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  1. #1

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    Binding Help on Electric plane

    I have a DX7 Spectrum and I'am trying to bind this electric plane that I got from someone. When I plug everything up all I get is just a beeping sound from the motor nothing from the receiver etc. see pics below of my equipment. I dont know what I'am doing wrong. even tried switching the 3 plugs around coming from the motor still nothing. any help would be greatley appreciated.
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  2. #2

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    RE: Binding Help on Electric plane

    And can anyone tell me what this maybe see pic below. Hobby People said I didnt need it and I ended up cutting it off. Dont know if that would be my problem with the binding issue.
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  3. #3
    flyinwalenda's Avatar
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    RE: Binding Help on Electric plane

    I looked up the Grayson Hobby Advanced Edition 50a ESC and that is an OPTO type with no built in battery eliminator circuit.
    The device you cut off is the BEC (battery eliminator circuit) and it provides 5 or 6 volts DC (depending how the jumper is set) to the receiver.
    You need to connect it back to the battery plug lead and then connect the Futaba servo plug into the receivers battery port or any spare port.
    Then when you connect the lipo up the receiver now will have power and you can bind it to your transmitter.
    Brian Ray

  4. #4

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    RE: Binding Help on Electric plane

    Thanks bro and I guess hobby people dont know what they are talking about..

  5. #5

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    RE: Binding Help on Electric plane

    What is a OPTO by the way?

  6. #6
    flyinwalenda's Avatar
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    RE: Binding Help on Electric plane

    Opto-coupler
    The power used to drive the motor is electrically isolated from the power used to control the servos and you need a BEC or a separate receiver battery to power the receiver.


    Brian Ray

  7. #7

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    RE: Binding Help on Electric plane

    Not exactly. The opto coupler isolates the receiver control signal and possibly it's return from the speed control motor power innards.
    The main battery (negative) common, and an external BEC powered by the main battery, and the speed control,
    as well as the receiver and servos normally have the same common.

    Binding a spectrum, etc. RX&TX can be done out of the aircraft with either a conventional Ni-Cad receiver battery, or a LiPo with a BEC.
    I usually plug in one servo to verify end to end operation.

    I also use the BEC/LiPo combination for setup. With a servo tester and digital readout, the BEC/LiPo can also be used to setup servos and linkage.
    Servo to 150 on the readout, set the arm perpendicular to the servo case. Then set the model's linkage up for center position on the control surface.
    (Flaps may be an exception, depending on the physical linkage, position, etc. ) Many of the Spectrum receivers allow more than one way to setup flaps.
    Such as the default servo center, or flaps up, 50%, etc.) This has to do with exactly how you do the binding.


  8. #8

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    RE: Binding Help on Electric plane

    Ray: What are you doing to bind the rcvr. to the trans.??
    Gord
    Dreamed I was a muffler. Woke up exhausted.


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