Appendix B
Estimating Times and Pulses for Acceleration/Deceleration
320
Example
In this example, numeric settings are entered for the operation pattern shown below.
Speed (pps)
Time (ms)
T
D
T
U
T
AU
T
AD
P
D
P
U
35000
30000
5000
Maximum speed setting:
V
M
= 35,000 pps
Acceleration time setting:
T
AU
= 400 ms
Deceleration time setting:
T
AD
= 550 ms
Acceleration time (T
U
) =
35000 -- 0
Acceleration pulses (P
U
) =
(V
H
+ V
L
) x T
U
2
= 5160 (pulses)
=
(30000 + 0) x 344 x 10
--3
2
x 400 x
6
7
x 10
--3
= 344 (ms)
Approx. 5200 pulses
(V
H
+ V
L
) x T
D
2
= 8015 (pulses)
=
(30000 + 5000) x 458 x 10
--3
2
Approx. 8000 pulses
Deceleration time (T
D
) =
Deceleration pulses (P
D
) =
V
H
-- V
L
V
M
-- V
L
T
AU
=
30000 -- 0
10
--3
=
x 400
35000 -- 5000
x 550 x
5
6
x 10
--3
= 458 (ms)
V
H
-- V
L
V
M
-- V
L
T
AD
=
30000 -- 5000
10
--3
=
x 550
Summary of Contents for CS1W-NC113 - REV 02-2008
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