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Re: #1122 Switch wiring 027 gauge
The way to do it is to have an insulated rail placed just after the first switch trigger a normally closed relay, which would be open when the train is still on that first switch, but closed as soon as the train passes it.
don448@aol.com wrote:
>
>This is my second reply . I've been thinking along the same lines as
>you as to somehow using an insulated section to prevent the switch from
>throwing. If you could somehow keep the first switch from activating
>until the LAST car passed over the second switch instead of it
>activating on the FIRST car, then the train would be totally through
>the second switch before activation of the first switch. Could you
>move the fibre pins from the switch to further on down the line?
>Regards,
>
>Don
>
>
>
>
>
>
>-----Original Message-----
>From: don448@aol.com
>To: ttat-members@aoot.com
>Sent: Sat, Dec 4, 2010 9:58 am
>Subject: Re: #1122 Switch wiring 027 gauge
>
>
>Mike,
> It's not pretty, but it is accurate.
>
>Don
>
>
>
>
>
>
>-----Original Message-----
>From: Michael Graziano <mgraziano@austin.rr.com>
>To: ttat-members@aoot.com
>Sent: Sat, Dec 4, 2010 9:14 am
>Subject: RE: #1122 Switch wiring 027 gauge
>
>
>
>Don,
>
>You know, now that I think about it, you _may_ be able to accomplish
>this by using an isolated outside rail track section. I would have to
>see the track layout to know. Do you have a photo or a diagram?
>
>-Mike
>
>
>From: ttat-members-owner@aoot.com [mailto:ttat-members-owner@aoot.com]
>On Behalf Of don448@aol.com
>Sent: Saturday, December 04, 2010 9:01 AM
>To: ttat-members@aoot.com
>Subject: Re: #1122 Switch wiring 027 gauge
>
>
>Thanks Mike. I came to the awful conclusion that those were my
>options. I feel good that my analysis was backed up by knowledgeable
>club members. Thanks for the response. Don
>
>
>-----Original Message-----
>From: Michael Graziano <mgraziano@austin.rr.com>
>To: ttat-members@aoot.com
>Sent: Fri, Dec 3, 2010 10:34 pm
>Subject: RE: #1122 Switch wiring 027 gauge
>
>
>Don,
>
>
>
>I understand the issue. The answer is more track between switches, or
>shorter trains. What you are looking for is a delayed switching action
>(waiting until the last car clears). Unfortunately, it doesn’t work
>that way without electronics.
>
>
>
>-Mike
>
>
>
>
>From: ttat-members-owner@aoot.com [mailto:ttat-members-owner@aoot.com]
>On Behalf Of don448@aol.com
>Sent: Friday, December 03, 2010 10:05 PM
>To: ttat-members@aoot.com
>Subject: Re: #1122 Switch wiring 027 gauge
>
>
>
>
>
>Scott,
>
>
>Thanks for the reply. I have to study it further, but if what I think
>you are saying, the two switches are activating simultaneously! My
>system is working that way. That is my problem. The tail end of the
>train is not yet over the second swtch when the first switch activates
>it. The system works great as wired if I have a short train and the
>final car clears the second switch before the first switch activates.
>My problem is with a longer train, then the end of the train is still
>on the switch when it activates. I think my wiring is correct. I'm
>just trying to get it to do something it can't. I was hoping for some
>jumper wire fix that would prevent the switch from activating while
>there was still a car going through it. When the train starts into the
>switch, it is in the correct position, its just that the position is
>changed by the train going through the first switch causing derailment.
>
> Regards,
>
>
>
>
>
>Don
>
>
>
>
>
>-----Original Message-----
>From: scott smiley <sc.smiley@juno.com>
>To: ttat-members@aoot.com
>Sent: Fri, Dec 3, 2010 9:03 pm
>Subject: Re: #1122 Switch wiring 027 gauge
>
>
>When I have done this I used it in a figure 8 set up. What you want to
>happen is for the train entering from one loop to change both switches
>at the same time and then go to the other loop. The as it comes back
>around tot he first switch it auto flips to be correct as it enters and
>switches the other to be the out bound on the other loop. Sounds like
>it should work. Now for how.
>
>
>
>
>
>When wired together, as a train enters one switch it needs to turn the
>second as well and then as it goes over the second there should be no
>switching. Thus no derailment. If the outbound train on the second
>switch is turning the first switch under the train that is the bad
>result you mention. There are only two wires need to do this
>interconnect. these wires need to either connect the same posts on each
>switch or cross the posts. What you need is the second switch
>outbound track let's say the straight leg, to be connected to the first
>switch inside track, the curved leg. One post is connected to each of
>the insulated rails on the switch. So as a train comes into the first
>switch curved track it sets the second switch to straight. AS the
>switch goes out the 2nd switch nothing should happen to the switch and
>the train goes into the outside loop from the straight side. Then as
>the train comes around on the outside loop to the first switch it flips
>and also flips the second switch to the inside loop.
>
>
>
>
>
>It should be a matter of connecting the control posts together. the
>ground, third post is not needed, or can be connected together. This
>should run automatic and not need a switch controller.
>
>
>For what it is worth.
>
>
>Scott
>
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>On Fri, 03 Dec 2010 11:07:17 -0500 don448@aol.com writes:
>
>
>
>I have set up a track layout using a set of 1122 switches that are
>cross-wired to alternate between two loops. As the train passes over
>the master switch it simultaneously resets the slave switch to the
>alternate loop. This works great on the long outside loop and when the
>train length is less than the distance between the two inner loop
>switch points. However, in that the two switches activate
>simultaneously, the slave switch moves to the outside loop as the train
>passes over the master switch while in the inner loop, thus derailing
>the train which is still passing over the slave switch. Is there some
>way to either keep the slave switch from activating while the train is
>still on it? I've tried switching wires around, but it either works as
>it is wired, or not at all. Is there some way to jumper something?
>
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