Need help with designing and test a PLC-controlled pneumatic system that conveys manufactured parts and loads them on a packing machine. I am attaching a file with all the requirement for this project.
Detailed system operation is as follows:
• Initially, both cylinders are retracted and the RUN lamp is off.
• Depressing a START pushbutton causes the RUN lamp to turn on.
• When a part arrives on the lift cylinder, it activates photoelectric switch PE1. This
causes the lift cylinder to extend and raise the part, as shown in Figure 11-1 (b).
As the lifted part moves away from photoelectric switch PE1, the switch
deactivates but this does not affect the operation of the system.
• When the lift cylinder is fully extended, it stops, while the load cylinder extends
and pushes the part onto the packing machine, as shown in figure 11-1 (c).
• Both cylinders retract when the load cylinder becomes fully extended.
• When 5 parts have been pushed onto the packing machine, the system stops,
while the PACK PARTS lamp turns on to inform the operator that the parts are
ready to be packed. The system can then be restarted by depressing the RESET
pushbutton, which turns off the PACK PARTS lamp, and then depressing the
START pushbutton.
• Depressing the STOP pushbutton at any step in the process causes both
cylinders to retract. This also causes the RUN lamp to turn off. The next time the
START pushbutton is depressed, the counting of the loaded parts will restart from
the value attained when the system was stopped.
Detailed system operation is as follows:
• Initially, both cylinders are retracted and the RUN lamp is off.
• Depressing a START pushbutton causes the RUN lamp to turn on.
• When a part arrives on the lift cylinder, it activates photoelectric switch PE1. This
causes the lift cylinder to extend and raise the part, as shown in Figure 11-1 (b).
As the lifted part moves away from photoelectric switch PE1, the switch
deactivates but this does not affect the operation of the system.
• When the lift cylinder is fully extended, it stops, while the load cylinder extends
and pushes the part onto the packing machine, as shown in figure 11-1 (c).
• Both cylinders retract when the load cylinder becomes fully extended.
• When 5 parts have been pushed onto the packing machine, the system stops,
while the PACK PARTS lamp turns on to inform the operator that the parts are
ready to be packed. The system can then be restarted by depressing the RESET
pushbutton, which turns off the PACK PARTS lamp, and then depressing the
START pushbutton.
• Depressing the STOP pushbutton at any step in the process causes both
cylinders to retract. This also causes the RUN lamp to turn off. The next time the
START pushbutton is depressed, the counting of the loaded parts will restart from
the value attained when the system was stopped.