Trying to drive a large inrunner (rotor diameter 320mm, 42 magnets, so 42 poles) with a Flipsky FSESC 4.12. Updated to latest firmware and running in FOC mode.
I was surprised with the level of noise when running in FOC mode, which I'd heard was supposed to be fairly quiet. Running at max RPM at 55V (~900rpm), it's heckin' noisy. I've linked a Youtube video of the noise.
Is this normal noise for FOC or have I done something wrong?
inb4 you're running in brushless DC mdoe - I'm not. I couldn't get it to work in BLDC.
Any help appreciated!