I got a metr pro today, man this thing is awesome! gotta take it out tonight to test the modes, overlay stuff, etc- at least that’s what I was thinking.
Boom! The DRV is blown.
The motor now has lots of cogging resistance when connected to that one focbox with the blown DRV. If I connect the first two phase wires, the motor spins fine, but if I connect the third far right one to any others, resistance to the motor spinning. Is this normal behavior for a blown DRV?
If I can get this focbox fixed, what should I do to prevent this from blowing again? I got a ton of over current faults right as it happened… super high negative current. I thought maybe the motor phases shorted so I disconnected all the phase leads and both motors spin normal and have the same resistance values between all phases on both motors, only the one focbox with a blown DRV.
Than extra caps shouldn’t be needed at all.
Maybe it was just time for the fb to say goodbye.
When you checked the phase wire resistance, did you also check resistance to ground ( like the shaft or bell somewhere where there is no color)?
Your focbox still working?
Think i’ve got the exact same with my 6.6 it works “fine”, but one of the motor has way more cogging on the side of the probably issued vesc.
While braking i Can feel that it turns differently than the other motor, it’s not turning 100% freely.
And got those Over voltage faults too