FANUC Alarm SRVO-027 — WARN Robot not mastered

Manufacturer wording — WARN Robot not mastered(Group:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SRVO-027 (“WARN Robot not mastered”): An attempt was made to perform calibration, but mastering has not yet been completed. First check: Perform mastering from the calibration screen [6 SYSTEM CALIBRATION].

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 →