The cooling fan mainly plays the role of cooling in machinery and equipment.At present, the demand for cooling fans in various industries is increasing, and all kinds of production equipment can not be separated from the cooling effect of cooling fans.Cooling fans can adjust the speed of fans according to actual requirements, which can greatly reduce the noise and power consumption of fans.What are the commonly used fan speed regulation methods? The following is introduced by Shenzhen Sanju Motor Factory:

    1.The rotating speed of industrial cooling fan can be adjusted by adjusting the working power supply voltage.

    2.PWM speed-regulating cooling fan is regulated by a special PWM speed-regulating control circuit.This control signal is to be completed by the cooling fan manufacturer.This function can control the fan speed by using frequency and high and low voltage levels, and linearly control the fan speed by adjusting duty ratio.Fans with PWM speed-regulating usually have four leads to be used in conjunction with FG speed-measuring signals.

    3.Temperature control function (TC):When this function is applied, the speed of the fan is controlled by temperature, and different problems can correspond to different speeds.This function should be completed by the manufacturer of the cooling fan.

    4.Resistance can be added to the circuit of the industrial cooling fan to reduce the power supply voltage and realize the speed regulation.