Autor Thema: Swimming pool pump control PLC - VFD  (Gelesen 112 mal)

Offline happyheretoo

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Swimming pool pump control PLC - VFD
« am: Februar 22, 2021, 18:43:53 Nachmittag »
I'm also a newbie.  Got to start somewhere right?
I have an easy 4 and easy 7 software
Using ST (seems easier to me)

Fb=pumpprime
Fb=pooltemperature
Fb=pumpspeed
Fb=pumptime


pumpprime should close DI 1  with pressure switch 1 or 0 and pumpprime =0 stop 
If pool temperature A1 is >/=68F then pumptime = 07:00 to 10:00 and 7:00 to 11:00
If pooltemperature A1 is <67.9F then pumptime = 08:00 to 10:00 and 9:00 to 11:00
pumpspeed=1400 RPM
Happyheretoo 😎

Offline weiss_nix

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Antw:Swimming pool pump control PLC - VFD
« Antwort #1 am: Februar 24, 2021, 09:33:33 Vormittag »
hi happyheretoo,

maybe the exampel in the atachment can help to solve your problem.

regards
« Letzte Änderung: Februar 24, 2021, 14:47:24 Nachmittag von weiss_nix »
HTH & HAND

Manchmal, mitten in der Nacht da schleiche Ich mich zu meinem Wecker wenn er schläft, und brülle : NA WIE FÜHLT SICH DAS AN HÄÄ???
WICHTIG: Sämtliche Programme dienen lediglich der Veranschaulichung von Funktionen und sind nicht für den Produktiveinsatz geeignet!!

Offline Frohnius

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Antw:Swimming pool pump control PLC - VFD
« Antwort #2 am: Februar 24, 2021, 09:46:37 Vormittag »
hi,
a way to do this is ....


// to scale your analog in

LS01 ( 
   EN := ,
   I1 := IA1,
   X1 := 0,
   Y1 := -30,
   X2 := 4096,
   Y2 := 100,
   QV =>
);


// and enable a timer with the logic ... output of LS is lower than 50 for example
WT01 (
    EN := LS01QV < 50,
    Q1 =>
 );
 
// set the 2nd timer .. enabled like this one ...
// and the output is timer one or timer two




Offline weiss_nix

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Antw:Swimming pool pump control PLC - VFD
« Antwort #3 am: Februar 24, 2021, 10:00:52 Vormittag »
hi Frohnius,
we probably had the same idea  ;)
regards
HTH & HAND

Manchmal, mitten in der Nacht da schleiche Ich mich zu meinem Wecker wenn er schläft, und brülle : NA WIE FÜHLT SICH DAS AN HÄÄ???
WICHTIG: Sämtliche Programme dienen lediglich der Veranschaulichung von Funktionen und sind nicht für den Produktiveinsatz geeignet!!

Offline happyheretoo

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Antw:Swimming pool pump control PLC - VFD
« Antwort #4 am: Gestern um 16:22:31 »
Thank you guys!!!!
OK I understand the 4096 that's the scale of the analog input
Seems I need timer for pump prime, say 60 seconds and look at D1   D1 =1 or 0
I blew it on time timer one 7:00 AM and 11:00 AM and timer two 21:00 to 1:00 AM
I will use F for temperature

Hooked up pressure switch and temperature sensor yesterday. Will get them wired in later this week   
Happyheretoo 😎