TEXIO LSG-H SERIES, LSG-350H, LSG-175H, LSG-1050H, LSG-2100SH Instruction Manual

LSG-H SERIES

INSTRUCTION MANUAL
ELECTRONIC LOAD
LSG-H SERIES
LSG-350H
LSG-1050H
LSG-2100SH
B71-0488-01

CONTENTS

USING THE PRODUCT SAFELY ························································ -
1. GETTING STARTED ............................................................... 1
1-1. LSG-H Series Introduction ................................................... 1
1-1-1. Model Line Up ........................................................................................... 1
1-1-2. Main Features ........................................................................................... 2
1-2. Accessories ................................................................ ........ 3
1-2-1. Accessories .............................................................................................. 3
1-2-2. Package Contents .................................................................................... 4
1-3. Appearance ......................................................................... 5
1-3-1. Front Panel ............................................................................................... 5
1-3-2. Rear Panel ................................................................................................ 9
1-3-3. Display .................................................................................................... 12
1-4. First Time Use Instructions ................................................ 13
1-4-1. Rack Mount Kits ...................................................................................... 13
1-4-2. Power Up and Self-Test .......................................................................... 15
1-4-3. Load Default Settings.............................................................................. 15
1-4-4. Setting the Date and Time ...................................................................... 16
1-4-5. Load Wiring ............................................................................................. 17
1-4-6. Load Wire Connections ........................................................................... 20
1-4-7. Using the Front Panel Input Terminals.................................................... 21
1-4-8. Using the Rear Panel Input Terminals .................................................... 22
1-4-9. Using the Terminal Cover (PEL -011) ..................................................... 23
1-4-10. Using the Terminal Cover (PEL -013) ................................................... 25
1-4-11. Using the Terminal Cover ..................................................................... 26
1-4-12. Using the Monitor out Cover ................................................................. 27
1-4-13. Remote Sense ...................................................................................... 28
1-4-14. Firmware Update .................................................................................. 29
1-4-15. Conventions .......................................................................................... 30
1-4-16. Help Menu ............................................................................................ 35
2. OPERATION ........................................................................ 36
2-1. Basic Operation ................................................................ 36
2-1-1. CC Mode ................................................................................................. 36
2-1-2. CR Mode ................................................................................................. 38
2-1-3. CR Units ................................................................................................. 39
2-1-4. CV Mode ................................................................................................. 40
2-1-5. CP Mode ................................................................................................. 41
2-1-6. +CV Mode ............................................................................................... 42
2-1-7. Turning on the Load ................................................................ ................ 43
2-1-8. Shorting the Load ................................................................................... 44
2-1-9. Safety Short ............................................................................................ 45
2-1-10. Short Key Configuration ........................................................................ 45
2-1-11. Short Function Enable/Disable ............................................................. 45
2-1-12. Locking the Front Panel Controls .......................................................... 46
2-2. Basic Configuration ........................................................... 47
2-2-1. Select the Switching Function ................................................................. 47
2-2-2. Select the Display Units for Dynamic Mode Levels ................................. 50
2-2-3. Select the Switching Time Configuration for Dynamic Mode .................. 51
2-2-4. Slew Rate ............................................................................................... 52
2-2-5. CV, +CV Mode Response Speed ........................................................... 53
2-2-6. CC, CR and CP Mode Response Speed ................................................ 54
2-3. Advanced Configuration Settings ....................................... 55
2-3-1. Soft Start Setting ..................................................................................... 55
2-3-2. Von Voltage Settings .............................................................................. 56
2-3-2-1. Von Voltage Level ............................................................................ 56
2-3-2-2. Von Voltage Delay ............................................................................ 56
2-3-2-3. Von Voltage Latch ............................................................................ 57
2-3-3. Timer Functions ...................................................................................... 58
2-3-3-1. Count Time ....................................................................................... 58
2-3-3-2. Cut Off Time ..................................................................................... 58
2-3-4. Auto Load Configuration ......................................................................... 59
2-3-5. Load Off (Mode) and Load Off (Range) .................................................. 59
2-4. Step Resolution Configuration ........................................... 60
2-4-1. Cursor Mode Configuration ..................................................................... 60
2-4-2. Step Mode Configuration ........................................................................ 61
2-5. Protection Settings ............................................................ 63
2-5-1. OCP ........................................................................................................ 63
2-5-2. OPP ........................................................................................................ 64
2-5-3. UVP ........................................................................................................ 65
2-5-4. UVP Ring Time ................................................................ ....................... 66
2-5-5. OVP ........................................................................................................ 67
2-5-6. UnReg ..................................................................................................... 68
2-5-7. Para ........................................................................................................ 68
2-5-8. RVP ........................................................................................................ 69
2-6. System Settings ................................................................ 70
2-6-1. Input control settings ................................ ............................................... 70
2-6-2. Sound Settings ....................................................................................... 70
2-6-2-1. Speaker Settings .............................................................................. 70
2-6-2-2. Alarm Tone Settings ......................................................................... 71
2-6-3. Display Settings ...................................................................................... 71
2-6-4. Language Settings .................................................................................. 71
2-6-5. Input / Output Trigger Settings ................................................................ 72
2-6-5-1. Trigger in Delay ................................................................................ 72
2-6-5-2. Trigger Out Width ............................................................................. 72
2-6-6. Measure Average ................................................................................... 72
2-7. Go-NoGo .......................................................................... 73
2-7-1. Setting the Go-NoGo Limits .................................................................... 73
2-7-2. Running a Go-NoGo Test ....................................................................... 74
2-8. Save / Recall .................................................................... 75
2-8-1. File Structure .......................................................................................... 75
2-8-2. File Types ............................................................................................... 76
2-8-3. Saving Files to Internal Memory ............................................................. 77
2-8-4. Saving Files to USB Memory .................................................................. 78
2-8-5. Recalling Files from Internal Memory...................................................... 79
2-8-6. Recalling Files from USB Memory .......................................................... 80
2-8-7. Recall Memory Safety Setting ................................................................. 82
2-8-8. File Utility ................................................................................................ 83
2-8-9. Preset ..................................................................................................... 84
2-8-9-1. Quick Preset Save ............................................................................ 84
2-8-9-2. Quick Preset Recall .......................................................................... 84
2-8-10. Default Settings .................................................................................... 85
2-8-10-1. Factory Default Settings ................................................................. 85
2-8-10-2. User’s Default Setting ..................................................................... 85
3. Function MENU .................................................................... 86
3-1. Function Menu Overview ................................................... 86
3-1-1. Select a Function ................................ .................................................... 86
3-1-2. Turning on the Load with the Selected Function ..................................... 87
3-1-3. Complete Ring Time ............................................................................... 88
3-1-4. NSEQ Timer ........................................................................................... 89
3-2. Program function ............................................................... 90
3-2-1. Program function Overview ..................................................................... 90
3-2-2. Create a Program ................................................................................... 92
3-2-3. Create a Program Chain ......................................................................... 94
3-2-4. Running the Program function ................................................................ 95
3-3. Sequence function ............................................................ 96
3-3-1. Normal Sequence function Overview ...................................................... 96
3-3-2. Timing Edit Configuration ...................................................................... 100
3-3-3. Data Edit Configuration ......................................................................... 101
3-3-4. Running a Normal Sequence function .................................................. 102
3-3-5. Fast Sequence function Overview ........................................................ 103
3-3-6. Timing Edit Configuration ...................................................................... 107
3-3-7. Data Edit Configuration ......................................................................... 108
3-3-8. Running a Fast Sequence function ....................................................... 110
3-4. OCP Test function ............................................................ 111
3-4-1. OCP Test function setting parameters .................................................. 112
3-4-2. OCP Test function setting ..................................................................... 113
3-4-3. Running a OCP Test function ............................................................... 114
3-4-4. Results of OCP Test function ................................................................ 115
3-5. OPP Test function ............................................................ 117
3-5-1. OPP Test function setting parameters .................................................. 118
3-5-2. OPP Test function setting ..................................................................... 119
3-5-3. Running a OPP Test function ............................................................... 120
3-5-4. Results of OPP Test function ................................................................ 121
3-6. BATT Test function ...........................................................123
3-6-1. BATT Test function setting parameters................................................. 125
3-6-2. BATT Test function setting .................................................................... 126
3-6-3. Running a BATT Test function .............................................................. 127
3-6-4. Results of BATT Test function .............................................................. 127
3-6-5. Save the Data for BATT Test function .................................................. 129
4. EXTERNAL CONTROL ........................................................130
4-1. Analog Control .................................................................130
4-1-1. The ports J1 /J3 Overview .................................................................... 130
4-1-1-1. The frame control ports J1 ............................................................. 130
4-1-1-2. The ports J3 .................................................................................... 131
4-1-2. External Voltage Control - Overview ..................................................... 132
4-1-3. External Voltage Control – Operation ................................................... 133
4-1-4. Adjust offset and full scale with variable resistor ................................... 135
4-1-5. External Resistance Control - Overview ............................................... 136
4-1-6. External Resistance Control – Operation .............................................. 137
4-1-7. Adjust offset and full scale with variable resistor ................................... 139
4-1-8. Turning the Load On using External Control ......................................... 140
4-1-9. Load On/Off Status ............................................................................... 141
4-1-10. External Control of the Range ............................................................. 141
4-1-11. I Range Status ................................................................ .................... 142
4-1-12. External Trigger Signal ....................................................................... 142
4-1-13. External Alarm input............................................................................ 143
4-1-14. Alarm Status ....................................................................................... 143
4-1-15. Short Control ....................................................................................... 144
4-1-16. Monitor Signal Output ......................................................................... 145
4-1-16-1. Trigger Signal Output ................................................................... 145
4-1-16-2. Current Monitor Output ................................................................. 145
4-1-16-3. Voltage Monitor Output ................................................................. 146
4-2. Parallel Operation ............................................................147
4-2-1. Capacity of DC electronic loads ............................................................ 147
4-2-2. Connection ............................................................................................ 148
4-2-3. Configuration ........................................................................................ 149
4-2-4. Turning the Load On ............................................................................. 150
4-2-5. Disable Parallel operation ..................................................................... 151
5. REMOTE CONTROL ...........................................................152
5-1. Interface Configuration .....................................................152
5-1-1. Configure to USB Remote Interface...................................................... 152
5-1-2. Configure GP-IB Interface ..................................................................... 153
5-1-3. Configure RS-232C............................................................................... 154
5-1-4. RS-232C/USB Remote Control Function Check ................................... 155
5-1-5. Using RealTerm to Establish a Remote Connection ............................. 155
5-1-6. GP-IB Function Check .......................................................................... 158
6. FAQ ....................................................................................160
7. APPENDIX ..........................................................................161
7-1. Replacing the Dust Filter ..................................................161
7-2. GP-IB Installation .............................................................162
7-3. LSG-H Series Default Settings .........................................163
7-4. Frame Control Connector Contacts ...................................166
7-5. Operating Mode Description .............................................171
7-5-1. CC Mode ............................................................................................... 171
7-5-2. CR Mode ............................................................................................... 172
7-5-3. CP Mode ............................................................................................... 173
7-5-4. CV Mode ............................................................................................... 174
7-6. Operating Area .................................................................175
7-6-1. LSG-175H ................................................................ ............................. 175
7-6-2. LSG-350H ............................................................................................. 176
7-6-3. LSG-1050H ........................................................................................... 177
7-6-4. LSG-2100H ........................................................................................... 178
7-7. LSG-H Series Specifications .............................................179
7-7-1. Rating (Master) ..................................................................................... 179
7-7-2. Rating (Booster) .................................................................................... 179
7-7-3. CC Mode ............................................................................................... 180
7-7-4. CR Mode ............................................................................................... 181
7-7-5. CV Mode ............................................................................................... 182
7-7-6. CP Mode ............................................................................................... 182
7-7-7. Slew Rate ............................................................................................. 183
7-7-8. Meter..................................................................................................... 184
7-7-9. Dynamic Mode ...................................................................................... 185
7-7-10. Soft Start ............................................................................................. 188
7-7-11. Remote Sensing ................................................................................. 188
7-7-12. Protection Function ............................................................................. 188
7-7-13. Sequence ............................................................................................ 189
7-7-14. Other ................................................................................................... 189
7-7-15. Analog External Control ...................................................................... 190
7-7-16. Front Panel BNC Connector ............................................................... 191
7-7-17. General ............................................................................................... 191
7-8. LSG-H Series Dimensions ................................................192
7-8-1. LSG-175H / LSG-350H ......................................................................... 192
7-8-2. LSG-1050H ........................................................................................... 193
7-8-3. LSG-2100SH ........................................................................................ 193
I
USING THE PRODUCT SAFELY
Preface
To use the product safely, read this instruction manual to the end. Before using this product, understand how to correctly use it. If you read this manual but you do not understand how to use it, ask us or
your local dealer. After you read this manual, save it so that you can read it
anytime as required.
Notes on reading this instruction manual
The contents of this instruction manual include technical terms in part of
their explanation. If you do not understand those terms, do not hesitate to ask us or your local dealer.
Pictorial indication and warning character indication
This instruction manual and product show the warning and caution items required to safely use the product. The following pictorial indication and warning character indication are provided.
<Pictorial indication>
Some part of this product or the instruction manual may show This pictorial indication. In this case, if the product is incorrectly used in that part, a serious danger may be brought about on the user's body or the product. To use the part with this pictorial indication, be sure to refer to this instruction manual.
<Warning character
Indication>
WARNING CAUTION
If you use the product, ignoring this indication, you may get killed or seriously injured. This indication shows that the warning item to avoid the danger is provided.
If you incorrectly use the product, ignoring this indication, you may get slightly injured or the product may be damaged. This indication shows that the caution item to avoid the danger is provided.
II
USING THE PRODUCT SAFELY
WARNING
Do not remove the product's covers and panels
Never remove the product's covers and panels for any purpose. Otherwise, the user's electric shock or a fire may be incurred.
Warning on using the product
The warning items given below are to avoid danger to the user's body and life and avoid the damage and deterioration of the product. Use the product, observing the following warning and caution items.
Warning items on power supply
● Power supply voltage
As the rated power supply voltage of the product, the range from 100 to 240 VAC can be used without being switched.
● Power cord
Important: The attached power cord set can be used for this device only.
● Protection fuse If an input protection fuse is blown, the product does not operate. When the fuse is blown, the user can replace it. However, replace it correctly, observing the warning and caution items that are provided in the section of the
instruction manual where the fuse replacement is explained. If the fuse is
incorrectly replaced, a fire may occur.
Changing the power supply voltage
The rated power supply voltage cannot be changed. Use the product only at the rated power supply voltage indicated on the product. Otherwise, a fire may occur. The product's rated power supply voltage is from 100 to 240 VAC. Use the product in this range. (For use at a voltage higher than 125 VAC, Please confirm the voltage ratings of the power cord.)
Warning item on grounding
The product has the GND terminal on the panel surface to protect the user from electric shock and protect the product. Be sure to ground the product to safely use it.
III
USING THE PRODUCT SAFELY
WARNING
Warning item on installation environment
● Operating temperature
Use the product within the operating temperature indicated in the rating column. If the product is used with the vents of the product blocked or in high ambient temperatures, a fire may occur.
● Operating humidity Use the product within the operating humidity indicated in the rating column. Watch out for condensation by a sharp humidity change such as transfer to a room with a different humidity. Also, do not operate the product with wet hands. Otherwise, an electric shock or fire may occur.
● Use in a gas Use in and around a place where an inflammable or explosive gas or steam is generated or stored may result in an explosion and fire. Do not operate the product in such an environment.
Also, use in and around a place where a corrosive gas is generated or spreading causes a serious damage to the product. Do not use the product in such an environment.
● Do not let foreig n matter in Do not insert metal and flammable materials into the product from its vent and spill water on it. Otherwise, an electric shock and fire may occur.
Warning item on abnormality while in use
If smoke or fire is generated from the product while in use, stop using the product, turn off the switch, and remove the power cord plug from the outlet. After confirming that no other devices catch fire, call the company or each sales office.
Front Panel
Please do not lift up the product, while touching the front grille.
IV
USING THE PRODUCT SAFELY
CAUTION
Input/output terminal
Maximum input to the input terminals is specified to prevent the product from being damaged. Do not supply input, exceeding the specifications that are indicated in the "Rating" or "Caution on use" column in the
instruction manual of the product. Otherwise, a product failure is caused.
Also, do not supply power to the output terminals from the outside. Otherwise, a product failure is caused.
When the product is left unused for a long time
Be sure to remove the power plug from the outlet.
(Calibration)
Although the performance and specifications of the product are checked under strict quality control during shipment from the factory, they may aging rate because of aging rate in its parts. It is recommended to periodically calibrate the product so that it is used with its performance and specifications stable. For consultation about the product calibration, call the dealer or the company or each sales office where you bought the product.
(Daily maintenance)
When you clean off the dirt of the product covers, panels, and knobs, avoid solvents such as thinner and benzene. Otherwise, paint may peel off or the resin surface may be affected. To wipe off the covers, panels, and knobs, use a soft cloth with neutral detergent in it. During cleaning, be careful that water, detergents, and other foreign matters do not get into the product. If a liquid or metal gets into the product, an electric shock and fire are caused. During cleaning, remove the power cord plug from the outlet.
Use the product correctly and safely, observing the above warning and caution items. Because the instruction manual indicates caution items even in individual items, observe those caution items to correctly use the product.
If you have questions or comments about the content of the instruction manual, ask us or E-Mail us.
1

1. GETTING STARTED

This chapter provides a brief overview of the LSG-H Series, the package contents, instructions for first time use and an introduction to the front panel, rear panel and GUI.

1-1. LSG-H Series Introduction

The LSG-H Series is a family of high-performance DC electronic loads positioned to test a wide range of different power sources. The DC electronic loads are fully programmable to simulate anything from basic static loads to complex dynamic loads. With the ability to operate independently or in parallel, the LSG-H Series is extremely robust and capable of molding to any test environment.
Please note that throughout this manual the term “LSG-H Series” refers to any one of the models in the series lineup, unless specifically stated otherwise.

1-1-1. Model Line Up

There are a total of 3 DC electronic load models and 1 booster pack model.
Model
Operating Voltage (DC)
Current
Power
LSG-175H
5V~800V
8.75A
175W
LSG-350H
5V~800V
17.5A
350W
LSG-1050H
5V~800V
52.5A
1050W
Booster Model
Operating Voltage (DC)
Current
Power
LSG-2100SH
5V~800V
105A
2100W
2

1-1-2. Main Features

Performance
High voltage input (800V) High capacity when used in parallel / booster: 875W,43.75A(LSG-175H x 5) 1750W,87.5A(LSG-350H x 5) 5250W, 262.5A (LSG-1050H x 5) 9450W, 472.5A (LSG-1050H + LSG-2100SH x 4) High resolution – 16 bit
Features
7 operating modes: CC, CV, CR, CP, CC+CV, CR+CV, CP+CV Independent and parallel operation Fully programmable with normal and fast sequences Soft start Dynamic mode OCP, OVP and other protection features Remote sense Integrated meter Rack-mountable
Interface
USB, RS-232C and GP-IB External voltage or resistance control Front panel trigger out BNC Front panel voltage/current monitoring BNC Rea panel voltage/current monitoring Analog external control

3

1-2. Accessories 1-2-1. Accessories

Standard Accessories
Part number
Description
Accessories CD-ROM
Instruction manual Programming manual USB driver
Region dependent
Power cord
PEL-011
Load input terminal Cover x1 M3 Screw x1
M3
screw
PEL-012
Terminal fittings: 2 sets of bolts/ nuts /springs /washers (type: M8) Terminal cover x2
M8 x 20
Spring washer Flat washer
M8 nut
61SF-062104N1
Front terminal washers. (M6) x2
PEL-013 (LSG-2100SH only)
Flexible terminal cover:
Velcro
fasteners x4
Rubber
sheeting x2
PEL-014
Frame control connector with strain relief x2.
Strain relief
Connector
GTL-255 (LSG-2100SH only)
Frame Link Cable
4
Optional Accessories
Part number
Description
3813-030D0501
CR123A 3V lithium battery for clock.
GRA-413
Rack mount bracket for booster LSG­2100SH for EIA/JIS
GRA-414-E
Rack mount frame for LSG-175H, LSG-350H, LSG-1050H /EIA
GRA-414-J
Rack mount frame for LSG-175H, LSG-350H, LSG-1050H /JIS
GTL-248
GP-IB cable, 2.0m
GTL-246
USB cable, Type A - Type B
PEL-010
Dust Filter
PEL-004
GPIB option
Options
Part number
Description
PEL-005
Connect Cu Plate
PEL-006
Connect Cu Plate
PEL-007
Connect Cu Plate
PEL-008
Connect Cu Plate

1-2-2. Package Contents

Check the contents before using the instrument.
Opening the box
Contents (single unit)
Main unit Accessories CD Terminal fittings
Power cord x1 (region dependent)

5

1-3. Appearance 1-3-1. Front Panel

LSG-175H / LSG-350H
LSG-1050H
P0
P1
P4
P7
CAL.
P2
P5
P8
Lock
P3
P6
P9
Utility
Local
File
0
1
4
7
2
5
8
3
6
9
EnterClear
Shift
Preset
Load
On/ Off
Main
Help
FUNC
Short
TRIG OUTI MON OUT
5 - 800V
1050W
0 – 52.5A
V MON OUT
LSG-2100SH Booster Pack
LINK STBY
Clear
Shift
Preset
Load
On/
Off
Main
Help
FUNC
Short
V MON OUT
I MON OUT
TRIG OUT
P7
CAL . Utility
Local
File
7 8 9
Enter
175W
5 – 800V
0 – 8.75A
4 5 6
P8
P9
P4
P5
P6
P3
P2
P1
1 2 3
P0
0
LCD Display
Function keys
Power key
FUNC/File
Help/Utility
Short
Load On/Off
Scroll wheel
Number pad
Air inlet
Main/Local
Enter key
Clear key
USB Port
Shift key
Preset key
TRIG
OUT
I MON
OUT
V MON
OUT
Input
terminals
6
Name explanation
Air Inlet (Front grille)
The air inlet has a removable dust filter. Please do not lift up the product, while touching the front grille.
LCD display
3.5-inch LCD display
Function keys
The function keys directly correspond to the soft menus at the bottom of the display.
ON/STBY
Turns the unit on or puts the unit into standby mode. Use the power switch on the rear panel to turn the unit off.
Main/Local
Main
Main: Sets the operating mode: CC, CV, CR, CP mode.
Local (Shift > Main): Puts the instrument back into local mode from remote mode.
FUNC/File
FUNC
FUNC: Sets the program function, sequence function or other special functions.
File (Shift > FUNC): Accesses the file system.
Help/Utility
Help
Help: Access the help menu.
Utility (Shift > Help): Access the utility menu.
Short
Short
Pressing the Short key will simulate shorting the input terminals. The Short key will be lit when active.
Load on/off
Load
On/
Off
Turns the load on or off. The Load On/Off key will be lit when active.
Scroll wheel
Use the scroll wheel to navigate the menu system. Pushing the scroll wheel will toggle between coarse and fine adjustment, or Select digit.
Enter
Press the Enter key to select highlighted menu items.
Utility
Help
Shift
>
File
FUNC
Shift
>
Local
Main
Shift
>
Enter
7
Clear/Lock
Lock
Clear
Clear: Clears the current parameter values.
Lock (Shift + Clear): Locks the front panel keys and selector knob.
Number pad
P0
P1
P4
P7
CAL.
P2
P5
P8
Lock
P3
P6
P9
0
1
4
7
2
5
8
3
6
9
Clear
Number pad: Used to enter numerical values. P0~P9 (Preset + Number keys): Loads one of 10 preset settings.
Shift
Shift
Shift: Used in conjunction with other keys to select secondary functions.
Preset
Preset
Used in conjunction with the number pad to save or load preset settings P0 to P9.
USB Port
USB A port. Used for save and recall functions.
Front panel input terminals
5 - 800V
175W
0 – 8.75A
Negative terminal.
Positive terminal.
8
IMON Out
I MON OUT
Current monitor BNC terminal: Output connector used to monitor the current by outputting a voltage. An output voltage of 10V corresponds to the full scale current for the H and L ranges. 1V corresponds to the full scale current in the M range.
VMON Out
V MON OUT
Voltage monitor BNC terminal: Output connector used to monitor the voltage by outputting a voltage. An output voltage of 8V corresponds to the full scale voltage.
TRIG OUT
TRIG OUT
Trigger out BNC terminal: Outputs a pulse signal during sequence or dynamic operation. The trigger signal has a 4.5V output with a pulse width of a least 2us and an impedance of 500Ω.
LINK/STBY Indicator (LSG-2100H)
LINK STBY
The LINK and STBY indicators indicate when the booster pack is properly connected and when the power has been turned on, respectively.
9

1-3-2. Rear Panel

LSG-175H / LSG-350H
LSG-1050H
LSG-2100SH Booster Pack
Frame control ports
J1, J2
Remote sense
input
Rear panel
input
Exhaust
Power socket
and switch
GP-IB port
USB device port
USB port
RS232C port
Monitor Out ports
J3
Variable
Resistor
10
Name explanation
RS-232C Port GP-IB USB B
The USB B, RS-232C and GP-IB port are used for remote control.
USB B port
RS-232C 9 pin DSUB port.
GP-IB 24 pin female.
Frame control ports J1, J2
FRAME CONT
J 1
J 2
J1: The J1 is assigned to external control. J2: The J2 is used for parallel operation control.
Monitor Out ports J3
J3: The J3 connector is assigned to current and voltage
monitor out.
Variable Resistor
The variable resistors are used to adjust the full scale and offset setting for the input value of the external control sources such as voltage or resistance.
Exhaust fan
The exhaust fan is used to expel the heat from the unit. Please ensure there is at least 20cm distance between any object and the fan.
11
Rear Panel Input terminals
Rear Panel Input Terminals. Electrically connected to the front panel input terminals. Accepts M8 bolts or M4/M3 sized screws. See page 22 (1-4-8. Using the Rear
Panel Input Terminals) for connection details.
Remote Sensing Terminals
Sensing terminals for remote sense. See page 28 (1-4-
11.Remote Sense).
Accepts M3 sized screws.
Power Socket
Power Socket: 100~120V, 200~240V 47~63Hz.
Power Switch
Turns the unit on/off.
USB A
USB A Slave port. USB 1.1/2.0
12

1-3-3. Display

Date
setting area
Operation
status
Measurement area
Mainframe status panel
Soft menus
ModeCCI Range
H 8.75A
V Range
H800V
Function
Static
Configure
0.00
V
0.0000
A
0.00
W
SlewRate 140.00
CC B Value 0.0000
CC A Value 0.0000
LOADRS232
A Value
Fine
01/Oct/2017
mA/us
A
A
panel
Setting area
The setting area is used to display and edit the settings for the current mode / function.
Measurement area
Displays the voltage, current and power values.
Date
Displays the date
Mainframe status panel
The mainframe status panel displays the status of the load, remote control and short function. When an icon is green it indicates that the function is off. When the icon is orange, the function is on.
Operation Status Panel
This status panel is used to display the status of the current mode.
Soft menus
The soft menus are used to select different functions or parameters.
13

1-4. First Time Use Instructions

Use the procedures below when first using the LSG-H Series to install the rack mount kit, power up the instrument, set the internal clock, restore the factory default settings and check the firmware version. Lastly, the Conventions section will introduce you to the basic operating conventions used throughout the user manual.

1-4-1. Rack Mount Kits

Description
The LSG-H Series has a number of rack mount options for installation. The GRA-413 rack mounts are suitable for the LSG-2100SH booster pack. The GRA-414 rack mounts are capable of holding 1x LSG-1050H or 2x LSG­175H/LSG-350H units. For installation details, please see the GRA-413 and GRA-414 Rack Mount Assembly Manual. Please see your distributor for which rack mount is suitable for your application.
GRA-413(For LSG-2100SH)
EIA rack:128 mm JIS rack:149 mm
128
(149)
4
8
2
.
6
5
3
2
.
5
14
GRA-414-E (EIA standard)
132
382
.
5
477. 6
GRA-414-J (JIS standard)
149
3
8
2
.
5
4
7
7
.
6
15

1-4-2. Power Up and Self-Test

Operation
1. Insert the AC power cord into the power socket.
2. Turn the external power switch on. (O → —)
3. If the unit doesn’t turn on, press the On/Standby key for a second. The ON/STBY key will go from standby (red) to on (green).
4. The unit will show the splash screen and then load the settings from when the unit was last powered down.
5. To turn off the power, press the ON/STBY key again for a second.
Note
If the LSG-H Series fails to start up properly or does not turn on, please see your local distributor.

1-4-3. Load Default Settings

Description
When first using the LSG-H Series, recall the factory default settings to ensure the unit is in a known state. See page 163 (7-3. LSG-H Series Default Settings) for a list of the default settings.
Operation Press
Shift
>
File
FUNC
in order,
press Media/Default [F1] or Factory Default [F2] to set.
Media
Default
Factory Default
Save Recall
LOADRS232
A Value
01/Oct/2017
Load Default Setup
CC
8.75A 800V
Static
Recall The Default Settings!
Pressing F2 Again will
Warning!!!
16

1-4-4. Setting the Date and Time

Description
The date and time settings are used to time-stamp files when saving files. The date and time is shown on top of the LCD display.
Operation
Press
Shift
>
Utility
Help
> Time Set [F4] in order,
and set the date and time.
Settings:
Month, Day, Year, Hour, Minute
System
Info
Load Interface Time Set
LOADRS232
01/Oct/2017
Other
0
Hour 9
Year 2017
Minute
Day
Month
1
10
Date/Time
Date
17

1-4-5. Load Wiring

Wire Gauge considerations
Before connecting the unit to a power source, the wire gauge must be taken into account. Load wires must be large enough to resist overheating when a short-circuit condition occurs as well as to maintain a good regulation. The size, polarity and length of a wire are all factors in determining if a wire will withstand short circuiting.
Wires that are selected must be large enough to withstand a short circuit and limit voltage drops to no more than 2V per wire. Use the table below to help make a suitable selection.
AWG Gauge
Conduct or Diameter mm
Ohms / km
Max amps for chassis wiring
0000
11.684
0.16072
380
000
10.4038
0.2027
328
00
9.26592
0.25551
283 0 8.25246
0.32242
245
1
7.34822
0.40639
211
2
6.54304
0.51266
181 3 5.82676
0.64616
158 4 5.18922
0.81508
135
5
4.62026
1.02762
118
6
4.1148
1.29593
101 7 3.66522
1.6341
89 8 3.2639
2.0605
73
9
2.90576
2.59809
64
10
2.58826
3.27639
55
11
2.30378
4.1328
47
12
2.05232
5.20864
41
13
1.8288
6.56984
35
14
1.62814
8.282
32
15
1.45034
10.44352
28
16
1.29032
13.17248
22
17
1.15062
16.60992
19
18
1.02362
20.9428
16
19
0.91186
26.40728
14
20
0.8128
33.292
11
21
0.7239
41.984
9
18
Load Line Inductance Considerations
When using the LSG-H Series load generator, voltage drop and voltage generated due to load line inductance and current change must be taken into account. Extreme changes in voltage may exceed the minimum or maximum voltage limits. Exceeding the maximum voltage limit may damage the LSG-H Series.
To determine the voltage generated, the following equation can be used. E = L x (∆ I / ∆ T)
E= voltage generated L=load line inductance
I= change of current (A) T= time (us)
Load line inductance (L) can be approximated as 1uH per 1 meter of wire. (∆ I / ∆ T) is the slew rate in A/us.
The diagram above shows how changes in current can affect voltage.
I
Time
Min. V
Current
Voltage
T
Time
E
19
Limiting Load line inductance
Load line inductance can be reduced in two methods.
Method 1
Ensure load wires are as short as possible and twist the positive and negative load wires together.
“Twisted pair” will be shown on any connection diagram
where the load wires should be twisted together.
Method 2
Current change can be limited by limiting the slew rate or response speed when switching in CR and CC mode.
DUT
-
+
Electronic
Load
+
-
Twisted
pair
Power source
DUT
-
+
Electronic
Load
+
-
Power source
20

1-4-6. Load Wire Connections

Description
The LSG-H Series has input terminals on both the front and rear panels. Follow the procedures below for all load connections. Please adhere to the following precautions to ensure your safety and to protect the unit from damage.
Connection
When connecting the LSG-H Series to the power source, make sure that the polarity of the connection between the DUT and the unit matches.
Ensure that the maximum input voltage is not exceeded. The maximum input voltage is 800 volts.
Caution
If the polarity to the input terminals is reversed, the reverse voltage protection function is tripped. The reverse voltage protection function is tripped when reverse voltages greater than about -0.3V are detected.
Warning
Do not touch any of the input terminals when the voltage is applied to an input terminal.
Warning
Connecting the input terminals to the wrong polarity can damage the power source or the LSG-H Series.
Warning
The front panel and rear panel input terminals are physically connected. Any voltage that is input to one set of terminals will also appear on the other set of terminals.
DUT
-
+
Electronic
Load
+
-
Power source
Power source
21

1-4-7. Using the Front Panel Input Terminals

Description
The front panel input terminals feature polarity-distinct caps and accept M6 sized crimped terminals.
Caution
The front panel input terminals on the LSG-H Series are physically connected to the rear panel terminals.
Step
1. Turn the power off from the rear panel or put the unit into standby mode.
2. Turn the power off from the power source.
3. Connect the load wires to the input terminals: Connect the positive (+) input terminal on the load generator to the high potential output of the power source. Connect the negative (-) input terminal to the low potential output of the power source.
- potential + potentional
Positive
terminal
Negative
terminal
22

1-4-8. Using the Rear Panel Input Terminals

Description
The rear panel input terminals accept up to M8-sized crimped terminals. The rear terminals come with a load input terminal cover for safety.
Caution
The front panel input terminals on the LSG-H Series are physically connected to the rear panel terminals.
Steps
1. Turn the power off from the rear panel or put the unit into standby mode.
2. Turn the power off from the power source.
3. Connect the load wires to the input terminals: Connect the positive (+) input terminal on the load generator to the high potential output of the power source. Connect the negative (-) input terminal to the low potential output of the power source.
+ potentinal
- potential
23

1-4-9. Using the Terminal Cover (PEL -011)

Description
The rear panel terminal cover should be used to prevent electric shock. The rear panel terminal covers should always be used when connecting a load to the rear panel terminals. As the front panel and rear panel terminals are physically connected, the terminal cover should also be used as a safety measure when a power source is connected to the front terminals
Caution
Ensure the power is off before making any connections to the LSG-H Series.
Note: In the following diagrams, the cable wiring is not
shown for clarity.
Steps(1/2)
1. Remove the screw holding the top cover to the bottom cover.
1
2. Line-up the bottom covers with the notches in the output terminals.
3. Place the top terminal cover over the bottom cover.
2
3
24
Steps(2/2)
4. Use your thumb to slide the terminal covers shut, as shown in the diagram below.
4
5. When the top and bottom covers are flush, reinsert the screw that was removed in step 1.
5
25

1-4-10. Using the Terminal Cover (PEL -013)

Description
The flexible rear panel terminal cover should be used when the load wiring becomes too thick to be used with the PEL-011 terminal cover. This is especially true when using the load generators in parallel. Like the PEL-013 terminal cover, the PEL-011 is used to prevent electric shock. The rear panel terminal covers should always be used when connecting a load to the rear panel terminals.
Caution
Ensure the power is off before making any connections to the booster pack.
Steps
1. Wrap the insulation sheets around the terminals and load cables, as shown below. Make sure the terminals and any exposed wires are covered by the sheets.
Insulation sheet
1
2. Secure the insulation sheets using the supplied velcro fasteners. 2 fasteners should be used for each sheet.
Fasteners
2
26

1-4-11. Using the Terminal Cover

Description
After connection is finished, please lock terminal cover to avoid electric shock when using the frame control terminal.
Caution
Ensure the power is off, before making any connections to the booster pack.
Steps
Install the terminal cover as shown in the picture below.
27

1-4-12. Using the Monitor out Cover

Description
After connection is finished, please lock monitor out cover to avoid electric shock when not using the monitor out ports.
Steps
Install the monitor out cover as shown in the picture below.
28

1-4-13. Remote Sense

Description
Remote sense can be used to help compensate for long cable length. The longer the cable, the higher the potential resistance and inductance, therefore a short cable is best. Twisting the cable can help reduce induced inductance and using the remote sensing terminals compensates the voltage drop seen across the load leads, especially leads with higher resistance. This is useful when used in CV, CR or CP mode.
Steps
1. Turn the power off from the rear panel or put the unit into standby mode.
2. Turn the power off from the power source.
3. Connect the sense wires to the remote sensing terminals: Connect the positive sense (+S) terminal to the high potential output of the power source. Connect the negative sense (-S) terminal to the low potential output of the power source.
DUT
-
+
Programable
Electronic
Load
+
-
+S
-S
Twisted
pair
Power source
29

1-4-14. Firmware Update

Description
The LSG-H Series allows the firmware to be updated by end-users. Before using the LSG-H Series, please check the TEXIO TECHNOLOGY website or ask your local distributor for the latest firmware.
Caution
Before updating the firmware, please check the firmware version.
Operation System version
1. Press
Shift
>
Utility
Help
in order.
2. Select System/Info [F1].
3. The System information is listed on the LCD display. Model: Model number of the LSG-H. Serial Number: Serial number of the LSG-H. Firmware Ver: Firmware version of the LSG-H. http: Texio website address.
4. To view other system information, press System [F1] and select Memo.
System
Info
Load Interface Time Set
LOADRS232
01/Oct/2017
Model: LSG-xxxxH
http://www.texio.co.jp
Firmware Ver: x.xx.xxx
Serial Number: xxxxxxxx
Other
Operation Update Firmware
1. Insert a USB drive into the USB port. Ensure the USB drive has the firmware file located in the root directory.
2. Press
Shift
>
Utility
Help
in order.
3. Select USB with the Media [F1] soft-key.
4. Press the File Utility [F5] soft-key.
5. Select the *.UPG upgrade file and press Select [F1] twice. Once to select the file and once to confirm.
6. Wait for the update to complete and reset the power when prompted.
Caution
Do not turn the load generator off or remove the USB drive when the firmware is being read or upgraded.
30

1-4-15. Conventions

The following conventions are used throughout the user manual. Read the conventions below for a basic grasp of how to operate the LSG-H Series menu system using the front panel keys.
Soft Menus
The F1 to F5 function keys at the bottom of the LCD display correspond directly to the soft menus on top.
P0
P1
P4
P7
CAL.
P2
P5
P8
Lock
P3
P6
P9
Utility
Local
File
0
1
4
7
2
5
8
3
6
9
EnterClear
Shift
Preset
Load
On/ Off
Main
Help
FUNC
Short
F1 ~ F5
Function keys
Soft menus
ModeCCI Range
H 8.75A
V Range
H800 V
Function
Static
Configure
0.00
V
0.0000A
0.00W
SlewRate 140.00
CC B Value 0.0000
CC A Value 0.0000
LOADRS232
A Value
Fine
01/Oct/2017
mA/us
A
A
Select Sub Menu
Configure
Pressing this type of soft menu will enter a submenu.
31
Toggle Parameter or State
Mode
CC
Function/Item
Parameter or State
This type of soft-menu icon has the function /item on the top of the label and the selected setting or mode on the bottom of the label. Repeatedly press the associated function key (F1~F5) to cycle through each setting. For example, repeatedly pressing the F1 key will cycle through the CC, CR, CV and CP modes.
Mode
CR
Mode
CC
Mode
CV
Mode
CP
For some parameters, a popup window will also appear. Selection of the setting is the same. Repeatedly pressing the relevant function key (F1~F5) will cycle through each setting. The selection on the popup window will also be reflected on the label.
ModeCCI Range
H 8.75A
V Range
H800V
Function
Static
Configure
0.00
V
0.0000A
0.00W
SlewRate 140.00
CC B Value 0.0000
CC A Value 0.0000
LOADRS232
A Value
Fine
01/Oct/2017
mA/us
A
A
LOW
Middle
High
87.5mA
0.875A
8.750A
label
Popup window
Prameter selection
32
Parameter Input
The scroll wheel, Enter key and number pad can be used to edit parameter values.
Number pad
Scroll wheel
Enter key
P0
P1
P4
P7
CAL.
P2
P5
P8
Lock
P3
P6
P9
0
1
4
7
2
5
8
3
6
9
Clear Enter
1. Use the scroll wheel to move the cursor to the desired parameter. A scroll bar is shown when there are additional parameters off-screen.
ModeCPI Range
H 8.75A
V Range
H800V
Function Dynamic
Configure
0.00
V
0.0000A
0.00W
Timer1 0.025
Level 2 0.00
Level
1
0.00
LOADRS232
Fine
01/Oct/2017
ms
W
W
Scroll bar
Cursor
2. Press the Enter key to select the parameter. The parameter will become highlighted in white.
3. Then use the number pad* or scroll wheel** to edit the parameter value.
ModeCCI Range
H 8.75A
V Range
H800V
Function
Static
Configure
0.00
V
0.0000A
0.00W
SlewRate 140.00
CC B Value
CC A Value 0.000
LOADRS232
A Value
Fine
01/Oct/2017
mA/us
AA1.000
Parameter
The parameter value is canceled when press the Clear key.
4. Press the Enter key again to finish editing the parameter value.
33
Using the Scroll Wheel to Edit a Parameter**
**To edit a parameter using the scroll wheel, simply turn the scroll wheel. Clockwise increases the value, counterclockwise decrease the value. Pressing the scroll wheel when a parameter is highlighted allows you to change the step resolution. There are two different step resolution methods: Step Mode and Cursor Mode.
Step Mode
This is the default step resolution method and will only be available to use when it is applicable (Indicated by Fine or Coarse in the Operation Status panel). When a parameter is highlighted (step 3 above) pressing the scroll wheel will toggle the step resolution between fine and course. For details on how to set the step resolution
ModeCCI Range
H 8.75A
V Range
H800V
Function
Static
Configure
0.00
V
0.0000A
0.00W
SlewRate 140.00
CC B Value
CC A Value 0.000
LOADRS232
A Value
Fine
01/Oct/2017
mA/us
A
A
1.000
Highlighted parameter
Coarse/Fine adjustment
+
Cursor Mode
This method must first be enabled before it can be used. Pressing the scroll wheel when a parameter is highlighted allows you to set the step resolution by a digit value. An orange line will appear under the currently selected digit value. Repeatedly pressing the scroll wheel moves to the next digit.
ModeCCI Range
H 8.75A
V Range
H800V
Function
Static
Configure
0.00
V
0.0000A
0.00W
SlewRate 140.00
CC B Value
CC A Value 0.0000
LOADRS232
A Value
Cursor
01/Oct/2017
mA/us
A
A
1.0000
+
Cursor Mode Indicator
0.00
w
LOADRS232
A
A
Highlighted parameter
Cursor position
34
Entering Alphanumeric Characters
When renaming files, creating memos or notes, you will be required to enter alphanumeric characters when the
character entry screen appears. Only alphanumeric characters as well as space [ ], underscore [_] and minus [-] characters allowed.
1. Use the scroll wheel to move the cursor to the desired character.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
1 2 3 4 5 6 7 8 9 0 _ 1
Rename:
Filename
Cursor
2. Press the
Enter
key or Enter Character [F1] to
select a character.
OR
Enter
Character
3. To delete a character, press Back Space [F2].
4. To save the file name or memo, press Save [F3].
35

1-4-16. Help Menu

When any function key has been pressed or when a menu has been opened, the HELP key can be used to display a detailed description.
Help Menu
1. Press any function key or soft-menu key.
2. Press
Help
to see the help contents on that
particular function key or menu.
3. Use the scroll to navigate the help contents.
4. Press the Exit [F5] key to exit the help menu.
LOADRS232
01/Oct/2017
Exit
HELP
Press F5 to exit the Help mode. Rotate the VARIABLE knob to scroll all
the contents.
-End-
36

2. OPERATION

2-1. Basic Operation

The LSG-H Series supports 7 main operating modes:
CC, CC+CV, CR, CR+CV, CV, CP, CP+CV

2-1-1. CC Mode

Description
In Constant Current Mode the load units will sink the amount of current programmed. Regardless of the voltage, the current will stay the same. For more details on CC mode, please see the appendix on page 171 (7-5-1. CC Mode).
Warning
If you change the mode or the range when the load is already on, the load will be turned off automatically.
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Select CC mode with the Mode [F1] soft-key.
4. Select the current range with the I Range [F2] soft­key.
I Range:
High, Middle, Low
5. Select the voltage range with the V Range [F3] soft­key. V Range:
High, Low
6. Set the current level parameters using the scroll wheel and number pad. For Static mode, set CC A Value and /or CC B Value. For Dynamic mode, set Level1 and Level2. The maximum and minimum current levels depend on the selected ranges.
7. To add CV mode to CC mode (CC+CV), see page 42 (2-1-6. +CV Mode).
8. Set the remaining basic configuration settings such as the slew rate, and switching function settings. See page 47 (2-2. Basic Configuration) for details.
37
Display
Mode
CC
I Range H 8.75A
VRange
L 80V
Function
Static
Configure
0.000
V
0.0000
A
0.00
W
SlewRate 140.00
CC B Value 0.0000
CC A Value 0.0000
LOADRS232
A Value
Fine
01/Oct/2017
mA/uS
A
A
Mode
Current range
Voltage range
Active setting
Current setting A Current setting B
Note
Basic CC mode configuration is complete. See page 47 (2-2. Basic Configuration) for more configuration options. The current range and voltage range applies to all the operating modes.
38

2-1-2. CR Mode

Description
In Constant Resistance Mode, the unit will maintain a constant resistive load by varying the current. CR mode uses Ω (resistance) or S (conductance) for the setting units. For more details on CR mode, please see the appendix on page 172 (7-5-2.CR Mode).
Warning
If you change the mode or the range when the load is already on, the load will be turned off automatically.
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Select CR mode with the Mode [F1] soft-key.
4. Select the current range with the I Range [F2] soft­key. I Range:
High, Middle, Low
5. Select the voltage range with the V Range [F3] soft­key. V Range:
High, Low
6. Set the resistance or conductance level parameters using the scroll wheel and number pad. For Static mode, set CR A Value and/or CR B Value. For Dynamic mode, set Level1 and Level2. The maximum and minimum conductance/ resistance levels depend on the selected current range.
7. To add CV mode to CR mode (CR+CV), see page 42 (2-1-6. +CV Mode).
8. Set the remaining basic configuration settings such as the slew rate, and switching function settings. See page 47 (2-2. Basic Configuration) for details.
Display
ModeCRI Range
H 8.75A
V Range
L 80V
Function
Static
Configure
0.000
V
0.0000
A
0.00
W
SlewRate 14.000
CR B Value 0.54422
CR A Value 0.54422
LOADRS232
A Value
Fine
01/Oct/2017
mA/uS
Mode
Current range
Voltage range
Active setting
Conductance/ Resistance settings
39
Note
Basic CR mode configuration is complete. See page 47 (2-2. Basic Configuration) for more configuration options. The current range and voltage range applies to all the operating modes.

2-1-3. CR Units

Description
The CR setting units can be set to Ω (resistance) or mS (conductance).
Operation
1. Make sure the load is off.
2. Press
Main
> Configure [F5] > Other [F2] in order,
and set the CR Unit setting.
CR Unit:
or mS for the setting units.
40

2-1-4. CV Mode

Description
In Constant Voltage Mode, the unit will maintain a constant voltage. In CV mode you set the constant voltage level. For more details on CV mode, see the appendix on page 174 (7-5-4.CV Mode).
Warning
If you change the mode or the range when the load is already on, the load will be turned off automatically.
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Select CV mode with the Mode [F1] soft-key.
4. Select the current range with the I Range [F2] soft­key.
I Range:
High, Middle, Low
5. Select the voltage range with the V Range [F3] soft­key.
V Range:
High, Low
6. Set the voltage level parameters using the scroll wheel and number pad. Set CV A Value and/or CV B Value. The maximum and minimum voltage levels depend on the selected voltage range.
7. Set the remaining basic configuration settings such as the response settings. See page 47 (2-2. Basic Configuration) for details.
Display
ModeCVI Range
H 8.75A
V Range
L 80V
Response
Slow
Configure
0.000
V
0.0000
A
0.00
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
Mode
Current range
Voltage range
Active
setting Current setting
Voltage settings
Note
Basic CV mode configuration is complete. See page 47 (2-2. Basic Configuration) for more configuration options. The current range and voltage range applies to all the operating modes.
41

2-1-5. CP Mode

Description
In Constant Power Mode, the unit will maintain a constant power by varying the current. For more details on CP mode, see the appendix on page 173 (7-5-3.CP Mode).
Warning
If you change the mode or the range when the load is already on, the load will be turned off automatically.
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Select CP mode with the Mode [F1] soft-key.
4. Select the current range with the I Range [F2] soft­key. I Range:
High, Middle, Low
5. Select the voltage range with the V Range [F3] soft­key. V Range:
High, Low
6. Set the power level parameters using the scroll wheel and number pad. For Static mode, set CP A Value and/or CP B Value. For Dynamic mode, set Level1 and Level2. The maximum and minimum power levels depend on the selected current range. For static mode, the parameter that is set last becomes the “active” setting. This will be shown in the Operation Status Panel.
7. To add CV mode to CP mode (CP+CV), see page 42 (2-1-6. +CV Mode).
8. Set the remaining basic configuration settings such as the slew rate, and timer settings. See page 47 (2-2. Basic Configuration) for details.
Display
ModeCPI Range
H 8.75A
V Range
H 800V
Function
Static
Configure
0.00
V
0.0000
A
0.00
W
CP B Value 0.00
CP A Value 0.00
LOADRS232
A Value
Fine
01/Oct/2017
W
W
Current range
Active setting
Current setting
Power settings
+CV OFF
Mode
Voltage
range
42
Note
Basic CP mode configuration is complete. See page 47 (2-2. Basic Configuration) for more configuration options. The current range and voltage range applies to all the operating modes.

2-1-6. +CV Mode

Description
+CV mode can be added to CC, CR and CP mode.
The +CV settings apply to all applicable modes.
Operation
1. Make sure the load is off.
2. Press
Main
.
And select to Mode, I Range, and V Range.
3. Set the +CV voltage level. (You may need to scroll down to the +CV setting)
+CV:
OFF ~ rated voltage+5%
Display
Mode
CP + CV
I Range H 8.75A
V Range
L 80V
Function Dynamic
Configure
0.000
V
0.0000
A
0.00
W
+CV 5.500
Timer2 0.025
Timer1 0.025
LOADRS232
01/Oct/2017
V
ms
ms
+CV setting
Note
The +CV settings apply to all the applicable operating modes. For example: The +CV settings made in CR mode will be carried over to the +CV settings in CC and CP mode.
Note
Only in +CV settings, the external control is not possible. See page 133 (4-1-3. External Voltage Control – Operation) for +CV settings with external control.
43

2-1-7. Turning on the Load

Description
The load can be turned on and off by pressing the
Load
On/ Off
key.
The
Load
On/
Off
key will turn orange when the load is “on”.
The LOAD icon in the mainframe status panel will turn orange when the load is on.
Display
LOADRS232
01/Oct/2017
LOAD on
Note
The load can be set to automatically turn on at start up. See page 59 (2-3-4. Auto Load Configuration). The load can be turned on via remote control. See the programming manual. The load can be turned on via external control. See page 140 (4-1-8. Turning the Load On using External Control). By default the load will automatically turn off if the range or operating mode (CC, CV, CR, CP) is changed. To disable this behavior, Set Load Off (Mode) and Load Off (Range) to the OFF setting. See page 59 (2-3-5.Load Off
(Mode) and Load Off (Range)) for details.
44

2-1-8. Shorting the Load

Description
The Short key can be used to simulate a short circuit of the load input terminals. A short circuit is simulated by:
Setting the current to the maximum value in CC mode. Setting the resistance to the minimum value in CR mode. Setting the voltage to the minimum value in CV mode. Setting the power to the maximum value in CP mode. When the load is shorted, the external controller also sends a short signal. See page 144 (4-1-15. Short Control) for usage details.
Operation
The short function can be turned on and off by pressing the
Short
key.
The
Short
key will turn red when the short function is
active. The Short icon will appear when the short function is active.
Display
LOADRS232SHORT
01/Oct/2017
SHORT on
Note
If the load is already off, pressing the Short key will turn the load on (shorted) at the same time. Pressing the Short key again will also turn the load off again as well. If the load is already on and the Short key is pressed, then when the Short key is pressed again the load will remain on (the electronic load will return to its previous load condition). The Short key will be disabled if the Short Function setting is turned off. See page 45 (2-1-11.Short Function
Enable/Disable) for details.
45

2-1-9. Safety Short

Description
When activated, the safety short function only allows the short key to be used when the load is already on.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Short Safety.
When set to OFF, the load can be shorted at any time. When set to ON, the load can only be shorted when the load is already on.
Short(Safety):
OFF,ON
Note
The Short Safety setting will be grayed out if Short Function is set to OFF. See page 45 (2-1-11.Short Function
Enable/Disable) for Short Function.

2-1-10. Short Key Configuration

Description
The Short key can be configured to Toggle or Hold. By Default the Short key is set to Toggle.
Toggle: Pressing the Short key will toggle the shorting
function on or off.
Hold: Holding the short key will short the load.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Short Key setting.
Short Key:
Toggle, Hold
Note
The Short Safety setting will be grayed out if Short Function is set to OFF. See page 45 (2-1-11.Short Function
Enable/Disable) for Short Function.

2-1-11. Short Function Enable/Disable

Description
The short key can be disabled to prevent the operator accidentally shorting the load.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Short Function.
When set to OFF, the Short key is disabled and all short configuration options in the Main > Configure> Other menu are also disabled. When set to ON, the Short key is enabled.
Short Function:
OFF,ON
46

2-1-12. Locking the Front Panel Controls

Description
The keys and scroll wheel on the front panel can be locked to prevent settings from being changed.
Operation
The keys can be locked and unlocked by press
Shift
>
Lock
Clear
in order.
The
Load
On/
Off
key will not be locked if the load is on.
Display
LOCK will appear in the Mainframe status panel when the keys are locked.
LOADRS232
01/Oct/2017
LOCK
LOCK icon
47

2-2. Basic Configuration

The basic configuration settings are the common configuration settings that are used for each operating mode. After selecting a basic operating mode (CC, CR, CV and CP mode), the slew rate, switching function, response rate and other common parameters should be configured.

2-2-1. Select the Switching Function

Description
The LSG-H Series has two switching function, static mode and dynamic mode. The switching function allows the LSG-H Series to switch between two preset levels. Static mode can only switch between the two levels manually, while Dynamic mode switches between each level automatically based on a timer.
Static mode: A Value, B Value
Dynamic mode: Level1, Level2 When the unit is set to static mode, only one value (A Value or B Value) can be active at a time. The active value is shown in the operation status panel.
Configure
W
LOADRS232
A Value
Fine
Active setting
When the unit is set to dynamic mode, the unit will switch between Level1 and Level2 based on the Timer1 and Timer2 parameters, shown below.
Note
Dynamic mode is not available for CV mode.
Time
Value
Dynamic mode
Timer1
Timer2
Level1
Level2
Timer1
48
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Select Dynamic or Static mode with the Function [F4] soft-key. A different switching mode can be set for CC, CR and CP mode.
4. See page 48 (Static Mode Operation) for Static Mode. See page 49 (Dynamic Mode Operation) for Dynamic Mode.
Static Mode Operation
For static mode, select whether A Value or B Value is the “active” setting, press the
Shift
>
Preset
keys.
The “active” value will be shown in the Operation Status
Panel.
The load can be “on” when switching between A Value
and B Value.
ModeCPI Range
H 8.75A
V Range
H 800V
Function
Static
Configure
0.00
V
0.0000
A
0.00
W
CP B Value 0.00
CP A Value 0.00
LOADRS232
A Value
Fine
01/Oct/2017
W
W
Active setting
A Value
B Value
+CV OFF V
Static mode
49
Dynamic Mode Operation
For dynamic mode, set the Timer1 and Timer2 parameters using the scroll wheel and number pad.
Timer1 sets the Level1 on-time. Timer2 sets the Level2 on-time. Take the slew rate settings into consideration when setting the timers.
ModeCPI Range
H 8.75A
V Range
L 80V
Function Dynamic
Configure
0.000
V
0.0000
A
0.00
W
Timer1 0.025
Level2 0.00
Level1 0.00
LOADRS232
Fine
01/Oct/2017
mS
W
W
Dynamic mode
Level1
Level2
Timer1
The frequency of the dynamic switching is output via the TRIG OUT BNC.
50

2-2-2. Select the Display Units for Dynamic Mode Levels

Description
When Dynamic mode is selected, the Level1 and Level2 values can be set to either discrete values or as a percentage of a set value.
The setting applies to all applicable operation modes. By default the units are set to Value. When Percent is chosen, 100% = 100% of the Set power, current or resistance value.
Operation
1. Make sure the load is off.
2. Press
Main
> Configure [F5] > Other [F2] in order,
and set the Dyna. Level setting.
Dyna. Level:
Value, Percent
Note: Select of Dyna. Level is not available
for CV mode.
Value Setting
Percent Setting
Set
Time
Value
Level
Time
Level1
/ Level2
Value
Level2
/ Level1
51

2-2-3. Select the Switching Time Configuration for Dynamic Mode

Description
The switching time for dynamic mode can be configured to switch between two preset on-times (Timer1, Timer2) or by setting a switching frequency and duty cycle.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Dyna. Time setting.
Dyna. Time:
T1/T2 Freq, Duty
Note: Select of Dyna. Time is not available
for CV mode.
T1/T2 Setting
Freq,Duty Setting
Duty
Time
Frequency
Value
Timer1
Time
Value
Timer2
52

2-2-4. Slew Rate

Description
The current slew rate can be set for CC and CR mode. The slew rate setting is used to limit the change in current when switching. For static mode, only a single slew rate can be set.
Operation
1. Make sure the load is off.
2. Press
Main
.
3. Set the slew rate(s) using the scroll wheel and number pad. For static mode, only a single slew rate can be set. For dynamic mode, set both the rising and falling slew rates. Take the timer settings into consideration when setting the slew rates.
Note: Slew rate setting is not available
for CP and CV mode.
Dynamic mode
Static mode
Time
Value
Slew Rate
Time
Value
Slew Rate
Slew Rate
53

2-2-5. CV, +CV Mode Response Speed

Description
The response speed setting is the response speed for the negative feedback control of the load current when used in CV, +CV mode. Response speed settings are only applicable to CV, +CV mode. Response speed settings of the +CV mode becomes same as Response speed settings of the CV mode. With the +CV mode, Response speed settings is not displayed. The response speed is different from CV mode with the +CV mode.
A response speed that is too fast could cause the unit to be unstable. Reducing the response speed can improve stability.
Operation
1. Make sure the load is off.
2. Press
Main
, and make sure the unit is in CV
mode by using the Mode [F1] soft-key.
3. Select the response speed with the Response [F4] soft-key.
Response:
Fast, 6, 5, 4, 3, 2, 1, Slow
CV mode: The response speed settings
Fast, 6, 5, 4 are the same.
+CV mode: The response speed settings
5 and 4 are the same. The response speed settings Slow and 1 is the same.
Display
ModeCVI Range
H 8.75A
V Range
L 80V
Response
Slow
Configure
0.000
V
0.0000
A
0.00
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
Response setting
54

2-2-6. CC, CR and CP Mode Response Speed

Description
By default, the “normal current response” speed is set to
1/1. The response speed can be reduced to 1/2, 1/5, 1/10.
Reducing the current response speed can affect other settings such as the slew rate and soft start settings.
Operation
1. Make sure the load is off.
2. Press
Main
> Configure [F5] > Other [F2] in order,
and set the Response parameter.
Response:
1/1, 1/2, 1/5, 1/10
55

2-3. Advanced Configuration Settings

Use the advanced configuration settings to configure settings other than those described in the basic configuration chapter.

2-3-1. Soft Start Setting

Description
The soft start setting is used to limit the amount of input current at start-up or from when the Von Voltage threshold is tripped. The soft start setting only applies to CC, CR and CP mode.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Soft Start time.
Soft Start:
OFF, 1~200ms
Soft Start: OFF
Rise voltage
Time
Input current
Rise current
Soft Start: ON
Rise voltage
Time
Input current
Rise current
56

2-3-2. Von Voltage Settings 2-3-2-1. Von Voltage Level

Description
The Von Voltage is the threshold voltage at which the load module will start to sink current.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Von Voltage level.
Von Voltage:
0.00 ~ rated voltage
2-3-2-2. Von Voltage Delay
Description
Von Delay is the amount of time the unit will wait before turning the load on after the Von Voltage threshold has been latched. This will prevent overshoot current from affecting the Von Voltage threshold.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Von Delay time.
Von Delay:
OFF, 2.0~60ms
Von voltage
Voltage
Time
Input voltage
Current
Von
Input current
Time
Load ON
57
2-3-2-3. Von Voltage Latch
Description
When Von Latch is set to OFF, the load will turn off when the voltage drops below the Von Voltage threshold level. When Von Latch is set to ON, the load will continue to sink current after being “latched”, even if the voltage drops below the Von Voltage threshold level. By default Von Latch is set to OFF.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Von Latch setting.
Von Latch:
OFF, ON
Von Latch: ON
Voltage
Time
Input voltage
Current
Von
Input current
Time
Load ON
Von Latch: OFF
Voltage
Time
Input voltage
Current
Von
Input current
Time
Load ON
Load OFF
58

2-3-3. Timer Functions 2-3-3-1. Count Time

Description
When Count Time timer is set to on, it will count the elapsed time from when the load was turned on to when it was turned off.
This function is applicable to manual and automatic shutdown (such as from protection functions such as UVP etc.) The elapsed time will be shown in the display Measurement area.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and turn the Count Time on or off.
Count Time:
ON, OFF
Display
0.000
V
0.0000
A
0.00
W
LOADRS232
01/Oct/2017
0:00:05
Elapsed time
2-3-3-2. Cut Off Time
Description
The Cut Off Time function will turn the load off after a set­amount of time. After the load has been turned off, a popup screen will LCD display the voltage level when the load was turned off.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Cut Off Time.
Cut Off Time:
OFF, 1 s ~ 999 h 59m 59 s
Display
ModeCPI Range
H 8.75A
V Range
L 80V
Function Dynamic
Configure
0.000
V
0.0000
A
0.00
W
Timer1 0.025
Level2 0.00
Level1 0.00
LOADRS232
Fine
01/Oct/2017
mS
W
W
0:00:05
Cut off time
Time Up
Voltage : 5.1223V
Enter
Voltage at cut off time
59

2-3-4. Auto Load Configuration

Description
The LSG-H Series can be configured to automatically load program function, normal sequence function, fast sequence function or manual operation at startup. By default, Auto Load is OFF and Auto Load On is Load.
Operation
1. Press
Shift
>
Utility
Help
> Load [F2] in order.
2. Turn Auto Load Off or On. When set to OFF, the Auto Load setting is disabled.
Auto Load :
OFF, ON
3. Select the Auto Load On configuration. This will select whether the LSG-H Series will automatically load program function, normal sequence function, fast sequence function or manual operation.
Auto Load On:
Load : manual operation
Prog : program function
NSeq : normal sequence function
FSeq : fast sequence function

2-3-5. Load Off (Mode) and Load Off (Range)

Description
By default the load will automatically turn off when the either the operating mode (CC, CV, CR, CP) or the range (I range, V range) is changed. To allow the load to stay on when the operating mode is changed, set the Load Off (Mode) setting to OFF. To allow the load to stay on when the current or voltage range is changed, set the Load Off (Range) setting to OFF. By default, these settings are set to ON.
Operation
1. Press
Shift
>
Utility
Help
> Load [F2] in order.
2. Select Load Off (Mode) setting. When set to OFF, the load will stay on when the operating mode is changed.
Load Off(Mode):
OFF,ON
3. Select Load Off (Range) setting. When set to OFF, the load will stay on when the range is changed.
Load Off(Range):
OFF,ON
60

2-4. Step Resolution Configuration

There are two different ways (Cursor Mode and Step Mode) to set the resolution when using the scroll wheel to edit parameters. Step Mode is the default method. Only one mode can be active at a time; when one mode is active, the other mode is deactivated.

2-4-1. Cursor Mode Configuration

Description
Cursor Mode allows you to edit the selected parameter one digit at a time. When editing a parameter, pressing the scroll wheel determines which digit is selected. Turning the scroll wheel will then edit the parameter by the step resolution of the digit. See the Conventions section on page 33 (Cursor Mode of
1-4-15.Conventions) for operation details.
Operation
Press
Main
> Configure [F5] > Next Menu [F4] >
Knob [F2] in order,
and set the Status setting is set to Cursor.
Display
Parallel Knob External
Previous
Menu
3.00
CCL Step 0.300
CCM Step 0.00300
LOADRS232
01/Oct/2017
mS
mA
A
CRH Step
CCH Step
Status
0.0300
CursorA
CC
8.75A 80V
Static
Configure
61

2-4-2. Step Mode Configuration

Description
When set to Step Mode, the voltage, current, resistance and power settings can have the step resolution configured. The step resolution refers to the step resolution of the coarse adjustment for these settings. The fine adjustment cannot be configured. See the Conventions section on page 33 (1-4-15.
Conventions_ Step Mode) for details on how to switch
between coarse and fine adjustment modes.
Settings
The step resolution of each setting is configured separately for each current range.
Settings
Description
CCH Step
CC mode, I Range = High
CCM Step
CC mode, I Range = Middle
CCL Step
CC mode, I Range = Low
CRH Step
CR mode, I Range = High
CRM Step
CR mode, I Range = Middle
CRL Step
CR mode, I Range = Low
CVH Step
CV mode, V Range = High
CVL Step
CV mode, V Range = Low
CPH Step
CP mode, I Range = High
CPM Step
CP mode, I Range = Middle
CPL Step
CP mode, I Range = Low
62
Operation
1. Press
Main
> Configure [F5] > Next Menu [F4] >
Knob [F2] in order,
and set the desired step resolution settings.
2. Set the desired step resolution settings. (The step resolution settings are only available when Status=Step (coarse/fine))
For example if the step resolution for CCM Step is
0.006A, then the resolution can be incremented in
0.006A steps.
Display
Parallel Knob External
Previous
Menu
3.00
CCL Step 0.300
CCM Step 0.00600
LOADRS232
01/Oct/2017
mS
mA
A
CRH Step
CCH Step
Status
0.0300
Step (coarse/fine)
A
CC
8.75A 80V
Static
Configure
63

2-5. Protection Settings

The Protection settings are used to prevent damage to the unit or the power source by excessive current, voltage or power.
An alarm is generated and a message is displayed on the LCD display when a protection setting is tripped. When an alarm is activated, the load is turned off (or limited), and the ALARM STATUS pin of the J1 on the rear panel (pin 16) turns on (open collector output by a photo coupler). The protection settings can be used regardless of whether the remote sense connections are used or not.

2-5-1. OCP

Description
For OCP, the LSG-H Series can be configured to either limit the current or turn off the load. The OCP levels can be set to 10% higher than the rated current.
Operation
Press
Main
> Configure [F5] > Protection [F1] in order,
and set the OCP Level and OCP Setting.
OCP Level:
rated current + 10%
OCP Setting:
LIMIT, Load Off
Alarm
When OCP Setting is configured to Load Off, a message will be displayed on the LCD display when OCP is tripped. The Enter key must be pressed to clear the alarm message. When configured to LIMIT, OCP will be displayed on the LCD display when the OCP is tripped and the current will be limited to the OCP Level setting.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
OCP Alarm
Please Press Enter
To Clear Alarm
OCP
OCP indicator
Alarm message
when OCP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
64

2-5-2. OPP

Description
For OPP, the LSG-H Series can be configured to either limit the power or turn off the load. The OPP levels can be set to 10% higher than the rated power.
Operation
Press
Main
> Configure [F5] > Protection [F1] in order,
and set the OPP Level and OPP Setting.
OPP Level:
rated power + 10%
OPP Setting:
LIMIT, Load Off
Alarm
When OPP Setting is configured to Load Off, a message will be displayed on the LCD display when OPP is tripped. The Enter key must be pressed to clear the alarm message. When configured to LIMIT, OPP will be displayed on the LCD display when the OPP is tripped and the power will be limited to the OPP Level setting.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
OPP Alarm
Please Press Enter
To Clear Alarm
OPP
OPP indicator
Alarm message
when OPP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
65

2-5-3. UVP

Description
If the UVP is tripped, the LSG-H Series will turn off the load. The UVP levels can be set from 0V to 10% higher than the rated voltage.
Operation
Press
Main
> Configure [F5] > Protection [F1] in order,
and set the UVP Level.
UVP Level:
OFF, 0~ rated voltage + 10%
Alarm
The UVP indicator will only appear on the LCD display when the input voltage is below the UVP level. Pressing the Enter key will clear the message. The UVP indicator will remain on the display until the voltage level rises back above the UVP level.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
UVP Alarm
Please Press Enter
To Clear Alarm
UVP
UVP indicator
Alarm message
when UVP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
66

2-5-4. UVP Ring Time

Description
The UVP Ring Time settings allows the UVP alarm to keep sounding for a user-set amount of time after the UVP has been tripped. The alarm will continue ringing for the set amount of time even if the voltage rises back above the UVP level~ unless the alarm is cleared manually.
Operation
Press
Main
> Configure [F5] > Protection [F1] in order,
and set the UVP Ring Time.
UVP Ring Time:
OFF, 0~600s,Infinity
Alarm
When the voltage dips below the UVP level, the UVP indicator and message will appear on the LCD display. The UVP buzzer will sound if UVP Ring Time is set. Under this scenario the following outcomes are possible:
Pressing the Enter key will clear the message and the buzzer. The UVP indicator will remain on the display until the voltage level rises back above the UVP level. If the UVP Ring Time is allowed to elapse, the buzzer will stop. However the UVP indicator and message will remain on screen until the voltage increases and the message is cleared. If the voltage rises back above the UVP level, the UVP indicator will be cleared from the display, but the buzzer will continue to sound until the UVP Ring Time has elapsed and the message will remain until it has been cleared.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
UVP Alarm
Please Press Enter
To Clear Alarm
UVP
UVP indicator
Alarm message
when UVP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
67

2-5-5. OVP

Description
If the OVP is tripped, the LSG-H Series will turn off the load. The OVP levels can be set from 0V to 10% higher than the rated voltage.
Operation
Press
Main
> Configure [F5] > Protection [F1] in order,
and set the OVP Level.
OVP Level:
OFF, 0~ rated voltage + 5%
Note: To turn OVP off, set the OVP voltage greater than the
current rating voltage + 10%.
Alarm
The OVP indicator and a message will only appear on the LCD display when the input voltage is below the OVP level. Pressing the Enter key will clear the message. The OVP indicator will remain on the display until the voltage level falls back above the OVP level.
Note: Please use the input voltage to the LSG-H Series in
800V or less.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
OVP Alarm
Please Press Enter
To Clear Alarm
OVP
OVP indicator
Alarm message
when OVP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
68

2-5-6. UnReg

Description
The UnReg error message will appear on the LCD display when the electronic load is operating in an unregulated state.
Alarm
The UnReg indicator will appear on the LCD display when the set load is inadequate for the power source. To clear the UnReg indicator, increase the current of power source or reduce the load requirements.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
UnReg
UnReg indicator
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure

2-5-7. Para

Description
The Para error message will appear on the LCD display when the LSG-H is used in parallel and if an error is produced.
Alarm
The Para error message indicates one of the following possible conditions: UnReg, R.OCP, OTP. To clear the Para indicator, remove the cause of the alarm.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
Para
Para indicator
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
69

2-5-8. RVP

Description
If the RVP is tripped, the LSG-H Series will turn off the load.
Alarm
The RVP error message indicates when the terminal voltage is negative. The Enter key must be pressed to clear the alarm message.
Display
8.653
V
50.006
mA
0.4327
W
CV B Value 80.000
CV A Value 80.000
LOADRS232
A Value
Fine
01/Oct/2017
V
V
RVP Alarm
Please Press Enter
To Clear Alarm
RVP
RVP indicator
Alarm message
when RVP is set to Load Off
ModeCVI Range
L87.5mA
V Range
L 80V
Response
Fast
Configure
70

2-6. System Settings

The following section covers a number or miscellaneous system settings such as:
Input control settings Sound settings Alarm tone settings Display settings Language settings Input/output trigger setting
All system settings are accessible in the Utility menu.

2-6-1. Input control settings

Description
The Knob Type setting determines if values are updated immediately as they are edited or if they are only updated after the Enter key is pressed. The Updated setting is applicable for when the load is already on and the user wishes to change the set values (current, voltage, etc.) in real time. The Old setting is will only update the values after the Enter key is pressed.
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Knob type.
Knob type:
Updated, Old

2-6-2. Sound Settings 2-6-2-1. Speaker Settings

Description
Turns the speaker sound on or off for the user interface, such as key press tones and scrolling tones.
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Speaker settings on or off.
Speaker:
ON, OFF
Note: When set to OFF, the speaker setting will not
disable the tones for Go-NoGo or protection alarms.
71
2-6-2-2. Alarm Tone Settings
Description
The alarm tone for the unit can be turned on or off in the utility menu. The alarm tone can be set separately.
Alarm Tone: alarm of the protection (OCP, OPP, UVP,
and OVP) settings.
UnReg Tone: alarm of operating in an unregulated
state.
Go-NoGo Tone: alarm of Go-NoGo testing.
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the alarm tone settings on or off.
Alarm Tone:
ON, OFF
UnReg Tone:
ON, OFF
Go_NoGo Tone:
ON, OFF
Note: The Alarm tone and Go_NoGo Tone settings ignore
the Speaker setting.

2-6-3. Display Settings

Description
Sets the contrast level for LCD display.
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Contrast and Brightness settings.
Contrast:
3 ~ 13 (low ~ high)
Brightness:
50 ~ 90 (low ~ high)

2-6-4. Language Settings

Description
The LSG-H Series supports only English.
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Language setting.
Supported languages:
English
72

2-6-5. Input / Output Trigger Settings 2-6-5-1. Trigger in Delay

Description
The Trig in Delay setting determines how long to delay any action after a trigger is received. Default setting 0.0us
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Trig in Delay setting.
Trig in Delay:
0.0 – 5000us
2-6-5-2. Trigger Out Width
Description
The Trigger Out Width setting sets the trigger output signal’s pulse width. Default setting 10.0us
Operation Press
Shift
>
Utility
Help
> Other [F5] in order,
and set the Trig Out width.
Trig Out width:
2.5– 5000us

2-6-6. Measure Average

Description
The Measure Average setting is used to set the speed of the measurement display. The setting has three modes. They are slow, normal and fast The default mode for Measure Average setting is slow.
Operation
1. Press
Shift
+
Utility
Help
> Other[F5].
2. Set the Measure Average setting.
Slow Normal Fast Default
Average 64 times; Display spend time:1280ms Average 16 times; Display spend time:320ms Average 4 times; Display spend time:320ms Slow mode
73

2-7. Go-NoGo

The Go-NoGo configuration is used to create pass/fail limits on the voltage or current input. If the voltage/current exceeds the pass/fail limits, an alarm will be output. The Go-NoGo configuration can be used with the program operation to create complex pass/fail tests.

2-7-1. Setting the Go-NoGo Limits

Description
The Go-NoGo setting limits can be set as either discrete high & low values or as a percentage offset from a center value. The limit level of the CC, CR and CP mode become the voltage level. The limit level of the CV mode becomes the current level. The set range of the limit level of the voltage/ current is rated voltage/ current of the voltage/ current range H.
Operation
1. Press
Main
> Configure [F5] > Go-NoGo [F3] in order.
2. Select Entry Mode and choose how to set the pass/fail limits. Value will allow you to set the limits as discrete values. Percent will allow you to set the limits as a percentage offset from a center value.
3. If Entry Mode was set to Value, Set the High & Low limit values.
High:
0~ rated current/voltage
Low:
0 ~ rated current/voltage
4. If Entry Mode was set to Percent, Set the Center voltage/current and High, Low % values.
Center:
0~ rated current/voltage
High:
Center + 0~100% of Center current/voltage
Low:
Center - 0~100% of Center current/voltage
5. Set the Delay Time. The delay time setting will delay activating the Go-NoGo testing by a specified amount of time. The delay setting can compensate for startup oscillation and other instabilities during startup.
Delay Time
0.0~1.0 seconds (0.1s resolution )
Note
When the Main settings are saved or recalled, the Go-NoGo settings are also saved / recalled. See the Save/Recall chapter for details, page 75 (2-8. Save / Recall).
74

2-7-2. Running a Go-NoGo Test

Description
Go-NoGo test results are displayed in the measurement panel of LCD display.
GO indicates pass (good). NG indicates fail (no good).
Operation
1. Press
Main
> Configure [F5] > Go-NoGo [F3] in
order.
2. Set SPEC Test to ON. When SPEC Test is ON, SPEC will appear in the operation status panel of LCD display. This means the unit is ready for Go-NoGo testing.
3. Turn the load on. The test starts from the time the load was turned on + the Delay Time.
Display: GO
0.000
V
0.0000
A
0.00
W
Level1 0.00
LOADRS232
01/Oct/2017
W
SPEC test = ON
SPEC
GO
Test result
Display: NG
0.000
V
0.0000
A
0.00
W
Level1 0.00
LOADRS232
01/Oct/2017
W
SPEC test = ON
SPEC
NG
Test result
75

2-8. Save / Recall

The LSG-H Series can save and recall system settings, preset data, memory data, Go-NoGo settings as well as normal and fast sequences to internal memory or to USB.

2-8-1. File Structure

Description
The LSG-H Series file system can save files to internal memory (Media | Memory) and external memory (Media | USB). To save or recall Memory, Setup or Preset data, the LSG­H Series uses a three tier system where files are saved or recalled in the following order: Active settings <> Internal memory <> USB. This can be best described in the picture below.
Local Memory
Media | Memory
Media | USB
Memory data
Setup data x1 Nseq. data x1
Fseq. data x1
Preset data x1
Memory data (M001 ~ M256)
Setup data (001 ~ 100)
Preset data (P0 ~ P9)
Memory data (M001 ~ M256)
Setup data (001 ~ 100)
Nseq. data x1 Fseq. data x1
Preset data (P0 ~ P9)
Active Settings
Memory data x1
For example: To load Preset Data P7 from USB, you must first load Preset Data P0~P9 to internal memory, then from internal memory load Preset P7 to be the active preset setting. For normal and fast sequences however, files can be saved or recalled directly to/from USB memory.
76

2-8-2. File Types

Memory Data
Memory data contains general settings and is used for creating programs. Memory Data contains the operating mode, range, response and Go/NoGo settings. Memory data can be stored both internally and externally to USB. Preset data and Memory data store the same contents.
Internal Format
M001 ~ M256
External Format
model no_file no.M example: 1050H_01.M
Setup Data
Setup data contains all general configuration settings, protection settings; program and program chain settings, as well as parallel configuration settings.
Internal Format
1 ~ 100
External Format
model no_file no.S example: 1050H_00.S
Preset Data
Preset Data contains the same settings as the Memory Data. Preset Data contains the operating mode, range, response and Go-NoGo settings.
Internal Format
P0 ~ P9
External Format
model no_file no.P example: 1050H_00.P
NSeq Data
NSeq Data contains the Normal Sequence settings.
Internal Format
None
External Format
model no_file no.N example: 1050H_00.N
FSeq Data
FSeq Data contains the Fast Sequence settings.
Internal Format
None
External Format
model no_file no.F example: 1050H_00.F
77

2-8-3. Saving Files to Internal Memory

Description
When saving Memory, Setup or Preset Data to internal memory, the currently active setting is saved to one of the internal memory slots. Memory Data has 256 memory slots, Setup Data has 100 memory slots and Preset Data has 10 memory slots.
Memory Data Example
Active setting
M001
: :
M256
MXXX
Media | Memory
Display
Save
Data Type Memory
RS232
01/Oct/2017
Memory M256
A Value
CC
87.5mA 80V
Static
LOAD
Media
Memory
Recall
Memory
Save file location
Save file type
Operation
1. Press
Shift
>
File
FUNC
in order.
2. Select Memory with the Media [F1] soft-key.
3. Select the Data Type and choose the type of file to save.
Data Type:
Memory Data, Setup Data, Preset Data
4. Select which internal memory location to save the file.
Memory:
M001 ~ M256
Setup Memory:
1 ~ 100
Preset:
P0 ~ P9
5. Press Save [F3] to save. Save Ok will be displayed when the save has been completed.
Note
Normal Sequence and Fast Sequence data cannot be recalled from or saved to an internal memory slot.
78

2-8-4. Saving Files to USB Memory

Description
When saving files to USB memory, all the memory locations from the selected data type are saved as a single file to the USB file path directory.
Memory Data Example
Save file
Media | USB
M001
: :
M256
MXXX
Media | Memory
For example, Memory Data M001 to M256 is saved to a single file on USB.
Display
Save
Data Type Memory
RS232
01/Oct/2017
Save File 175H_01.M
A Value
CC
87.5mA 80V
Static
LOAD
Media
USB
Recall
USB
Save file type
175H_02.MRecall File
Path: usb:
Save file name
USB file path
File
Utility
Operation
(1/2)
1. Insert a USB drive into the USB port.
2. Press
Shift
>
File
FUNC
in order.
3. Select USB with the Media [F1] soft-key.
4. Select the Data Type and choose the type of file to save.
Data Type:
Memory Data, Setup Data, Preset Data, NSeq, FSeq
5. Select Save File and choose a save filename. Turn the scroll wheel to increase/decrease the file number.
Memory:
Model_file number.M
Setup Memory:
Model_file number.S
Preset:
Model_file number.P
NSeq:
Model_file number.N
FSeq:
Model_file number.F
79
Operation
(2/2)
6. Press Save [F3] to save. The file will be saved to the USB file path. Save Ok will be displayed when the save has been completed. If saving-over an existing file you will be asked to confirm the save.
Press the
Enter
key to confirm.
File Utilities
Press File Utility [F5] to access the file utility. See page 83 (2-
8-8. File Utility) for details.
Change the USB path. Rename files or create directories.

2-8-5. Recalling Files from Internal Memory

Description
When recalling Memory, Setup or Preset Data from the internal memory slots, the recalled file becomes the active setting. Memory Data has 256 memory slots, Setup Data has 100 memory slots and Preset Data has 10 memory slots.
Memory Data Example
Active setting
M001
: :
M256
MXXX
Media | Memory
Display
Save
Data Type Memory
RS232
01/Oct/2017
Memory M256
A Value
CC
87.5mA 80V
Static
LOAD
Media
Memory
Recall
Memory
Save file location
Save file type
80
Operation
1. Press
Shift
>
File
FUNC
in order.
2. Select Memory with the Media [F1] soft-key.
3. Select the Data Type and choose the type of file to recall.
Data Type:
Memory Data, Setup Data, Preset Data
4. Select which memory slot to recall from.
Memory:
M001 ~ M256
Setup Memory:
1 ~ 100
Preset:
P0 ~ P9
5. Press Recall [F4] to recall. For Memory Data and Preset Data, a popup window will
appear. Press the
Enter
key to confirm the recall.
Note
Normal Sequence and Fast Sequence data cannot be recalled from or saved to an internal memory slot. They can, however, be recalled directly from USB memory. See the next section below for details.

2-8-6. Recalling Files from USB Memory

Description
When recalling Memory, Setup or Preset files from USB memory, a single file from the USB drive will overwrite all the existing memory slots for the selected data type. For Normal or Fast Sequence files, the recalled file becomes
the active setting as these types of files don’t have an
internal memory slot.
Caution
You can only recall files from the same model.
Memory Data Example
Media | USBMedia | Memory
Recall file
M001
: :
M256
MXXX
For example, if the file 175H_01.M is recalled, all the Memory Data from M001 to M256 will be overwritten.
81
Display
Save
Data Type Memory
RS232
01/Oct/2017
Save File 175H_01.M
A Value
CC
87.5mA 80V
Static
LOAD
Media
USB
Recall
USB
Save file type
175H_02.MRecall File
Path: usb:
Save file name
USB file path
File
Utility
Operation
1. Insert a USB drive into the USB port.
2. Press
Shift
>
File
FUNC
in order.
3. Select USB with the Media [F1] soft-key.
4. Select the Data Type and choose the type of file to recall.
Data Type:
Memory Data, Setup Data, Preset Data, NSeq, FSeq
5. Select Recall File and choose a filename. Turn the scroll wheel to increase/decrease the file number.
Memory:
Model_file number.M
Setup Memory:
Model_file number.S
Preset:
Model_file number.P
NSeq:
Model_file number.N
FSeq:
Model_file number.F
6. Press Recall [F4] to recall. Recall Ok will be displayed when the recall has been completed.
File Utilities
Press File Utility [F5] to access the file utility. See page 83 (2-
8-8. File Utility) for details.
Change the USB path. Rename files or create directories.
Caution
If “Machine Type Error” is displayed it indicates that the file that you are trying to recall originated from a different model. You can only recall files from the same model.
82

2-8-7. Recall Memory Safety Setting

Description
By default when you try to recall a file or setting from memory, a message will appear asking you to press the Enter key to confirm. This is the standard safety measure to ensure that the wrong file/setting is not recalled. This safety measure can be disabled by setting the Mem. Recall setting to “Direct”.
Operation
Press
Main
> Configure [F5] > Other [F2] in order,
and set the Mem. Recall setting.
Mem. Recall:
Safety, Direct
Note
This setting only applies when recalling preset settings from internal memory, either by using the Presets keys (P0 - P9) or by using the File menu.
Preset keys: See page 84 (2-8-9-2.Quick Preset Recall). File menu: See page 79 (2-8-5.Recalling Files from Internal
Memory).
83

2-8-8. File Utility

Description
The file utility allows you to create new folders, rename files and set the USB path directory. It is only available for use with the USB external memory.
Operation
1. Insert a USB drive into the USB port.
2. Press
Shift
>
File
FUNC
> File Utility [F5] in order,
the file utilities screen appears.
Display
Select Rename
Previous
Menu
LOADRS232
01/Oct/2017
Path: usb:\Test
3 folder(s), 15 file(s)
New
Folder
Delete
Folder1 Folder2 Folder3 175H_01.M 175H_02.M 175H_03.M
16-Feb-17 13:46 18-Feb-17 11:16 19-Feb-17 08:32 01-Mar-17 10:12 03-Mar-17 13:13 23-Mar-17 09:02
USB path
cursor
Create a new Folder
Press New Folder [F2] to create a new folder. Use the on-screen display to enter the filename. A maximum of 8 characters.
Rename a Folder
1. Use the scroll wheel to move the cursor to the file/folder you wish to rename.
2. Press Rename [F3]. Use the on-screen display to enter the filename. A maximum of 8 characters.
Delete File or Folder
1. Use the scroll wheel to move the cursor to the file/folder you wish to delete.
2. Press Delete [F4].
3. Press Delete [F4] again to confirm the deletion.
84

2-8-9. Preset

The Preset key is used to save and recall preset settings from the front panel quickly. The presets have the same contents as memory data; this includes the operating mode, range, configuration settings and Go-NoGo settings.
2-8-9-1. Quick Preset Save
Description
The current settings can be saved to P0 ~ P9 using the Preset key and the number pad.
Operation
1. Press
Preset
.
2. Pressing
P0
0
~
P9
9
until a beep is heard.
The beep indicates that the setting was saved to the selected preset.
2-8-9-2. Quick Preset Recall
Description
Presets P0 to P9 can be recalled quickly by using the Preset key and the number pad.
Operation
1. Press
Preset
.
2. Press
P0
0
~
P9
9
.
3. Press
Enter
to confirm the recall when a popup
window appears.
4. Press
Preset
again to deactivate the preset key.
85

2-8-10. Default Settings 2-8-10-1. Factory Default Settings

Description
The factory default settings can be recalled at any time. See page 163 (7-3. LSG-H Series Default Settings) for a list of the factory default settings.
Operation
1. Press
Shift
>
File
FUNC
in order.
2. Select Default with the Media [F1] soft-key.
3. Press Factory Default [F2].
4. Press Factory Default [F2] again to confirm.
2-8-10-2. User’s Default Setting
Description
The currently active settings can be set as the “User’s
Default” settings.
Save User’s
Default Setting
1. Press
Shift
>
File
FUNC
in order.
2. Select Default with the Media [F1] soft-key.
3. Press Save [F3]. The User’s Default is saved immediately.
Recall User’s Default Setting
1. Press
Shift
>
File
FUNC
in order.
2. Select Default with the Media [F1] soft-key.
3. Press Recall [F4].
4. Press Recall [F4] again to confirm. The User’s Default must be saved first before it can be recalled.
86

3. Function MENU

3-1. Function Menu Overview

The Function menu can be used as a quick access hub to the Program, Normal Sequence, Fast Sequence, OCP Test, OPP Test or BATT Test function. It is also used to set Function specific settings:
Function Select. Complete Ring Time. NSEQ Timer.

3-1-1. Select a Function

Description
The Function Select option is used to turn a Program, Normal Sequence, Fast Sequence, some Test function (OCP, OPP and BATT) or off. Before one of these functions is turned on, they should be configured beforehand. Program, Sequences, OCP Test function, respectively. Refer to the following for those functions.
Program: page 90 (3-2.Program function ) Sequence: page 96 (3-3.Sequence function) OCP Test function: page 111 (3-4.OCP Test function ) OPP Test function: page 117 (3-5. OPP Test function ) BATT Test function: page 123 (3-6. BATT Test function )
Operation
1. Press
FUNC
.
2. Select Function Select and choose a function to turn on or choose to turn off the last function.
Function Select:
OFF, PROG, NSEQ, FSEQ,
OCP OPP BATT
Function Select Screen
Program
Fast
Sequence
PROG
RS232
01/Oct/2017
Normal
Sequence
OCP
Function Select
FUNCTION
Complete Ring Time
NSEQ Timer Elapsed
5 s
PROG
87
Note
After a function is selected, it is then turned on. PROG , NSEQ , FSEQ , OCP , OPP or BATT will appear at the top of the LCD display when the selected function is on. When in the Main menu, the PROG, NSEQ,FSEQ or OCP icon will appear prominently on the LCD display to remind the operator that a function is still on. The manual operation cannot be turned on when a Function mode is turned on.
Be sure to turn the selected function off to return to The manual operation.

3-1-2. Turning on the Load with the Selected Function

Description
When a function is turned on, the load can be turned on (with the selected function) by pressing Shift + Load.
Operation
1. Select the function (PROG, NSEQ, FSEQ, OCP, OPP or BATT).
2. Press
Shift
>
Load
On/
Off
in order.
The
Load
On/
Off
key will turn orange when the load is
“on”. The function icon (PROG , NSEQ , FSEQ, OCP, OPP or BATT) turns orange when the load is turned on.
3. Press
Load
On/
Off
. The load can be turned off.
Display
PROGRS232
03/Oct/2018
LOAD on with the selected function active
Note
The selected function will need to be turned off before a manual operation can be performed.
88

3-1-3. Complete Ring Time

Description
The Complete Ring Time function turns the alarm on for a user-set amount of time after a program, sequence or OCP Test function has finished.
Operation
1. Press
FUNC
.
2. Select Complete Ring Time and select how long the alarm should ring after a function has completed. The Complete Ring Time setting applies to all the functions.
Complete Ring Time:
OFF (Default), 1 – 600s, Infinity
Function Select Screen
Program
Fast
Sequence
PROG
RS232
01/Oct/2017
Normal
Sequence
OCP
Function Select
FUNCTION
Complete Ring Time
NSEQ Timer Elapsed
5 s
PROG
Note
The alarm may not sound if Alarm Tone is turned off (see page 71).
89

3-1-4. NSEQ Timer

Description
The NSEQ Timer setting determines whether the timer for the Normal Sequence function displays the elapsed time or the remaining time for both the current step and the overall test time for the sequence.
Operation
1. Press
FUNC
.
2. Select NSEQ Timer and select whether the current step and total test time is displayed as elapsed time or remaining time.
NSEQ Timer
Elapsed (Default ), Remaining
Function Select Screen
Program
Fast
Sequence
PROG
RS232
01/Oct/2017
Normal
Sequence
OCP
Function Select
FUNCTION
Complete Ring Time
NSEQ Timer Elapsed
5 s
PROG
Display example
Continue
NSEQRS232
01/Oct/2017
Run N.Seq.
0.000
V
0.0000
A
0.00
W
Step
Seq. No: 01
Loop: 0001
0003
0:00:05
0:00:05
Elapsed or remaining time for the current step
Elapsed or remaining time for the total test time
Note
When the total test time is >1000 hours, then the total test time will always be displayed as the elapsed time.
90

3-2. Program function

The LSG-H Series can create programs that are designed to step-through up to 16 pre-set load operations. The program function is a powerful tool that can allow you to perform a number of different operations in succession.
The execution time of each step is user-defined. Programs can be chained together to make larger programs. Up to 16 programs can be created for a program chain.
See page 75 for saving load operations (2-8.Save / Recall).

3-2-1. Program function Overview

Description
When you run a program, you are essentially executing up to 16 different load operations consecutively. Each of
the different load operations are “steps” in the program. A
program starts at step 01 and ends at step 16.
A program recalls the operating mode, range, static/dynamic mode, response speed and other settings of each step from stored memory. It also recalls the Go-NoGo settings. The same memory settings can be used for multiple steps. The execution time of each step is configurable. Applies the Go-NoGo settings for each step. Each step must be executed in order. Each step can be configured to automatically go to the next step or wait for confirmation from the user before proceeding to the next step. Individual steps can be skipped. Programs can be linked together to make program chains. Program chains need not be executed in order. There are 16 steps to a program. There are up to 16 programs to a chain.
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