LGB reverse loop module

duncan1_9_8_4

duncan1_9_8_4

Jack of all trades on the Railway
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Does any one have a wiring diagram for this to be used with the LGB isolated track sections 1015T and how these should be positioned? Thanks
 
Duncan,

I think that this link will help:

http://track2.com/info/lgb-reverse-loop/LGBReverse.pdf

For the record the 'K' rail is the one with the diodes and the T rail is a standard double isolating section.

If you get muddled up with which way round your K rail should go, there is a very helpful arrow on the cover of the 1015K. It is the same with the original 30cm long 1000KW too.

The current set was originally sold as 1015K, but now the catalogue number 10151 is used, but I think the covers still show the number 1015k on the diode rail?

This link also shows you how you can automate the polarity switching when the whole train is between the T and the K rails, so you don't have to stop and reverse it manually!

James
 
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Right chaps. I have it wired up and it has been working fantastic.But now all of a sudden... the module itself constantly clicks like a car indicator and any locos either stop or go slow. Resetting the power supply stops the clicking. But as soon as power is used to move a loco it starts again and the loco goes slow or stops. This is with all locos. It was however absolutely fine! Any ideas?
 
Sorry Duncan,

Never heard of one doing that.

As you can see by the diagram it is just a bridge rectifier made up of four diodes.

I would suggest that you take the cover off to see if there is anything obvious wrong inside. Favourite has to be a dry joint, (give the joints a prod and poke - possibly with power on the input side and a test lamp connected to the output side). A root around should show up anything obvious, but I guess a diode could fail? Something new to me though!

Good luck,
James
 
Just had a hour of it working again and now it's doing the same again. Only thing I did was poke a few fish plates on the main circuit but I can't prove if it was the cause. It's a cs3 I use to control it and the points fontcwotk when the loop module is clicking either.
 
If the points don't work, and the module is clicking..

Could this be relay dropping out? - Is the CS3 not liking the short when the unit fires, but only sometimes, perhaps?

Can you adjust the time the CS3 takes to react to a short, and/or the current it trips at? - I wonder if something is just on the edge of a detection limit, so doesn't happen every time??
 
Hm ine has to wonder about the Reverse Loop Module, how old is it and can anyone say how compatible it is with CS3. My mate has a Triangle on his CD2/3 set up witha Massoth Reverse Loop moduke that works just fine. If the LGB one is a Non "P" one it coule be a problem.
JonD
 
Thing is it clicks away when no train is even using the turning circle.... Could it be poor joints? Though all was OK before I put this in. Could a faulty point decoder cause it, though I would say not as I disconnected it and it still did it. How much track can the CS3 power, could that be an issue? Eve with the Loop Module unplugged the points still don't work. I'm lost.
 
None P one.....?
 
Guys,

I have to confess to being confused now - I thought we are talking about the 10151/1015k Analogue reverse loop module?

After other comments made I am now wondering if you are using DCC - if you are I will respectfully bow out and return to my cave and carry on trying to discover fire and invent the wheel......

If it is an analogue unit the age should not be an issue I have a 1000kw set dating from 1978 and and 1015k from the late 80s that both still work 100%.

James
 
Lightbulb moment? Can you even use the Analogue Unit with a DCC setup, though it has clearly worked a bit. Very confused.
JonD
 
Sorry it is DCC using CS3 to power everything. The clicking coming from 55080. Alongside irratic trains and points not working. CS3 issue?
 
I'm going to try and explain what is happening after rambling yesterday. When switching the railway on, the CS3 will move trains, usually. When switching the railway on, the points will work for maybe 2 or 3 throws. Then nothing. At this point the locos become very slow or not run at all. All this while the Return Loop Module is clicking away constantly with no train even using it or near it. So taking the above scenario, I reset the CS3. It powers back up. The module clicking away again. The loco been very slow and irrational. No control over points. Reset a few more times and always the same. Though the points might or might not work a few times and the loco usually as above. Occasionally normal. Until the points are pressed to change. Which they don't. Then the loco either stops or goes slow and iratic. All this while the Loop Module clicks away. So. I have took the module off every wire so in effect it is not part of the circuit. Obviously the clicking has stopped now but all the other problem persist with the CS3. Locos. And points. It is as though the CS3 is not talking to anything or giving enough power to do stuff. Just briefly I managed to run a train and change points at the same time..... Then the loco stopped and then the points stopped working. And as I write this... The loco still won't move and the points are not working. All this alongside the module clicking. It all appears to have started when I split the track on the main circuit to fit the new junction and the return Loop of about which is about 30 ft long. Since complete the circuit nothing has been right. I thought it may be down to dodgy fish plates but even with the loco over where the power connect to the track. It still won't move. As an aside..... If I bring a loco inside and run two wires from CS3 to loco wheels... The loco runs perfectly.... Indicating an issue with the circuit or ability of the CS3 to power it since changing the circuit. The fish plates must be OK..... Because sometimes the train runs fine until points are used etc. Just once last night I reset it and everything was fine for maybe half hour... Then all of a sudden the loco stopped. The clicking started and the points would not work.
I am seriously lost and a bit worried given how much I have recently invested in the railway. Especially because it was fine with the small 30ft original circuit.
 
I forgot to say. I have now un wired the point decoder and the circuit runs fine with no point module decoder wired up and no reverse loop module. If I put the point decoder back on the same issues persist. If I put the Loop Module back on the same clicking happens and all the for mentioned issues. Paul
 
Under the center cover of the 1015K, you will find four diodes on a circuit board. These diodes ensure that the track polarity between the 1015T and 1015K is always the same, no matter what the polarity is outside the T/K section.

Which would work exactly as it should under DC, DCC is a completely different scenario, best guess is that the four diodes are probably working as a half or full wave bridge rectifier and are converting the voltage part of the DCC signal to DC.
 
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Glad that it is all sorted out now.

As I said, there was no mention of DCC originally, hence the confusion. If I had seen DCC mentioned I would have run for the hills!

Off to hunt Buffalo and do some more cave painting now!

James
 
Does this setup work?

loop.png


Power requirements, the CS3 is "lightweight" in this, for instance a PIKO unit running at 22v certainly struggles from time to time, the CS3 has a starting point of just 19 volts!

So by the time the voltage has been reduced to power the CS3, plus any mobile or static decoders in use, track power will be borderline around 16 volts, hence any other equipment in use are fighting for the remaining voltage, just not enough juice to go around................hence the chattering from the relay in the 55080.

The loop may well be "the straw that broke the camels back", from your post looks like you'll probably will require a "booster" to power the loop.

Somewhere buried in the Technical Specifications it states a minimum recommended cable size for power cables to the rails to help reduce voltage drops, resistance etc....etc....
 
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dunnyrail said:
Lightbulb moment? Can you even use the Analogue Unit with a DCC setup, though it has clearly worked a bit. Very confused.
JonD
Click to expand...
Dunnyrail i have just found a video on YouTube of a triangle you did using the 55080. I notice all wires from it go to one isolated track section. All the diagrams I have been given go to both sections........ (of isolated track sections).???
 
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