I'm trying to wire up some Ross switches for anti-derailing. I think I have the wires right, but when I actvate the switch though the AIU, it flutters from one side to the other. Any suggestions?
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It sounds like the rails that are wired for non derailing are not isolated. Can you post a picture of the switch?
JimJ, I tried to widen the gaps a little. Let's hope the picture helps.
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It’s hard to tell from the picture. Are the isolated rails really isolated from the track leading into the switch?
I guess I'll have to put a piece of plastic there to make sure.
Both ends of the rail need to be isolated. I am asking about the other end that is not in the picture. See the picture below. You can can isolate the rails on the switch or the rails leading into the switch like you see in the picture
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jim,
Both ends of the rail need to be isolated.
Both ends appear to be isolated, one end due to the plastic "Y" and the other by the cut.
Regardless, the wires to control the auto non-derailing operation need to have one end soldered to the short isolated segment of rail and the other connected to terminals on the (DZ1000) switch motor.
Tanner111 posted:Both ends of the rail need to be isolated. I am asking about the other end that is not in the picture. See the picture below. You can can isolate the rails on the switch or the rails leading into the switch like you see in the picture
Without seeing the actual wiring I think you are correct.
There is only one thing that will cause this: check continuity - one end your anti-derail rail (R or L) in BobbyD's post and your common rail. One or both ends of the common rail will show continuity. Do this with the power OFF. If you get continuity, take a small screwdriver and pry the rails apart.
bruce
Thanks for all the help. I wound up making a second cut further from the frog, and at least the switch doesn't flutter. Now to tackle the anti-derailing part. In the meantime, I have some Atlas uncoupling tracks on order. I hope to run them through the AIU, but don't know if I can do that.
Ross switches that are prewired have jumpers on the bottom of the switch. You have to consider the jumpers when isolating the rail.
Steve,
Ross switches that are prewired have jumpers on the bottom of the switch. You have to consider the jumpers when isolating the rail.
That's correct, however, the only rails to consider are the switch track's center rails, since they're the only ones that are jumpered.
