LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm SRVO-282 — SERVO Chain 1 (SVOFF) abnormal

FANUC SRVO-282 (“SERVO Chain 1 (SVOFF) abnormal”): Single chain 2 (0V) failure occured when SVOFF input (Servo OFF signal) is asserted. First check: Repair the circuit of the chain 2 (0V) on SVOFF hardware Set CHAIN FAILURE detection to TRUE on SYSTEM/CONFIG screen And push reset button on Teach pendant

Updated 2026-09-17 · LogrobotLM reference

Description

Single chain 2 (0V) failure occured when SVOFF input (Servo OFF signal) is asserted.

Remedy

Repair the circuit of the chain 2 (0V) on SVOFF hardware Set CHAIN FAILURE detection to TRUE on SYSTEM/CONFIG screen And push reset button on Teach pendant

Related codes

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. How this reference is built →