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Motors Arming Problem...

Posted by Ammar Husain on October 22, 2011 at 9:39am

Hello Guys,

I got everything calibrated according to the steps in the manual. Got the motors spinning during my ESC calibration. I set Ch5 of my radio on to stabilize mode. GPS is currently disconnected.

However I am unable to arm my motors when I connect my LiPo battery in Fly mode. I get the usual 3 ESC beeps and then one final confirmation beep. The A and C LEDs blink for a second or two and then the LED A(green) continuously blinks. I put my yaw stick hard right but to no avail. I went through the Troubleshooting wiki and everything out there seems to have been satisfied.

Could anybody suggest any tests, ways etc? 

 

Thank you!

 

PS: I read through the forum and am scared whether I dont have the same problem as this person:

http://diydrones.com/forum/topics/yet-another-motor-arming?commentId=705844%3AComment%3A349549&xg_source=activity

 

Please help...

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Replies

  • Jason Wise October 28, 2011 at 7:43pm

    @Chris, Im using these on a hexa http://www.hobbyking.com/hobbyking/store/__12191__TURNIGY_TRUST_45A...

  • Ammar Husain October 27, 2011 at 9:20am

    Nope bought it pre-soldered.

  • Ammar Husain October 27, 2011 at 9:15am

    Wow stuff keeps breaking down for me on the Arducopter recently. I uploaded an older version of the firmware on my APM. I then connected my GPS and ESCs to go through calibration process. I am not sure if I disconnected my LiPo before the USB (or taking out the GPS and ESCs), but my APM shut down. Now when I plug in it says 'USB drawing too much power'. I have disconnected everything from my APM and it wont  still start up. IS that the end of my APM??

     

    PS: It would be nice if the manual stated explicitly.. "Do not connect anything else ESC GPS etc when your LiPo is disconnected". I found this reading through other forums. 

  • Ammar Husain October 27, 2011 at 6:41am

    @ John: Yes thats the next thing on my agenda to recheck the radio outputs and try doing another radio setup. 

     

    @u4eke: Were your PWM values that high from your radio tests. I got between 1100-1900 for all my channels, which I am guessing is wrong. Could you post approx values that are correct or work for you?

     

    Thanks

     

  • Moderator
    John Church October 26, 2011 at 2:57pm

    Posting again because I don't know if you saw my post earlier in the thread:

     

    Honestly, Ammar, the range doesn't seem as wide as it should be. I don't recall a hard-low requirement for throttle- it may be completely dependent on calibration during setup- but I seem to remember a hard value that throttle must be below. I will try to find that.

    Anyway, to test this, please go in and lower your low throttle endpoint and see if that helps. After lowering the endpoint you may need to do radio calibration again...

     

    And... your GPS issue. Let's see some pictures of your setup/gear/wiring, etc..

  • Jason Wise October 26, 2011 at 3:46am

    Confirmed I went back to a older revision(.40) and my ESC's arm properly, using the latest firmware does not arm my ESC's

    Help!

     

  • Andrea & Antonio & C. October 25, 2011 at 7:30am

    @ Chris
    all engines have been tuned manually
    connected to the receiver (channel 1 in my case, because I have a Graupner MX-20 with GR-24) all work (one at a time of course)
    When I plug the LiPo, the green led of the APM is fixed, give the command to start engines, the LED flashes, a single engine starts, the shutdown command also works

  • Ammar Husain October 25, 2011 at 7:24am

    @Chris: Yes I have tried multiple iterations through the MP setup and the Troubleshooting Guide. Also try it with Throttle (max) and Yaw (left). In fact I did it to on all the four corners. I verify in APM that my radio sends a signal and the values are (1100-1900) for all the channels.

    I set all the channel modes to stabilize.

    Is there any other way I can make sure my radio is not screwing up?

    Could there be a problem with APM instead? How can I test for that?

     

    @Gabriel: Thanks for the tip. Tried turning off the WiFi at my place.. Still does not seem to work .

     

  • Gabor Muenkel October 25, 2011 at 12:49am

    Hey, first post;) Have you got a 2.4 Ghz remote? If so make sure you are far enough away from any Wi-Fi source or better switch it off completly. I am just due to finish my student project and went crazy about the same problem. The weird thing is that it just seems to effect the arming of the motors. Calibration worked perfectly fine.

    Found out about this problem, because every time i switched on the remote my internet connection broke down ;) Guess this problem can appear to alot of people as they are sitting next to their lap tops while testing the setup.

    Im using the Turnigy 9X v2

    Hope that may solve the probs

     

  • Ammar Husain October 24, 2011 at 11:07pm

    @Jason: Yea seems like we both cannot arm the motors. Though my ESCs do not beep after startup so I guess they are receiving a connected signal. They only beep when I connect the GPS (to the RED board of course!). 

    @ Andrea: I am not quite sure about the resistance values across the channels. So are you not able to arm your motors either? (even the ones that work)

     

    Looks like we badly need some experienced person to help us out. This is critical for me to start my research!!!

     

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