Mitsubishi Electric Melsec-F FX3GC Series User Manual page 272

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Example Connection
Be sure to use the class-D grounding method (grounding resistance: 100  or less).
*1.
*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.
Reverse rotation limit 2
(Servo amplifier side)
Servo motor
*4. To detect absolute positions, connect this line to the PLC.
*5. Extension blocks are used in the connection example.
Inputs and outputs built into the main unit are available in place of extension blocks.
Appendix 5-2 Absolute Position Detection (Transistor Output)
To assign the inputs/outputs, refer to the following section.
Appendix 5-2-1 Sink Input and Sink Output
1. FX PLC
3UC
FX -32MT/D
3UC
Photo-
coupler
FX -16EYT *2
2NC
FX -16EX *2
2NC
Photo-
coupler
Be sure to use the class-D grounding method (grounding resistance: 100  or less).
*1.
*2. Extension blocks are used in the connection example.
Inputs and outputs built into the main unit are available in place of extension blocks.
Apx. - 42
PLC User's Manual - Positioning Control Edition
Reverse rotation limit 1
(Programmable
controller side)
LSR
Reverse rotation
Class-D
grounding
COM
X000
COM1
COM1
Y020
Servo-ON
Y021
ABS transfer mode
Y022
ABS request
Y023
Y027
COM
X020
ABS (bit0)
X031
ABS (bit1)
X032
Send data ready
X033
X037
Appendix 5-2 Absolute Position Detection (Transistor Output)
Forward rotation limit 1
(Programmable
controller side)
LSF
Forward rotation
Refer to Section 12.1 of "B. Incorporated Positioning"
MR-HA
Series servo
amplifier
CN1
VIN 20
24 V DC
SG 40
*1
SG 16
SON 12
DI3 44
DI4 45
PF 24
ZSP 23
TLC 25
SD 50
Appendix 5. MELSERVO-H Series
Forward rotation limit 2
(Servo amplifier side)