RUNCCI-YUN 1Pcs PWM Fan Speed Controller,4 Wires 0-5V 12V Fan Speed Controller PWM Speed Control On Off Switch for PC CPU Case Fan with Knob

Product description

• This is a four-wire PWM fan speed controller. It can only control 12V four-wire fans that support PWM speed control. For example, many 12V four-wire chassis or CPU fans cannot control 2-3 wire fans.
• If the speed of the fan changes and the adjustment direction is opposite, it means that the fan is a reverse runner. The adjustment point (PF) must be short-circuited with solder and the power supply must be turned off before operation to avoid damage! The short-circuited PWM signal changes to the reverse direction with the adjustment, and the reverse runner can realize forward adjustment.
• Pay attention to the positive and negative poles and the power supply voltage. After the power supply fan is connected, it can be used. The potentiometer is turned off counterclockwise to the end, and the clockwise end is the maximum power. A separate small adjustable resistor (initial speed adjustment) on the board is used to adjust the speed of the just opened position.
• Fan current 3A. This current is limited by switches and connectors, and the capacity can be expanded by taking off the power line separately. For fans above 3A, a large current fan method is connected the positive and negative poles of the fan's power supply can be connected to the power supply, the positive and negative poles of the fan are connected to the power supply separately, and the negative pole of the fan is connected to the negative pole of the board;
• Consumption less than 20mA without fan PWM signal model 0-5V 25KHz PWM signal output range 0% to 100% Start of PWM adjustment range 0% to 60% Output interface 2510-4P, 2.54mm pitch Size 26x20mm, knob screw extension 15mm, installation hole 7mm