You are here

Big Inrunner - Noisy In FOC Mode

3 posts / 0 new
Last post
skeaux
Offline
Last seen: 2 months 3 weeks ago
Joined: 2020-03-02 02:55
Posts: 2
Big Inrunner - Noisy In FOC Mode

Howdy y'all. 



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!

https://youtu.be/1UKrdppzBoY

district9prawn
Offline
Last seen: 3 weeks 3 days ago
VESC Free
Joined: 2018-04-26 12:18
Posts: 69

It sounds normal to me. And the motor isn't exactly silent when it's spinning unpowered at the end. Bldc mode is much noisier again.

skeaux
Offline
Last seen: 2 months 3 weeks ago
Joined: 2020-03-02 02:55
Posts: 2

Thanks for the advice; I'm new to this so it's hard to gauge what's expected and what's malfunctioning.