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Old 04-16-2018, 12:57 PM
Gizmos Gizmos is offline
Join Date: Apr 2015
Location: Burbank
Posts: 96
Default Wiring gmc307 with vpx sport and shutoff switch

I would like to wire my gmc307 to a switch with light to indicate a/p is on and be able to disconnect a/p and servos at one time. I am using the vpx sport, i have my servos wired to the j-1 on vpx and the gmc 307 to j-12. Is this a bad ideal?
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Old 04-19-2018, 04:27 PM
joe_rainbolt's Avatar
joe_rainbolt joe_rainbolt is offline
Join Date: Jul 2005
Location: Northern California
Posts: 80

Hi Gizmos,
The GMC307 will light up whichever A/P mode is active and you will see the current and next A/P mode displayed on the PFD so you really don't need a separate indicator light to signal that the A/P system is powered.

There are a couple of different ways to disconnect the A/P without de-powering it. You can wire a signal to a discrete input for A/P disconnect, or you can just tap one of the trim switches (this mode assumes you are running the trim through the A/P servos).

I wired the power to the A/P servos through a panel switch just as you are suggesting, but I have never had occasion to use that switch. It's on when I start up and it stays on whether I use the A/P or not.

Your mileage may vary.
Joe Rainbolt
RV-7A slow build complete 4 July 2016

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