My project was running smoothly until today. After several hours of run time over the past week I am now getting an illegal hall state error on M1 as soon as I power the board. power is supplied by a 48V meanwell switching supply. If I switch to a 12V switching supply I don’t get the illegal hall state error and the motor attempts to spin before throwing dc bus under voltage error. The low voltage trip level is set at 8V and the supply is not dropping out.
I have M0 and M1 configured the same and have 22nF capacitors on the encoder inputs. Whats interesting is that M0 works in all scenarios. Swapping cables and motors the error stays with M1. Prior to yesterday M1 was working fine. I checked the Hall Effect signals at the board while spinning the motor by hand and all three are nice square waves.
I have searched other post and nothing is quite like what I am seeing. Any advise or areas to look at is greatly appreciated.
v3.6 56V Board with 22nF caps on encoder inputs
v0.5.1 rc firmware
48V supply voltage