7-6
Section
Acceleration/Deceleration
167
tion time Td specified at the time operation started from the stopped position. It is
not necessary to specify new acceleration and deceleration times.
Speed
Speed V
2
Speed V
1
Initial speed V
0
Actual
acceleration
time T
1
Actual
acceleration
time T
2
Actual
deceleration
time T
3
Time
First positioning operation
Next positioning operation
Case 2: Speed for the Next Positioning Operation is Slower
In this case (V
1
>
V
2
), the calculations will be the same as before except for T
2
,
which is determined according to the following equation.
Actual acceleration time T
2
= (V
1
-- V
2
)/(V
MAX
-- V
0
)
×
Td
7-6-3 Calculation of Acceleration/Deceleration Times when the Speed is
Changed During Operation
If the speed or the override setting is changed during direct operation, the motor
will be accelerated or decelerated to the new speed. The actual acceleration and
deceleration times for this kind of operation can be calculated in the way shown
below.
Case 1: Next Speed is Faster
Actual acceleration time, T
1
= (V
1
-- V
0
)/(V
MAX
-- V
0
)
×
Ta
Actual acceleration time, T
2
= (V
2
-- V
1
)/(V
MAX
-- V
0
)
×
Ta
Actual deceleration time, T
3
= (V
2
-- V
0
)/(V
MAX
-- V
0
)
×
Td
•
The following axis parameter settings are used:
•
Maximum speed, V
MAX
(pps)
•
Initial speed, V
0
(pps)
•
The following operating data area settings are also used:
First Positioning Operation
•
Position
•
Speed, V
1
(pps)
•
Acceleration time, Ta (ms)
•
Deceleration time, Td (ms)
Next Positioning Operation
Summary of Contents for CS1W-NC113 - REV 02-2008
Page 1: ...CS1W NC113 213 413 133 233 433 Position Control Units ...
Page 2: ...iv ...
Page 4: ...vi ...
