Re: [DMCForum] Relays & current draw

["Ryan Wright" <ryanpwright@xxxxxxxxx>]

Greg,

> I believe most after market alarms activate and deactivate features based on
> ignition sensing.  I looked over Toby's site and didn't see anything
> specific about this.

Sorry, I should clarify: I don't have Toby's alarm system. I do have
his door releast ("launch") actuators.

> You probably shouldn't ground the alarm itself to the parking brake as that
> would cause it to function intermittently.  Meaning, when you applied the
> brake, and subsequently the ground, the alarm will wake up and most react as
> if they have been triggered.

I must have typed something wrong - I never intended to turn the alarm
on and off with the parking brake. It's been installed for 2 years and
is constantly powered (both ground & power direct from the battery)
and will remain that way.

> If the ground through the emergency brake is not good enough for your
> options then you could add a contact switch.  Either way I would talk with
> Toby to make sure any modifications you do don't harm the system(s).

They won't. I'm well versed in the installation of automotive
electronics. All I'm doing is cutting power to three actuators when
the e-brake is released. I just need to figure out how to do it
without constantly drawing power via a relay... I don't see an easy
way to add another switch to the brake. Maybe I can find a relay with
a coil that draws substantially less power...

-Ryan


 
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