1 OUTLINE OF ADVANCED SYNCHRONOUS CONTROL
1.3 Operation Method of Synchronous Control
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1
Deceleration stop
The output axis decelerates to a stop according to the setting in "[Pr.37] Stop group 1 rapid stop selection" to "[Pr.39] Stop
group 3 rapid stop selection". The deceleration time is set in "[Pr.446] Synchronous control deceleration time", and rapid stop
deceleration time is set in either "[Pr.36] Rapid stop deceleration time" or "[Pr.446] Synchronous control deceleration time",
whichever is shorter. The slope of deceleration is as follows.
When the deceleration stop starts, the cam axis position value per cycle is not updated, and only the command position value
is updated. Therefore, the path of the command position value is drawn regardless the cam operation with deceleration stop.
The input axis must be stopped when the output axis is decelerated to stop synchronizing with the input axis.
Slope at deceleration =
Deceleration time (Rapid stop deceleration time)
"[Pr.8] Speed limit value"
[Md.20] Command position
value
(Cam operation)
[Md.407] Cam axis
position value
per cycle
[Cd.380] Synchronous
control start
(Target axis bit)
Axis stop signal
[Md.22] Speed command
BUSY signal
Deceleration stop
t
t
t
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