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PLC User's Manual - Positioning Control Edition
Example Connection
Appendix 4. MELSERVO-C Series
Appendix 4-1 Main Unit (Transistor Output)
Apx. - 18
*1. Be sure to use the class-D grounding method (grounding resistance: 100
Ω
or less).
*2. Near-point signal (DOG)
*3. Set the servo amplifier parameter No.21 to "020".
*4. 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)
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