: High current on the M-axis (usually the second axis). Alarm A : High current on the N-axis. Diagnostic Steps
If the amplifier or motor was replaced, the CNC may need to re-initialize the servo parameters.
Because the Z-axis often handles heavy vertical loads, spindle weights, and constant gravity stresses, it is highly prone to high current spikes or mechanical resistance. Primary Symptoms fanuc 414 servo alarm z axis detect error repack
Before opening up the electrical cabinet, check the diagnostic bits on your Fanuc screen: Press the key on your MDI panel. Select the DIAGN (Diagnostic) softkey. Type 200 or 204 and press INPUT .
To look under the hood of this alarm, you must access the machine's diagnostic parameters: : High current on the M-axis (usually the second axis)
If the alarm persists even with the motor leads disconnected, the or its internal Intelligent Power Module (IPM) is likely faulty and requires replacement or repair.
Troubleshooting and Resolving the Fanuc 414 Servo Alarm: Z-Axis Detect Error Because the Z-axis often handles heavy vertical loads,
The Z-axis ball screw is a critical component of the servo system, and repacking it can be a complex process. To repack the Z-axis ball screw: