The official WP40 running on controller thread.

Yes, that's what I want; keep the else mode on the controller and give it different power from the Apex, ie. Slow flow at night high flow during the day

I already control the pump with the Apex using a voltage divider so I can go from 0-100%. I just like the ELSE mode on the WP40

Another reason is my battery backup, this way I could skip powering the Apex to make the pump work, but I'm not sure it would work this way, I'm going to try
 
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Yes, they are the exact same ones. But make sure you understand, this is just the 3 pin LED connector portion. Those RA cables are comprised of more components than just the LED connectors, such as a DC jack, voltage divider, and low pass filter. Don't think that if you buy the connector you'll be done..


Can anyone share some ideas/coding on how they have Apex controlling these?
 
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dartier said:
These WP40's hooked to your own controller, running your own patterns, are awesome!

For the last couple of weeks I was using a Reefcrest type of pattern, or what I thought Reefcrest amounted to. It was a variable output pattern with a pump on each end set to x and max - x respectfully. Not sure how close to Reefcrest that actually is, but last night I added a wave component. Each pump toggles on and off alternating still using the variable sliding output split between the 2 pumps. I also increased the max limit since they are not constantly on any more so less chance of being too strong.

My Rics immediately opened larger, so they seem to approve.

Dennis
Click to expand...

Do you mind sharing your program? Is it for the Apex? I have been working on one, but it just isn't right.
 
This thread is sweet... Can't wait to build one for the WP40 I have and order another one! One question? Doesn't the pump run both forward and backward? This diagram shows -24V going to ground. Does this mean we lose the ability to reverse the pump?
 
Please anyone with Apex programming ideas, please post your program/setup for the Jebaos.

As far as I know this thing only goes one direction, dual direction would be cool though!

Checked voltage on the control wire, Jebao says that H1 is 100%, H2 is 75%, and H3 is 50%. The voltages being put out from the controller were 4.96v for 100%, 3.96v for 75%, and 2.96v for 50%, in case this helps anyone..
 
MrKickalot said:
This thread is sweet... Can't wait to build one for the WP40 I have and order another one! One question? Doesn't the pump run both forward and backward? This diagram shows -24V going to ground. Does this mean we lose the ability to reverse the pump?
Click to expand...

This pump runs in one direction, pushes water forward. Why would you want this pump to have the ability to run backward? It is not very efficient to move water backward with the design of the housing. Just wonder.
 
Reversing direction would be fabulous. Reef currents often move in back and forth flows. First one direction, then the opposite. The value in a pump reversing direction folds nicely into this natural reef current event. It's really too bad the pump won't do it.

BTW - my certainty that the pump won't do it has nothing to do with understanding how the pump works. It's understanding the marketing value of mimicking nature. So it follows that if vendors could field a reasonably priced pump to reverse flow, they'd have done it long ago.
 
Does anyone know what the resistance is on the control signal? The controller I'm going to use requires 1K ohm load, minimum.
 
Since there are only three wires connected to the pump, can I assume the analog signal negative and power negative are connected inside the pump and share the same wire coming back to the controller?
 
So going through the various threads, I'm slightly confused as to how to hook up the wp40/25's to a stock arduino. I've read that you need a cable, or a signal converter from pwm to 0-5v analog. Another individual has said they just ran the yellow wire over to their arduino and controlled it through pwm.

What is the current accepted method for hooking up one of these to an arduino and making it variable.
 
So can it take 0-5v pwm from an arduino and output 0-5v analog? I ask because everything I've seen points to the cable being for 0-10v analog to 0-5v analog or so I thought.
 
I just checked the RA forums about the cable, and it was said the cable is for 0-10v signals, I need to configure it for 0-5v signals. If someone has a part list/build on how to do that I would appreciate it. My knowledge of circuits is very limited atm, and zero knowledge of circuit diagrams (I'm working on that lol)
 
Just a tip that should point you in the right direction. If you have 1-5 volts already (say from a arduino, PWM) you need the low pass filter (this makes the signal usable to analog devices), but not the voltage divider (this just cuts the voltage in half).

Meldrath said:
I just checked the RA forums about the cable, and it was said the cable is for 0-10v signals, I need to configure it for 0-5v signals. If someone has a part list/build on how to do that I would appreciate it. My knowledge of circuits is very limited atm, and zero knowledge of circuit diagrams (I'm working on that lol)
Click to expand...
 
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