Reef Angel Forum

Awesome!!!

Piper wrote:Picked up my pump today Man, this thing moves some water! On W1 I can get a wave going and push water out of the tank without hesitation.

Roberto - I'll bring it with me on Saturday. You do what you want/need to do with it and I'll grab it at one of the next meetings. I'll probably end up selling this one once you're done with it (it's too big for my 65) and grab two of the smaller WP25s if and when they come out.

~Charlie

Charlie I really appreciate you doing this. It will really help out the community trying to get this this controlled.

Make sure you thank Roberto too. I got the easy part. Roberto will be doing all the heavy lifting

Piper wrote:Make sure you thank Roberto too. I got the easy part. Roberto will be doing all the heavy lifting

Very true. Pretty sure I thank Roberto daily as I always seem to have some questions. Lol



Roberto thanks again for all the support!!!!!!!

Can't wait to see what Roberto can figure out. Mine should be here any day now.

Page #38, post 691 and the next few post sounds like the key to controlling this thing.

http://www.reefcentral.com/forums/showt ... 44&page=28

I'm thinking most are hoping for pwm straight to ra.

Ok, I got my hands on this pump today and was able to run it through the scope
It's a 100% DC pump that uses 24VDC as power and 0-5VDC analog signal as control.
The pump itself has 3 wires. One for GND, One for 24VDC and one for control.
So, I could build a custom board so we don't even need to mess with opening the little control box provided by them and start cutting wires to interface it, assuming we can find that connector.
A photo of the connector is here:
http://i761.photobucket.com/albums/xx25 ... bc9981.jpg
You can use the RA with analog signal to control the pump. Just make sure to use 0-50% to achieve the 0-5VDC output signal.
I hope this clarifies a lot of the doubts and confusion.

English please. I just got mine today, so what do I need to to hook this thing up to my RA?

You need the RA with analog dimming signal.

Well son of a bitch I have the PWM model

Thanks for clearing that up Roberto.

I wonder if we could get a PWM port to provide an analog signal with the addition of some caps and resistors. Time to Google.

Dennis

Looks like a low pass filter would be able to do this. PWM --> Analog.

Dennis

Heh, I just went and looked again at the photo posted of the controller on RC (http://www.reefcentral.com/forums/showp ... ostcount=7).

It looks like they are using a low pass filter to convert PWM to Analog for the VA line.

Dennis

dcartier wrote:Heh, I just went and looked again at the photo posted of the controller on RC (http://www.reefcentral.com/forums/showp ... ostcount=7).

It looks like they are using a low pass filter to convert PWM to Analog for the VA line.

Dennis

Dennis Thanks for the inputs, really hope to see it work with RA soon i have PWM signal too

Hi Dennis,
It was late yesterday and I didn't go deep into the board design.
I just wanted to scope and post my findings.
Indeed they are using low pass to smooth out the PWM.
This method works just fine. That's what I use for the conversion too, but in my experience in the past, I had always to buffer the signal with an op amp because the LED drivers or Tunze pumps need more juice than the low pass could provide.
With that said, I guess this pump doesn't need as much
Since the pump is not mine, I need to ask the owner if I can take it apart and hook it up to RA, but it looks like we will be able to use it just fine.
BTW, this pump hauls some dirt, man...
It's super strong.

rimai wrote:Since the pump is not mine, I need to ask the owner if I can take it apart and hook it up to RA, but it looks like we will be able to use it just fine.

Have at it, Roberto! Feel free to do what ever you want to it. Ideally I would like to be able to sell it off when you're done but if something happens to it oh well. I'd much rather know how to hook these up to the RA than to recover my investment.

~Charlie

I forgot to tell you yesterday but I was not able to find the light sensor that was supposed to be in the box with the pump. Hopefully you don't need that for anything.

I can say that it works on PWM signal too
You do need a low pass filter though.
I created a custom harness
http://i761.photobucket.com/albums/xx25 ... 3734f7.jpg
I'm able to control it just fine with both analog and PWM version of RA

rimai wrote:I can say that it works on PWM signal too
You do need a low pass filter though.
I created a custom harness
http://i761.photobucket.com/albums/xx25 ... 3734f7.jpg
I'm able to control it just fine with both analog and PWM version of RA

Roberto!! I'm jealous.

Thanks to everyones input.

Okay where can I buy a low pass filter?

Seedlessone wrote:

rimai wrote:I can say that it works on PWM signal too
You do need a low pass filter though.
I created a custom harness
http://i761.photobucket.com/albums/xx25 ... 3734f7.jpg
I'm able to control it just fine with both analog and PWM version of RA

Roberto!! I'm jealous.

Thanks to everyones input.

Okay where can I buy a low pass filter?

Ditto

treetopflyn wrote:

Seedlessone wrote:

rimai wrote:I can say that it works on PWM signal too
You do need a low pass filter though.
I created a custom harness
http://i761.photobucket.com/albums/xx25 ... 3734f7.jpg
I'm able to control it just fine with both analog and PWM version of RA

Roberto!! I'm jealous.

Thanks to everyones input.

Okay where can I buy a low pass filter?

Ditto

After looking around these will have to be made DIY. It's pretty simple board with a resistor and a capacitor.


Please someone stop me if I'm being a complete noob.

http://www.st-andrews.ac.uk/~www_pa/Sco ... otos2.html

Example of a low pass filter.

For the Arduino, an R value = 3.9K and a C value = 0.1uF works well for most applications

So how long before the RA Jebo adapter will be available for purchase on the site?

Piper wrote:So how long before the RA Jebo adapter will be available for purchase on the site?

I would imagine Roberto will be quick on this one. Not much to it.

The values used on the jebao controller was 1k and 2.2uF
I felt this wasn't good enough values. I was getting a lot of ripple when I scoped.
So, my custom harness has 10k and 10uF. I also used another 10k as voltage divider.
So, the 0-10V would be cut down in half and give a 0-5V to the pump.
This way, we can use 0 to 100% on the dimming channels.
Well, technically the pump has a cut off. I didn't measure it, but it is about 15% to 20%, so the usable range is 15 to 100%.
I'll look for a source of those 3pin connectors and we should have the hardness at the webstore soon


Sent from my Galaxy S3 using Tapatalk 2

So what would the recommended dimming type be? I know you said either would work...but which would work out of the box?

rimai wrote:The values used on the jebao controller was 1k and 2.2uF
I felt this wasn't good enough values. I was getting a lot of ripple when I scoped.
So, my custom harness has 10k and 10uF. I also used another 10k as voltage divider.
So, the 0-10V would be cut down in half and give a 0-5V to the pump.
This way, we can use 0 to 100% on the dimming channels.
Well, technically the pump has a cut off. I didn't measure it, but it is about 15% to 20%, so the usable range is 15 to 100%.
I'll look for a source of those 3pin connectors and we should have the hardness at the webstore soon


Sent from my Galaxy S3 using Tapatalk 2

I think I may have already found a source for the 3 pin. I'll email you later.

Roberto you are a pro!

Ok so if I am understanding this right. I buy the jebo wp40. Throw their controller away. Mod the harness(or buy one when available). Ra will take control.
If this is correct I will order one today.

johniii wrote:Ok so if I am understanding this right. I buy the jebo wp40. Throw their controller away. Mod the harness(or buy one when available). Ra will take control.
If this is correct I will order one today.

Yeap
Throw away their controller and mod the cable or wait for it to be available in the webstore.