Hello ST Team,
I'm encountering an overvoltage fault when decelerating a motor from high speeds. My system uses an STM32 F401RE microcontroller with an IHM16M1 driver board, controlled via Field-Oriented Control (FOC).
The motor operates normally at high RPMs, but when I command a speed reduction, the system immediately triggers an overvoltage fault, indicated as an "ACK Fault" in the Motor Pilot interface.
We've already tried troubleshooting the overvoltage fault on our motor controller by:
Increasing the voltage range in the bus voltage sensing section.
Following the recommended steps for overvoltage fault resolution outlined in the user manual.
Despite these efforts, the issue is still happening.
What are the solutions for preventing the overvoltage fault during deceleration?
We're looking for other potential solutions or insights. Any suggestions on effective strategies would be greatly appreciated.
Thank you in advance for your support.
Best regards,
Rahul
