Motion D's on VAUX

[wojeda]

Hello,
I have three Bosch BlueLine motion detectors hooked up the the VAUX of the M1 all working wonderfully but, I have the need for at least 6 more. Where do I get the power for these? Can I double up on the VAUX or do I need some kind of expansion board? What are people doing out there under these circumstances?

Thanks.

 

[mustangcoupe]

depending on the total current draw of the blueline's and what else you are using on the system Yes you may need an external powersupply and distribution board.

 

[wojeda]

Thanks mustangcoupe. If I do need a power expansion, do you know if ELK makes a board for this? or do I need to make my own?

 

[Sandpiper]

I am not sure which blueline detector you are using, but the blueline tritech uses 10 ma of current. So nine would use a total of 90 ma. The M1 can supply 1250 ma. Keypads typicaly use about 20 ma. Add up you loads. If you are below 1250, then you may not want to add the auxiliary supply. If you add an auxiliary supply, then you also have to consider adding battery backup for that.

It's your choice, I just wanted to make sure you understood.

 

[wojeda]

Yes. You are right. I never thought about in terms of total load. I saw room for three in VAUX so I fill them up and said, I'm done!
But they do indeed draw 10ma in standby and 18ma in alarm mode, so technically I can put a few more there I guess.

Thanks a lot!

 

[Del91574]

I recommend that the aux draw to be figured in the worst possible scenario, keypads in alarm, devices in active state and relays on, especially those on expansion boards, since those are current pigs. Keypads draw 40-50 mA idle and go up to 160 mA in alarm.

I've read a couple of posts where people aren't figuring these loads into the total draw on the panel.

 

[mustangcoupe]

Very important bit of info. I did not know keypads went to 160ma during alarm. And that is the most important time not to over current

 

[wojeda]

Got it. Thanks again.

Very important bit of info. I did not know keypads went to 160ma during alarm. And that is the most important time not to over current

 

[tmbrown97]

A lot goes on when your panel is in full alarm... for that reason, you need to test your panel in full alarm to make sure you're within the voltage specs.

What I like to do is, during installation, get everything set but the external sirens... ideally if those aren't mounted yet, you can hook them up inside the house and wrap them in a towel - then trigger your alarm and walk around like a thief - and watch voltages. Adjust as necessary.

The last thing you want is an alarm overloading and powering off because someone broke in and too much is going on.

 

[video321]

I recommend that the aux draw to be figured in the worst possible scenario, keypads in alarm, devices in active state and relays on, especially those on expansion boards, since those are current pigs. Keypads draw 40-50 mA idle and go up to 160 mA in alarm.

I've read a couple of posts where people aren't figuring these loads into the total draw on the panel.

Very true...but as a note my KP2 is listed as 85mA in alarm mode and my KPAS is 44mA.