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problem with stepper motot driver

sabrovic89

problem with stepper motot driver
May 14, 2014 03:13PM

Registered: 9 years ago
Posts: 1

Hi,
I have a problem with my steppper motor driver ( see the picture of the driver in the attachement ) when increase the frequency of PUL signal up to 150 khz the motor did not rotate and make a noise but when i shake the PUL wire it works, when the frequency is 125 khz it works as usual , by the way the maximum frequency that the driver can support is 200 khz .

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NoobMan

Re: problem with stepper motot driver
May 14, 2014 03:51PM

Registered: 13 years ago
Posts: 1,352

Quote
sabrovic89
[...] by the way the maximum frequency that the driver can support is 200 khz.

I guess thats the difference between theory and practice smileys with beer

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Traumflug

Re: problem with stepper motot driver
May 15, 2014 08:06AM

Registered: 13 years ago
Posts: 7,616

For such speeds you definitely need acceleration. And you likely get into an area where motor torque is very low unless you run it at more than 12V. Microstepping has also a big influence, even at 1/128, 200 kHz means 470 RPM. No way to run the same frequency at 1/2 (30'000 RPM).

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