I am having trouble with the voltage dropping on my proximity switches.
I purchased some 5vlt prox switches, when they aren’t connected to my C-10 bob the switch behaves well, provides 5vlts until there is metal within range. I have the blue wire to negative, brown wire to 5vkt off the board, black wire to my multi meter. However when unconnected it to pin 13 the voltage drops to 1.3vlts.
This is not enough voltage to provide a signal.
I have pin13 set to Yaxis active low.

Why is the voltage dropping so much when it is connected?