Issue:
Disconnect on the output of a drive?
Product Line:
All open style and enclosed Altivar drives.
Environment:
All models, all Serial numbers
Cause:
Information not available in existing literature.
Resolution:
A disconnect can be used between the drive and the motor. This is general practice to assure that power does not reach the motor during maintenance and other non-operating times.
Note that the disconnect should not be opened or closed while the VFD is running (outputting voltage from T1,T2,T3). This is sometimes referred to as "slamming the motor." This can damage the output IGBT components of the drive and such damage is not covered under warranty.
We recommend adding a fast-acting auxiliary contact on the disconnect that will trigger a freewheel stop on the drive before the main 3 phase contacts open.
Refer to your drive's Programming Manual for instructions on programming a logic/digital input as freewheel stop.
Disconnect on the output of a drive?
Product Line:
All open style and enclosed Altivar drives.
Environment:
All models, all Serial numbers
Cause:
Information not available in existing literature.
Resolution:
A disconnect can be used between the drive and the motor. This is general practice to assure that power does not reach the motor during maintenance and other non-operating times.
Note that the disconnect should not be opened or closed while the VFD is running (outputting voltage from T1,T2,T3). This is sometimes referred to as "slamming the motor." This can damage the output IGBT components of the drive and such damage is not covered under warranty.
We recommend adding a fast-acting auxiliary contact on the disconnect that will trigger a freewheel stop on the drive before the main 3 phase contacts open.
Refer to your drive's Programming Manual for instructions on programming a logic/digital input as freewheel stop.
Опубліковано для: Schneider Electric Україна
Потрібна допомога?
Інструмент вибору продукту
Швидко та легко знаходьте потрібні продукти й допоміжне обладнання для своїх завдань.
Розрахувати вартість
Ставте свої запитання щодо продажів онлайн, і з вами зв’яжеться фахівець
Де придбати?
Зручний пошук найближчого дистриб’ютора, магазина або спеціалізованого партнера Schneider Electric у вашому регіоні.
Довідковий центр
Знайдіть усі необхідні ресурси для підтримки в одному місці.
