Yung economic electromechanical during multifunctional packaging machine converter repair tools in addition to the common multimeter, oscilloscope, logic analyzer, signal generator and other auxiliary maintenance equipment, the most important thing is inseparable from the engineers a wealth of experience in maintenance techniques. A common multifunctional packaging machine converter repair features: the inverter voltage space vector / SVPWM based on the overall innate effect of the three-phase waveforms for conditions, to Channel Pro motor air gap of the ideal circular rotating field track for the purpose of, once born three-phase , modulation waveform to cut polygon forced Pro-round control. Then improved by practice use, that is, the introduction of the frequency compensation can eliminate the error of speed control; estimation of the magnitude of the flux through feedback to eliminate the impact of low speed stator resistance; the output voltage, current, closed-loop, advances in dynamic accuracy and not arbitrary degree. Converter repair of multifunction packaging machine control mode: 1, constant torque characteristics: general use curves like straight running conveyor belt, and speed has nothing to do constant torque use spaces; 2, decreasing torque characteristics: like a fan, water pump as speed was 2 power relationship between the load occasions, the use of such curves; 3, high starting torque: the wiring between the inverter and the motor a longer interval (about 100m), requiring larger output torque (Lift startup load) AC reactor is inserted in the input or output of the inverter, with the motor running less than the maximum combined motor; 4, constant output power operation: the curve of its run at frequencies above 50Hz, 50Hz constant voltage. Capacity economic electromechanical multifunctional packaging machine the converter repair business is built on the basis of mutual trust with our customers, and strive for technical excellence, and has always been safe and reliable products for the repair is completed. Yung economic converter repair customers reliable choice.