Program Stop Commands

Next Generation Control Mill Operator's Manual

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There are (2) main M-codes and (1) subprogram M-code to denote the end of a program or subprogram:

  • M30 - Program End and Rewind ends the program and resets to the beginning of the program. This is the most common way to end a program.
  • M02 - Program End ends the program and remains at the location of the M02 block of code in the program.
  • M99 - Subprogram Return or Loop exits the subprogram and resumes the program that called it.
    note: If your subprogram does not end with M99, the control gives Alarm 312 - Program End.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.