251
Appendix B
Estimating Times and Pulses for
Acceleration/Deceleration
The acceleration time is the time it takes to reach the maximum speed from a speed of the initial speed. The decel-
eration time is the time from the maximum speed to the initial speed. Accordingly, the time it takes to reach the
target speed, the time from the target speed to the initial speed, as well as the number of pulses for each of them,
can all be found by means of the formulas shown below.
Speed (pps)
Time (ms)
P
D
P
U
V
M
V
H
V
L
0
T
U
T
D
T
AU
T
AD
V
M
:
Maximum speed setting
T
U
:
Acceleration time from initial speed (V
L
) to target speed (V
H
)
T
D
:
Deceleration time from target speed (V
H
) to initial speed (V
L
)
T
AU
:
Acceleration time setting
T
AD
:
Deceleration time setting
Using the above abbreviations, the number of pulses for the acceleration and deceleration time can be calculated
as follows:
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
Summary of Contents for C200HW
Page 1: ...Cat No W334 E1 04 Position Control Units SYSMAC C200HW NC113 NC213 NC413 ...
Page 2: ...C200HW NC113 NC213 NC413 Position Control Units Operation Manual Revised July 2003 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 285: ...Cat No W334 E1 04 C200HW NC113 NC213 NC413 Position Control Units OPERATION MANUAL ...
