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-169 — Ext.E-stop/SVOFF/ServoDisconnect

FANUC SRVO-169 (“Ext.E-stop/SVOFF/ServoDisconnect”): The external emergency stop signal or the servo disconnect signal or SVOFF signal is asserted. First check: 1. Release the external emergency stop signal and press RESET.

Updated 2026-09-17 · LogrobotLM reference

Description

The external emergency stop signal or the servo disconnect signal or SVOFF signal is asserted.

Remedy

1. Release the external emergency stop signal and press RESET. 2. If the servo disconnect signal or SVOFF signal is used, release it and press RESET.

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 →