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Reply to "Relays for Track Power using AIU"

stan2004 posted:

OK, I misunderstood.  I thought you had 2 FRM01's (one per siding).  To be clear, are those diodes shown in the yellow boxes under the black heat shrink?  And they are oriented with the white or silver stripe/band on the bottom side as illustrated?

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I believe the FRM01 has a power-on LED that lights whenever power is applied...and a different relay-on LED that turns on when the relay clicks on.  I assume that once you turn on the first siding (whether it be siding A or siding B), the FRM01 power-on LED turns on and stays on even after the relay clicks on then off.  Right?  

In other words, the FRM01 is performing the Delay-OFF function once and only once for the first siding.  Then the FRM01 is now on and does not "re-trigger" its Delay-OFF function for the second (third, fourth, etc.) siding.  This is the classic re-trigger conundrum.  As shown in this earlier diagram, if using the FRM01 "Function 02", there is one timer module PER SIDING.  So in your 2 siding test setup, that would be 2 FRM01's set to Function 02.

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Separately, do you have a "stash" of assorted capacitors lying around?  Just thinking ahead for possible work-arounds...

 

 

No, just one FRM01. The original schematic showed just one. And yes, the “relay on” LED remains lit after the first use. 

I’m fairly certain that the diodes are pointed in the correct direction. I can meter them to verify that.

I guessed that I had to have one per siding, so I ordered these....

I am hoping that this is what I need. I was also hoping that there is a function in the FRM01 that would turn off the FRM01 once the program finished running. In other words, I hoped that one FRM01 could service multiple sidings.

No stash of capacitors, but I can always get some.

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