Fanuc 414 Servo Alarm Z Axis Detect Error [portable] May 2026

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

When this alarm occurs, the CNC screen displays "414 SERVO ALARM: Z AXIS DETECT ERROR". However, the machine's electrical cabinet provides the specific hardware status:

The on the Z-axis is a high-current detection error within the digital servo system. It signifies that the CNC control has detected abnormal current flow or a hardware fault related to the Z-axis servo amplifier, motor, or cabling. Because the Z-axis often carries the weight of a spindle or heavy tooling, this error can also be triggered by mechanical binding or counterweight failure. Understanding the 414 Alarm Signal

Fanuc 414 Servo Alarm Z Axis Detect Error [portable] May 2026

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

When this alarm occurs, the CNC screen displays "414 SERVO ALARM: Z AXIS DETECT ERROR". However, the machine's electrical cabinet provides the specific hardware status: fanuc 414 servo alarm z axis detect error

The on the Z-axis is a high-current detection error within the digital servo system. It signifies that the CNC control has detected abnormal current flow or a hardware fault related to the Z-axis servo amplifier, motor, or cabling. Because the Z-axis often carries the weight of a spindle or heavy tooling, this error can also be triggered by mechanical binding or counterweight failure. Understanding the 414 Alarm Signal On the control screen, check Diagnostic Parameters 200