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Hi Alex
Thanks, we’ll soon see which decisions where wise and which were expensive!
I have the EM3 instructions as a word file that is 8.5MB.
Can I have your address to pm you.
Hopefully your provider can handle that file size.
Could you take a photo of your EM3 so I can see what you have.
From memory all EM3 wiring was to the 4 terminal strips.
There should be:
1. Power and Earth.
2. Serial link to EC2
3. Connections to EM3 head unit
4. All the sensors
I’ll send the file as soon as I have your address
Here is the terminal breakdown of the AQM
Cheers
Steve Izett
AQM TERMINAL BLOCK ASSIGNMENTS
TERMINAL SIGNAL DESTINATION
TB1-1 N/U NOT USED
TB1-2 FUEL PRESSURE FUEL PRESSURE SENSOR TERMINAL
TB1-3 GROUND AIR DATA SENSOR GROUND (PIN 2 ON ALL)
TB1-4 N/C NOT USED
TB1-5 OUTSIDE AIR TEMP OAT SENSOR PIN 2 (WHITE WIRE)
TB1-6 OIL PRESSURE SENSOR OIL PRESSURE SENSOR TERMINAL
TB1-7 COOLANT PRESSURE COOLANT PRESSURE TERMINAL
TB1-8 O2 SENSOR/MIX O2 SENSOR LEAD
TB1-9 TAS (OPTIONAL) TAS SENSOR PIN 1
TB1-10 OIL TEMP OIL TEMP SENSOR TERMINAL
TB1-11 LEFT FUEL LEFT FUEL TANK SENSOR
TB1-12 +5 Pwr FOR OAT & air OAT RED WIRE & POWER AIR DATA SENSORS IF EQUIPPED
TB1-13 ALTITUDE ALTITUDE SENSOR PIN 1
TB1-14 N/C NOT USED
TB1-15 RIGHT FUEL tank RIGHT FUEL SENSOR or (MAP sensor on non EC3 eng)
TB1-16 COOLANT TEMP COOLANT TEMP SENSOR TERMINAL
TB2-1 & TB3-1 CHT8 RED,WHITE J TYPE THERMOCOUPLE
TB2-2 & TB3-2 CHT6 RED,WHITE J
TB2-3 & TB3-3 CHT4 RED,WHITE J
TB2-4 & TB3-4 CHT1 RED,WHITE J
TB2-5 & TB3-5 CHT2 RED,WHITE J
TB2-8 & TB3-6 CHT3 RED,WHITE J
TB2-7 & TB3-7 CHT5 RED,WHITE J
TB2-8 & TB3-8 CHT7 RED,WHITE J
TB2-9 & TB3-9 EGT8 RED,YELLOW K TYPE THERMOCOUPLE
TB2-10 & TB3-10 EGT6 RED,YELLOW K
TB2-11 & TB3-11 EGT4 RED,YELLOW K
TB2-12 & TB3-12 EGT1 RED,YELLOW K
TB2-13 & TB3-13 EGT2 RED,YELLOW K
TB2-14 & TB3-14 EGT3 RED,YELLOW K
TB2-15 & TB3-15 EGT5 RED,YELLOW K
TB2-16 & TB3-16 EGT7 RED,YELLOW K
TB4-1 OAT BIAS BLACK LEAD ON OAT SENSOR
TB4-2 LYC. TACH P-LEAD ON MAG (Lycoming only, no ec3 controller)
TB4-3 TACH & FUEL FLOW SENSE FUEL INJECTOR 1 LEAD ON EC3 & FUEL INJECTOR
TB4-4 SERIAL DATA IN SERIAL OUT FROM EC3(J2-13) or EC2(J1-7)
TB4-5 N/C
TB4-6 N/C
TB4-7 GROUND GROUND ON AIRFRAME NEAR AQM
TB4-8 +12 POWER AVIONICS POWER BUS (SWITCHED)
TB4-9 VOLTAGE SENSE MAIN POWER BUS (TO SENSE SYSTEM VOLTAGE)
TB4-10 SERIAL DATA OUT SERIAL IN TO EC3(J2-12) or EC2(J1-27)
TB4-11 N/C
TB4-12 DISP DATA OUT PIN 5 ON EM3 DISPLAY CONNECTOR J1
TB4-13 Vss/GROUND PIN 17 ON EM3 DISPLAY CONNECTOR J1
TB4-14 DISP DATA IN PIN 7 ON EM3 DISPLAY CONNECTOR J1
TB4-15 DISP DATA CLOCK PIN 6 ON EM3 DISPLAY CONNECTOR J1
TB4-16 +5 POWER FOR OAT SENSOR RED WIRE ON OAT SENSOR
> On 2 Jun 2018, at 1:13 pm, alex alex.molteno@gmail.com <flyrotary@lancaironline.net> wrote:
>
> Thank you Steve
>
> My EM3 has no DB plug mounted on the side of the box for wiring, like the EC2 has.
>
> I assume we have to solder a ribbon to the board inside and run it out whichever side of the box is convenient for mounting. I suspect I wasn't sure on my mounting location when I bought it, so asked Tracy not to wire it yet. Do you have a pic of that wiring from the board to outside the box?
>
> Tracy gave me a printed manual, I'm just not sure where I put it, I moved a lot of stuff around in anticipation of hurricane Irma last season.
>
> If you have a PDF of the EM3 manual, that would help loads,
>
> Thanks Steve, good luck with getting the Glasair dialed in,
>
> Alex
>
> On Fri, Jun 1, 2018, 11:04 Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> Hi Alex
> Do you have the EC2 and EM3 install documents?
>
> For the EM3 to talk to an EC2 it needs a serial link which requires the two connections below plus a common earth
> EM3 TB4-4 SERIAL DATA IN SERIAL OUT FROM EC2(J1-pin 7)
> EM3 TB4-10 SERIAL DATA OUT SERIAL IN TO EC2(J1-pin 27)
>
> Steve Izett
> > On 1 Jun 2018, at 10:44 pm, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> >
> > Hi Alex
> > In case Tracy is not around, what do you not understand re EC2 talking to EM3?
> > Steve Izett
> >
> >> On 1 Jun 2018, at 10:33 pm, alex alex.molteno@gmail.com <flyrotary@lancaironline.net> wrote:
> >>
> >> Hi Tracy, are you around FL area still, I need advice to wire up the ec2 to em3, or ill be happy to send the em3 to you as well if that's an option
> >>
> >> Thanks,
> >>
> >> Alex
> >
> >
> > --
> > Homepage: http://www.flyrotary.com/
> > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage: http://www.flyrotary.com/
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