FANUC codes
AxisMD

axismd.ai

FANUC Controller

Servo/Axis · Advanced · 1-4 hours depending on root cause

Alarm 367

Fanuc Alarm 367 - n AXIS: COUNT MISS (INT)

Alarm 367 COUNT MISS (INT) indicates the servo amplifier has detected a discrepancy between commanded pulse counts and actual feedback from the built-in pulse coder (serial encoder) on the specified axis. This is typically caused by encoder signal degradation, loose connections, excessive mechanical load causing position deviation, or amplifier/motor failure.

FANUCServo/AxisAdvanced1-4 hours depending on root cause

367

Fanuc Alarm 367 - n AXIS: COUNT MISS (INT)

SYSTEM ALARM 367

Fanuc alarm 367: SYSTEM ALARM 367. This alarm indicates a fault condition detected by the Fanuc control. Refer to the alarm number and name to identify the specific system or function involved.

Root Cause Summary

Alarm 367 COUNT MISS (INT) indicates the servo amplifier has detected a discrepancy between commanded pulse counts and actual feedback from the built-in pulse coder (serial encoder) on the specified axis. This is typically caused by encoder signal degradation, loose connections, excessive mechanical load causing position deviation, or amplifier/motor failure.

Causes and Fixes

  1. 1

    Power down the machine. Inspect the serial encoder cable (typically the smaller gauge cable alongside motor power cable) at both motor and amplifier ends for secure connection, bent pins, cable damage, or contamination.

    Ensure LOCK-OUT/TAG-OUT procedures before accessing connections

  2. 2

    Check encoder feedback on DIAGNOSIS screen: Navigate to SYSTEM > DIAGNOSIS, check diagnostic numbers D200-D207 (absolute position) and D300-D307 (relative position) for the affected axis. Verify position values are stable and increment smoothly during manual jog.

  3. 3

    Inspect encoder cable routing for proximity to power cables, inverters, or noise sources. Verify proper shielding continuity and grounding. Replace encoder cable if damage, excessive flexing, or degradation is visible.

  4. 4

    Check servo amplifier LED status. Amplifier should show normal green LED. Red or blinking LEDs indicate amplifier-side detection of encoder errors. Consult amplifier model-specific LED code chart (αi series, βi series, or αSV series).

DIY Feasiblemedium confidence

Call a technician if:

  • ·Encoder replacement required
  • ·Servo amplifier replacement needed
  • ·Mechanical coupling repairs beyond basic inspection

Prevention

  • Regular encoder cable inspection
  • Proper cable routing away from noise sources
  • Periodic coupling torque verification
  • Maintain parameter backups

Common Mistakes

  • Grounding encoder shield at both ends
  • Ignoring mechanical wear indicators
  • Incorrect encoder resolution parameters
  • Running encoder cables with power cables

Related Alarms

308310320330400

Seeing Multiple Alarms?

Seeing another alarm with this one? Enter the code.

Get machine-aware diagnosis

AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.

Start free

Was this guide helpful?

Always verify with your machine manual or a certified technician before performing service procedures.