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FANUC Alarm HRTL-075 — WARN Compressed File too small

FANUC HRTL-075 (“WARN Compressed File too small”): File Header data indicates more data should be found in the file than it actually contains. First check: Check the size of the file causing the error on the host computer, either PC or Unix system, and then delete the file.

Updated 2026-09-17 · LogrobotLM reference

Description

File Header data indicates more data should be found in the file than it actually contains. Compressed files have a header with a size field. The amount of data must match the size or it will not be copied. This can happen if an FTP file copy to either a PC or Unix system was interrupted.

Remedy

Check the size of the file causing the error on the host computer, either PC or Unix system, and then delete the file. Get another copy of the file from the original source (either robot or off line program system). Ensure it is larger than the original file from the host computer (as checked above) and then perform the copy operation again.

Related codes

HRTL-073WARN End of device list reachedHRTL-074WARN Device is not supported

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →