Thank you,
I did some tests with a small servo (something like the one below ) (pulses of (10-20µs) with a freq of 50Hz) and arduino and it works very fine.

However when I connect this speedcontroller (http://at.robbe-online.net/rims_at.storefront/46bc152e00247390271c3e0dc1460644/Product/View/1&2D8440 )- I can't measure any voltage on the outputs (blue and white wire) . The problem is that I'm not experienced with this components
I did the wiring like this:
http://www.wix.be/stuff/scheme.jpg
Somebody any idea what I'm doing wrong / recommendations?