Phoscon - Switch, Sensor


As far as I understood, the motionsensor can not override the wallswitch.
My motion sensor turns my light to 25% or 50% depending if day or night.
Now I want my lightlevel at 100%. I use the wallswitch to dim the light to 100%.
When I now enter the room the light dims to 25%/50%.
The switch and the sensor are in the same group and the switch is marked in in the sensor control.
Did I misunderstood the instruction?