Raincoat2
Well-Known Member
Hi Johnny, I meant to reply sooner. A switch will route power to the correspond rails depending on how the points are positioned or thrown, either to the main line or the siding or possibly to a second siding.
To do this, power has to be routed or connected to the switch either by it being connected to the main line which is powered or power has to be connected directly to the switch, especially if the switch is insulated/isolated from any powered rails such as a block section. This can be three to six foot section or longer that is insulated from the other adjoining rails and gets it's power from an Atlas controller, as an example, which has three on/off slide switches. Power is routed to the controller from your buss line, the power feeders are connected on one side of the controller and then routed to the block/s to deliver power to them as you desire. A block can be part of the mainline or an actual siding or one section of a run-around. I isolate both rails from any powered rails and connect two wires to each block to deliver power to them as desired.
I have all my switches hot or powered all the time and use the controllers to deliver power to the blocks as I desire or to shut it off. I use a white and green wire to represent the positive and negative and yellow and blue for the feeder wires to keep things consitant. Your buss lines are best run around the edge of the layout that is easy for you to reach and the feeders can be routed to the various blocks. You just have to remember that if your letting the outside rail be the positive rail on one side of the layout it the same when standing over on the other side just as the inside rail is the negative rail. The only time it can get confusing is if you have a reverse loop that ties back into it self. This requires a reversing switch arrangement which Atlas also makes.
I hope I've helped you a bit. If you have any questions feel free to write or call.
David - Up early this morning, are we?! Hey, thank you for the suggestions. I posted a fuller account of the problem on one of the other forums and Iron Horseman replied with what seems to be the solution, but I haven't had time to work on it yet.
Here's a more complete explanation of the problem: I'm running HO scale DC. Not interested in DCC yet. The layout is still in its early stages of track laying and wiring, so at this point there is no complete loop in the layout yet. So far I've been laying some track, then wiring and testing that section before laying a few more sections of track, and doing the same with that. I have several Peco and several Atlas switches on the layout. The problem switch is a Peco electrofrog - it's in the curve closest to you in the photo below. It switches the train to the outside mainline or to the inside trainyard. Remember, the track is not connected in a continuous loop anywhere yet - the lines you see going off to the left and along the back wall do just that - - they go out of the photo, and stop a few feet further out. I have power lines to the track in various places, but they are not all connected - I hook one up at a time via alligator clips just to do test runs. What was happening was the engine would run fine on the outside ("mainline") track, but when I threw that Peco switch to route to the inside track the engine would stop wherever it was on the outside track. Iron Horseman suggested insulating the switch, but I haven't had time to do that yet. I'm familiar with basic electrical stuff, and have been careful to keep the outside rail + and inside rail - on the layout. If insulating the TO is the way to go, I can do that easily; if running power directly to the switch from the buss line is the way to go, I can do that too. Just want to know why the switch was making my engine act that way and how to solve it and avoid that problem in the future.
Thanks for taking the time to explain stuff to this rookie.