3. POSITIONING SIGNAL
3
−
14
(2) Rapid stop command (M1801+20n)
(a) The rapid stop command is a signal used to rapidly stop an axis that is
currently being driven and becomes effective at its leading edge
(OFF
→
ON). (An axis for which the rapid stop command is ON cannot be
started.)
V
t
OFF
ON
Rapid stop
command
(M1801
+
20n)
Rapid stop command
for designated axis
Control when
rapid stop
command is
OFF
Rapid stop processing
Stop
Set speed
(b) The details of stop processing when the rapid stop command comes ON
are presented in the table below.
Processing when the Rapid Stop Command Comes ON
Control Being
Executed
If Control is Being Executed
If Deceleration Stop Processing is
Being Executed
Position control
Speed control (I, II)
JOG operation
The axis decelerates to a stop in the
deceleration time set in the parameter
block or servo program.
Deceleration processing is canceled
and rapid stop processing executed
instead.
Manual pulse
generator operation
An immediate stop is executed, with
no deceleration processing.
Zeroing
(1) The axis decelerates to a stop in the rapid stop deceleration time set in
the parameter block.
(2) A "stop during zeroing" error occurs and the error code (203) is stored in
the minor error storage area for each axis.
POINT
If a stop is executed by turning ON the rapid stop command (M1801+20n)
during a zeroing operation, re-execute the zeroing operation. If the rapid stop
command came ON after the proximity dog came ON in the zeroing
operation, first retract to a position before the point where the proximity dog
comes ON using JOG operation or positioning, and then execute the zeroing
operation again.
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