Mitsubishi Electric Melsec-F FX3GC Series User Manual page 268

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Example Connection
*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. For details on the MR-J2(S) servo amplifier, such as the tolerance for the internal power and operation of the servo
amplifier, refer to the following manual.
*5. To detect absolute positions, connect this line to the PLC.
*6. Set the pulse output method using the pulse output method setting switch.
Pulse output method setting switch
*7. Input extension blocks are used in the connection example.
Inputs built into the main unit are available in place of extension blocks.
Appendix 4-3 Absolute Position Detection (Transistor Output)
To assign the inputs/outputs, refer to the following section.
Appendix 4-3-1 Sink Input and Sink Output
1. FX PLC
3S
FX -30MT/ES
3S
Photo-coupler
Be sure to use the class-D grounding method (grounding resistance: 100  or less).
*1.
*2. For details on the internal power supply of MR-J2(S) servo amplifier, refer to the following manual.
Apx. - 38
PLC User's Manual - Positioning Control Edition
Reverse rotation limit 1
(Programmable
controller side)
LSR
Reverse rotation
FP RP side

PLS DIR side

100 to 240 V AC
L
N
Class-D
grounding *1
S/S
0V
24V
X000
ABS (bit0)
X014
ABS (bit1)
X015
Send data ready
X016
X017
COM3
Servo-ON
Y006
ABS transfer mode
Y007
ABS request
Y010
Y011
Appendix 4. MELSERVO-J2 (-Super) Series
Appendix 4-3 Absolute Position Detection (Transistor Output)
Forward rotation limit 1
(Programmable
controller side)
LSF
Forward rotation
For details, refer to the servo amplifier manual.
Pulse output method
Forward/reverse pulse train
Pulse train + direction
Refer to Section 12.1 of "B. Built-in Positioning"
MR-J2(S)A
Series servo
CN1B
amplifier
SG 10
COM 13
VDD 3
*2
ABSB0 D01 22 4
ABSB123
ZSP 19
ABST 25
TLC 6
SON 5
ABSM 8
ABSR 9
SD
Plate
For details, refer to the servo amplifier manual.
Forward rotation limit 2
(Servo amplifier side)