Elevator as a vertical means of transportation, has been fully penetrated into people's lives, especially in high-rise buildings, the elevator plays an irreplaceable role, is a necessary means of transportation for people. With the development of society, the design requirements of elevators are constantly improving, not only related to mechanical transmission, electrical control, electronic technology and civil engineering, but also related to the reliability, comfort, environmental protection, aesthetics and other issues of elevators. For the modern elevator, it should have a high degree of security and continue to develop in the direction of energy saving, group control, networking, information technology and so on. With the rapid development of electronic technology and microcomputer technology, PLC technology and frequency conversion technology have replaced the traditional relay manufacturing system and become the mainstream of elevator control system because of their obvious advantages in control.<br>With the continuous improvement of people's living standards, people are particularly concerned about the health and safety of living environment. With the rapid development of the construction industry, high-rise buildings continue to appear, the existing elevator control system is constantly updated, and a large number of old buildings are required to install elevators. This design deeply analyzes how to ensure the safety of elevators when starting, braking and accelerating Elevator speed transition smooth operation, creatively put forward to ensure that passengers have no obvious sense of weightlessness, so that passengers can achieve a very high sense of comfort experience, this design uses Mitsubishi PLC frequency, voltage and speed control elevator control system, to provide a safe, efficient, environmental protection elevator control system design.<br>
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