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Press RESET button to clear the alarm and return channel to ready state.

Ensure all part programs are fully stopped (not just in feed hold) before attempting reorganization. Check channel status display.

Select Mode RESET or MDA and allow controller to reach stable state with no active program blocks.

Manually initiate reorganization via Services > Program > Reorganize menu when channel is completely idle.

Ensure no automatic program start or restart is pending before reorganization

Check available user memory via Diagnostics > System Data > Memory display. Note percentage of free memory.

Delete obsolete or unnecessary part programs, tool offset tables, and work offset data to free memory space.

Back up critical programs to external storage before deletion

Perform a controlled power cycle (shutdown via HMI, wait 30 seconds, restart) to clear temporary buffers.

Ensure machine is in safe position and no workpiece is loaded

Retry reorganization after memory cleanup. If persistent, consider archiving programs and performing full memory initialization via commissioning data reset.

Full memory reset requires backup of all system data and machine parameters

Document current software version via HMI: Startup > Version. Check if system is running SW 3.x or earlier as indicated by alarm text.

Review Siemens service documentation and technical bulletins for known issues with reorganization on your specific software version.

If alarm occurs repeatedly, contact Siemens support to verify if software upgrade to version 4.x or higher resolves the issue (this alarm is obsolete in newer versions).

Consider scheduling software update to current supported version which includes improved memory management and eliminates this legacy alarm condition.

Software updates require qualified service personnel and complete system backup