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Abstract

Elevator, with the construction and development of high-rise building up a vertical transport. In modern society, the lift has been like a car, boat, become an indispensable means of transport humans. It has a variety of control methods, such as relay control, PLC control. PLC control elevator has the following characteristics: high reliability, PLC, the average time to failure (MTBF)

generally up to 3 to 5 million hours. But also in industrial environments to work reliably; programming simple, PLC programming language is the most common ladder diagram language. This image of visual programming language, easy to grasp, when the workflow needs to change, you can spot changes in procedures, convenient, and flexible; small size, compact structure, installation, and maintenance. This paper introduces a control VVVF elevator control system, by comparison with other elevator control system, obtained the superiority of their control, and gain a more detailed software and hardware design, software and hardware design for modular

design idea, and explains the control method is feasible.

Keywords: PLC; elevator; elevator control; converter; ladder

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