VFD on motor with higher HP
VFD on motor with higher HP
(OP)
A friend of mine wants to use an AC TECH SM320 which is a 3HP VFD on a 5HP motor that is rated for VFD use. The application uses less than 1.5HP max and does not start under load. I can't think of any real problem. Anything to watch out for before he orders this drive?





RE: VFD on motor with higher HP
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RE: VFD on motor with higher HP
If it is a vector drive, the reduction will happen automatically. The reason is that the resulting vector (in most drives) is adapted to real torque need and that mostly also means that magnetising current also is reduced when the load is lower than motor rating.