Code 330-00C9: Error during activation of an FS configuration
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Error during activation of an FS configuration 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] One of the following safe machine parameters was changed after the self-test began: - Time to next self-test - Time monitoring for brake test These machine parameters can be changed only before starting the safety self-test. [Error correction] - Undo the change in the affected machine parameters. - Restart the control. - Inform your service agency. [1178] 10/2023
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 330-00C9 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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