I was testing 1 nema23 5 amp 3phase stepper connected via step/dir with a Duet Wifi. I had issues with the velocity limit and overcurrent and repeating ramps with different settings. Once i started again a ramp, the stepper could not follow the position setpoint and stalled (the current went to max and stopped following the setpoint) - like a couple of times before. This caused a brown out (24V 25amp PSU). The duet just rebooted, but the odrive staid completely dead.
I have no access via USB and even the power LED is dark. It seems to be completely dead.
What could have caused this ?
Where to start to find the destroyed parts ?
The pcb looks still brand new - no damage visible.
Thanks in advance for any help.