GE 8502-BI-DP Bus interface module

GE 8502-BI-DP Bus interface module

1) Automatic control system for frequency conversion transformation of belt conveyor
The belt conveyor control system is controlled by electric cabinet or PLC in central control room. 8502-BI-DP is equipped with an upper monitoring computer in the central control room, uses UP10 inverter configuration software to monitor the belt conveyor in real time, and uses the historical data recording function of the software to record historical data and alarm data.
The PLC control system completes the start and stop control of the frequency converter. The 8502-BI-DP realizes the constant speed start and synchronous control of each motor, and detects and protects the motor from overcurrent, overload, short circuit, and open circuit. At the same time, it also realizes the belt deviation detection, belt coal stacking and other protection. The system uses RS-485 as the serial communication interface. The 8502-BI-DP is also equipped with a coal flow sensor, which can automatically adjust the belt speed according to the coal flow size.
(2) Electrical control of frequency conversion transformation of belt conveyor
After the frequency conversion transformation of the belt conveyor, the original power-frequency starting electric cabinet is reserved as the power-frequency bypass, 8502-BI-DP to prevent the failure of the frequency converter from affecting the production. If the frequency converter fails, the original power-frequency starting cabinet can be used for emergency operation to quickly switch to the direct starting state of the motor. That is, the added frequency conversion circuit is connected in parallel with the original power frequency circuit to form a dual-loop convertible control system.

With the integration and development of IT and OT technology, the industrial Internet of Things has become the trend of the times. The related technologies of PLC communication and the Internet of Things will be popular in the future. Common PLC controller communication includes communication between PLC controllers and communication between PLC controllers and other intelligent devices. With the development of industrial control automation, all PLC controller manufacturers attach great importance to the communication function of PLC controllers and have launched their own network systems. The new PLC controller has a communication interface, which is very convenient for communication. Miniaturization and integration will be higher and higher. With the requirements of the market for miniaturization and integration, PLC technology will be more integrated into industrial, automotive, communications and other products. PLC products are characterized by control and data processing. While meeting the functions, the process requirements are also more detailed. With the development of intelligent factories and the Internet of Things, new requirements have been put forward for the technical development of PLC in the fields of joint control of factory equipment, data interaction between PLC and mainframe and other intelligent products, and big data application. This is a new opportunity and a huge challenge. This requires that PLC products have strong environmental adaptability, stability and reliability, can easily access various networks while maintaining a high cost performance ratio, and give full play to the role of PLC products in data acquisition and data interaction.

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