The variable frequency control board is mainly used to adjust the working frequency of equipment, reduce energy loss, and can smoothly start the equipment, reducing the damage to the motor caused by the large current generated when the equipment is directly started. Simultaneously equipped with analog input (for speed control or feedback signals), PID control, pump switching control (for constant pressure), communication function, macro function (with different parameter settings for different occasions), multi stage speed, and so on.
The inverter first converts alternating current (AC) into direct current (DC), and then converts DC into AC with adjustable frequency, thereby changing the operating speed and torque of the motor.
Frequency conversion control cabinets are widely used in water supply systems, central air-conditioning systems, fan and water pump control, constant pressure water supply systems, air compressor control systems and other fields, especially in energy saving and automatic control.