FANUC Alarm FILE-064 — Unspecified DOS system error:…
Manufacturer wording — Unspecified DOS system error:%d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC FILE-064 (“Unspecified DOS system error:…”): An unusual File System error has occurred. First check: Retry the operation.
Updated 2026-09-17 · LogrobotLM reference
Description
An unusual File System error has occurred. This alarm should rarely occur. The number after the error text indicates:
Remedy
Retry the operation. If the alarm consistently occurs then manually check that the files were read, written, etc. Using a personal computer check the media with a Check Disk or Error-checking tool. If reporting the alarm to FANUC or FANUC Robotics, be sure to include the number that is provided.
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 →