Latency to reach desired duty cycle value on motor output

6 years 7 months ago #29533144 by Yann21

I would like to know how to reduce the time needed to reach a desired duty cycle value on the motor output.
Please see the attached screenshot :
At first the duty cycle (purple signal) is defined to 10%. When the yellow signal goes high, a command for 90% duty cycle is set.
We can observe that the duty cycle is progressively increased to reach 90%: it take ~8ms to reach the desired value.

My hardware is a SDC1230 and I set max speed to 10 rpm and accelleration/decelleration to 50'000 rpm/s (I think that is the best parameter).
It's not a problem with my script. This problem is present whatever the method of command (RS232, PWM input). I think that is a limitation on the software to protect the harware.

It is possible to reduce this latency?

Thanks for your answer, regards.


Please Log in or Create an account to join the conversation.

Moderators: tonysantoni
Time to create page: 0.064 seconds