Fanuc 414 Servo Alarm Z Axis Detect Error !exclusive! Jun 2026

On the control screen, check Diagnostic Parameters 200 and 204 . A '1' in the OVC bit indicates an overcurrent condition.

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. fanuc 414 servo alarm z axis detect error

: Check the seven-segment LED on the servo amplifier. For multi-axis drives, an 8, 9, or A On the control screen, check Diagnostic Parameters 200

Are you seeing any (like "8." or "9.") on the servo amplifier's LED display inside the cabinet? Diagnose a Fanuc High Current Alarm in 10-Steps : Check the seven-segment LED on the servo amplifier

Fanuc 414 Servo Alarm on the Z-axis indicates a digital servo system fault where the CNC has detected an abnormality in the servo drive or its feedback circuit. Because the Z-axis is vertical, it is often subject to higher mechanical stress and specific failure modes like brake malfunctions or counterweight imbalances. TIE Industrial Fanucworld Initial Diagnostic Steps To pinpoint the exact cause, refer to the CNC Diagnostic Screen Servo Amplifier LED CNC Diagnostics Diagnostic No. 200 HCA (Bit 4)