Weg variable frequency drives are designed to control the speed of AC induction motors in pumps, compressors, fans and load-lifting machines, without affecting the electric consumption torque, impedance and magnetic flux of the motor. These VFD drives feature dual DC bus chokes to reduce harmonics and therefore eliminate the requirement of external line reactors. To measure fluid flow and pressure, these drives further come equipped with an integrated power supply that allows connectivity with external transducers. The Vectrue technology of these Weg VFD drives provides four control modes in a single drive - linear / adjustable V/F, VVW (voltage vector WEG), field-oriented sensorless vector and encoder-equipped vector configurations. Selected models also have an Optimal Braking facility for delivering the rated high-performance torque by handling a large amount of energy without the use of additional resistors.