TEXIO LW Series Manuel utilisateur

INSTRUCTION MANUAL

MULTI-INPUT ELECTONIC LOADING UNITS

LW SERIES

LW75-151Q LW151-151D

LW75-151D LW301-151S

EXTERNAL INTERFACE UNITS

IF-50GP IF-50USB

SAFETY

●Symbol in This Manual

This symbol indicates where applicable cautionary or other information is to be found.

●Power Source

This equipment operates from a power source that does not apply more than 250V rms between the

supply conductors or between both supply conductor and ground. A protective ground connection by

way of the grounding conductor in the power cord is essential for safe operation.

●Grounding the Product

This equipment is grounded through the grounding conductor of the power cord. To avoid electrical

shock, plug the power cord into a properly wired receptacle before connecting to the equipment input

or output terminals.

●Use the Proper Power Cord

Use only the power cord and connector specified for your product.

●Use the Proper Fuse

To avoid fire hazard, use a fuse of the correct type.

●Do not Operate in Explosive Atmospheres

To avoid explosion, do not operate this product in an explosive atmosphere.

●Do not Remove Cover or Panel

To avoid personal injury, do not remove the cover or panel. Refer servicing to qualified personnel.

●If the equipment is used in a manner not specified, the protection provided by the equipment may be

impaired.

TABLE OF CONTENTS

SAFETY

1. ABOUT THIS PRODUCT....................................................................................................................... 1

1-1 About This Manual............................................................................................................................ 1

1-2 Product Overview ............................................................................................................................. 1

1-3 Features............................................................................................................................................ 1

1-3-1 LW electronic loading unit.......................................................................................................... 1

1-3-2 IF-50GP (Option) ....................................................................................................................... 2

1-3-3 IF-50USB (Option)..................................................................................................................... 2

2. SPECIFICATIONS.................................................................................................................................. 3

2-1 aximum Input Rating......................................................................................................................... 3

2-2 Constant-Current Mode.................................................................................................................... 3

2-3 Constant-Resistance Mode .............................................................................................................. 4

2-4 Constant-Voltage Mode.................................................................................................................... 4

2-5 Constant-Power Mode...................................................................................................................... 5

2-6 Current Limitation ............................................................................................................................. 5

2-7 Switching Mode ................................................................................................................................ 6

2-8 DC Current Measurement ................................................................................................................ 6

2-9 DC Voltage Measurement ................................................................................................................ 6

2-10 DC Power Measurement................................................................................................................ 6

2-11 Voltage Remote Sensing ................................................................................................................ 7

2-12 External Contact Control ................................................................................................................ 7

2-13 External Voltage Control................................................................................................................. 7

2-14 Protection Functions....................................................................................................................... 7

2-15 Use Conditions, Size, etc. .............................................................................................................. 8

2-16 External Interface Control............................................................................................................... 8

2-17 Communication Specifications of IF-50GP .................................................................................... 8

2-18 Communication Specifications of IF-50USB .................................................................................. 8

3. PRECAUTIONS ..................................................................................................................................... 9

3-1 Checking Source Voltage ................................................................................................................. 9

3-2 Connecting Power Cable.................................................................................................................. 9

3-3 Instruction on Connecting Input Terminals....................................................................................... 9

3-4 Installation Environment................................................................................................................. 10

3-5 Current Limit Setting....................................................................................................................... 10

4. PANELS ................................................................................................................................................11

4-1 Front Panel ......................................................................................................................................11

4-2 Rear Panel...................................................................................................................................... 15

4-3 Optional Board Mount .................................................................................................................... 17

5. BEFORE USING UNIT......................................................................................................................... 18

5-1 Position of Voltage Remote Sensing Selector Switches................................................................ 18

5-2 Connection of Power Supply.......................................................................................................... 19

5-2-1 Connecting with input terminals on front panel ....................................................................... 19

5-2-2 Connecting with input terminals on rear panel........................................................................ 20

5-3 Turning On Power........................................................................................................................... 21

5-3-1 Display when turning on power ............................................................................................... 21

5-3-2 Setting when turning on power and storing setting ................................................................. 22

5-4 Alarm............................................................................................................................................... 23

5-4-1 EAR (External alarm)............................................................................................................... 23

5-4-2 OHA (Overheat alarm) .............................................................................................................. 23

5-4-3 OVA (Over-voltage application alarm) ....................................................................................... 23

5-4-4 OCA (Over-current input alarm) .............................................................................................. 23

5-5 Limit Functions ............................................................................................................................... 24

5-5-1 Over-power limit (OPL)............................................................................................................ 24

5-5-2 Current limit (CL) ..................................................................................................................... 24

5-6 Replacement of Power Fuse.......................................................................................................... 24

6. FUNCTIONS AND OPERATION PROCEDURES............................................................................... 25

6-1 Operation Method Selecting Function............................................................................................ 25

6-1-1 Selecting operation method..................................................................................................... 25

6-1-2 Switching method selection..................................................................................................... 26

6-1-3 Time-out time selection............................................................................................................ 26

6-1-4 Rear contact function selection ............................................................................................... 27

6-2 Function Setting Mode ................................................................................................................... 28

6-2-1 Function setting mode operation............................................................................................. 28

6-2-2 Delay time setting .................................................................................................................... 29

6-2-3 Tracking operation setting ....................................................................................................... 30

6-2-4 Discharge mode setting........................................................................................................... 31

6-2-5 Switching time setting method 1.............................................................................................. 32

6-2-6 Switching time setting method 2.............................................................................................. 33

6-2-7 Changing input voltage display and input power display ........................................................ 34

6-2-8 Changing input value display and set value display ............................................................... 34

6-2-9 Display of two input current values: The LW301-151S does not have this function............... 35

6-2-10 Increasing and decreasing set values of CC, CV and CP modes ........................................ 35

6-2-11 Increasing and decreasing set values of CR mode............................................................... 37

6-2-12 Setting CR mode value by means of voltage and current setting......................................... 39

6-2-13 Increasing and decreasing current limit set value................................................................. 40

6-3 Memory Functions ...................................................................................................................... 41

6-3-1 Storing preset values (discharge mode and set value) in EEPROM ...................................... 41

6-3-2 Storing key settings in EEPROM............................................................................................. 41

6-3-3 Recalling preset data with PRESET keys ............................................................................... 42

6-3-4 Checking preset data and increasing/decreasing set value when MAIN INPUT key is lit...... 42

6-3-5 Initializing set value ................................................................................................................. 43

6-4 Input Functions ............................................................................................................................... 44

6-4-1 Turning on input....................................................................................................................... 44

6-4-2 Turning off input....................................................................................................................... 44

6-5 Switching Functions........................................................................................................................ 45

6-5-1 Turning on/off switching........................................................................................................... 45

6-6 Delay Functions.............................................................................................................................. 46

6-6-1 Turning on input using delay function...................................................................................... 46

6-6-2 Turning off input using delay function...................................................................................... 46

6-7 Tracking Functions ......................................................................................................................... 47

6-7-1 Turning on/off tracking operation............................................................................................. 47

6-7-2 Increasing or decreasing set value in absolute value tracking mode ..................................... 48

6-7-3 Checking CR mode set resistance in absolute value tracking mode...................................... 48

6-7-4 Increasing or decreasing set value in % tracking mode ......................................................... 49

6-7-5 Checking set value in % tracking mode .................................................................................. 50

6-7-6 Example of increasing/decreasing set values with tracking mode active............................... 51

6-8 Releasing Alarms............................................................................................................................ 51

6-8-1 Occurrence of EAR (external alarm) and releasing it ............................................................. 51

6-8-2 Occurrence of OHA (overheat alarm) and releasing it............................................................ 52

6-8-3 Occurrence of OVA (over-voltage application alarm) and releasing it .................................... 52

6-8-4 Occurrence of OCA (over-current input alarm) and releasing it.............................................. 52

6-9 Key Lock Function.......................................................................................................................... 53

6-10 Usage of Voltage Remote Sensing Function ............................................................................... 53

7. EXTERNAL CONTACT CONTROL..................................................................................................... 54

7-1 Functions ........................................................................................................................................ 54

7-2 Specifications of Remote Contact Control Connector.................................................................... 54

7-3 Usage ............................................................................................................................................. 55

7-3-1 External alarm terminals....................................................................................................... 55

7-3-2 Selecting PRESET 1 to 4 keys using external contacts.......................................................... 55

7-3-3 Turning ON/OFF input select using external contacts ............................................................ 56

7-3-4 Turning ON/OFF main input using external contacts .............................................................. 56

8. EXTERNAL VOLTAGE CONTROL ..................................................................................................... 57

8-1 Pins for External Voltage Control ................................................................................................... 57

8-1-1 Specifications of J2.................................................................................................................. 57

8-1-2 Connecting external voltage source and J2 ............................................................................ 57

8-1-3 Specifications of controls......................................................................................................... 58

8-2 Usage of External Voltage Control Function .................................................................................. 58

8-2-1 Checking set value of external voltage control........................................................................ 58

8-2-2 Adjusting set value using external voltage .............................................................................. 59

8-2-3 Operation in CC mode............................................................................................................. 60

8-2-4 Relationship between external voltage and set value in CC mode ........................................ 61

8-2-5 Operation in CR/CV/CP mode................................................................................................. 62

8-2-6 Relationship between external voltage and set value in CR/CV/CP mode ............................ 62

9. REMOTE CONTROL ........................................................................................................................... 63

9-1 Connection of IF-50GP or 1F-50USB ............................................................................................ 63

9-1-1 Control through GP-IB............................................................................................................. 63

9-1-2 Control through USB ............................................................................................................... 63

9-1-3 Connection Figure of IF-50GP/USB........................................................................................ 64

9-1-4 Connection of IF-50GP/1F-50USB local bus .......................................................................... 65

9-2 Address Setting .............................................................................................................................. 65

9-2-1 Addresses ................................................................................................................................ 65

9-2-2 Address setting ........................................................................................................................ 66

9-2-3 Address setting range and set value ....................................................................................... 66

9-3 Precautions for Using GP-IB or USB ............................................................................................. 66

9-3-1 Using GP-IB............................................................................................................................. 66

9-3-2 Using USB ............................................................................................................................... 66

9-4 Precautions for Sending Commands ............................................................................................. 67

9-4-1 Sending commands................................................................................................................. 67

9-4-2 Command format..................................................................................................................... 67

10. COMMANDS...................................................................................................................................... 68

10-1 Setting Commands....................................................................................................................... 68

10-1-1 Setting units to be controlled ................................................................................................. 68

10-1-2 PRESET key selection .......................................................................................................... 68

10-1-3 Discharge mode setting......................................................................................................... 68

10-1-4 Main input ON/OFF ............................................................................................................... 69

10-1-5 Input select ON/OFF.............................................................................................................. 69

10-1-6 Setting discharge mode set value ......................................................................................... 70

10-1-7 Setting STEP value of CR mode........................................................................................... 70

10-1-8 Setting current limit value...................................................................................................... 71

10-1-9 Saving preset data in EEPROM ............................................................................................ 71

10-1-10 Turning on or off switching select function .......................................................................... 71

10-1-11 Setting switching frequency................................................................................................. 72

10-1-12 Setting switching duty.......................................................................................................... 72

10-1-13 Setting switching time.......................................................................................................... 72

10-1-14 Changing switching method ................................................................................................ 73

10-1-15 Turning on/off delay operation............................................................................................. 73

10-1-16 Setting delay time................................................................................................................ 73

10-1-17 Saving set values in EEPROM............................................................................................ 73

10-1-18 Saving discharge mode set value in EEPROM................................................................... 74

10-1-19 Saving current limit value in EEPROM................................................................................ 74

10-1-20 Setting time-out time............................................................................................................ 74

10-1-21 Resetting alarms.................................................................................................................. 74

10-1-22 Selecting input value display channel ................................................................................. 75

10-1-23 Selecting input value to be displayed.................................................................................. 75

10-1-24 Local setting (Canceling key locking) ............................................................................... 75

10-1-25 Setting lockout status .......................................................................................................... 75

10-1-26 Tracking setting ................................................................................................................... 76

10-1-27 Setting tracking mode.......................................................................................................... 76

10-1-28 Turning On/Off tracking operation ....................................................................................... 76

10-1-29 Increasing/decreasing set value in tracking operation........................................................ 77

10-2 Query Commands ........................................................................................................................ 78

10-2-1 Sending system addresses of controlled units...................................................................... 78

10-2-2 Sending addresses of all slave units..................................................................................... 78

10-2-3 Sending option board ID and model ID of unit ...................................................................... 78

10-2-4 Query about input value ........................................................................................................ 79

10-2-5 Query about selected PRESET key ...................................................................................... 79

10-2-6 Query about discharge mode................................................................................................ 79

10-2-7 Query about main input On/Off status................................................................................... 80

10-2-8 Query about input select status............................................................................................. 81

10-2-9 Inquiry about set values ........................................................................................................ 81

10-2-10 Query about STEP value in CR mode ................................................................................ 81

10-2-11 Query about set current limit ............................................................................................... 82

10-2-12 Query about switching select status.................................................................................... 82

10-2-13 Query about switching frequency........................................................................................ 83

10-2-14 Query about switching duty................................................................................................. 83

10-2-15 Query about set switching time ........................................................................................... 83

10-2-16 Query about switching method............................................................................................ 84

10-2-17 Query about delay function On/Off status ........................................................................... 84

10-2-18 Query about set delay time ................................................................................................. 84

10-2-19 Query about unit ID number................................................................................................ 85

10-2-20 Query about set time-out time............................................................................................. 85

10-2-21 Query about alarm status .................................................................................................... 86

10-2-22 Query about limit operation status....................................................................................... 86

10-2-23 Query about input value display channel ............................................................................ 87

10-2-24 Query about displayed input value...................................................................................... 87

10-2-25 Query about local lockout status ......................................................................................... 87

10-2-26 Query about tracking setting ............................................................................................... 88

10-2-27 Query about tracking mode................................................................................................. 88

10-2-28 Query about tracking operation On/Off status..................................................................... 88

10-2-29 Query about % tracking mode set value ............................................................................. 89

10-3 Command List .............................................................................................................................. 90

10-3-1 Setting commands................................................................................................................. 90

10-3-2 Query commands .................................................................................................................. 91

11. TROUBLE-LOOKING PHENOMENA ............................................................................................... 92

12. OUTSIDE DIMENSIONS ................................................................................................................... 93

1. ABOUT THIS PRODUCT

1-1 About This Manual

Applicable models: LW series electronic loading units

LW75-151Q, LW75-151D, LW151-151D and LW301-151S

Optional interface units for the LW series electronic loading units

IF-50GP: Interface for GP-IB communication

IF-50USB: Interface for USB communication

1-2 Product Overview

The LW series is a multi-input type electronic loading unit with several isolated input terminals. The

basic function of the LW series is the CC discharge mode using the input terminals on the rear panel.

Three discharge modes (CR, CV and CP), front input terminals, voltage remote sensing functions,

and control functions according to external analog voltages are also available as optional functions

on request. In addition, the LW series provides tracking, delay and four-point preset functions for a

wide variety of applications.

1-3 Features

1-3-1 LW electronic loading unit

・Tracking function (exclusive of LW301-151S)

The LW series employs a tracking function, which may vary the voltage and current of each

channel at the same ratio (or absolute value) simultaneously. It is possible to use the tracking

function independently in each channel or vary all channels simultaneously.

・Delay function (exclusive of LW301-151S)

The LW series has a delay function, which delays turning on or off the input of a specified

channel by specified time when turning on several channels. It is possible to set the delay time

of each channel independently in the range from 0.01 to 10.00 seconds.

・Preset function

The LW series has four-point preset memories, each of which may store the discharge mode

and set values of a channel. This function enables easy changing of the set values.

・Input value display function

The LW series displays the voltage, current and power on four-digit, seven-segment red LEDs.

・Individual input ON/OFF setting function

It is possible to turn on or off the input of each channel individually. The input ON/OFF

condition of each channel is indicated with an LED clearly.

・Individual switching ON/OFF setting function

It is possible to turn on or off the input of each channel individually. The switching ON/OFF

condition of each channel is indicated with an LED clearly.

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