sparkie
Well-Known Member
Hi all, can anyone tell me what each of the five wires from the M81190 fluxgate compass do? Can't find it anywhere in the literature.
Cheers.
Cheers.
Raymarine fluxgate compass wires?
- Thread starter sparkie
- Start date
solent clown
RIP
prv
Well-Known Member
earlybird
Well-Known Member
If you google "ST4000 service manual" you should find circuit diagrams, PCB layouts etc together with fluxgate pin numbers. If you're more than a bit clever then you might be able to work it out. Beyond me.
Tell us if you do!
Tell us if you do!
pvb
Well-Known Member
Not sure why the OP wants to know this, as there's little one can do with the information. If however the OP wants to test the fluxgate wiring, this is what a multimeter should show:-
View attachment 66964
View attachment 66964
sparkie
Well-Known Member
HI all, thanks for the interest and info, plenty there to go at, all of which I'll have a look at. Reason behind the question is I'm trying to locate and connect an f/g compass (to my tiller pilot) remote from my outboard to avoid interference from same.
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pvb
Well-Known Member
Shoul;d be easy if the tillerpilot is Raymarine. Inside the fluxgate compass, and inside the autopilot, there's the actual compass sensor connected via a flexible ribbon cable. You'll probably find that the compass sensors are identical, in which case you just need to match the contacts on the end of the ribbon cable.
sparkie
Well-Known Member
That was my original idea, but the contacts on the ribbon cable just connect to the PCB via a multi socket, and there's no way of knowing which is which or what goes where..... My latest idea is to disconnect the internal f/g (which one has to do anyway) and connect to the TP via the multi connector of the TP which has 5 wires, 2 power, NMEA + &- , and SeaTalk data. Hence the query..... Cheers.
pvb
Well-Known Member
If you dismantle the fluxgate compass you'll see which wires go to which contacts on the ribbon cable. This diagram may help:-
View attachment 66967
View attachment 66967
sparkie
Well-Known Member
Yes the diagram is helpful, and the output wires seem identical to the one I'm going to use, however it still doesn't tell me what their function is to match up with those in the TP socket, which is as follows: +12v dc Brown, 0v dc Blue, NMEA + white, NMEA - Green, SeaTalk Data Yellow. All v.confusing.
prv
Well-Known Member
They won't match up with those. The compass itself is purely analogue, it's only the autopilot or display unit it's plugged into that turns those signals into digital data like NMEA or Seatalk.
Pete
sparkie
Well-Known Member
Well that explains a lot then...... wish my electrics were better...... I know others have connected an F/G to an ST40 compass display and then on to the TP, but I was trying to avoid that route as I have two compasses already- magnetic and GPS- and don't really want another. Hey Ho, back to the drawing board. Thanks a lot for your help, you've saved me a lot of abortive time. Cheers, Peter
pvb
Well-Known Member
As prv said, the fluxgate doesn't output NMEA or Seatalk data. But if you were to break in to the wiring in the tillerpilot, you could still attach the external fluxgate instead of the internal compass sensor.
sparkie
Well-Known Member
Yes and the clue as to which terminal on the ribbon cable is which may be in the diagram you posted. Food for thought- I've got six months to sort it out while she's in the car park.............. ! Cheers.
omega2
Well-Known Member
file:///E:/ST%2040%20COMPASS.pdf
Hoolie
Well-Known Member
What's that supposed to be? It's the address of a file on your computer's hard disk drive
RichardS
N/A
What's that supposed to be? It's the address of a file on your computer's hard disk drive
OK .... I'm into his E: partition so now I just have to navigate to the bank passwords.
Richard
Hoolie
Well-Known Member
John the kiwi
Well-Known Member
Originally I had my Tillerpilot on the starboard side which put it just ahead of the OB. This was a particular problem when the OB was tilted.
Changing the Tillerpilot to the port side was enough to fix the problem.
Of course you have to change the sense of the Tillerpilot as well but thats easy done.
BelleSerene
Well-Known Member
If I decode that correctly, your outboard engine is interfering with your flux gate compass. If so, move the compass to another location in the boat, and the identity of its wires needn’t concern you - just take a cable to connect each to the same place.
