Fanuc 7115 Alarm !!top!! Guide

Ensure all conduit fittings and junction boxes are properly sealed against liquid intrusion. Coolant degradation of encoder cables is a leading cause of intermittent servo feedback alarms.

Common Causes

If you see this message on your screen, the core of the issue is that the CNC control has attempted to change the spindle's speed range (usually by switching between high and low gear), but the process has failed or timed out. The machine is effectively telling you that it cannot safely change the spindle's operating mode, and it has locked itself in a safe state to prevent damage. fanuc 7115 alarm

It is frequently associated with FANUC Series 16/18/21/0i controls. Ensure all conduit fittings and junction boxes are