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8.4.11 Speed Change After Starting Trapezoidal Control Type 1 (F171)
- The explanation below shows the program to change the speed to a speed over the target speed
during the trapezoidal control.
- Use the type 1 to change the speed to a speed faster than the target speed.
Time chart
Sample program
Precautions during programming
- To change the speed, specify the execution condition of F171 instruction to be always executed.
- Using the type 1 enables to perform the acceleration/deceleration control up to the maximum speed (50
kHz).
- Speed cannot be changed when the instruction is executed in the interrupt program.