My PWM fan module ( Zhiyu® dc 12v 24v 48v 2 way cooling pwm 4 wire fan temperature controller temperature speed display Sale - Banggood.com) arrived from overseas. I had purchased it to add functionality to the Noctua PWM fan I have cooling the enclosure. I designed and 3D printed an enclosure box for it (see photos), and have it mounted on the side. The cover is a pressure fit, and it allows the small LED display to be visible. The display shows temp and RPM (x10). I liked the functionality of this particular module, and currently have it set to keep the fan at about half (see photo 167 X 10) its max speed of 3000RPM, until the temperature reaches 40 C, at which point it delivers maximum RPM. I chose not to connect the ‘no RPM’ alarm. One temp probe is mounted at the top of the enclosure above the 48V PSU, the second above the Masso controller on the far left of the panel (this section of the panel would get the least air circulation).
I had my controller on without a fan for a few hours while I did some vcarve testing, and it reached about 28 C max. After I had the fan on (1/2 speed) for a short time, the enclosure temp dropped to about 22 C, which is what I keep the house at. One other reason I got the module is to reduce noise. At half speed, the fan makes less noise than the internal cooling fan of my 48V MeanWell PSU.
The last item to install was a fine mesh filter on the fan intake. I chose one made by Thermaltake ( Matrix Duo)for its quality. You can see from the picture that it has started to pick up some dust and dog hair, I mounted it under the 3D printed fan cover I had made.
The enclosure is now complete … for now.
