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imu gyroscope normal values... avoid flyaway
2191 15 2015-5-5
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tom
lvl.2
Flight distance : 186549 ft
Italy
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today i got my second terrible flyaway experience but i recovered the drone dont know how...

now i m checking everythink... every value of sensor

i think problem was the compass because when i connected to pc and tried to move the phantom values moves from 600 to 3000
randomly....

after many houres i tried again and now value stay in the range of 1000 to 1700....


i saw another thing...when i move the phantom connected to pc other mods value are going very high like gyroscope mod arrive to 70/80
is tath normal?

acceleration mod also move to 1.0 to 1.03...

i want to be sure everything is ok before next fly... totaly scaried now
2015-5-5
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johnwarr
Captain
Flight distance : 6467 ft
United Kingdom
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The values will change if you move it around.
If you click on the ? on the IMU screen it tells you what the range should be.
I would do the IMU calibration but make sure its done on a completely level surface with no movement, then take it outside and do the compass again.
2015-5-5
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tom
lvl.2
Flight distance : 186549 ft
Italy
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when i move the phantom all values goes out of range... is tath normal??
2015-5-5
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I. P. Freely
Second Officer

United States
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Tom, we were talking about the Advanced IMU Calibration yesterday.( Help with Rotation)  It appears you have a problem with that calibration as you suggested several other things before an Advanced Calibration of the IMU.  My question for you is "What did you do after the first issue with flyaway?
2015-5-5
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I. P. Freely
Second Officer

United States
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Did you do an Advanced IMU Calibration after the first incident?  
2015-5-5
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johnwarr
Captain
Flight distance : 6467 ft
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tom@coletta.it Posted at 2015-5-6 09:48
when i move the phantom all values goes out of range... is tath normal??

Forget about moving the Phantom, all you need to do is the calibration as described above.
2015-5-5
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tom
lvl.2
Flight distance : 186549 ft
Italy
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yes all the problem started with an imu calibration...

i m asking about value when moving phantom to know if naza module is working correcly...

i had 2 flyaway in 2 days... and i cant understand whats wrong

2015-5-6
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johnwarr
Captain
Flight distance : 6467 ft
United Kingdom
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How exactly are you doing the IMU calibration ? And on what surface ?
Did you then go outside in the open and calibrate the compass ? No magnetic objects or interference nearby ?
2015-5-6
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joe
lvl.4

United States
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Tom,
When you move the Phantom the values should change.  This is normal because the sensors are detecting movement of the copter.
As noted by others when you do calibration the copter should be perfectly still.  The only values you should be concerned about are the values when the copter is not moving at all.
2015-5-6
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tom
lvl.2
Flight distance : 186549 ft
Italy
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i know i laready discovered tath :

http://forum.dji.com/forum.php?m ... mp;page=1#pid111578
http://forum.dji.com/forum.php?m ... mp;page=5#pid111524

i was asking about sensor to be sure naza was ok
2015-5-6
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Gerry1124
Captain

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tom@coletta.it Posted at 2015-5-7 02:54
i know i laready discovered tath :

http://forum.dji.com/forum.php?mod=viewthread&tid=13716&page=1#p ...

There is no way to check the sensor while it is moving.  There is no set value of the numbers while it is moving.  All you can do is to calibrate it while it is still and insure the numbers are within the recommended ranges.
2015-5-6
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tom
lvl.2
Flight distance : 186549 ft
Italy
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anyway i think my compass is not working as it should do... so i will replace and see
now i m unable to complete a compass calibration and i when connected to pc i see very strange value going to 1200 to 2700 randomly...
and one time i got a msg on the phone app that said my compass require maintenance

let's see...
2015-5-6
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roy
First Officer

United States
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Don't fly without getting a good compass calibration or without have done a IMU calibration if you moved the copter while doing it.... DON'T move the quad while doing the IMU calibration. To much money at stake for a fly a way.
2015-5-6
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I. P. Freely
Second Officer

United States
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I suspect you might have another flyaway after you replace the compass because of your thoughts on the Advanced IMU calibration.  Good Luck!
2015-5-6
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Xcammer
lvl.1

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johnwarr@live.c Posted at 2015-5-6 20:43
How exactly are you doing the IMU calibration ? And on what surface ?
Did you then go outside in the ...

This post made me take a second look at the surface where I last calibrated my P2V and I have noticed the desktop surface to have a 2 or 3 degree slope. I will recalibrate mine tomorrow and see if it flies a little more stable.
2015-5-6
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tom
lvl.2
Flight distance : 186549 ft
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I. P. Freely Posted at 2015-5-7 11:00
I suspect you might have another flyaway after you replace the compass because of your thoughts on t ...

whi....???
i hope this will fix my problems :/
2015-5-7
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