Fader sendinge lowest Value.

[Troumble]

Hi QLC Folks,

Im new to QLC and probabbly have a very basic problem.

Scene:
lets take the shutter, its controlled as follows:
0 : OFF
0 - 135 : Shutter
136 - 247 : Strobe
So i create two buttons, ON and OFF and two fader, Shutter and Strobe with Shutter having Range 0-135 and Strobe 136-247

My Problem:
The fader: "Shutter" is sending its base Value; 136 all the time, even if i read the channel and have it update.

This also applies for lets say the Gobo Spin Speed. how would i go about having a Knob controlling the speed in the left direction and not collide with the knob controlling the speed of the right side.

Thanks in advance for the Help
Greetings Eddie