外文文獻翻譯plc控制下的電梯系統(tǒng)-在線瀏覽
2025-02-08 05:20本頁面
【正文】 ing in elevator startup and steady speed operation, low speed winding for braking and elevator maintenance. 80 s, VVVF inverter control system of variable pressure points to e out. It adopts ac motor drive, but can reach the level of dc motor. Now control speed has up to 6 meters per second. Her small volume, light weight, high efficiency and saving energy, including the previous elevator almost all advantages, is the latest elevator drag system. The elevator in vertical operation, QiDianZhan also have the terminal, for three floors above the elevator building, QiDianZhan and between the terminal is not stop, QiDianZhan in the first floor, the tallest building in the terminal. In the first floor of the QiDianZhan called base station, QiDianZhan and terminal called on both ends of the stand, stand directly at both ends by called standing among. The hall with each call box, box set on a call with personnel for the elevator button or contact with the call of the button, and general elevator at both ends of the standing on the call box set a button or touch knob, standing among the call of the box set the two button or touch the button, and the elevator is set up inside the car have (bulk elevator except) control box. Operation box set on a handle switch or layer stand the corresponding button or touch knob on the operation box button or contact the mand button button or touch buttons. The mand button or contact the electrical signals a button called external mands, inside the instructions of a button or touch knob signal called mands within. The mid 1980 s, touch button has been budge button replaced. As the elevator of the base outside the hall call box, in addition to set a call button or touch knob outside, still set a key switch to shut off the elevator, the driver or management personnel to open to the base station, with special twist the key can be key switch, the elevator door is closed after the hall, automatically cut off the elevator control power or power power supply. 4. PLC control of elevator design With the continuous development of city construction, high building is on the increase, the elevator in the national economy and life in a wide range of a
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