hbiss, you are right these sensors cannot be by-passed because of DYIers.Apparently the controller has to see something like a 5V signal from the receiver sensor to start, shorting leads wont work.
I still don't get it? i thought the sender was on all the time and receiver sensor l.e.d was the only one to turn off when you step in the beam or if it's out of alignment.
If both sensor l.e.ds are on proving the beam is clear the controller should be accepting the signal voltage and operating or that was the logic i had adopted?
(1) What is the is the signal the receiver produces and the controller is supposed to "see" in order for it to operate?
(2) is there a device like a resistor or something i can use to produce this signal voltage?
Basically all safeties appear ready so its either absence of proper signal voltage or controller malfunction.I just don't have a clue from that point on.thanks
