Amada MU-100A User manual

AA04OM1170018-19
OPERATION MANUAL
Original instructions
HEAD CONTROLLER
MU-100A

MU-100A
Contents
1
Thank you for purchasing our Head Controller MU-100A.
Please read this manual carefully to ensure correct use. Keep the manual handy after
reading for future reference.
Contents
1. Special Precautions ........................................................................................................ 1-1
(1) Safety Precautions....................................................................................................... 1-1
(2) Precautions for Handling ............................................................................................. 1-4
(3) On Disposal ................................................................................................................. 1-4
(4) Model-Specific Function .............................................................................................. 1-5
(5) Warning Labels for Safety ........................................................................................... 1-5
2. Features ........................................................................................................................... 2-1
3. Packing List ..................................................................................................................... 3-1
(1) Accessories ................................................................................................................. 3-1
(2) Options ........................................................................................................................ 3-2
4. Name and Functions of Each Section ........................................................................... 4-1
(1) Front ............................................................................................................................ 4-1
(2) Rear............................................................................................................................. 4-3
5. Connection....................................................................................................................... 5-1
6. Interface ........................................................................................................................... 6-1
(1) INPUT and OUTPUT Connectors................................................................................ 6-1
(2) RS232C, RS485 and ETHERNET Connectors ......................................................... 6-10
7. Program Display After Power-On .................................................................................. 7-1
8. Function Setting .............................................................................................................. 8-1
(1) Function Menu ............................................................................................................. 8-1
(2) Setting Common Items (0=Setup) ............................................................................... 8-2
(3) Selecting Items Displayed on LCD (1=Monitor Display).............................................. 8-8
(5) Setting Communication Items (3=Communication) ................................................... 8-11
(6) Copying a Schedule (4=Duplicate) ............................................................................ 8-12
(7) Initializing Settings (5=Initialize) ................................................................................ 8-13
(8) Displaying Present Values (6=Manual) ..................................................................... 8-14
9. Schedule Setting ............................................................................................................. 9-1
10. Setting of Measurement Mode and Schedule............................................................. 10-1
(1) Synchro Mode “Disp Measure Mode : SYNC(0)”....................................................... 10-1
(2) Sequence Mode “Disp Measure Mode : SQNC(1)” ................................................... 10-3
(3) Sample Hold 1 Mode “Disp Measure Mode : SH1(2)” ............................................... 10-5
(4) Sample Hold 2 Mode “Disp Measure Mode : SH2(3)” ............................................... 10-6
(5) Sample Hold 3 Mode “Disp Measure Mode : SH3(4)” ............................................... 10-8
(6) Sequence Mode “Force Measure Mode : SQNC(0)” ............................................... 10-10
(7) Sample Hold 1 Mode “Force Measure Mode : SH1(1)” ........................................... 10-12
(8) Sample Hold 2 Mode “Force Measure Mode : SH2(2)” ........................................... 10-14

MU-100A
Contents
2
(9) Tangential Mode “Force Measure Mode : TANG(3)” ............................................... 10-16
11. Timing Chart (1-axis Type) ........................................................................................... 11-1
(1) Synchro Mode “Disp Measure Mode : SYNC(0)”....................................................... 11-1
(2) Sequence Mode “Disp Measure Mode : SQNC(1)” ................................................... 11-5
(3) Sample Hold 1 Mode “Disp Measure Mode : SH1(2)” ............................................... 11-7
(4) Sample Hold 2 Mode “Disp Measure Mode : SH2(3)” ............................................... 11-8
(5) Sample Hold 3 Mode “Disp Measure Mode : SH3(4)” ............................................... 11-9
(6) Sequence Mode “Force Measure Mode : SQNC(0)” ............................................... 11-10
(7) Sample Hold 1 Mode “Force Measure Mode : SH1(1)” ........................................... 11-12
(8) Sample Hold 1 Mode “Force Measure Mode : SH2(2)” ........................................... 11-13
(9) Tangential Mode “Force Measure Mode : TANG(3)” ............................................... 11-14
12. Timing Chart (2-axis Type) ........................................................................................... 12-1
(1) Synchro Mode “Disp Measure Mode : SYNC(0)”....................................................... 12-1
(2) Sequence Mode “Disp Measure Mode : SQNC(1)” ................................................... 12-5
(3) Sample Hold 1 Mode “Disp Measure Mode : SH1(2)” ............................................... 12-9
(4) Sample Hold 2 Mode “Disp Measure Mode : SH2(3)” ............................................. 12-10
(5) Sample Hold 3 Mode “Disp Measure Mode : SH3(4)” ............................................. 12-11
(6) Sequence Mode “Force Measure Mode : SQNC(0)” ............................................... 12-12
(7) Sample Hold 1 Mode “Force Measure Mode : SH1(1)” ........................................... 12-16
(8) Tangential Mode “Force Measure Mode : TANG(3)” ............................................... 12-17
13. Data Communication .................................................................................................... 13-1
(1) Data Transmission..................................................................................................... 13-1
(2) Configuration ............................................................................................................. 13-2
(3) Protocol...................................................................................................................... 13-3
14. Specifications ................................................................................................................ 14-1
(1) Basic Specifications................................................................................................... 14-1
(2) Board List for Maintenance........................................................................................ 14-2
15. Outline Drawing............................................................................................................. 15-1
16. Troubleshooting ............................................................................................................ 16-1
17. Calibration...................................................................................................................... 17-1
Index ..........................................................................................................................................1
EU Declaration of Conformity

MU-100A
1. Special Precautions
1-1
These symbols denote
"prohibition". They are
warnings about actions
out of the scope of the
warranty of the product.
These symbols denote
actions which operators
must take.
Each symbol with a
triangle denotes that the
content gives DANGER,
WARNING or CAUTION
to the operator.
1. Special Precautions
(1) Safety Precautions
Before using, read "Safety Precautions" carefully to understand the correct method
of use.
These precautions are shown for safe use of our products and for prevention of
damage or injury to operators or others. Be sure to read each of them, since all
of them are important for safety.
The meaning of the words and symbols is as follows.
Never disassemble, attempt to repair, or modify the Controller.
These actions can cause electric shock and fire. Perform only the
maintenance described in the operation manual.
Never burn, destroy, cut, crush or chemically decompose the Controller.
This product incorporates parts containing gallium arsenide (GaAs).
DANGER
!
Denotes operations and practices
that may imminently result in serious
injury or loss of life if not correctly
fo
llowed.
DANGER
!
Denotes operations and practices
that may result in serious injury or
loss of life if not correctly followed.
WARNING
!
Denotes operations and practices that
may result in personal injury or
damage to the equipment if not
correctl
y
followed.
CAUTION
！
!

MU-100A
1. Special Precautions
1-2
Do not insert your fingers or hands between the electrodes.
When welding, keep your fingers and hands away from the electrodes.
Do not touch any welded part or electrode during welding or just after
completion of welding.
The welded parts of a workpiece, electrodes, and the arm are very hot.
Do not touch them; burns may result.
Ground the equipment.
If the Controller is not grounded, you may receive an electric shock in the
event of malfunction or current leak.
!
Connect the specified cables securely.
Cables of insufficient current capacities and loose connections can cause
fire and electric shock.
Do not damage the power cable and connecting cables.
Do not tread on, twist, or apply force to any cable. Doing so may cause the
power cable and connecting cables to become broken, leading to electric
shock and fire.
Do not use any damaged power cable, connecting cable, or plug.
Failure to observe this precaution can lead to electric shock, short circuit, or
fire.
If any part must be replaced or requires repair, consult us or your distributor.
!
Stop the operation if any trouble occurs.
Continuous operation after occurrence of a trouble such as burning smell,
abnormal sound, abnormal heat, smoke, etc. can cause electric shock and
fire.
If such a trouble occurs, immediately consult us or your distributor.
!
Persons with pacemakers must stay clear of the welding machine.
A person who uses a pacemaker must not approach the welding machine or
walk around the welding site while the welding machine is in operation,
without being permitted by his/her doctor. The welding machine generates a
magnetic field and has effects on the operation of the pacemaker while it is
turned on.
!
Protective gear must be worn.
Put on protective gear such as protective gloves, long-sleeve jacket, leather
apron, etc. Surface flash and expulsion can burn the skin if they touch the
skin.
!
Wear protective glasses.
If you look at the flash directly during welding, your eyes may be damaged.
If any surface flash and expulsion gets in your eye, you may lose your
eyesight.
WARNING
!

MU-100A
1. Special Precautions
1-3
!
Apply the specified supply voltage.
Application of a voltage outside the specified range may result in fire or
electric shock.
Do not allow water to come in contact with the equipment.
Water on the electric parts can cause electric shock and short circuit.
!
Use proper tools (wire strippers, pressure wire connectors, etc.) for
terminal treatment of the connecting cables.
Do not cut the wire conductor; fire or electric shock may result.
!
Install the equipment on a firm and level surface.
Injury may result if the equipment falls or is dropped.
Do not sit on or place objects on the Controller.
Failure to observe this precaution may lead to malfunction.
!
Keep combustible matter away from the Controller.
Surface flash and expulsion may ignite combustible matter. If it is
impossible to remove all combustible matter, cover it with non-combustible
material.
Do not cover the Controller with a blanket, cloth, etc.
Do not cover the Controller with a blanket, cloth, etc. while it is in use. The
cover may be overheated and burned.
Do not use this Controller for purposes other than welding.
Use of this Controller in a manner other than specified can cause electric
shock and fire.
!
Use ear protectors.
Loud noises can damage hearing.
!
Keep a fire extinguisher nearby.
Keep a fire extinguisher in the welding shop in case of fire.
!
Maintain and inspect the Controller periodically.
Maintain and inspect the Controller periodically, and repair any damage
nearby before starting operation.
CAUTION
!

MU-100A
1. Special Precautions
1-4
(2) Precautions for Handling
Do not install the Controller in the following locations:
Damp areas (where the humidity is higher than 90%),
areas where temperatures are above 40°C or below 5°C
areas near a high noise source,
areas where chemicals are handled,
areas where water may condense,
dusty areas,
areas exposed to direct sunlight, and
areas exposed to large amounts of vibration or shock.
Before installing the Controller, check the voltage and power supply frequency.
Also, do not place objects around the power supply connector.
This controller uses the sensor. For stable measurement, turn on the power a
several tens of minutes before using the Controller.
Clean the exterior of the Controller using a soft, dry cloth or one slightly
dampened with water. If the Controller is very dirty, use diluted neutral
detergent or alcohol. Do not use paint thinner, benzine, etc., as they may
discolor or deform the Controller.
Do not insert a screw, coin, etc. into the Controller, as they may cause
malfunction.
Operate the Controller in accordance with the method described in this
operation manual.
Press switches/buttons carefully by hand. Handling them roughly (using a
screwdriver or the tip of pen) may result in a malfunction or failure.
Operate the Controller in accordance with the method and connections
described in this operation manual so as not to affect the protective functions.
(3) On Disposal
This product incorporates parts containing gallium arsenide (GaAs). At the time of
disposal, separate it from general industrial waste or domestic waste and carry out
the disposal in accordance with applicable laws and regulations.

MU-100A
1. Special Precautions
1-5
(4) Model-Specific Function
There are 2 types of models: one has a sensor input for each of force and
displacement, and the other has two sensor inputs for each.
The standard model is MU-100A-00-00, and MU-100A-00-01 is special. For
MU-100A-00-01, contact us.
Model No. Specifications
MU-100A-00-00 1-axis type: Force 1 and Displacement 1.
Incremental type can be connected
MU-100A-00-01 2-axis type: Force 2 and Displacement 2.
Incremental type can be connected
(5) Warning Labels for Safety
On the main body are warning labels for safety.
Their locations and meanings are as noted below.
注意
CAUTION
CONNECT GROUNDING WIRE.
アース線を接続する事
Location: Controller top, back Location: Controller top, back
Meaning: Shock hazard Meaning: Caution for grounding connection
Location: Controller interior, back
Meaning: Shock hazard

MU-100A
2. Features
2-1
2. Features
The Head Controller MU-100A is a controller that moves the welding head up and down
with monitoring the weld force and displacement.
MU-100A offers the following features:
•Measures weld force before/after welding
Measures weld force before welding, and outputs the start signal to the welding
machine with an optional load cell. Also, measures workpiece thickness after welding,
and outputs the judgment signal.
•Measures workpiece thickness before welding, displacement and final
workpiece thickness after welding
Measures workpiece thickness before welding, and outputs the start signal to the
welding machine with an optional displacement sensor. Also, measures displacement
and workpiece thickness after welding, and outputs the judgment signal.
•Controls moving up and down of the welding head
Controls the valve of the welding head by the time.
•Managing measurement data and settings with PC
You can transmit measurement data to your PC through the Ethernet, RS-232C or
RS-485 interface. Also, you can transmit and receive the setting of MU-100A.
•Supports a wide range of welding machines
The instrument supports single-phase AC, DC inverter, AC inverter, and transistor
welding machines.
•Supports the series or indirect head
Supports the series head or indirect head with up to 4 inputs (option) including 2
inputs of weld force and 2 inputs of displacement.
•Supports multiple conditions
Up to 127 schedules can be stored.

MU-100A
3. Packing List
3-1
3. Packing List
Check the contents of the package. In the case of damaged or missing items, please
contact us.
(1) Accessories
The model numbers of accessories are subject to change without notice.
Depending on the part to be changed, the mounting screw shape may change and
a necessary tool may be different. For the latest parts information, contact a
nearest sales office.
Item Name Model No. Q’ty
MU-100A-00-00 MU-100A-00-01
D-Sub connector
Plug HDBB-25P(05) 1 2
Case HDB-CTH(4-40)(10) 1 2
Plug HDCB-37P(05) 1 2
Case HDC-CTH(4-40)(10) 1 2
Operation manual CD-ROM AS1170020 1 1

MU-100A
3. Packing List
3-2
(2) Options
Item Name Model No. Remarks
Power cable
KP-35 KS-16A SVT#18×3 B-TYPE For 100 to 120 V AC
KP244 VCTF3*1.25 KS160 3M gray For 200 V AC
CEE3P-W-1.8 For 200 to 240 V AC
Adapter for power
cable KPR-24(SB)-B For 100 to 120 V AC
RS-232C harness C06N-09FS-09FS-CROSS-WS15 (1.5 m) Cross cable
RS-485 connector L-04742-001
With 100 Ωtermination
resistance
LAN cable KB-FL6E-03BK (3 m) Straight
Load cell *1
LS-20NB (Rating: 20 N)
Type A
LS-50NB (Rating: 50 N)
LS-200NB (Rating: 200 N)
LS-500NB (Rating: 500 N)
LS-2000NB (Rating: 2000 N)
LS-5000NB (Rating: 5000N )
SK-1177178 (Rating: 10000 N) Type B
Load cell
extension cable
HCPβ-C2T (2 m)
For Type A
HCPβ-C3T (3 m)
HCPβ-C4T (4 m)
SK-1177168 (2 m)
For Type B
SK-1177169 (3 m)
SK-1177170 (4 m)
Displacement
sensor
GS-1830A Type C
GS-1813A
LGK-110 (Discontinued)
Type D1
LGF-125L-B (Discontinued)
LGF-150L-B (Discontinued)
LG200-110
Type D2
LG100-125
LG100-150
Displacement
sensor conversion
adapter
MU100A-C0.2O (0.2 m) For Type C
MU100A-C0.2M (0.2 m) For Type D1
SK-1213281 For Type D2
Sensor head GT2-H12
Type E
Sensor head
cable
GT2-CH2M (2 m)
GT2-CH5M (5 m)
Pulse output
amplifier cable *2 SK-1177093 (1.9 m) For Type E
*1 For the load cell with 10000 N, contact us.
*2 Set the DIP switch for amplifier to “3: OFF” and “4: ON”. (Nos. 3 and 4 are for
setting the pulse resolution of displacement sensor.)
34
ON
1256

MU-100A
4. Name and Functions of Each Section
4-1
4. Name and Functions of Each Section
(1) Front
1LCD: Displays the measured values and menus.
2IN/OUT lamps: Displays input/output status of interface.
3SCH key: Sets the schedule.
4ZSET key: Does the zero setting of the sensor and the load cell on the manual
screen. For a load cell, do the zero setting with no pressure applied.
5WELD key: Outputs the WELD START signal. Use when outputting the WELD
START signal during off-sequence periods.
Press WELD and 1 keys in this order to turn ON the WELD START1 output.
To turn it OFF, press WELD and 1 keys again.
Press WELD and 2 keys in this order to turn ON the WELD START2 output.
To turn it OFF, press WELD and 2 keys again. (valid when there is the
second-axis I/O board)
6HEAD key: Outputs the HEAD signal. Use when lowering the welding head
during off-sequence periods.
Press HEAD , 1 and 1 keys in this order to turn ON the SV11 output. To
turn it OFF, press HEAD , 1 and 1 keys again.
Press HEAD , 1 and 2 keys in this order to turn ON the SV12 output. To
turn it OFF, press HEAD , 1 and 2 keys again.
Press HEAD , 1 and 3 keys in this order to turn ON the SV13 output. To
turn it OFF, press HEAD , 1 and 3 keys again.
Press HEAD , 2 and 1 keys in this order to turn ON the SV21 output. To
turn it OFF, press HEAD , 2 and 1 keys again. (valid when there is the
second-axis I/O board)
Press HEAD , 2 and 2 keys in this order to turn ON the SV22 output. To
turn it OFF, press HEAD , 2 and 2 keys again. (valid when there is the
second-axis I/O board)
Press HEAD , 2 and 3 keys in this order to turn ON the SV23 output. To
turn it OFF, press HEAD , 2 and 3 keys again. (valid when there is the
second-axis I/O board)
1
2
8
○
12 4 5 6 7
9

○
13 ○ 11 9
3

MU-100A
4. Name and Functions of Each Section
4-2
7RES key: Resets the error.
8FUN key: Sets the parameters.
9Direction key: Moves the cursor from right to left or up and down.
ENT key: Establishes the setting.
○
11 Numerical keypad: Sets a number.
○
12 Sign key: Sets a sign.
○
13 MONI key: Displays the normal screen.

MU-100A
4. Name and Functions of Each Section
4-3
(2) Rear
1-axis type
2-axis type
1SENSOR1 connector: Connects the displacement sensor 1. When connecting the
displacement sensor, use the dedicated adapter or extension
cable.
2SENSOR2 connector: Connects the load cell 1. When connecting the load cell, use
the dedicated extension cable or connector.
3INPUT1 connector: Connects the input signals of SENSOR1 and 2.
4OUTPUT1 connector: Connects the output signals of SENSOR1 and 2.
5POWER switch: Main power switch.
6AC inlet: Connects the power cable.
7ETHERNET connector: Connects the Ethernet.
1 2 4
3
5
6
8 97
○
11
○
12
○
13

MU-100A
4. Name and Functions of Each Section
4-4
8RS232C/485 connector: Connects the RS-232C/RS-485.
9RS485 connector: Connects the RS-485.
SENSOR3 connector: Connects the displacement sensor 2. When connecting the
displacement sensor, use the dedicated adapter or extension
cable.
○
11 SENSOR4 connector: Connects the load cell 2. When connecting the load cell, use
the dedicated extension cable or connector.
○
12 INPUT2 connector: Connects the input signals of SENSOR3 and 4.
○
13 OUTPUT2 connector: Connects the output signals of SENSOR3 and 4.

MU-100A
5. Connection
5-1
5. Connection
Example connection
E04SR200935A E04SR200935A
* To connect the displacement sensor or the load cell to the welding head and the
follow-up mechanisms, refer to the documentation of the welding head and the
follow-up mechanisms or contact us.
* For adjustment of the displacement sensor or the load cell in the welding head or
follow-up mechanisms, refer to the documentation of the welding head and the
follow-up mechanisms or contact us.
Example wiring 1: Connecting both displacement sensor and load cell
Set Disp Measure Mode to SYNC(0).
WELD START1
18
17
COM
2NDST-DISP1
10 LS1
14
22 EXT.COM
23
24
25
EXT.COM
EXT.24V
INCOM
1
2
3
4
5
+24V
LS
COM
SV+
SV-
13
Foot Switch
ZH
INPUT
ISB-800A
STOP
COM
13
15
WE1 STOP
INPUT
MU-100A(SYNC mode)
8
OUTCOM
27
28
34
35
36OUTCOM
37
SV11
15 LEV-DISP11
OUTCOM
OUTCOM
SVCOM
OUTPUT
Welding
machine
Welding
head
Se
q
uence
r
PC
Sequencer
Load cell extension cable (option)
Power cable
(option)
Load cell (option)
Displacement sensor (option)
Output connector
(attached)
Input connector
(attached)
Displacement sensor
conversion adapter (option)
RS-232C harness
(option)

MU-100A
5. Connection
5-2
Example wiring 2: Connecting displacement sensor only
Set Disp Measure Mode to SQNC(1).
WELD START1
18
17
COM
2NDST-DISP1
10 LS1
14
22 EXT.COM
23
24
25
EXT.COM
EXT.24V
INCOM
1
2
3
4
5
+24V
LS
COM
SV+
SV-
13
Foot Switch
ZH
INPUT
ISB-800A
STOP
COM
13
15
WE1 STOP
INPUT
8
OUTCOM
27
28
34
35
36OUTCOM
37
SV11
15 LEV-DISP11
OUTCOM
OUTCOM
SVCOM
OUTPUT
MU-100A(SQNC mode)
Example wiring 3: Connecting load cell only
Set Disp Measure Mode to SQNC(1) and Force Measure Mode to SQNC(0).
WELD START1
18
17
COM
2ND
10 LS1
14
22 EXT.COM
23
24
25
EXT.COM
EXT.24V
INCOM
1
2
3
4
5
+24V
LS
COM
SV+
SV-
13
Foot Switch
ZH
INPUT
ISB-800A
STOP
INPUT OUTPUT
MU-100A(SQNC mode)
9 ST-FORCE1
OUTCOM
27
28
34
35
36OUTCOM
37
SV11
OUTCOM
OUTCOM
SVCOM
Example wiring 4: Connecting to a head having two force follow-up units such as
series and indirect
LS2
SV21
WELD START1
WELD START2
ST-DISP2
OUTPUT2
INPUT2
OUTPUT1
INPUT1
10
22 EXT.COM
23
24
25
EXT.COM
EXT.24V
INCOM
1
2
3
4
5
+24V
LS
COM
SV+
SV-
OUTCOM
13
27
28
34
35
36OUTCOM
37
ZH
18
17
COM
2NDST-DISP1
10 LS1
14
22 EXT.COM
23
24
25
EXT.COM
EXT.24V
INCOM
1
2
3
4
5
+24V
LS
COM
SV+
SV-
13
27
28
34
35
36
OUTCOM
37
MU-100A(SQNC mode)
Foot Switch
ZH
SV11
INPUT
ISB-800A
STOP
8
8
OUTCOM
OUTCOM
OUTCOM
SVCOM
OUTCOM
OUTCOM
SVCOM
* When connecting to other welding power supply or welding head, contact us.

MU-100A
6. Interface
6-1
6. Interface
(1) INPUT and OUTPUT Connectors
a. INPUT1 connector: KF22X-B25S-NJM(KYCON)
* For SENSOR1 and 2
* Use the shielded cable for the input cable and connect the shielded part to the ground.
No Symbol Contents
1 SCH1-1
2 SCH1-2
3 SCH1-4
4 SCH1-8
5 SCH1-16
6 SCH1-32
7 SCH1-64
The schedule switching signal for SENSOR1 and 2.
Binary input.
Up to 127 schedules can be switched.
8 ST-DISP1
The start signal when the Disp Measure Mode for SENSOR1 is set to
SYNC, SQNC, or SH1,2,3. When it is set to SYNC, the start signal becomes
common to SENSOR1 and 2.
9 ST-FORCE1
The start signal when the Force Measure Mode for SENSOR2 is set to
SQNC, SH1 or TANG. Do not use when the Disp Measure Mode is set to
SYNC.
10 LS1 Inputs the force-detecting signal for SENSOR1 and 2.
11 RESET-NG Cancels the buzzer at the occurrence of error to return to the READY state.
When the Output Select Time is set to TACT(0), the NG output is not reset.
12 RESET-CONT1
Resets the counter value of the specified schedule.
Note) The count start value set in 23 Counter in the schedule setting is
reset to 00000. (See 9. Schedule Setting.)
13 FINISH1 When input during Weld-Time or Hold-Time for SENSOR1 and 2, the
sequence operation ends.
14 STOP Stop signal.
15 HEAD1
When input, SV11, SV12, SV13 outputs are turned ON.
Note) For checking the operation of the welding head alone. Do not use in a
normal sequence.
16 ZST-DISP1 The zero-setting input for the displacement sensor for SENSOR1.
17 INPUT11
18 INPUT12
19 INPUT13
20 INPUT14
21 INPUT15
Spare input signals.
22 EXT.COM
23 EXT.COM
Common of internal circuit.
24 EXT.24V +24V output for the input signals when using internal power supply.
25 INCOM 0V common for the input signals when using internal power supply.

MU-100A
6. Interface
6-2
b. INPUT2 connector: KF22X-B25S-NJM(KYCON)
* For SENSOR3 and 4 (option)
* Use the shielded cable for the input cable and connect the shielded part to the ground.
No Symbol Contents
1 SCH2-1
2 SCH2-2
3 SCH2-4
4 SCH2-8
5 SCH2-16
6 SCH2-32
7 SCH2-64
The schedule switching signal for SENSOR3 and 4.
Binary input.
Up to 127 schedules can be switched.
8 ST-DISP2
The start signal when the Disp Measure Mode for SENSOR3 is set to
SYNC, SQNC, or SH1,2,3. When it is set to SYNC, the start signal
becomes common to SENSOR3 and 4
9 ST-FORCE2
The start signal when the Force Measure Mode for SENSOR4 is set to
SQNC, SH1, or TANG. Do not use when the Disp Measure Mode is set to
SYNC.
10 LS2 Inputs the force-detecting signal for SENSOR3 and 4.
11 INPUT26 Spare input signal.
12 RESET-CONT2
Resets the counter value of the specified schedule.
Note) The count start value set in 23 Counter in the schedule setting is
reset to 00000. (See 9. Schedule Setting.)
13 FINISH2 When input during Weld-Time or Hold-Time for SENSOR3 and 4, the
sequence operation ends.
14 INPUT27 Spare input signal.
15 HEAD2
When input, SV21, SV22, SV23 outputs are turned ON.
Note) For checking the operation of the welding head alone. Do not use in
a normal sequence.
16 ZST-DISP2 The zero-setting input for the displacement sensor for SENSOR3.
17 INPUT21
18 INPUT22
19 INPUT23
20 INPUT24
21 INPUT25
Spare input signals.
22 EXT.COM
23 EXT.COM
Common of internal circuit.
24 EXT.24V +24V output for the input signals when using internal power supply.
25 INCOM 0V common for the input signals when using internal power supply.

MU-100A
6. Interface
6-3
c. OUTPUT1 connector: KF22X-B37S-NJM(KYCON)
* For SENSOR1 and 2
* Use the shielded cable for the output cable and connect the shielded part to the ground.
No Symbol Contents
1 READY1 Device normal signal. Turned OFF while the setting screen is displayed.
2 GOOD-DISP1
The GOOD signal of displacement sensor when the Disp Measure Mode for
SENSOR1 and 2 is set to SYNC, SQNC, or SH1,2,3. When it is set to SYNC,
this is the GOOD signal common to the displacement sensor and the load
cell.
3 GOOD-FORCE1
The GOOD signal of load cell when the Force Measure Mode for SENSOR2
is set to SQNC, SH1/2, or TANG. Do not use when the Disp Measure Mode is
set to SYNC.
4 NG1 Output when the measured value for SENSOR1 and 2 is outside the
upper/lower limit.
5 NG-UP1 Output when the measured value of the displacement sensor for SENSOR3
exceeds the upper limit.
6 NG-LO1 Output when the measured value of the displacement sensor for SENSOR3
falls below the lower limit.
7 NG-BEFORE1 Output when the before-welding workpiece thickness for SENSOR3 is NG.
8 NG-DISP1 Output when the displacement for SENSOR3 is NG.
9 NG-AFTER1 Output when the after-welding workpiece thickness for SENSOR3 is NG.
10 NG-FORCEUP1 Output when the measured value of the load cell for SENSOR4 exceeds the
upper limit.
11 NG-FORCELO1 Output when the measured value of the load cell for SENSOR4 falls below
the lower limit.
12 WARNING Output when an ERROR occurs. (See 16. Troubleshooting.)
13 WELD START1 The start signal for welding power supply for SENSOR1 and 2.
Output for the time set in Weld-Time.
14 FINISH1 Output when the sequence operation for SENSOR1 and 2 ends.
15 LEV-DISP11
16 LEV-DISP12
17 LEV-DISP13
Output when the present value of the displacement sensor for SENSOR1
passes the setting.
18 LEV-FORCE11
19 LEV-FORCE12
20 LEV-FORCE13
Output when the present value of the load cell for SENSOR2 passes the
setting.
21 OUTPUT11
22 OUTPUT12
23 OUTPUT13
24 OUTPUT14
25 OUTPUT15
26 OUTPUT16
Spare output signals.
27 SVCOM1 Common for the solenoid valve control signal for SENSOR1 and 2.
28 SV11 The solenoid valve control signal for SENSOR1 and 2.
29 SV12
30 SV13
Spare solenoid valve control signal.
31 V-SIG11 Converts the present value of the displacement sensor for SENSOR1 to
voltage to output it. *1
32 V-SIG12 Converts the present value of the load cell for SENSOR2 to voltage to output
it. *2
33 V-SIGCOM1 Common for voltage output for SENSOR1 and 2.
34 OUTCOM
35 OUTCOM
36 OUTCOM
37 OUTCOM
Common for output signals for SENSOR1 and 2.