FANUC Alarm SRVO-077 — SERVO Dynamic brake alarm

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

FANUC SRVO-077 (“SERVO Dynamic brake alarm”): The line tracking pulse count overflowed. First check: Contact your FANUC Robotics technical representative.

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 →