Right now I have M1-XOVR and M1RB for 16 additional relays, and I have used up all of them. I use two relays to control the speakers for one room - one left channel and one right channel. I am thinking about getting the Elk-WSV water shutoff valve, so I need another relay. That's why I am looking for ways to use dpdt to free up relays on my M1-XOVR and M1RB.
Lou Apo, let me see if I understand this correctly.
1) Elk M1G main board 12VDC (+VAUX on the main board) => M1RB COM.
2) M1RB NO => splice two wires => 2x Elk 924 T+ (Trigger +)
3) Elk M1G main board 12VDC (+VAUX on the main board) => splice two wires => 2x Elk 924 POS
4) Elk 924 NEG => splice together two wires => one wire to Elk M1G main board NEG.
So basically when I turn on the relay, I switch on a 12VDC trigger. Correct?
Or, I guess I can use output 7 - 16 on J16 to switch the dpdt. The +12V, NEG, and triggers are all there.
The other thing I am thinking about is adding the total load from the sources. I read in the manual Appendix F that the total current draw on +SAUX, +VAUX, +VKP, and connector J16 should not exceed 1 amp. So should I add up all the load from these sources to make sure it stays below 1A? If I power the Elk-WSV from the panel to take advantage of the battery, it draws 500mA nominal already. If I add everything else up I may have exceeded 1A. What can I do?
Edited by Galun, 11 April 2011 - 06:36 PM.