Today's Message Index:
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0. 04:05 AM - What's My Contribution Used For? (Matt Dralle)
1. 07:56 AM - Re: Rotax 912 UL Rectifier wiring (h&jeuropa)
2. 09:02 AM - Re: Rotax 912 UL Rectifier wiring (h&jeuropa)
3. 10:14 AM - Re: Re: Rotax 912 UL Rectifier wiring (Hugh McKay)
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| Subject: | What's My Contribution Used For? |
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| Subject: | Re: Rotax 912 UL Rectifier wiring |
Hugh,
If you want to disconnect the Ducatti per the Lockwood article, here is a simple
way to do that.
Purchase a S8009-1 relay from BandC.aero
Wire the relay into the wire just ahead or after the 30A fuse.
Use the NO and COM contacts.
Connect one coil lead to the COM contact (will always have 12 VDC on it).
Remove the existing BR15 breaker from the C terminal and replace that with a wire
(same size as existing). This will tie C to R and B+.
Re use the existing BR15 to operate the relay. Wire one side to the other coil
lead and the other side to ground.
I've attached a sketch showing all this.
In normal operation the existing light which is connected to C will illuminate
when the relay is closed and the Ducatti is connected to the battery. The lamp
connected to the L terminal will also operate as usual, illuminated when the
Ducatti is not keeping up with demand.
Start your engine with the BR 15 breaker off. Neither light should illuminate.
After start, turn on the breaker. The light attached to C should illuminate
showing the Ducatti is connected to the battery (and hopefully charging). The
other light will illuminate depending on the electrical load and should go out
when the charging system is "keeping up". Note that the charging system doesn't
generate much at idle speed. It really only works well at cruise RPM.
Hope this helps.
Jim Butcher
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485825#485825
Attachments:
http://forums.matronics.com//files/image_4_199.jpg
Message 2
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| Subject: | Re: Rotax 912 UL Rectifier wiring |
Hugh,
After posting the above post, I was thinking, why add complexity. The circuit
from Allegro is in accordance with Rotax requirements and there are lots of Allegro
2000 aircraft flying without problem. Why not just leave the wiring as
is?
If there is a charging issue, lets address that.
Let me know if I can help.
Jim Butcher
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=485827#485827
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| Subject: | Re: Rotax 912 UL Rectifier wiring |
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