MAUCH is somewhat sparing with instructions for wiring and their settings in “Mission Planner” or “QGroundControl”.
I am assuming that the Power2 Connecter of the MAUCH 31 PC-PDB transmits the voltages to the FC.
Can someone confirm and comment on this?
The 2nd step would be what values I need to set / specify in QGC to read the data.
With best regards and thanks
Bill
Issue fixed! 
Thanks