X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf21aec.mail.bellsouth.net ([205.152.59.69] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 986687 for flyrotary@lancaironline.net; Mon, 06 Jun 2005 18:13:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.69; envelope-from=13brv3@bellsouth.net Received: from ibm63aec.bellsouth.net ([65.6.194.9]) by imf21aec.mail.bellsouth.net with ESMTP id <20050606221230.WSB29934.imf21aec.mail.bellsouth.net@ibm63aec.bellsouth.net> for ; Mon, 6 Jun 2005 18:12:30 -0400 Received: from rd ([65.6.194.9]) by ibm63aec.bellsouth.net with ESMTP id <20050606221229.EKEB25209.ibm63aec.bellsouth.net@rd> for ; Mon, 6 Jun 2005 18:12:29 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EC2 dual power feeds Date: Mon, 6 Jun 2005 17:12:30 -0500 Message-ID: <000001c56ae4$d5269350$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C56ABA.EC508B50" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C56ABA.EC508B50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Finally got around to seeing what it would take to retrofit separate = power feeds to the two controllers. It can be done but obviously it was not = high on my list of concerns. But, if this is bothering any builders, I can = do this rework for a cost of $110.00 + shipping. =20 =20 Hi Tracy, =20 I wasn't trying to guilt you into this, particularly since it's been so ineffective with the datalogging request :-) =20 =20 So with this mod, would pins 33 and 34 be split internally, so that one = goes to A, and the other to B? =20 =20 How much other circuitry is shared? Obviously, all the control panel functions have to be shared, so would that be powered by both = controllers, or just one or the other? If the control panel lost power, would the controller just continue with it's last known settings? =20 =20 I presume there's some switching inside for all the various wires that = are used by the EC-2 for input and output functions. What would power that circuitry? =20 =20 I'm sure there are factors that I haven't even thought of, which make = this dual power feed a can of worms. In my post, I really wasn't picking on = the EC-2, but rather saying that I agreed it was probably as good as it can = get in one unit. If you don't think the dual power feed adds significantly = to the safety of the unit, then I'm going to say that's good enough for me. = =20 =20 I've actually thought of using two MicroTech controllers, but haven't = been able to figure out exactly how you'd make the switch between the two. = At some point, there has to be something common between the two, even if = it's the switching circuitry to chose one or the other. Best I've been able = to come up with was to mount the boxes in reach, and then physically swap = the main cable if you need to switch controller. Clearly, that would suck = in a crisis :-) =20 Thanks very much for the offer to make this mod. Depending on the = answer to some of the above, I'll decide if it will ease my mind any. =20 =20 Cheers, Rusty (trying to remember if I actually ran two wires to the connector) = =20 =20 =20 ------=_NextPart_000_0001_01C56ABA.EC508B50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Finally got = around to=20 seeing what it would take to retrofit separate power feeds to the = two=20 controllers.  It can be done but obviously it was not high on my = list of=20 concerns.   But, if this is bothering any builders, I can do = this=20 rework for a cost of $110.00 + shipping.   
 
Hi=20 Tracy,
 
I wasn't trying to = guilt you=20 into this, particularly since it's been so ineffective with = the=20 datalogging request :-)   =
 
So with this mod, would = pins 33 and=20 34 be split internally, so that one goes to A, and the = other to=20 B?  
 
How much other circuitry is shared?  = Obviously,=20 all the control panel functions have to be shared, so would = that be=20 powered by both controllers, or just one or the other?  = If the=20 control panel lost power, would the controller just continue with = it's last=20 known settings?  
 
I presume there's some switching inside for = all the=20 various wires that are used by the EC-2 for input and output=20 functions.  What would power that=20 circuitry?  
 
I'm sure there are factors that I = haven't even=20 thought of, which make this dual power feed a can of = worms.  In=20 my post, I really wasn't picking on the EC-2, but rather saying that I = agreed it=20 was probably as good as it can get in one unit.   If you = don't=20 think the dual power feed adds significantly to = the safety of the=20 unit, then I'm going to say that's good enough for me. =20
 
I've actually thought of using two MicroTech=20 controllers, but haven't been able to figure out exactly how you'd make = the=20 switch between the two.  At some point, there has to be something = common=20 between the two, even if it's the switching circuitry to chose one = or the=20 other.  Best I've been able to come up with was to mount the = boxes in=20 reach, and then physically swap the main cable if you need to = switch=20 controller.  Clearly, that would suck in a crisis=20  :-)
 
Thanks very much for the offer to make this = mod. =20 Depending on the answer to some of the above, I'll decide if it will = ease my=20 mind any.  
 
Cheers,
Rusty (trying to remember if I actually ran = two wires=20 to the connector)   
=
 
 
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