Code 270-0008: Table %1 erroneous
Issue Description & Safety Warning
The Heidenhain TNC Series CNC has triggered a critical Table %1 erroneous 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] A given table file has a faulty file name or contains incorrect syntax in the table description. [Error correction] - Check the file name of the table, and correct it if required The file name of a table may consist of only the following characters: - Letters from a to z and A to Z - The digits 0 to 9 - A period (.) - An underscore (_) - Check the table description and adapt it if required. It must contain, in this sequence and spelling, the keyword BEGIN, the table name, and optionally the keyword MM or INCH for the unit of measure - Contact your machine manufacturer
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 270-0008 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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