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Old Jan 24, 2013, 04:42 PM
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United States, CA, Lake Forest
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Quote:
Originally Posted by SU-4ever View Post
ESC Synchronization.

My stock ESCs died, replaced them by 70A cheap ones one with bec one without but same model and when powered up the fans turned at different RPMs. They even started turning at different stick positions. Then changed the ESC with BEC by the same model without BEC and put a separate BEC and tried again. Same issue. Then tried to fix it programming and no progress. Then somehow one of the ESCs and the external BEC fried on the ground. And now I'm still waiting to put a new order on a couple of neww ESCs and a different external BEC.
Stop buying cheap crap!!!

get castle creations and be done with it....
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Old Jan 24, 2013, 04:44 PM
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United States, CA, Lake Forest
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Originally Posted by v8truckin View Post
No way jose I wouldn't use em. Those xt90 rated @ 90a , genuine ec5 are rated @ 120a continuous 160a peak & XT150 @ 250.
XT150 all the way!!!!!! use em on everything over 60amps.

Granted overkill but id rahter be safe than sorry.

I've lost 2 planes due to Deans connector failures, wont happen a third time..
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Old Jan 24, 2013, 04:55 PM
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United States, AZ, Tucson
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The SU35 beeps?
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Old Jan 24, 2013, 05:00 PM
Should've, Would've, Could've
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Quote:
Originally Posted by goldsworthy View Post
The SU35 beeps?
not sure what that means, but if I had to take a guess...

Either your using the wrong cell lipo , your esc throttle isn't calibrated, or you need to adjust your throttle trim tabs till the esc engages then calibrate throttle.
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Old Jan 24, 2013, 05:13 PM
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Australia, VIC, Melbourne
Joined Nov 2006
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All brushless motor electric models 'beep'. It is a normal ESC startup sequence.
Even the real Su beeps.....
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Old Jan 24, 2013, 05:55 PM
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Yes true they all beep, but beeping is an indication of a certain or specific sequence ie. Startup sequence, program mode, receiver & radio not binding, wrong cell# etc. So Gold needs to clarify what he is doing when it beeps.
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Old Jan 24, 2013, 05:58 PM
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United States, NM, Clovis
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Quote:
Originally Posted by v8truckin View Post
Yes true they all beep, but beeping is an indication of a certain or specific sequence ie. Startup sequence, program mode, receiver & radio not binding, wrong cell# etc. So Gold needs to clarify what he is doing when it beeps.
I dont think he is saying his is beeping. I believe it was a question in response to PeterVRC saying esc's needed to be connected to motors because the motors do the beeping.
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Old Jan 24, 2013, 06:01 PM
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And his Su is probably not in a 'beepable' state yet either. hehe
(Is AZ a beepable state?)
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Old Jan 24, 2013, 06:24 PM
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Gold, don't you normally hear the beep beep beeeee BEEP, when you start your quads. It should be very loud with four of them going off exposed.
You can program some ESC's to start silent but ESC default to a power up state and warnings announcement through the motors pulsed turn, once the ESC and Motor are powered up.
When you are programming the ESC the beeps you hear telling you the programming point as well as confirmation of selections.... the sound is produced from the motor being pulsed.

Some get carried away with this and play entire music pieces with the use of several motors and control board.
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Old Jan 24, 2013, 06:43 PM
IWC
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In post #6276, what EDF aircraft is taxing in?
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Old Jan 24, 2013, 06:51 PM
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Quote:
Originally Posted by IWC View Post
In post #6276, what EDF aircraft is taxing in?
PM mw46mw46 to be sure. Its his field so he would likely know but looks like the HET or FlyFly Mirage.
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Old Jan 24, 2013, 07:21 PM
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That looks like FlyFLy Mirage

Quote:
Originally Posted by v8truckin View Post
Su,
Just get some hobbywing escs never had a problem sync em
Thanks for the advice! I will consider it!

Quote:
Originally Posted by goldsworthy View Post
THATS ALOT OF STUFF TO GO BAD! I wonder how so many things could burn out at the same time?
I keep asking myself the same. I think it might have to do with bad soldering (High temperature damaging ESC / BEC electronics).

Quote:
Originally Posted by Wargassm View Post
Stop buying cheap crap!!!

get castle creations and be done with it....
No, If I had to buy CC for every aircraft I have I'd as soon quit the hobby, don't have so much money. Though I agree this time I'm suffering the effects of a too much cheap election. I don't tend to have any kind of trouble with cheap stuff.
Will go to hobbywing Dlux or Redbrick next time.

Cheers!
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Old Jan 24, 2013, 07:41 PM
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United States, CA, San Diego
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Power Sys fault

Ok pilots, I tested my 4s set up in my Su35 with a Watts Up meter-- I fried the meter--it started smoking, maybe because its 14AWG and entire plane is 10AWG, anyway I tested again w/o, both times at around 1:40 I was at about 70% throttle and a few short burst at 90% the following happens as you'll see in vid- v were above 15 so I'm at a loss, ESCs, ARC motors?

ESCs: Cyclone 110A, Motors: ARC 28-58-1s, EDFs: CS12B 70mm fans, BATTS: CNHL 14.8 4s 50c 100c burst LiPos in parallel

Any ideas guys????


EDF (0 min 55 sec)
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Old Jan 24, 2013, 08:35 PM
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Sounds to me like either a connector failing, cold solder or you battery is having problemos
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Old Jan 24, 2013, 09:08 PM
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United States, AR, Jacksonville
Joined Jul 2004
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Quote:
Originally Posted by v8truckin View Post
Sounds to me like either a connector failing, cold solder or you battery is having problemos
If that isn't the issue, I suspect your ESC can't handle the amount of RPM that the motor is trying to turn at. If the pulsing sound is not what you were trying to get at, then disregard my message.

On second thought, there could be an ESC timing advance and/or PWM setting issue as well.
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