Wiring up LGB EPL point motors

JimmyB

JimmyB

Phase 1 complete, roll on Phase 2
23 Feb 2018
2,088
338
65
Weston-super-Mare
Found this on another thread

135410_d4553397272c4bda51139b67124bbfc9.jpg
 
JimmyB

JimmyB

Phase 1 complete, roll on Phase 2
23 Feb 2018
2,088
338
65
Weston-super-Mare
yes but...
don't use a switch, that stays in contact. only use momentary contacts.
Yep, SPDT centre off momentary. This is not something I am planning in the short term, but just thinking ahead, dependant on what direction my railway takes me.
 
dunnyrail

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
15,378
616
71
St.Neots Cambridgeshire UK
JimmyB

JimmyB

Phase 1 complete, roll on Phase 2
23 Feb 2018
2,088
338
65
Weston-super-Mare
Jon, don't understand, how would it provide an indication, they are diodes not LEDs, also where would i put a push button switch?
 
dunnyrail

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
15,378
616
71
St.Neots Cambridgeshire UK
Jon, don't understand, how would it provide an indication, they are diodes not LEDs, also where would i put a push button switch?
If the Switch were a normal Change Over one that could indicate which way the Switch were facing when Set, the Push Button could be either before or after the Switch to make the Circuit live. At all other times it would be dead beyond the Push Button. One would mount the switches on a Panel that either had a track diagram with the switches mounted so that the direction is obvious or like a Signal Box where the Main is always ‘Normal’ and if you Pull the Switch the other way the route is ‘Reversed’ I.E to the secondary direction. So for instance on your line where if I remember correctly part of the setup the following would be like a Signal Box.

135466_aae0a6d4c23af790c68aacbc1f75026e.jpeg
 
JimmyB

JimmyB

Phase 1 complete, roll on Phase 2
23 Feb 2018
2,088
338
65
Weston-super-Mare
Jon, the switch is a SPDT centre off momentary (none-latching) switch, so my understanding is the switch would return to the centre (off) position.
 
PhilP

PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
24,008
673
Tamworth, Staffs.
Correct Jimmy..

Jon is suggesting you use a latching (two-position) switch to 'set' the route, then the (in series) push-button to 'fire' the point..
You then have an indication of the route from the position of the switch toggle. - As long as you always 'set and fire'.

Does that help?

PhilP.
 
JimmyB

JimmyB

Phase 1 complete, roll on Phase 2
23 Feb 2018
2,088
338
65
Weston-super-Mare
Phil (and Jon) I now understand, however to my simple mind this overly complicates things, and I don't do complicated electrics.
 
dunnyrail

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
15,378
616
71
St.Neots Cambridgeshire UK
Phil (and Jon) I now understand, however to my simple mind this overly complicates things, and I don't do complicated electrics.
Thanks Phil, not overly complex at all but the help that can be given from having a visible view of what Points and Signals are doing is a great help. The logic of it all is inescapable and for a little additional wiring certainly worthwhile, in fact if you are going to use Electric Motors the greatest part of the Wiring will be necessary anyway.
 
korm kormsen

korm kormsen

Registered
24 Oct 2009
2,467
33
Last edited:
korm kormsen

korm kormsen

Registered
24 Oct 2009
2,467
33
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
3,057
235
San Diego
www.elmassian.com
Really? that is weird, do you have a really old computer or something strange? png has been around for a while...

(how did you know it was a png file?)

Per Wikipedia: PNG was published as informational RFC 2083 in March 1997 and as an ISO/IEC standard in 2004

Greg
 
korm kormsen

korm kormsen

Registered
24 Oct 2009
2,467
33
i love this forum!

i went back, to copy the very long numerical .png URL, and what? i saw the pic.
and, yes, the sketch is the same, as mine is.
(but i think, we'll both survive that, won't we?)
 
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
3,057
235
San Diego
www.elmassian.com
I'm more pleased that you don't have any difficulty loading png files.... that is good news.... perhaps it was just randomly very slow loading the first time?

i was racking my computer brain on how png files could be blocked...

good news as i take it.

Greg
 
dunnyrail

dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
15,378
616
71
St.Neots Cambridgeshire UK
then you could do this.

http://kormsen.info/steering/bilder/epl-schaltung.JPG (forum still does not accept pics from my website. only those uploaded to the forum)

View attachment 258157View attachment 258157

as simple as they come.
Yes this is a way to give a simple solution to changing points. But it does not give an indication without looking at the point which was my reason for the Change Over Switch and a Push Button. I have used a similar system to that shown above in smaller scales on Exhibition Layouts and find that Operators tend to overuse the Push Buttons to be sure that the route is set when there is no indicating Switch. Result - shorter life of Point Motors and Push Buttons.
 
Tanker man

Tanker man

G scale and 5 inch ride on
10 Jun 2015
298
51
Oxford
I have experimented with DPDT centre off non locking switches, one side switches the points through diodes, as explained above, the other side switches 'flip-flop' circuits to light LED's. Both circuits work independently ( without power to the other circuit) but when used with 9 Volts on the LEd circuit and 14v ac on the motor circuit, when switching points, occasionally, the LED's. 'Jump about' . I am guessing there is interference on the dc circuit from the ac as the wiring runs in a loom, by necessity.
Unfortunately, I have reached the end of my electronics knowledge to fix the problem and am hoping, one day to meet an 'expert' who will just say " you need to.................." to fix it !
If I can get it working correctly, I have used red and green bright 5mm LED' , which show up well in bright sunlight, the result is that it is easy to set a route and have a visual indication , of that route.
Dave
 
Greg Elmassian

Greg Elmassian

Registered
8 Mar 2014
3,057
235
San Diego
www.elmassian.com
Jon's idea, with the "normal" spdt switch could be combined with a second circuit (like a 5v supply) that was isolated from the AC supply, and I believe you could drive LEDs from the position of the SPDT switch, giving turnout position BOTH from the toggle switch lever position and the LEDs. Maybe even something simpler with a bipolar led.

Greg