Issue:
What can be done when VFDs are causing bearing failures?
Product line:
Altivar All
Environment:
All models, all serial numbers
What can be done when VFDs are causing bearing failures?
Product line:
Altivar All
Environment:
All models, all serial numbers
Cause:
Shaft currents causing the motor bearings to weld.
Resolution:
This phenomena is inherent to VFD use. On the VFD, try lowering the switching frequency to reduce effects but not resolve it.
Other suggestions include:
installing shaft grounding systems
installing insulated bearings
adding a dv/dt filter to couple less voltage to the rotor
adding a common mode filter
verify good grounding from the motor directly back to the VFD
Shaft currents causing the motor bearings to weld.
Resolution:
This phenomena is inherent to VFD use. On the VFD, try lowering the switching frequency to reduce effects but not resolve it.
Other suggestions include:
installing shaft grounding systems
installing insulated bearings
adding a dv/dt filter to couple less voltage to the rotor
adding a common mode filter
verify good grounding from the motor directly back to the VFD
Gepubliceerd voor: Schneider Electric Belgium
Hulp nodig?
Selecteer zelf het juiste product
Vind snel en eenvoudig de juiste producten en toebehoren voor uw toepassingen.
Offerte aanvragen
Dien uw aanvraag online in en een expert zal contact met u opnemen.
Verkooppunten
Vind eenvoudig de dichtstbijzijnde distributeur van Schneider Electric op uw locatie.
Help Center
Vind de antwoorden die u nodig heeft via bladeren door veelgestelde vragen over onderwerpen.
