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

[Bablu]

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

[GMA]

Hello @Bablu,

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