D-186
Programming
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Functional Description
The time needed to stop or accelerate is:
As the speed is symmetrical, the average speed is V/2 therefore the stopping / acceleration distance can be calculated:
V
is the maximum speed the drive must reach in % / sec.
A
is the maximum allowable acceleration in %/sec
2
.
J
is the maximum allowable value for jerk, in %/sec
3
Note: These only hold true if Jerk = Jerk2 for acceleration or Jerk 3 = Jerk 4 for deceleration.
-30
0
1
20
30
40
50
60
Time (secs)
%
Jerk 3
Jerk 4
Jerk 2
Jerk
Acceleration
Deceleration
(seconds)
J
A
A
V
t
(meters)
J
A
A
V
2
V
s
+
=
+
=
