Jun 08, 2007 Does anyone know if there is an M code for a Deckel Maho control to unlock the cabinet door in conjunction with an M0 program stop? I have a part which requires a M0 stop in mid-cycle to move a clamp. I always just press the manual door release button on the panel to. Aug 21, 2017 Dealing with alarm codes is a matter of first understanding what they mean, and then deciding what’s causing the code based on the code’s meaning. There’s a list of Fanuc Alarm codes below to help. Diagnosis of alarm codes on the CNC machine can be an expensive time waster.