Powering DOS with only Aquabus

[Adamantium]

I’m a little confused. When I first set up my DOS, I plugged in 120v wall power, and the aquabus cable. Three weeks later, I’m realizing that the power adapter became unplugged, but dosing has continued with just the aquabus cable plugged in. What’s the deal? Why do I even need the power brick? Thanks!

 

[blaxsun]

The only way this could happen is if you're running a 1LINK cable to the DOs unit as well. Aquabus doesn't provide enough power for the unit (at least it doesn't for mine).

 

[Adamantium]

The only way this could happen is if you're running a 1LINK cable to the DOs unit as well. Aquabus doesn't provide enough power for the unit (at least it doesn't for mine).

No 1 link. Just aquabus.

 

[blaxsun]

No 1 link. Just aquabus.

Hmmm, weird. Maybe there's enough power in the Aquabus connection after all?

 

[Adamantium]

I might just be imagining it, but after plugging the power adapter back in just now, it sounds a little less… whiny and high pitched. Maybe it was working on just a trickle of power and that was impacting the pump?

 

[blaxsun]

I might just be imagining it, but after plugging the power adapter back in just now, it sounds a little less… whiny and high pitched. Maybe it was working on just a trickle of power and that was impacting the pump?

I really couldn't say, to be honest. Mine runs via 1LINK because that flimsy 24v power adapter was always coming out and causing the DOS to go offline.

 

[luckneto]

Only aquabus without power adapter, fusion registers the doses but the DOS motors don't turn and nothing is dosed.

 

[Breadman03]

The Apex logs continue AS IF it's working. I've tried and tested it after similar issues with mine a few years ago. Track your liquid levels and I'm positive you'll be able to confirm. Oh, I swapped to 1-link when I had a power supply go bad and really like the reduced clutter.

 

[SuncrestReef]

Do you have proof that it was dosing when the power adapter was unplugged? For example, did you visually observe the pumps rotating? Or are you just looking at the graphs? The graphs will update with or without the power adapter because it doesn’t know if the pumps are physically running.

See my DOS Tutorial for more details:

Neptune Apex Tutorials Part 9: DOS

Neptune DOS Tutorial

www.reef2reef.com

 

[Breadman03]

Do you have proof that it was dosing when the power adapter was unplugged? For example, did you visually observe the pumps rotating? Or are you just looking at the graphs? The graphs will update with or without the power adapter because it doesn’t know if the pumps are physically running.

I've always been of the opinion that the continued graphing is a serious weakness of the DOS system.

 

[Adamantium]

Do you have proof that it was dosing when the power adapter was unplugged? For example, did you visually observe the pumps rotating? Or are you just looking at the graphs? The graphs will update with or without the power adapter because it doesn’t know if the pumps are physically running.

See my DOS Tutorial for more details:

Neptune Apex Tutorials Part 9: DOS

Neptune DOS Tutorial

www.reef2reef.com

Yes. I saw it dripping out of the dosing lines. It's on the back of my display, so it was easy to catch.

 

[SuncrestReef]

Yes. I saw it dripping out of the dosing lines. It's on the back of my display, so it was easy to catch.

Please unplug the power adapter and then see if the DOS operates. It should not, because the motors operate on 24v, but AquaBus only supplies 12v to operate the circuit board.

@_AV Can you confirm if the DOS motors are even wired to a circuit that the 12v AquaBus could possibly power?

 

[Adamantium]

Please unplug the power adapter and then see if the DOS operates. It should not, because the motors operate on 24v, but AquaBus only supplies 12v to operate the circuit board.

@_AV Can you confirm if the DOS motors are even wired to a circuit that the 12v AquaBus could possibly power?

You know what, I'm sorry, I think that's definitely the case. The lights were on, so I assumed it was powered, but I probably just nudged the power adapter out recently. It comes out at the drop of a hat, apparently. I just unplugged it and tried to run it to no avail.

Sorry, all.

 

[_AV]

Right. DOS won't run pumps off of the 12v aquabus cable. The power for the pumps comes only from the 24v PSU. However, the aquabus port is wired to power the controller and the status LEDs on DOS. Those will light up and function without the 24v PSU, but the pumps won't spin.