FANUC Alarm SRVO-409 — DCS SSO Servo Disconnect …,…

Manufacturer wording — DCS SSO Servo Disconnect %x,%x
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-409 (“DCS SSO Servo Disconnect …,…”): SSO[4:C_SVOFF] is OFF First check: Check Safe I/O connect setting.

Updated 2026-09-17 · LogrobotLM reference

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 →