Date   

Re: Where to isolate on large loops and wye

Steve Haas
 

The manual for the NCE command station will tell you to connect that “booster common” to one of the screws on the NCE Power Pro (Command station and booster).

 

Best regards,

 

Steve

 

Steve Haas

Snoqualmie, WA

 

 

 

 

 

From: w4dccqa@groups.io <w4dccqa@groups.io> On Behalf Of Charles Cauble
Sent: Monday, February 22, 2021 1:22 PM
To: w4dccqa@groups.io
Subject: Re: [w4dccqa] Where to isolate on large loops and wye

 

Thanks to all for your help.  I’ve been busy laying track. I also have a PM42 with breakout board to split my layout into 3 or 4 districts.  In the instructions it says the third wire should be a ground wire to a booster.  Since my command station is a 5amp NCE the booster is built in. I don’t know where I should ground it.  It mentions the third wire and Digitrax system. Is it  not needed with NCE?


Re: Where to isolate on large loops and wye

Blair
 

Charles

Answer - If your booster has a booster common, that's where the PM42 "ground wire" goes; do not 'ground' it.  I'm not an NCE user.  Someone with knowledge of how to common-reference NCE boosters should chip in here.

For further interest, here's some good reading on Commons and Grounds in the DCC world:

https://sites.google.com/site/markgurries/home/technical-discussions/boosters/booster-ground-commons

Blair


Re: Where to isolate on large loops and wye

Charles Cauble
 

Thanks to all for your help.  I’ve been busy laying track. I also have a PM42 with breakout board to split my layout into 3 or 4 districts.  In the instructions it says the third wire should be a ground wire to a booster.  Since my command station is a 5amp NCE the booster is built in. I don’t know where I should ground it.  It mentions the third wire and Digitrax system. Is it  not needed with NCE?


Re: Wiring Up a Manual Turntable?

wirefordcc
 

Hi Dave,

I should have said, keep those ideas coming! The one scary thing I worry about is running out of ideas for my column. I scan my Q&A forum, as well as some of the other forums for ideas. So far, so good.

Thanks!

Allan Gartner

-----Original Message-----
From: w4dccqa@groups.io <w4dccqa@groups.io> On Behalf Of Dave Emery via groups.io
Sent: Sunday, February 21, 2021 2:57 PM
To: w4dccqa@groups.io
Subject: Re: [w4dccqa] Wiring Up a Manual Turntable?

Alan, I think ‘wiring a turntable for DCC’ would make a great MR column.

dave


Re: Wiring Up a Manual Turntable?

wirefordcc
 

Hi Dave,

I have already had that thought! 😊

Allan

-----Original Message-----
From: w4dccqa@groups.io <w4dccqa@groups.io> On Behalf Of Dave Emery via groups.io
Sent: Sunday, February 21, 2021 2:57 PM
To: w4dccqa@groups.io
Subject: Re: [w4dccqa] Wiring Up a Manual Turntable?

Alan, I think ‘wiring a turntable for DCC’ would make a great MR column.

dave


Re: Wiring Up a Manual Turntable?

Dave Emery
 

Alan, I think ‘wiring a turntable for DCC’ would make a great MR column.

dave


Re: Where to isolate on large loops and wye

wirefordcc
 

Hi Charles,

Look at page 20 of the PSX-AR manual.  There is a simple way of causing the turnouts to flip without using your train to do so.

Allan Gartner
Wiring for DCC


Re: Where to isolate on large loops and wye

Charles Cauble
 

Another question regarding a reversing area.  I have a pair of switches that throw after the train goes across the reversing area to accommodate the train as it comes back. The tortoise motors are both controlled by the psx-ar reversing the section.  Is there a way I could throw those switches without running a train through the section?
thanks,  Charles


Re: Wiring Up a Manual Turntable?

wirefordcc
 

Hi Brian,

 

I see I already have another question from you.  So I already have your city and state.  Just let me know it is okay to use your turntable question.  Thanks for being a regular reader of the Q&A forum!

 

Allan Gartner

 

 

From: w4dccqa@groups.io <w4dccqa@groups.io> On Behalf Of Brian Eiland via groups.io
Sent: Saturday, February 20, 2021 8:26 AM
To: w4dccqa@groups.io
Subject: [w4dccqa] Wiring Up a Manual Turntable?

 

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: 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

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