Date   
Re: Something a Little Different

Glenn
 

Thanks to all for your inputs.

It will work, I tried an experiment, but it failed some what. The trolley
runs like a jack rabbit doing wheelies in one direction.

The pack I was using was a cheapie, so I had little control over the voltage
input. But I think lowering the input from a transistorized pack will slow
down the trolley without affecting the performance of the AR. My experience
with IC circuitry tells me most IC's operate on about 5vdc. The 12V input of
DCC AR's is probably just DCC default.

Thank you Alan for the Cubicle Circuit, I may just have a similar one on a
bread board in my electronics Junk Box.

Glenn

-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Vollrath, Don
Sent: Monday, April 15, 2013 16:19
To: WiringForDCC@...
Subject: RE: [WiringForDCC] Something a Little Different

The simple answer is No as the DCC auto-reversers operate from the fixed DCC
voltage and short circuit amps of the track bus. The typical adjustable DC
supply for the trolley won't work.

Re: Magnetic Reed Switches

Paul O
 

RicZ

This appears to be what you're looking for:

http://tinyurl.com/d65fjlx

Latching reed sensor, operated with a magnet.



MK06-10-E Available for about $6 from Digi-Key:

http://tinyurl.com/bplypuu





Paul O





From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Eric
Sent: Monday, April 15, 2013 6:46 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Re: Magnetic Reed Switches





Thanks Kevin and Paul,
How would I set up the reed switch to turn on the LEDs by passing a magnet
over the car, and then turning them off by passing the magnet over the car a
second time? I plan to use 3v coin cell batteries to power a couple of LEDs,
but I need to be able to turn them off when the session is complete.

Re: Magnetic Reed Switches

Michael <mckeevermichael@...>
 

Why not just buy the Rapido Easy Peasy Lights for your Scale?:
http://www.rapidotrains.com/light_ho.html or
http://www.rapidotrains.com/light_n.html

R/S,
Mac in SoCal, N Scale, ATSF, SP, UP in Transition Era, Barstow Area

--- In WiringForDCC@..., "Eric" <ezrails@...> wrote:

I would like to use reed switches to control battery powered LEDs in my passenger cars. I need some help understanding what type on switches to buy and just how they work using an external magnet. Help greatly appreciated.

RicZ

Re: Magnetic Reed Switches

Scott H. Haycock
 

Ed,
They work by waving a magnetic wand over the roof of the car to turn the battery powered lights on and off. Se: http://www.rapidotrains.com/light_ho.html


Scott Haycock
Modeling Tarheel country in the Land of Enchantm ent

----- Original Message -----





Scott,

I am not familiar with Rapido cars.... how do they work?

Ed S





[Non-text portions of this message have been removed]

Re: Magnetic Reed Switches

Flash Gordon
 

Scott,

I am not familiar with Rapido cars.... how do they work?

Ed S

--- In WiringForDCC@..., "Scott H. Haycock " <shhaycock@...> wrote:

Ed,
Isn't RickZ's idea the way Rapido passenger car lighting works?


Scott Haycock

Re: Something a Little Different

wirefordcc
 

Glenn,



If your goal is to have a trolley stop at two end points, wait a while, than
reverse, see my cubicle train at:





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



It only works with a DC trolley (not a DCC) one.



The whole thing works without sensors and works with only two wires to the
track.



Allan

Wiring For DCC





From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Glenn
Sent: Monday, April 15, 2013 2:54 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Something a Little Different





This is probably way off the DCC topic.

Can a DCC auto reverser be use on a DC track to change the direction of a
trolley?

I know there are such animals out there, but try finding one in this DCC
world. I have tried searching the web, but always seem to come back to DCC
products.

Logic tells me that if I wire one end (R) stopping section opposite of the
main (M) track the auto reverse module will reverse the polarity of the
main. My problem is how to wire the stopping section on the other (L) end.

My logic brain says it should be opposite the R end. The main track should
be the one that changes polarity.

Like this:

L M R Tripped> L M R
- - + - + +
+ + - + - -

Glenn

Re: Something a Little Different

Al Silverstein <silversteina@...>
 

Glen,

You might want to check out the Circuitron AR-1 and AR-2 Automatic Reversing Circuits. I have seen these used where a DC trolley moves back and forth between two points on a trolley line on layouts were the trains are running on DCC on the railroad tracks. .

Al Silverstein

----- Original Message -----
From: "Glenn" <ghazel@...>
To: <WiringForDCC@...>
Sent: Monday, April 15, 2013 3:54 PM
Subject: [WiringForDCC] Something a Little Different


This is probably way off the DCC topic.

Can a DCC auto reverser be use on a DC track to change the direction of a
trolley?

I know there are such animals out there, but try finding one in this DCC
world. I have tried searching the web, but always seem to come back to DCC
products.

Logic tells me that if I wire one end (R) stopping section opposite of the
main (M) track the auto reverse module will reverse the polarity of the
main. My problem is how to wire the stopping section on the other (L) end.

My logic brain says it should be opposite the R end. The main track should
be the one that changes polarity.

Like this:

L M R Tripped> L M R
- - + - + +
+ + - + - -

Glenn

Re: Magnetic Reed Switches

Scott H. Haycock
 

Ed,
Isn't RickZ's idea the way Rapido passenger car lighting works?


Scott Haycock
Modeling Tarheel country in the Land of Enchantm ent

----- Original Message -----





RicZ,

The reed switch does not work that way. You would have to leave the
magnet in place to turn them off. So you would need a Normally Closed
Reed Switch (NC).


Ed S





[Non-text portions of this message have been removed]

Re: Magnetic Reed Switches

Flash Gordon
 

RicZ,

The reed switch does not work that way. You would have to leave the magnet in place to turn them off. So you would need a Normally Closed Reed Switch (NC).

I am thinking about putting AAA rechargeable batteries in the car, with contacts out the bottom that would brush along a 4th and 5th rail under the car when it is in a terminal to pick up passengers. This would recharge the batteries with no human intervention. Also cool that the lights would stay on when you shut down the layout until the batteries discharged. In operation some cars may be on some off as in a real passenger train.

Ed S

At 06:45 PM 4/15/2013, you wrote:


Thanks Kevin and Paul,
How would I set up the reed switch to turn on the LEDs by passing a magnet over the car, and then turning them off by passing the magnet over the car a second time? I plan to use 3v coin cell batteries to power a couple of LEDs, but I need to be able to turn them off when the session is complete.

RicZ

Re: Magnetic Reed Switches

Kenneth Burr
 

When selecting a reed switch make sure that it is the latching type, or else you will need to keep the magnet near by in order to keep the switch either in the on position or off position, otherwise the reed switch will revert back to the previous state as soon as the magnet is removed.  While I have been able to find such switches in the past, I have not been able to find a current source for such switches.  As a result I am using latching sold state hall effect sensors in place of reed switches.  These sensors latch on when one pole of the magnet is brought near them, and then stay on even after the magnet is removed.  To turn the hall effect sensor off, then the other pole of the magnet is brought near the sensor, and the sensor will then stay off until such time later as the other pole of the magnet is brought near the sensor.
Ken Burr




________________________________
From: Eric <ezrails@...>
To: WiringForDCC@...
Sent: Monday, April 15, 2013 5:45 PM
Subject: [WiringForDCC] Re: Magnetic Reed Switches



 
Thanks Kevin and Paul,
How would I set up the reed switch to turn on the LEDs by passing a magnet over the car, and then turning them off by passing the magnet over the car a second time? I plan to use 3v coin cell batteries to power a couple of LEDs, but I need to be able to turn them off when the session is complete.

RicZ

--- In WiringForDCC@..., "Paul O" <pomilian@...> wrote:

Ric, a couple more sites:

http://www.explainthatstuff.com/howreedswitcheswork.html



http://www.reed-sensor.com/Notes/



Just do a Google search on "reed switches".



Paul O



From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Eric
Sent: Monday, April 15, 2013 2:47 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Magnetic Reed Switches





I would like to use reed switches to control battery powered LEDs in my
passenger cars. I need some help understanding what type on switches to buy
and just how they work using an external magnet. Help greatly appreciated.

RicZ









[Non-text portions of this message have been removed]

Re: Magnetic Reed Switches

Eric
 

Thanks Kevin and Paul,
How would I set up the reed switch to turn on the LEDs by passing a magnet over the car, and then turning them off by passing the magnet over the car a second time? I plan to use 3v coin cell batteries to power a couple of LEDs, but I need to be able to turn them off when the session is complete.

RicZ

--- In WiringForDCC@..., "Paul O" <pomilian@...> wrote:

Ric, a couple more sites:

http://www.explainthatstuff.com/howreedswitcheswork.html



http://www.reed-sensor.com/Notes/



Just do a Google search on "reed switches".



Paul O



From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Eric
Sent: Monday, April 15, 2013 2:47 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Magnetic Reed Switches





I would like to use reed switches to control battery powered LEDs in my
passenger cars. I need some help understanding what type on switches to buy
and just how they work using an external magnet. Help greatly appreciated.

RicZ





[Non-text portions of this message have been removed]

Re: Magnetic Reed Switches

Thomas
 

Eric
You might find this article by Dave Bodnar interesting.
http://trainelectronics.com/LED_Articles_2007/LEDs_for_Coaches/index.htm
Part way down the page he talks about reed switches.
Tom
 


________________________________
From: Eric <ezrails@...>
To: WiringForDCC@...
Sent: Monday, April 15, 2013 2:47 PM
Subject: [WiringForDCC] Magnetic Reed Switches
 


 

I would like to use reed switches to control battery powered LEDs in my passenger cars.
 


[Non-text portions of this message have been removed]

Re: Something a Little Different

Flash Gordon
 

Glen,

I do not think it will work. DCC runs with AC not DC ..... the DC in DCC does not stand for DC. Is that complicated to say or what.

Ed S

At 03:54 PM 4/15/2013, you wrote:


This is probably way off the DCC topic.

Can a DCC auto reverser be use on a DC track to change the direction of a
trolley?

I know there are such animals out there, but try finding one in this DCC
world. I have tried searching the web, but always seem to come back to DCC
products.

Logic tells me that if I wire one end (R) stopping section opposite of the
main (M) track the auto reverse module will reverse the polarity of the
main. My problem is how to wire the stopping section on the other (L) end.

My logic brain says it should be opposite the R end. The main track should
be the one that changes polarity.

Like this:

L M R Tripped> L M R
- - + - + +
+ + - + - -

Glenn

Re: Something a Little Different

Vollrath, Don <dvollrath@...>
 

The simple answer is No as the DCC auto-reversers operate from the fixed DCC voltage and short circuit amps of the track bus. The typical adjustable DC supply for the trolley won't work.

If you are talking about a single main track with a balloon loop at each end, then yes it is the main line and the turnouts at each end that need to reverse in polarity to have a DC trolley run the other direction. An opto-detector at each end and a latching relay can be used to change the track polarity and flip the turnouts just as the trolley approaches the exit end of the constant polarity loops. Need a 4PDT relay or 2 relays... one to control main track direction, the second to throw both turnout motors so that the trolley always enters and exits the end loops in the same direction. There are other gadgets you can purchase to do just that. Google it to see what is out there.

DonV

-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of Glenn
Sent: Monday, April 15, 2013 2:54 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Something a Little Different

This is probably way off the DCC topic.

Can a DCC auto reverser be use on a DC track to change the direction of a trolley?

I know there are such animals out there, but try finding one in this DCC world. I have tried searching the web, but always seem to come back to DCC products.

Logic tells me that if I wire one end (R) stopping section opposite of the main (M) track the auto reverse module will reverse the polarity of the main. My problem is how to wire the stopping section on the other (L) end.

My logic brain says it should be opposite the R end. The main track should be the one that changes polarity.

Like this:

L M R Tripped> L M R
- - + - + +
+ + - + - -

Glenn



------------------------------------

http://www.WiringForDCC.comYahoo! Groups Links

Something a Little Different

Glenn
 

This is probably way off the DCC topic.

Can a DCC auto reverser be use on a DC track to change the direction of a
trolley?

I know there are such animals out there, but try finding one in this DCC
world. I have tried searching the web, but always seem to come back to DCC
products.

Logic tells me that if I wire one end (R) stopping section opposite of the
main (M) track the auto reverse module will reverse the polarity of the
main. My problem is how to wire the stopping section on the other (L) end.

My logic brain says it should be opposite the R end. The main track should
be the one that changes polarity.

Like this:

L M R Tripped> L M R
- - + - + +
+ + - + - -

Glenn

Re: Magnetic Reed Switches

Paul O
 

Ric, a couple more sites:

http://www.explainthatstuff.com/howreedswitcheswork.html



http://www.reed-sensor.com/Notes/



Just do a Google search on "reed switches".



Paul O



From: WiringForDCC@... [mailto:WiringForDCC@...] On
Behalf Of Eric
Sent: Monday, April 15, 2013 2:47 PM
To: WiringForDCC@...
Subject: [WiringForDCC] Magnetic Reed Switches





I would like to use reed switches to control battery powered LEDs in my
passenger cars. I need some help understanding what type on switches to buy
and just how they work using an external magnet. Help greatly appreciated.

RicZ

Re: Magnetic Reed Switches

Kevin Reeve
 

RicZ,

Here is a great article to get you started. http://en.wikipedia.org/wiki/Reed_switch

My experience has been either with the door alarm sensors that are reed switches or the tiny ones you can mount on a PC board.
Your choice is normally open or normally closed. You need to decide if you want the lights on when the magnet is present (normally open) or when the magnet is not (normally closed). That will determine what to buy. I see several options on ebay, and at electronic providers. You can go with the tiny ones as you are going into a small scale passenger car and do not need much current. I do not see any reason any of the small glass ones would not work for your situation. They are low voltage low current.

Kevin

--
Kevin L. Reeve | Ph: 435.797.0783 | kevin.reeve@...<applewebdata://6D59EB18-4C49-467B-AEF4-3C7ED9F9938D/kevin.reeve@...> |
| Information Technology @ Utah State University | 4420 Old Main Hill | Logan, UT 84322-4420

From: Eric <ezrails@...<mailto:ezrails@...>>
Reply-To: <WiringForDCC@...<mailto:WiringForDCC@...>>
Date: Mon, 15 Apr 2013 18:47:20 +0000
To: <WiringForDCC@...<mailto:WiringForDCC@...>>
Subject: [WiringForDCC] Magnetic Reed Switches



I would like to use reed switches to control battery powered LEDs in my passenger cars. I need some help understanding what type on switches to buy and just how they work using an external magnet. Help greatly appreciated.

RicZ

Magnetic Reed Switches

Eric
 

I would like to use reed switches to control battery powered LEDs in my passenger cars. I need some help understanding what type on switches to buy and just how they work using an external magnet. Help greatly appreciated.

RicZ

Re: Planning N scale DCC layout electrical questions using KATO UNITRACK

Mark Gurries
 

Scotl,

I agree it would be potentially better to use the Kato method to attach track feeders IF one is willing to pay the money and is not comfortable soldering.
However, with respect to creating problems with decoders because of soldering to the track may resulting in decoder blowing up, that is not true. The actual problem is well understood.
http://www.wiringfordcc.com/track_2.htm#c2

With respect to you claim of no problem, that depends on your performance standards and definitions of what is and is not a problem. If all you care is it works, that is one standard. If you want it to work as best it can be, that is a different standard. This is not to say your standard is bad, it is just different. Some people like practical cars and some people like sports cars. Nothing wrong with each because all the matters is you enjoying yourself. So I am happy you have no problems.



On Apr 2, 2013, at 9:13 AM, scotlandknight2002 wrote:

People using KATO Unitrack have the EASIEST way to make sure you have the CORRECT POLARITY FOR EITHER DC OR DCC POWERED SYSTEMS.... and THAT IS WITHOUT SOLDERING. SOLDERING works PERFECT FOR NON-KATO TRACK. KATO UNITRACK HAS what they call FEEDER TRACK (KATO 20-041) and when the plug is inserted with KATO LOGO SHOWING.. you will ALWAYS HAVE CORRECT POLARITY.

BY SOLDERING KATO UNITRACK YOU DEFEAT THE BUILT-IN ELECTRICAL CONTACTS THAT ARE ALREADY THERE. You are only making the track vulnerable to shorts by homemade contacts with possible engine motor/DCC-Sound decoder burnouts/failures.

I find in a 12 X 18 foot layout I have only TWO feeders going from the DCC Advanced Squared unit directly to the track.
RUNNING 10 or 11 engines at same time IS NO PROBLEM (consisted or not).

Biggest bonus is that you rarely need EXTRA FEEDER TRACKS in a SERIES of TURNOUTS because KATO TURNOUTS are POWERED thru the switches. In the switchyard I may place extra feeders LEADING INTO THE TURNOUTS THAT MAY LEAD INTO DIFFERENT AREAS.

--- In WiringForDCC@..., "Doug Stuard" <dstuard@...> wrote:

Not to pile on, but in the spirit of keeping it simple, see embedded ## comments below.

Doug Stuard

--- In WiringForDCC@..., Norman Seifert <stargazing_pilgrim@> wrote:


I am not an expert model railroader; please keep the answers as clear as possible, no “Change the voltage in the booster to 500 volts and connect both wires to the same rail.”
For a 3’x5’ N scale DCC layout:
1. What brand track conducts electricity and the DCC signal best?
## Any brand will do. All commercial track is nickel silver. With feeders at reasonable intervals, there is no difference. The main differences are whether you want molded roadbed (KATO Unitrack), sectional track (KATO, Atlas) or want to use flex track (Atlas, Micro-engineering, etc.). There are a number to choose from.

2. Is Atlas code 55 or 80 best for DCC conductivity?
## For all practical purposes they are the same.

3. I read someone recommended feeder wires to every section of track and not to use common rail wiring. ?
## Feeders every 3-4 ft. will do fine. TIf using flex track, this translates to a set of feeders for each piece. Do not use common rail wiring. Although it can be made to work, it causes more problems than it solves. Use Direct home wiring (both rails fed, both gapped at block boundaries), and the additional cost is minimal.

4. Do you really have to solder ever piece of track together?
## If using sectional track, solder rail joiners to make the 3-4 ft sections. Unsoldered joiners can work loose, causing electrical problems that can be difficult to fix once the track is down.

5. Which DCC command systems UNDER $300. are safest electrically for N scale?
## All are safe, as the voltages on exposed connections (i.e., the track) are low.

6. How do you prevent overheating current - burning up N decoders?
## Decoders are thermally protected unless you have an internal short, which is rare.

7. Maximum voltage of systems? Most are listed in amps.
## DCC track voltage ranges from 12 to 18 volts DCC, depending on scale. DCC is a form of AC that carries both power and data to the loco decoders.

8. Do you need a booster with reverse-loop-modulars?
## I'm not sure what you mean by "modulars" (modules perhaps?), but no, an auto reverse module can take its power from your main booster, no separate booster needed.

9. Do you need a transformer for reverse loop modulars?
## As above - no.

10. How to prevent 2nd. Locomotive(both DCC) from entering opposite end of reverse loop and causing a short? Only have one Open switch into the reverse track would work, but is there a wiring way to stop the second train?
## Same way you prevent a head on collision in your car. You pay attention!


## NP, HTH



------------------------------------

http://www.WiringForDCC.comYahoo! Groups Links


Best Regards,

Mark Gurries
Electrical Engineer
DCC Website & NMRA DCC Clinics: www.markgurries.com

Re: short whole layout with nce auto switch

Paul
 

David K,

Did you ever figure out the problem and the solution?

Paul

--- In WiringForDCC@..., david.kidd@... wrote:

i have Tony's PSX board for short circuit protection. When the NCE Power Cab is directly connected to the short circuit board, when a short circuits occurs the district with the short circuit shuts downand the rest of the layout keeps running. When the auto switch is connected between the power cab and the short circuit protection board the whole system shuts down. instead of the block causing the short circuit. Can you help cheers
David Kidd