SRVO-072

Pulsecoder Malfunction

Fanuc · R-30iB Mate + Mate Plus Robot

What does SRVO-072 mean?

This alarm indicates that the Pulsecoder is likely abnormal, suggesting a internal malfunction or failure of the feedback device itself. This can lead to incorrect position and speed feedback.

Repair Steps

  1. 1

    Replace the Pulsecoder.

  2. 2

    Remaster the robot after Pulsecoder replacement.

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Verified technical data. Last updated: March 2026
Source: Fanuc R-30iB Mate + Mate Plus Robot
Fanuc Error SRVO-072: Pulsecoder Malfunction — Troubleshooting Guide | ErrorLib