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Make a circuit diagram: Create a seal in circuit with three NO pushbuttons, three NC pushbuttons,...

Make a circuit diagram: Create a seal in circuit with three NO pushbuttons, three NC pushbuttons, two limit switches normally closed and a relay which energizes a motor starter. The limit switches when open will stop the motor.

Engineering   Electrical-Engineering   
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In this diagram two Normally Closed limit switch L1 and L2 are used. PB1, PB2, PB3 are normally closed push buttons and PB4, PB5, PB6 are normally open push buttons. All the switches are connected to actuate a relay "R". This relay will operate motor "M" through its normally open contact R(NO). All the push buttons are connected in such a way that by pressing any one NO push button the motor will start and by pressing any one NC push button that motor will stop. If any of the limit switches will open then the motor will stop. This circuit does not have any latching mechanism means the motor will not operate if the NO push buttons are released.

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