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wirten
Section Hand
Sweden
70 Posts |
 Posted - 09/27/2011 : 4:52:15 PM
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OK. lets see if this works.
Download Attachment:  Crossing_LED.jpg
68.2 KB |
Anders |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 09/27/2011 : 4:55:29 PM
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Thanks Ed
That sure worked better.
Should I also remove the text after ”img” ’tags’? And in that way get rid of the link that is still on the bottom of my post?
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Anders |
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Ironhand_13
Section Hand
USA
97 Posts |
Posted - 09/27/2011 : 8:02:03 PM
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Not doing what you're doing (but may eventually use a control panel) I found this image. Notice the power always seems to go to the middle connectors on the DPDT switch.
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emccamey
Crew Chief
USA
909 Posts |
Posted - 09/27/2011 : 9:08:31 PM
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quote:
Originally posted by wirten
Thanks Ed
That sure worked better.
Should I also remove the text after ”img” ’tags’? And in that way get rid of the link that is still on the bottom of my post?
Wirten, I'd not even use the link button at all. If you have already - you can remove the link text before posting (or afterwards by editing the posting).
-ed-
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Ironhand_13
Section Hand
USA
97 Posts |
Posted - 10/01/2011 : 05:25:18 AM
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| Wirten , have you gotten your panels lights working? |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/02/2011 : 4:15:29 PM
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Nope!
I switched the resistor to 500 Ohms. But it still don’t work.
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Anders |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/02/2011 : 4:18:13 PM
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@Ironhand_13 Do you have a clue to what I’m doing wrong here?
The math on the resistor was sloppy in the earlier diagram, I admit that.
But I think I’ve got it right now.
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Anders |
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Ironhand_13
Section Hand
USA
97 Posts |
Posted - 10/02/2011 : 7:32:16 PM
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Your schematic shows one light that changes color, but the little drawing on the control panel shows two lights, one for each of the turnouts. Unless I misunderstood, I can only think of two lights showing two switches.
But what I see, and I may be totally wrong as there are alot of wiring diagrams out there, is one of the power wires needs to go to the middle connection on the switch, the other to the track. The line with your resistor maybe should go to one of the end connections on the switch. Look at the last drawing I did on page one here
To be safe I'd go with a 1K restistor instead of 500.
After a little tinkering I came up with this:
The two lights are wired opposite so the power only goes one way, assuming you have a single LED that has two colors based on current flow.
**I'm really not an expert or anything, so hopefullky someone else can chime in on this.** |
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emccamey
Crew Chief
USA
909 Posts |
Posted - 10/02/2011 : 8:53:11 PM
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quote:
Originally posted by wirten
Nope!
I switched the resistor to 500 Ohms. But it still don’t work.
The circuit will only complete when a power draw occurs across the frogs being powered. You have to address the LED indicators separately from the track selection.
Use a 1K ohm resistor for safety - that's not the issue of the circuit.
-ed- |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/03/2011 : 06:21:28 AM
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@Ironhand 13
No I think you misunderstood my schematic. The turnouts have there own toggles and LEDs at the control panel. All I want to do is to switch polarity at the crossing, and showing at the control panel in wich direction the current flows in the crossing. There are only two LEDs (single-colored greens) at the control panel, one for each direction in the crossing.
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Anders |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/03/2011 : 06:27:34 AM
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In order of simplifying everything I tried wiring without LEDs.
See diagram below.
But the Voltagreading was really strange.
At one frog it was 0 V, and at the other it was 14,5 V (!!!).
Throwing the toggle inverted the Voltage.
I don’t get it the Battery eliminator is 12 V.
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Anders |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/03/2011 : 06:30:25 AM
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The diagram didn’t get linked.
So here it is.
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Anders |
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wirten
Section Hand
Sweden
70 Posts |
Posted - 10/03/2011 : 06:32:33 AM
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Third try
data/wirten/201110363156_Crossing_LED_b.jpg /img]
Download Attachment: Crossing_LED_b.jpg
98.93 KB |
Anders |
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Ironhand_13
Section Hand
USA
97 Posts |
Posted - 10/03/2011 : 7:40:44 PM
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| OK I understand what your trying to do. Way beyond anything I've done, but have you looked at how reverse loops are wired/signaled? Those change polarity do they not? |
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jeffjan2001
Engine Wiper
USA
198 Posts |
Posted - 10/06/2011 : 2:38:22 PM
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maybe i'm missing something, but it looks acording to your drawing(s) as if there is no continuity. the feeder to the crossovers frogs have no path to complete a circuit. i'd bet that they light if there is a loco across them? as i see it, the path comes from source (power supply) to DPDT switch, through LED circuit, then to frog... but then to? if a loco is on the crossing (across frog) then the current would flow through loco's circuit to other rail...
<< added later>>
i see that you've dropped the lights, and that is probably prudent at this point. i would add ights based on the switches position, rather polarity of frogs. are you using tortises or some other switch motor system? if so then add ing a momentary switch to that is pretty simple, if mechanical then it can still be done, but takes a bit more "engineering" depending on your chosen method.
pics would help... |
Jeff
Spitton, Bailey & Wyre RR
"We'll get you there even if we have to get out and push!"
http://www.trainweb.org/sbwrr
Loosely Based on the Camas Prairie RR in Northern ID
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Edited by - jeffjan2001 on 10/06/2011 2:44:51 PM |
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Topic |
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Turnout DPDT light
Crossing_LED.jpg
Crossing_LED_b.jpg