Fanuc 414 Servo Alarm Z Axis Detect Error

Clean contaminated connectors using a specialized electrical contact cleaner. Allow them to dry completely before reassembling.

Indicates an internal short, module failure, or high current loop error.

The amplifier itself is not processing the signal from the encoder correctly.

Overcurrent/Overload Alarm. The motor is physically strained or jammed. Reading Diagnostic Parameter 204 (OFS) fanuc 414 servo alarm z axis detect error

What is showing on the LED display of the servo drive itself?

Keep electrical cabinet filters clean. Overheating reduces the lifespan of the current detection components inside Fanuc drives. To help narrow down the diagnosis, let me know: The amplifier itself is not processing the signal

A Z-axis detect error typically stems from one of four major areas: 1. Contaminated or Damaged Feedback Cables

Follow this logical progression to isolate and fix the issue:

Once you clear the 414 alarm and the Z-axis moves again, implement these habits: Reading Diagnostic Parameter 204 (OFS) | Alarm Code

A 414 alarm is typically secondary to a hardware alarm displayed on the . On the amplifier's LED display, you will likely see a status code: Alarm 8 : First axis (L) . Alarm 9 : Second axis (M) . Alarm A : Third axis (N) . Common technical causes include:

I can provide specific wire diagrams or parameter adjustment steps based on those details. Share public link

Verify that the 24VDC mechanical brake releases when the axis is enabled. A sticky or burned-out brake coil keeps the brake engaged, causing the motor to stall and trip the alarm. 2. Inspect Cable Integrity and Connection Points