Fanuc 414 Servo Alarm | Z Axis Detect Error

A broken or frayed encoder cable is the most frequent cause. If the CNC cannot "see" where the motor is, it triggers a detection error.

This alarm is about motor overload or overcurrent. It is strictly about loss of position feedback . fanuc 414 servo alarm z axis detect error

How?

: Coolant or oil ingress into the motor’s power or encoder connectors . A broken or frayed encoder cable is the most frequent cause

The Fanuc 414 servo alarm is a type of alarm that occurs when the control system detects a problem with the servo motor or its feedback system. The alarm code "414" specifically indicates a detect error on the Z-axis servo. This error can be caused by a variety of factors, including faulty sensors, incorrect motor tuning, or problems with the servo amplifier. It is strictly about loss of position feedback

Look at the servo amplifier's internal LED. An 8, 9, or A indicates which axis channel is failing (8 for the first axis, 9 for the second).