Can anyone tell me if there's any provision in a Fanuc 10M control to incorporate a safety interlock which will prevent Cycle Start from occurring unless a user-added switch is closed? The issue is an older cnc machine that never had doors or any kind of enclosure. We're trying to make the machine safer by installing a mechanical barrier between the operator and the spindle, and having the barrier actuate a switch when correctly in position. Any help would be much appreciated.