ODA LF Series User manual
www.odacore.com
Programmable DC Electronic Load
LF Series
User Manual
Manual Part NO. 018LF-1.0.1
Legal Notices
© ODA Technologies Co., Ltd. 2008
No part of this document may be photocopied, reproduced, or translated to another language without
the prior agreement and written consent of ODA Technologies Co., Ltd. as governed by Republic of
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
+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
Manual Part Number: 018LF-1.0.1 Edition 13, July, 2018 Printed in ROK
Reprints of this manual containing minor corrections and updates may have the same printing date.
Revised editions are identified by a new printing date.
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.
the power cable and any external circuits before
removing the instrument cover.
Do Not Remove the Instrument Cover
Only qualified, service-trained personnel who
are aware of the hazards involved should
remove instrument covers. Always disconnect
is not customer accessible.
understood and met.
Do Not Operate in an Explosive Atmosphere
Do not operate the instrument in the presence
of flammable gases or fumes.
external markings described under
attention to an operating procedure, practice,
"Safety Symbols"
or the like that, if not correctly performed or
adhered to, could result in personal injury or
Fuses
death. Do not proceed beyond a WARNING
The instrument contains an internal fuse, which
notice until the indicated conditions are fully
hazard that could result in personal injury.
CAUTION notice until the indicated conditions
Before Applying Power
are fully understood and met.
Verify that all safety precautions are taken.
Make all connections to the unit before
WARNING
applying power. Note the instrument's
A WARNING notice denotes a hazard. It calls
wire firmly connected to an electrical ground
A CAUTION notice denotes a hazard. It calls
(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
earth terminal will cause a potential shock
of important data. Do not proceed beyond a
To minimize shock hazard, the instrument
unintended operation until they can be repaired by
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
CAUTION
instructions.
features are maintained.
Ground the Instrument
In Case of Damage
This product is a Safety Class 1 instrument
Instruments that appear damaged or defective
(provided with a protective earth terminal).
should be made inoperative and secured against
General
Do Not Modify the Instrument
Do not use this product in any manner not
Do not install substitute parts or perform any
specified by the manufacturer. The protective
unauthorized modification to the product. Return
features of this product may be impaired if it is
the product to an ODA Sales and Service Office
used in a manner not specified in the operation
for service and repair to ensure that safety
Safety Symbol
Caution, hot surface
Caution, refer to accompanying
documents
On supply
Off supply
Standby supply. Unit is not
completely disconnected
from ac mains when switch
is off
In position of a bi-stable push
switch
Out position of a bi-stable
push switch
Caution, risk of electric shock
Earth (ground) terminal
Protective earth ground terminal.
Frame or chassis terminal
Terminal is at earth potential.
Neutral conductor on
permanently installed
equipment
Line conductor on
permanently installed equipment.
Direct current
Alternating current
Both direct and alternating current
Three phase alternating current
1-1. Feature ----------------------------------- 1
General Feature
Remote Interface
Calibration
Factory Function
1-2. Accessories and Options ----------------------------------- 2
Accessories
Options
----------------------------------- 3
Mechanical Check
Electrical Check
1-4. Operating Conditions ----------------------------------- 3
1-5. Check Before Power On ----------------------------------- 4
Power Cable
AC Input Power
1-6. Check After Power On ----------------------------------- 4
Displayed proceduer on LCD
Default Setting Values
1-7. Installation ----------------------------------- 5
Cooling
Bench Operation
Rack Mounting
2-1. Front Panel ----------------------------------- 6
2-2. Rear Panel ----------------------------------- 10
1. General Information
1-3. Product Inspection
2. Configuration of Front Panel and Rear Panel
CONTENTS
Overview ----------------------------------- 12
3-1.CC MODE ----------------------------------- 14
MODE SET
Current Setting
Change LCD Display
3-2.CV MODE ----------------------------------- 17
MODE SET
Voltage Setting
Change LCD Display
3-3.CR MODE ----------------------------------- 20
MODE SET
Resistance Setting
Change LCD Display
3-4.CP MODE ----------------------------------- 23
MODE SET
Watt Setting
Change LCD Display
3-5.ON/OFF MODE ----------------------------------- 26
MODE SET
Setting Value (ON Current, ON TIME, OFF TIME, ON/OFF REPEAT)
Change LCD Display
3-6.FUSE MODE ----------------------------------- 29
MODE SET
Setting Value (FUSE Current, FUSE TIME)
Change LCD Display
3-7.BAT MODE(BATTERY) ----------------------------------- 32
MODE SET
Setting Value (BAT MODE, END VOLT, END CAP)
Change LCD Display
3-8.CYC MODE(Cycling) ----------------------------------- 35
Setting Value (FINISH STEP, REPEAT, MODE, STEP VALUE, STEP DELAY)
CYC RUN/STOP
Change LCD Display
3. Operating Front-Panel
3-9.DYN MODE(Dynamic)
------------------------------
40
Setting Value (MODE, A VALUE, B VALUE, DYN CYC TIME, A DUTY)
DYN RUN/STOP
Change LCD Display
3-10.CC,CV RANG
------------------------------
46
3-11.IO/LOCAL
------------------------------
47
RS-232C
RS-485
TCP/IP
3-12.ESC/ERR/PROT
------------------------------
54
3-13.SAVE/RECALL, KEY LOCK
------------------------------
56
3-14.REMOTE Voltage
------------------------------
58
3-15.SHORT
------------------------------
59
4. CALIBRATION
4-1. Features
------------------------------
60
4-2. Preparation for Calibration
------------------------------
60
4-3. Equipment required for Calibration
------------------------------
61
4-4. Measurement Techniques
------------------------------
61
Instruments Connection Drawing
Power Supply
Current-Monitoring Resistor(shunt)
DVM(Digital Volt Meter)
4-5. Calibration Using Front Panel
------------------------------
63
Current Calibration
Voltage Calibration
4-6. Calibration Using Remote Interface
------------------------------
69
Current Calibration
Voltage Calibration
5. FACTORY
5-1. Feature ----------------------------- 72
5-2. Structure of FACTORY KEY ----------------------------- 72
5-3. USER-MEM CLEAR ----------------------------- 73
5-4. CAL_RESTORE ----------------------------- 74
5-5. CAL_BACKUP ----------------------------- 75
5-6. CAL_DEFAULT ----------------------------- 76
5-7. LOAD_DEFAULT ----------------------------- 77
5-8. DELIMITER_CHAR ----------------------------- 78
5-9. COM_RESPONSE ----------------------------- 79
5-10. AOUT_KEY_LOCK
----------------------------- 80
5-11. ADC_SAMPLING ----------------------------- 81
6-1. Commands Syntax ----------------------------- 82
6-2. Commands ----------------------------- 82
7-1. Operating Error ----------------------------- 100
7-2. Hardware Error ----------------------------- 100
7-3. Remote Calibration Error ----------------------------- 100
6. SCPI Command
7. Error Messages
7-4. Calibration Error ----------------------------- 102
7-5. Nonvolatile Memory Check Error ----------------------------- 103
7-6. Interface Commands Error ----------------------------- 104
-----------------------------
8. Cautions
106
LF Series is a high performance, high efficiency programmable electronic load
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
▌Front panel Key Lock function
▌Alram beep when events occur
▌Excellent precise and high resolution
▌Built-in Remote Sensing for Load Voltage(V-Sensing)
▌O.V.P / O.P.P / O.T.P / O.C.P
▌Excellent load and line regulation
▌Memory save and recall function(up to 10 operation states)
▌Save and confirm up to 10 error messages
▌2U * 19inch half Rack Compact Size(300W, 600W)
Remote Interface
▌RS232C, RS485, TCP/IP(Option)
▌SCPI(Standard Commands for Programmable Instruments) adopted
▌High speed setting & measument
▌A large number of commands are programmed in product.
▌Easy interface setting using I/O config on front panel
▌Technical realization of products insulation & Floating Logic.
▌Built-in checking SCPI programming grammar error system
Calibration
▌Adopting Software Calibration (No need to internal calibrate)
▌Easy calibration operating by itself or PC Interface
Factory Function
▌Initializing 10 user memories
▌Last state memory store and recall function (output on/off, voltage & current value and etc.).
▌Auto Key Lock to prevent operator error
▌Calibration Restoration
▌Calibration Backup
which has RS-232C, RS-485, TCP/IP(Option) interface that is equivalent
- 1 -
1-1. Feature
1. General Information
Table of contents
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