Compared with traditional control methods, building elevators using frequency converter control can not only avoid the phenomenon of "hook slipping" caused by insufficient output torque of the motor during starting and stopping, but also greatly reduce the impact between mechanical systems, and improve the smoothness and work efficiency during operation. This article takes a building elevator controlled by Dongli Kechuang CT200 frequency converter as an example, and analyzes in detail the control principle and electrical system of the building elevator.
Keywords: Building elevators, frequency converters, impact stability, efficiency