fire truck capacitor discharge

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blu_olr

Member - Posts: 4

Joined: December 07, 2005

Location: Canada

Posted: May 10, 2013 at 6:35 PM / IP Logged

Hi guys!

I have a minor issue on a new Spartan ERV Star Series Fire Trucks. Basically the truck uses "v-mux" mutiplexing system to control its I/Os.

Most fire trucks these days, come with a foam system install on their pumps; which injects foam when pumping. The motors used, have a capacitor wired in to help with the buffer/demand. My problem is when the truck shuts off, the capacitor discharge supplies current to nodes which feedback to the markers lights. They evenually go out, but im getting complaints from different departments wanting it all off when the truck is off.

any suggestions?

bLu

oldspark

Gold - Posts: 4,913

Joined: November 03, 2008

Location: Australia

Posted: May 10, 2013 at 6:39 PM / IP Logged

A relay that disconnects when not in use. (Probably before the cap and pump.)

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fire truck capacitor discharge

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