I was in the middle of a cut file. When everything stopped. I traced the trouble to the inside of the controlled box for the Colombo spindle. One of the two control wires coming from the main shopbot control box was loose from the connecting block in the spindle control box. One of the wires was connected to the FWD terminal, and I do not know where the other wire goes. It appeared to be going to M12, M13 or M14 but I do not know which one. I looked through my documentation and cannot seem to find any information on where this wire went.