FANUC Alarm FILE-073 — USB error …
Manufacturer wording — USB error %d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC FILE-073 (“USB error …”): An unusual USB File System error has occurred. First check: Report the error number to your FANUC or FANUC Robotics technical representative.
Updated 2026-09-17 · LogrobotLM reference
Description
An unusual USB File System error has occurred. This alarm should rarely occur
Remedy
Report the error number to your FANUC or FANUC Robotics technical representative.
Related codes
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 →