... motor driving performance 3.Abundant application functions and design .... InstructionGoodrive300 series inverter is a new type of high-performance vector control ... advanced open-loop vector control: 0.25Hz/150% starting torque, 1:200 speed ratio.3.Abundant application functions and designa. ... Mine,Machines Tools,Textiles,Oil,Other Machineries. GD300 Series High Performance Vector Control Inverter