| |
| |||||||
 |
| | LinkBack | Thread Tools | Display Modes |
10-02-2011, 01:43 PM
| #1 |
| I wanna be Dave  Join Date: Feb 2006 Location: Campbell, CA 4 hrs 2Rubicon !
Posts: 2,044
|  HItec servo flips out with new CC bec at 6.5v ?
I could not find a Hi Tec section. I have a New Hitec 7954 high voltage servo with new CC bec programed to 6.5 volts When I plug the servo power wires direct to BEC and of-course the white signal wire to receiver the servo goes wild. But IF I just plug servo normal to receiver it acts fine. What's wrong? ESC Mamba micro pro RX Spektrum 6100 3S lipo All new 1.9 scaler thanks for your help |
|  |
| Sponsored Links | |
| | |
|
10-02-2011, 01:45 PM
| #2 |
| MODERHATER™   Join Date: Nov 2005 Location: Colorado
Posts: 10,939
|
Try just plugging the power wire into the BEC.
|
|
| |
|
10-02-2011, 01:52 PM
| #3 |
| RCC Addict Join Date: Apr 2009 Location: Token's life matters
Posts: 1,836
|
Pull the red wire out of the ESC plug and run everything through your RX. It should not be an issue. Leave the ground wire to the esc. I have had a funky ground loop when you power the RX and the BEC separately without a common ground.
|
|
| |
|
10-02-2011, 01:55 PM
| #4 |
| cherry bomb   Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
|
ground the servo, plug the signal AND black wire of the servo into the RX edit: but like others have said, at 6.5v you can just run it through the RX without issue. Last edited by fred0000; 10-02-2011 at 02:28 PM. |
|
| |
|
10-02-2011, 02:32 PM
| #5 | |
| I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
| Quote:
 | |
|
| |
|
10-02-2011, 02:46 PM
| #6 |
| cherry bomb Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
|
also spektrum RX's are good up for 9.6 volts (6100 aswell, just looked), i've always installed BEC's the way the instructions say to do so (into the RX) and ran at 7.4v without any issue, never really felt the need to direct wire to the servo, just make sure to remove the red wire from the ESC plug if you choose to go this rout.
|
|
| |
|
10-02-2011, 03:26 PM
| #7 | ||||
| I wanna be Dave Join Date: Feb 2006 Location: Campbell, CA 4 hrs 2Rubicon !
Posts: 2,044
| Quote:
Quote:
unless some how I misunderstood what you meant..? maybe pull red esc wire and run the rx and servo from bec? Quote:
Quote:
Maybe I should be fine just using the servo at 6 volts- what ever power the ESC is providing? I just thought I would add the BEC for some protection for my $$ Mmicro pro. I'll try to find what the load and details are of the Mmicro is. Thanks all | ||||
|
| |
|
10-02-2011, 03:27 PM
| #8 |
| MODERHATER™ Join Date: Nov 2005 Location: Colorado
Posts: 10,939
|
I let my ESC power the receiver, BEC's power my servos.
|
|
| |
|
10-02-2011, 03:36 PM
| #9 |
| cherry bomb Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
|
maybe you should have a hobbyshop install your BEC, there are several threads covering this with very good diagrams. the ESC and BEC will get power from the battery. right now you have it so the BEC powers the servo directly. the instructions that came with your BEC show that it plugs into the RX (if you don't have the instructions try searching, or google them (castles website is a good place to look for castle products)) powering the RX and whatever is plugged into the RX, your ESC has a BEC built into it also, having this plugged into the RX aswell as the BEC plugged into the RX will cause issues, you must disconect one, which is why you remove the red wire from the signal harness that plugs into the RX. you are currently wired like this:  you're explaining a grounding issue and people are telling you how to remidy this (connect the black wire from the servo to the RX aswell as the signal) or install as per castles instructions... like this:  Last edited by fred0000; 10-02-2011 at 03:39 PM. |
|
| |
|
10-02-2011, 04:23 PM
| #10 |
| I wanna be Dave Join Date: Feb 2006 Location: Campbell, CA 4 hrs 2Rubicon !
Posts: 2,044
|
Thank you , I will try adding the servo black wire to Rx. But I have it Wired just like the top CC Diagram. I do not have my BEC plugged into RX MY BEC is directly from Battery and only powers the servo. so I am puzzled Last edited by toy4crawlin; 10-02-2011 at 04:27 PM. |
|
| |
|
10-02-2011, 04:40 PM
| #11 | |
| I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
| Quote:
I still always run direct from the BEC to the servo, eliminates lots of other issues.  | |
|
| |
|
10-02-2011, 04:59 PM
| #12 |
| cherry bomb Join Date: Jul 2006 Location: Nanaimo, BC, Canada
Posts: 1,598
|
I've seen a few spektrum ground issues with them directly wired. If it is like the top diagram quickly try adding a ground. I'm sure it'll help. Good luck.
|
|
| |
|
10-03-2011, 08:19 AM
| #13 |
| Rock Stacker Join Date: Jul 2011 Location: Ottawa, Canada
Posts: 90
|
I had the same issue with a HiTec 7954 and a Spektrum Rx Charlie-III helped me out by suggesting to plug the ground from the BEC & the ground from the servo to the Rx and only have the power wire going to the servo from the BEC (I had the ground going right from the servo to the BEC prior) - since doing that everything works perfectly, I was always told that the Spektrum Rx's were picky and now I see why. |
|
| |
|
10-03-2011, 08:34 AM
| #14 | |
| I wanna be Dave Join Date: Nov 2010 Location: 07456 N. NJ USofA
Posts: 8,314
| Quote:
Yes, Spektrum's seem to be a bit pickier than other radios, that is not bad, I'm just commenting. Our Futaba's (3PM-x & 4PL) seem to be a bit easier to deal with.  | |
|
| |
|
10-05-2011, 05:03 PM
| #15 |
| I wanna be Dave Join Date: Feb 2006 Location: Campbell, CA 4 hrs 2Rubicon !
Posts: 2,044
|
ok, well I have yet to try it. But it must be only certain Spktrm Rx because I had no problems with my other crawler using 3S, BEC, 7955 servos and ar6000 RX. thanks Fred, dig your avatar. there should be a thread just on hottest avatars all in one place  |
|
| |
|
| |
Linear Mode
