LogrobotLM

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FANUC Alarm SPOT-028 — PAUSE Serial initialization failed

FANUC SPOT-028 (“PAUSE Serial initialization failed”): Serial port specification is invalid First check: Make sure that the port exists

Updated 2026-08-29 · LogrobotLM reference

Description

Serial port specification is invalid

Remedy · Remède

Make sure that the port exists

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-028 mean?
FANUC SPOT-028 (“PAUSE Serial initialization failed”): Serial port specification is invalid
How do you troubleshoot FANUC alarm SPOT-028?
Make sure that the port exists

Related codes / Codes liés

SPOT-026PAUSE Reset welder timeout %sSPOT-027PAUSE Serial sequence not startedSPOT-029PAUSE Serial option not loadedSPOT-030PAUSE Gun contactor fault %s

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 →