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voltage regulator plus switch harness

attempting to install

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Dylan Reynolds LaserCraft Services06/06/2013 20:38:21
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No call me dumb, but I just can't fathom it out, but there again this is my first i/c installation.

I decided to use lipos as a power source for the rx in my Stampe, so went along to my LMS and bought a suitable switch harnes (Futaba HSW-J) HD type and a voltage regulator (Etronix 5A 6v).

Now I just thought it would be a simple case of plug A into B into C etc, but actually none of it makes sense, none of the plugs match and neither have come with instructions.

Now if all else fails I do have a 5 cell pack sitting waiting as back up, but I would rather do it this way (call me stuborn).

So if any of you knowledgable lads and lasses know these products and can help, please do, before I pull my last tuft of hair out!

Percy Verance06/06/2013 20:53:46
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From what I've seen Dylan, these voltage regulator gadgets don't ever come with useful plugs/sockets. I'm not sure I'd go with a regular heavy duty switch harness in your Stampe. Not after all the work you've put in. No, I'd try and get my hands on something meaty, something well able to take the current.

Hold on, I'll find a pic......

Here you go .....  http://www.multiplex-rc.co.uk/safety-switch-12hv-m6-240-p.asp

Not cheap Dylan, but how much is that model worth??

Works through a relay Dylan, so no current actually flows through the switch you see. That only energises everything. The relay handles the main current. As it's name implies, it can take 12amps max.

P.S. I have several of these in both 6amp and 12amp versions Dylan. If you want to take a look at one, let me know.......

Edited By Percy Verance on 06/06/2013 21:03:33

Percy Verance06/06/2013 21:13:03
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And here's another similar switch from another (German) maker. **LINK**

This one has the more familiar looking Futaba type connectors on it. Again not cheap Dylan, but the best never is.........

Dylan Reynolds LaserCraft Services06/06/2013 21:14:07
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I actually have the dualsky version of that in my Sebart 50E, works very well, even all the plugs were correct and it took 5 mins to install.

I may just go with the 5 cell for the time being as I really want to maiden it this weekend, its just been too long now and needs to be in the air, even if only once before Greenacres.

Thanks for the offer Brian, I will let you know.

Edited By Dylan Reynolds on 06/06/2013 21:15:31

Percy Verance06/06/2013 21:20:28
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No problem Dylan. I stopped using those supposedly "heavy duty" switches quite a while ago. If ever you get the urge, open one up sometime and look at the size of the contacts......

The big green plugs/sockets aren't an issue Dylan. There are adaptor cables available to wire them directly into Futaba style sockets.

Edited By Percy Verance on 06/06/2013 21:22:37

Dylan Reynolds LaserCraft Services06/06/2013 21:30:02
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But I still need help in sorting this spaghetti mess out lol, I will hard wire them if needed, just need to know what goes into what and in which direction and via which countywink 2

John Payne06/06/2013 21:45:12
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Hi Dylan. I have been using just that set up in a few models for a while now and although it is a fiddle to set up, it is worth it. You need to either do what I did and get matching connectors for the regulator, usually sold as a pair, and use them to connect in to the switch harness on the rx side. Alternatively you can just hard wire it in, but I wanted to be able to swap them about if necessary. Not sure if there is a right and wrong way, but I wire them in with the female connector to the switch and the male connector to the rx. On the battery side of the switch I used the same connectors for the switch harness and lipo, 2mm plugs, obviously make sure they connect properly(!) and there you go. If you need, I can get some photos in the morning and post showing the set up in one of my models. I get several sessions out of a 2s 1000 mA lipo before I charge it with around 5 or 6 flights per session. I have 3 lipos which are used in which ever models I take (I only ever take 3 models max because of space) and charge them when they get to around 50%. I also use one in a model with an orange stabiliser in and it copes very well on it. The only issue I have found is that some of the smaller servos do not like 6V an so a 4.8V regulator is used. Hope his helps. Cheers, John.

Dylan Reynolds LaserCraft Services06/06/2013 21:51:29
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cheers John, thanks for that, a pic or 2 would be very helpfull and much appreciated.

6v shouldn't be a problem as I am using Savox 252MG servos, but also running on board glow with proportional control via throttle mixing, but I dont think this should cause too many issues. I will be hard wiring in I think as once its all set up that it, not going to be messing around with it, get it flying and move onto the other 4 projects on the go lol.

Dylan Reynolds LaserCraft Services06/06/2013 21:58:13
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1704 forum posts
661 photos

Just a thought, as I am looking at the front of the regulator, does battery go into left or right hand side? and I presume its battery to regulator to switch to receiver? Also on the switch there are 2 wires one side and one wire on the other, which is input side and output side?

I do have an idea, but as its my first installation I just want to be sure

I have had a very handy man around the last 2 nights to help with the engine and tank installation and throttle set up, (thanks Raywink 2), but I can't keep imposing on the same chap, he has his own life and models to sort, so if you want to see this bird at Greenacres, heres your chance to help get it there devil

John Payne06/06/2013 23:13:48
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162 forum posts
63 photos

Hi Dylan. It is battery to switch to regulator to rx. That way you are cutting off power to the regulator (and rx) which will have quiescent drain ( always draining battery ) if always connected to battery. The pics tomorrow should make things clear. Cheers, John.

John Payne07/06/2013 09:57:14
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162 forum posts
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Hi Dylan, photos as promised. The first couple are as good as I could get to show the components mounted in my Wot 4. If you look closely you can see the connections and follow the wires from rx to regulator to switch to lipo.

Photo 1

Photo 2

The final photo is with the spaghetti tucked away and the components mounted on velcro in the model.

Photo 3

You can get rid of a lot of the excess wire if you hard wire the regulator to the switch harness. If you need anything clarifying just say. Cheers, John

Dylan Reynolds LaserCraft Services07/06/2013 16:13:25
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1704 forum posts
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Cheers John, just got in but will be studying them closely shortly.

Hopefully get this sorted out, cover bottom wing, flue on tail feathers, connect everything up and get it down the strip tomorrow for a run up and possibly a test flight.

Will let you know how i get on.

Again many thanks

Dylan Reynolds LaserCraft Services07/06/2013 20:21:59
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1704 forum posts
661 photos

ok just not getting anywhere with this, don't know if its because i have just had the worst day at work and my head is mush

I think I may have a break, fly tomorrow and come back to it fresh (or drag someone fom the club over to do it for me - Ray?! wink 2)

Edited By Dylan Reynolds on 07/06/2013 20:22:26

Ron Ireland18/03/2015 15:18:43
6 forum posts

Like Dylan

I am trying to connect one of these 6v regulators and no matter which way I try and I bought 2 of them I get 8.24 volt going in off a 2s lipo, and I get 7.77v coming out of the regulator. I have tried to follow the connections on John's picture but I can still not get it to work. Tried with switch and without. The regulator is a 6v 5A model. Why can they not include some instructions. Does anyone have some idea of what I could try?

Thanks

Bob Cotsford18/03/2015 19:33:30
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8062 forum posts
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Ron, can you post a link to the unit you are using or at least give the make and model? If it was just the one I would say that it sounds to be faulty if it is specified as a 6v output unit as there's not a lot to go wrong - LiPo connects to the input side, receiver to the output.

Just a couple of things - is it a linear or switching regulator and are you measuring the output with no load? Is it possible that with no load the output could be floating. Even a load drawing just a few milliamps might be enough to show the true regulated output voltage.

Ron Ireland18/03/2015 20:06:19
6 forum posts

Hello Bob

The only info I can give you is, it is a regulator distributed by JP Perkins bought at one of the on line model shops. All the info on it is: LIPO Regulator input voltage - 5509889 6.0v version 7 - 25 volts@5amps and Output voltage 6.0vand amperage at - 5amp.

These are sold at a lot of the shops and when you get them there are no instructions, so the best I can do is as follows, I have only done a test with no load:

Etronix Li-Po Regulator 5A 6V Hard Cased

Etronix Li-Po Regulator 5A 6V Hard Cased

This great little unit allows the use of any battery from 7 to 15 volts to run your Receiver or ignition.

  • Works with all battery chemistries ie LiPo, Li-Fe, Lion
  • Input Voltage - 7.0v to 15v
  • Output Regulated Voltage - 6.0v
  • Output Amps - 5A
  • Weight - 20g
  • Size - 20x14x49mm

John Payne19/03/2015 10:14:55
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162 forum posts
63 photos

Hi Ron, I don't know too much about how they operate, but if you see the regulator as a funnel, the larger connector is where you put in the power (female connector) and the smaller connector is where the regulated supply comes out (male connector). I'm not sure if you can damage them by connecting up the wrong way, but I connected all mine up that way and had no problems.

Ron Ireland19/03/2015 10:28:32
6 forum posts

Hello John, just had a few emails from the shop I got them from and I have set it up as you have said, looking at the face right is in and left is out. Not sure why the manufacturer or supplier could not add that info somewhere as stupidly I have gone with them the other way round, followed the writing. Anyway I have got them working and they can now go in the planes. By the way do you know what the input voltage can be? some of them say 7-25v and then later on it says 7-15volts.

Willyuk19/03/2015 11:08:03
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176 forum posts
22 photos

I Amy be shot down, but why bother with the regulator? I just use a life 6.6v battery, just need to check that the servos can take it, I tend to use Futaba which are ok with the voltage., hi tec seem ok too. Then I just plug it into a normal switch.

Bob Cotsford19/03/2015 11:22:22
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8062 forum posts
444 photos

I have some HiTec 645MGs that need a regulated supply even for LiFe, without it the neutral point drifts with battery voltage - even with the flat discharge curve of LiFes! All my other servos have been fine on 6.6v, even JRs.

the Etronix web site says that the unit is rated for 6-25v.

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