Question 2 (40% Fig. 1 - Double Acting Cyliners with reed position sensors and Control Box Cylinder A a0 al Cylinder B b
Posted: Tue Apr 26, 2022 4:03 pm
- Question 2 40 Fig 1 Double Acting Cyliners With Reed Position Sensors And Control Box Cylinder A A0 Al Cylinder B B 1 (279.59 KiB) Viewed 41 times
Power Terminal No. X40 24V (-) Description a0 - Cylinder A Retraction (NO) a1 - Cylinder A Extension (NO) bo - Cylinder B Retraction (NO) X41 24V (-) X42 24V (-) X43 b1 - Cylinder B Extension (NO) 24V (-) X44 X45 24V(-) 24V-) 24V(-) 24V(-) X46 PBO (NO) PB1 (NO) PB2 (NO) PB3 (NO) 24V(+) Bulb (Red) Bulb (Yellow) X47 COM Y40 Y41 24V (-) 24V (-) Y42 Bulb (Green) 24V-) Y43 Solenoid A+ 24V (-) Y44 Solenoid A- 24V (-) Y45 Solenoid B+ 24V-) Y46 Solenoid B- COM 24V(+) Table 1-PLC NAIS FP-0 I/O Assignment Table
Step Description 1. Initial State: Homing 2.1 User presses Button PBO (X44) to RESET counter and HOME cylinders to retracted states. i.e. Sensors a0 (X40) and bo (X42) are activated. 2.2 All light bulbs turn off 2. User presses Button PB1 (X45) Linear 2.3 Green Bulb (Y42) turns ON Actuator 2.4 Cylinder A extends (Y43) 2.5 Sensor al (X41) is activated 2.6 Cylinder A retracts (Y44) 2.7 Sensor a0 (X40) is activated 2.8 Cylinder B extends (Y45) 2.9 Sensor b1 (X43) is activated 2.10 Cylinder B retracts (Y46) 2.11 Sensor bo (X42) is activated 2.12 Repeat the cycle (Steps 2.4 -2.11) 3 more times 2.13 Green Bulb (Y42) turns OFF and Red Bulb (Y40) turns ON Table 2 - Requirement of Working Sequence Q.2 Refer to the information (Figure 1, Figure 2, Figure 3, Table 1, Table2), i. Group the motion sequence by the Cascade method. Design and write the NAIS FP-0 PLC ladder diagram to do the working sequence, which is mentioned in Table 2. (35%) ii. Explain in details the design principle of your PLC program. (5%)