DMU mad Posted April 16, 2012 Share Posted April 16, 2012 I run a DCC layout, and have 3 sets of points. when i run an 0-4-0 over the points it stops. i think it might be because there is no electricitity going to the "V" part because its plastic. any help appreciated. Link to comment Share on other sites More sharing options...
trainlover23 Posted April 16, 2012 Share Posted April 16, 2012 Yes that is correct Link to comment Share on other sites More sharing options...
DMU mad Posted April 16, 2012 Author Share Posted April 16, 2012 But how do i resolve it? i need it running perfectly because i am exhibiting my layout soon! Link to comment Share on other sites More sharing options...
idlemarvel Posted April 16, 2012 Share Posted April 16, 2012 Do you have pickups on all 4 wheels? If not that will help. You'll have to trawl the internet for instructions. Is it a Hornby 0-4-0? If so this forum may help you. Link to comment Share on other sites More sharing options...
DMU mad Posted April 16, 2012 Author Share Posted April 16, 2012 it is a hornby 0-4-0 (club loco). my guess is it doesn't have pickups on all 4 wheels. Link to comment Share on other sites More sharing options...
brando Posted April 16, 2012 Share Posted April 16, 2012 Have you fitted electropoint clips to your points? you need to when using DCC. Part No. R8232 Link to comment Share on other sites More sharing options...
Southernman777 Posted April 16, 2012 Share Posted April 16, 2012 Dear DMU Mad,Hi, are the points laid flat? If not a four wheeled loco is likely to loose contact and hence power. Are all the wheels clean and the track top clean? Do all four pick ups work correctly - you can test this by applying power to the wheels directly from your controller output. Is the loco chassis square & flat so all four wheels are in 'contact' with the track? If all the above are OK it may be the point electrical contacts are not working properly - you can test this with a multi-meter or touch light bulb & battery. If the contacts are working OK it will be the loco wheels shorting the circuit as it travels over the turnout 'V'. This will require some different wiring so a short circuit is not created as the metal wheels cross the dead frog 'V'. A simple two way switch will be OK with some isolating sections and there is lots of info about this on previous posts and other sites - but if you get this far just ask again - it's easy to show you than write it down!I hope the above helps you solve this problem. Be systematic and start with the easy issues.Hope your layout & running works fine. Have fun. Regards, Link to comment Share on other sites More sharing options...
Fishmanoz Posted April 16, 2012 Share Posted April 16, 2012 I have a slightly different take on this problem. I have 2 Collector 0-4-0s and 2 mixed freight 0-6-0s. Only one of them works properly over points. The others have intermittent or more persistent problems and for at least two, it depends what side the frog is on whether it plays up. But as far as I can see and test, it's not a pickup problem, rather the chassis is not square and consequently only 3 wheels of one 0-4-0 are on the track. If the only touching wheel on that side goes over a frog, the loco stops.The solution to all these types of problems - Stay Alive decoders in my opinion (only theoretical, haven't tried them so far). A recent post labelled Stay Alive gave this site link - http://www.dccconcepts.com/index_files/DCCconcepts_Locomotive_decoders.htmThese people seems to know what they are talking about. Have a look at their points solution too. They have a similar taketo Southernman777 above. Link to comment Share on other sites More sharing options...
The son of Triangman Posted April 18, 2012 Share Posted April 18, 2012 We have several places over that do them, all the stay alive bit normally is, is a bog standard capacitor placed in the right place to give a short feed of power if the power is interrrupted. Capacitors are peanuts, knowing where to wire them on a normal decoder is more tricky. Link to comment Share on other sites More sharing options...
The son of Triangman Posted April 18, 2012 Share Posted April 18, 2012 Meant to say we have several places over here that do them. Decoders with a capacitor to do stay alive are usually vastly overpriced to the normal decoders and all for a capacitor costing pennies.You could go down the live frog route DMU Mad, a rival maker does live frog pointwork, but beware a lot of older locos made before 1998-1999 won't run well on the rivals track. Link to comment Share on other sites More sharing options...
The son of Triangman Posted April 18, 2012 Share Posted April 18, 2012 De-ioslating clips for Hornby points also help and Hornby supplies them. You could also try using a runner wagon with pickups or coal tender made from an old wagon in the case of the likes of the "caley pug", it would be prototypical and would cure any pickup problem over point frogs. Link to comment Share on other sites More sharing options...
Fishmanoz Posted April 18, 2012 Share Posted April 18, 2012 Actually a capacitor plus a prallel combination of current limiting resistor and diode in series with it. It is connected across the output of the bridge rectifier which is the first thing to follow the red/black pickup wires in the decoder, so needs soldering onto the decoder chip. More info is at http://www.members.optusnet.com.au/mainnorth/alive.htm and the link in my post 3 above (found all of this via this link posted by someone on a separate thread). Link to comment Share on other sites More sharing options...
The son of Triangman Posted April 19, 2012 Share Posted April 19, 2012 yep a few parts that cost pennies for which you pay the earth when buying a stay alive decoder, Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.