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Gimbal behavior when picthed/rolled >45(ish) degrees

Discussion in 'Phantom 2 Vision + Discussion' started by varmint, Apr 18, 2014.

  1. varmint

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    Is it "normal" for the P2V+ gimbal to sort of "die" and point downward when the A/C is pitched or rolled excessively? I know this won't happen in normal flight, but if you simply turn on the battery and manually start moving the body around at those angles, the gimbal (on my P2V+) does this, and it's somewhat disturbing not knowing if it's normal. I can see why it would be a good idea, since those angles would most likely be consistent with an imminent crash while airborne, and perhaps the gimbal is just trying to protect itself, but it's disconcerting not knowing if it's the intended behavior.

    Do they all do this?
     
  2. skyhighdiver

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    Re: Gimbal behavior when piched/rolled over 45(ish) degrees

    Video?
     
  3. MikesTooLz

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    Re: Gimbal behavior when piched/rolled over 45(ish) degrees

    can you post a video of exactly what its doing?
     
  4. varmint

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    Re: Gimbal behavior when piched/rolled over 45(ish) degrees

    Ugh, I guess that means it's not normal:(
    www.vrsimulations.com/downloads/Gimbaldeath.MOV

    Note how the gimbal just "dies" when I bank/pitch more than about 45 degrees. Nobody else's + does this?
     
  5. Dirty Bird

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    Don't have mine yet to compare, but that looks weird. It seems to be going limp, but when it does you seem to be tilted past angles you would experience during "normal" flight.
     
  6. EMCSQUAR

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    Re: Gimbal behavior when piched/rolled over 45(ish) degrees

    That's very reminiscent of Zenmuse going into "hibernate mode" when in high winds or hard banking at high speeds.
     
  7. varmint

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    Yes, the angles are definitely the kinds you'd be at if you were in trouble. It could be the gimbal protecting itself, which I would totally understand. I just hope it's supposed to be doing that...
     
  8. MikesTooLz

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    Yes, when you reach that angle it goes into hibernation mode as to no stress the motors to much.

    The good thing is that it springs right back to life, the H3-2D had to be manually brought back to life.


     
  9. varmint

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    Very nice, thanks much for clearing that up:) It's probably a RTFM thing, but I hadn't seen it, so thanks again.
     
  10. BlackTracer

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    Well the good news is it returns to normal operation when the angle is < its failsafe gimbal protection threshold. I like the fact that it protects itself. Way to go DJI!!! So who cares if it is limp during vertical compass cal? I don't.

    oops Mike already commented on the good news.