Example of industrial Operation Automation Circuit for Control Panel

Namaste, we have come with a new automation circuit for the control panel of an industrial operation. In this blog, we will create a single-line diagram of an automation circuit for industrial operation examples. 

Industrial Operation

 Example for automation circuit of Industrial Operation 

In this Industrial operation viscous fluid flows through the pump so the Operation statement is as follows:                                                

After an instant START signal from an NO button, the heating resistor R is connected to a nominal supply voltage. After a period of 10 minutes required to heat the viscous fluid, the pump starts to operate, and simultaneously the electrovalve V1 opens in order to supply the pipe network with the fluid. After an instant STOP signal from an NC button, the heating resistor is disconnected, the electrovalve V1 closes, the electrovalve V2 opens, and the pump operates for a period of 5 minutes. During this period, the pump supplies the pipe network with water for its cleaning. At the end of this period, the pump stops and the electrovalve V2 closes automatically.

Automation Circuit or Control Panel Wiring Diagram

 Step-1 

First, we must have a power supply (single phase) for the control circuit. So we will draw two horizontal lines parallel to each other at a distance from each other. R represents phase and N represents a neutral line. See the picture below.

Step-2  

We must have a button to start the operation. So we used the push button (start button). See the picture below.

Step-3 

When the push button (start button) is pressed the first heating resistor will start heating the viscous fluid (a viscous fluid can flow easily at high temperature) for 10 minutes. So we will connect the coil of the heating resistor relay in a series with the start button. C1 represents the coil of the heating resistor relay. See the picture below.

Step 4

We know that operation will stop automatically when we release the start pushbutton so we will use the latching process. So we connect the NO contact of the coil (C1) in parallel with the start push button. See the picture below.

Step-5

After starting the heating resistor, the viscous fluid must be heated for 10 minutes, then the pump and valve (V1) will work. So we will be using the ON delay timer (T1) which starts along with the heating resistor. So we used the NO contact of the coil (C1) in series with a timer(T1). See the picture below.

Step-6

After 10 minutes the pump will start working. So we used the NO contact of the on delay timer (T1) to operate the coil of the pump relay (C2). See the picture below.

Step-7

Now the pump is at running state. so we want, the timer(T1) is not to operate after the pump at running state, therefore, we will use the NC contact of the Coil(C2) of the pump relay but after stopping the timer(T1) the pump will stop automatically, therefore, we will use latching process. so we will use the NO contact of the coil( C2) in parallel to the timer(T1) NO contact. See the picture below.

Step-8

After 10 minutes, Valve (V1) will also operate but after the pump will start earlier. So we will use the NO contact of the coil(C2). C3 represents the Valve(V1) Solenoid Coil. See the picture below.

Step-9

We have so far designed the automation circuit to start the industrial operation. Now we want the operation to stop by pressing the push button. so we will add a stop push button in the branch of coil C1. See the picture below.

Step-10

After pressing the stop push button, the heating resistor and valve (V1) should stop working, but the pump should work for 5 minutes because a viscous fluid is present in the pipe, so cleaning the pipe through the water is Necessary. therefore when the Stop button is pressed then the ON delay timer(T2) will operate simultaneously the water valve(V1) will also operate. so we will use NC contact of the coil(C1) and NO Contact of Coil(C2).C4 represents the water valve Solenoid coil. See the picture below.

Step-11

After 5 minutes pump should stop. therefore we will use the NC contact of timer(T2) in the coil(C2) branch. See the picture below.

With this, we have designed an automation circuit for an industrial operation. Now we will come next time with a new industrial operation automation Circuit design or Control Panel wiring diagram.