216

Check if superimposed control is active by verifying if RESTART SEARCH or MANUAL HANDLE INTERRUPT mode is engaged on the control panel.

Review the program line where the alarm occurred and identify if a tool change (T-code, M06) or restricted M-code (M98, M99, M198) is being executed.

Cancel the superimposed control mode by pressing RESET, then restart the program from a block before the tool change command.

Canceling superimposed control will lose the temporary coordinate offset. Ensure machine position is safe before resetting.

If program restart is needed near a tool change, restart from a block after the tool change has completed and coordinates are established.

Identify if the alarm occurred at a subprogram call (M98), return (M99), external call (M198), or reference point return (G28, G30) command.

Check parameter 7610 bit 0 (SUP) to verify superimposed control is enabled. If not needed, disable this feature to prevent accidental activation.

Exit superimposed control mode by pressing RESET and restart the program from a safe block that does not require these restricted commands.

If manual intervention is needed, use SINGLE BLOCK mode instead of manual handle interrupt to avoid entering superimposed control state.

Review the program block at the alarm location for coordinate system commands (G52, G54-G59, G92) or scaling commands (G50, G51).

Check the operation history to confirm if manual handle interrupt was used, which automatically activates superimposed control when the handle is moved.

Press RESET to cancel superimposed mode, then verify the active work coordinate system on the position display screen before restarting.

Note the current work offset before resetting to ensure proper coordinate system is active upon restart.

Restart the program from a block before the coordinate system change command, allowing it to execute in normal mode rather than superimposed mode.