Category Archives: ECT 284

ECT 284 Week 1 Lab Relay Pin-out Determination Latest Work

ECT 284 Week 1 Lab Relay Pin-out Determination Latest Work

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ECT 284 Week 1 Lab Relay Pin-out Determination Latest Work

Relay Pin-out Determination

Objective

The objective of this lab exercise is to identify the pin-out of a typical electromechanical relay.

Parts Needed

1.Relay – 12V DC Coil, DPDT

2.Breadboard

3.Wire, wire cutter, and wire stripper

4.Variable Power supply

5.DMM

ECT 284 Week 2 Homework Latest Work

ECT 284 Week 2 Homework Latest Work

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ECT 284 Week 2 Homework Latest Work

Chapter 2, p. 49: Problems 1, 4, and 5

1. A discrete 120 V ac output module is to be used to control a 230 V dc solenoid valve. Draw a diagram showing how this could be accomplished using an interposing relay.

4. Create a typical five-digit address (according to Fig 2-4) for each of the following:

5. Assume the triac of an ac output module fails in the shorted state. How would this affect the device connected to this output?

 

ECT 284 Week 3 Quiz Latest Work

ECT 284 Week 3 Quiz Latest Work

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ECT 284 Week 3 Quiz Latest Work

2. (TCO 3) The status of I1, I2, and I3 is given in each of the following ladder logic programs. Check all correct statements.

3. (TCO 3) Based on the following ladder logic program (Remember, these are PLC instructions.), check all correct answers.

4. (TCO 3) Based on the following ladder logic program (Remember, these are PLC instructions.), check all correct answers.

6. (TCO 3) A ladder logic program and the associated physical input/output components are given below. Without depressing any push button and considering total darkness, which statement is true?

7. (TCO 3) A ladder logic program and the associated physical components are given below. The motor is running. The push button is not depressed. Check all correct answers

8. (TCO 3) Which Boolean expression represents the given logic circuit?

ECT 284 Week 4 Homework Latest Work

ECT 284 Week 4 Homework Latest Work

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ECT 284 Week 4 Homework Latest Work

Chapter 7

3. Study the ladder logic program in Figure 7-32 on page 196, and answer the questions that follow:

6.You have a machine that cycles on and off during its operation. You need to keep a record of its total run time for maintenance purposes. Which timer would accomplish this?

Chapter 8

1.Study the ladder logic program in Figure 8-35, and answer the questions that follow:

3.Study the ladder logic ladder program in Figure 8-37, and answer the questions that follow:

8.Write a program to implement the process illustrated in Figure 8-39. An up-counter must be programmed as part of a batch-counting operation to sort parts automatically for quality control. The counter is installed to divert 1 part out of every 1000 for quality control or inspection purposes. The circuit operates as follows

ECT 284 Week 6 Homework Latest Work

ECT 284 Week 6 Homework Latest Work

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 ECT 284 Week 6 Homework Latest Work

1. Give an example of an open-loop control system. Explain why the system is open-loop, and identify the controller and final control element.

· 2. Give an example of a closed-loop control system. Explain why the system is closed-loop, and identify the sensor, controller, and final control element

· 7. Describe the advantages of a 4- to 20-mA current loop as an input signal compared to a 0-to 5-V input signal

ECT 284 Week 6 iLab Garage Door Simulation Latest Work

ECT 284 Week 6 iLab Garage Door Simulation Latest Work

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ECT 284 Week 6 iLab Garage Door Simulation Latest Work

1.With reference to instructions given in step 5 complete the following:

2.Briefly describe the operation of each rung in the ladder logic program. Submit the worksheet and all attachments to week 6 dropbox.

ECT 284 Week 7 Question 1 Latest Work

ECT 284 Week 7 Question 1 Latest Work

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ECT 284 Week 7 Question 1 Latest Work

1.What NEMA (National Electrical Manufactures Association) enclosure is recommended for a PLC?

2. List advantages of mounting the PLC within an enclosure?

ECT 284 Week 7 Question 6 Latest Work

ECT 284 Week 7 Question 6 Latest Work

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ECT 284 Week 7 Question 6 Latest Work

4. Refer to module wiring diagram below for the following questions.