Mitsubishi Electric MELSEC iQ-FX5 User Manual page 29

Order of priority for stop process
The order of priority for the Simple Motion module stop process is as follows.
(Deceleration stop) < (Rapid stop) < (Immediate stop)
• If the deceleration stop command ON (stop signal ON) or deceleration stop cause occurs during deceleration to speed 0
(including automatic deceleration), operation changes depending on the setting of "[Cd.42] Stop command processing for
deceleration stop selection". (Page 256 Stop command processing for deceleration stop function)
Positioning control Setting value of [Cd.42]
during deceleration

Manual control
Home position return control, 0: Deceleration curve re-
positioning control
1: Deceleration curve
• If the stop signal designated for rapid stop turns ON or a stop cause occurs during deceleration, the rapid stop process will
start from that point. However, if the rapid stop deceleration time is longer than the deceleration time, the deceleration stop
process will be continued even if a rapid stop cause occurs during the deceleration stop process.
Example
The process when a rapid stop cause occurs during deceleration stop is shown below.
Positioning speed
Rapid stop deceleration process
(a) When deceleration stop time >
rapid stop deceleration time
Inputting the stop signal during deceleration
• Even if stop is input during deceleration (including automatic deceleration), the operation will stop at that deceleration
speed.
• If stop is input during deceleration for home position return, the operation will stop at that deceleration speed. If input at the
creep speed, the operation will stop immediately.
• If a stop cause, designated for rapid stop, occurs during deceleration, the rapid stop process will start from that point. The
rapid stop process during deceleration is carried out only when the rapid stop time is shorter than the deceleration stop
time.
Processing details
Independently of the [Cd.42] setting, a deceleration curve is re-processed from the speed at
stop cause occurrence.
A deceleration curve is re-processed from the speed at stop cause occurrence. (Page 256
processing Deceleration curve re-processing)
The current deceleration curve is continued after stop cause occurrence. (Page 256
continuation Deceleration curve continuation)
Deceleration stop
Positioning speed
process
Rapid stop cause
Stop
Deceleration stop process continues
(b) When deceleration stop time <
Deceleration stop
process
Rapid stop cause
Stop
Process for rapid stop
rapid stop deceleration time
1 START AND STOP
27
1.2 Stop
1