Fanuc 414 Servo Alarm Z Axis Detect Error Jun 2026

Disconnect it and check for the presence of coolant or moisture.

This alarm is notorious among maintenance technicians and machinists. It is a "hard alarm," meaning the control has detected a fatal electrical or mechanical fault, not just a software glitch. If you ignore it or simply clear it without diagnosis, it will return immediately. fanuc 414 servo alarm z axis detect error

Clean the pins with electrical contact cleaner, blow dry with compressed air, and reseat securely. Step 4: Perform the "Swap Test" (For Multi-Axis Drives) Disconnect it and check for the presence of

To resolve a 414 alarm, technicians generally use a process of elimination: If you ignore it or simply clear it

Follow this structured troubleshooting sequence to isolate the exact component failure without replacing expensive parts unnecessarily. Step 1: Power Down and Perform Visual Inspection

Swap the feedback cables for the X and Z axes at the amplifier side. Power on the machine carefully.

A on the Z-axis is a high-current detection error, often described as a "check engine light" for your digital servo system. It indicates that the CNC has detected an abnormal current flow in the Z-axis servo amplifier, motor, or cabling. Review of Causes & Symptoms