wiring 2x controllers in parallel to....??

[joostin421]

i would like to run my 2x lehner 4200's with 2x schulze 18.61k controllers on 12cells.

for example, i know it is possible to run 2x 6cell packs in parallel to run a total of 12cells. is it possible to run both of the controllers sharing 12cells (i.e. running the controllers in parallel)?

thanx,

justin

[Mr. Constructor]

off course, the esc´s will be totally connected to each motor, then use a Y harness for the receiver signal, keep an eye on the bec if needed, only ONE esc has to have the bec on, the other should be turned OUT.

then solder the 2 red wires (one from each esc) to the battery connector you use for the plus connection, do the same with the 2 black wires from each esc.

now the batterys will be connected plus to minus in the middle (to get them in series giving 12 cells ) and then connect the red and black wires from the battery to the Y shaped connector from both esc cables this will connect the batterys in series while connecting the esc´s and motors in parallel, keep an eye on those 2 Motor sets, as the rpm´s might differ a bit, check the gear mesh . the motors and the esc´s have to be of the same type, but the wires from the esc to the motor should be almost the same too, as the other lenght will reduce the motors rpm a bit it´s very less, but might be recognised when these 2 motors are connected to the same gear tranny !!
(that´s why even the gear mesh should be the same !!)

Have fun with it !!

[joostin421]

they are going in my custom wild dagger.

justin

[ElectricThunder]

This just got me thinking, what would happen if you were to run two ESCs in series? Would you get more voltage or current capacity for just one motor? :confused:

[Mr. Constructor]

THIS is absolutely impossible, as the induction of the motor is used to "see" the rotor stand for the esc, this having 2 esc´s on 1 motor causing problems as many favtors such as wire lenght and others will influence the "reading" thus leading to different Datas on the 2 esc´s !!
DO NOT DO IT !!

[ducati777]

I second that. You can run 2 esc's off 1 battery, but do not run 2 brushless esc's on one motor.

However it could possibly be done on brushed motors, since they don't read the rotor position.

[ElectricThunder]

I see.... What if you were to splice sensor wires from a sensored motor so that it creates a Y type harness. That would give the ESCs a definite place as to where the rotor would be, correct? Thus, they would be in synchronization with one another? (Don't worry, I'm not going to do this. I'm too busy trying to keep things from breaking on my rusty, mainly diff gears... :rolleyes: ):D

[Mr. Constructor]

As the finest electric inductance (caused by different lenght or even thickness of the wires) will interfer the system. It´ll be extremely hard to get these two esc´s running, it´ll be too complicated, use a bigger esc instead will solve the problem too and might be even cheaper !!

[SpEEdyBL]

And one motor.

[Rtsbasic]

I believe if you only use one motor in a Wild Dagger you only get 2WD, thus the need for 2 motors/controllers.

[Mr. Constructor]

If ya wanna use 2 Motors on one esc there is a trick to do so, please search a bit on this forum, as i posted it somewhere how to make it running !! (and i do not know where too, damn !!) ;-)
Be warned it´ll be a little hard to work as you really have to work very precisely !!

[SpEEdyBL]

Don't the motors have to be spinning at the same rpm so each motor is always in the same phase? It looks to me that the front and rear wheels of the Wild Dagger aren't connected.

[ElectricThunder]

Don't the motors have to be spinning at the same rpm so each motor is always in the same phase? It looks to me that the front and rear wheels of the Wild Dagger aren't connected.
There's two separate gear boxes on wild daggers. So it won't make as much of a difference. :D

[Mr. Constructor]

But then the rpm will differ a lot more than if the motors are connected to one gearbox !!
It´s highly recommended to use 2 esc´s then, but if it is for a small wild dagger, use 2x 60A versions will be way enough, all my 10th cars are running on up to 60A esc´s, some even less (the 2wd pro 10 could even use 40A versions)

[ducati777]

it won't work with 2 brushless motors, especially since the motors will always be out of phase. Again, if you go brushed, you have no problems. Gah, I hate admitting brushed motors have the advantage here.