Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 58, Problem 5SQ
What is the major advantage of the lighted “on” or “off” program entered into the program terminal?
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How many conductors are required to address eight devices? Do those devices need to connect with the I/O control device?
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Electric Motor Control
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- State two function of the following 1. A.L.U 2. control unit 3. Registerarrow_forward3) What is a field control station involves?A: Power connectionB: One or more network connectionsC: Connection port for programmingD: All of the abovearrow_forwardThe pointer moving across a scale in the speedo meter is an example for ___________ of the instrumentation system. a.Feed back element b.Sensing element c.Data presentation element d.Signal conditioning elementarrow_forward
- Briefly explained the function of the hold device in a digital control system.arrow_forwardA time-proportioning (PWM) controller with a DC output voltage of 35 volts will produce an average voltage of ____________________ volts if it is switched ON for 0.72 of the time. Note provide an answer to include two decimal places.arrow_forwardSolve it quickly pleasearrow_forward
- Convert the control circuit only, Figure 2111, from the wiring diagram to an elementary diagram. Include the limit switches (RLS, FLS) as operating in the control circuit.arrow_forwardA door needs to have a security system. The system is supposed to decide to open the door or to keep it closed by checking some conditions. The system should use a keypad and an IR receiver as inputs and one servo motor to move the lock of the door as an output.if the password is right or the right code(55)has been received by IR Receiver then the door should be open. Otherwise, the door should remain closed. To make the door open; turn servo to 90 degrees. To close the door, turn the servo motor to 0 degrees. After 20 seconds from unlocking the door, the door should be locked again. (i)Draw the circuit and connections you planned. (ii)Write the necessary code for the correct operation of the system.arrow_forwardA door needs to have a security system. The system is supposed to decide to open the door or to keep it closed by checking some conditions. The system should use a keypad and an IR receiver as inputs and one servo motor to move the lock of the door as an output. If the password is right or the right code (55) has been received by IR Receiver then the door should be open. Otherwise, the door should remain closed. To make the door open; turn servo to 90 degrees. To close the door, turn the servo motor to 0 degrees. After 20 seconds from unlocking the door, the door should be locked again. i) Draw the circuit and connections you planned. just like drawing on TinkerCad application) i） Write the necessary code for the correct operation of the system.arrow_forward
- How many wires are required for a two-wire control device?arrow_forwardHow is it possible for the miscroswitch to change contact position with such a small amount of movement of the activating arm?arrow_forwarda. What is the minimum number of 20-ampere small-appliance circuits required for a kitchen according to the Code? _______ b. How many are there in this kitchen? ______arrow_forward
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