New to DCC - how do I do this

[Pedroboots]

New to DCC - in a figure of 8 I have lost the power to half of the layout. This appears simple but when the polarity is reversed what do i do ?

 

[Chrissaf]

I have written a tutorial for dealing with 'Reverse Loops', you can download it from the link below. But, if your layout is a Fig of 8 using a diamond crossing (rather than points) at the Fig 8 cross-over location. Then it wont have a 'Reverse Loop' in it, and thus no rail reversal. This assumes that the any diamond crossing at this location has Insulfrogs.

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https://btcloud.bt.com/web/app/share/invite/TVjeV58CqN

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If you want your layout to be evaluated for power reversals and solutions suggested, then upload a sketched plan of your layout (be sure to clearly indicate what are points and what are diamond crossings). If there is a diamond crossing then specify the track brand and product code number of it.

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To upload a sketch plan image, you must use the 'image uploader'. TIP 8 in the TIPs page below explains.

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TIP: As a newbie poster on the forum, just be aware that the 'Blue Button with the White Arrow' is not a 'Reply to this post' button. If you want to reply to any of the posts, scroll down and write your reply in the reply text box at the bottom of the page and click the Green 'Reply' button.

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See also – further TIPs on how to get the best user experience from this forum.

https://www.hornby.com/uk-en/forum/tips-on-using-the-forum/

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[Flashbang]

A basic figure of 8 does not reverse rail polarity.   Its not a reverse loop either.  Think of it as the outside (rail) of the 8 at the bottom becomes the inside rail in the upper part of the 8, but returns to the outside again as it comes back towards the lower beginning.

 

A loss of power to half the layout on a simple figure of 8 would indicate to me possibly a loose rail joiner (fishplate) somewhere or possibly if a Hornby diamond crossing is being used then perhaps a broken link wire under the diamond crossing?

 

If you're not meaning a figure of 8, then its something else!  Is it a loss of power to only one part of the layout  or a short circuit?

[Chrissaf]

Note to all

Pedro subsequently raised a new thread for this question containing a sketch. The post was then held back for approval and finally approved and published today [sat 2nd May].

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His issue is not a simple Fig of 8, it is far more complicated than that.

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The continuation of this issue can be viewed here:

https://www.hornby.com/uk-en/forum/weavers-complicated-dcc-reverse-loop-issue-help-needed

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[Flashbang]

This question is a typical how not to ask a question without more detail!  When asking a question always provide as much as possible information, including if need be, any track plans and where rail feeds are connected.   

 

Hornby, why are you holding back images??  Are your moderators not working at full tilt?  There is no reason for hold images at all.

 

A figure of 8 is just that.    Two separate Y connections connecting across to a loop is typically not a typical figure of 8!

 

So please, please whenever possible always provide a drawing or images of your track plan. No one is able to visualise what anyone has designed without such!

[96RAF]

Moderators cannot authorise images. These are done only by an Admin within Hornby Towers.