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Author Topic:  Strange Naza Behaviour  (Read 1184 times)

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heliguychris

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Strange Naza Behaviour
« on: May 23, 2013, 12:26:41 PM »

Hey guys, i noticed something strange with my lil naza quad over the last few days since the latest firmware update.

When all is well, the naza flies great.

I have noticed a few times, in gps mode, the heli goes nuts.
Basically it will hold fine for a while, then develop a small sway, that basically develops really quickly to an out of control rock and roll, eventually leading to a flip if you dont punch out of gps ito manual.

Each time i have had this happen, i noticed a unusual pattern in the led indicators.

 Normally it will flash fast green on start up, then give the orange warm up light indicators, then flash 3 red, then 2 red then 1 red then no led, once it has picked up 9+ sats.

 When i have had mine goes nuts, i noticed it does an extra green series of flashes, just before you get to the arm motors part.

HTH
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    Deet

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    Strange Naza Behaviour
    « Reply #1 on: May 23, 2013, 12:44:58 PM »

    Are you sure its the latest, there was a new version late last week

    I found a serious bug with the initial v3 release
    « Last Edit: May 23, 2013, 04:59:52 PM by Deet »
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      PeteDee

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      Strange Naza Behaviour
      « Reply #2 on: May 23, 2013, 04:23:21 PM »

      Make sure you are updated to the V3.12 firmware, requires download of new V2.12 Assistant software and then do all the calibrations including the advanced and GPS calibration dance. Some have had to do the stick calibration a couple of times before it would stick with the V3.10 firmware.

      I have had no problems so far on either of the V3.xx firmwares with several Naza's but a few have so worthwhile having a look at the multorotor forums here, http://www.multirotorforums.com/forumdisplay.php?66-DJI-NAZA-flight-control-system

      Cheers.

      Pete
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        beans07

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        Strange Naza Behaviour
        « Reply #3 on: May 23, 2013, 04:42:39 PM »

        I have 3.12 and find with faster descents my TBS wobbles all over place and gets unstable in GPS mode. I haven't had it flip though. It might be just a limitation in what I am trying to achieve.
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          PeteDee

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          Strange Naza Behaviour
          « Reply #4 on: May 23, 2013, 07:01:24 PM »

          I had one in a 450 quad that I have stripped out and loading into a TBS Disco setup, interested to know what gain settings you are using, I had mine rock solid on the 450 quad frame, almost uncanny how smoothly it desended. What motors and props are you using?

          Cheers

          Pete
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            heliguychris

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            Strange Naza Behaviour
            « Reply #5 on: May 23, 2013, 11:15:14 PM »

            Mine was 3.10, just loaded 3.12 on it, which is their v2 eh? cool!
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              PeteDee

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              Strange Naza Behaviour
              « Reply #6 on: May 24, 2013, 05:26:12 AM »

              I think you would need a brain transplant if you tried to work out their software and firmware numbering. :confused:
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                Countcrashalot

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                Dji naza problems an solutions
                « Reply #7 on: June 24, 2013, 06:20:53 PM »

                Hope this may assist someone...

                I recently set up a DJI Naza Ver 1 on a DJI F550 frame (previously flying with a DJI Wookong M). I immediately experienced lots of 'problems' - mainly with a strong inter-action with pitch / roll when yaw was applied (in GPS mode). I then tested the hexi in 'Atti' mode - as soon as it lifted into hover, it scuttled off 'backwards and sideways' requiring a strong stick input to stabilise it.

                I talked with Jason at OzCopter (http://www.ozcopters.com) where I purchased the Ver 1 Naza. Jason has been extremely helpful and supportive throughout this episode.

                In the fist instance, the radio (JR) wouldn't communicate with the downloaded Naza client / the hexacopter. On Jason's advice, I updated firmware / software to the latest from DJI. That fixed that issue.

                Re the second problem (described above) - after discussing with Jason - I carried out an 'advanced' IMU calibration - using a heli digital pitch gauge to get everything exactly level (packed up with business cards). Completed the calibration as set out in the setup client; tested - sweet as a bird! behaves very well in atti mode; yaw inputs no longer a problem. In GPS mode - rock solid! I'm impressed!

                Setup: Standard (genuine) DJI F550 frame with T-Motor 2260 motors / Graupner Electrofly 10X5 props; RC Timer 40A Simon K flashed ESCs; AeroXcraft cantilever landing gear (brilliant to achieve correct COG); AeroXcraft GoPro H3 Belt driven gimbal with Hoverfly control. 5000mah 4S (9:30 flight @24%). Will proceed with tuning - from previous experience, really good gimbal / video performance, great platform.

                Hope this helps someone...

                Les
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