Date   

Re: Where to isolate on large loops and wye

Blair
 

Tim, Charles

I think I've unfolded it correctly, and I see only one reversing section technically required; however, I think for operations sake, it would be better done as two separate pieces with a long non-reversing section between them.  See sketch "reversing.jpg" and markup "Charles sketch annotated.jpg" in your folder.

Blair


Re: Where to isolate on large loops and wye

Paul O <pomilian@...>
 

Charles, I took a shot at a solution.
Three reverse loops.

Paul O


Photo Rev Loops.png uploaded #photo-notice

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

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

By: Paul O <pomilian@...>


Re: Where to isolate on large loops and wye

Tim
 

Charles,

I've looked at your track plan (located here: https://groups.io/g/w4dccqa/photo/260783/0?p=Created,,,20,2,0,0)

You've got a lot going on here and it's going to take a bit to get my head around it.

Tim Rumph
Lancaster, SC


Re: Unknown Programming Mode

Eric Osborne
 

Jim,

The DCC controller has two boards: 1) a lower UNO board with a USB connection and a power adapter connection, and 2) an upper Motor Shield board with a single power adapter connection.  The upper board is attached to the lower board by a number of pin connections. I have tried every combination of powering up and resetting each board before connecting the USB to my laptop. No joy.  I also tried to read from the loco encoder and write to it.  Both times I got the timeout error 306. 

The LEDs on the Motor Shield did not come on the entire time which may be a clue.  I verified that power is reaching the board. The UNO board does light up when powered.

I looked for a battery back-up on each board, but did not find one so I assume the memory is cleared when powered down.

Any ideas?

Thanks,

Eric


On Sun, Feb 14, 2021 at 8:43 AM Jim Betz <jimbetz@...> wrote:
Eric,
  Try unplugging cables to the USB (both of them), powering everything down.
power all up one at a time, connect cables to USB, launch Dpro.
                                                                                                               - Jim


Re: Limits for using 14 AWG for track bus

Keith Elrod
 

3M's Brown (#567) IDC's work with 12g. You could then use a 12g buss (I use only solid wire) and come off of that with 14g feeding terminal blocks.


Re: Where to isolate on large loops and wye

wirefordcc
 

All,

Reversing seems to be such a challenge for modelers, I have created a link to it in my website at:

http://www.wiringfordcc.com/intro2dcc.htm#reversing

This link is accessible from the blue header on my website from my home page.  

Reversing will also be a topic in my next column in Model Railroader.

Allan Gartner
Wiring for DCC
DCC Currents


Re: Limits for using 14 AWG for track bus

Don Vollrath
 

14 AWG is adequate for 5 amp DCC systems N or HO and probably S scales .
Bill, if your Smails don’t work... add an RC snubber.

DonV


Re: Where to isolate on large loops and wye

Blair
 

Charles

The section I referenced earlier is halfway down this page:

http://www.wiringfordcc.com/intro2dcc.htm

Titled "What happens to a train when the power reverses in an automatic reversing section?"

Blair



Re: Where to isolate on large loops and wye

Blair
 

Charles

In the DCC world, autoreversing does NOT affect train direction - that is an attribute the locomotive decoders manage internally. The purpose is rather to ensure that the rails have the same phase in block transitions.  The W4DCC website has an excellent section describing the difference.

Also, it will be hard for anyone to advise you about general layout wiring, and the locations that need autoreversers, without a layout schematic - not necessarily reflecting topology, but certainly showing the actual track routing.  If you don't have such a drawing, I'd suggest you create one to help yourself in sorting through the locations that might need reversers.

Blair


Where to isolate on large loops and wye

Charles Cauble
 

I’ve been installing my layout in isolated sections so that I could prove it with a locomotive. The laddered yard has an auto reverse that also switches the tortoise controlled turnouts. The loop was easy to spot so I was able to wire it. My problem is the upper part of my layout where if I connect the switches there will be a conflict of polarities. I do use frog juicers on all frogs. Any help or suggestions would be greatly appreciated because I’m stumped. Seems like auto reversing would affect other trains on the layout.


Re: Limits for using 14 AWG for track bus

Bill Wilken
 

I accidentally (don’t ask) used 14 AWG stranded on one power district that is roughly 30 feet long.  It worked fine for trains but it was not robust enough to carry DCC commands to Smail switch motors.  


On Feb 15, 2021, at 12:01 AM, Michael Boyle via groups.io <boyle10017@...> wrote:

I want to use 14 AWG for my track bus because it simplifies the installation process by allowing me to use 3M 905 IDCs. From the booster there will be two 30' runs. Am I just asking for trouble by using the 14AWG?
Thank you,
Michael Boyle


Re: Limits for using 14 AWG for track bus

Steve Haas
 

From: w4dccqa@groups.io <w4dccqa@groups.io> On Behalf Of Michael Boyle
Sent: Sunday, February 14, 2021 9:02 PM
To: w4dccqa@groups.io
Subject: [w4dccqa] Limits for using 14 AWG for track bus

 

I want to use 14 AWG for my track bus because it simplifies the installation process by allowing me to use 3M 905 IDCs. From the booster there will be two 30' runs. Am I just asking for trouble by using the 14AWG?
Thank you,
Michael Boyle


Limits for using 14 AWG for track bus

 

I want to use 14 AWG for my track bus because it simplifies the installation process by allowing me to use 3M 905 IDCs. From the booster there will be two 30' runs. Am I just asking for trouble by using the 14AWG?
Thank you,
Michael Boyle


Re: Unknown Programming Mode

Jim Betz
 

Eric,
  Try unplugging cables to the USB (both of them), powering everything down.
power all up one at a time, connect cables to USB, launch Dpro.
                                                                                                               - Jim


Unknown Programming Mode

Eric Osborne
 

Decoder Pro is locked up displaying the YELLOW Icon. I cannot toggle the Power Icon to GREEN or RED. 

Background: Powered up Arduino DCC+ Controller, Connected USB to laptop & Opened DPro. Started WiThrottle. Start remote throttle TCS UWT-100. Selected loco 1439 Kato E-8/9 with TCS KOD8-E installed.  Travels the entire Track C loop, and up the RH side of the Track B ramp up to the bridge. Stopped when it lost power at bridge join (bridge only set in place).  Loco re-aligned back on track. Started downhill. Light non-responsive. Then Throttle non-responsive as loco continued moving.  Had to kill power at powerstrip twice to get it to stopped. Stepped away and UWT lost wifi.  Reconnected, but non-responsive. DPro Toggled to RED.  Attempted to Toggle GREEN, but resulted in YELLOW. Re-started DPro. Power Icon still YELLOW. Would not toggle GREEN. Exited DPro.  Pushed Reset on Controller board.  Open DPro. Still locked on YELLOW Icon. Exited DPro. Disconnected USB. Cycled Power. Same result.  Did Factory Reset on UWT-100. Submenu says "7 Track Power: UNKOWN." Attempted multiple laptop and power reboots, resets to no avail.

Any help would be greatly appreciated!

Eric O.


Re: DCC tools ...

railrol
 

Jeff,     Thank you for your contribution to this Group, I see your tools to be very useful for myself.  I copied your 2 photos and will have to add Lighting Clips but otherwise this will be very easy to make.  Thanks again, Happy RR’ing,     Roland


Re: Question about placement and wiring for auto reverser

Bill Ervin
 

I got it and works fine now. Thanks for your help!
--
W.J. Ervin


Re: Smail question

JoAnn Donaldson
 

I have uploaded two pictures under the Album "My Red Oak Line". One picture is my crude drawing of my N Scale Layout. The Red dashes are the where the insulated rail joiners are to create four Power Districts. The second photo is my Command Station setup and buss wiring.

JoAnn Donaldson

On Wednesday, February 10, 2021, 3:32:27 PM CST, JoAnn Donaldson via groups.io <joannplano2005@...> wrote:


I am not running sound locos. My layout is N Scale and all of my locos only have basic DCC in them. So far they run great. I have accidentally shorted one of the hidden tracks while my son was running a freight on the front side. The track that shorted was Power Segment #1 and he was running on Power Segment #2. I have used this DCC Power Pack and PM42 on three different N Scale layouts with NO problems.

JoAnn Donaldson

On Wednesday, February 10, 2021, 11:04:54 AM CST, Jim Betz <jimbetz@...> wrote:


Joann,

  If you are running sound locos in HO or larger - be prepared for the PM42 to
not 'recover' from a short when you have more than one loco or a lighted
passenger train on the layout.  The PM42 was designed way back before
sound decoders were first available - and it has not been updated since!
                                                                                                                      - Jim


Photo Layout.png uploaded #photo-notice

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

The following photos have been uploaded to the My N Scale Red Oak Line Layout album of the w4dccqa@groups.io group.

By: JoAnn Donaldson <joannplano2005@...>

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