Fanuc — 366 Alarm

Unlike a simple blown fuse, Alarm 366 usually indicates a pattern of overload. The causes fall into four distinct categories:

Contact your or a FANUC service representative if: fanuc 366 alarm

Once you have repaired the root cause, you must clear the alarm. FANUC "latches" this alarm even if the overload condition is gone. Unlike a simple blown fuse, Alarm 366 usually

After a memory battery change and parameter restore, the X-axis alarmed 366 immediately on power-up. Cause: Parameter 2020 (motor type) was incorrectly set to a smaller motor. The control thought a 10A current was 20A relative to the wrong motor’s rating. Solution: Corrected parameter 2020 to match the physical motor nameplate. Unlike a simple blown fuse