Thank you very much for your reply, but I found the issue !
It was a problem on the brand new DM10 module. It's a module bought on "Drum-Tec" web site, but it was a "return" module. The problem was the "trigger OS" weren't installed on the module...I update it, and now, it's working fine.
I understand now why it was a "returned" !! But it was a good deal because I payed it 200€ less the normal price.
Thanks again for your help ! I can close the post now !