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Jul 10, 2012, 02:27 PM
Registered User
Help!

Uh, ESC motor-connectors?


So I bought 4 new ESCs for my quad. My motors and old ESCs was color-coded for ease of connection but the three connectors to the motor on the ESC are all red. How do I figure out which ESC-cable to connect to what motor-cable? The ESC is a Turnigy Plush 10A.
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Jul 10, 2012, 02:28 PM
Registered User
Doesn't matter. Connect them up. If the motor doesn't spin the direction you want, swap any two.
Jul 10, 2012, 02:28 PM
Mmmmmmm!
WiseDuck's Avatar
Just hook em up, spool up the motor and see in which direction it spins. Do this without a propeller. If it spins the wrong way, reverse two wires. Easy!
Jul 10, 2012, 02:41 PM
Registered User
Oh ok, thanks. But why is there 3 wires? Positive, ground and signal? Negative for reverse spin?
Jul 10, 2012, 02:44 PM
Ape-pilot Extraordinaire
TS00's Avatar
Quote:
Originally Posted by Rakrul
Oh ok, thanks. But why is there 3 wires? Positive, ground and signal? Negative for reverse spin?
No, magic 3 phase electricity.
Jul 10, 2012, 02:54 PM
Registered User
Aha, so all I need is to find ground then. Thanks again.
Jul 10, 2012, 03:17 PM
Registered User
No ground. Just hook the 3 wires up and like above if it spins backwards swap two of the wires to make it spin the other direction.
Jul 10, 2012, 05:10 PM
Registered User
If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
Jul 10, 2012, 05:23 PM
Registered User
Quote:
Originally Posted by toymasta
If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
Thats not what the Op was asking. That's the servo signal cable.
Jul 10, 2012, 06:47 PM
making crashing a lifestyle!
dutchcommando's Avatar
Quote:
Originally Posted by MankySteve
Thats not what the Op was asking. That's the servo signal cable.
well, no he's talking about the motor/esc wires... but he's wrong..

Quote:
Originally Posted by toymasta
If you look down at the ESC, the wires, from left to right, Signal (usually with a yellow shrink tube on it), Postive Power (red shrink tube), and then Negative power (black shrink tube).
short lesson on three phase motors..
three phase motors do not have dedicated negatives.

all three wires are positive to a (set of) wire winding(s).(poles)
each wire of these windings is connected on one side to esc and the other side to either:
all three wires are connected to eachother (star configuration)
or the end of one pole is connected to the esc wire of the other pole (delta configuration)



changing 2 wires makes the polarization work the other way around.

(trying to keep it simple)


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