0444

Velocity Loop Proportional Gain Overflow

Fanuc · αi Series Servo Amplifier

What does 0444 mean?

This invalid parameter setting alarm indicates that the internal calculation value of the velocity loop proportional gain has overflowed. This typically occurs when the parameter setting for the proportional gain is excessively high, leading to calculation errors.

Repair Steps

  1. 1

    Use the function for changing the internal format of the velocity loop proportional gain to prevent overflow.

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