130-012E

Access MOD Functions

Power on the control and immediately press the MOD key during boot sequence. If the control reaches SystemManager, the storage media is at least partially functional.

If you cannot access MOD functions, the system may need a complete software reinstallation from recovery media or BIOS-level tools.

Check Error Log for Specific Objects

Navigate to TNC:\system\ directory and open ErrorLog.txt or use MOD -> System Information -> Error Log to identify which specific objects failed to load. Look for entries immediately before the 130-012E alarm.

The error log may reference specific .SYS, .DLL, or .PLC files that are missing or corrupted, giving you exact targets for restoration.

Restore from TNCbackup Archive

If you have a recent TNCbackup archive, boot to SystemManager (MOD functions) and use the restore function to reload the complete system configuration including software objects. Ensure the backup was created with the same or compatible NC software version.

Restoring a backup from a significantly different software version may cause compatibility issues. Verify version compatibility before proceeding.

Perform Complete Software Reinstallation

If no valid backup exists, perform a fresh NC software installation using the original Heidenhain installation DVD or USB media. Boot to SystemManager, select Software Update, and follow the complete installation procedure for your specific TNC model.

Complete software reinstallation will erase all user data, programs, and configuration unless previously backed up. Document all machine parameters before proceeding.

Verify PLC Program Presence

Boot to MOD functions and navigate to MOD -> PLC -> PLC Configuration. Check if a PLC program is listed and if the status shows as valid. Look for error indicators or missing file references.

On iTNC 530 and TNC 620/640, the PLC program is typically named plc.plc and located in TNC:\system\plc\ directory.

Reload Machine PLC Program

Obtain the correct PLC program for your specific machine from the machine tool builder or from your backup archive. Use MOD -> PLC -> Load PLC Program to install the PLC file. Ensure you have the correct PLC version matching your machine configuration.

Loading an incorrect PLC program can cause machine malfunction or unsafe operation. Verify the PLC program matches your exact machine model and configuration.

Compile and Activate PLC

After loading the PLC program, use MOD -> PLC -> Compile PLC to rebuild the PLC objects. Monitor for compilation errors that might indicate corrupted source files. Activate the PLC and reboot the control.

If compilation fails with specific object errors, the PLC source file itself may be corrupted and need to be obtained from a clean backup or the machine builder.

Check Storage Media Health

Boot to SystemManager (MOD functions) and navigate to MOD -> System Information -> Storage Media. Check the status of the CF card or SSD for errors, wear indicators, or read/write failures. Note any warning messages.

On TNC 640 and newer controls, the Storage Media display shows SSD health percentage and predicted remaining lifetime.

Run File System Check

In SystemManager, access MOD -> Service -> File System Check. Run a complete file system verification and repair operation. Allow the process to complete fully without interruption, which may take 10-30 minutes depending on media size.

Do not power off the control during file system check or repair operations as this can cause permanent data loss and worsen file system damage.

Replace Storage Media if Failed

If file system check reports unrecoverable errors or the media shows physical failure indicators, replace the CF card or SSD with a new Heidenhain-approved storage device. After replacement, perform a complete software installation from original media.

Always use Heidenhain-supplied or approved storage media. Generic CF cards or SSDs may lack the industrial-grade specifications required for reliable control operation.

Restore System After Media Replacement

After installing new storage media, boot from Heidenhain installation media and perform complete NC software installation. Then restore machine-specific configuration, PLC, and parameters from your TNCbackup archive.

Ensure the backup archive is stored on external media (USB drive or network) and not on the failed storage device being replaced.