Power on the control. If the 414 alarm moves from the Z-axis to the axis you swapped it with, the problem lies in the cable, encoder, or motor. If the alarm remains strictly on the Z-axis drive, the servo amplifier module itself is defective. Step 3: Test Electrical Resistance at the Motor
Comprehensive Guide: Troubleshooting FANUC 414 Servo Alarm Z-Axis Detect Error Fanuc 414 Servo Alarm fanuc 414 servo alarm z axis detect error
Disconnect the motor leads (U, V, W) from the amplifier. If the alarm persists when you power up, the amplifier is definitely faulty . Power on the control
Internal transistor failure (IPM module) inside the FANUC drive generates false overcurrent alarms. Step 3: Test Electrical Resistance at the Motor
Check the cooling fans on the back of the servo amplifier. If they fail, the drive will overheat and trigger a 414 alarm. To help you narrow this down, could you tell me:
Clean, dry, and reseal the terminal box; replace damaged connectors.