Specific location of IP56 waterproof fan resistance

IP56 waterproof fan is often used in computers. Everyone knows that IP56 waterproof fan plays a very important role. However, the IP56 waterproof fan needs to be repaired when it is damaged. However, we found that IP56 waterproof fan resistance is difficult to find. So where is the IP56 waterproof fan resistor hidden? Let's explore the truth and uncover the truth.
With the continuous increase of factories, it is necessary to purchase various types of mechanical equipment. However, due to work or environmental reasons, many equipment must operate in harsh environments such as high temperature, heavy dust, and humid air. Therefore, many industries need to apply IP56 waterproof fans to reduce the working environment temperature of the equipment and extend its service life. However, with the increasing demand for IP56 waterproof fans, people have higher requirements for it. Now there are also IP56 waterproof fans with three wires and four wires on the market. What is the role of the three wires and four wires of IP56 waterproof fans?
The three wires and four wires of the IP56 waterproof fan are the two added signals, the governor signal wire or the temperature measurement signal wire. The three conductors are red, yellow and black, representing 5V, 12V and ground respectively. But it can work only by connecting the red line and the black line. It turns fast when connecting 5V, and it turns fast when connecting 12.
The IP56 waterproof fan manufacturer also told us that the temperature measurement signal line and the manual governor are actually a variable resistance. When the resistance value is adjusted to the minimum (or the jumper is used for short connection), the fan speed is the lowest, and when the resistance value is maximum (or the jumper is removed), the AC fan runs at full speed. There are two governors in the IP56 waterproof fan accessories. As long as the thermistor is placed between the CPU and the heat sink, and then the jumper of the yellow signal wire on the fan is unplugged, the yellow signal wire plug of the IP56 waterproof fan is completed, and the connection of the temperature measurement signal wire is completed. In fact, it seems relatively simple.
The other is the governor signal line, which is connected to the temperature signal. Generally, the thermistor is used as the temperature sensor for temperature sampling. The temperature change causes the resistance value of the thermistor to change. The speed measurement signal of the IP56 waterproof fan is generally output from the three-lead plug. The yellow and black of the three leads are+12V power supply and ground respectively,. The speed signal output from the IP56 waterproof fan circuit is usually in the form of pulse. Each wave head indicates that the fan has turned one circle. In this way, the signal can be directly provided to the host computer through the data bus for display and work through this form.
To sum up, the signal line of IP56 waterproof fan actually plays the role of IP56 waterproof fan resistance. After understanding this, we can adjust the resistance of IP56 waterproof fan by controlling the signal line of IP56 waterproof fan, and then repair the faulty IP56 waterproof fan, so as to solve some small obstacles in life.