I have it hooked up to the T+ side of the relay. The relay specs say it needs 1.2mA at 12V, but doesn't state how many mA it needs at 24V. I'm wondering if this occupancy sensor is still not providing enough mA for the relay to detect the signal.... Any ideas?
Are you only bringing one line (the "T+") from the Occupancy sensor to the Elk relay? It might not be getting any reference ground.
I would try bringing the power ground from the Occupancy sensor to the power negative (not the "T-") of the relay and see if that works.
Hey BSR,
I had tried that, sort of. there are 3 wires on this thing, red and black provide 24V and COMM, blue is the signal wire that has 0 potential when there's no motion, or 24V when there is motion. I've tried every combination of wires, but as soon as I touch anything to T- along with T+ the relays immediately fire, motion or not, and stay on. Heck if I short T- to T+ there's 24V over them and that triggers the relays. I'm lost at this point. I'll attach a pic of the sensor wires...
CB
