Abstract
In recent years, With the number of private cars increased dramatically, road congestion increased dramatically,more and more people select a city bus as their travel tools .Urban public transport in urban transport in China occupy an important position , It has urban residents with the production, life and other activities closely related to the system , and the bus air-conditioning systems have a direct bearing on the passengers in comfort. With the development of domestic industries bus, the demand of air-conditioning systems is increasing. As air-conditioning systems core components control, the performance of the controller also has a higher demand. Its work requires not only reliable, but also for the aesthetic appearance, HMI friendly.Modbus protocol is used in the electronic controller of a common language. With this agreement, each controller, the controller through the network (such as Ethernet) and other communication devices can be. It has become a common industry standard. With it, the production of different vendors can not even control equipment into the industrial network, centralized control. AD200A / B Series General Electric will drive a powerful general inverter applications, the use of the flexibility and convenience of high-performance servo drives (high-precision, high-speed dynamic response, high Guozainengli), a powerful position and torque control capabilities The depth of integration, it has frequently than the servo drive more wide-ranging applications and more flexible control of the degree of freedom. GM has also solved the inverter due to low precision speed, torque caused by the slow response to the application of obstacles.
Keywords:Controller,modbus agreement,AD200A / B Series Inverter