After the start button is pressed, the motor 1 run and the chemicals in the tank begin to mix. About Motor 1: When the stop button is pressed, or when the thermic relay (TR1) detects a fault or when the chemical tank empty, motor 1 will not run.
5 minutes after motor 1 starts, motor 2 will be activated automatically. When the stop button is pressed or when the thermal relay detects a malfunction or when the chemical runs out in the tank, the system will stop.
Use 2 fault (TR1, TR2) lamps (red) and 2 engine run lamps (green) in the circuit.
a- Draw the Power Circuit (15p)
b- Draw Control Circuit (40p) If above 2 conditions are correct, followings will be graded.
i. Drawing ability using cat or any program (15p) (Hand drawing Zero mark)
ii. Use of correct symbols given in the lecture (15p) (Different country standard symbols will not considered)
iii. Explanation of system operation (15p) (Use Microsoft word, Hand writing Zero mark)
Use the following procedure for a chemical mixing tank to design a control system(PLC Question)
Industry Code (NAICS) Industry Description 2007 Sales of U.S. Plants ($Million) 2007 Imports from All Countries ($million) 2007 Imports from China ($million) 2007 China Share of U.S. Market 1997 Average Hourly Wage of Production Workers ($) 311223 Other oilseed processing 1506.4 3235.4 15.7 10.18 311320 Chocolate & confectionery mfg from cacao beans 4383.5 2001.6 41.2 17.29 311340 Nonchocolate confectionery mfg 5590.7 1455.7 124.6 12.07 311411 Frozen fruit, juice, & vegetable mfg 10618.8 2268.1 99.4 10.22 311711 Seafood canning 978.0 1929.4...