X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qw-out-2122.google.com ([74.125.92.27] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3731511 for flyrotary@lancaironline.net; Wed, 24 Jun 2009 17:17:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.92.27; envelope-from=wdleonard@gmail.com Received: by qw-out-2122.google.com with SMTP id 3so249888qwe.25 for ; Wed, 24 Jun 2009 14:16:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=4PjJURLVa869WNVVdVPiDO6Spj2Lffe9jJNGxIOmMAc=; b=ZNETFgrAUjZaGOwNOdqOHkI7WkFkNF9+Db7K30jmOY/xQtqTyt5um7+3j8HMZ/dQGv 8WjkP+995x5shMNOCuNQC5jlY8rV87TB1nHgvlfKRfEhaE8nJBsaRhj1iHqRZXyJ+JID HDKpEocDnio3mjVpUZBq2ZS0EVdDCZgdOktZA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=d4YAJUjPoDuFlD2KcedQ5LqNrnpqeVL+1rApD3mg/A8gAGgo0UUq9HddVSPxkyUaeC pmwUTJBp50jVEzu8jOCxUdeurwHz0fyROX88klhxFsCKuwkMEYehwcopDMB9k/AMQVL3 hWFBwrjTvjiRuoMF5svaByNJCzz/t7UhlfmQY= MIME-Version: 1.0 Received: by 10.220.93.65 with SMTP id u1mr1951745vcm.59.1245878219005; Wed, 24 Jun 2009 14:16:59 -0700 (PDT) In-Reply-To: References: Date: Wed, 24 Jun 2009 14:16:58 -0700 Message-ID: <1c23473f0906241416n36aa39dbh4a5d173cc593d6a7@mail.gmail.com> Subject: Re: [FlyRotary] Re: Relay Woes From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016364ed386ad5def046d1ea047 --0016364ed386ad5def046d1ea047 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Ooooohh, duh, I guess. Should have gotten the one with "no zero cross function" (sounds like a doubble negative to me). Never heard of that until today. = I guess that's why they don't let doctors design electronics. Thanks a bunch for all the help everyone! (I love this list, all my problems are solved here - can anyone explain my wife?) Dave Leonard On Wed, Jun 24, 2009 at 1:20 PM, Al Gietzen wrote: > Dave; > > > > You=92ll notice on the data sheet for the relay you bought it says =93yes= =94 > under the =93zero cross function=94 =96 Which I=92d take to mean for DC i= t will not > turn off. > > > > Al > > > > -----Original Message----- > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *David Leonard > *Sent:* Wednesday, June 24, 2009 7:34 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Relay Woes > > > > For you EE types, I have a question. I am installing a smoke system and > wanted to use a relay to control the pump. I bought this relay from Mous= er > that I thought would do the trick: > > > http://www.mouser.com/Search/ProductDetail.aspx?qs=3DsGAEpiMZZMtLEhJ5P%2f= NsZ6bnrz6%2f%252b%252bJvA50eSiydqPQ%3d > > The problem is that if there is any load (like the pump or even the 0.02A > indicator LED I installed, then the relay will not turn off when I turn o= ff > the signal voltage. So either I do not understand how to use the relay, = or > I chose the wrong relay. I have checked my wiring in-so-much as to confi= rm > that the signal voltage does turn on and off with the switch, voltage acr= oss > the 'LOAD" terminals does disappear when there is no load but not when th= ere > is a load (current). > > Is it possibly because this relay is designed for an AC load? Other > suggestions? > > -- > David Leonard > > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net > --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net --0016364ed386ad5def046d1ea047 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Ooooohh,=A0
duh, I guess.=A0 Should have gotten the one with "no zero cross f= unction" (sounds like a doubble negative to me).=A0 Never heard of tha= t until today.=A0 I guess that's why they don't let doctors design = electronics.
=A0
Thanks a bunch for all the help everyone!=A0 (I love this list, all my= problems are solved here - can anyone explain my wife?)
=A0
Dave Leonard

On Wed, Jun 24, 2009 at 1:20 PM, Al Gietzen <ALVentures@cox.net<= /a>> wrote:

Dave;

=A0

You=92ll notice on the data she= et for the relay you bought it says =93yes=94 under the =93zero cross funct= ion=94 =96 Which I=92d take to mean for DC it will not turn off.

=A0

Al

=A0

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.= net] On Behalf Of David= Leonard
Sent: Wednesday, June 24, 2= 009 7:34 AM
To: Rotary m= otors in aircraft
Subject: [FlyRotary] Relay Woes=20

<= span style=3D"FONT-SIZE: 12pt">=A0

<= span style=3D"FONT-SIZE: 12pt">For you EE types, I have a question.=A0=A0 I= am installing a smoke system and wanted to use a relay to control the pump= .=A0 I bought this relay from Mouser that I thought would do the trick:

http= ://www.mouser.com/Search/ProductDetail.aspx?qs=3DsGAEpiMZZMtLEhJ5P%2fNsZ6bn= rz6%2f%252b%252bJvA50eSiydqPQ%3d

The problem is that if there is any load (like the pump or even the 0.0= 2A indicator LED I installed, then the relay will not turn off when I turn = off the signal voltage.=A0 So either I do not understand how to use the rel= ay, or I chose the wrong relay.=A0 I have checked my wiring in-so-much as t= o confirm that the signal voltage does turn on and off with the switch, vol= tage across the 'LOAD" terminals does disappear when there is no l= oad but not when there is a load (current).=A0

Is it possibly because this relay is designed for an AC load?=A0 Other = suggestions?

--
David Leonard

Turbo Rotary RV-6 N4VY
<= a href=3D"http://n4vy.rotaryroster.net/" target=3D"_blank">http://N4VY.Rota= ryRoster.net
http://RotaryRoster.= net




--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
--0016364ed386ad5def046d1ea047--