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4 POSITIONING DEDICATED SIGNALS
(2) Rapid stop command (M4801+20n) .......................Command signal
(a) This command stops a starting axis rapidly from an external source and
becomes effective at leading edge of signal. (An axis for which the rapid
stop command is turning on cannot be started.)
Rapid stop
command
(M4801+20n)
Setting speed
OFF
ON
V
Rapid stop command
for specified axis
Control during rapid
stop command OFF
Stop
t
Rapid stop processing
(b) The details of stop processing when the rapid stop command turns on are
shown in Table 4.2.
Table 4.2 Details of stop processing when the rapid stop command turns on
Processing at the turning rapid stop command on
Control details
during execution
During control
During deceleration stop processing
Positioning
control
Speed control
JOG operation
Rapid stop processing is executed.
Parameter (Speed limit value)
Stop cause
Operation speed
Real deceleration time
Rapid stop deceleration time
of the parameter block
Stop
Deceleration processing is stopped and rapid
stop processing is executed.
Setting speed
Deceleration stop processing
Rapid stop cause
Rapid stop deceleration
processing
Stop
(c) The rapid stop command in a dwell time is invalid. (After a dwell time, the
start accept flag (M2001+n) turns OFF, and the positioning complete signal
(M4001+20n) turns ON.)
REMARK
(Note-1) : Rapid stop processing is deceleration stop with deceleration time set in
the parameter block or servo program.
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