Bunkerbarge

Having just spent a hard day working on cleaning a newly laid floor I thought I would have an hours play with the layout before time to feed the dogs.

When I turned the controller on I noticed that my one and only semaphore signal was, for some unknown reason, reversed in its position.  I have no idea why it has changed, it was fine the last time I operated it.  I tried looking for a way to reverse the operation, such as mirroring it etc. but to no avail.  I have tried removing it from the controller and setting it up from new, still no joy, I have tried reversing the feed wires to the signal, still no joy.

I cannot understand why it should have suddenly decided to reverse its operation like this, nor can I work out how to put it back to the correct attitude.

Its times like this when you have completely wasted an hour when all you wanted to do was enjoy a play when you feel like giving up with it.

The controller is an Ecos, the decoder is a Train Tech signal decoder and the signal is a Dapol motorised unit.

Any thoughts or suggestions from anyone would be very much appreciated.


 

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Julian
Interesting...   I didn't realise Dapol signals had hormones  ðŸ˜ 

I note the signal is run from a Train Tech controller, does that have any system for resetting the output / input?  I rather think that would have been part of your setting up from new process.

J
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Bunkerbarge
It just has a set up button for the initial recognition.  It has worked fine for around a year now.  Then one day it decides to reverse its operation!
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Julian
Very strange, particularly for electronics, as for most of the time, if you leave them alone, they perform or just stop.  Have you tried reversing the input to the Train Tech controller?

It may be worth sending them a message, asking if they have any ideas.

J
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Bunkerbarge
I tried a few things Julian.  I disconnected the power to the train Tech then operated the semaphore in the Ecos, I tried changing the cables over and then operated it and even powered off the controller and back on again in every configuration.  Every time the operation returned to the reverse mode.

I've posted one on the ESU forum and I might send one to train tech as well.  Thanks for the idea.
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Julian
I know how logical and thorough you are, so the anomaly is the more unexplained for that.

Maybe Train Tech can provide a little light [couldn't resist that one at this time of night] on the problem.  The Dapol is just wiring, so little possibility of change there, I guess.

J
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Bunkerbarge
Julian wrote:
I know how logical and thorough you are, so the anomaly is the more unexplained for that.

Maybe Train Tech can provide a little light [couldn't resist that one at this time of night] on the problem.  The Dapol is just wiring, so little possibility of change there, I guess.

J


Agreed, Brian suggested I follow the Train Tech original set up process again, which should 'teach' the controller the correct attitude, so I'll have a play with that tomorrow.  

Sounds like being back at school, "Teaching the correct attitude!!"
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Julian
Teaching was never that easy, 26 + years of discovery there...   Not sure I ever discovered the correct attitudes, that was a matter of someone's opinion.  It will be interesting to see what turns out to be the result for the signal.

J
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robertdcc
Hi.  Unfortunately these Dapol signals have a simple 'flip flop' mechanism - you apply power and it changes state from one to the other.  What I found was that if you switch your layout off without resetting all of your signals first or have a short which requires a reset mid operation, the next time you power it on the signals may well be out of step with the switches.  Pretty useless in most circumstances. 

Then one of them stopped working so I ripped out the 'below the ground' mechanism and attached a Cobalt point motor.  It has worked fine ever since, so I've done the same with my other Dapol signals.

EDIT - I've just had a hunt around the internet and there is a long thread on another forum where the DCCConcepts view is that these signals can be made to work fine using DCCConcepts kit to fire them - hopefully someone can include the edited highlights on this thread!  For my part I'm happy with my solution.

Regards

Robert
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Bunkerbarge
Thanks for the idea Robert.  I finally managed to get it back to the correct way around this afternoon but not after a lot of messing around.  What tripped it up in the first place I'm not sure but let's hope it stays correct for a while.

I like the simplicity of the Train Tech unit and one of them can power two semaphores so I am hoping that things might settle when I get more bus connections permanent and secure.
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