FANUC Alarm SRVO-279 — SYSTEM Circuit abnormal 3

Manufacturer wording — SYSTEM Circuit abnormal 3 (%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-279 (“SYSTEM Circuit abnormal 3”): SVOFF (Servo OFF signal) input asserted. First check: Determine the to input SVOFF and repair.

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 →