Leeson Electric Corporation: drive
Speedmaster® SM basic drives are available in speeds up to 3 hp in versions for single- or three-phase input. Other features include slip compensation for 1% speed regulation; multiple speed presets; adjustable carrier frequency to 10 KHz; and an eight-event fault history. The drives also include a two-digit LED and can be programmed with buttons on the drive face or offline, using the removable electronic programming module.
—Leeson Electric Corporation