Question: Connect the pneumatics ( 1 0 % ) and draw the physical ladder logic ( 1 0 % ) for the system below. Let solenoids
Connect the pneumatics and draw the physical ladder logic for the system below. Let solenoids ACand E retract their respective cylinders. The system is to operate as follows:
When START push button is pressed cylinder Cyl extends until limit switch SwA is made.
Then, cylinder extends until switch SwC is made.
When SwC is made cylinder Cylextends until switch SwB is made.
After that, all cylinders retract.
If SwB is not made within seconds from the time SwC is made, the three cylinders will retract and an alarm will sound. Use a RESET push button to reset the alarm. When finished, the operation can be started again by pressing START push button.
At the beginning, all of the cylinders are at their retracted positions. HINT: you may use NONC or doublethrow switches, relays, time delay relays etc. as you find fit.
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