... 4kw 3 phase ac input and output frequency converter with vector control Introduction of SVF-G7 Series High-performance Vector ... , such as fan, water pump, engraving machine, injection molding machine etc. (2) Open-loop vector control: Steady speed with high precision, ... and handling equipment, rolling mill and other loads. (3) Torque control: Fast torque response, <20ms, precision torque: <5%, applied ...