Versatile Engine Management Systems - VEMS wiki

• Board revision V3.1
  • VR sensor connected to trigg1
  • If you don't want to take any chances with the sensitive VR sensor you connect it internally. That is at JP8 and JP7.

    • Connect sensor VR+ to JP7

    • Connect sensor VR- to JP8

    • Make sure D14 is there

    • Leave SJ2 open

    • Bridge SJ6

  • Done
  • If you want to connect the sensor to the EC connector instead of to the header inside the box you need to make these additions:

    • Bridge SJ1 (Found right next to JP7 on the solder side The bottom side its hard to see)

    • Remove R30 (Usually works with R30 still there but if you experience problems you have to remove it. Found under LM1815 on the solder side -- the backside right next to the JP7 hole.)

    • The VR- lead MUST be connected CLOSE to Pin26 on the EC36 connector in this case.

    • The VR+ lead is to be connected to Pin 27.

Insert section for V3.1 on Hall sender hookup. It should be close to the same

• Board revision V3.2
  • Hall sensor connected to trigg1
    • Solder wire between JP2 (top row middle of the trigger jumper section) and JP7 (top row to the right) [image]
    • Use D14
    • Bridge SJ2 (Leftmost in the LM1815 grouping)
    • Leave SJ6 open (found below LM1815 on component side)
    • The Hall GND lead is connected near Pin26 on the EC36 connector.
    • The Hall signal lead is to be connected to Pin 27.
    • The Hall supply is connected to pin 28.
    • Install 270ohm resistor at R142. (solder side between pin 28 and 29 on EC36)
    • Install 220n capacitor at C69 (solder side between pin 28 and 29 on EC36)
  • Done

Document last modified 2006-03-16 04:43:08

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