Fanuc 366 Alarm -

The causes for this alarm can be categorized into three main areas: Power Issues, Internal Drive Faults, and Wiring/Feedback faults.

Officially defined as ",” this error can be frustratingly vague. It doesn’t point to a single broken wire or a blown fuse; instead, it signals a breakdown in the communication chain regarding the operational status of the amplifier. When this alarm appears, the machine usually locks up, refusing to move the axis until the fault is cleared. fanuc 366 alarm