: High Current Alarm. Indicates a short circuit or an extreme current spike in the amplifier power module.
The diagnostic registers provide the specific fault bit that triggered the alarm. For Z-axis faults, the relevant registers are: fanuc 414 servo alarm z axis detect error repack
When you say you disconnected the X axis from the drive, the alarm did not occur, did you disconnect the motor power cable (U,V,W) Practical Machinist Fanuc 414 Servo Alarm Z Axis CNC Vertical machine : High Current Alarm
On a FANUC-controlled CNC machine (e.g., a vertical machining center), alarm appears on the screen: For Z-axis faults, the relevant registers are: When
Overcurrent alarm (mechanical binding or motor overload).
By following the steps outlined in this article, you should be able to troubleshoot and resolve the Fanuc 414 servo alarm on the Z-axis, getting your CNC machine back to optimal performance.