wiring motorfaders - unclear documentation (or PICNIC ;-)

MIDIbox HUIs
1

Hi there,

http://discourse.midibox.org/t/topic/14881

Been assembling the modules (core, din and mf) and I stumbled on something that I think I did not understand wel…

On connecting the motorfaders, am I correct to assume the following:

(deducted from http://www.ucapps.de/mbhp/mbhp_mf_interconnections.pdf and http://www.familygate.eu/alps/PDF/RSAON11M9_Spec.PDF. I will be using http://www.familygate.eu/alps/PDF/RSA0N12M9_RSAON12M9_10K.pdf)

green lines go to ‘2’ in the alps document (the wiper)

yellow lines to ‘t’ (touch sensor)

red line to ‘1’ (0%)

nothing connected to ‘3’ (100%)

grey line to the chassis

M11,21,31, … to ‘A’ (motor positive side)

M12,22,32,… to ‘B’ (motor negative side)

Is this correct? My electronics and circuit knowledge is next to zero so I find it strange that I should apply +5V to the ‘0%’ connector…

Thanks in advance,

Herwig

2

… I find it strange that I should apply +5V to the ‘0%’ connector…

The 5V are the “supply” for what gets measured after passing the resistance track, for the position determinement by the processor

Greets, Roger

3

The 5V are the “supply” for what gets measured after passing the resistance track, for the position determinement by the processor

Greets, Roger

In other words, my interpretation and way of connecting is correct?

Herwig