The principle and characteristics of PLC control cabinet, electric cabinet manufacturers to solve your doubts
Release time:
2022-02-11
Electric cabinet manufacturers believe that with the implementation of sustainable development strategy, the application of frequency converter in PLC control cabinet has special significance. With the development of computer control technology, PLC control technology based on computer technology will replace the traditional relay control technology. The excellent performance of PLC makes the system based on PLC control economy stable and easy to maintain. It is the general trend of the water supply industry to realize various control and adjustment functions of non-negative pressure water supply equipment through PLC.
Electric cabinet manufacturers thinkWith the implementation of sustainable development strategy,The application of PLC control cabinet has special significance. With the development of computer control technology, PLC control technology based on computer technology will replace the traditional relay control technology. The excellent performance of PLC makes the system based on PLC control economy stable and easy to maintain. It is the general trend of the water supply industry to realize various control and adjustment functions of non-negative pressure water supply equipment through PLC.
Electric cabinet manufacturers thinkThe main equipment of PLC control cabinet includes: PLC, ABB inverter, pressure sensor, PID controller, power control circuit and related software control.Electric cabinet manufacturers thinkWater supply equipment is a new type of environmental protection and energy-saving equipment specially developed and designed to solve the problem that users cannot reach the water height or flow due to insufficient pressure. Users can understand and control the operation of the system through the lights, buttons and changeover switches on the control cabinet panel. Through the pressure sensor installed on the outlet pipe network, the outlet pressure signal is converted into a standard signal of 4-20mA and sent to the PID regulator.
Electric cabinet manufacturers thinkAfter calculation and comparison with the given pressure parameters, the adjustment parameters are obtained and sent to the frequency converter. The speed of the water pump is controlled by the frequency converter, and the water supply of the system is adjusted to keep the pressure of the water supply system pipe network at a stable pressure; when the water consumption is higher than the water supply of the pump, the pump is increased by the programmable controller.Electric cabinet manufacturers thinkThe PLC controls the increase or decrease of the working pump and the speed regulation of the frequency converter according to the water consumption to realize the constant pressure water supply. When the water supply load changes, the voltage and frequency of the input motor also change, forming a closed-loop control system based on the set pressure.
Electric cabinet manufacturers thinkThe system is equipped with a time controller andPID controller, so that it has the function of timing pump (that is, clock control function, realized by the time controller) and dual working pressure setting function (realized by PID controller and time controller). In addition, the system also has a variety of protection functions, especially the software and hardware standby pump function, which fully realizes the timely maintenance of the pump and the normal water supply of the system.
Electric cabinet manufacturers thinkThe programmable controller control cabinet can be used in the automation technology of mechanical equipment and the whole process of mechanical automation, can realize Internet functions, and has the characteristics of stability, scalability and anti-interference. It is the key to industrialization and life.Electric cabinet manufacturers thinkCustomers can designPLC control cabinet, frequency conversion cabinet, etc. According to their own requirements, and can be equipped with industrial touch screen to achieve the purpose of convenient practical operation.
Electric cabinet manufacturers thinkMediumBetweenControlSystemIt is the middle of the operation of the programmable logic controller.Electric cabinet manufacturers thinkIt receives and stores user programs and data information input from the development board according to the functions given by the program flow of the programmable logic controller system,I/O and its alarm timer status, canDetectionA spelling error in the user program.
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