12 - 80
MELSEC-A
12 CONTROL AUXILIARY FUNCTIONS
(b) S-curve acceleration/deceleration processing method
In this method, the motor burden is reduced during starting and stopping.
This is a method in which acceleration/deceleration is carried out gradually,
based on the acceleration time, deceleration time, speed limit value, and
"
Pr.36 S-curve ratio" (1 to 100%) set by the user.
Velocity
Time
Fig. 12.40 S-curve acceleration/deceleration processing method
When a speed change request is given during S-curve
acceleration/deceleration processing, S-curve acceleration/deceleration
processing begins at a speed change request start.
When speed change
request is not given
Speed change (acceleration)
Command speed before speed change
Speed change request
Speed change (deceleration)
Fig. 12.41 Speed change during S-curve acceleration/deceleration processing
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Содержание A1SD75P1-S3
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