What can cause an output phase fault (OPF) on an ATV312 or ATV31?
Issue:
OPF on Altivar 31/312 Drives
Product Line:
ATV312
ATV31
Environment:
All models and serial numbers
Cause:
This fault occurs when the drive has been commanded to run the motor but no or very little output current is detected by the drive.
Resolution:
Verify that the all three motor leads are properly connected to the drive. Determine if there is a disconnect at the motor that could be open or a contactor between the drive and the motor that has not closed. Loss of one leg or a significant imbalance of current between legs will cause the drive to signal output phase loss. The motor and motor leads should be Megger tested at 1,000 volts.
In some applications small motors are used and their current draw is below what the drive considers normal based on the motor information programmed in the drive. The output phase loss detection can be disabled if there is no impact to the application.
OPF on Altivar 31/312 Drives
Product Line:
ATV312
ATV31
Environment:
All models and serial numbers
Cause:
This fault occurs when the drive has been commanded to run the motor but no or very little output current is detected by the drive.
Resolution:
Verify that the all three motor leads are properly connected to the drive. Determine if there is a disconnect at the motor that could be open or a contactor between the drive and the motor that has not closed. Loss of one leg or a significant imbalance of current between legs will cause the drive to signal output phase loss. The motor and motor leads should be Megger tested at 1,000 volts.
In some applications small motors are used and their current draw is below what the drive considers normal based on the motor information programmed in the drive. The output phase loss detection can be disabled if there is no impact to the application.
Publié pour: Schneider Electric Belgium
Besoin d'aide ?
Sélectionnez le bon produit
Trouvez rapidement et facilement les produits et accessoires adaptés à vos applications.
Obtenir un devis
Effectuez une demande de renseignements en ligne et un expert vous contactera.
Où acheter ?
Trouvez facilement le distributeur Schneider Electric local le plus proche.
Centre d'aide
Trouvez des ressources de support pour tous vos besoins, en un seul endroit.