Exchange frequency conversion elevator control system design
Abstract: The elevator took the modern high-rise construction the vertical transportation vehicle, with people's life close correlation, along with the people to elevator request the and so on movement security, effectiveness, comfortableness unceasing enhancement, the elevator obtained the fast development. It drove the technology already to develop the frequency modulation accent to press the velocity modulation, its logical control also replaced the original black-white control by PLC.
The elevator has used the PLC control, with the software realization to the elevator movement automatic control, the reliability greatly enhances. The control system structure is simple, the outside plant simplifies, but conveniently increases or the change control function, also may carry on the breakdown automatic detection with to report to the police the demonstration, enhances the movement security, and is advantageous for the overhaul. But the electric motor exchange frequency conversion v
elocity modulation technology is now the electricity saving, the improvement technical process improves the product quality, the improvement environment, the impetus technology advancement one main method. The frequency conversion velocity modulation by its outstanding velocity modulation performance and the braking quality, the high efficiency, the power factor and the electricity saving effect, the widespread applicable scope and other many merits makes up the domestic grandfather to think most has the development future the velocity modulation way. Therefore, the PLC control technology adds the frequency conversion velocity modulation technology to become the modern elevator profession a hot spot.
This design bases on the general frequency changer foundation, uses PLC to carry on the control to the elevator, through the reasonable choice and the design, raised the elevator control level, and improved the elevator movement comfortable feeling, enabled the elevator to achieve the more ideal control effect.
Key word: PLC control;frequency conversion speed;elevator;comfortable feeling