RCCrawler Forums

Krakker · 01-07-2011, 04:04 PM

I'm hooking up and routing wires for my dual FXR setup and came across a question I can't seem to locate from searching.

I'm going to run the BEC strait to the servo (7980) and only the signal wire for the servo will get plugged into the ESC, SOOOO, the question is: do I leave "ONE" of the red wires from either ESC still in it's plug to power the rx??? or still pull them both?

Thanks for the help.

SMR 510RR · 01-07-2011, 04:27 PM

You have to power the receiver with something. I just pulled one of the reds out because I wasnt sure it it would like having both plugged in.

Krakker · 01-07-2011, 04:29 PM

Quote:

Originally Posted by SMR 510RR

You have to power the receiver with something. I just pulled one of the reds out because I wasnt sure it it would like having both plugged in.

THANKS,,, I was sure I had to have something powering the rx and after staring at wires and soldiering this after noon I was in a brain funk.

JeremyH · 01-07-2011, 04:37 PM

Pull both red wires.

bigstu · 01-07-2011, 04:40 PM

If you pull both red wires, you won't have any power to the receiver.
I have dual FXr's and my BEC routed directly to the servo. Pull one red wire, or I have been told you risk shorting out the BEC of one of the FXR's..

Krakker · 01-07-2011, 04:42 PM

Quote:

Originally Posted by JeremyH

Pull both red wires.

You sabatour!

lol

JeremyH · 01-07-2011, 04:47 PM

Oh sorry....I reread what you wrote and saw that you will be wiring the BEC directly to the servo. I just recently swapped my setup (dual MMPros) to a direct wired servo and reinstalled both red wires and everything runs perfectly fine.

JeremyH · 01-07-2011, 04:48 PM

Quote:

Originally Posted by Krakker

You sabatour!

lol

Haha....sorry....I quickly read your post and for some reason, thought you were wiring the BEC as CC recommends....not directly.

beidave · 01-07-2011, 05:00 PM

If your trying to keep the load from running across the rec, run a red from the bec to the servo and a red from the bec to the servo. And eliminate the red from both esc's. Hope this helps

beidave · 01-07-2011, 05:30 PM

Haa, need to proof posts when interrupted. Red to rec and red to servo from bec.

AreCee · 01-07-2011, 07:04 PM

It's real simple. Signal wire goes from the rx to servo. Pos and neg from bec goes to the servo. Leave both red wires from the ESCs to the rx, nothing gets fried since the rx receives power from both ESCs in parallel so voltage going into the rx is 5 to 6 volts from the ESCs bec.

01-07-2011, 04:04 PM	#1
Krakker I wanna be Dave Join Date: Nov 2008 Location: Where freedom is earned. Posts: 2,011	Dual FXR Power to rx question. I'm hooking up and routing wires for my dual FXR setup and came across a question I can't seem to locate from searching. I'm going to run the BEC strait to the servo (7980) and only the signal wire for the servo will get plugged into the ESC, SOOOO, the question is: do I leave "ONE" of the red wires from either ESC still in it's plug to power the rx??? or still pull them both? Thanks for the help.

01-07-2011, 04:27 PM	#2
SMR 510RR I wanna be Dave Join Date: Dec 2009 Location: San Francisco Posts: 2,236	You have to power the receiver with something. I just pulled one of the reds out because I wasnt sure it it would like having both plugged in.

01-07-2011, 04:37 PM	#4
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	Pull both red wires.

01-07-2011, 04:40 PM	#5
bigstu RCC Addict Join Date: Mar 2010 Location: Auburn, MI Posts: 1,177	If you pull both red wires, you won't have any power to the receiver. I have dual FXr's and my BEC routed directly to the servo. Pull one red wire, or I have been told you risk shorting out the BEC of one of the FXR's..

01-07-2011, 04:47 PM	#7
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	Oh sorry....I reread what you wrote and saw that you will be wiring the BEC directly to the servo. I just recently swapped my setup (dual MMPros) to a direct wired servo and reinstalled both red wires and everything runs perfectly fine.

01-07-2011, 05:00 PM	#9
beidave Pebble Pounder Join Date: Jun 2010 Location: ocala Posts: 121	If your trying to keep the load from running across the rec, run a red from the bec to the servo and a red from the bec to the servo. And eliminate the red from both esc's. Hope this helps

01-07-2011, 05:30 PM	#10
beidave Pebble Pounder Join Date: Jun 2010 Location: ocala Posts: 121	Haa, need to proof posts when interrupted. Red to rec and red to servo from bec.

01-07-2011, 07:04 PM	#11
AreCee RCC Addict Join Date: May 2008 Location: Chicago/Bloomington Posts: 1,505	It's real simple. Signal wire goes from the rx to servo. Pos and neg from bec goes to the servo. Leave both red wires from the ESCs to the rx, nothing gets fried since the rx receives power from both ESCs in parallel so voltage going into the rx is 5 to 6 volts from the ESCs bec.

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