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FANUC Alarm SRVO-263 — SERVO Chain 2 (SVDISC) abnormal

FANUC SRVO-263 (“SERVO Chain 2 (SVDISC) abnormal”): A weld fault occurred on the E-STOP unit. First check: Repair the MON3 circuit on the E-STOP unit.

Updated 2026-08-29 · LogrobotLM reference

Description

A weld fault occurred on the E-STOP unit.

Remedy · Remède

Repair the MON3 circuit on the E-STOP unit.

Frequently asked · Questions fréquentes

What does FANUC alarm SRVO-263 mean?
FANUC SRVO-263 (“SERVO Chain 2 (SVDISC) abnormal”): A weld fault occurred on the E-STOP unit.
How do you troubleshoot FANUC alarm SRVO-263?
Repair the MON3 circuit on the E-STOP unit.

Related codes / Codes liés

SRVO-261SERVO Chain 2 (NTED) abnormalSRVO-262SERVO Chain 1 (SVDISC) abnormalSRVO-264SYSTEM E.STOP circuit abnormal 1SRVO-265SERVO E.STOP circuit abnormal 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 →