Code LANG-006: Invalid or corrupted TP file
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Invalid or corrupted TP file 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: A when loading .TP file, invalid data was found. This may occur if a .TP file has become corrupted or if some other type of file e.g., a .PE file, has been copied or renamed to a .TP file. Remedy: Generate (using SAVE, with $ASCII_SAVE = FALSE) and load a valid .TP file. Note: An existing TP program in the controller might have been corrupted as a result of your attempt to load the invalid file. You might have to reteach the teach pendant program, before you save it as a .TP file.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc R-30i Series Robot Controller Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code LANG-006 on the R-30i Series Robot Controller identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Fanuc's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 6553 Fanuc R-30i Series Robot Controller codes.
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