Motor beeps at take off

Posted by Dara Shayda on December 25, 2011 at 7:15pm

Hello

I am testing the arducopter for the first flight and all is well with arming the motors with Dx8 and seemed to be ok.

However all of a sudden in one of the trials three of the motors started beeping as soon as the quad batteries plugged.

One motor after another stopped beeping, few seconds of each other, and all was back to normal. 

I disconnected the battery and reconnected same situation, the motors beep, then few seconds apart they stop and motors armed with no difficulty all seem to be ok.

What is going on?

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Replies

  • Martin Szymanski December 25, 2011 at 8:21pm

    Most esc's will beep if there is no PPM signal at power up.

    I noticed this in the recent build also. Once armed and flown it goes away.

    Make sure your ESC's are calibrated to the controller you are using.

    I calibrate mine individually with the RC controller.

  • Developer
    Jason Short December 25, 2011 at 7:29pm

    Try lowering your throttle trim and recalibrating everything.

    Jason

This reply was deleted.