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 Posted - May 16 2015 : 12:43:31 PM
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My friend is building a reversing Wye formation, that is three tracks converging from three Y switches using Peco electro-frog turnouts. Aside from insulating the inner rail of each of the three turnouts, would such a formation require but one automatic reversing module, wired between any given fully insulated tracks?
He seems to think he would need three, one for each leg. I don't get that. I thought one should be enough.
Edited by - Chops124 on May 16 2015 12:46:35 PM
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Posted - May 16 2015 : 1:47:42 PM
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| From my reading, one should be sufficient. But have no first hand experience.
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Posted - May 16 2015 : 3:08:39 PM
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You need to insulate both rails of one tail of the wye and wire your reversing module to that:
Carpe Manana!
Edited by - scsshaggy on May 16 2015 3:17:30 PM
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Posted - May 17 2015 : 2:58:01 PM
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| Ah, so instead of putting the reversing module into the middle of the works, you've moved it out to side.
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Posted - May 17 2015 : 6:32:01 PM
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That's the easiest way in straight DC analog. I suppose that with DCC and the automatic module, you could insulate one leg of the wye instead of the tail and that would work, too. The thing about that, though, is you couldn't have a locomotive consist longer than that leg of the wye or the module wouldn't know which end to match to the rest of the layout.
Carpe Manana!
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Posted - May 18 2015 : 6:16:19 PM
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| the easiest and cheapest way to wire the reversing tail of a wye is to connect the tail track to the contacts of the switch motor used to line the switch on the tail track. if your switch motor doesn't have contacts, you can use an atlas snap relay wired in parallel with the switch motor. I don't have a diagram with me, but you wire the relay contacts so that whenever the switch is thrown, the relay reverses polarity to the tail track.
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Posted - May 18 2015 : 11:05:46 PM
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A benefit of that method (switch machine contacts) over the reversing module is that it works for DCC or analog DC.
Carpe Manana!
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