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Old 03-13-2008, 02:54 AM
ao.frog ao.frog is offline
 
Join Date: Sep 2006
Location: Manstad, Norway
Posts: 866
Default P-mag wiring with Vans DC Load center and the ACS key-switch

Hi.

I'm installing dual P-mags on my Superior IO-360.
I'm also installing Vans DC load center EXP-2V and the ACS A-510-2 ignition switch (key-switch)

The P-mag wiring diagram says to connect pin 5 (+13,8 v dc) to the main bus via a switch and breaker.
I've installed two separate switches/breakers for this purpose, but here's the question:

Since I don't have a separate main bus, where schould I connect the wire from pin 5?
(I assume wire 5 is the primary power source for the P-mags?)

So far, my thoughts are to connect pin 5 to a pin on the EXP-2 panel which is always powered, for example the "clearance delivery pin".

Or maybe I schould wire pin 5 to the shunt or the battery? That way, the P-mags will be completely independent of the EXP-2 panel. And they are protected via the separate switches/breakers.

Second question:
Is it correct that the wires from the key switch to the magnetoes are the two shown on the P-mag diagram? (P-lead = "kill switch)

Or am I completely confused here??

In short: how schould I wire up the P-mags with Vans EXP-2 panel and the ACS igntion key switch?
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Regards Alf Olav Frog / Norway
First RV-7 completed, (bought partly finished from a US-builder) 305 hrs per July 2014, SOLD
Second -7 had first flight Feb 25th 2014. 220 hrs pr July 2019. Life is good!

Last edited by ao.frog : 03-13-2008 at 07:14 AM. Reason: spelling mistake
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  #2  
Old 03-13-2008, 05:58 AM
jclark jclark is offline
 
Join Date: Jan 2005
Location: Columbia, SC
Posts: 804
Default I don't have P-Mags but ....

I used the DC Load Center (Exp-Bus) and a key switch along with a Jeff Rose Electronic Ignition.

I do not have the drawings before me now and the work was done over seven years ago but I wired power to the Electronic Ignition via a SEPARATE/DEDICATED switch (fused). That toggle switch is just to the left of the Key Switch which I think that I wired per the instructions.

The main point here is that I chose to have ignition be INDEPENDENT of everything else electrical. That way if the Load Center went up in smoke, I still had electrons going to the engine for firing a set of plugs.

By the way, our RV6 tip-up DID leak and I DID get water into the Load Center once. I think I had to shut it off and fly home on the wing of a friend.

James
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  #3  
Old 03-13-2008, 10:06 AM
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Bob Brown Bob Brown is offline
 
Join Date: Dec 2005
Location: Somewhere in a motorhome
Posts: 581
Default always hot

Although I am not using the DC Load center, I wired my ignitions to the battery bus, so they're always hot when the breakers are switched on. I think the logic that you don't want to depend on a DC Load center or anything else keeps a critical circuit dead simple.
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