LENZ LK200 PDF

LK Automatic Reversing Unit 2The problem with reversing loops:Every user of 2-rail DC knows the 'reversing loop' blues:Including a reversing loop in a 2-rail DC layout leads to a short where thereversing loop ties into the main line. Short circuit whenlocomotive passesFigure 1: Basic Reversing Loop The only way to prevent this short circuit is to insulate both sides of thetrack. A single two-rail gap is not enough, since a passing engine will shortthe rail through the electrical pick-up on both sides of the gap. Therefore,the track has to be gapped on both sides of the reversing loop.

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LK Automatic Reversing Unit 2The problem with reversing loops:Every user of 2-rail DC knows the 'reversing loop' blues:Including a reversing loop in a 2-rail DC layout leads to a short where thereversing loop ties into the main line. Short circuit whenlocomotive passesFigure 1: Basic Reversing Loop The only way to prevent this short circuit is to insulate both sides of thetrack. A single two-rail gap is not enough, since a passing engine will shortthe rail through the electrical pick-up on both sides of the gap.

Therefore,the track has to be gapped on both sides of the reversing loop. Oncegapped, you still must ensure that the rails are not short circuited upon entryor exit of the reverse loop.

Usually, the polarity is selected such that there is no short circuit upon entryinto the loop. While the train is in the loop, the polarity is changed, so thatthere is no short circuit at the exit of the loop.

On conventional layouts, this leads to a problem: Changing the polarity inthe reversing loop will change the direction of the train, since the train'sdirection is dependent on the track polarity. Therefore, the direction also hasto be changed at the power pack, so that the train keeps moving in thesame direction on exit from the loop. On NMRA DCC operated layouts, the direction of the train is independentfrom the polarity on the track, therefore, the polarity of the reversing loopcan be changed without stopping the train or changing it's direction.

LK Automatic Reversing Unit 8Dog boneFigure 8 illustrates the positioning of the reverse-loop areas if the track isshaped like a "dog bone". Figure 8: Reverse -loop areas within a "dog bone"Staging tracks within a reverse loopOnly one train should be located in the reverse-loop area. If you want toassemble staging tracks in a reverse loop area, the reverse-loop areashould be moved before or after this section.

BAFigure 9: Reverse -loop areas before and behind staging tracksin a "dog bone"Advice:Either chose the reverse-loop area to be before A or behind B theladder track of the staging tracks. No tags were found Short-link Link Embed. Share from cover. Share from page:. More magazines by this user. Close Flag as Inappropriate.

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LK200 Electronic Reverse Loop Module - Lenz USA

Including a reversing loop in a 2-rail DC layout leads to a short where the reversing loop ties into the main line. All rights reserved. All other marks are own by their respective owners. How To Order.

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Lenz LK200 Reverse Loop Module 12200

Fill in the rest of your details and you can start bidding. Lenz N, H0 LKAccessories-Reverse Loop module The reverse loop module is developed for simple wiring at loops in the two-rail digital system The module is designed so that a reversing loop can be run through without changing polarity or changing the direction of travel of the locomotive. The LK reversing loop module is only for digital operation and can be continuously charged with 5A The reverse loop module is only is only suitable for all digital DCC systems. The advantage of this reverse loop module is the fact that contacts are no longer required. The switching command is caused by the short circuit on the separation of the anti pooled parts. The current is almost instantly changing the polarity when the train enters the reverse loop.

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Reverse Loop Module

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