Latching trouble output for PC5010

Looks like the PGM 09 System Trouble output on the PC5010 is
non-latching (unlike PGM 10 System Event which *is* latched).

Can someone recommend a simple 12VDC solution to latch PGM 09
until reset? Latching relays typically use a second coil to
unlatch (which has to be energized), but I'd like to use PGM 03
(currently used for latching fire alarms) to reset the PGM 09
latch and that means I'd want to reset when the voltage is
*dropped*, which is not what most latching relays want.

There's probably a way to do this so trivial I can't see it.

Suggestions?

--ian

 

Did you try the latching strobe option? That should latch until reset.

Jim Rojas

 

Not sure what you mean. What "latching strobe option"? The word
"strobe" only occurs in the PC5010 installation manual in reference
to strobe lights, and for PGM 10, Latched System Event. I want to
latch PGM 09, System Trouble.

--ian

 

connect the pgm (09) to a 24 hr zone and then use another pgm for (10).

 

hi, thanks for answering.....

no, that's what i had i mind, a self-latching relay, i'm just having
trouble with the specifics. ancientness....... d'oh!

don't i need a relay with two input coils?

yes, two output poles: one for the light, the other to keep the coil
energized (through resettable power source PGM 03).

but a normal relay has only a single input coil, which i would be wiring
to one of the programmable outputs (set to 09, system trouble).

how could you connect the second pole to the same input coil? you'd be
applying 12VDC to the PC5010 output when the relay latched then, no?

seems like two input coils and two poles would be perfect, but i could
not find such a beast. much gnashing of indexes was there.

thanks again...

--ian

 

....*without* using up a zone?

 

Ian Macky wrote

Here's a diagram of how to make a dpdt relay latch:
http://www.altronix.com/p_pdf/RBST.pdf
js

 

Altronics 6062 timer relay can be used to latch and reset by disconnecting
power.

 

Sorry that should read "Altronix". If that relay doesn't work then I am sure
they have one that will.
http://www.altronix.com/

 

Hi...

I looked, but could not find. "one of the pages" was not much of a hint.
There are > 100 pages with keyword "relays", and neither of the references
to "latching" was it.

There's no such group as alt.binaries, just various sub-groups. So, not
sure what you mean. Is this JPG on your site? Can you post the URL to it?

Thanks much....

--ian

 

ah, i finally found someplace that carried it. seems pretty obscure,
not even google indexes it.

thanks much. what i was missing was the magic of the diode.........

--ian