NEW: aquaero 5 series

[Shoggy]

@Phatboy69: we had a similar problem with another customer. Below a specific voltage some fans do not generate a clean rpm signal anymore which leads to weird rpm values. The way the PA2 and AE5 reads out the rpm is different so it is also normal that for example the AE5 will provide a normal value while the value from PA2 is messed up. The AE5 will get even better on this with the next firmware because we added another filter for muddy rpm signals.

Here is an example for a fan that we analyzed with an oscilloscope:



Looks like a clean signal at first but it is not. If you take a closer look at the end of the wave from the center you can see a another small wave behind. When we zoom into this area you will get this:



This little second wave is causing all the trouble because it generates another impulse for the rpm value. That is the reason why you get such a huge rpm value.

So, nothing wrong with both devices. It is just the fan which is not able to generate a clean rpm signal if the voltage is too low.

@Paradoxxx: If you use the PA2 with the AE5 via aquabus you don't have to connect the PA2 via USB. Everything can be done through the AE5. The PA2 integrates like a 5th (6th, 7th, ...) fan channel.

@pociej: Yes, that is possible so in total you could have 8 flow sensors. Which flow sensor are you using and which tab do you exactly mean?

@zoomee: this is the temperature control of the voltage regulators. If the temperature becomes to high the speed will be set to 100% so the voltage regulator can cool down. Afterwards your settings will be loaded again. If the temperature still goes up the fan channel will be turned of to avoid damages on the AE5 controller. With the next firmware the overheat monitoring will be changed so it can allow larger loads.

@Paradoxxx: you should wait for the next firmware because of changes that we did to the monitoring. Comparing it now is pretty useless in my opinion.