A specifically indicates an n-AXIS: PULSE MISS (INT) error . This occurs when the feedback system detects a pulse error originating from the built-in pulse coder (encoder) on a specific axis (where "n" is the axis number, like X, Y, or Z). What is Happening?
Troubleshooting Fanuc Alarm 366: SV Pulse Miss (Built-in) The (often displayed as SV0366 ) is a critical servo alarm indicating a "Pulse Miss" in the motor's built-in pulse coder. This occurs when the digital servo software detects that the encoder is losing data integrity—essentially "missing" pulses that are necessary to track the motor's exact position. What Causes Alarm 366? fanuc 366 alarm
For further technical support, you can consult professional repair resources like Tri Star CNC Services or the CNC Cookbook for a broader range of Fanuc fault codes. Fanuc Alarm Code List [ Definitive Guide ] - CNC Cookbook A specifically indicates an n-AXIS: PULSE MISS (INT) error
Here is a more detailed, step-by-step guide to troubleshooting the Fanuc 366 alarm: Troubleshooting Fanuc Alarm 366: SV Pulse Miss (Built-in)
to determine if the fault follows the hardware or remains with the cable/axis. Replace Encoder:
This alarm involves servo motors and high voltage.
Noise from nearby high-voltage lines or poor grounding can disrupt sensitive feedback data. Troubleshooting and Solutions Inspect Connections