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Mk motor shut down

Discussion in 'Electronics' started by Michael comissiong, Sep 19, 2013.

  1. Gustavo Rios

    Gustavo Rios Member

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    When I shut down the radio the channel one values go to center, not 0, and I have red light in FC and NC
     
  2. Dave King

    Dave King Well-Known Member

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    Channel 1 should go to center and red light should come on the FC as well. Why its shutting the motors down is unusual. Something tells me somethings going on in the flight control board.
     
  3. Jason Smoker

    Jason Smoker Active Member

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    I just tested mine with the dx8 and same thing as soon as the radio is turned off the motors stop! hmm
     
  4. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    I suspect this might be something that requires a message posted on forum.mikropter.de -- it sounds very odd -- like some variant of "fail-safe" procedures, except it's "fail live!"

    Andy.
     
  5. Jason Smoker

    Jason Smoker Active Member

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  6. Dave King

    Dave King Well-Known Member

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    Or redundant failure.
     
  7. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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  8. Gustavo Rios

    Gustavo Rios Member

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  9. Jason Smoker

    Jason Smoker Active Member

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    I already had mine ticked Andy when I tested mine
     
  10. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Oh well, there goes another beautiful theory, crushed by an ugly fact!
    I guess we will have to wait for the guys on mikrokopter.de to respond.

    Sorry about that... :(
    Andy.
     
  11. Jason Smoker

    Jason Smoker Active Member

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    least your thinking outside the box! (get it hahaha)

    yeah thats a good problem i hope someone can solve it
     
  12. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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  13. Dave King

    Dave King Well-Known Member

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    I wouldn't count on that. A lot of the questions on there don't get answered. Spektrum users will few and far between. This might need an email sent directly to Holger.
     
  14. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    You may be right, Dave.
    How about another experiment?

    The MK boards think the aircraft is "flying" if the throttle is increased above 40%. So, presuming you have the Navigation Controller installed with a microSD card, if you were to start the motors (without props of course), advance the throttle above 40%, then simulate not being at ground level by taking the copter (motors running) up a flight of stairs, and then power off the transmitter. The going upstairs idea is to avoid any custom MK logic that cuts the motors because the copter knows it's still sitting on the ground and therefore should not (for safety's sake) go into a percentage of the power required to hover (because of the "Use vario control for failsafe altitude" option being set).

    From what you guys have found, the motors should stop. (In contrast, the theory of what should happen is that the motors should go to whatever percentage of hover power you selected for Sender Signal Lost provided that the "Use Vario control for failsafe altitude" option is checked and the parameters written to the FC board.)

    But *now*, if I'm right, the motors will stop *but* you will have a GPX file for this dummy flight written to the microSD card.
    If you post that GPX file, perhaps there is a clue we can see in that file as to what is going on?

    Also, do a Save Parameters action on your computer while using MKTOOL to write a .mkp file to the computer's disk -- and also post that .mkp file.

    Let's see if we can get the MK software to tell us what it's doing....

    Andy.
     
  15. Jason Smoker

    Jason Smoker Active Member

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    ok great now to find a stair case wide enough in Tokyo to test the theory with-out people or someone harassing me while i do it! :(
     
  16. Gustavo Rios

    Gustavo Rios Member

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    Jason, check my post #24
     
  17. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Just find a local hill! The copter doesn't know it's a hill! :)

    Andy.
     
  18. Jason Smoker

    Jason Smoker Active Member

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    gustavo you have a dx8 right? you proved it works under this conditions?

    If so then the story ends here if not i will go and test it pity i have to drive 40mins to be outside of tokyo to find a hill! haha tokyo love!:(
     
  19. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Jason: Before you become a hill-seeker, just try powering up the copter on the floor and then fire up the motors to more than 40% throttle, then lift it off the floor and park it on a table. That should be sufficient. It might be that you don't even need to lift it on to the table for the GPX file to start recording. I'd hate to make you trek through Tokyo traffic if you don't have to.

    I've got a question for you -- unrelated -- I'll PM you.

    Andy.
     
  20. Gustavo Rios

    Gustavo Rios Member

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    Jason, works for me, should also for you, but I need that this test work in earth without touch the CS6, but this test is only to see that the failsafe works, another thing is setting failsafe mk for auto landing the CS6, should take into account weight, lowering speed, time etc, and yes, I use DX8 with spectrum dsmx satellite.

    Gustavo.
     

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