Discussions

Pixhawk flip crash after 3.1.5 install

Posted by david hitchcock on June 25, 2014 at 2:17pm

Hi,

last weekend I installed arducopter  3.1.5 on my Pixhawk.  Its  a quad running sunnysky 3108 720's afro20aESC's.  After I did the FW  change, I noticed MOT_TCRV_MAXPCT was like 89, was highlighted in yellow. I set it down to 80, which made the yellow warning goaway.  anyway I did a test flight, and twice (2 different test flights) the quad fell from the sky as if a motor stopped. after reviewing the logs,  I see a mechanical  failure.  my question is the mot_tcrv issue related, also, am i missing something in the logs?

Im not very experienced in analyzing logs, and any help is greatly appreciated!  also attached is the full log, with the crash at the end.3691132034?profile=original

2014-06-23 08-08-06.log

2014-06-23 08-08-06.log.gpx

You need to be a member of diydrones to add comments!

Join diydrones

Tags: 315, analysis, arducopter, crash, esc, failure, issue, log, logs, maxpct
Email me when people reply –
Follow

Replies

  • Dave June 27, 2014 at 7:51pm
    Put the value back it is a error in mission planner that was never fixed. Found this in another thread. Mine shows the same thing.
    • david hitchcock > Dave July 1, 2014 at 8:51am
      Mp wont accept the old value of 89. I put it in, and it just refreshes back to 80.
    • david hitchcock > Dave June 30, 2014 at 3:07pm
      Thanks! I will try that this evening. I flew it today, just a test, 3-4 feet up. Needed a lot of throttle just to hover. I'm thinking it's related
    • david hitchcock > Dave June 28, 2014 at 7:28am
      Thanks Dave. I hope I remembered the original value correctly! I think it was 89. Any idea how to find that out?
      • Mark Slater > david hitchcock June 30, 2014 at 2:02pm

        You could do an Erase in CLI which will put all the defaults back so you can look at them, Save your current config first and re-load it after.

  • david hitchcock June 27, 2014 at 3:56pm
    I just noticed my signal wires, wrapped around a ferrite ring, semi cut, due to friction by clean plate on my flip frame. Prob what caused signal loss?!?
  • david hitchcock June 25, 2014 at 2:27pm
    I forgot to add, it was running great before I changed to 3.1.5. Dozens of flights..
This reply was deleted.

Activity