Advertisement
6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
(3) Order of priority for stop process
The order of priority for the D75P2 stop process is as follows.
Deceleration stop < Sudden stop < Immediate stop
(1) During deceleration (including automatic deceleration), the operation will stop
at that deceleration speed even if the decelerations to command turns ON
(stop signal ON) or a deceleration stop cause occurs.
(2) If the stop signal designated for sudden stop turns ON or a stop cause occurs
during deceleration, the sudden stop process will start from that point.
However, if the sudden stop deceleration time is longer than the deceleration
time, the deceleration stop process will be continued even if a sudden stop
cause occurs during the deceleration stop process.
Example
The process when a sudden stop cause occurs during deceleration stop is shown below.
Positioning speed
Sudden stop deceleration process
Positioning speed
Deceleration
stop process
Sudden
stop cause
Stop
Deceleration stop process continues
6 - 66
MELSEC-A
Deceleration
stop process
Sudden
stop cause
Stop
Process for sudden stop
Advertisement
Chapters
Troubleshooting
