The basic idea of electrical control cabinet design is a kind of logical thinking. As long as it conforms to the logical control rules, can ensure electrical safety and meet the requirements of the production process, it can be said to be a good design. However, in order to meet the manufacturing and use of electrical control equipment Requirements, reasonable electrical control process design must be carried out.

The decisive factors for the design of the control cabinet include the power of the water pump, how many control loops there are in the cabinet, what brands of electrical components are used in the cabinet, whether it has an automatic gear, and whether the automatic gear uses a time relay control cabinet or a float or pressure. Instruments and water pumps, whether they need water leakage protection, overheating protection or comprehensive protection, etc.

Automatic control is generally controlled by time or liquid level. Time control is: set the flushing time, the turntable motor runs the corresponding valve and the flushing pump runs. During liquid level control, it is judged whether the turntable needs cleaning according to the water depth in the pool.

In the manual mode, the user can manually control the field equipment according to the button instructions on the control cabinet door operation panel; in the automatic mode, the small PLC outputs the intermediate relay dry contact signal through the logic operation of the program according to the received control conditions, and uses this signal to The control unit of the driving equipment (such as the AC contactor of the controlled motor, electric regulating valve, solenoid valve, frequency converter, soft starter, etc.) to achieve the control purpose

Through the field bus and PLC networking, the real-time working conditions, process variables, process indicators, process parameters and other data collected by the on-site PLC are displayed to users in the form of graphics, reports, curves, etc., providing a fully convenient human-machine interface for centralized management function, and issue various scheduling instructions and process parameter settings through the mouse or keyboard

In addition, users do not need to worry about the expansion of subsequent equipment. If they add control equipment (such as PLC cabinets), they only need to connect the new equipment to the communication network and load the control program in the configuration software of the host computer to achieve the purpose.