From Hentschel
/* initial z wave install */
** add the USB serial port used
* for locks, make sure no existing keys exist in the lock.
* in habmin, hit discovery on theh the z-wave bridge device (upper left corner), and hit the locks "A" button shortly after
** the lock device should be discovered in the inbox
* check the discovered device, it may take a little bit for it to be completely discovered
* if not checked, use habmin to unpair device, hit the ''A'' button again to complete un-pair.
* discover the lock again, check that ''using security'' is checked
lots of good info on [http://www.cd-jackson.com/index.php/openhab/5-zwave-debugging-openhab chris jackson's site]