High−level Instructions
3 − 505
The pulse output frequency can be changed by rewriting the target speed during the pulse output.
Two control methods are avialable, which are type 0 and type 1. Using the type 0, the speed can be changed
within the range of the target speed specified first.
Using the type 1, the speed can be accelerated/decelerated up to the range of the maximum frequency,
regardless of the target speed specified fist.
Image of operation 1: When the target speed is not changed
Time
Initial speed
Target value
Trigger
Deceleration stop request by F0(MV) S,DT90052
Target value
Acceleratrion
time
Deceleration time Deceleration time
Pulse output
instruction flag
Image of operation 2: When the target value is changed
Time
Second change of
target speed
First change of target speed
Initial target speed
Acceleratrion Deceleration stopDeceleration
When changing the target
value, keep the trigger ON.
Acceleratrion
Trigger
Pulse output
instruction flag
Precautions during programming
When the same channel is described in a normal program and interrupt program both, do not execute them at
the same time.
This instruction cannot be executed when the corresponding control flag to the channel started is on.
When rewriting during RUN is performed, the pulse output will stop.
The instruction cannot be started when the deceleration stop request flag is on.
To restart after stopping the operation, turn off the trrigger once, and then turn it on again.
When the instruction is started during the interrupt program, specify the execution in the interrupt program
with the control code. Speed cannot be changed when the instruction is executed in the interrupt program.
FP0R
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