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Subject: 
Re: Railroad Dilemma
Newsgroups: 
lugnet.trains
Date: 
Thu, 25 Feb 1999 02:08:09 GMT
Viewed: 
4200 times
  
Ben,

Thanks Ben. I will try it out tonight. In question 2, I was just saying
if I ran one train around track#1, and had the switch going to track#2
(and not having the controller on, all the trains would be switched
off), would it cause a problem, or would it just be considered another
piece of track to go on.

I will let you know! Thanks again!

Scott Sanburn

Ben Fleskes wrote:
> 
> All,
> 
> see my comments below prefixed with 'ben>>'
> 
> Scott Edward Sanburn writes:
> > That sounds great Matt, in regards to TD3!
> > 
> > I guess my biggest concern involving the train situation is I would like
> > to have one switch rail between two lines or different tracks, each
> > having its own controller. I have a few questions regarding this
> > situation, I don't want to risk blowing anything up! :(
> 
> ben>> Lego trains seem pretty blow up proof, but I'll keep trying.  If I find a
> way to blow them up using only Lego pieces, I'll let you know.
> 
> > 
> > 1) Can a switch exist between two separate lines with two different
> > controllers?
> 
> ben>> Yes.  Simply be careful not to cause a short.
> 
> > 
> > 2) If so, is it possible to run just one controller for one train on the
> > same line if the switch is going to the other line? (I think it can)
> 
> ben>>  Not sure what you mean.  The train will simply respond to the voltage it
> sees.  If by switching the switch to the other line, you eliminate voltage to
> the part of track the train is on, the train will stop.
> 
> > 
> > 3) Along the same lines, can I have both controllers operating if the
> > switch is not connecting the two?
> 
> ben>> Yes.
> 
> > 
> > 4) Lastly, what would happen if I had both controllers running at the
> > same time with the switch connecting them is active (both would be
> > connected.)
> 
> ben>> You have essentially connect both loops in parallel with two parallel
> power supplies.  If the two controllers have opposite polarity you have a
> problem, which will cause a fault and stop the motor and possibly damage the
> motor if the situation lingers.  If both controllers have the same polarity,
> both trains will run with an amount of voltage from summing the addative powers
> of the two power supplies.  Note: since they are in parallel it is not a simple
> 1+2=3 scenario.  The formula escapes me but is a little more complicated.
> 
> <snip>
> 
> ben>> hope this helps.



Message is in Reply To:
  Re: Railroad Dilemma
 
All, see my comments below prefixed with 'ben>>' (...) ben>> Lego trains seem pretty blow up proof, but I'll keep trying. If I find a way to blow them up using only Lego pieces, I'll let you know. (...) ben>> Yes. Simply be careful not to cause a (...) (28 years ago, 25-Feb-99, to lugnet.trains)

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