To design a logic for starting a 3-phase Induction Motor by Automatic Star- Delta Starter

Procedure

Step 1: Click on the Control Circuit button in Control Circuit Section.

Step 2: Get the required components in Control Circuit Section by clicking on components displayed in Components Section.

Step 3: Establish the connections according to the control circuit diagram provided in Fig. (a).

Step 4: Verify the control circuit by clicking on the Check Connections 1 button.

Step 5: If Wrong Connections, click on the Delete Connections 1 button to delete connections and make the right connections.

Step 6: Once the Control Circuit is verified, click on the PLC to design the ladder logic.

Step 7: A new window will appear for the ladder logic. Design the ladder logic using the instructions tab on the PLC window.

Step 8: Once the ladder logic is verified, switch to the Power Circuit Section. Make the connections according to the Power Circuit diagram provided in Fig. (b).

Step 9: Click on the Check Connections 2 button to validate the Power Circuit.

Step 10: If Wrong Connections, click on the Delete Connections 2 button to delete connections and make the right connections.

Step 11: Once the Power Circuit is verified, switch on the Power Supplies & enable the Start Button by a clicking on them.

Step 12: To stop circuit click on the Stop button.

Step 13: To overload the current click on the ⚡ button which is located at the Overload relay.

Step 14: Click on the Print button to get a print of the webpage.

Step 15: Click on the Reset button to refresh the webpage.



Connections of Control and Power Circuit
Fig. 1 Connections of Control and Power Circuit