LEESON FHP Series Chassis Mount Variable Speed Drives - Manual (Page 5)

iii General Information
Many 3-phase inverter manufacturers claim that they can
run single-phase motors effectively. This is normally
accomplished by wiring only 2 phases; however, this
method may cause instabilities due to the lack of feedback
from one of the motor connections. Furthermore, motor
torque will be reduced considerably because the phases
are 120° apart. Although the FHP uses this method of
connection, its fundamental design enables it to operate
efficiently under these conditions.
The FHP series features solid-state reversing with
adjustable acceleration and deceleration. The FHP may
also interface with motor thermal protection through the
enable circuit.