mac VVVF drive ensures mac Passenger Elevator operate more smoothly. Nice noise control brings passenger peaceful riding experience. The start, acceleration, brake curves are designed according to the ergonomic theory in order to get the finest coziness. It is a genuine current vector control variable frequency drive system. The permanent magnetic synchronous drive saves up to 48% in energy consumption. The professional intelligent group control management system can control 8 elevators. The advanced artificial intelligent and traffic flow database technology increases greatly the traffic efficiency thus minimizes the waiting time.