2 RAs in tandem + H2O Automation

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PostPosted: Sun Mar 09, 2014 2:49 pm
Ok. Today I setup the wiring for the relays that will control the automatic water change pump and the solenoid for my RO. All I have left now is to get the ReefAngel programmed and connect the 5V outputs to the trigger input on the relays. Then the main part of the electronics will be done. I do still have to get the control signal from upstairs connected and the float switch wired up for the ReefAngel's inputs, but that's just splicing wires.

https://www.youtube.com/watch?v=yvHLUKTDDv0
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PostPosted: Sun Mar 09, 2014 5:17 pm
Ok i screwed up the relays when i tried to hook up the reef angel dimming ports. Now the red light is stuck on like the trigger is active but the relay is open and the trigger no longer responds. I'm not sure whats going on. I ordered 4 more relays...will try again in a month when they arrive. :(
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Location: Davie, FL
PostPosted: Sun Mar 09, 2014 5:20 pm
I had a similar issue with my 12v relay and it turned out that the power supply was not putting out enough voltage.

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PostPosted: Sun Mar 09, 2014 5:53 pm
Whats weird is that when it was hooked up both relays were coming on at the same time. Something with my wiring may be flawed I don't know. Will see what happens next time. I will try and document the circuit better and get some input.
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PostPosted: Sun Mar 09, 2014 6:04 pm
Yeah. Let me see the circuit and maybe another set of eyes will help.

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PostPosted: Sun Mar 09, 2014 8:55 pm
Here's the circuit. Lmk what you think. You can watch the video to see the actual wiring job. Hopefully this makes sense.

Image
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PostPosted: Mon Mar 10, 2014 5:29 am
So just to clarify the IN is connected to dimming ports which are set to analog / 0-5V ports. I am setting the ports to 100% for what should be the 5V trigger.
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PostPosted: Mon Mar 10, 2014 6:13 am
Lee;

I can see the sketch on my phone thru Tapatalk, but I can't see it here and it is too small on my phone.
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PostPosted: Mon Mar 10, 2014 7:31 am
It looks good to me.

The two 5v things at the top are the RA dimming ports?
Obviously it worked with the 24V triggering the relays, did it ever work with the 5V RA Signal triggering it?
I can't remember are you using the dimming channel to trigger the relay or the ATO ports?

The reason I'm asking is since the dimming channels are sending out 0-5v are you sure the relay is getting the full 5v or if it is less it may not be enough to trigger the relay.

Also (Stupid question, but need to ask) you said the relay has a high and low trigger, are you sure that you switched it over to use the low trigger.

Finally, what happens if there is no load connected, it shouldn't make a difference, but you never know.
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PostPosted: Mon Mar 10, 2014 7:59 am
Yes, I"m using dimming ports for this. I did not confirm that they are sending out the full 5V. I will be doing a bit more testing next time around. I can set them back to 0-10V and then adjust the output to get to the full 5V if thats an issue.
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