0696

Velocity Feed-Forward Coefficient Overflow

Fanuc · Alpha i Series Servo Amplifier

What does 0696 mean?

This invalid parameter setting alarm indicates that the internal calculation value of the velocity feed-forward coefficient has overflowed. This typically occurs when the coefficient setting is too high for the system's internal processing limits.

Common Causes

  • Velocity feed-forward coefficient calculation has overflowed.
  • Control struggles to anticipate velocity changes.
  • Inappropriate tuning of velocity feed-forward parameters (P04-17).
  • Mechanical inertia not accurately accounted for.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Decrease the velocity feed-forward coefficient to prevent overflow.

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Verified technical data. Last updated: March 2026

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Source: Fanuc Alpha i Series Servo Amplifier