Re: SS Relays - Revisited

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "cutthroatplasmaco"
<cutthroatplasmaco@y...> wrote:

>
> > 1. What is the part number of the crydom?
> The model # is DC60S3

DC Input model so thats ok

> > 2. What are you using to turn it on?
> I'm using a campbelldesigns.com breakout board to trigger the

relay -

> 12VDC

Should work

> > 3. What is each wire of the crydom hooked to?
> so, the +12Vdc from the breakout board is hooked to the positive

side

> of the input on the relay, the gnd side of the breakout board is
> hooked to the other (I guess it would be referred to as gnd) side

of

> the input on the relay. +18Vdc side of the torch trigger is hooked

to

> the + side of the relay output. The other side of the torch trigger
> is hooked to the other side of the relay output.
>
> I had originally purchased an AC SSR and it worked, wired basically
> as I had wired this new crydom (except I wasn't using a breakout
> board at that time). The problem with that was when I shut the

relay

> off, it took up to a few seconds for the torch to shut off. So

after

> reading those past messages from Jon and others explaining why that
> happens, that's when I bought the dc relay... so, I'm fairly sure
> that it's wired correctly...

As I not familiar with the torch trigger, does it supply the 18VDC?
I would expect that the minus side output of the ssr to be connected
to the return of the power source, and the plus side to the device
(torch) minus and the device plus hooked to the plus of a DC power
source. If the trigger plus is really the low side of the load then
what you described is ok.

> > 4. What is the DC power source for the load you are switching.
> Not exactly sure what you mean here?... The Plasma cutter has 18Vdc
> on the ttorch trigger...

Is there an 18Vdc power supply that is part of the torch trigger?

Who/model of Trigger?