Having problems with velocity comparator and can’t learn hoistway. Tach and encoder are good , I have tach feedback pot all the way counterclockwise on allen bradly analog dc drive. I’ve got some info but nothing on calibrating pots on MSU board. I can’t try adjusting VC to 8v at contact speed because I can’t get it up to speed. Does anyone have info on MSU board adjustment and /or MSU bypass