I have a 5 Axis BOB w/ 2 led lites. see the BOB here One of lites go out when Mach3 is started.
The lite is near the En-Dir-Step-Com connector. The Z stepper doesnt work.
The 2nd lite near the printed "E"(Stepper Controller E) is on.

The driver (CW8060) and Bob is connected to the Z stepper. Had it running before.

Reckd wiring several times.

What exactly is the lite for ?