Fanuc 414 Servo Alarm Z Axis Detect Error Repack ((top)) Here

at 1000V. A standard multimeter may not detect insulation failure. : Faulty axis control cards (e.g., A20B-2902-0290

Start: Alarm 414 on Z │ ▼ Check cables & connectors → Loose/bad? → Yes → Fix → Reset alarm │ No ▼ Swap motor with another axis (if possible) │ ▼ Alarm moves? → Yes → Motor encoder faulty → Go to Repack │ No ▼ Alarm stays on Z → Check servo amp & CNC feedback board │ ▼ Replace servo amp or cable → Still alarm? → Replace motor fanuc 414 servo alarm z axis detect error repack

: Excessive resistance in the Z-axis (e.g., tight gibs, failed thrust bearings, or a binding brake) forcing the motor to draw excess current. at 1000V