Yes, it is normal, because "Werkzeuglüfter" is not hotend fan, it is part cooling fan for active tool, or lets call it "tool fan". "Bauteillüfter" is also part cooling fan, so as you have only one tool, they are same thing. There are 2 controlls for one fan just in case you have more then one tool, then you can controll those more then one part cooling fans separately. You actual hotend cooling fan is still thermostatically controlled by firmware and you cant controll it from DWC
okay thank you very much, then i'm reassured.
I already thought I configured something wrong because this is my first Duet Board and I've been studying the Duet Wiki for weeks 😃