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Powering Signals When Using Peco Spring Loaded Turnouts

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Powering Signals When Using Peco Spring Loaded Turnouts
Posted by richhotrain on Tuesday, October 17, 2017 4:30 AM

This question has likely been asked before, but I cannot readily find any threads on this topic.

What I would like to do is to operate Peco turnouts with the factory installed springs in place. In other words, I would like to throw the points with my finger, not with a separate device like a Tortoise or servo or whatever.

At the same time, I would like to have operating signals, mostly Tomar Industries, to indicate the route direction. My goal is to simplify under layout wiring. Is there a way to power the signals to change from red to green as I "hand throw" the point rails?

Rich 

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Posted by RR_Mel on Tuesday, October 17, 2017 9:28 AM

I’m a gadget guy and I see way to accomplish what you need.  By using a .020” bronze rod in the moving point hole that the turnout motor would drive as a center pole for a switch and two like rods on either side of the center rod as the switch contacts.  The spacing would be critical but should work for powering LEDs as a SPDT switch.
 
I can visualize making a Styrene mount to hold the bronze rods for simple installation under the turnouts.  If the turnouts are not installed I would attach the “switch” to the under side of the turnout and cut a hole large enough under the turnout to clear the home brew switch.
 
It might take some tinkering around but that should work.  Using a #76 drill bit (.020”) isn’t easy, I order them by the ten pack.  .020” rod is my go to for small rods, Bronze, Brass & Steel.  I’m into animation and I use .015” and .020” rods for all kinds of stuff.
 
I’m currently assembling this little guy for my machine shop, he really swings his hammer.
 
 
  
 
Good Luck
 
Mel
 
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Posted by Old Fat Robert on Tuesday, October 17, 2017 12:26 PM

Rich: Are you using DCC control? If the answer is yes AND you are using powered frogs or power routing turnouts that are not "DCC friendly" then the solution to your answer is quite simple. Route signals typically have (after construction) three wires. One wire energizes the grenn signal, one energizes the red signal and one completes the circuit(s) by being the common. The common gets soldered (or electrically connected) to the frog, then the remaining two wires are connected to the stock rails on the point side of the turnout. With DCC the power to the signal will always be on. Be sure to use a jumper wire to be sure you have the signals/track in the right orientation before you solder them to the rails. I use use Shinohara (not Walthers/Shinohara) code 70 turnouts and this works fine for me.

Old Fat Robert

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Posted by rrinker on Tuesday, October 17, 2017 1:00 PM

 That should work. Don't forget the resistors. That will work with any power routing turnout, but will not work with Insulfrog. Electrofrog is better anyway.

                              --Randy

 


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Posted by richhotrain on Tuesday, October 17, 2017 2:00 PM

OK, now that seems like a real possibility.

Yes, I am running DCC.  My current layout uses Atlas Custom Line turnouts which are not power routing. However, my plan is to build a new layout with Peco turnouts which are power routing.  I do have a few Peco Insulfrogs on my layout, and they have plastic frogs, but I could just as easily purchase Electrofrogs.

Thanks for that idea.

Rich

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Posted by MisterBeasley on Tuesday, October 17, 2017 2:06 PM

I have a few of the Peco PL-13 SPDT toggles designed for use with their PL-10 switch machines.  It's possible that they could be mounted directly beneath the turnout without the switch motor.  Has anyone tried that?

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Posted by rrinker on Tuesday, October 17, 2017 2:12 PM

 The point motros have fold-over tabs to secure them to the bottom of the tunout. The PL-13 looks like it just clips to the motor, I'm not sure there is anything to hold it in place. Plus it is activated by the extension tail of the wire from the motor that pokes up through the throwbar. You'd have to find some way to have a wire go down through the switch rod intot he PL-13 to move it, without falling out the bottom. The point motors themselves have no spring action, they rely on the springs already in the throwbar, so I supped you could install the motor AND PL--13, and just never hook up the motor, but that could get expensive.

                         --Randy

 


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Posted by Anonymous on Tuesday, October 17, 2017 3:58 PM
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Posted by richhotrain on Wednesday, October 18, 2017 6:48 AM

Old Fat Robert

Rich: Are you using DCC control? If the answer is yes AND you are using powered frogs or power routing turnouts that are not "DCC friendly" then the solution to your answer is quite simple. Route signals typically have (after construction) three wires. One wire energizes the grenn signal, one energizes the red signal and one completes the circuit(s) by being the common. The common gets soldered (or electrically connected) to the frog, then the remaining two wires are connected to the stock rails on the point side of the turnout. 

Got to thinking more about this solution. Since the power source for the signal would be DCC, this would eliminated the need for my current DC power source, a series of MRC Railpower 1370 power packs that drive both the signals and the Tortoises.  My concern is that I have about 60 different signal devices. What (adverse) effect will this have on DCC power consumption?

Rich

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Posted by rrinker on Wednesday, October 18, 2017 7:29 AM

 Depending on the resistor value used with the signal LEDs, you have about 10 ma per LED, with 60 LEDs that's 600 ma of power used from the DCC system. About 1 sound loco's worth or thereabouts. To not use DCC power would require a bit of a circuit to detect the turnout position, or the use of a switch of some sort that would be contacted by the throwbar and then used like the Tortoise contacts to control the signal LEDs with power from the DC pack.

                                         --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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Posted by richhotrain on Wednesday, October 18, 2017 1:01 PM

Thanks, Randy.

I do like the idea of using DCC power because of its simplicity. I would welcome the opportunity to ditch the DC power packs.  It doesn't sound like the proposed arrangement would consume all that much DCC power.

Rich

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Posted by richhotrain on Tuesday, October 22, 2019 5:57 AM

I am never one to revive old threads, but two years later I am reviving this old thread of mine.

On my new layout, I have replaced my Tortoise powered Atlas Custom Line turnouts with spring loaded Peco Insulfrogs. No more Tortoises. The Peco Insulfrogs have plastic frogs so no opportunity to power them. The Insulfrog turnouts are power routing, and all three ends of every turnout are powered by feeders.

This raises the question of how to add signals to the Peco Insulfrogs. This is a DCC-powered layout, but I also have DC power sources available.

I am open to any and all suggestions. 

Rich

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Posted by ATLANTIC CENTRAL on Tuesday, October 22, 2019 6:14 AM

richhotrain

I am never one to revive old threads, but two years later I am reviving this old thread of mine.

On my new layout, I have replaced my Tortoise powered Atlas Custom Line turnouts with spring loaded Peco Insulfrogs. No more Tortoises. The Peco Insulfrogs have plastic frogs so no opportunity to power them.

This raises the question of how to add signals to the Peco Insulfrogs. I am open to any and all suggestions.

Rich

 

And this has always been my concern with this approach using the PECO turnout.

I only use switch machines on turnouts that would have been remotely controlled on the prototype, primarily those controlled by CTC.

All other are manually thrown.

I use sub minature slide switches as the "ground throw" and supply the necessary contacts for powering frogs and suppling signal/power routing logic.

I mount the slide switch right in the "scenery" where a switch stand would be, and after drilling a small hole in the handle, connect it to the throw bar with a "V" shaped music wire spring, and use small screwdrivers for throwing turnouts and manual uncoupling.

But I use Atlas turnouts.......

Sheldon 

    

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Posted by richhotrain on Tuesday, October 22, 2019 6:49 AM

ATLANTIC CENTRAL
 
richhotrain

I am never one to revive old threads, but two years later I am reviving this old thread of mine.

On my new layout, I have replaced my Tortoise powered Atlas Custom Line turnouts with spring loaded Peco Insulfrogs. No more Tortoises. The Peco Insulfrogs have plastic frogs so no opportunity to power them.

This raises the question of how to add signals to the Peco Insulfrogs. I am open to any and all suggestions.

Rich 

And this has always been my concern with this approach using the PECO turnout.

Well, of course, I could have purchased and used Peco Electrofrogs in which case the metal frog could be powered with the common wire, but I chose Insulfrog turnouts instead.

Rich

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Posted by gmpullman on Tuesday, October 22, 2019 7:15 AM

About the only idea I could offer is to try concealing a miniature snap-action switch (AKA Microswitch) that could be activated by the throw bar of the turnout points.

https://tinyurl.com/yyc362zr

There are scores of designs of sub-miniature switches. Some have a longer actuating arm that may work better, rather than the type with a little button (as shown). You might be able to work a length of spring wire that can actuate the switch at a slight distance from the turnout. Perhaps hide the switch inside a trackside relay case or shed of some sort. **

 point_switch by Edmund, on Flickr

I've torn apart lots of VCRs and CD players in my day and there always seemed to be several tiny micro switches in the works. I imagine you could find some pretty reasonable on eBay?

https://tinyurl.com/y3om3eel

Be sure the switch is a "double-throw" so you have a contact for both normal and reverse position of the points. Some switches are only single-throw.

 ** If you have the room you could actually mount the switch under the roadbed and have the long actuating arm up through the roadbed where the end of the turnout point throwbar would push the arm of the switch to actuate it. Make a bracket for the microswitch so you can adjust it so it will "click" right when the throwbar pushes on it.

Good Luck, Ed

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Posted by RR_Mel on Tuesday, October 22, 2019 7:35 AM

How about a micro switch mounted next to the turnout moving tie.  The moving tie could press in the button of a SPDT micro switch.
 
 
The Peco turnout spring should have enough power to activate the micro switch.
 
 
Mel
 
 
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Posted by gregc on Tuesday, October 22, 2019 7:35 AM

latching relays could be toggled using the momentary pulse used, i assume, to toggle the dual coil switch machine on the tunout.

greg - Philadelphia & Reading / Reading

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Posted by ATLANTIC CENTRAL on Tuesday, October 22, 2019 7:47 AM

gregc

latching relays could be toggled using the momentary pulse used, i assume, to toggle the dual coil switch machine on the tunout.

 

That's the whole point, he is not using switch machines. He is using the built in spring in the PECO turnout and moving the points manually.

Latching relays are expensive and require more wires. The same thing is accomplished with a conventional relay and a holding circuit with push buttons. 

Who cares how much power we use with the relay powered up 50% of the time, it is a model railroad, only powered up when in use?

The relays don't care, they are continuous duty. I have seen ice cube relays last multiple decades in every day industrial use, I don't think I will wear out any on my layout.....

Sheldon

    

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Posted by richhotrain on Tuesday, October 22, 2019 8:34 AM

ATLANTIC CENTRAL
 
gregc

latching relays could be toggled using the momentary pulse used, i assume, to toggle the dual coil switch machine on the tunout. 

That's the whole point, he is not using switch machines. He is using the built in spring in the PECO turnout and moving the points manually.

That's correct. I need a switching technique, and I am hoping to do it electronically, not mechanically.

Rich

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Posted by RR_Mel on Tuesday, October 22, 2019 9:49 AM

A small magnet on the moving tie and a magnetic reed switch.
 
A small magnet on the moving tie and a Hall Effect sensor.
 
A hole in the moving tie with a IR photo cell under the hole and a IR emitter on the ceiling.
 
I’m running out of ideas.
 
 
Mel
 
 
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Posted by ROBERT PETRICK on Tuesday, October 22, 2019 10:25 AM

Hey Rich -

I'm facing a similar issue. Three-quarters of my N scale layout has Tortoise powered turnouts and full electronic control of switches and signals. Peco turnouts with springs removed. No matter how I set the fulcrum position or how thick and strong the piano wire, the Tortoises could not overcome the Peco springs.

On the Wind River peninsula, there are two industries sharing a double ended yard with four switches, plus another switch closing the balloon reversing loop. I'm currently throwing the switches manually, but I'd like to signalize and automate this area. The ultimate plan is to pull up the turnouts and remove the springs and install Tortoises. The intermediate plan is to continue manually throwing the switches and pushing a toggle to manually set the aspect of the signal heads. A little extra work requiring a little extra mental activity, but not really a big deal in the scheme of things. Capital cost: minimal.

Good luck.

Robert 

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Posted by gregc on Tuesday, October 22, 2019 1:32 PM

richhotrain
The Insulfrog turnouts are power routing, and all three ends of every turnout are powered by feeders.

what does power routing mean in this case (with insulfrogs)?   that only one point rail is powered (by making contact with the stock rail)?

greg - Philadelphia & Reading / Reading

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Posted by richhotrain on Tuesday, October 22, 2019 1:58 PM

gregc
 
richhotrain
The Insulfrog turnouts are power routing, and all three ends of every turnout are powered by feeders. 

what does power routing mean in this case (with insulfrogs)?   that only one point rail is powered (by making contact with the stock rail)? 

I mentioned that my Peco Insulfrog turnouts are powered by feeders on alll three ends of each turnout. That being the case, all of the rails are powered on each turnout. Only the plastic frog is dead.

Rich

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Posted by gregc on Tuesday, October 22, 2019 2:01 PM

what about the point rails?

greg - Philadelphia & Reading / Reading

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Posted by cv_acr on Tuesday, October 22, 2019 2:33 PM

richhotrain

I mentioned that my Peco Insulfrog turnouts are powered by feeders on alll three ends of each turnout. That being the case, all of the rails are powered on each turnout. Only the plastic frog is dead.

 

Unfortunately you're trying to do two things (Hand-thrown PECO InsulFrog turnouts and somehow detecting turnout position for signals) that are entirely incompatible with each other.

Sorry, but I don't see any other way to say this. You can't do what you want here without controlling the switches with a different throw system.

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Posted by gregc on Tuesday, October 22, 2019 2:55 PM

the images suggests that only one point rail is powered, depending on position.   If true, wiring it in series with a (~10k) resistor  and detector would allow you to determine tunout position from which you could control a signal.

greg - Philadelphia & Reading / Reading

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Posted by richhotrain on Tuesday, October 22, 2019 4:27 PM

gregc

what about the point rails? 

It depends.

If the Insulfrog is powered only on the stock rails at the tail end of the turnout, only the point rail touching its stock rail is powered, thus power routing. I guess that this would be useful for dead rail sidings.

However, when the Insulfrog is powered on all three ends of the turnout, as in my case, both point rails are always energized, effectively defeating the benefit of power routing.

Rich

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Posted by richhotrain on Tuesday, October 22, 2019 4:30 PM

cv_acr
 
richhotrain

I mentioned that my Peco Insulfrog turnouts are powered by feeders on alll three ends of each turnout. That being the case, all of the rails are powered on each turnout. Only the plastic frog is dead. 

Unfortunately you're trying to do two things (Hand-thrown PECO InsulFrog turnouts and somehow detecting turnout position for signals) that are entirely incompatible with each other.

Sorry, but I don't see any other way to say this. You can't do what you want here without controlling the switches with a different throw system. 

Yeah, I am coming to realize that. The micro switch suggestion made earlier in this revived thread is something that I need to take a look at as I move forward.

Rich

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Posted by ATLANTIC CENTRAL on Tuesday, October 22, 2019 4:42 PM

richhotrain

 

 
cv_acr
 
richhotrain

I mentioned that my Peco Insulfrog turnouts are powered by feeders on alll three ends of each turnout. That being the case, all of the rails are powered on each turnout. Only the plastic frog is dead. 

Unfortunately you're trying to do two things (Hand-thrown PECO InsulFrog turnouts and somehow detecting turnout position for signals) that are entirely incompatible with each other.

Sorry, but I don't see any other way to say this. You can't do what you want here without controlling the switches with a different throw system. 

 

 

Yeah, I am coming to realize that. The micro switch suggestion made earlier in this revived thread is something that I need to take a look at as I move forward.

 

Rich

 

Rich, there is no free lunch here, a turnout is a mechanical device first, we simply convert it into an electrical device for model train use.

Have you considered any sort of complete signal system? Or to you just want to show turnout position?

Simplified interlocking signals are easy to wire up and will indicate both turnout position and block occupancy.

But in any case I think you need some sort of little switch on each turnout......

Sheldon

    

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Posted by richhotrain on Tuesday, October 22, 2019 5:05 PM

ATLANTIC CENTRAL
 

Have you considered any sort of complete signal system? Or to you just want to show turnout position?

Just to show turnout position.

Rich

Alton Junction

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