[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Paparazzi-devel] Strange Surging Behavior

From: jlastuka
Subject: RE: [Paparazzi-devel] Strange Surging Behavior
Date: Mon, 12 Jul 2010 13:31:04 -0600
User-agent: Internet Messaging Program (IMP) H3 (4.2)

Yves, Felix, and Jon,

You guys were indeed correct! When I power my servos externally everything seems to work great! Thanks so much for taking the time to help me out, I would not have figured that one out on my own.

What is the simplest / least weight causing way to wire the servos externally? I just used a battery pack with 4 AAs, but I don't want extra weight. Also, I am not familiar with what BEC stands for... perhaps that would clear things up!

Thanks again,

Quoting "Yves Touchette" <address@hidden>:

There has been many discussions about this, but it doesn't look like lthere is alot of documentation about this in the wiki.

The usual approch is to use a ESC with a good (Switching) BEC to power the servo. As other have indicated, your datalink modem may also use a good chunk of the power that your auto pilot can provide.

Keep in mind that the ground from the BEC and the ground from your AP is already the same (assuming you are using a single battery). Therefore you do not need to connect the ground of your BEC to your AP (you'll create a ground loop).


Date: Mon, 12 Jul 2010 11:31:52 -0600
From: address@hidden
To: address@hidden
Subject: RE: [Paparazzi-devel] Strange Surging Behavior

The Servos are hooked up to the outputs on the AP board... there are
two aileron servos, rudder servo, and elevator servo. I am not aware
of any alternate way of setting up the servos... is there any way to
test if the voltage regulators are being overloaded?

Quoting "Yves Touchette" <address@hidden>:

> How are you powering your servos?
> It's pretty easy to overload the voltage regulators on the AP with servos...
> It could be a alot of other things and I'm not an expert, but I
> throwing this as an idea...
> -yvest
>> Date: Mon, 12 Jul 2010 11:07:07 -0600
>> From: address@hidden
>> To: address@hidden
>> Subject: [Paparazzi-devel] Strange Surging Behavior
>> Hello All,
>> I am experiencing some strange behavior from my TWOG after uploading a
>> new airframe file. I originally had the easystar2.xml uploaded and
>> installed in my easystar and had great results, we flew basic flight
>> plans in auto2.
>> I have now installed the system into my Multiplex Cularis and have
>> uploaded the attached airframe file (I got it from Maik, originally
>> from Hendrix) and am experiencing some strange behavior. The problem
>> occurs in both auto modes and also when switching modes. The system
>> seems to get lost in surging cycles that last from 2 to 30 seconds.
>> The ailerons, rudder and elevator all jolt about once per second and
>> all radio control and telemetry communication are lost during the
>> surging cycles.
>> Interestingly, if I unhook my ailerons, the problem disappears. And
>> strangely, if only ONE aileron is hooked up, everything works as it
>> should. Only when I plug in both ailerons do I get the erratic
>> behavior. When I move my hands around the IR sensors the control
>> surfaces move as expected, but then the system will suddenly go into
>> the described jolting cycle for 2-30 seconds, then return to normal.
>> I have attached my new airframe file, as that is the only difference I
>> have made from my previous successful settings.
>> Any help is greatly appreciated.
>> Thanks,
>> Jeff
> _________________________________________________________________
> Learn more ways to connect with your buddies now

MSN Dating: Find someone special. Start now.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]