0843

Flexible Feed Gear Numerator Error

Fanuc · αi Series Servo Amplifier

What does 0843 mean?

This invalid parameter setting alarm occurs when a positive value is not set as the flexible feed gear numerator, or when the numerator's value is greater than the denominator. This applies to systems other than parallel type separate detectors and indicates an invalid gear ratio configuration.

Repair Steps

  1. 1

    Set a positive value for the flexible feed gear numerator.

  2. 2

    Correct the parameter so that the numerator of the feed gear is less than or equal to the denominator.

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Verified technical data. Last updated: March 2026
Source: Fanuc αi Series Servo Amplifier