IAI PCON-CB series - Ladder Sequence

9. Appendix
9.3 Example of Basic Positioning Sequence (PIO pattern 0 to 3)
9-22 ME0342-4B
9.3.2 Ladder Sequence
[1] Servo ON (Emergency Stop) Circuit
1) It is presumed that the emergency stop release circuit installed in the operation box
possesses the self-retaining circuit as shown in “3.1.3 [1] Emergency Stop Circuit”. When it
comes to the emergency stop release condition, servo ON signal SON from PLC to PCON
turns ON.
2) Then if the emergency stop release state continues, the operation ready complete signal
(sent from PCON to PLC) is turned on to go on the emergency stop release lamp, which
indicates that the actuator can be operated.
[2] Operation and Stop Circuit