The smart thermostat, made Wiser.Learn more
...See what we've been doing in some of our major markets.Find your Location
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Everything you need to know about our IoT technology backbone.Learn more
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
What are possible causes for over braking faults OBF in the ATV61 or ATV71 drives?
Braking too sudden or driving load
If the drive trips while running, monitor for voltage surges and spikes, you may need to install a line reactor or a surge suppressor.
If the drive is tripping while decelerating, increase deceleration time. You may need to add a Dynamic Braking resistor.
If the drive trips on a Start command, check to see that the Catch on the Fly parameter is enabled in the Fault Management menu (if application allows). Also verify wiring between drive and motor as well as motor connections.
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!