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3UC
PLC User's Manual - Positioning Control Edition
Example Connection
Appendix 2. MELSERVO-J2 (-Super) Series
Appendix 2-1 Main Unit (Transistor Output)
Apx. - 11
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
2. FX3UC PLC
*1. Be sure to use the class-D grounding method (grounding resistance: 100
Ω
or less).
*2. Near-point signal (DOG)
*3. To ensure safety, use the forward rotation limit switch and the reverse rotation limit switch on both sides: the PLC side and
the servo amplifier side. Note that the limit switches on the PLC side should be activated slightly earlier than the limit
switches on the servo amplifier side.
*4. To detect absolute positions, connect this line to the PLC.
LG
OP
SG
PP
CR
NP
SD
CN1A
SON
RES
EMG
5
14
15
LSP16
LSN17
CN1B
SG20
DO1
ZSP
TLC
4
19
6
SG10
SON5
ABSM
ABSR
8
9
CN1B
SG
COM
10
13
CN1B
ZSP19
TLC6
ALM18
COM
OPC
INP
RD
Plate
1
14
10
3
8
2
9
11
18
19
CN1A
FX
2NC
-16EX
FX
2NC
-16EYT
Refer to Appendix
2.3.1-2.
24V DC
COM
X020
FX
2NC
-16EX
X021
X022
X023
X024
X026
X027
X037
X025
X030
COM1
FX
2NC
-16EYT
Y020
Y027
COM1
DOG
*2
COM
X004
X017
FX
3UC
-32MT/D
X010
X014
X000
COM1
COM1
Y000
Y017
Y004
Photo-
coupler
Photo-
coupler
Class-D
grounding
*1
Zero Point
signal(PG0)
Servo ready
(RD)
Pulse train
CLEAR signal
Positioning
completed(INP)
Zero speed
*4
Torque being controlled
*4
Servo error(ALM)
MR-J2(S)
A
Series servo
amplifier
*4
Connected to the
FX
3UC
if ABS the
instruction(FNC
155) is used.
Servo ON
*4
Reset
Emergency stop
Forward rotation limit 2
*3
Reverse rotation limit 2
*3
Immediate stop command
Zero return command
JOG(+)command
JOG(-)command
Forward rotation positioning command
Forward rotation limit (LSF)
*3
Reverse rotation limit (LSR)
*3
Reverse rotation positioning command
Stop command
Direction
Reverse rotation limit 2
(Servo amplifier side)
Reverse rotation limit 1
(Programmable
controller side)
LSR
Forward rotation limit 2
(Servo amplifier side)
Forward rotation limit 1
(Programmable
controller side)
LSF
Reverse rotation Forward rotation
Servo motor