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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

SV0307

APC ALARM: MOVEMENT EXCESS ERROR

Fanuc · Alpha i Series Servo Amplifier

What does SV0307 mean?

The machine moved excessively, leading to an inability to obtain the correct machine position. This suggests unexpected or uncontrolled motion of the axis.

Common Causes

  • Machine has moved beyond expected limits during an operation.
  • External force applied to the machine axis.
  • Servo control loop is unstable, causing oscillation.
  • Incorrect limit switch configuration or activation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify actual axis position against expected position limits.

  2. 2

    Inspect machine for any signs of collision or external impact.

  3. 3

    Review servo tuning parameters (e.g., P3-XX) for stability.

  4. 4

    Confirm limit switch settings and functionality.

Browse all codes in this manual (101)
Verified technical data. Last updated: April 2026

Related Faults

0233Velocity Pulse Count Exceeded0243Position Pulse Count Exceeded0434Velocity Loop Integral Gain Overflow
Source: Fanuc Alpha i Series Servo Amplifier
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