use for constant torque loads ( such as hard starting: Air compressors,HVAC units)and
variable torque loads It can be used as a motor speed control and a phase converter.
The inpute for this VFD is 1 or 3 phase as you like. for the control system
and performace excellently.
R.S.T:Input terminal of AC line power. (220V class for both single/three phase, single phase connected to any two phases) U.V.W:Output terminal of the inverter P+.PR:Connector for braking resistor. E:Ground terminal: the third method of grounding for 220V.