Omron CJ1W-C113 - REV 02-2008, Operation Manual

Page: 381 / 406

354
Estimating Times and Pulses for Acceleration/Deceleration Appendix B
Using the above abbreviations, the number of pulses for the acceleration and deceleration time can be calcu-
lated as follows:
Example
In this example, numeric settings are entered for the operation pattern shown below.
Maximum speed setting: V
M
= 35,000 pps
Acceleration time setting: T
AU
= 400 ms
Deceleration time setting: T
AD
= 550 ms
T
U
=
(V
H
– V
L
)
T
D
=
Acceleration pulses (P
U
) =
(V
H
+ V
L
) x T
U
2
(V
H
+ V
L
) (V
H
– V
L
) =
T
AU
2 x (V
M
– V
L
)
(V
H
+ V
L
) x T
D
2
(V
H
+ V
L
) (V
H
– V
L
) =
T
AD
2 x (V
M
– V
L
)
Deceleration pulses (P
D
) =
(V
M
– V
L
)
T
AU
(V
H
– V
L
)
(V
M
– V
L
)
T
AD
Acceleration time (T
U
) =
35000 – 5000
Acceleration pulses (P
U
) =
(V
H
+ V
L
) x T
U
2
= 5827 (pulses) =
(30000 + 5000) x 333 x 10
–3
2
x 400 x
5
6
x 10
–3
= 333 (ms)
Approx. 5800 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 – 5000
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