Stenner Pump Controller/Automation

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Okay, bet you all thought that this thread was "dead", but not so much lol. It's only just because I've been around the world first to finally be able to end up next door on this project. ;)

I'm just about ready to pull the plug on the IntellipH I think and control acid dosing via REM/nodejs-poolController-dashPanel, and while utilizing a Sequent MicroSystems 10A/240V 4-relay card. Dosing will occur based on pH readings obtained via the Atlas Scientific Industrial pH sensor/probe. Real-time acid tank level monitoring will occur by utilizing REM's new Tank Level Metering feature. (more details to follow in a different thread). No more need looking for a tank level sensor now.
2020-12-06_10-13-53-jpg.170269
2020-12-06_09-58-14.jpg

Just a question or two before I proceed.

1. @cmc0619 or @Katodude (coz you guys know my setup). Would it be okay to obtain the 24VDC needed to power the peristaltic pump, from the same 24VDC PSU that is currently providing power to the Sequent MEGA-IND Automation and 4-relay cards? I would assume so, but like the saying goes. The one question you don't ask is the one that will cause you the most grief.

2. I would also assume that the following diagram (hey, I'm not an artist like @jonpcar is :p), illustrates the correct method in which to do this right? Again, just want to make sure I'm "on track" here before I go connecting wires. (smoke coming from my new automation panel would be a very bad thing).

2021-01-02_18-57-16.jpg

Thanks all...
r.
EDIT: @Dirk ... My IpH controller panel may be available sooner than I thought, if this all plays out the way I hope it will. 🤞
 

Attachments

  • 2020-12-06_10-13-53.jpg
    2020-12-06_10-13-53.jpg
    66.3 KB · Views: 104
Last edited:

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Okay, So, I just went out and performed some "documentation confirmations" on what is in the IntellipH manual.

1. Yes, the power to drive the peristaltic pump IS 24VDC. Performed a manual dosing (60 seconds) and measured the DC volts across the two conductor terminals. Okay, good-to-go there.

2. I also needed to know how accurate the dosing amount that was listed in the manual was. This is so I can plug that number into dashPanel/REM for the RDCLM calculations
The manual states "Approximately 4 oz. of acid will be dispensed". This is based on a 60 second dosing event.
I pulled the acid injector tube from the check valve doohickey and placed it in a measuring cup. I got 105 mL which converts to approx 3.69 oz.
Pentair was off by about 8%. Not too bad.

It's a shame that I have to confirm everything that I read in Pentair documentation. But sorry Pentair, you've fooled me "one too many times". ;)
r.
 
Last edited:

Katodude

Silver Supporter
Aug 22, 2017
1,286
West Palm Beach/Florida
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Assuming you over spec’d the 24VDC power supply (which would be normal for you) you should be just fine.

And who said smoke coming from your OCP would be a bad thing. You could potentially cook with that smoke.
 
  • Haha
Reactions: MyAZPool

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Assuming you over spec’d the 24VDC power supply (which would be normal for you) you should be just fine.
@Katodude
Thanks. It's the MEAN WELL EDR-120-5. 24V, 5-amp, 120W PSU. I know that the pump specs say "Max Load, 1 amp". The Mega-Ind specs say "Power Consumption - 50 mA @+24V. And the
4-relay card, I have no idea. As you know, a user cannot download a manual from Sequent MS unless you have an account and login. Last week when I tried to order that second set of cards. I couldn't login, so I called and Mihai told me that the "login" feature of the website was down. I just checked it this morning and still not working. So I can't get to the manual to look up the power consumption of the 4-relay card at this time.

Does the method of connecting power to the peristaltic pump through the relay look correct to you?

And who said smoke coming from your OCP would be a bad thing. You could potentially cook with that smoke.

Wouldn't exactly be my "first choice" for smoking. That "plastic" taste on the ribs, just wouldn't work for me. :p
Thanks...
r.
 

Flying Tivo

Well-known member
Jan 24, 2017
2,007
Monterrey, NL, Mexico
Does the method of connecting power to the peristaltic pump through the relay look correct to you?
That the way i have it hooked up since i removed my intelliph box, just that im using both poles instead of one as you have it. No harm having one pole live on the iPh motor. I always though that you had to leave the + live and the - to close by the relay, but since its DC voltage i thing it does not really matter which side is live.
 

randytsuch

LifeTime Supporter
Mar 29, 2008
286
Los Angeles, Ca
FYI, looked at a pic of your sequent pi relay card
It uses four Songle srd-05vdc-sl-c relays.
Its for a pi, and appears to run on 5V

So is a pi and a 5V power supply in the mix somewhere?

I don't know what your system looks like.

But regardless, the relay card I saw in the picture won't use much power. Each relay takes about one third of a watt to activate, so less than 1.5 watts if all are active at once. That would be most of the power, whole card would be less than 2 watts.
 
  • Like
Reactions: MyAZPool

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
FYI, looked at a pic of your sequent pi relay card
It uses four Songle srd-05vdc-sl-c relays.
Its for a pi, and appears to run on 5V

So is a pi and a 5V power supply in the mix somewhere?
@randytsuch
Hey, thanks very much for the reply.
Yes sir, I am using a Raspberry Pi 4B and yes, the Rpi, 2-fan hat and two Tentacle T3 shields are powered by a 5VDC PSU.

But regardless, the relay card I saw in the picture won't use much power. Each relay takes about one third of a watt to activate, so less than 1.5 watts if all are active at once. That would be most of the power, whole card would be less than 2 watts.
Great information. Thanks much. :thumleft:
r.
 

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
But regardless, the relay card I saw in the picture won't use much power. Each relay takes about one third of a watt to activate, so less than 1.5 watts if all are active at once. That would be most of the power, whole card would be less than 2 watts.
@randytsuch
Was finally able to get their manual downloaded, yep, only about 80mA per relay... Had to revise my diagram though.. Based on some advice, looks as though I need to incorporate an RC Snubber Circuit in the mix to help prevent a possible relay fusing since the relay is controlling pump/motor etc... Ordered and now I have to wait on that.
r.
 
Last edited:

randytsuch

LifeTime Supporter
Mar 29, 2008
286
Los Angeles, Ca
I use similar (if not identical) relays to control my vsp, spa heater and sprinklers. VSP and heater are easy loads, but sprinklers are through very long wires (wires are inductive) and sprinkler actuators should be similar to a small motor, load wise. Never had a problem (knock on wood) without a snubber.
So I'm not convinced you need a snubber, but I don't think it will hurt either.

BTW, I use a pretty heavy duty relay to control power to a one horsepower motor for my spa
Spa motor relay

I remember researching what pool equipment companies use, and picking a similar relay. Installed over 2 1/2 years ago, working fine so far with no snubber.
 
  • Like
Reactions: MyAZPool

MyAZPool

Gold Supporter
Jul 3, 2018
1,837
Arizona
Pool Size
20500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
UPDATE:
The snubber circuit module arrived. All connected up and working fine as far as I can tell. Connected per the below illustrations.
2021-01-02_18-57-16.jpg
2021-01-05_07-25-07.jpg
 
  • Like
Reactions: Flying Tivo

Enjoying this content?

Support TFP with a donation.

Give Support
Thread Status
Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.