Hello everybody,
at first, english is not my native language, but i hope to explane so good as possible.
My hexacopter crashed a few days ago in the trees, after the failsafe jumped into RTL-Mode, because i forgot to set the failsafe off for lost connection to my tablet pc.
Ok, today i was flying outside on the field again and would try to test the RTL-Mode one more time, but my hexa crashed down from more than 28m like a stone after i switched on the RTL-Mode.
After my full crash and four pieces broken frame and a lot of damage in my head i analyzed the last logfile.
I cant find some issues,... nothing.... no RTL-Mode logged, no stopped motors,... really nothing.
Is anybody here, to analyze this logfile again?
It´s not possible to find nothing!
I changed RTL-Mode and all motors stopped at same time.
Thank you very much, to do your best and hope to find something strange.
I used arducopter version 3.2 rc5.
Greets from germany ;-)
Replies
I see nothing unusual, except for sudden power loss /end of log at ~30M AGL
You should check the power supply to your Pixhawk, and add some redundancy.
Are you shure?
What do you mean with "redundancy?
I checked all wires at first and cant see any difference before the flight :(
ESC's have their own power supply. - they often beep on PWM loss.
PWM goes away when pixhawk loses power. - so they beep. (Pixhawks PWM microcontroller shuts down too)
Redundancy; Pixhawk is able to take up to three different power sources, and switch intelligently between them, both at too low/high voltage, with priority.
Thanks, i understand it.
My Pixhawk was connected with 5v from the 3DR Currentsensor and second with an external 5v BEC.
And i cant understand why it should lost the power, when i swiched to RTL Mode....?
Do you mean it was purely coincidence?
if you have a working redundant power supply, (if you can disconnect the 6p DF13 the primary (powermodule) , and pixhawk continues to run)
THEN this is a clear sign of possible software crash, you are running beta - 3.2
Later i will check this out.
At first i clean my motors and solder the ESCs on the new frame
???
oops, my bad -(posted some ansers to wrong threads.)
- in your case log ends suddenly at ~19200 - most likely a los of power to pixhawk, check it's power (+5v) and add some redundancy.
I uploaded to my dropbox.... Here it is:
https://www.dropbox.com/s/1iqp2y8omnzf5gk/Crashlog%20Hexacopter.rar...
unable to download file..