Nico, first thing - make sure you are using this Z-Wave binding:
This was my recipe for getting it working
Download the jar from very first post, first line: “The latest version of the test binding … is here”.
Exclude the existing Danalock from the stick.
Uninstall existing ZWave binding.
Copy over this jar to your usr/share/openhab2/addons directory
restart openhab (just to keep things clean)
Start discovery of the Lock from HABmin interface (not from the stick) - by clicking
When Danalock thing discovered- add the thing. Assign item to channel, live with it
fingers crossed!