Re: Relay Problem - Chattering

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

hmmmm . .. the mystery widens.
Are you directly energizing your relay or are you using a latching network
where the output of the relay will latch itself open until a normally closed
switch breaks the latch.

Dan



 > Hi all,
 >    The main power relay in my power contoller seems to do
 > the same thing.. sometime I'll energize it and it works
 > just fine.. other times it's like it can't decide if it
 > wants to close or not.. it's rated for 120VAC.. I haven't
 > been able to figure it out either.. :-/
 >
 > Coiling In Pittsburgh
 > Ben McMillen
 >
 > --- Tesla list <tesla-at-pupman-dot-com> wrote:
 >  > Original poster: "by way of Terry Fritz
 >  > <teslalist-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>
 >  >
 >  > I'm pretty sure its a 120VAC coil.  But i'll double
 >  > check.  I've been known
 >  > to do stupid things like that.
 >  >
 >  > Dan
 >  >
 >  >
 >  >
 >  >
 >  >  > Sounds like it could be a DC coil on that relay and
 >  > you are feeding it AC.
 >  >  >
 >  >  > Regards,
 >  >  > Brian B.
 >  >  >
 >  >  > -----Original Message-----
 >  >  > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 >  >  > Sent: Wednesday, January 15, 2003 3:19 PM
 >  >  > To: tesla-at-pupman-dot-com
 >  >  > Subject: Relay Problem - Chattering
 >  >  >
 >  >  >
 >  >  > Original poster: "by way of Terry Fritz
 >  > <teslalist-at-qwest-dot-net>"
 >  >  > <dhmccauley-at-spacecatlighting-dot-com>
 >  >  >
 >  >  > I'm currently having a problem with my relay.
 >  >  >
 >  >  > Approximately 20% of the time I try to energize the
 >  > relay, the relay will
 >  >  > begin to chatter and not work correctly.
 >  >  > Since my circuit utilizes a simple latch network, I
 >  > first thought it might
 >  >  > be a feedback oscillation problem, but
 >  >  > after looking at my circuit, didn't really see any
 >  > possible problem.
 >  >  >
 >  >  > Here is my schematic:
 >  >  >
 >  >  >
 >  >
 > http://www.spacecatlighting-dot-com/datasheets/sc2020_sheet2.pdf
 >  >  >
 >  >  > Anyone see a problem, or could this just be a faulty
 >  > relay???
 >  >  >
 >  >  > Any help appreciated.
 >  >  >
 >  >  > Thanks
 >  >  >
 >  >  > Dan
 >  >  >
 >  >  >
 >  >  >