I am installing the auto pilot control panel in an RV as a retrofit. Decided to use the trim system which is included to replace the Ray Allen relays, speed controller and the position indicator (indicator quit working years ago). What I need to know is does anybody know which wire from the Ray Allen trim motor is the position potentiometer? The installation manual says to hook that wire to an Aux input on the Dynon 1000 but I can't figure out which wire that is. There is a Blue, an Orange and a Green. The Company says the Blue and Orange are Gnd and Power and the Green is the signal but they couldn't say how the 1000 can derive position from the signal wire unless it is sensing the voltage to the motor which is through the Dynon. I may have figured it out but would like to hear from someone who may have done this already.
AP Control panel Trim Control Wiring
- Thread starter Edwardoc
- Start date
page 7 - 66 of the installation manual refers. There is a potentiometer gizmo in the Ray Allen case with the motor. The green/white? Ray Allen wire goes to an EMS pin the potentiometer power and ground (orange blue wires) to EMS +5V and EMS ground and you put a trim widget on your engine screen. The trim motor power goes through the black and red wires and your CB. The motor voltage has nothing to do with the position sensing do hickey. The trim switches via the AP panel. Works fine.
jakej
Well-Known Member
Just in case you are not aware, the optional speed controller is also not used in this situation as that function is ‘adjusted’ in the AP control menu.
Thanks for the info. Changing the wiring for the rear cockpit stick is now going to be the most difficult task as I had the up and down signals hooked in series between the sticks. Now have to find those wires in the bundles or cut and splice in new wires to the the controller.
Just passing on some information for anyone retrofitting to their Experimental. I did my own electrical wiring over 12 years ago and in retrofitting the trim system I discovered the importance of documenting exactly how I did or didn't do things. My existing trim system worked flawlessly but since I had an opportunity to include the auto trim I decided to rewire it. That has taken 10 times longer then planned partially due to having to trace some wires down to figure out exactly how I did it and where I hooked some wires together. I had some documentation but lacked the details that were necessary. Lesson learned. One tends to forget things as one ages.