUT ON ▌To able CV MODE, press INPUT ON/OFF KEY. INPUT If INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When CV MODE is ON, how to change LCD display ▌Check if CV MODE is on CV icon and ON icon light on.
  • Page 28 CV MODE INPUT OFF ▌To disable CV MODE, press INPUT ON/OFF KEY. INPUT If INPUT is off, ON icon will light off. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? Note 000. MD.T unit Hour Minute Second - 19 -...

  • Page 29: 3-3.Cr Mode Mode Set

    3-3. CR MODE To set up CR mode, proceed as follows. MODE SET ▌Power ON POWER ▌Move to MODE menu Press MODE Key to enter MODE menu MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set CR MODE by using left/right key When CR MODE is on, "3.
  • Page 30 CR MODE INPUT ON ▌To enable CR MODE ON, press INPUT ON/OFF Key INPUT If INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When CR MODE is ON, how to change LCD display ▌Check if CR MODE is on CR icon and ON icon light on.
  • Page 31 CR MODE INPUT OFF ▌To disable CR MODE, press INPUT ON/OFF KEY. INPUT If INPUT is off, ON icon will light off. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? Note 000. MD.TIME Unit Hour Minute Second - 22 -...

  • Page 32: 3-4.Cp Mode Mode Set

    3-4. CP MODE To set up CP mode, proceed as follows. MODE SET ▌Power ON POWER ▌Move to MODE menu Press MODE Key to enter MODE menu MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set CP MODE by using left/right key When CP MODE is on, "4.
  • Page 33 CP MODE INPUT ON ▌To enable CP MODE ON, press INPUT ON/OFF Key INPUT If INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When CP MODE is ON, how to change LCD display ▌Check if CP MODE is on CP icon is on and ON icon is on.
  • Page 34 CP MODE INPUT OFF ▌To disable CP MODE, press INPUT ON/OFF KEY. INPUT If INPUT is off, ON icon will light off. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? Note 000. MD.TIME Unit Hour Minute Second - 25 -...

  • Page 35: 3-5.On/Off Mode

    3-5. ON/OFF MODE(Constant current ON / OFF mode) To set up ON/OFF mode, proceed as follows. MODE SET ▌Power ON POWER POWER ▌Move to MODE SETTING menu Press MODE Key to enter MODE menu MODE MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set CP MODE by using left/right key When ON/OFF MODE is on, "5.
  • Page 36 ▌Entering OFF.TIME menu Press MODE Key to enter OFF.TIME menu. MODE ">MODE >ON.OFF" is displayed on 1st line of LCD, and "OFF.T" is displayed on 2nd line of LCD. ▌To set OFF_TIME, move cursor using right/left key to the value you want to change. And adjust the encorder switch to change value.
  • Page 37 ON/OFF MODE INPUT ON ▌To enable ON/OFF MODE on, press INPUT ON/OFF KEY. INPUT If INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When ON/OFF MODE is ON, how to change LCD display ▌Check if ON/OFF MODE is on On icon lights up.
  • Page 38 3-6. FUSE MODE(Constant current FUSE mode) To set up FUSE mode, proceed as follows. MODE SET POWER POWER ▌Power ON ▌Move to MODE menu Press MODE key to enter MODE menu MODE MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set FUSE MODE by using left/right key When FUSE MODE is on, "6.

  • Page 39: 3-6.Fuse Mode

    ▌Saving MODE & Exit MODE menu Press MODE key to save MODE and exit MODE menu. MODE After "SAVE…" is displayed on the 2nd line of LCD, present voltage and current shows on the 1st line of LCD "FUSE MODE OFF" will show on the 2nd line of LCD. ≫...
  • Page 40 FUSE MODE INPUT OFF ▌To disable ON/OFF MODE off, press INPUT ON/OFF KEY. INPUT If INPUT is off, ON icon will light off. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? Note When time of FUSE mode is finished, FUSE_MODE_END will be displayed on FUSE VALUE display and FUSE TIME will be stop and current value will be set as 0.

  • Page 41: Mode Set

    3-7. BAT MODE(BATTERY TEST MODE) To set up BATTERY TEST mode, proceed as follows. MODE SET POWER POWER ▌Power ON ▌Move to MODE menu Press MODE key to enter MODE menu MODE MODE When entering MODE menu, ">MODE SET" is displayed on 1st line of LCD ▌MODE setting Set BAT MODE by using left/right key When BAT MODE is on, "7.
  • Page 42 ▌Entering BATTERY END VOLT menu Press MODE Key to enter BATTERY END VOLT menu. MODE ">MODE >BAT" is displayed on 1st line of LCD, and "END.VOLT" is displayed on 2nd line of LCD. ▌To set END VOLT value, move cursor using right/left key to the value you want to change.
  • Page 43 BATTERY MODE INPUT ON ▌To enable ON/OFF MODE on, press INPUT ON/OFF KEY. INPUT If INPUT is on, ON icon will light up. ON/OFF ≫ Related Remote Interface Command INPUT {OFF|ON} INPUT? When BATTERY MODE is ON, how to change LCD display ▌Check if BATTERY MODE is on On icon lights up.

  • Page 44: Mode Set

    3-8.CYC MODE To set up CYCLING mode, proceed as follows. MODE SET POWER ▌Power ON ▌Move to Cycling mode menu Press Cycling setting key. CYCLING When entering setting menu of Cycling mode, SETTING ">CYC SET" is displayed on 1st line of LCD. CYC icon will light up.
  • Page 45 Cycling REPEAT SET ▌When in Cycling mode setting menu, CYC icon is on and On icon is off ▌Setting Cycling Finish Step menu Move to Cycling REPEAT menu by using left/right key When in Finish Step, "2.REPEAT_NUM" is displayed on 2nd line of LCD ※Cycling setting munu order: 1.FINISH_STEP ↔...
  • Page 46 Cycling STEP VALUE SET ▌When in Cycling mode setting menu, CYC icon lights up and On icon lights off ▌Cycling STEP value menu setting Move to Cycling STEP value menu by using left/right key When Cycling menu, "4.VALUE STEP:" is displayed on 2nd line of LCD ※Cycling setting munu order: 1.FINISH_STEP ↔...
  • Page 47 Cycling STEP DELAY SET ▌When in Cycling mode setting menu, CYC icon lights up and On icon lights off ▌Setting Cycling STEP DELAY menu Move to Cycling STEP DELAY value menu by using left/right key When in Cycling menu, "5.CYC_DELAY:" is displayed on 2nd line of LCD ※Cycling setting munu order: 1.FINISH_STEP ↔...
  • Page 48 Cycling Mode RUN ▌When INPUT is OFF ON icon lights off. ▌Cycling Mode RUN Press Cycling RUN/STOP key. RUN/STPO After starting Cycling mode, CYC icon and ON icon light up. ≫ Related Remote Interface Command CYC:INPUT:{ON | OFF} CYC:INPUT? When Cycling is ON, how to change LCD display. ▌Check if Cycling is on CYC icon and On icon are on.

  • Page 49: 3-9.Dyn Mode(Dynamic)

    3-9.DYN MODE To set up Dynamic mode, proceed as follows. MODE SET POWER ▌Power ON ▌Move to Dynamic mode menu Press Dynamic setting key once. Dynamic When entering Dynamic mode setting menu, SETTING ">DYN SET" is displayed on 1st line of LCD. DYN icon will light up.
  • Page 50 DYN A VALUE SET ▌When in Dynamic mode setting menu, CYC icon is on and On icon is off ▌Dynamic A_VALUE menu setting Move to Dynamic A_VALUE menu by using left/right key When in Finish Step menu, "2.A VALUE" is displayed on 2nd line of LCD ※Dynamic setting munu order: 1.MODE ↔...
  • Page 51 DYN B VALUE SET ▌When in Dynamic mode setting menu, DYN icon is on and On icon is off ▌Dynamic B VALUE menu setting Move to Dynamic B VALUE menu by using left/right key When in Dynamic menu, "3.B VALUE:" is displayed on 2nd line of LCD ※Dynamic setting menu order : 1.MODE ↔...
  • Page 52 DYN CYC TIME SET ▌When in Dynamic mode setting menu, DYN icon is on and On icon is off ▌Dynamic CYC_TIME menu setting Move to Dynamic CYC_TIME menu by using left/right key When in Dynamic menu, "4.CYC_TIME:" is displayed on 2nd line of LCD ※Dynamic setting menu order: 1.MODE ↔...
  • Page 53 DYN A DUTY SET ▌When in Dynamic mode setting menu, DYN icon is on and On icon is off ▌Dynamic A DUTY menu setting Move toDynamic A DUTY menu by using left/right key When in Dynamic menu, "5.A_DUTY:" is displayed on 2nd line of LCD ※Dynamic setting menu order: 1.MODE ↔...
  • Page 54 Dynamic Mode RUN ▌INPUT OFF ON icon is off. ▌Dynamic Mode RUN Press Dynamic RUN/STOP KEY. Dynamic RUN/STPO After Dynamic mode starts, DYN icon and ON light up. ≫ Related Remote Interface Command DYN:INPUT:{ON | OFF} DYN:INPUT? When Dynamic is ON, how to change LCD display. ▌Check if Dynamic is on Dynamic icon and On icon are on.

  • Page 55: 3-10.Cc,Cv Rang

    3-10.CC,CV RANG To set the RANG in Constant Current and Constant Voltage, proceed as follows. CC,CV RANG SET ▌Power On ▌When INPUT is OFF POWER ▌Enter CC/CV RANG menu CC/CV Press CC/CV RANG KEY. RANG ▌CC/CV RANG setting Move to CC/CV RANG menu by using left/right key ※CC/CV RANG menu order: 1:CC.H_CV.H ↔...

  • Page 56: 3-11.Io/Local

    3-11. IO/LOCAL This is the setting key to configure your electronic load for RS-232C, RS-485, TCP/IP(option). You have to set your electronic load before remote interface. The default setting is RS-232C protocol and baud rate is 9600bps. communication setting is only able to be set by front panel key. ▌IO/LOCAL setting is stored permanentely until you change it in non-volatile memory, even if you turn off your power supply.
  • Page 57 RS-232C Configuration ▌RS-232C is fixed as following. Data Bit : Stop Bit : None Parity Bit : ▌RS-232C data frame < Figure 3-1 > ▌To connect your electronic load to remote device, you need standard Cross cable. Below figure is a wiring drawing in case both cables are Female type of standard Cross cable. Refer "1-2.
  • Page 58 RS-485 SET You can control up to 255 units connected in parallel, including your remote device. To set up RS-485, proceed as follows. ▌Power ON POWER ▌INPUT is off (ON icon is on) ▌Enter IO/LOCAL menu ▌Press IO/Local Key to set RS-485 IO/LOCAL ▌RS-485 menu setting Move to RS-232C menu by using left/right key...
  • Page 59 RS485 Configuration ▌To connect RS485 line to remote device, you need to use extra harness for wiring. The blow figure is a wire diagram of Remote device(PC) by ODA’s 485 to 232 converter. < Figure 3-5 > ▌RS485 PC Interface Drawing RS485 of LF-Series outputs DC5V/0.2A.

  • Page 60: Tcp/Ip

    TCP/IP SETTING (Option) TCP/IP communication module is optional. You have to request this option when you place order since this module is not external type. This module supports 10/100Mbps and can be controlled with company network PC of course, and also can be controlled from anywhere if you assign static IP to the instrument. *Static IP SET ▌Power ON ▌INPUT is off (ON icon is off)
  • Page 61 ▌TCP/IP SUBNET setting ▌Set SUBNET by using left/right cusrsor and encorder switch. ※ Set the same as PC setting value. ▌Enter TCP/IP GATE WAY setting menu IO/LOCAL ▌Press IO/Local key to enter GATE WAY setting. ▌TCP/IP GATE WAY setting ▌Set GATE WAY by using left/right cusrsor and encorder switch. ※...
  • Page 62 ▌TCP/IP IP setting ▌Set Port by using left/right cusrsor and encorder switch. ※ set the same as PC setting value. ▌TCP/IP IP Assignment ▌Press IO/Local Key to have TCP/IP IP. IO/LOCAL ▌"wait..." is displayed on the LCD ▌"Wait" will be displayed while IP is being assigned. After IP was assigned, assigned IP will be displayed and Menu will be exited.

  • Page 63: 3-12.Esc/Err/Prot

    3-12. ESC/ERR/PROT This chapter is about cancellation, checking errors and clearing protection in the menu. ESC (Cancellation) ▌Cancellation in the menu When entering CYC SETING, DYN SETING, IO/LOCAL, SAVE/RECALL, ERR/PROT CALIBRATION and FACTORY menu, press ESC & ERR/PROT KEY to cancle or exit from menu. ERR (Error) Error Message Display When error is occured, up to 10 errors are stored in the nonvolatile memory.
  • Page 64 Protection LF Series has various protection modes. (OVP, OCP, OPP, OTP) Below are explanation about each pretection mode. OVP means "Over Voltage Protection". If load outputs more voltage than its capacity, protection will be on and "OVER VOLT PORT" will be displayed.

  • Page 65: 3-13.Save/Recall, Key Lock

    3-13.SAVE/RECALL SAVE You can save present status of load in 『User Memory』. 『User Memory』 is divided into 10 and Mode status, Range, Voltage, Current, Resistance and Watt value will be saved in 『User Memory』 Below is the process of saving data in 『User Memory』. SAVE ▌Power On POWER...
  • Page 66 RECALL You can recall the saved status in 『User Memory』 and apply to the load. There are 0 ~ 10 address number and Mode Status, Range, Voltage, Current, Resistance, Power in the memory will be applied to current load. RECALL ▌Power On ▌INPUT is OFF (ON icon is off) POWER...

  • Page 67: 3-14.Remote Voltage

    3-14. Remote Voltage When the power supply is connected from the input terminal of the electronic load, voltage Regulation will occur in load connection lead wire. To use more correct voltage, you can use Remote Voltage Sensing (V-Sensing). Please refer following information when using V-Sensing Connecting Remote Voltage Sensing Set Remote Voltage Sensing mode.

  • Page 68: 3-15.Short

    3-15.SHORT, KEY LOCK Use full current in electronic load like short the power supply. To set SHORT mode, proceed as follows. ▌Power ON POWER ▌MODE Change Move to CC MODE. MODE "I-SET" is displayed on 2nd line and CC icon lights up. ※MODE change order: CC→CV→CR→CP→ON/OFF→FUSE→BAT→CC MODE KEY can be used only when INPUT is OFF.

  • Page 69: Calibration

    4. CALIBRATION Warning Calibration processes are recommended to someone specialized in calibration only. Calibration period > For test : per 180 days > For normal use : per 365 days You may experience some performance errors in a variety of environments, such as aging, temperatures and humidity.

  • Page 70: Equipment Required For Calibration

    Instrument Instrument Resolution: 0.1 mV Digital Voltmeter Agilent 34401A Voltage Calibration Accuracy: 0.01% Voltage Range: 200 Vdc ODA Technologies Power supply Current Range: 60 Adc Power supply for E-load Ex-Series (Based on LF-300A) Current monitoring When current calibration, 0.001Ω , 0.01%...

  • Page 71: Power Supply

    Power Supply ▌Power supply can be used for source for calibration. ▌When you do current calibration, power supply's + terminal should be connected to load's + terminal and load's - terminal should be connected to current monitoring shunt's one lead line. Other side lead line should be connected to power supply's - terminal.

  • Page 72: Calibration Using Front Panel

    4-5. Calibration using front panel The following description is the procedure for calibration using Calibration Key on the front panel. CALIBRATION KEY STRUCTURE DYN RUN/STOP DYN RUN/STOP RUN/STOP POWER ON 1.CC_HI_RNG CC_HI_LOW CALIBRATE CALIBRATE CALIBRATE CC_HI_HI CC_LOW_LOW 2.CC_LOW_RNG CC_LOW_HI 3.CV_HI_RNG CV_HI_LOW CV_HI_HI 4.CV_LOW_RNG...

  • Page 73: Current Calibration

    Current Calibration ▌Before calibration, connect the product to a power supply. > Connect power supply's (+) output terminal to load's (+) input terminal. load (-) input terminal is connected to Current Monitoring resistance. Connect Current monitoring resistance's other side of lead line to power supply's (-) output terminal.
  • Page 74 ▌After setting, press DYNRUN/STOP,Calibration key to save the setting value. DYN RUN/STOP After "HAX DAT: " is displayed, it will be changed to CC_HI_HI_CAL mode. Calibration "CC_HI.HI" will be displayed. Wait at least 3 mins ▌Wait until DVM's voltage becomes stable. ▌After the voltage becomes stable, calculate the current value.
  • Page 75 ▌After setting, press DYNRUN/STOP,Calibration key to save the setting value. DYN RUN/STOP After "HAX DAT: " is displayed, it will be changed to CC_LOW_HI_CAL mode. Calibration "CC_LOW.HI" will be displayed. Wait at least 3 mins ▌Wait until DVM's voltage becomes stable. ▌After the voltage becomes stable, calculate the current value.

  • Page 76: Voltage Calibration

    Voltage Calibration ▌Before calibration, connect the product to a power supply. > Connect (+) output terminal of the power supply and the load to DVM's (+) input terminal. And connect the load's (+) output terminal and the power supply's (-) output terminal to DVM's (-) input terminal. Press and hold ▌While pressing DYN RUN/STOP, Calibration Key, DYN RUN/STOP...
  • Page 77 ▌After setting, press DYNRUN/STOP,Calibration key DYN RUN/STOP to save the setting value. Calibration After "HAX DAT: " is displayed, go back to Calibration menu ▌Move to "4.CV_LOW_RNG" and press DYNRUN/STOP, Calibration Key "CV_LOW.LOW" is displayed. CALIBRATION menu order 1.CC_HI_RNG ↔ 2.CC_LOW_RNG ↔ 3.CV_HI_RNG ↔ 4.CV_LOW_RNG Wait at least 3 mins ▌Wait until DVM's voltage becomes stable.
  • Page 78 4-6. REMOTE INTERFACE Calibration You can do calibration by using Remote Interface. During remote calibration process, load can't proceed other command. Connecting Measurement Device ▌Before calibration, connect measurement device as <Figure 4-2>. ▌Set communication setting in each devices. ▌Warming-up is required for all measuring devices before calibration. Remote Calibration Command process ▌Refer to SCPI Commands in "6-6.
  • Page 79 CC_LOW_RANG CALIBRATE ▌Send 'CC_LOW Calibration' command to the load. "CAL:CURR:L" Command ▌Power supply's current value should be higher than load's max current value and set voltage as 5V. If the power suppliy's current value is lower than load's calibration range, incorrect value can be measured. ▌After several minutes.
  • Page 80 ▌After several minutes, send the measured voltage from DVM to the load's value. For example, if the measured value is 1.35, send command as below. "CAL:VOLT:MIN 1.35" Command MIN value is stored and go to HI CAL. (Communication delay is more than 500mS) ▌After several minutes, send the measured voltage from DVM to the load's value.
  • Page 81 5. FACTORY 5-1. Features ▌Can initialize 10 memories in 『non-volatile memory』. ▌Can use Auto Lock function while you don't use product for a long time. ▌Can back up and restore Calibration data and set to default value. 5-2. FACTORY KEY Strecture DYN SETTING DYN SETTING POWER ON...
  • Page 82 5-3. USER_CLEAR ▌Data 1 ~ 10 address in 『User Memory』 can be initialized at once. ▌Once initialized, the old data can't be recovered. ▌Iniialize 『User Memory』 to factory default. USER_CLEAR Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power on...
  • Page 83 5-4. CAL_RESTORE ▌Restore the data saved for calibration backup. ▌If calibration done without knowledge or by user's mistake, you can retore previous data. CAL_RESTORE Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power on Release ▌Release the key after model name is displayed and entered DYN SETTING...
  • Page 84 5-5. CAL_BACKUP ▌To guarantee precision, calibration should be done by a certificated organization every 6 months and calibration once a year is necessary to use without problem. To avoid the worst case, you can back-up calibration data of certificated organization. ▌Once back-up is done, the previous data can't be recovered.
  • Page 85 5-6. CAL_DEFAULT ▌Set the Calibration value as factory dafault. ▌If calibration done without knowledge or doesn't restore with 『5-4. CAL-RESTORE』, you can restore the factory default. In this case, calibration should be done in a a certificated organization to guarantee precision of output voltage and current. CAL_DEFAULT Press and hold DYN SETTING...
  • Page 86 5-7. LOAD_DEFAULT ▌The changed data from Factory Mode can be returned to the basic setting. LOAD_DEFAULT Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power ON Release ▌Release the key after model name is displayed and entered DYN SETTING "--- FACTORY ---"...
  • Page 87 5-8. DELIMITER_CHAR ▌LF Series support varous delimeter. (LF,CR,CRLF) DELIMITER_CHAR Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power ON Release ▌Release the key after model name is displayed and entered DYN SETTING "--- FACTORY ---" mode.
  • Page 88 5-9. COM_RESPONSE ▌This is the response when LF Series send setting commands. COM_RESPONSE Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power ON Release ▌Release the key after model name is displayed and entered DYN SETTING "--- FACTORY ---"...
  • Page 89 5-10. AUTO_KEY_LOCK ▌Auto Key Lock can be used if a user doesn't use the key for a long time. AUTO_KEY_LOCK Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power ON Release ▌Release the key after model name is displayed and entered DYN SETTING "--- FACTORY ---"...
  • Page 90 5-11. ADC_SAMPLING ▌You can change the voltage, current and feedback speed according to the user's purpose. ADC_SAMPLING Press and hold DYN SETTING ▌Power on while pressing DYN SETTING,FACTORY key. FACTORY POWER ▌Power ON Release ▌Release the key after model name is displayed and entered DYN SETTING "--- FACTORY ---"...
  • Page 91 ▌LF,CR,CRLF are available for Delimiter (Refer to 5-8) ▌You can send up to 30 Byte in one time. ▌RS485 consists of "ODA" + 1byte address(01H ~ FFH) + SCPI Protocol ▌Return doesn't include address same as RS232C in Query of RS485.
  • Page 92 RES {VALUE} RES? WATT {VALUE} WATT? ONOFF:CURR {VALUE} ONOFF:CURR? ONOFF:ON:TIME {VALUE} ONOFF:ON:TIME? ONOFF:OFF:TIME {VALUE} ONOFF:OFF:TIME? ONOFF:REP {VALUE} ONOFF:REP? ONOFF:END? FUSE:CURR {VALUE} FUSE:CURR? FUSE:TIME {VALUE} FUSE:TIME? FUSE:END? FUSE:CUT? BAT:MODE:{CC,CR,CP} BAT:MODE? BAT:CURR {VALUE} BAT:CURR? BAT:RES {VALUE} BAT:RES? BAT:WATT {VALUE} BAT:WATT? BAT:END:VOLT {VALUE} BAT:END:VOLT? BAT:END:CAP {VALUE} BAT:END:CAP?
  • Page 93 Dynamic Commands DYN:INPUT {ON | OFF} DYN:INPUT ON? DYN::MODE {CC | CV} DYN:MODE? DYN:MEM:A {VALUE} DYN:MEM:A? DYN:MEM:B {VALUE} DYN:MEM:B? DYN:FREQ {VALUE} DYN:FREQ? DYN:DUTY {VALUE} DYN:DUTY? Cycling Commands CYC:INPUT { ON | OFF } CYC:INPUT ON? CYC:MODE:{CC | CV } CYC:MODE? CYC:VAL:{STEP_NUM} {VALUE} CYC:VAL:{STEP_NUM}? CYC:DELAY:{STEP_NUM} {VALUE}...
  • Page 94 Calibration Commands CAL:CURR:{H|L} CAL:CURR:MIN {VALUE} CAL:CURR:MAX {VALUE} CAL:VOLT:{H|L} CAL:VOLT:MIN {VALUE} CAL:VOLT:MAX {VALUE} System Commands PROT? PROT:CLE SYST:ERR? *IDN? *RST *RCL {VALUE} *SAV {VALUE} *SN? - 85 -...
  • Page 95 INPUT Setting Commands Command for using basic function of load with PC Remote Interface. INPUT {ON | OFF} Command for controlling INPUT ON / OFF of load. >ON Able Input >OFF Disable Input ex1) input on Able Input ex2) input off Disable Input INPUT ON? Command for checking load's input status.
  • Page 96 CURR? Command for checking CC Mode setting current. Return value "current" ex) curr? Return value "60.0" VOLT {value} Command for setting input value of CV Mode. (Only available on CV Mode) >value Input voltage value. ex) VOLT 10 Set voltage as10V VOLT? Command for checking setting voltage of CV Mode.
  • Page 97 ONOFF:CURR {VALUE} Command for setting ON current value of ON/OFF Mode. (Only available on ON/OFF Mode) Input current value. >value ex) ONOFF:CURR 10 Set current 10A ONOFF:CURR? Command for checking current of ON/OFF Mode. Return value "current" ex) ONOFF:CURR? Return value "10.000" ONOFF:ON:TIME {VALUE} Command for setting On Time of ON/OFF Mode.
  • Page 98 ONOFF:OFF:TIME? Command for checking OFF Time of ON/OFF Mode. Return value "time" ex) ONOFF:ON:TIME? Return value "000:00:01:00" ONOFF:REP {VALUE} Command for setting REPEAT value of ON/OFF Mode. (Only available on ON/OFF Mode) >value Input REPEAT value ex) ONOFF:REP 00100 Set ON/OFF as 100 times ONOFF:REP? Command for checking REPEAT value of ON/OFF Mode.
  • Page 99 FUSE:TIME? Command for checking OFF Time of FUSE Mode. Return value "time" ex) FUSE:TIME?? Return value "000:00:01:00" FUSE:END? Command for checking TIME END of FUSE Mode. Return value "0" Before END (Working) "1" END (Not working) FUSE:CUT? Command for checking Fuse status of FUSE Mode. Return value "0"...
  • Page 100 BAT:RES? Command for checking resistance value of BAT CR Mode. Return value "res" ex) BAT:RES? Return value "10.000" BAT:WATT {VALUE} Command for setting current value of BAT CP Mode. (Only available on BAT CP Mode) >value Input watt value ex) BAT:WATT 10 SET watt value as 10W BAT:WATT? Command for checking resistance value of BAT CR Mode.
  • Page 101 Measurement Commands Command for measuring the Read Back voltage, current and watt. The load can be measured alone without DVM(Digital Volt Meter) or ammeter. MEAS:VOLT? Command for measuring the output voltage of load. Return value "voltage" ex) MEAS:VOLT? return value "11.0000" MEAS:CURR? Command for measuring the output current of load.
  • Page 102 DYN:MODE? Command for checking mode of Dynamic Mode. Return value "0" CC Mode "1" CV Mode DYN:MEM:A {VALUE} Command for setting Ach(LOW) value. >value Input Ach value ex) DYN:MEM:A 10 Set Dynamic as 10A or 10V Depending on selected Dynamic Mode(CC,CV), voltage or current will be set automatically. DYN:MEM:A? Command for checking Ach(LOW) value.
  • Page 103 DYN:DUTY {VALUE} Command for setting duty ratio(Based on Ach) of Dynamic Mode. > VALUE Set duty ratio ex)DYN:DUTY 90 Set duty ratio as 90% DYN:DUTY? Command for checking duty ratio(Based on Ach) of Dynamic Mode. Return value "duty" ex) DYN:DUTY? return value "90"...
  • Page 104 CYC:VAL:{STEP_NUM} {VALUE} Command for setting input value and steps to save information of Cycling Mode. > VALUE Cycling input value ex) CYC:VAL:001 10 Save input value 10 to Step 1 Depending on selected Cycling Mode(CC,CV), voltage or current will be set automatically. CYC:VAL:{STEP_NUM}? Command for checking input value saved in step Return value...
  • Page 105 CYC:SEQ {VALUE} Command for setting last step of Cycling Mode > VALUE ex) CYC:SEQ 10 Set step between 1~10 CYC:SEQ? Command for checking last step of Cycling Mode Return value "final step" ex) CYC:SEQ? return value "10" CYC:FIN? Command for checking if repeat time of Cycling Mode is finished. Return value "0"...
  • Page 106 Calibration Commands Be sure to follow the calibration procedure. Refer to "4-6 Remote Interface Calibration" CAL:CURR:{H | L} Command for entering current calibration > H HIGH RANGE current calibration > L LOW RANGE current calibration CAL:CURR:MIN {VALUE} After entering current High,LOW Range Calibration, set LOW(MIN) current value. >...
  • Page 107 Three versions of the information are sent separated by comma. Return value "ODA Technologies,OPC-3010,1.0-1.0-1.0" First Manufacturer Second Model Third Details of the product (3 version) First System controller Version Second Front panel Version Third SCPI protocol Version ex) *idn? return value "ODA Technologies,LP-Series,1.0-1.0-1.0" - 98 -...
  • Page 108 *SAV {1|2|3|4|5|6|7|8|10} Command for saving value of Range, Voltage, Current, Slew Level, Dynamic A and B, DUTY, FREQ of load in 1~10 nonvolatile 『User Memory』. > 1 ~ 10 Memory save address ex) *sav 2 Save to address # 2 *RCL {1|2|3|4|5|6|7|8|10} Command for applying the data saved in non-vilatile 『User Memory』...
  • Page 109 7. Error Messages You can check errors by pressing error key on front panel. +0,"No error" There is no error. 7-1. Operating Error -10, "Invalid the DAC parameter" If setting value is out of range that can be represented by DAC, represented value will be different with actual setting value.
  • Page 110 -23, "En route to cal the curr" Occurs if you send calibration commands related to voltage during current calibration. -24, "Over volt min parameter" Occurs when over range of Voltage Min value. Refer to "4-5. CALIBRATE ' -25, "Under volt max parameter" Occurs when over lower limit value of Voltage Max.
  • Page 111 -34, "Not allowed command under cal" You can't use any othe commands under Remote Calibration 7-4. Calibration Error If you do calibration, Read back calibration will be proceeded inside the product . After checking the calibration proceeded properly, occurred error will be displayed. -60, "DAC-V high Rang high limit over"...
  • Page 112 -72, "DAC-A low Rang high limit over" Occurs when over high range of Current DAC low Rang. -73, "DAC-A low Rang low limit over" Occurs when over low range of Current DAC low Rang. -74, "ADC-A low Rang high limit over" Occurs when over high range of Current ADC low Rang.
  • Page 113 -88, "Not match volt length and limit" Digit length of voltage does not matched with limit value. -89, "Not match curr length and limit" Digit length of current does not matched with limit value. 7-6. Interface Commands Error Notify the errors about command and description when controll with PC communication. -120, "Suffix too long"...
  • Page 114 -222, "Out of data" Occurs when value is out of setting value range. ex)volt 1000 The value is too much Revised) volt 10 -223, "Incorret error" Occurs when try a new operation without processing the buffer. ex)*idn? After send query command send a new command without acquiring data. volt? b = data Revised)*idn?
  • Page 115 8. Cautions Please refer to followings to use product safely for long time. ▌Don't place product to extremely hot or cold space. ▌Don't use product immediately after bringing it from cold space. Liquefaction can cause damage to operation. In this case, operate instrument after waiting for 20~30 minutes. ▌Do not place liquid containers on top of product.
  • Page 116 ODA TECHNOLOGIES CO.,LTD. 62, Bupyeong-daero 329beon-gil, Bupyeong-gu Incheon city, 403-858, Korea TEL. +82-2-1800-8644 FAX. +82-32-715-5456 www.odacore.com sales2@odacore.com...

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