X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 30 Apr 2012 05:58:42 -0400 Message-ID: X-Original-Return-Path: Received: from imr-da05.mx.aol.com ([205.188.105.147] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5514661 for lml@lancaironline.net; Sun, 29 Apr 2012 18:06:05 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.147; envelope-from=Sky2high@aol.com Received: from mtaomg-db04.r1000.mx.aol.com (mtaomg-db04.r1000.mx.aol.com [172.29.51.202]) by imr-da05.mx.aol.com (8.14.1/8.14.1) with ESMTP id q3TM5PLF008024 for ; Sun, 29 Apr 2012 18:05:25 -0400 Received: from core-mtc004b.r1000.mail.aol.com (core-mtc004.r1000.mail.aol.com [172.29.235.13]) by mtaomg-db04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 545A0E00008C for ; Sun, 29 Apr 2012 18:05:25 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Sun, 29 Apr 2012 18:05:25 -0400 (EDT) Subject: Re: [LML] Re: Contactors vs Solid State Relays X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_bbd1.e5cb7f4.3ccf1525_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:435603456:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d33ca4f9dbb257c7e --part1_bbd1.e5cb7f4.3ccf1525_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Fred, Thanks, as I always wait to see who picks up the other possible failure. I did say '"indication" circuit' only since I wouldn't dare to presume to design such as we are all experimenters. For years I have been harping on the same problem with the 200/320/360/?? hydro pump power relay "indication" terminal that is fed from the pump motor power contactor and that circuit is "protected" by a 50 or 60 amp breaker whilst the wire to the panel indicator light might be a mere 22 gauge. See if that can carry 50 amps if it shorts (do not yell "FIRE!" in a crowded cockpit)..... The Legacy plans wisely call for a wee diode on each "I" to the "gear in transit" light to not only isolate each relay, but have it burn up before the fire starts elsewhere. BTW, the "I" line from my pump is protected by an inline fuse (uh, 1 or 2 amps if I remember correctly) as is the "starter engaged" circuit. I love this stuff............. Grayhawk PS I am considering wiring all of my "idiot" alerts (including "angle, angle, push") to a high voltage coil attached to my leg so it tingles. I am getting too used to red lights and female nagging...................... Don't worry, there will be proper breaker limits. In a message dated 4/29/2012 12:19:02 P.M. Central Daylight Time, frederickmoreno@bigpond.com writes: A most helpful idea is to have an "indication" circuit off the solenoid contacts to an indicator light on the panel. If the indicator light is on after starting, turn off the master switch and the engine........................ That is a valuable idea to let you know the starter is still engaged when you let go of the switch. However, since that wire that sends the signal is probably 22 Ga (5 amps) and the starter cables are capable of handling hundreds of amps, best to put a little blade fuse assembly in the small signal line so that if it were to short..... Think heat, smoke, and worse. Fred --part1_bbd1.e5cb7f4.3ccf1525_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Fred,
 
Thanks, as I always wait to see who picks up the other= =20 possible failure.  I did say '"indication" circuit= '=20 only since I wouldn't dare to presume to design such as we are all=20 experimenters.  For years I have been harping on the same problem with= the=20 200/320/360/?? hydro pump power relay "indication" terminal that is fed fro= m the=20 pump motor power contactor and that circuit is "protected" b= y a=20 50 or 60 amp breaker whilst the wire to the panel indicator light might be = a=20 mere 22 gauge.  See if that can carry 50 amps if it shorts (do not=20 yell "FIRE!" in a crowded cockpit)..... The Legacy plans wisely call f= or a=20 wee diode on each "I" to the "gear in transit" light to not only isolate ea= ch=20 relay, but have it burn up before the fire starts elsewhere.
 
BTW, the "I" line from my pump is protected by an inline fus= e=20 (uh, 1 or 2 amps if I remember correctly) as is the "starter engaged"=20 circuit.
 
I love this stuff.............
 
Grayhawk
 
PS I am considering wiring all of my "idiot" alerts (including "angle,= =20 angle, push") to a high voltage coil attached to my leg so it tingles. = ; I=20 am getting too used to red lights and female nagging..................= ....=20 Don't worry, there will be proper breaker limits.
 
In a message dated 4/29/2012 12:19:02 P.M. Central Daylight Time,=20 frederickmoreno@bigpond.com writes:
=
 
 A most helpf= ul idea is=20 to have an "indication" circuit off the solenoid contacts to an=20 indicator light on the panel.   If the indicator light is= on=20 after starting, turn off the master switch and the=20 engine........................
 
That is a valuable idea to let you know the starter is still= =20 engaged when you let go of the switch.  However, since th= at=20 wire that  sends the signal is probably 22 Ga (5 amps) and the= =20 starter cables are capable of handling hundreds of amps, best to pu= t a=20 little blade fuse assembly in the small signal line so that if it w= ere=20 to short.....   Think heat, smoke, and worse.
 
Fred
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