Water Tank Pump Starter Auto Cut-Off System Using Float Switch @ElectricalTechnician

Friends, through this video today I will teach you two types of wiring of electrical panel and the wiring will be according to our logic. As you can see here I have been given a question, logic has been given where it is being said that when this water tank gets empty, the pump should start automatically and as soon as the water tank gets full, in that condition our pump should stop automatically. Now, we will create this condition in two ways. The first panel that we will make will be on RLC, which means we are going to make it using contractor timer relay sensor. Second, in whatever condition there will be, we are going to make the complete electrical panel for this tank using PLC. I will tell you the diagram here and how to make it. Ok? So it is said here that the motor should turn off when the water tank is full and should start when it is empty. Now here one thing is being said that according to the level of water, if you have to detect the level of water then what will you use to detect it? Label sensor or if you want you can also use a float switch like this which is available. So the simple way here would be to use a float switch because here we only have to turn it on and off. If you also want to see how much percentage of water is there then in this condition you will need a level sensor. But here we do not have to see what the water level is. We just have to see whether our water tank is empty or full. Have to start it when it is empty. It has to be closed when it is full. That's all the work left to do. So for this we will use this type of float switch. Now if you look at the float switch, you will see it like this and inside the float switch, you will see three wires inside this float switch and one of the three wires will be our common wire through which we have to give incoming power supply. Meaning that if I have to provide power supply to this float switch of mine then I will provide the phase supply on its common wire. Now if we provide fair supply on this common wire, then its output power supply will be available to us from two places. One is through ANO contact here and the other is through NC contact here. Now when we go to do wiring here, we will have to think that inside this float switch, we are getting two contacts. Now which of these two contacts should we use? So look friends, here if we want we can use NO or we can also use NC. It depends where you are using it. If you want to use it for underground tank then you may have to use ANO contact and for overhead tank you may have to use NC contact. Ok? Now friends, here you will think how do I know whether I have to use Ano Contact or NC here. So look, there is a simple way to do this. You understand here that if my water tank is empty then what should I do in this condition? The motor has to be started. So if I want to start this motor of mine, then I will have to give it power supply. And when should the power supply go out? When the water tank is empty here, the float switch will remain downwards like this when the water tank is empty. Let me write this as float switch. So if the float switch is on the downward side then the power supply should go forward and after going forward the power supply should directly go to our motor and our motor should start here. So here we come to know that if the water tank is empty then the float switch will remain down and if the float switch remains down then we have to use the wire in which we will get the power supply and that wire is our NC wire here. Now let's talk about Eno Contact. Where will you use Eno Contact? So you will have to use Eno Contact for underground tank. As you might have seen, in the underground tank, when the water level in that tank is high, only then we have to start the motor. If the underground water tank is empty, in that condition will we take out the water from inside to outside? If we do not take it out, then in this condition, if the water in the tank here is full, then in this condition, the floor switch that we will install will hang upwards in this manner, and if the floor switch is upwards, then in this condition, our ANO contact will get converted into NC. When the float switch is in the down position it will be NO. But as soon as the float switch floats upwards in the water like this, that contact will get converted to NC. Meaning it will close and by closing the power supply will proceed further. Meaning, for underground tank, we have to use Ano contact here. So let me write underground tank here. And here we have to use NC contact for the overhead tank. So I wrote overhead tank here. You should keep this in mind whenever you go to connect a float switch. Ok? Now here you have to think about how to turn your water pump on and off? If you want, you can also switch it on and off directly using the float switch. But if you allow more current to flow through the float switch, then the possibility of current leakage in your float switch increases and the chances of current flowing in the water will increase. So it will be better that you control the contractor directly through the float switch. What is a contractor? You must already know all these things. If you don't know, then I have already made many of my previous videos. Please watch that video. I have explained in full detail about the contractor, what is a contractor? What is its A1 A2 terminal? What is our NO NC contact? How does it work ? How does the change happen? What is a power terminal ? I have already explained everything to you. You should watch those videos. I will provide the link to the video in the video description. Ok? Now let us move forward. Now friends, if I want a simple connection here, I can tell you. Where you can directly control our contactor through the floor switch. Like if you want to make a connection here then I will tell you quickly. In the next slide I will tell you a little about it at an advanced level. Like here we will create a complete proper panel. Before making this, let me explain the concept to you a little so that your knowledge gets built in a good manner. Ok? You will know a little about the basics. So, you will understand the slightly advanced things easily. Ok? So here we have to control this contactor and that too through a float switch. So we have to provide power supply to the float switch. Which power supply? So it can be an AC power supply , it can also be a DC power supply. There is no problem. Here you just have to see whether the contractor you are using here will work on AC power supply or on DC. If it works on AC power supply then you can control it by giving AC to the floor switch or if it works on DC then you can connect the DC power supply here. It depends on what power supply your contractor requires to operate. So here we need AC power supply. So what do I do? There is MCB here. Face supply to this MCB is given here. And by taking out the phase supply from here directly to the common terminal of the float switch, there will be a common wire in it. I will connect it in that. I have connected it here. Now this float switch will provide power supply at the output. Now what did I say about the output power supply ? We have to use NC contact here. So the NC wire of the float switch will be there, for example, let us assume that this is our NC wire. So we will take this NC wire and connect it to the A1 terminal here. So much work is complete. What would a float switch be? It will remain on the bottom side. So there will be current flow in this wire. And if the float switch remains in upward direction then there will be no power supply flow into it. Now here the contractor also needs a neutral supply to operate. So for this, we will take a neutral supply here and by taking the neutral supply directly from here, we will give the neutral supply to our contractor. Just make the connection this way. Connection complete. This is a very simple starter. Ok? This is not a starter. After this I will tell you about the advanced one. But at the present time, understand that if you want to turn on and off the contractor directly using the float switch, then you simply make the connection in this manner and your starter will be ready and will start working. what will happen here? If the float switch comes down the contactor is on. The motor will start once the contactor is turned on. Now friends, here we will understand a little advanced. At this time I told you that we are switching the contactor on and off directly through the float switch. But if you go to make an electrical panel, will you say this? no way. You have to create it using the proper start button and stop button there. So to make this, you will have to use a relay here. And what is a relay? You must already know this. It is a very simple electrical device which is used everywhere. And if you are an electrician electrical engineer then you must know about it. And I will not tell you about it in this video right now. If you don't know, the video has already been made. I will also give the link to that video in the description of the video. Or you can directly watch this video by clicking on the 'I' button here. From there you will know everything. I will tell you in this video. So the length of the video will increase a lot. I do n't want that. I want to tell you the whole concept. That's why let's skip this thing. Simply, at this time you should understand that to operate this relay, there are two terminals named A1 and A2. Well, A1 does not become A2. There is terminal number 134. We have to provide power supply to that terminal. So our relay gets turned on and due to the relay getting turned on there is NO NC contact here. That NO NC contact of ours gets changed. Just have to understand this much. It is just like a contractor. But contractor is used for heavy load and relay is used to allow low current to flow in the control circuit. Ok ? Now friends, if I go to the next page, here a poster comes in front of us where it is being said that there is going to be a live class of 45 days RLC NPLC. Where I mean that I am teaching you RLC means that I am teaching controlling here. How will you control this type? They are all going to have a live class. Where I am going to teach you electrical wiring electrical concepts while talking to you. Plus apart from this, we are also going to teach you PLC in our class here. If we talk about what we are going to learn in PLC then simply understand that here you will be taught basic programming, advanced programming, analog programming, HMI programming and apart from this, high speed programming is also going to be taught. If we talk about advancement from this then here we are going to teach you about Modbus communication, through which we run BFD and this whole class will run for a total of 45 days, which means that for 45 days we are going to teach you everything by talking to you through live class and the benefit of live class will be that you will talk to us directly and will learn everything while talking. There will be one more benefit in this. As soon as you have any doubt, you can immediately ask us the question. Whatever question there is, we will give you the answer to that question immediately. Meaning that you will not have any kind of doubt to ask later. Whatever doubt you have, ask directly. Get its answer. Now, this live class of ours will start from 10th May. Its timing is from 7:00 pm. That means our class will start at 7:00 pm in the evening and our class will be held from 7:00 pm till 7:00 PM till 8:30 PM here. Meaning there will be a class of 1.5 hours. That means you should understand that I am going to teach you everything for 90 minutes through live class. Now this live class will be through our Zoom class. Apart from this friends we are going to give you an additional benefit here that if by chance you miss our live class or want to watch the video of the live class again then for this we are going to provide you the entire live class for 3 years. As you will see, you will have all the classes at your disposal for 3 years. You can view the classes as many times as you want. We don't have any problem. You can open the class and watch it as many times as you want, 10 times, 15 times, 20 times. Apart from this, if you join our class then we are going to provide you ISO certified certificate here. And if you want to see the certificate then simply look here, this is going to be your certificate which will be of PLC. At present the certificate of electrical drawing has been pasted here. But the certificate you will get will be of PLC. Where you will get your name, your father's name, the date from which you joined the live class and the date of that class as well. Plus here I would like to tell you that this certificate is an ISO certified certificate. You can make your resume even stronger by using this certificate. If you want to join this course, this is our live class, if you want to join this live class, then I have given the link of this class in the description of the video. Apart from this, if you have any kind of question or want to talk to me, then my mobile number is also given here. You can see it is written here. I am writing it again for you here. Whenever you have any kind of doubt, want to talk about something, have any question, you can simply contact me on my mobile number. My mobile number is 898904606. You have to save this mobile number. You can contact us directly on this. Apart from this I would like to tell you one more thing. We have an app by the name of Electrical Technician, you will find the app on Play Store which is this app. You will see one thing in this app. Currently, more than 50 thousand students have joined our app. Meaning that the students have so much trust in us that they are joining us and taking training from us. And the number of students taking training on the app has currently reached 50000 plus. So if you also want to join us, want to take training from us or you want to read our reviews, how is our training, then in the description of this app, that is, the comments, the reviews, you can read those reviews. You will know whether the training we provide will really be beneficial for you or not. All the students who have taken training from us before have given reviews there. You should read those reviews. You will realise that no one will provide you training at the level that we teach you. We teach you from our heart and teach you by connecting with our hearts. We want that your knowledge should increase more than ours and you should grow further in your life, your future and your career. So if you want to join our course then I have given complete details in the description of the video. You can join the course from there. My mobile number is also given. You can also contact from there. Apart from this, if you want to download the app, then the link of the app is also given there. You can also download the app from there. Now let us understand here that how will we design the complete panel for our water tank in a proper manner. How to wire the panel. So see friends, here I have simply used a start button and a stop button. This is my start button. This is my stop push button. The contractor will not start when the start push button is pressed. My relay will start here. My circuit will remain in on condition once the relay is turned on. Then here I have my floor switch, this floor switch here will turn it on and off. Why do we have to use relay here ? Because I have to keep the circuit running here. Suppose I don't have to start the motor here anymore. What will happen if I keep the MCB on here? This float switch will keep turning my motor on and off. But if I want to close it permanently then I will press the stop button here. The whole motor is off it will not start. But what's the first thing I need to do when I turn it on ? I will start this by pressing the start push button. After switching it on, the float switch here is on the bottom side, so it will start the motor. If it is on the top then it will keep the motor in burn condition. Ok? Now see, wiring has to be done here, so what will you do for wiring ? Here we have a phase supply, first of all we will connect this phase supply to the MCB. Then we will have to take the power supply from the MCB and connect it to the stop push button. Now power will be supplied from the stop push button to the start push button. Then when we press the start push button, the power supply should directly go to terminal number 13 of this relay to turn it on. I have written terminal number 13 as A1 here. But here you please understand that this is my terminal number 13 and this is my terminal number 14. You should proceed with this understanding. Ok? So I got my face supply from here. Now to operate this relay, neutral supply is also required. So for neutral supply, I take the neutral wire here and connect it directly with the MCB here. Then the neutral supply from the MCB will come out from here. Okay, let me do one thing. Let me delete this a little bit. And I will remove this also from here. And I do one more thing. I will connect the neutral supply here. And taking this neutral supply directly from here, it was connected to this terminal. I'm making a change here so that there isn't a little wire overlap. Connected the face supply here and took it and connected it here. Ok? Now what will happen with so much wiring ? When I press the start push button here. This relay will turn on and turn off when it is released. Why would it stop? Because here power supply is required to hold the relay. And what will happen when you press this start push button? The power supply will go ahead from here. But what will happen once it is released? Power supply will not flow from here. Meaning that the power supply will only last till here. Ca n't go beyond this. Because of which there will be no power supply. Because of which it will stop. So here we will have to do something such that if we press this start push button once, then it will remain on. So for this we will have to take a wire here. The wire which we will have will be connected to the output of the stop push button from here. And this wire will have to be looped from here and connected to this common terminal. Now the wire of this common terminal will be our switch on NO and NC. So here we have to use Ano Contact. When it is switched on, power supply will start going to the ano contact from here. So we will use Ano Contact here. So by looping a wire through the N contact, we will connect it to the A1 terminal here. Meaning, here we have created a holding circuit. What happened with this? Press the start push button. Power supply goes here. This relay got activated and due to its activation the power supply went from here to here and it looped and reached this point. Meaning that this relay will remain on. Now through this relay we have to provide power to the float switch here. Then the conductor has to be switched on. So what will we do for this here? We'll take a wire here. So I take blue colored wire to connect it. Now what should I do here? This wire which is connected here, I will loop a wire from this wire on the anno contact and taking it, I will connect it with the common wire of the float switch. Then I will take one wire from the NC contact wire of the float switch. A wire is coming out from here. This is our NC wire. And I will take this wire directly and connect it to the A1 terminal. Now to operate this it requires neutral supply. So I will remove the neutral supply from here and take it and connect it directly to the A2 terminal. That's the only connection we need to make to create a starter. As you will see here, if I do not press the start push button at this time and do not turn it on, then in this condition this float switch will not be able to turn on or off this contractor. If I want this float switch to turn our contractor on and off, then for this, first I will have to turn on the relay by pressing the start push button. If the relay gets activated then this float switch will get power. And what happens if I put the float switch down ? The contractor is on and when it is raised the contractor is off. The float switch was lowered and the contractor started. When this is raised the contactor closes. In this way it will keep turning on and off continuously. Unless we turn off this relay by pressing the stop push button here. Here the float switch will stop switching our conductor on and off once the relay is turned off. And if the contractor is off then the motor is off, if the contractor is on then the motor is on. So this is how we can do the wiring here. Now friends, let us talk about how we would make this starter if we want to make it through PLC ? So see, for this I have made a diagram for PLC here. I have made a simple diagram. I will explain its wiring to you. By the way, I will explain the diagram of PLC to you in a good manner in the PLC class. Our class is going to start from tomorrow. If the class has already started. So if you want, you can also watch the recording of this class. You can learn through recordings. Ok? So friends, here you will see that I have a PLC. I have already made a video of wiring of PLC. Where I explained in full detail how the wiring of PLC is done. At this time I will explain it to you quickly. So look, here is my PLC, if I want to start this PLC, then to start it, first of all it will have to be given auxiliary power supply and its auxiliary power supply will be given at this place here. How did I know that I have to provide auxiliary power supply here. So simply you understand that on this terminal of this PLC, there is an earthing symbol on this terminal. Wherever you see the earthing symbol, understand that you have to provide alloy power supply there. What is meant by auxiliary power supply? We have to provide the power supply to keep your device on. Ok? So let us now start wiring the PLC. Look here I have a PLC. In this PLC you will see a 24 volt terminal here. So on this we have to provide power supply, DC power supply which will be our 24 volt DC power supply. So what do I do here ? Let me write 24 volts DC. Now here, I have to bring my positive power supply and connect it with this 24 volt terminal. After this we have to take negative power supply here. So here is the negative power supply. We will bring it and connect it to the zero volt terminal here. Apart from this, there is an earthing terminal here, we have to connect the earthing on it. So here I made reverse earthing and through this I took the power supply and connected it here. That means we have provided auxiliary power supply to this PLC. Now what will happen if auxiliary power supply is provided to PLC? Our PLC will start and we can program it if we want and after programming, the PLC needs an input signal through which it will know what work it has to do. So I have a float switch here to give the signal. I have to connect this float switch here. So in the float switch, I told you that you are going to get a total of three wires here. One will be Common, one will be NO and the other one will be NC here. So we have to use these three wires. Now, in this PLC, if you want, you can also use NO. You can also use NC. No problem. You will only have to make changes in programming. In most of the conditions we use NO or if you want you can also use NC. Ok? I will do it according to the old circuit. So here we will use NC only. Which we used in the previous circuit. So what do I need to do to wire this ? Here our float switch will need to be given power supply. And which power supply will go here? DC power supply because here in the input terminal we have to give DC power supply. Now how will we know whether we have to connect DC or AC on this input terminal, this will have to be explained a little in detail. I will explain it properly in my PLC class. At present, you should understand that in most of the conditions, PLC has DC connection. So for this we will use DC power supply. So for that we have to use DC power supply. Now if I take the power supply from here to this place using the DC power supply, the wiring will look a little dirty. So let me do one thing. Here there is a DC power supply where the positive power supply is there, I took a wire from that positive power supply and provided power supply to this float switch. I gave it input power supply. What is the input power supply given in? So you can simply understand that I have given the input power supply in the common wire here. Now for the output wire of this float switch , I use the purple colored wire. Took out the output from here through this wire and brought it here and connected it with x0. Now this wire, which wire will be ours ? This could be our NO or NC. Right now I told you that I want to use NC here. So I wrote NC here. Now see here, I told you that in our starter, we have to use the start stop push button also. So we will have to do its wiring here also. So to wire it I do one thing. Let me remove a little of the marking that I have done here so that we get space. Now look here I create a start button. Now I have to supply power to this start push button. So the power supply here which is coming in the input is the positive power supply of the 24 volt DC power supply, by looping a wire through the positive power supply, positive power supply will have to be given here also. Then the signal from this push button will go to the x1 terminal. If I want, I can connect this wire anywhere like x2, x3, x4, x5. There will be no problem. But right now I am using X1. Now in addition to this I will also have a stop push button here. So I will create the stop push button here. This became my stop push button. It needs to be given power supply. So we can provide the power supply by looping it from here, like this. Now the power supply that will come from this will go directly to this terminal. This means that the signal going to all input terminals is 24 volts. And apart from this here you will see there is S/S terminal. At this terminal we have to provide positive or negative power supply of DC power supply. Now when do you provide the positive? When do you provide the negative? I will tell you all those concepts in detail in the class. At present you should simply understand that if we have done the wiring here through positive power supply then we will have to give negative power supply on s/s terminal. So I will write -v here. And I bring a wire from here and connect it at this place like this. So what happened here? The connection of our input terminal is complete. The float switch will also give our signal on the input terminal and the push button will also provide the signal on this input terminal. Now through the output terminal, only connections have to be made to switch it on and off. Now this contractor may work on AC power supply or on DC. There is no problem. If it works on AC, then there is a relay output here, so you can use AC power supply on the relay output. If your contractor works on DC power supply then connect the DC power supply here and switch it on and off. At present I use AC power supply here. Let me grab a fuzz supply here. What am I going to do with this fuzz supply? First of all, I have a common terminal here. What is the common terminal? Wherever C0, C1, C2 are written like this, it will become our common terminal. So we have provided face supply on this common terminal. Now we will get the output power supply of this phase supply on this Y0. So we have to connect a wire to this terminal and by taking it to our contractor, we will have to provide the signal to activate it. Meaning that the fuzz supply which is being given here, this fuzz supply will come out from here and go directly to the contractor. Now when will the power supply be available from here? Depending on what programming we have done in this PLC, our on and off contractor here will be. Now to operate this contractor, neutral supply will also be required. So what we can do is there is a neutral supply here. You can take it here and connect it directly to the A2 terminal. This is the only connection you need to make for wiring the PLC. It is very easy, isn't it? Right now there are many concepts in this which I have not told you about. You have to understand a lot of concepts. Look, I don't want to make this class too long. That's why I have explained the important part to you. So that you can know that the wiring of PLC is very easy. You can do this easily. Now if you want to learn the wiring of PLC in a proper manner, if you want to learn what is called programming of PLC, like how the programming of this starter will be done, you will learn all these things through our course, our class is starting from tomorrow, 10th May, which will be conducted daily in the evening, the class will start from 7:00 pm to 8:30 pm, means we are going to teach you for 1.5 hours daily in the class, where you will learn by talking to us directly. So if you want to take training from us, want to take classes from us, then I have provided the link of all the courses in the description of this video. By clicking there you can join the course directly. Apart from this, if you want, our app is Electrical Technician App, which I told you earlier that here we have an app which at present more than 50000 students have already downloaded. By downloading this app and logging into it, you can easily learn the course you want to join and whatever you want to learn by joining it. I hope you liked today's video. Thank you very much for watching this video.