How to teach an inclinometer?

sorry about the fuzzy picture. I am studying about this inclinometer pinout. The gray wire is for "teach." So, applying 5V signal to the teach wire does what? I thought doing that teaches it the 0 degree point? I gave 5V to the gray wire but no change in the voltage output (at any rotational position). What am I missing here?

http://lmgtfy.com/?q=turck+b2n10h-q20l60-2lu3-h1151&l=1

The top pdf link shows the teach signal being at the same potential as 0v, or negative.

The teach is the Grey but you need to find your zero (Or where you want zero) touch the Grey to Ground Blue for 1 sec then find your end position then touch the grey to blue for 3 sec. your done. To go back to default touch the grey to ground for aprox 6 seconds resets. I hooked the grey and blue to a button found it was easier. I then found the correct button that is made for it. Hopefully no damage was done by applying the 5vdc ..do a reset and start over apply grey to blue for 6 sec..

http://pdb.turck.de/media/_en/Anlagen/Datei_EDB/edb_1534006_gbr_en.pdf