Controller for two water pumps

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.

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.

Or a two-channel timer, configured so that the time windows do not overlap.
Link

The pumps are from the aquarium

A single-channel timer is sufficient. To use the NO contact for the first pump and the NC contact for the second pump.

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

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.

I could ask for a link to the above relay....

https://goo.gl/images/JoWsAi
Plus a small box, chokes and two sockets for two pumps.

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?

Exactly. It's supposed to be good and safe. And not to make it work somehow.
With a plug-in like this.
https://goo.gl/images/snbKkH

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?

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.

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....

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)

There are ready-made diodes have 230V with a socket. So there is no problem.

It has become apparent that I will need float switches, could someone recommend me something good proven.

There is a choice of colours to choose from.

kkknc , the subject author needs this for the aquarium.

Any of these will do. Well, unless the aquarium is 5 l.
This can of course be done more elegantly on external capacitive sensors.

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.

There's a bit of that. Here are the external sensors.