Intelligent four-wire PWM fan temperature control governor temperature speed display digital display temperature control governor shutdown DC12V3A

Description:   

Model: PWM fan temperature control

Product Selling Points:

1. Using high-quality materials, the quality is guaranteed

2. The appearance of the product is delicate and compact

3. Support low-temperature shutdown of fans within 3A, can directly turn off the fan power supply, and support back-to-timing fans

4. The wiring of the product is simple and convenient

5. Support four-wire fan speed regulation product parameters:

Design power supply voltage: DC12V

Voltage range: DC8-16V (please pay attention to the fan voltage range for circuit working voltage)

Circuit self-consumption: less than 40mA (tested at 12V) Fan current: no more than 3.3A

PWM Range: 1-100 (Signal Percentage Non-Actual Speed±0.5%)

PWM FREQUENCY: 25KHZ (Plus or MX 1KHZ) PWM SIGNAL AMPLITUDE: 5V (No Load)

Temperature measurement range: -9.9-99.9°C

Temperature measurement error: the error in the range of 0-50C is less than 1.2°C, and the error in other ranges is less than 2°C Precautions:

1. This control only controls the speed adjustment of the fan controlled by the four-wire standard PWM signal, the signal specification is 25KHZ5V, which is supported by conventional chassis, C PU and many server four-wire fans, but cannot control the speed regulation of the 2-3 line fan!

2. The difference between the acceleration temperature and the full-speed temperature should not be less than 5 °C, and the difference between the closing temperature and the acceleration temperature should not be less than 2 °C. Display Description:

Three-position digital tube: display specific parameters and values

LED "X1RPM": Rotational speed unit light: This light lights up the digital tube and displays the fan speed, which is the value after dividing the speed by 10, for example, if 256 is displayed, the actual fan speed is 2560RPM (rpm)

LED "°C": Temperature unit light This light is lit on the digital tube to display the temperature measured by the probe

LED "RUN": Fan run indicator: The fan is lit when the fan is running, and the fan is off when it is off