What is BUF (Braking Unit Fault) in Altivar 71 Drive.

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This fault appears only for the drives > 90kW.

This fault appears when there is a short-circuit on the output of the braking transistor (desaturation of the braking IGBT).

Refer to attached file for more detail.

Released for:Schneider Electric India

Attachment(s)

ATV71_BUF fault.pdf

[104.41 KB]

Published on:26/12/2012Last Modified on:28/4/2025

Range:

Altivar 71

Range:

Altivar 71