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Controller for two water pumps

gigit 1614 21
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How can I control two 230V water pumps so that pump 1 runs normally, but switches off while pump 2 runs on a timer?

Use a timer and a changeover relay so the timer selects between the two pumps: when the relay is at rest, pump 1 is powered through NC, and when the timer energizes the relay, pump 2 is powered through NO [#15962582][#15962687] If your controller already has a relay output, wire mains L to COM, pump 1 to NC, and pump 2 to NO; connect N to both pumps and the controller supply as required [#16072064] If the timer output alone cannot switch the pumps directly, add a 230V-coil relay with NO/NC contacts between the timer and the pumps [#15962582][#16072064] A two-channel timer with non-overlapping schedules would also work, but the single-channel NO/NC relay approach is enough for this case [#15962589][#15962687] Check the controller manual first, because the exact programming options vary [#16072064]
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  • #1 15962547
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    Hello
    I am looking for a controller or power system for two water pumps. One pump is to run all the time, while the second pump is to be time-controlled (e.g. turns on at 15 :00 and runs for 30min). When the second pump is running, the first pump should be switched off. When pump 2 stops running (after 30min), pump 1 is switched on and runs until pump 2 starts up again.
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  • #2 15962582
    MARIUSZ R
    Level 28  
    Posts: 1055
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    I suggest a time controller, analogue or digital, plugged into a 230V socket. Add a two-pole relay with a 230V coil with NO/NC contacts. The 230V output from the programmer is fed to the COM, the NC contacts to pump no.1, the NO contacts to pump no.2. Of course, if the pumps are on 230V.
  • #3 15962589
    Witek76
    Level 25  
    Posts: 568
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    Or a two-channel timer, configured so that the time windows do not overlap.
    Link
  • #4 15962607
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    The pumps are from the aquarium
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  • #5 15962687
    Witek76
    Level 25  
    Posts: 568
    Help: 78
    Rate: 229
    A single-channel timer is sufficient. To use the NO contact for the first pump and the NC contact for the second pump.
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  • #6 16069518
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    Witek76 wrote:
    This is sufficient for a single channel timer. To use the NO contact for the first pump, and the NC contact for the second pump.

    Thanks for your interest, could you please send me a link to the contacts and how to connect this. I have a controller like this Link
    I found something else like this
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    • Controller for two water pumps 1435732073-626777925.jpg (436.55 KB) You must be logged in to download this attachment.
  • #7 16072064
    Witek76
    Level 25  
    Posts: 568
    Help: 78
    Rate: 229
    gigit wrote:
    The controller I have is Link

    Here you would need to use an additional relay to switch off pump 1 when pump 2 is switched on by the controller. As MARIUSZ R wrote earlier.

    gigit wrote:
    I found something else like this

    In this case it will be simpler: mains power - L phase to COM contact (3), you connect pump 1 to NC contact (5), pump 2 to NO contact (4). Of course, on the other side of the controller you need to connect the L and N supply (these terminals are not shown in the photo), and N to pumps 1 and 2.

    I point out that I don't know the software capabilities of the aforementioned controllers, you'll have to check in the manuals if they can be configured in the way you expect.
  • #8 16077060
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    I could ask for a link to the above relay....
  • #10 16078739
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    kkknc wrote:
    https://goo.gl/images/JoWsAi
    Plus a small box, chokes and two sockets for two pumps.

    And connect all this to a timer controller?
  • #12 18200160
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    Since the subject has come up again, I would like to ask quickly whether I should continue with the pi84 gzt80 or maybe something else?
  • #13 18478504
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    Welcome to the new year. I have an interface controller but now I don't know how to connect it , could someone advise me how to put it together? Specifically I mean where and how to connect the power supply, where to connect the timer controller and how to connect the two pumps.
    Controller for two water pumps Controller for two water pumps
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  • #14 18480810
    kkknc
    Level 43  
    Posts: 23501
    Help: 1906
    Rate: 6634
    It is a two-track relay. Not a controller. The schematic is on the housing. If you can't make it, I'll describe it for you....
  • #15 18482349
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    Actually ... i have looked at this relay thoughtlessly, i.e. the power goes to COM terminals 21 and 11, the pump, which is to be permanently powered, goes to NC 22 and 12, then the timer pump to NO 24 and 14, the COIL switch A1 and A2. I would also like to connect some LEDs to signal the operation of this system, is there anything that can be directly connected to the 230 power supply or will an additional power supply be necessary? Specifically, I want two signals, the first for the entire system that the power is on (e.g. green), and the second that the timer pump is on during operation (red)
  • #16 18482359
    kkknc
    Level 43  
    Posts: 23501
    Help: 1906
    Rate: 6634
    There are ready-made diodes have 230V with a socket. So there is no problem.
  • #17 18493098
    gigit
    Level 12  
    Posts: 204
    Rate: 45
    It has become apparent that I will need float switches, could someone recommend me something good proven.
  • #18 18493333
    kkknc
    Level 43  
    Posts: 23501
    Help: 1906
    Rate: 6634
    There is a choice of colours to choose from.
    Controller for two water pumps
  • #19 18493650
    Ryszard49
    Level 39  
    Posts: 6186
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    kkknc , the subject author needs this for the aquarium.
  • #20 18493754
    kkknc
    Level 43  
    Posts: 23501
    Help: 1906
    Rate: 6634
    Any of these will do. Well, unless the aquarium is 5 l.
    This can of course be done more elegantly on external capacitive sensors.
  • #21 18493929
    sk1977
    IT specialist  
    Posts: 8047
    Help: 1326
    Rate: 741
    I wouldn't fit something like this into an aquarium, even a large one.
    One issue is aesthetics. The other - possible impact on animals, plants.
    See the auction 7970251584 - mounted on the glass on the outside - it does not affect the flora and fauna in the aquarium, but requires a 5-24V power supply and a relay to control higher voltages or higher currents.
    Control can be done in a number of ways - from simple to more complex.
    Helpful post? Buy me a coffee.
  • #22 18493957
    kkknc
    Level 43  
    Posts: 23501
    Help: 1906
    Rate: 6634
    There's a bit of that. Here are the external sensors.
    Controller for two water pumps Controller for two water pumps Controller for two water pumps Controller for two water pumps
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