My problem was solved.
For everyone, that use also the system of Woltlab too, and have the Plugin "Security System" installed, so they have to should deactivate them. When the Plugin is active, the bulletin will block and blacklisting completely the crawler.
Resulution of the first attemp by the crawler on my woltlab burning board bulletin by the deaktivated plugin:
in 5:48 h he found 89.623 urls and wrote them in splitted sitemaps.
When you run it over an mysql & php project, look at same time when the crawler is working in your command line from the server and watch to the resources of the sql daemon. When you have an own root server, it's ok, but when you have an hosted webspace, the isp was not affraid over this trouble from the crawler on the sql daemon.
Give it an option, where i can limit the to scanned pages per second or minutes?
Many thanks at the admin of this xml-sitempas forum for its magnificent support and aid in the solution of my problem.