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Tam Valley Reverse module

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  • Member since
    July 2006
  • 148 posts
Tam Valley Reverse module
Posted by crisco1 on Wednesday, July 8, 2020 11:55 PM

How do you wire a reverse loop using Tam Valley Reverse Module?

My engine shorts out when I run a train over this area.

  • Member since
    November 2002
  • From: US
  • 2,361 posts
Posted by wp8thsub on Thursday, July 9, 2020 6:33 PM

You need to have both the auto-reverser and track reversing section wired correctly, so more information is necessary to diagnose the problem.  The Tam Valley reverser should have come with instructions.  The track should be wired as indicated on the wiring for DCC site or equivalent http://www.wiringfordcc.com/sw_ctl.htm#a16 .

Rob Spangler

  • Member since
    February 2002
  • From: Reading, PA
  • 28,410 posts
Posted by rrinker on Thursday, July 9, 2020 8:28 PM

 If you are using the Dual Frog Juicer as a reverser, you need to make sure the jumper is on to Pair Outputs.

 The rest of it - a layout diagram and an indication of where you have gaps would help.

                                               --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    July 2009
  • From: somerset, nj
  • 3,131 posts
Posted by gregc on Friday, July 10, 2020 9:16 AM

rrinker
 If you are using the Dual Frog Juicer as a reverser, you need to make sure the jumper is on to Pair Outputs.

not pairing the juicers can result in only one rail being reversed.   with both rails at the same polarity, the loco sees no power.

crisco1
My engine shorts out when I run a train over this area.

pairing the frog juicers is not the cause of the shorts.   i'd guess either gaps are missing/closed/not cut all the way thru or the reverser mis-wired.

greg - Philadelphia & Reading / Reading

  • Member since
    February 2002
  • From: Reading, PA
  • 28,410 posts
Posted by rrinker on Friday, July 10, 2020 6:38 PM

 If only one rail changes phase, and there is a metal wheel, or one truck of an all wheel pickup loco across the gaps, there is still a dead short across that gap.

 If you reverse it by using say a screwdriver across the gap while the train is well back, then yes, you will have a train standing on track where both rails are of the same phase, and it will just be dead. But cross the gaps, one side flips and the other doesn't, it's a dead short through the metal part of the truck, or the locos internal wiring - about the worst kind of short you can have, as far as potentially damaging or melting something.

 You have this, if one side flipped:

+++++++++|+++++++++ (this rail, this side of the gap used to be -)

----------------|++++++++

                                          --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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