Notices
RC Car Radio Equipment Discuss specific topics related to RC car radios. For general or non rc car specific radio topics please see our regular radio discussion forum.

Receivers max load??

Old 01-30-2008, 01:15 PM
  #1  
tom111
Senior Member
Thread Starter
 
tom111's Avatar
 
Join Date: Jan 2007
Location: Jerusalem, ISRAEL
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default Receivers max load??

Hi,

I would like to connect 2 servos to the throttle socket in the receiver with a Y-Harness, the 2 servos are Hitec 5995tg (333oz), each one of them draws a current of 4.2amps under full load, beside that I have another ¼ 292oz servo for the steering.
Will the receiver (Futaba R603FF) be able to handle this? Will it burn? Is it too much current for 1 socket?

Thank you,
Tom
Old 01-30-2008, 01:25 PM
  #2  
Dale Gribble
My Feedback: (4)
 
Dale Gribble's Avatar
 
Join Date: Sep 2003
Location: Temecula, CA
Posts: 5,692
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

I am sure the receiver output is current limited so the servo performance will suffer, not the receiver. Even if the servos want 4A and the receiver is capable of only outputting 3A, then the servos will get 3A. I wouldn't worry about the receiver.

Some Losi trucks run 2 steering servos with a y-harness into a JR RS-300/310 receiver, including a throttle servo and forward/reverse servo. You should be fine, the servos just won't operate to their full potential.
Old 01-30-2008, 01:31 PM
  #3  
tom111
Senior Member
Thread Starter
 
tom111's Avatar
 
Join Date: Jan 2007
Location: Jerusalem, ISRAEL
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

Thank you Dale!

How much would be the max current that a socket \ receiver can supply?
Is the limitation is on the total current that the receiver supply, for example 8 amps? Or is there also a limitation on each and every socket?

Thank you,
Tom
Old 01-30-2008, 01:35 PM
  #4  
Dale Gribble
My Feedback: (4)
 
Dale Gribble's Avatar
 
Join Date: Sep 2003
Location: Temecula, CA
Posts: 5,692
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

I checked a few specs on receivers; they honestly don't spec overall current availability or current/channel. I honestly don't know. Hopefully someone else can chime in.
Old 01-30-2008, 02:04 PM
  #5  
tom111
Senior Member
Thread Starter
 
tom111's Avatar
 
Join Date: Jan 2007
Location: Jerusalem, ISRAEL
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

Thank you for the time & help Dale, hopefully someone will be able to light up this subject.
Old 01-31-2008, 09:49 PM
  #6  
JRexA
Senior Member
 
JRexA's Avatar
 
Join Date: Oct 2004
Location: Nuuk, GREENLAND
Posts: 1,363
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

If the output is comming from a BEC, and the Servo wants more than the BEC can supply, then there is a great risk, that the BEC will be fried...
I have seen that several times with Brushless ESC's with built in BEC's

Some(plenty) modern receivers has no BEC, they just put the input directly out, and you only get problems, if you want more amps, than the circuit bord can handle.

To check if you have a BEC receiver, check the manual, or do a test, with a voltmeter and a 6V battery. If the receiver outputs around 5V, then it is a BEC Receiver.


I am currently running 1 x GWS S777 and 2 x ACE DS1015 on a Nomadio Transceiver, without burning anything... (Yet)
The GWS wants up to 18A, and the DS1015's needs around 5A max each.

I am considering running the GWS S777 on a direct power source...
Old 02-01-2008, 04:47 AM
  #7  
tom111
Senior Member
Thread Starter
 
tom111's Avatar
 
Join Date: Jan 2007
Location: Jerusalem, ISRAEL
Posts: 407
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Receivers max load??

I couldn't find in the manufacturer’s website if it has BEC or not, my remote model is Futaba 3PM 2.4 GHz with a R603FF receiver, do you know if it has a BEC?

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


Thread Tools
Search this Thread

Contact Us - Manage Preferences - 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.