Code 140-0001: Backup copy of the configuration data cannot be created.
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Backup copy of the configuration data cannot be created. alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
[Cause of error] When configuration data are written, a backup copy of the parameter file is created. This file could not be created. – File is write-protected - Drive is full - Problem with the hard disk [Error correction] - Remove the write protection - Delete unneeded files on the hard disk or memory card to make space.
Source: HEIDENHAIN NC Error Messages — TNC7/640/620/320/128, CNC PILOT 640, MANUALplus 620 (10/2023)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Heidenhain TNC Series CNC Alarms
Heidenhain controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 140-0001 on the TNC Series CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Heidenhain's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4497 Heidenhain TNC Series CNC codes.
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