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FANUC Alarm MOTN-121 — WARN Invalid config. string (G:%d^2)

FANUC MOTN-121 (“WARN Invalid config. string (G:%d^2)”): Invalid config string First check: Reteach your config string

Updated 2026-08-29 · LogrobotLM reference

Description

Invalid config string

Remedy · Remède

Reteach your config string

Frequently asked · Questions fréquentes

What does FANUC alarm MOTN-121 mean?
FANUC MOTN-121 (“WARN Invalid config. string (G:%d^2)”): Invalid config string
How do you troubleshoot FANUC alarm MOTN-121?
Reteach your config string

Related codes / Codes liés

MOTN-119WARN Servo is off (G:%d^2)MOTN-120WARN Invalid reference position (G:%d^2)MOTN-122STOP Dfilter not empty (G:%d^2)MOTN-123WARN Not enough node (G:%d^2)

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 →