Re: Relay Problem - Chattering

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

Original poster: "Ben McMillen by way of Terry Fritz <teslalist-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>

Nope.. I'm not using any kind of latching setup.. other
than a push-button switch that mechanically latches.. so it
could be contact bounce.. I sort of agree with the drop in
power due to sudden loading.. my cabinet spikes pretty hard
when it powers up.. ;) I'll bet that's the problem..

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>
 >
 > 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
 >  >  >  >
 >  >  >  >