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190
Acceleration/Deceleration
Section 7-6
Next Command
• Position
• Speed, V
2
(pps)
Note
When the designations for the next positioning operation are given during
operation, T
2
and T
3
are calculated using the acceleration time Ta and decel-
eration time Td specified at the time operation started from the stopped posi-
tion. It is not necessary to specify new acceleration and deceleration times.
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
Calculating Accel/Decel Times for Speed Changes 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 accel-
eration 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)
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
Содержание CJ1W-C113 - REV 02-2008
Страница 1: ...Position Control Units Cat No W397 E1 07 SYSMAC CJ1W NC113 213 413 133 233 433 OPERATION MANUAL ...
Страница 2: ...CJ1W NC113 213 413 133 233 433 Position Control Units Operation Manual Revised February 2008 ...
Страница 3: ...iv ...
Страница 13: ...xiv ...
Страница 15: ...xvi ...
Страница 19: ...xx ...
Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 43: ...16 Control System Principles Section 1 7 ...
Страница 47: ...20 Basic Procedures Section 2 ...
Страница 139: ...112 Examples of Parameter Settings Section 4 9 ...
Страница 173: ...146 Transferring Data with CX Position Section 5 7 ...
Страница 223: ...196 Sample Program Section 7 7 ...
Страница 259: ...232 Sample Program Section 8 10 ...
Страница 293: ...266 Easy Backup Function Ver 2 0 or later Section 9 11 ...
Страница 369: ...342 Reading Error Information with CX Position Section 11 8 ...
Страница 385: ...358 Common Parameter Area Appendix C ...
Страница 399: ...372 Parameter Coding Sheets Appendix E ...