Fanuc 414 Servo Alarm Z Axis Detect Error Free | Hot

The amplifier’s internal current sensors, power transistors, or control board may fail. A bad amplifier may not properly commutate the motor, causing erratic movement and deviation. Look for red LEDs on the amplifier (e.g., LED 4 or 5 on a FANUC Alpha i series).

Incorrect values in servo parameters (e.g., – CMR, Pr. 2024 – feed-forward gain, or Pr. 2084 – scale factor) can cause the CNC to misinterpret feedback. fanuc 414 servo alarm z axis detect error

If you can access the motor, use the (usually a 2-pin connector). Apply 90-110 VDC to release the brake. Then try to rotate the motor fan cover by hand. If you cannot turn it, the mechanical brake is stuck or the ballscrew is locked. The amplifier’s internal current sensors