Probably
Originally Posted by
Rainman229
Would this problem cause the cnc stepper drives to Fault? Why?
The 5v which gets blown up supplies all the 5v logic.
Examine ALL PCBs for blown tracks.
That means removing them to see the undersides.
Take a few photos to remind you where the wires were connected.
You will almost surely find at least one blown track.
Only then can we determine what has been destroyed.
Super X3. 3600rpm. Sheridan 6"x24" Lathe + more. Three ways to fix things: The right way, the other way, and maybe your way, which is possibly a faster wrong way.