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Wye and Loop Gaps for Reversing on DCC

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  • Member since
    October 2017
  • 43 posts
Posted by Future4oo0 on Wednesday, November 14, 2018 11:50 AM
Any help on the loops now that I added better photos? Thanks for all your help on the WYE
  • Member since
    September 2004
  • From: Dearborn Station
  • 24,281 posts
Posted by richhotrain on Wednesday, November 14, 2018 12:57 PM

Future4oo0
Any help on the loops now that I added better photos? Thanks for all your help on the WYE 

Check my first post this morning. Was that not helpful?

Rich

Alton Junction

  • Member since
    October 2017
  • 43 posts
Posted by Future4oo0 on Wednesday, November 14, 2018 1:14 PM

Yes, sorry must have overlooked it, a little tired from all the traveling. Smile

Thank you for all your help! 

  • Member since
    March 2015
  • 2 posts
Posted by hwgarratt on Sunday, November 25, 2018 9:51 PM

Gaps for DCC are no different than gaps for DC.  The difference is that a piece of electronics is swithing polarity.

One thing to remember is that the reverse section (loop or wye) needs to be longer than the longest train.  Otherwise, you end up with a train that will reverse the phase as it exits the reverse block while the other end is still entering.

On the wiringfordcc website, a number of the diagrams for wyes show the reverse section on one side of a wye.  That only works if the train is shorter than the leg of the wye, not very common.  A better arangement is to reverse one tail of the wye.  Both wiringfordcc and dccwiki imply that the tail of the wye can't reconnect to the rest of the layout; as long as the tail is long enogh to hold a whole train, the tail will reverse as the train exits the wye.

In the worst case, at least one model of AR (PSX-AR) lets you connect 2 AR blocks together without an intermediate non-reversed block.  You just have to adjust the timing so one takes longer to reverse.

Dave Squire 

  • Member since
    October 2017
  • 43 posts
Posted by Future4oo0 on Monday, November 26, 2018 10:23 AM
Thanks Dave, appreciate your feedback. Have not wired it yet still laying the final tracks but wiring will start soon.

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