Haas Alarm: 632 (M) APC-UNCLAMP ERROR – The pallet did not unclamp in the amount of time allowed. This can be caused by a bad air solenoid, a blocked or kinked airline, or a mechanical problem. After correcting the condition, run M50 to continue machining. VF-APC: Discrete Input “M-Code Finish” or “Pallet Clamp SW” should change from 1 to zero when pallet is unclamped.