Ok, i got the motion sensor of my HSM100 sensor working.
This is what i had to do:
First i deleted the Motion Detector #54 DT, that i added, from the tree.
Then i did a reload and added the Motion Detector #54 DT again.
After this, i did another reload, this one is not mentioned in the wiki, but as far as i can tell at the moment, this is the one thats important, because as far as i know, when doing a reload, all DT's and child DT's get properly read again.
After this i did a sudo killall ZWave to restart the ZWave device.
Then i opened the Advanced ZWave page in webadmin, looked up the device and opened its Associations tab.
I had to set a association from the group motion to the controller node 1, this was not done automatically.
This is necessary, because only when set, the controller gets motion events.
Did another reload and a bit of rule #1 and voila, everything in working order.
Hope this helps you too,
br,
Raymond
EDIT: i updated the wiki with the above info.