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Speed Feedback & Overvoltage Faults with Sensorless BLDC Motor (Nucleo-F101RE + X-Nucleo-IHM16M1)

Bablu
Associate II

Hello,

I am running a BLDC motor in sensorless mode using Nucleo-F101RE with the X-Nucleo-IHM16M1 board. The motor starts successfully when I press the Start button from the Motor Pilot GUI.

However, I am facing the following issues:

  • When I suddenly increase the speed to high RPM, I get a speed feedback fault.

  • When I suddenly decrease the speed, I also get a speed feedback fault.

  • Sometimes I also encounter an overvoltage fault during these speed changes.

Any guidance on how to resolve or tune the parameters properly would be very helpful.

Thank you

Best Regards

Rahul

1 REPLY 1
GMA
ST Employee

Hello @Bablu,

For speed feedback fault, review 2.10. Why do I have a Speed feedback fault message chapter in Frequently Asked Questions link.

If you agree with the answer, please accept it by clicking on 'Accept as solution'.
Best regards.
GMA