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Signal Irregularity on P515

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Signal Irregularity on P515 26/03/2010 at 12:28 #989
lnwrelectric
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26 posts
P515(B) correctly showing Y with Pos 4 route and with P517 flashing Y and PB519 flashing YY reverts to red when T635 or T633 occupied and then becomes approach released. Recomend route not set to Down Grahamston until train passes P517 to avoid COA until technicians resolve problem.
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Signal Irregularity on P515 26/03/2010 at 12:28 #7842
lnwrelectric
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26 posts
P515(B) correctly showing Y with Pos 4 route and with P517 flashing Y and PB519 flashing YY reverts to red when T635 or T633 occupied and then becomes approach released. Recomend route not set to Down Grahamston until train passes P517 to avoid COA until technicians resolve problem.
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Signal Irregularity on P515 26/03/2010 at 12:47 #7843
andyb0607
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260 posts
Hi

Thanks for the post. However, this is a known issue.

If you want to check out the known issues there is a thread at the top of the Central Scotland forum.

Thanks

Andy

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Signal Irregularity on P515 27/03/2010 at 14:21 #7881
UKTrainMan
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1803 posts
My solution for this is to wait until Signal PB519 returns to red before setting the diverging route onwards from Polmont, doing this hasn't caused any subsequent Adverse Change of Aspect for me so far. In-fact what I now do is collar the Emergency Replacement button for PB519 to remind me that is the passing point.

An alternative might be to collar ("Isolate"Track Circuit T635 as a reminder to wait until that TC shows as occupied.

Or you could of course just use a sticky - although they can easily be overlooked by mistake.

Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for.
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