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Old Feb 20, 2012, 03:31 PM
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United States, VA, Fairfax
Joined Feb 2012
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Help!
ESC and motor hookup question

I have a Sky Walker 20A ESC and an A2212-13 Brushless Outrunner Motor

I have no idea what the wiring sequence on these are.
3 black wires on the ESC and 3 colored wires on the motor and no instructions.
Does the order matter? I can't seem to find anything anywhere.

It has been about 20 years since I got rid of my stick built, two stroke plane and getting into it again.

Thanks.
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Old Feb 20, 2012, 03:38 PM
Lysdexic I'm
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Spring, TX
Joined Oct 2010
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Plug them in and bind you tx/rx. Once you do, slowly press the throttle (preferably with no prop attached) and if the motor turns the wrong way, simply switch any two wires regardless of color.
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Old Feb 20, 2012, 04:06 PM
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Thanks! It sounds like either way I can't burn anything up. I will give it a try.
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Old Feb 20, 2012, 05:07 PM
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HBGB is 100%
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Old Feb 21, 2012, 02:17 AM
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New Zealand, Canterbury, Rolleston
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What I'd like to know, statistically, the chance of getting it right first time? So far two wrongly wired first time and one right - but the right one was a pusher so would have been wrong if it had been a tractor... ???
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Old Feb 21, 2012, 06:30 AM
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Canada, ON, Rockland
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Quote:
Originally Posted by Mac50L View Post
What I'd like to know, statistically, the chance of getting it right first time?
Since there is only 2 direction the motor spins I think you have a 50/50 chance of getting right
Quote:
So far two wrongly wired first time and one right - but the right one was a pusher so would have been wrong if it had been a tractor... ???
Brushless motors and esc have 3 wires, the color coded one are generaly a manufacturer thing where they color code their motor and esc for easy connection for most of there plane setups. Example - HH/E-flite using Red/Blue/Black.

Regardless of color coding, all you need to do is connect all 3 wire and test, if you have it wrong then you simply SWAP 2 and ONLY 2 of the 3 wires and this will change the direction of the motor.

Some ESC have the ability to change the motor direction with programming making connecting the wire in proper order a thing of the past.
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Old Feb 21, 2012, 10:13 PM
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United States, IA, Bettendorf
Joined Jan 2012
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Quote:
Originally Posted by freechip View Post

Regardless of color coding, all you need to do is connect all 3 wire and test, if you have it wrong then you simply SWAP 2 and ONLY 2 of the 3 wires and this will change the direction of the motor..
Received a new heli (Hausler 450 clone) today. I get NO rotation of the motor. Vendor hasn't called me back yet and likely won't hear from them till tomorrow.

Any troubleshooting I can do? Quick voltage measurements? It was a RTF model. CT6B radios. Servos all work, just no spin-up. Pulled the motor gear for safe measure.
(I know this ended up in the wrong forum)
Thanks!
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Old Feb 22, 2012, 05:44 AM
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Canada, ON, Rockland
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Most setup require an arming procedure sometimes, esc needing to be armed. Have you check that?
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Old Feb 22, 2012, 07:51 AM
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Orleans, MA
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Sometimes, the throttle channel has to be reversed. I had the same problem with my Futaba radios until channel 3 was reversed.
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Old Feb 22, 2012, 08:55 AM
Lysdexic I'm
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Spring, TX
Joined Oct 2010
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You might also try trimming down your throttle to see if it arms. The ESC won't allow the motor to turn even if your throttle is only slightly up. Sometimes a couple clicks down on your trim will boot her right up.
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Old Feb 23, 2012, 02:26 AM
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And make sure or try with the trim at zero too. On my Tx it is all the way down, not at the mid point.
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