Używał ktoś może zasilacza MEANWELL serii EPP400? Tam m.in. jest wyjście
12V/0.5A dla wentylatora. U mnie na tym wyjściu nie ma napięcia. Czy tam jest jakaś automatyka, która uruchamia wentylator dopiero jak się zasilacz nagrzeje? Karta katalogowa jest bardzo uboga w tym temacie. Pozdrawiam JS
Znalazłem taki text w FAQ na ich stronie (może się kiedyś komuś przyda):
Cooling fans have a relatively shorter lifetime (typical MTTF, Mean Time To Failure, of around 5000-100000 hours) compared with other components of power supply. As a result, changing operating method of the fans can extend the operation hours. The most common control schemes are shown as below:
Temperature control: if the internal temperature of a power supply, detected by a temperature sensor, is over the threshold, the fan will start working at full speed, whereas, if the internal temperature is less than the set threshold, the fan will stop working or run at half speed. In addition, cooling fans in some power supplies are controlled by a non-linear control method whereby fan speed can be changed with different internal temperatures synchronously. Load control: if the loading of a power supply is over the threshold, the fan will start working at full speed, whereas, if the loading is less than the set threshold, the fan will stop working or run at half speed.
Temat rozwiązany, dzięki za sugestie. Pozdrawiam Świątecznie. JS
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