Fanuc 414 Servo Alarm Z Axis Detect Error Jun 2026

View Diagnostic screen No. 200 . If bit #4 (HCA) is 1, it indicates an Abnormal Current alarm. If bit #6 (LV) is 1, the voltage is too low.

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By cross-referencing the alarm code with the Fanuc maintenance manual, the technician can narrow down whether the issue is a broken wire (detection error) or a heavy load (overload error). fanuc 414 servo alarm z axis detect error

| Field | Detail | |-------|--------| | | 414 | | Message | SERVO ALARM: (Z-AXIS) DETECT ERROR | | Meaning | The software position detection system has detected an abnormal signal. Specifically, the Pulse Coder (encoder) signal is missing or corrupt on the Z-axis. | | CNC Suspends | Yes – Immediate feed hold and servo off. | | Applies To | Z-axis (usually the vertical axis – spindle head or knee). | View Diagnostic screen No