Disconnect the Z-axis motor power leads (U, V, W) from the amplifier.
Contamination in the Z-axis motor connectors or cables is a common culprit for short circuits.
To help tailor this guide further, what is the (e.g., 0i-MC, 16i, 21i)? Also, please share any specific codes displaying on your servo amplifier's physical LED display or if you noticed any unusual mechanical noise right before the alarm occurred. Share public link fanuc 414 servo alarm z axis detect error repack
A Fanuc 414 Servo Alarm (Z Axis Detect Error) is a high-current detection fault indicating abnormal current flow in the Z-axis. To troubleshoot or "repack" (systematically address) this error, you must determine if the fault lies in the servo amplifier, the motor, or the cabling.
Insulation breakdown in the motor windings or Z-axis power cables, frequently caused by coolant ingress into connectors. Mechanical Overload: Disconnect the Z-axis motor power leads (U, V,
In repack applications, intermittent 414 errors are often fixed by simply replacing the Z-axis encoder cable.
Once you have identified the source, use the following fixes: Also, please share any specific codes displaying on
Check Bit #6 (OFS) , which indicates an A/D converter or current offset error in the amplifier. Drafted Troubleshooting Post