Mitsubishi Electric MELSEC-L LD75D, User Manual

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CHAPTER 6 PROGRAM USED FOR POSITIONING CONTROL
6
6.
5 Pr
ogram Det
a
ils
(2) Types of stop processes
The operation can be stopped with deceleration stop, sudden stop or immediate stop.
(a) Deceleration stop
The operation stops with "deceleration time 0 to 3" ([Pr.10], [Pr.28], [Pr.29], [Pr.30]).
Which time from "deceleration time 0 to 3" to use for control is set in positioning data ([Da.4]).
(b) Sudden stop
The operation stops with "[Pr.36] Sudden stop deceleration time".
(c) Immediate stop
The operation does not decelerate.
The LD75 immediately stops the pulse output, but the operation will coast for the droop pulses accumulated in
the drive unit's deviation counter.
Remark
"Deceleration stop" and "sudden stop" are selected with the details parameter 2 "stop group 1 to 3 sudden stop selection".
(The default setting is "deceleration stop".)
(a) Deceleration stop (b) Sudden stop (c) Immediate stop
Actual deceleration time
Set deceleration time
Positioning speed
Stop
cause
Stop
Speed limit value Pr.8
Positioning speed
Sudden stop
cause
Stop
Speed limit value
Pr.8
Actual sudden stop
deceleration time
deceleration time
Pr. 36 Sudden stop
Coast for the droop pulses accumulated
in the drive unit's deviation counter.
Positioning speed
Stop
cause
Stop