Contents1 Wiring2 Diagram3 Installation dimension4 Add Modbus-RTU5 Manual A variable frequency drive (VFD) is an electronic device that is used to control the speed and torque of an AC electric motor. It does this by adjusting the frequency and voltage of the power supplied to the motor. A VFD that has a single-phase input can … Continue reading T13-400W-12-H/T13-750W-12H