Haas Alarm: 645 – AMPLIFIER GROUND – Haas Mill

Haas Alarm: 645 (M) AMPLIFIER GROUND – Amplifier Ground Fault. A ground short was detected in the output of the am- plifiers or spindle drive. This can be caused by a short to ground in the motor cables, servo or spindle motors. Check all cables and servo amplifiers, if the problem persists call your dealer. Cycle Power to Continue!