|
Don, it came back to me through the reflector with the pdf
attachment. Could your email program have stripped it? From:
ttat-members-owner@aoot.com [mailto:ttat-members-owner@aoot.com] On Behalf
Of don448@aol.com Mike, I want to thank you right away for your
info before I get into the work and forget. As to the 1122 signal.
The signal will continue to try to switch until it succceeds as the wheels roll
over it preventing closure. Whether it is a steady signal or a series of
pulses, I don't know. If you use the controller, there is one long buzz
untill switching is complete. With this wiring setup, I don't know.
Now on to the work----------- Regards, Don -----Original Message----- Don, See the attached drawing. You would need a relay to do what
you are trying to do. The relay delaying the switching of the 2nd
switch until the train has cleared it. Be sure to see the 2nd
page for a description and drawing of an NC relay. The only caveat I see is that I don’t know if an 1122 only sends a
switch signal for an instant, or whether it continuously tries to switch when a
train is running over it. This will work if it sends a continuous signal,
but will not is the signal is for only an instant. -Mike |