Community
Search
Notices
Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

Y-harness for brushless ESC´s on a twin

Thread Tools
 
Search this Thread
 
Old 04-25-2005, 11:52 AM
  #1  
Leo
Senior Member
Thread Starter
 
Join Date: Feb 2002
Location: Gothenburg, SWEDEN
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default Y-harness for brushless ESC´s on a twin



The instructions for the JETI 30 Advance ESC says the BEC can handle
a maximum of 3 servos with 3 LiPo´s
I would like to use 2 of these ESC´s i parallell on a twin motor plane.
Can I use a simple Y-harness and get twice the BEC power?
Someone told me the BEC´s may interfere with each other[sm=confused.gif]

Thanks for the support in advance,
/Leo
Old 04-25-2005, 03:30 PM
  #2  
wreck_em_all
Senior Member
 
Join Date: Feb 2005
Location: Greenbelt, MD
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Y-harness for brushless ESC´s on a twin

Why would you want to do this? How many servos are you planning on using? BTW - whoever told you paralleling BECs can cause them to interfere with each other was wrong. Many popular ESCs use BEC devices in parallel.
Old 04-25-2005, 09:19 PM
  #3  
Roger Q.
Member
My Feedback: (1)
 
Join Date: Nov 2002
Location: Newberg Or, OR
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Y-harness for brushless ESC´s on a twin

Hi: I have heard you cannot use one speed control on the new motors, only brushed ones. I also need a harness set up, from speed control to two electric brushed motors. help appreciated. Roger Q.
Old 04-26-2005, 03:04 AM
  #4  
Leo
Senior Member
Thread Starter
 
Join Date: Feb 2002
Location: Gothenburg, SWEDEN
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Y-harness for brushless ESC´s on a twin

ORIGINAL: wreck_em_all

Why would you want to do this? How many servos are you planning on using?
Thanks for your help. Here´s a wiring diagram I made. I will use micro servos
for ailerons and flaps. Standard servos for elevator and rudder.
Attached Thumbnails Click image for larger version

Name:	Xv65363.jpg
Views:	21
Size:	34.3 KB
ID:	263295  
Old 04-26-2005, 07:19 AM
  #5  
Greg Covey
Senior Member
 
Greg Covey's Avatar
 
Join Date: May 2003
Location: Rochester, NY
Posts: 5,710
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Y-harness for brushless ESC´s on a twin

Although it looks like a close call, I would disable the BEC on one of the ESCs and use only one BEC. The ratings for BEC current are really meant for worst case when using multiple control surfaces simultaneously. In your case, the flaps will be seldom used and certainly not at the same time the other three surfaces are being used (like in a snap roll).

Alternatively, you can do the following:
[ul][*] remove shrink wrap on ESC with enabled BEC for maximum cooling benefit[*] use a seperate receiver battery[*] use a seperate UBEC or SBEC for all servos and receiver
[/ul]

Good luck!
Old 04-26-2005, 12:56 PM
  #6  
whanderson
Junior Member
 
Join Date: Sep 2003
Location: Seabrook, MD
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Y-harness for brushless ESC´s on a twin

Dittos to what Greg said.
Old 04-26-2005, 02:21 PM
  #7  
Leo
Senior Member
Thread Starter
 
Join Date: Feb 2002
Location: Gothenburg, SWEDEN
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Y-harness for brushless ESC´s on a twin

Thanks gentlemen! I think I will use a separate battery for the receiver and servos
as it seem like the plane will need some weight in the nose anyway

BTW, I ran across a web site with lots of info regarding the use of BEC´s
http://www.schulze-elektronik-gmbh.com/index_uk.htm
Click at "Important tips"

Leo

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.