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
9.3 Example of Basic Positioning Sequence (PIO pattern 0 to 3)
ME0342-4B 9-23
[3] Pause Circuit
Pause is provided by a single pushbutton. In a similar way as use of an alternate switch, push
the button to make the actuator pause and push it again to release the pause of the actuator.
Pushing the pushbutton leads the “pause command and pause lamp ON” state and pushing the
pushbutton again brings “pause release command and pause lamp OFF”.
To Next Page
Loading...
Need help?
General
