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dual esc wiring?

john.

Newbie
Joined
Jan 2, 2012
Messages
9
Location
campbell
So I just got my first crawler! An exceed mad torque. My esc has leads for two motors. I want to run two esc's so Should I tie both leads from one esc to one motor or should I just use one pair of leads? Th
anks!
 
Last edited:
John it sounds like your trying to setup a dig unit with two esc's.

First question would be, what type radio do you have, how many channels? Your going to need at least a 3ch radio to run a dual esc dig.

Heres the wiring broken down in simple steps for dual esc's:

1st. Your going to need a BEC unit.
The one I run is a Castel CC BEC. Can handle batts up to 6s and has adjustable output from 4.8 to 9 volts. Solder the red wire brom bec to the red on the batt plug, and the black wire from bec to balck on batt plug. Plug into power input on receiver. This will supply power to the receiver, servo, and esc's. Program it with the needs of the servo your using, but not to exceed what receiver is rated at.

2nd. ESC power.
Solder red wire from battery plug to batt input + on esc #1. Solder black wire from battery plug to batt input - on esc #1. Next run jumpers. Solder a red jumper from batt input esc #1 to batt input esc #2, same for black jumper. Black wire from batt input - on esc #1 to batt input - on esc #2. If your not great with soldering or don't like soldering on the esc you can make or buy a "Y" harness and plug everything.

3rd. Remove power wires from the plugs to your receiver from the esc wires, and plug in.
Each esc will have wires that plug into the receiver. You need to remove the power wire from this plug (usually red) on each unit. Your esc's have internal BEC units made into them and without removing these you run a chance of harm to your receiver. Plug esc #1 into channel 2 and esc #2 into channel 3 or 4 depending on radio.
Note: I don't just cut these wires. Work them out of the plug, fold them back and tape with eletrical tape to other wires. This way if you want to use esc for something else, just plug back in and go.

4th attach motors to esc as normal.

5th Program radio on go.
As stated to run a dig your going to have to have at lest a 3 channel radio. In programing you will assign a rocker switch or what ever the radio has for the extra channels to take care of the switching between esc's. (ex: with rocker switch- push up esc #1 on run front end, switch middle esc #1 and #2 on 4wd, switch down esc #2 on rear power. Some radios make this programing easier than others. Myself I run a Futaba 4PL which has a dual esc mode built into it.

Hope this helps. Good luck!
 
Thanks harlyrider for the great info! But dig is not what I was looking 4. My problem is I have what I think is considered clod. Sometimes when I lose traction on 1 axle the other loses power. I was thinking 1 e s c for each axel would solve this giving me consistent 4wd. Sorry if I just made this confusing lol
 
John, see what your looking to do now. You just want to run two esc's off the same receiver channel (say ch2). This way when you supply the throttle signal both esc's get the same signal.

Would think that everything above would work except in step 3 you will run a servo "Y" plug. Plug both esc's into the Y and then into ch2 of your receiver. Your still going to have to do something about the internal bec units in the esc's or both will be feeding power to the receiver through the Y.

This would supply a trigger pull signal to both esc's.

I would still go with an external bec unit as in step 1. Although you could just remove one of the power wires from one of the esc's to the receiver before hooking into the servo Y harness.

Both esc's will receive a signal to supply power to the motors. Can't guarantee both motors will run the exact same rpm's due to resistance in motors, wiring, ect....
 
Thanks again harleyrider. I totally overlooked the wiring Of the receiver plugs and their bec! So as far as the motor leads go should I tie both leads from one e s c to one motor? because each e s c was built to run two motors
 
I have the same problem with my mad torque. I am completely new to rc and all the terms and electronics.... so I can run to esc's to get full power to both axles at all times with the stock controller? I'm not trying to steal your post, but I am also very interested in this set-up. Part numbers and pictures would be great! And if you get this going john. please post up how you did it.

Thanks,

Travis
 
if you have 2 esc that are both running off one channel like it sounds like you are planning, it will still have clod stall like you were already experiencing. but if you insist on doing it just use one set of wires from each esc. to get rid of or lessen clod stall use a tooth smaller pinion in the rear or step up to a 4ch tx that has dual esc mixing in it like a futaba 4pl, 4pk, 3pks, or hacked fs gt3b.
 
So I'm still waiting for the e s c to come in the mail. When it comes I will try it out and let you guys know if it helps any. Thanks for all the input!
 
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