{}

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric corporate Website

Search FAQs
What causes a buFo [DB unit op. circuit] fault on an ATV340 and how do I correct it?
Issue:
Customer is experiencing buFo [DB unit op. circuit] fault on an ATV340 series drives.

Product line:
ATV340

Environment:
External Braking resistor is in use.

Cause:
 Open-circuit from braking circuit.
 Braking resistor not connected.

Resolution:
 Verify the wiring of the braking resistor.
 Verify that the braking resistor ohmic value is not too high.

Schneider Electric Global

Explore more
Range:
Articles that might be helpful Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range: