FANUC Alarm SRVO-255 — E-STOP circuit abnormal (KM2)
FANUC SRVO-255 (“E-STOP circuit abnormal (KM2)”): Welding occurs at relay in E-STOP circuit. First check: Replace an E-STOP unit Likely part: E-stop unit (E-stop unit).
Updated 2026-08-29 · LogrobotLM reference
Description
Welding occurs at relay in E-STOP circuit.
Remedy · Remède
Replace an E-STOP unit
Part to check / replace · Pièce à contrôler / remplacer
FANUC SRVO-255 points to the hardware below — start here before ordering. · SRVO-255 met en cause l'organe ci-dessous : commencez par là.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-255 mean?
- FANUC SRVO-255 (“E-STOP circuit abnormal (KM2)”): Welding occurs at relay in E-STOP circuit.
- How do you troubleshoot FANUC alarm SRVO-255?
- Replace an E-STOP unit
- Which part is involved in FANUC SRVO-255?
- SRVO-255 points to E-stop unit (E-stop unit). Confirm the real cause against the robot backup before replacing a part.
Related codes / Codes liés
Same hardware involved / Même matériel en cause
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 →