PLC electric control system
- Beijing CIMC smart Cold Technology Co.,Ltd
- product brand:linke
- Messestand Nr.：E5G10
- product specification:
- product category:制冷设备（英）-制冷系统设备和配件-
- product introduction:Support customized products including the full range of Siemens, mainly S7-200Smart, S7-1200, S7-1500 and other models. The system design scheme is as follows:
(1) The screw host has its own control system to control the operation of the host and the circulating water pump of the host and the cold storage tank according to the independently set cold water temperature (designed by the equipment manufacturer), and reserve RS485 interface or TCP/IP protocol. Communication and connection with the warehouse temperature and humidity control cabinet through the corresponding connection cable. In order to be operated uniformly by the temperature and humidity control cabinet of the warehouse, reducing the operating procedures and operating time.
(2) Warehouse temperature and humidity control cabinet a. Collect temperature and humidity data of the environment in the warehouse. High-precision temperature and humidity sensors are installed in each warehouse, aisle and corresponding positions, using RS485 standard communication protocol, and shielded cables are used to communicate with the warehouse temperature and humidity. The PLC communication port link in the control cabinet. It also displays the real-time temperature and humidity data in the warehouse with the operation screen, and serves as the control basis for the cooler and the electric two-way valve in the warehouse. b. Control the operation status of the air cooler and the electric two-way valve in the warehouse. By comparing the real-time temperature and humidity data collected by temperature and humidity with the set temperature and humidity control data, control the operation of the air cooler and the electric two-way valve, and display it on the operating screen Show running status. c. Control the operating status of the circulating water pump in the cold storage water tank and the pipeline in the warehouse. Control the operating status of the circulating water pump in the cold storage water tank and the pipeline in the warehouse, and control the cold energy exchange between the cold storage water tank and the warehouse. When there is no cooling fan in the warehouse, the operation will be stopped, which is economical and energy-saving.
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