LogrobotLM

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FANUC Alarm FILE-041 — WARN File not locked

FANUC FILE-041 (“WARN File not locked”): You tried to unlock file which you had not locked. First check: Don’t unlock a file that is not locked.

Updated 2026-09-17 · LogrobotLM reference

Description

You tried to unlock file which you had not locked.

Remedy

Don’t unlock a file that is not locked. You can only unlock files which YOU have locked.

Related codes

FILE-039WARN Directory already existsFILE-040WARN Illegal file access modeFILE-042WARN ( this is an internal code)FILE-043WARN Context table is full

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 →