|
|
|
 |
RCCars |  |
Crack Roll | |
Flying Giants | |
RC Power | |
The E Zone | |
Lift Zone | |
Our Sponsors |  |
|||||
|
|
||||||||||||||||||
May 07, 2008, 08:29 AM
|
#1 |
|
Registered User
Join Date: Feb 2002
Location: New York
Posts: 1,868
|
Retract Servo Powered By Separate Battery
Would like to power a sailplane retract servo with a separate battery. Does the negative terminal of the separate battery have to be wired to the negative of the RX battery so they share a common ground or is this not necessary? (I understand about wiring the signal lead.)
TIA, Steve |
|
|
|
May 08, 2008, 10:34 AM
|
#2 | |
|
scalebldr
Join Date: Nov 2005
Location: Long Beach, Ca
Posts: 160
|
Quote:
Rick |
|
|
|
|
|
May 18, 2008, 07:55 PM
|
#3 |
|
Electric Airplane Junkie
Join Date: Jun 2000
Location: San Mateo, Ca , USA
Posts: 4,403
|
Steve,
Do you want to have separate power or just so the retract see the max voltage? What is the main goal behind this exercise? I had a Futaba retract servo that has a wire to the rx and a female connector to accept a battery pack. I think the power is common. Brian, an EAJ |
|
|
|
|
May 19, 2008, 06:52 AM
|
#4 |
|
Registered User
Join Date: Feb 2002
Location: New York
Posts: 1,868
|
Brian, I want to insure that if the retract mechanism ever jams, I didn't want its servo to pull down the main battery pack as it tries to either retract or extend the main wheel. By using a separate battery pack to drive it, any problem is localized to the retract servo only. Sounds like Futaba has this all set up in advance.
I finally finished all the wiring for this new sailplane including the separate pack for the retract servo which shares a common ground with the main pack. Everything works well and it will maiden at JR. Will post some photos shortly. Steve |
|
|
|
|
May 19, 2008, 10:16 AM
|
#5 |
|
Electric Airplane Junkie
Join Date: Jun 2000
Location: San Mateo, Ca , USA
Posts: 4,403
|
Steve,
If you want to separate the system, you can always run a separate receiver, retract servo and battery just for the retractable LG. Brian, an EAJ |
|
|
|
|
May 19, 2008, 10:47 AM
|
#6 |
|
Registered User
Join Date: Feb 2002
Location: New York
Posts: 1,868
|
True enough, but still more complexity. Just the extra pack works great.
|
|
|
|
|
Dec 26, 2008, 03:32 PM
|
#7 |
|
on a vacation
Join Date: Dec 2008
Posts: 86
|
the interesting this is I just lost a plane to this.... retract jammed and my rambler flew into the ground at full speed.... toast now... I was able to prove it by the fact the servo had a large amount of stripped gears
|
|
|
|
|
|
| Thread Tools | |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Discussion Esc and separate battery for rcvr/servo | Jack Hyde | Electric Sailplanes | 13 | Feb 03, 2006 09:07 PM |
| Another power tool powered by Lithium ion battery | ptglass | Batteries and Chargers | 0 | Jun 17, 2005 03:58 PM |
| separate BEC for retract servo? | hul | DIY Electronics | 2 | Apr 09, 2005 03:29 AM |
| Separate battery for a retract servo? How? | tim hooper | Electric Plane Talk | 17 | May 05, 2003 07:15 PM |
| FUNNY PARK CG Battery Mod. Powered by Kokams. | LESLIEx317537 | Parkflyers | 6 | Mar 22, 2003 05:51 PM |
|
|
