1 or 2 dedicated 120VAC circuits for my CNC?

While drawing up my diagram I realized that the Omron relay and socket terminal numbers differ from the SSR & DPDT relay in the diagram you posted. The terminal numbers on the Omron relay/socket are labeled 1-8. The terminals on your diagram are labeled (11, 12, 14, 41, 42, 44). I want to be sure I connect to the correct terminals. 

You can see the connection diagram on the top of the relay.
 

Is this how I would connect these?
 
 

Thanks

I was researching the Fuji contactor (SC-E02/G) that you linked to. I am curious if it can handle the amps (15A) the dust collector is rated for? By looking at the datasheet I am not sure it has a high enough rating. For AC-3 applications it only shows specs down to 200V (7.8A) so I am not sure what the amps would be for 120V. 

 

It looks like the Eaton is rated (AC-3) at 15.5A (220V-440V). It does not show a 120V rating either but it is double the Fuji at the same voltages.

 

Am I looking at the correct specs? There are so many electrical specs on these components, I have a hard time knowing exactly what I am looking for. 

Never used them, but from the above spec i really do not trust Eaton, at all.
Notice how the Fuji rated current drops with the rise in voltage, Eaton does not.
Since you are using a single phase, you can always parallel relay contacts for more current.

RELAYS
Yes, you've got it correct with #8 being DC+ and #7 is DC-
You'll find that there are a few different relay contact numbering schemes used worldwide.  The symbols I used don't really follow a numbering scheme because I'd need 3 or 4 different symbols for each relay type in my wiring diagram library to cover all the numbering schemes.

But if you look closely at the picture on the relay (and I think you did) you can see the pairs of NO/NC contacts along with the COM, plus the coil connections at the bottom.  The coil diagram looks a little odd because they've drawn a flyback diode as well.

CONTACTOR
The Eaton is rated for 15.5A regardless of voltage, so go with that one.

tommylight wrote:

Never used them, but from the above spec i really do not trust Eaton, at all.
Notice how the Fuji rated current drops with the rise in voltage, Eaton does not.
Since you are using a single phase, you can always parallel relay contacts for more current.
 

DOH!

Why not Eaton?  I've haven't used a ton of their stuff, but I've got two VFD's and some other components doing OK.

spumco wrote:

 As you've probably discovered already, everyone has their own opinions about what to do. 
 

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