Autohelm 2000 Tillerpilot Pot style wiring

[djdsails]

Hi
i have an old autohelm 2000 tiller pilot with the pot twistable compass control head. i noticed that someone extended the wiring between the tiller linear actuator and the pot control head, i removed the tape and saw 4 wires, a red, yellow, blue and green. Which i did not expect.
Is there a potentiometer? any information about it, voltages, extents etc?
when i took apart the linear actuator for greasing i noticed a small circuit board behind the motor, any information on that, how it works etc? no pictures of it sorry didn't dig into that side of it much.
which wires are the positive and negative? can i drive the motor with just the positive and negative wires? - looking to have the linear actuator eventually be controlled by Pypilot and my pi zero...
Does the pot control head know the extents of the actuator?

Any information or wiring diagrams will be helpful!

In the mean time i plan on poking the wires with a volt meter.

Thanks!

 

[Rum Run]

Hi
i have an old autohelm 2000 tiller pilot with the pot twistable compass control head. i noticed that someone extended the wiring between the tiller linear actuator and the pot control head, i removed the tape and saw 4 wires, a red, yellow, blue and green. Which i did not expect.
Is there a potentiometer? any information about it, voltages, extents etc?
when i took apart the linear actuator for greasing i noticed a small circuit board behind the motor, any information on that, how it works etc? no pictures of it sorry didn't dig into that side of it much.
which wires are the positive and negative? can i drive the motor with just the positive and negative wires? - looking to have the linear actuator eventually be controlled by Pypilot and my pi zero...
Does the pot control head know the extents of the actuator?

Any information or wiring diagrams will be helpful!

In the mean time i plan on poking the wires with a volt meter.

Thanks!

As I understand it the big pot is the actual compass sensor plus some circuitry. The wires from this would be +- to the motor, and reversing them reverses the direction. Usually there are no end stop switches.

 

[2mako]

Hi,
I’m asking almost exactly the same questions in a different thread regarding the wiring for Autohelm 3000 (I think we share the same motor and the wiring seems exactly the same).

Autohelm 3000 wiring

I’m also trying to figure out why there are 4 wires and how to make it work using just 2 (+ & -) so this thread is vey interesting for me as well. Hopefully someone sits on the answers.

cheers!

 

[djdsails]

i got this from a post on FB asking the same question. makes sense but dont trust it as the guy who posted the photo also said "id disassemble it"

 

[djdsails]

some one else said its brake wires or clutch wires

 

[2mako]

Thanks for the input! Not sure how to value the info though... the schemantic makes no sense to me ?

 

[capachab]

Hi guys.
Disassembling my autohelm 2000 l broker the wires!!!! The Red and the Yellow are to see buy the green and the Blue are a mistery!!! If you send me a picture you llmake me a very Happy man!!!!!