Motion Control
ASDA-B3
7-48
7
Position command followed by a Position command
When the PR executor receives two consecutive Position commands, if they do not have Interrupt
or Overlap functions, the PR executor issues the first Position command to the motion command
generator, and the generator starts the first part of position control. After the first Position
command completes, if no delay time is set, the PR executor issues the second Position
command for the generator to start the second part of position control (see Figure 7.1.6.2 (a)).
If the first Position command includes a delay, the PR executor starts counting the delay time right
after the motor reaches the target position. Then it issues the second Position command for the
generator to start the second part of position control as shown in Figure 7.1.6.2 (b).
PR#1
Position
DLY=[0] 0 ms
10000 PUU
ABS
200 rpm
PR#2
Position
DLY=[0] 0 ms
10000 PUU
ABS
500 rpm
PR
executor
(1 ms command cycle)
Motion
command
generator
Time
Speed
(1 ms command cycle)
(a) Position command without delay
PR#1
Position
DLY=[1] 100 ms
10000 PUU
ABS
200 rpm
PR#2
Position
DLY=[0] 0 ms
10000 PUU
ABS
500 rpm
PR
executor
Motion
command
generator
Time
Speed
100 ms
(1 ms command cycle)
(1 ms command cycle)
(b) Position command with delay
Figure 7.1.6.2 Position sequence command
Содержание ASDA-B3 Series
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