基于plc的電梯控制系統(tǒng)設(shè)計中英文翻譯部分(編輯修改稿)
2025-01-09 04:36 本頁面
【文章內(nèi)容簡介】 ed windings for braking and the maintenance of elevators. The early 80s, VVVF inverter controlled variable lift system available. It uses AC motor drivers, are able to reach the level of DC motor, control the speed of the current has reached 6 河南理工大學(xué)畢業(yè)設(shè)計（論文）說明書 4 m/sec. Its small size, light weight, high efficiency, energy saving, inc1uding the past almost all the advantages of the lift. Is the latest elevator drive system Operation in vertical lift, there is also the starting point of the terminus station. For more than threestory elevator buildings, the starting point of the terminal stations and stops between the had not, the starting point for these stations at the first floor of the terminal located at the highest floor. Starting point in the first floor of the station known as base stations, known as the starting point at both ends of the terminal stations and stations at both ends of intermediate stops between stations. Outside the station has a call box, box set are used by staff for elevator call button or touch the call button, the general ends of the lift stations in the call box on the Settings button or touch of a button. 1iddle layer of the station set up the call box button or touch button 2. No drivers for the control of elevators, at various stations are set up calls me on a button or touch button. Elevator car and the internal settings (except for debris elevator) to manipulate me. Control box switch on the handle or set up stations and the corresponding layer of buttons or touchbutton control box on the touchcontrol button or mand button or touch the city button. Outside the mand button or touchbutton issue as the signal outside the mand signal, within the mand button or touchbutton issue within the signal as a mand signal. 80 In the mid20th century, the touch button has been replaced by microbutton. As the elevator call box outside the base station, in addition to set up a call button or touch button, but a1so set a key switch in order to work the elevator clearance. Drivers or management staff to open the elevator to the base station can wriggle through a dedicated key to the key switch. Close the elevator in place to autocratically cut off the elevator control power supply or power supply. 4. PLC Control Elevator Design. With the continuous development of urban construction, the increasing highrise buildings, elevators and life in the national economy has a broad application. Elevator highrise buildings as a means of transport in the vertical run of daily life have been inextricably linked with people. In fact the lift is based on external call control signals, as well as the laws of their own, such as running, and the cal1 is random, the lift is actually a manmachine interactive control system, simple to use control or logic control order can not meet the control requirement, and therefore, elevator control system uses a random control 河南理工大學(xué)畢業(yè)設(shè)計（論文）說明書 5 logic. Elevator control is current1y generally used in two ways, first, the use of puter as a signal control unit, the pletion of the lift signal acquisition, operation and function of the se, to achieve the lift and set the autocratic scheduling function to run the election, drag the control from inverter to plete。 the second control mode with programmable logic controller (PLC) to replace the puter control signal sets the election. From the control and performance, these two types of methods and there is no significant difference. Most of
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