OVC

OVC Alarm

Fanuc · αi Series Servo Amplifier

What does OVC mean?

This alarm is issued when a specific condition related to the OVC bit is detected. It is generally associated with a temperature rise in the motor or amplifier, indicating a potential for overheating under current operating conditions or parameter settings.

Repair Steps

  1. 1

    Verify that standard values are set for parameters No. 1877, No. 1878, No. 1893, No. 2062, No. 2063, and No. 2065.

  2. 2

    If parameter settings are confirmed correct, increase the acceleration/deceleration time constant.

  3. 3

    Increase the programmed stop time period to help suppress temperature rise.

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Verified technical data. Last updated: March 2026
Source: Fanuc αi Series Servo Amplifier
Fanuc Error OVC: OVC Alarm — Troubleshooting Guide | ErrorLib