Can someone help me on Wiring 3 wire proximity switches in series. If I run the wires back to my BOB the lights on the switches stay lit and still trigger. I know there is something wrong because the light should be out till it's triggered.

I'm using this switch SN04-N 3 Wire NPN NC DC Inductive Proximity Sensor Switch 4mm Detective Distance with a 24v PS

Link to switch.http://www.ebay.com/itm/SN04-N-3-Wire-NPN-NC-DC-Inductive-Proximity-Sensor-Switch-4mm-Detective-Distance-/272209174995?_trksid=p2047675.l2557&ssPageName=STR K%3AMEBIDX%3AIT&nma=true&si=qi6JMQ6UWvziTgplo1AYFa adbiU%253D&orig_cvip=true&rt=nc

Link to BOB http://www.ebay.com/itm/5-Axis-Cnc-B...AAAOSwaZdXHuv8





Any help will be appreciated.

Mike