FANUC Alarm SRVO-039 — SERVO Motor speed excess

Manufacturer wording — SERVO Motor speed excess(G:%d A:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-039 (“SERVO Motor speed excess”): CMC cannot work because the calculated motor speed exceeded the specification. First check: Reduce the motion speed or disable CMC.

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 →