Check to see how the spindle fault wires are connected in the GS20. IIRC, the indicated terminal came wired R1O from CNCDepot. CNC12 wants to see R1C.
Check to see how the spindle fault wires are connected in the GS20. IIRC, the indicated terminal came wired R1O from CNCDepot. CNC12 wants to see R1C.