Elk Power Supervisory zone

[chrisexv6]

Got my Altronix supply up and running again, I want to connect the supervisory contacts. On the Altronix board are 6 connections, 3 (NO, C, NC) for Low Battery and 3 (NO, C, NC) for AC fail.

Elk manual says to use the Power Supervisory zone type (32), then wire to short on Low Battery and Open on AC Fail.

My question is where does the common (negative) lead into the Altronix contacts come from? I thought it was going to be 2 separate zones for Low Battery and AC Fail, but the Elk manual makes it look like it should be one zone. Right now I have 2 zones wires to the Altronix panel, each as its own NC zone. They are showing as open (because they arent actually connected to the Elk panel yet) but Im not getting any Trouble indicators on the keypads.

Any ideas?

Thanks.

-Chris

 

[jpmargis]

My manual says "open the zone in a Low Battery event and short the zone in an AC Failure event". The common lead of both Altronix Form C contacts is connected to the NEG terminal of one zone. Refer to the figure for traditional three state zone wiring in section 1.4.

And the zone type should be 0 (EOL Supervised) with a zone definition of 32 (Power Supervisory).

 

[chrisexv6]

Thanks.


Maybe Im having brain fart but Im still confused.

If the zone negative is connected to the commons on the Altronix side, that leaves the zone input to connect to...something. If I only connect it to one thing on the Altronix (Batt Low or AC Fail), how does the zone "know" what is triggering?

If I connect it to the NC side of the Batt Low contact, when the Batt Low trips it will show the zone as open so that part would work. But how would AC fail be connected so that it draws down the zone when it trips?

The way the manual shows it, to me it looks like I should have an EOLR between the zone neg and input, an NC from the Altronix connected to the zone neg, and an NO from the Altronix connected to the zone input.

 

[Del91574]

You would cascade the relay connections, NC for AC loss and NO for LB. The EOLR would be wired across the NO/C for the LB connection.

Easiest way I know of is to connect the panel to both C terminals on the relays, EOLR between NO and C on the LB relay, then jumper NO to NC on the AC relay,

 

[chrisexv6]

Thanks DEL (again!)

I figured something had to be jumpered, but couldnt put my finger on exactly what.

 

[chrisexv6]

FWIW this still isnt working and I have no idea why.

Wired as suggested by DEL and the zone is still showing as open (14V). Surprisingly I cant find much more information on the forums or even Google....do that few people actually use and/or supervise external power supplies?

 

[jpmargis]

Try this . . .

Connect both C terminals to Zone Neg at the panel. Jumper them if you like.
Connect the EOLR from the LB NC terminal to the AC NO terminal.
Connect the AC NO terminal to Zone Input at the panel.
Set the zone definition to 32.
Set the zone type to 0.

This is the text version of the traditional three state zone figure in section 1.4.

 

[chrisexv6]

Thanks. Checking the Status on the zone it looks like its now acting as it should.....shorted when AC fail, open when battery fail.

For some reason the rules I have written in ElkRP arent firing. Going to disable them and see if the system handles the AC fail message across the keypads, thats better than nothing.