LogrobotLM

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FANUC Alarm LANG-051 — Wrong daughter program name

FANUC LANG-051 (“Wrong daughter program name”): The daughter program name is not matched with the parent program name. First check: Please verify the daughter program name.

Updated 2026-09-17 · LogrobotLM reference

Description

The daughter program name is not matched with the parent program name.

Remedy

Please verify the daughter program name.

Related codes

LANG-018WARN Group mask value is incorrectLANG-050WARN … contains …, program/file names must matchLANG-052Cannot load daughter programLANG-053Cannot process daughter program

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 →