SKILL $5$

DESIGN A CONTROL CIRCUIT TO PERFORM TIME$-$DRIVEN SEQUENCING

PROCEDURE OVERVIEW

In this procedure, you will design, connect and operate a circuit to perform time$-$driven sequencing on a cylinder.

Draw a ladder diagram for a time$-$driven sequence circuit that uses a timer relay instead of a limit switch to determine the desired full stroke of a cylinder.

When the circuit is not operating, the red indicator light should be on$.$

A pushbutton should be used to start the sequence.

When the circuit is activated, the green light should come on and the cylinder should extend until the timer times out. Once this occurs, the cylinder should retract.

The circuit should include a stop pushbutton.

Draw your circuit design on a separate piece of paper.