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A3 Dangerous Spinning Yaw Axis Error
3903 14 2016-7-28
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skyguide
lvl.1

Switzerland
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What could be the problem for this flight behavior? Good to see at 2:20
Newest firmware, compass recalibrated, IMU recalibrated, RC recalibrated.

2016-7-28
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DJI-Jamie
DJI team
Flight distance : 112405 ft
United States
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Could you clarify what frame and tuned propulsion you're using? Have you tried adjusting your attitude gains and Expo settings?
2016-7-28
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skyguide
lvl.1

Switzerland
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DJI-Jamie Posted at 2016-7-29 00:02
Could you clarify what frame and tuned propulsion you're using? Have you tried adjusting your attitu ...

It is a self-made frame, a hexacopter with 6x T-Motor MT4006 740Kv and 6x Maytech 30A with SimonK Firmware.

Had no problems with the A2.

Yes I tried to adjust these parameters, it didn't help.
2016-7-28
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skyguide
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Switzerland
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skyguide Posted at 2016-7-29 00:34
It is a self-made frame, a hexacopter with 6x T-Motor MT4006 740Kv and 6x Maytech 30A with SimonK  ...

I mounted the same A3 on a different drone to exclude the possibility that it might be a faulty ESC or motor. The flight was even worser on that drone.
I don't think it is a problem of my drone because the second drone has different motors, props and ESCs.

I just did a short test flight. But that was enough:



I put a cord on it to avoid a flyaway as I don't trust this controller anymore.
2016-7-31
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skyguide
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Switzerland
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DJI-Jamie Posted at 2016-7-29 00:02
Could you clarify what frame and tuned propulsion you're using? Have you tried adjusting your attitu ...

No answer from DJI yet?

I found this video on Youtube:

In that case DJI replaced the entire M600.

Looks like it is a A3 problem as it also exists on the M600.
2016-8-4
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Tahoe_Ed
Captain
Flight distance : 2605 ft
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Sky, it appears that you may have a bad A3 but I would like to ask a few questions.  What are your IMU mod values.  Can you show us a screen shot of the placement of the GPS puck and the x, y and z values.  Thank you for your assistance.
2016-8-4
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skyguide
lvl.1

Switzerland
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Sorry no time at the moment to test these things as I have to work and therefore I switched back to the A2 which works good on both...
2016-8-14
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jbourne
lvl.1

United States
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My A3 is having similar problems, but I have only flown indoors (I will post a video when I can).  I am using a custom frame with T-Motor MT4004 300Kv with RTF BEARHUGESC 18AMP 2S-6S 3.0 with BLHeli 14.3 Firmware (400 hz compatible).

My A3 fails on compass calibration 90% of the time, it is very difficult to finish the calibration completely.  Once It has been calibrated, moving the quad around only a meter or so causes it to need compass recalibration (blinking yellow and red on the LED status).  

any solutions to this problem?
2016-8-19
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jbourne
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United States
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jbourne Posted at 2016-8-19 15:04
My A3 is having similar problems, but I have only flown indoors (I will post a video when I can).  I ...

Here is a video showing the yaw issue.




I need to solve this issue asap, so any ideas how to fix this would be great.
2016-10-31
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AlexisTM
New

Belgium
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Same problem here...
@0:50, it begins to spin CW with CCW command at maximum


Octo-Quad frame, T-motor U7 x8, A3 pro, DX9 controller (DSMX).

The copter was unable to turn CCW and easy to turn CW. After 2 minuts, it began to turn CW by itself.

2016-11-8
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fans527473ad
New

United States
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AlexisTM Posted at 2016-11-8 06:27
Same problem here...
@0:50, it begins to spin CW with CCW command at maximum
https://www.youtube.co ...

video is private btw
2016-11-16
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fans527473ad
New

United States
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jbourne Posted at 2016-10-31 07:49
Here is a video showing the yaw issue.

video

Ended up being a frame issue...
2016-11-28
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geoffreyb
lvl.1

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hi i seem to have simular issues with my X8. i get drift when traveling backwards and coming to a standstill
2016-11-29
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RohitR
lvl.1
Flight distance : 12267 ft
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India
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I am facing the same issue. Can some one help it troubleshoot the issue please.
2017-2-26
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RohitR
lvl.1
Flight distance : 12267 ft
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India
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Here is a link to the Log file pulled out form the A3.
https://drive.google.com/file/d/0BxkX_rT7AkldaklpeHVPM21ZZG8/view?usp=sharing
2017-2-26
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