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FANUC Alarm ARC-055 — No sync Eq (%s^4,%d^5)

FANUC ARC-055 (“No sync Eq (%s^4,%d^5)”): An Arc Start instruction specified synchronizing with an Equipment that is not also doing an Arc Start. First check: Determine why the sync Equipment is not starting, or do not use synchonization.

Updated 2026-08-29 · LogrobotLM reference

Description

An Arc Start instruction specified synchronizing with an Equipment that is not also doing an Arc Start.

Remedy · Remède

Determine why the sync Equipment is not starting, or do not use synchonization.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-055 mean?
FANUC ARC-055 (“No sync Eq (%s^4,%d^5)”): An Arc Start instruction specified synchronizing with an Equipment that is not also doing an Arc Start.
How do you troubleshoot FANUC alarm ARC-055?
Determine why the sync Equipment is not starting, or do not use synchonization.

Related codes / Codes liés

ARC-053WARN No ramp at process switch (%s^4,%d^5)ARC-054STOP No motion while arc weldingARC-056Invalid sync (%s^4,%d^5)ARC-057Cannot ramp t1=%d > t2=%d

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 →