K8028 kit - Fan speed adjustments (help)

Hi Velleman,

I’m interested in the following kit from Velleman:
velleman.eu/products/view?id=343638

I would like to lower the speed even more of my current Stanley ST-30P-DDF-E fan, which has already 3 speeds. But even low (speed 1) is too fast:
images-na.ssl-images-amazon.com … L1500_.jpg

Data sheet (other brand, but very very similar), see model: MAC-30P-DDF-B:
masterindustrialproducts.com/wp- … M_2015.pdf

So, I though function 13 on this K8028 kit would be the best option to change the fan speed (better then using potentiometer, since its a synchronous electric motor, with no brushes). Then put the actual fan in speed 1 and then use your kit to further slow down the fan speed…
Do you agree with my solution?

Your kit documentation however says:

[quote]These figures are only indicative and depend on the motor used.[/quote] So what do you think guys with this motor? Will 40% really be 40%? See also attachments below!

If so, I was wondering do I need to purchase some push button separately. Since the DOM list says it contains a push button (SW1), but I don’t see SW1 coming back on the PCB. Moreover, it’s also not clear if I need to control the speed via the ‘INPUT’. And if there are 2 push buttons required for example (1 for the settings of the micro controller (on the PCB??) and 1 for the fan speed positions, via INPUT?)… If I need another push button besides the kit K8028, which type?

Thanks in advance!

Regards,
Melroy van den Berg



I don’t think it will work.
If you look at the specs on the kit they only talk about lights