The motor is a Leeson catalog number G120088.00, 2 pole 3600 rpm fully enclosed fan cooled. The drive is a Hitachi SJ200 sensorless vector drive.
So If I understand correctly, the recommendation is to select a belt setting that produces the slowest usable speed at around 25-30 cycles and overspeeding the motor to achieve the top RPM range? I called Leeson and they said that this motor is designed for VFD use and is normally usable from 6 to 60 cycles with no danger of overheating. They also reccommended that the upper limit be kept to about 75 cycles. |