LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

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 2026-08-29 · LogrobotLM reference

Description

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

Remedy · Remède

Please verify the daughter program name.

Frequently asked · Questions fréquentes

What does FANUC alarm LANG-051 mean?
FANUC LANG-051 (“Wrong daughter program name”): The daughter program name is not matched with the parent program name.
How do you troubleshoot FANUC alarm LANG-051?
Please verify the daughter program name.

Related codes / Codes liés

LANG-018WARN Group mask value is incorrectLANG-050WARN %s contains %s, program/file names must matchLANG-052Cannot load daughter program(%d)LANG-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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →