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.
To detect absolute positions, connect this line to the PLC.
*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.
Set the command pulse input form of the servo amplifier (PA13) MR-J4A to "0211" (negative logic, command input pulse
train filter: 500 kpps or less).
Apx. - 4
PLC User's Manual - Positioning Control Edition
Reverse rotation limit 1
(Programmable
controller side)
LSR
Reverse rotation
Appendix 1. MELSERVO-J4 Series
Appendix 1-1 Main Unit (Transistor Output)
Forward rotation limit 1
Forward rotation limit 2
(Programmable
(Servo amplifier side)
controller side)
LSF
Forward rotation