BLDC Motor jerks if not "gently" moved first time after power up

ioni

#1

I have a question regarding IONI regarding initialisation

My hardware configuration:
-ioni - STD & PRO
-BLDC with encoder & hall
-1.7.1, 1.7.2
-(other details)

Problems arise when:
-Drive is either switched on for the first time, or re-initialised

How it behaves:
-If, after initial power-up & green ENA light, the motor shaft is wiggled by hand, or it is driven very slowly to start with, all is then fine, and I can subsequently drive the motor how I like. However, if I send a high speed to the motor after power-up/enable, it glitches & switches off (fault).

How I would expect it to behave:
-I would expect the initialisation process to be a little more bombproof.

I have attached following files:
-(consider adding saved Granity configuration file .drc)
-(screenshots)

I also would like to share that (additional info).

Note: you can tag the best answer as solution. This helps others to find the solution to the same question.


#2

Hi Dan

This sounds like the motor doesn’t initialize properly. Please make sure that the motor can move freely in the initialization, and also make sure that the MMC and MCC parameters are correctly set up.

Have you enabled the hall sensors in Granity?
What fault does your IONI give in the Testing tab?
What kind of glitch are you talking about?

Kind regards,
Esa