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Re: Combining Multiple Power Bus Wires

Blair
 

If you intend to use a lot of locomotives with sound, you'll want to use PSX circuit breakers as they're solid state; I have four PM42 boards in operation, and I have to limit the number of locos in the staging yards, or isolate the locomotives, as on power up the PM42 sections detect the sound locomotives as short circuits, and they start cycle-tripping.  Since these are temporary staging yards, I'm just living with this for now(I just slide a slice of paper under the wheels of some of the locos), but ultimately I'll have to do something to permanently reduce the power-on transient, or replace the PM42 units.

Blair

On 2021-03-13 13:13, JoAnn Donaldson via groups.io wrote:
I agree with the PM42. My layout is split into 4 zones. Each zone is powered by a different output. One other thing that no one has mention and that is you need to have isolated rail joiners between zones. No matter if you use a circuit breaker of a PM42, you can not connect the zones directly to each other.

JoAnn Donaldson

On Saturday, March 13, 2021, 9:44:21 AM CST, Daniel via groups.io <danielnapoli@...> wrote:


Hi, 
Digitrax PM42 may be used as circuit brakers? 
Thank to all by all the help!
Daniel from Argentina 

El 13 mar. 2021, a la(s) 12:03, Wil Davis <wdavis5069@...> escribió:


I agree with the circuit breakers.  The ones I use automatically separate the buses as wires from the booster are daisy chained to the circuit breakers and each breaker has its own output to the bus.



Re: Combining Multiple Power Bus Wires

JoAnn Donaldson
 

I agree with the PM42. My layout is split into 4 zones. Each zone is powered by a different output. One other thing that no one has mention and that is you need to have isolated rail joiners between zones. No matter if you use a circuit breaker of a PM42, you can not connect the zones directly to each other.

JoAnn Donaldson

On Saturday, March 13, 2021, 9:44:21 AM CST, Daniel via groups.io <danielnapoli@...> wrote:


Hi, 
Digitrax PM42 may be used as circuit brakers? 
Thank to all by all the help!
Daniel from Argentina 

El 13 mar. 2021, a la(s) 12:03, Wil Davis <wdavis5069@...> escribió:


I agree with the circuit breakers.  The ones I use automatically separate the buses as wires from the booster are daisy chained to the circuit breakers and each breaker has its own output to the bus.



Re: Combining Multiple Power Bus Wires

Daniel
 

Hi, 
Digitrax PM42 may be used as circuit brakers? 
Thank to all by all the help!
Daniel from Argentina 

El 13 mar. 2021, a la(s) 12:03, Wil Davis <wdavis5069@...> escribió:


I agree with the circuit breakers.  The ones I use automatically separate the buses as wires from the booster are daisy chained to the circuit breakers and each breaker has its own output to the bus.



Re: Combining Multiple Power Bus Wires

Wil Davis
 

I agree with the circuit breakers.  The ones I use automatically separate the buses as wires from the booster are daisy chained to the circuit breakers and each breaker has its own output to the bus.



Re: Combining Multiple Power Bus Wires

Wil Davis
 

I agree with the circuit breakers.  The ones I use automatically separate the buses as wires from the booster are daisy chained to the circuit breakers and each breaker has its own output to the bus.



Re: Combining Multiple Power Bus Wires

David McBrayer
 

Alan,

My first suggestion would be to acquire (if you have not already done so) and install a multi-circuit DCC circuit breaker.  Yes, there will be a cost - paid one time.  A short circuit on the track using your Power Pro without a circuit breaker may be VERY costly.  Per the instructions, ndividually feed each power district from the circuit breaker assembly.  Check out the reliable sources: NCE, the Files section for this Group, and Wiring for DCC web site (W4DCC),  for a start.  I'm having a senior moment re the others--somebody help me out here. 

--Dave McBrayer

On 03/12/2021 3:16 PM, alynmar@... wrote:
I am building a new layout that will be in three sections, each with its own power bus.  What is the best way to combine/connect these wires together with the wires from my 
NCE Power Pro?
Alan

--
Dave McBrayer
Castro Valley, CA 


Combining Multiple Power Bus Wires

alynmar@...
 

I am building a new layout that will be in three sections, each with its own power bus.  What is the best way to combine/connect these wires together with the wires from my 
NCE Power Pro?
Alan


Re: Traditional Long Reversing Sections modified to Very Short Reverser Tracks

Brian Eiland
 

Just found out how to add photos and diagrams in an album,...added some


Added album Reverser Track considerations, long vs short #photo-notice

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

Brian Eiland <railandsail@...> added the album Reverser Track considerations, long vs short: Looking at alternatives as to where and how long my reverser tracks need to be


Traditional Long Reversing Sections modified to Very Short Reverser Tracks

Brian Eiland
 

Traditional Long Reversing Sections modified to Very Short Reverser Tracks

 

I've been working on an idea to modify my layout plan from 2 long traditional reversing sections, to 2 short reversing tracks. Basically I'm trying to exchange the idea of providing reversing sections for the entire length trains to very short sections for just the locomotives. I need the reverser(s) to change the polarity of the group of tracks on the left hand side of my layout with the group of tracks on the right side,...to bring them into compatibility.

I'm in a learning process doing this exercise since my electrical knowledge is limited. It's pretty well documented over on this forum discussion with text and drawings,...
https://model-railroad-hobbyist.com/node/41912

 

Summary:
What I am proposing is that ALL of the tracks on the right hand shelf of my layout (including the 2 viaduct mainlines and both sidings G to D, and F to E, would be wired with their positive rail closest to the wall. Both of those sidings would end up making an approx 180 degree turn to enter the peninsula trackage. Then all of the peninsula trackage would be wired accordingly with their positive rails to the left, and negative rails to the right. Neither of those siding would be reverse sections. All of this track on the right hand shelf and the peninsula area would be polarity compatible. It would be a big zone/power district unto itself, protected by a single PSX unit.

Likewise all trackage on the left hand side/shelf of the layout would be its own power district, protected by its own PSX unit.

These 2 power district would 'communicate' at several different points. At the very top where a single viaduct track joins the 2 districts, and at the bottom where the mainlines cross a bridge across the entranceway. At both of these locations they insulated from one another and they are polarity compatible, as is asked for across joined power districts.

It is in the middle where we need a polarity reverser to effect the joining of these 2 big districts. It is that area where I have suggested the track reverser(s), either one for both tracks or 2 if necessary.


And these reverser sections might only need to be long enough to reverse the locomotives themselves,....photos
https://model-railroad-hobbyist.com/node/41912?page=3#comment-468282


Re: short length reverse section

Don Vollrath
 

As shown and you describe... once you get a train running clockwise toward the lower left loop on either track you cannot get the train to flow counter clockwise without backing up through the track you have circled. 

DonV


Re: DCC and DC

nnjstevenstrong@...
 

I am very interested in DCC wiring  and consisting with my engines someofthem from Rapido. I am a begginer.  James  nnjstevenstrong@...   15199625392

Sent: Tuesday, March 09, 2021 6:40 PM
Subject: Re: [w4dccqa] DCC and DC
 
I am very keen to learn more re DC + DCC wiring.  Read all the 'don't do it' articles.  Glad to find someone who has done it and had no problems.  Wonderful!

I simply have too many DC engines which are not suitable for conversion and I don't want to part with them.  Thought about tracks of DC only and DCC only.  But with about 100+ engines, I'd like flexibility of using any track for either.
The double pole, double throw switches way seemed too risky. Tried to find what you have and could not.  Instead, I've decided to wire each of my my circuits / tracks to a 25 pin socket.  Then two different plugs - one for the DC system and one for the DCC system.  Only wiring and no systems nor track power dependent accessories between track and socket. 

I did find a way of wiring the sockets and plugs so that a section of isolated / neutral track between paired points / turnouts would not have power unless the plugs matched. 

A DC/DCC detector was always first preference.  I've now got the notes and diagram for the DC/DCC detector.  Many thanks.
Admittedly there is still the human factor - matching engine to system.  But the effort of changing plugs should reduce the risk far lower than simply / accidentally flicking a switch.
Questions:
  1. I have a Viessmann Commander.  They have advised that this unit "provides a fully digital rectangular voltage to the track.  It is not the same as in the past with modulated systems."  Will this be compatible?
  2. The Viessmann includes the ability to block / occupation detect and program auto runs.  Will occupation detection be affected by OR affect the DC / DCC detector?
  3. The Viessmann 5280 turnout decoders include isolated / individual common / green wires for each turnout.  For many reasons, I'd like to keep that feature.  Can the DC / DCC detector be adapted to keep them isolated?  ie two tracks compared with eg four common turnouts with isolated common / green wires.




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short length reverse section

Don DeSandre
 

I have under construction a small N scale layout that will be set up with detection and Train Controller. I use resistor wheel sets and run lighted passenger cars. I have uploaded a photo to the album " how to wire this reverse section. I have two back to back double slips with a short length of track that connects to another turnout. Can i just use that small section as a reversing section or can some one suggest the best way to do it.
                                                          Thank you in advance,
                                                                                               Don DeSandre


Re: DCC and DC

mailjohnwinter@...
 

I am very keen to learn more re DC + DCC wiring.  Read all the 'don't do it' articles.  Glad to find someone who has done it and had no problems.  Wonderful!

I simply have too many DC engines which are not suitable for conversion and I don't want to part with them.  Thought about tracks of DC only and DCC only.  But with about 100+ engines, I'd like flexibility of using any track for either.
The double pole, double throw switches way seemed too risky. Tried to find what you have and could not.  Instead, I've decided to wire each of my my circuits / tracks to a 25 pin socket.  Then two different plugs - one for the DC system and one for the DCC system.  Only wiring and no systems nor track power dependent accessories between track and socket. 

I did find a way of wiring the sockets and plugs so that a section of isolated / neutral track between paired points / turnouts would not have power unless the plugs matched. 

A DC/DCC detector was always first preference.  I've now got the notes and diagram for the DC/DCC detector.  Many thanks. 
Admittedly there is still the human factor - matching engine to system.  But the effort of changing plugs should reduce the risk far lower than simply / accidentally flicking a switch.
Questions:
  1. I have a Viessmann Commander.  They have advised that this unit "provides a fully digital rectangular voltage to the track.  It is not the same as in the past with modulated systems."  Will this be compatible?
  2. The Viessmann includes the ability to block / occupation detect and program auto runs.  Will occupation detection be affected by OR affect the DC / DCC detector?
  3. The Viessmann 5280 turnout decoders include isolated / individual common / green wires for each turnout.  For many reasons, I'd like to keep that feature.  Can the DC / DCC detector be adapted to keep them isolated?  ie two tracks compared with eg four common turnouts with isolated common / green wires.


Re: Long AR with a turnout in the middle.

 

Thanks Don,
That is easy and makes sense.
-Michael


Re: Long AR with a turnout in the middle.

Don Vollrath
 

Michael, look at the drawing you posted. Take a red pen and color in the horizontal line at the top of the sketch to the next turnout toward the left. Put insulating joiners there and include that section of track as part of the AR section, including the other red tracks and the turnout toward the right. I don’t see a need to do anything else.

DonV


Re: Long AR with a turnout in the middle.

 

Thanks Paul,
One of the great benefits of aging is the inability to see what is right in front of us.
I got the image loaded. It is in the folder labeled

Long AR with a turnout in the middle.

-Michael


Re: Long AR with a turnout in the middle.

Paul O <pomilian@...>
 

Michael, click on the album you created; click on the “+ add photo” box; click on the “browse“ box; select the photo that you want to upload; click on “add “.

Paul O

On Mar 5, 2021, at 11:50 PM, Michael Boyle <boyle10017@...> wrote:

Well, the diagram didn't come through and I can't figure out how to upload a photo, though I've created an Album.
Help?
-Michael Boyle


Re: Long AR with a turnout in the middle.

 

Well, the diagram didn't come through and I can't figure out how to upload a photo, though I've created an Album.
Help?
-Michael Boyle


Re: Long AR with a turnout in the middle.

 

Hello Allan,
Thanks for your help. I tried to upload a photo, following the instructions on the Help page, but could not find the Add Photos Button. So I've pasted the diagram below. The red track is where I think the reversing section should be. There is a large yard off to the left.

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