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Can Arm, But Motors Don't Spin

Posted by Claire C on July 15, 2016 at 9:25am

Hello all,

I am new to RC and have been scouring forums to try to find the solution to this with no luck.

I have a quadcopter that I am trying to control with a PixHawk (PX4). I included a video of my wiring and start up procedure if that helps. In it, you can see I power the system and, wait for the PixHawk to finish its start up sequence, then plug in the motor signal wires and immediately press the safety switch until it is solid (notice the ESCs do not seem to activate as they don't beep). I then successfully arm the system (it's hard to see in the video, but the main LED goes solid blue). And then I try the throttle but there is no response from the motors. 

I was able to successfully calibrate my transmitter and it is bound to my receiver. I can spin the motors and calibrate my ESCs via my transmitter/receiver only, but get no response from them whatsoever with the PixHawk. 

Any help would be hugely appreciated!

Thanks,

Claire

 https://www.youtube.com/watch?v=_NgTQXI17go

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Replies

  • Claire C July 15, 2016 at 12:40pm

    Thanks George. I will try it again with them plugged in. The reason I had them unplugged for startup was due to concerns that they would time out before they could get a signal while the PixHawk goes through its initialization. 

  • George Kelly July 15, 2016 at 10:02am

    First suggestion, Claire:

    Plug the escs into the pixhawk before start-up (not after).

    There's no need for them (ever) to be unplugged from the FC.

    George

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