104004

Check the NC program for work offset commands (G54, G55, G56, etc.) before any machining moves or tool calls.

Verify that the program initialization block contains a valid work offset selection near the beginning of the program after safety commands.

Insert the appropriate G54-G599 command in the NC program before the line where the alarm occurs.

Verify work offset values are properly set in the offset memory (Settings -> Work Offsets) and contain valid coordinate data.

Search the NC program for G500, SUPA, or G153 commands that cancel active work offsets and frames.

Verify that after any offset cancellation command, a new work offset (G54-G599) is explicitly called before machining moves.

Review subroutines and cycles for G500 commands that may inadvertently cancel the active workpiece without restoration.

Modify program logic to ensure work offset reactivation after any frame cancellation operations.

Ensure machine is in safe position before program modification and retesting

Identify if the alarm occurs after returning from a subprogram (M17, M99, RET) or standard cycle execution.

Check if the subprogram contains frame manipulations (TRANS, ROT, SCALE, ATRANS, AROT) without proper reset using G500 followed by work offset reselection.

Review cycle parameters and post-cycle behavior to ensure the work offset context is preserved or explicitly restored.

Add explicit G54-G599 command in main program after subprogram calls if work offset context is lost.