Re: (ET) Reverse Relay

["Dave & Deb" <daveb drizzle com>]

this is a pretty common problem.  after my second relay welded itself I 
put an
inline fuse in to protect the relay and then just for good measure and 
because I
found some that would work and were cheap bought a socket for the relay 
and 6
relays.  needless to say I never welded another relay after that.

the relays I bought for 2.50 each from hosfelt.com

dave



>
> Ok,
>       Now that I figured out how all the connections are made to the
> relay (it is a different style than the original one, so the connections
> are not the same as in the manual - that's what was screwing me up, since
> the way it's supposed to connect in the manual (as far as which poles
> connect when) isn't the same as this relay is supposed to work). At any
> rate, I've now verified that the relay is in fact blown - one of the
> contacts that moves when the relay is activated is welded together, so
> effectively the field current is able to bypass the field coil when in
> forward. Ok, so hopefully those relays I ordered last week will be here
> soon. :)
>
> Thanks for the help everyone,
> Mike
>
> --
>
> --------------------------------------------------------------
> Michael S. Briggs
> UNH Physics Department
> (603) 862-2828
> ---------------------------------------------------------------
>
> On Tue, 1 Aug 2006, Michael S Briggs wrote:
>
>>
>> Duh, just answered my own question - the extra two connections on the
>> bottom must be for the power to control the relay. :)
>>      Ok, so that answers that. But, the wires aren't connected to the
>> relay in the way the schematic shows (i.e. ignoring the bottom ones that
>> are for powering the relay, the middle (of the three in the manual) on 
>> the
>> right is supposed to have wire 10 connected - but my wire 10 is 
>> connected
>> to the bottom one on the right (not counting the real bottom ones, which
>> power the relay). So, either something is wired wrong (but it *was*
>> working, so I'll assume that's not the case), or this is a non-original
>> style of relay that has the connections different from in the service
>> manual. If that's the case, I need to figure out where the wires are
>> connected to this one, and how it's *supposed* to work.
>>
>> Mike
>>
>>
>
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