Coolant, oil, or metal shavings have penetrated the power cable connectors, causing phase-to-phase shorts.
If the robot is not physically touching a hard stop, the software limits might be corrupted. Press the key on the teach pendant. Select SYSTEM , then press F1 [TYPE] and choose Axis Limits . fanuc 7115 alarm
Disconnect the motor power cables (typically labeled U, V, W) directly from the bottom of the amplifier. Turn the CNC machine back on. Coolant, oil, or metal shavings have penetrated the