Code 330-00E7: FS data record cannot be accepted
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical FS data record cannot be accepted 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] - There are at least two FS data records with identical ID in different parameter sets and at least one safe parameter SMP has a different value in both parameter set. [Error correction] - Compare and adjust the values of the safe parameters SMP of the same data record between the parameter sets. - To avoid such errors, HEIDENHAIN recommends using the “KeySynonym” function. - Inform your service agency.
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 330-00E7 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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