Originally Posted by alexe
Since the 5K resistor is located in the AV5000, it does not really ensure the continuity of the wire all the way to the disconnects switch anyway. It's kind of worthless in our case.
Alex .... Actually, with the 5 K resistor being on the AV50000 module it insures the continuity of all the wires in the disconnect path because the disconnect originates from pin 15 which is the 5K resistor. As long as the AP disconnect wiring is intact, there will be a 5K load presented to the servos on the AP DATA I wire until the disconnect button is pushed .... at which time a solid ground will be on the wire. Should the wiring break, that 5K ohm load presented to the servos will now become an infinite resistance .... it is this change the the "enable broken line detect" should be monitoring. Without the 5K ohm resistor the servos would always see an infinite resistance (until the disconnect button is pushed) and could never detect if a wire was broken.
Here again, I suspect the method and /or hardware used for the broken line detection in the servos is not quite up to snuff.
RV-12 Wings, Empennage, Fuselage, Finishing, Avionics and Powerplant kits all completed
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Last edited by John-G : 08-21-2017 at 06:46 AM.