Four-storey Elevator PLC Control
ABSTRACT
In the modern social and economic activities, computer technology,
automatic control technology and power electronic technology has been rapid
development, the lift has become a symbol of urban material. Especially in the
high-rise building, the elevator is not a lack of vertical transportation equipment.
With the rapid development of high-rise buildings of today, the lift industry also
has entered a new period of development, elevator control technology has been
developed to the FM speed regulator, the logic control by the PLC to replace the
original relay control, many of its functions traditional relay control system can
not be achieved.
The design for the status quo of China's elevator industry will be a
programmable logic controller (PLC) used for four-storey elevator control logic,
through the rational selection and design, not only to improve the reliability of
the elevator, maintainability, and flexibility, while extending the of life and
shorten the development cycle of the elevator and the elevator control to raise
the level of the elevator operation to improve the comfort, so that the lift to
reach a more satisfactory control effect. In this paper, the design of the elevator
by the elevator when compared with the traditional, in the run with good comfort,
in life can save energy, and achieved good economic and social benefits to
achieve the desired purpose. The elevator control system has a mean layer, the
Office of calls to the layer selected, manual and automatic functions with a set
of features to control the election.
In introducing the basic structure of the lift on the basis of the depth
analysis of the working principle of the elevator, on the merits and
characteristics of PLC, the focus of an analysis of the lift hardware design and
software design, research and PLC based control system designed to lift the
achievement of the program, Finally, the study of this thesis are summarized and
prospects.
Keywords elevator PLC control VVVF inverter
