Got a call about this Eaton lighting controller not working.

[brantmacga]

One of the guys called me from this job, said he can’t get anything in the Eaton supplied lighting control panel to work. Asked him to send me a pic of it......

Take a look at the transformer in the bottom left. Nice job QC.

These relays are controlling remote-switching circuit breakers.

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[romex jockey]

http://lightingsupport.eaton.com/

???:????
~RJ~

 

[infinity]

Should be some wires landed on H2 and H3.

 

[brantmacga]

http://lightingsupport.eaton.com/

???:????
~RJ~

I didn’t bother calling them. I just sent an email with that picture to Wesco and asked them to forward to Eaton.


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[brantmacga]

Should be some wires landed on H2 and H3.

Exactly, so I’m certain they didn’t test it. But it somehow passed their “inspection.”


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[Jraef]

Should be some wires landed on H2 and H3.

Wires? Why? It has that little black line printed on there, isn't that enough?

 

[sameguy]

Trouble shooting 101, do you have power?
I would question your man.

 

[oldsparky52]

What are the two unused terminals (NA and XF) on the secondary side of that transformer.

Nice trouble shooting from a distance. :thumbsup:

 

[GoldDigger]

My question is what is powering the display on the controller? Backup battery if transformer is not working?

 

[petersonra]

Exactly, so I’m certain they didn’t test it. But it somehow passed their “inspection.”


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inspection is included. testing is extra.

 

[PaulMmn]

If this isn't a new installation, why is there so much dust on the equipment?? Including the transformer!

 

[steve66]

inspection is included. testing is extra.

I'm supposed to check those every week. And the one year I don't do it.....

 

[brantmacga]

What are the two unused terminals (NA and XF) on the secondary side of that transformer.

Nice trouble shooting from a distance. :thumbsup:

I’m not sure honestly.


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[hbiss]

I’m not sure honestly.

Probably should look at the connection diagram on the side of the transformer, no? :happyyes:

-Hal

 

[oldsparky52]

I’m not sure honestly.


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It might be to add a fuse for secondary OCP, similar to this. (I just now looked it up)

 

[brantmacga]

Probably should look at the connection diagram on the side of the transformer, no? :happyyes:

-Hal

I’m not at that job, and I didn’t have them send me a pic of the diagram.


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[ptonsparky]

What are the two unused terminals (NA and XF) on the secondary side of that transformer.

Nice trouble shooting from a distance. :thumbsup:

Typically you can mount a secondary fuse holder on the transformer, but without RTFM, IDR the details.

 

[Jraef]

My question is what is powering the display on the controller? Backup battery if transformer is not working?

Probably 120V incoming. If you look, that transformer is 120V primary, 24V secondary, I'm assuming for the relays (some of the wires are labeled 24V). So the 120V is there and powering the Intermatic timer and they therefore think it is functional, but because they left the jumpers off of the transformer, there is no 24V secondary, so the relays don't work.

Here is a wiring diagram for an Acme CPT that is 120/240 to 24V, most brands will use the same convention. You can see that for 120V input, they needed jumpers from H1-H3, then from H2 to H4. No jumpers, no love...


I'd guess hat it has never worked, and someone has been manually turning the lights on and off for years...

 

[gar]

190725-1247 EDT

Also note there is no jumper from H2 to H3, and/or the primary is wired wrong.

.

 

[brantmacga]

Probably 120V incoming. If you look, that transformer is 120V primary, 24V secondary, I'm assuming for the relays.......

You can see that for 120V input, they needed jumpers from H1-H3, then from H2 to H4. No jumpers, no love...
View attachment 23410

That is correct.

I'd guess hat it has never worked, and someone has been manually turning the lights on and off for years...

This is a new install. Our guy was attempting to turn the lights on and called me when he could not get it to work.


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