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Re: Wiring Up a Manual Turntable?

wirefordcc
 

Hi Brian,

See my website for turntable wiring at:

http://www.wiringfordcc.com/track_2.htm#a44

There are couple of ways to get power to a turntable bridge.  If you don't split the rim rail, you can apply power with one wire to the rim rail and another to the center post.

You can also apply power to the arch over the bridge.  But that is a little delicate and so a bit more challenging to do.

I had two Diamond Scale turntables.  One, I used the rim rail and the center post.  The other, I used the rim rail and the overhead arch.  On both of them I used automatic reverse section controllers (ARSC) to provide the track power to the bridge with the proper polarity.

If you don't split the rim rail, you will need a way to reverse the polarity to the bridge if you will fully rotate it.  An ARSC, as made by DCC Specialties, NCE, or Digitrax, will do the trick.  If you want to do it on the cheap, you can use a Double Pole Double Throw toggle switch.

You can also split the rim rail.  If you do this, you won't need the ARSC, but you will have a dead zone where the split occurs.  This seems like a good idea, but the rim rail is somewhat springy and so it is challenging to get it to go precisely where you want it.  Since you will be rotating by hand, you can tolerate a little difficulty in smooth rotation at the split.

Allan Gartner
Wiring for DCC


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

Don Vollrath
 

Bruce, you need to add rail isolators at the exit end of the frog rails and to detect occupancy of siding tracks separately from that of turnout. Also if you do not also isolate the stock rails as they leave the turnout be sure that the detectors of the isolated stub or siding are sensing current on the frog rail extensions.


DonV


Wiring Up a Manual Turntable?

Brian Eiland
 

What is the most simply manner to wire up Diamond Scale turntable for DCC train operations. The turntable itself will NOT be indexing, nor powered in its turning,...just simple manual rotation?

 

I suppose one power lead still needs to come in thru the tower on the bridge, while the other comes thru the circular track in the pit? And I assume this circular track does NOT have to be segmented as there are dual contact wheels at both ends of the bridge?

 

There will be 3 powered tracks coming into the turntable, and all the remaining tracks (approx 8) will be storage tracks,.... that I would wish to be dead until the bridge is selecting them.

 

What I thought I would do is just remember what end of the turntable bridge is pointed at ANY of the tracks,...for instance the end with the bridge house on it. Wire all the connecting tracks to be compatible with that end . Then flip a toggle switch the opposite way if that end is not aligned with the access track you are connecting to,...(double pole, double throw toggle switch should handle the two wires,...one to pit rail, one to bridge tower,...just reverse the polarity of the two bridge tracks.

The locomotive sitting on the bridge track won't care about the polarity change (in DCC mode), just like a reverser does automatically?

Is a AR auto reverser really necessary to reverse the polarity of the bridge track,...without the loco going thru a restart??

Brian


Re: Atlas Switches

Brian Eiland
 

Electrical Control Panels
Just found some better images of those control panes I had for the turnout controls. Hopefully here you can see the toggle switch handles that point to the direction the turnout will be thrown,..then the 'zone buttons that need to be pushed to activate the capacitive discharge units. Only a couple of those CD units were needed








Re: Atlas Switches

Brian Eiland
 

I used CD units to operated groups of my Atlas turnouts as well As I posted here,

The traditional Atlas turnout controls are NO longer utilized. Several capacitor-discharge units now power the turnouts when a zone button is pushed. There are toggle switches placed at each turnout location on the track plan diagrams, and their ‘handles’ are oriented so as to indicate the direction in which the track turnout is thrown. So choose the train’s route, throw all the applicable toggles to the desired direction, and then press the ‘zone button’ to activate the turnout operation.




Brian


Re: Atlas Switches

Paul Welte
 

Jimmy,

I've been using a capacitive discharge unit for 10 years and haven't had anyone burn up one of my switch machines since I started using it. It's just a fancy name for a circuit/board that sits between the switches and the solenoids and fires a quick burst of voltage when the switch is pressed. It then removes voltage and won't "fire" again until the switch is released and pressed again. You can build your own for less than $10 or buy one for under $40. One CDU will operate many solenoids so you don't have to buy/build one for each turnout.

Hope this helps!

Paul

On Tue, Feb 16, 2021 at 10:04 AM James Cunningham via groups.io <jccowboys825=aol.com@groups.io> wrote:
Hi Guys 

I’m currently using on my DCC layout Atlas turnout motors with a Atlas Snap relay and of 
course Atlas switches. is there another switch I can use the atlas slide switch has tendency
of getting stuck and burning up the motor and snap relay.  


                 Thank You 
                 Jimmy       
        PS Love Your Group Great Information


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

Bruce Kingsley
 

Placed photo in Brucek5

The post Tim Rumph gave me a thought. I'm using detection for software automation and only want to know if a locomotive is in a section of track. I could isolate the turnouts and have them powered by all together by a non-detected source. Then on all tracks that lead to and exit the turnouts cut all rails and feed them a detection source. 


Photo Notifications #photo-notice

w4dccqa@groups.io Notification <noreply@...>
 

Bruce Kingsley <brucek5@...> added the album Brucek: Bruce Kingsley Photos


The following photos have been uploaded to the Brucek album of the w4dccqa@groups.io group.

By: Bruce Kingsley <brucek5@...>


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

wirefordcc
 

Photos and files have to be uploaded separately from the post.  Look down the menu on the left side for uploading a photo or file.  Just let us know where you put it and what you called it.  


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

Bruce Kingsley
 

I didn’t see an option to include pictures in posts. 


Regards,
Bruce Kingsley
Yakima WA

Pro

On Feb 19, 2021, at 7:08 AM, wirefordcc <bigboy@...> wrote:

Hi Bruce,

Can you upload a sketch of a trouble spot and how you have it wired?  It sounds like you have a few places that need insulated joiners/gaps.

Allan
Wiring for DCC


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

Tim
 

If you are doing CTC controlled sidings, the turnout (and short sections of track around it) is called an "OS Section" and should be its own, very small signal block, no connected to the main track or the siding on either side of it.

Tim Rumph
Lancaster, SC


Re: Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

wirefordcc
 

Hi Bruce,

Can you upload a sketch of a trouble spot and how you have it wired?  It sounds like you have a few places that need insulated joiners/gaps.

Allan
Wiring for DCC


Wiring Peco Electrofrog - Tortoises - Occupancy Detectors

Bruce Kingsley
 

I've wired my Peco Electrofrog turn-outs with Tortoises per the "Peco Turnout" page and they work great. The part I'm struggling with is rule of thumb for the connections of the multiple track feeder sources when using Occupancy Detectors (BDL168). On areas where the track is a dead end, the detection is correct. But when used in a siding for example, I get multiple dictions due to the turnout wiring connecting adjoining occupancy blocks on either end.


Re: Where to isolate on large loops and wye

Tim
 

A couple of things to watch out for
 
1- Don't use one AR for more than one reversing section
2- Don't arrange the track so that you go from one AR directly into another. That will completely confuse and hose things.

Tim Rumph
Lancaster, SC


Re: Where to isolate on large loops and wye

Don Vollrath
 

Yes you can attach the output wires of an AR until to more than one place within the AR section of track. May help bypass misc poor rail connections, etc. Just make sure you have a consistent rail polarity.

DonV


Re: Atlas Switches

John White
 

I have pretty much the same setup, including some of the slide switches and I also use a mini toggle with a momentary push button to activate the switch motor. Works pretty well. Hope this helps
John White


Re: Atlas Switches

Drew Aldridge
 

Any momentary SPDT switch from an electronics supplier will work. It will be labeled (On) Off (On). The brackets () designate momentary.

I just bought one myself yesterday to check some uneeded switches. 


Re: Where to isolate on large loops and wye

Blair
 

If I understand you, Charles, what I'd advise is connecting the reverser at the center of the reversing section, feeding the reverser from the nearby bus feeding the rest of the track.

Blair


On 2021-02-17 10:53, Charles Cauble wrote:
I’m studying and planning how to connect the isolated reversing sections on my layout. One question bothering me is if the section is long and you can’t connect it directly to the bus line, can you split the auto reversing’s two wires and attach them at two different places?


Re: Where to isolate on large loops and wye

Charles Cauble
 

I’m studying and planning how to connect the isolated reversing sections on my layout. One question bothering me is if the section is long and you can’t connect it directly to the bus line, can you split the auto reversing’s two wires and attach them at two different places?


Re: Atlas Switches

Daniel Brewer
 

Hi Jimmy,

I use MRCS MP1 v2 switches. 

http://www.modelrailroadcontrolsystems.com/mp1-version-2-switch-motor/

They are  1.5" wide, 1.5" high by .5" deep and I mount them on top of my layout right next to the turnout. I use 1/2" foam for my sub roadbed and just bury them with a thin sheet of styrene over them and add scenery materials. The throw wire (I use straightened large paperclips) can be ent to conform to the edge of your roadbed so they are virtually undetectable. You can mount them under the base layer ( I use 3/16" luan) as well with small screws.

Dan

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