Twitchy motor on throttle up
« on: October 02, 2016, 12:57:49 am »
Anyone experienced this?



Basic Emax Simonk-12A ESC + MT2204 2300KV Motors

« Last Edit: October 02, 2016, 02:08:27 am by hwh »

ernstock

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  • 137
Re: Twitchy motor on throttle up
« Reply #1 on: October 02, 2016, 09:53:04 pm »
Sometimes , yes.
Usually an icky connection.
(Seems that a poor solder joint will somehow behave itself when enough power flowing through it. But an electrical engineer I am not !)
Either one of the three motor wires or the signal wire to esc .

Also poss worth removing motor screws , and any swarf in threads , and 'shortening' screws with a washer. Or use shorter screws.

Re: Twitchy motor on throttle up
« Reply #2 on: October 03, 2016, 12:16:01 am »
Checked the three motor wires. They were good, but I resoldered anyway. I'll check the signal wire. Getting tired of this problem. Sometimes I power up and it flips over because of the one motor twitching.

mak24

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  • 55
Re: Twitchy motor on throttle up
« Reply #3 on: October 03, 2016, 03:13:27 am »
I experienced it.  I ended up ordering a replacement
mak24

My Quad Build
Alien 450
Emax 25 Amp ESC
2212 980 KV SunnySky motor
10*4.5 APC Props
Revo FC
GCS 16.09 Rhino

Re: Twitchy motor on throttle up
« Reply #4 on: October 18, 2016, 10:28:33 pm »
My experience (in order of probability):
- bad factory solder connection on bullet connectors (usually motor side) (resolder it)
- burned out motor wire (replace the motor) (I have rewound motors, but it is more expense and trouble than it is worth)
- burned out ESC (replace the ESC)

I must add:  If all four do it, you may have a mismatch on the ESC signal protocol.  Try PWMSync instead of OneShot, etc.