WattFlyer RC Electric Flight Forums - Discuss radio control eflight

WattFlyer RC Electric Flight Forums - Discuss radio control eflight (http://www.Wattflyer.com/forums/index.php)
-   General Electric Discussions (http://www.Wattflyer.com/forums/forumdisplay.php?f=3)
-   -   osilating Motor (http://www.Wattflyer.com/forums/showthread.php?t=73882)

egrave1 06-12-2014 04:33 PM

osilating Motor
 
I have a motor that when I throttle up the motor sits there and goes forward and backwards what could be the problem

JetPlaneFlyer 06-12-2014 06:44 PM

Nine times out of ten it's a bad connection or bad solder joint on one of the three bullets between motor and ESC.

Other less common causes are a motor lead that's broken under the insulation, or burned out winding, or a faulty ESC.

Larry3215 06-17-2014 08:24 PM

Quote:

Originally Posted by JetPlaneFlyer (Post 950375)
Nine times out of ten it's a bad connection or bad solder joint on one of the three bullets between motor and ESC.

Other less common causes are a motor lead that's broken under the insulation, or burned out winding, or a faulty ESC.

+1

xmech2k 06-17-2014 09:09 PM

Egrave, is it really going forwards and backwards, or just pulsing the power? If just pulsing, then JPF is probably right. If really going fwd/reverse, it probably needs to be exorcized!

Larry3215 06-17-2014 10:43 PM

Ive seen the forward/reverse thing quite often with bad connections. How it behaves seems to depend on how bad the connection is.

ron_van_sommeren 06-17-2014 10:52 PM

Don't play with throttle when this occurs, you may burn motor and/or controller.

Larry3215 06-17-2014 11:03 PM

Quote:

Originally Posted by ron_van_sommeren (Post 950732)
Don't play with throttle when this occurs, you may burn motor and/or controller.

Excellent point Ron. The current will go through the roof whenever the motor isnt spinning.

P.S. I almost didnt recognize you Ron! You lost the hat! :)

ron_van_sommeren 06-17-2014 11:18 PM

Quote:

Originally Posted by Larry3215 (Post 950735)
... P.S. I almost didnt recognize you Ron! You lost the hat! :)

Not the only thing(s) I have lost since my previous picture was taken :D On the bright side, I gained a bit of forehead

kyleservicetech 06-18-2014 01:23 AM

Quote:

Originally Posted by ron_van_sommeren (Post 950732)
Don't play with throttle when this occurs, you may burn motor and/or controller.

Here is where it might be a good idea to temporarily wire in an automotive fuse between the battery pack and the ESC. Typical fuse size would be about 30 - 50% of the ESC current rating.

That way, if your malfunctioning setup is really pulling a lot of Amps, you'll hopefully blow the fuse, not the ESC.


All times are GMT +1. The time now is 10:08 AM.

Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Page generated in 0.08198 seconds with 13 queries