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CHAPTER 12 STOPPING AND RESTARTING CONTROL
12
12.1 Stopping Control
An emergency stop circuit should be built outside the programmable controller.
(2) Stop during OPR
If an error (a cause of a stop) occurs during OPR, a deceleration stop starts at the error occurrence.
At the completion of the deceleration stop, OPR request signal (X12) stays on. Also, OPR complete signal (X13)
does not turn on since the OPR was not completed normally.
The following figure is the timing chart of when Stop signal (Y27) is turned on during OPR.
OFF
ON
ON
ON
t
v
OFF
OFF
ON
Zero signal
OFF
OFF
Deceleration start
OFF
ON
0
OPR start signal
(Y20)
BUSY signal
(X14)
OPR request signal
(X12)
OPR complete signal
(X13)
Stop signal
(Y27)
Error detection signal
(X18)
Error code (ERR.1)
Md.3
102 (STOP signal ON during OPR)
Near-point dog
Executed by the QD73A1