Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
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Chapter 52, Problem 5RQ
When connecting TTL logic, why are inputs pulled high instead of low?
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Chapter 52 Solutions
Industrial Motor Control
Ch. 52 - In a relay circuit, what function is served by the...Ch. 52 - Prob. 2RQCh. 52 - What conditions of input must exist if an OR gate...Ch. 52 - What conditions of input must exist if an AND gate...Ch. 52 - When connecting TTL logic, why are inputs pulled...Ch. 52 - Prob. 6RQCh. 52 - Referring to Figure 52–12, what function does the...
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- I want you to draw a ladder logic diagram of a garage door to control it by PLC. In my case we have different inputs and outputs and all of them gotta be used in the diagram. I can perfectly interpret the diagram so no need to explain it, I will just require you to draw it. INPUTS : open push button ( OPB ) - close push button ( CPB ) - open limit switch ( OLS ) - close limit switch ( CLS ) - obstacle detection sensor ( ODS ) - safety sensor ( SS ) - emergency stop push button ( ESPB ) - reset button ( RB ) OUTPUTS : motor starts ( MS ) - motor stops ( MSTP ) - motor forward ( MF ) - motor reverse ( MR ) - Error display ( ER ) OPERATİNG MODES : automatic mode ( AM ) - manual mode ( MM ) NECESSARY TIMERS : T1 ( delay door movement after obstacle detection ) - T2 ( delay door movement after reversing ) Here is my excercise for today. Please I am requiring a good logic diagram taking into consideration all what was mentioned before. so to sum up, I want you to write a logic ladder diagram…arrow_forward1. A mixing vat has an inlet valve, an outlet valve, a mixing motor, and a single level detecting switch (Figure 1). Both valves are opened by solenoids. The level switch closes when the vat is full and stays closed until the vat is empty. Draw a PLC ladder logic diagram and provide the allocation list to do the following: a. When the start button is pushed, the inlet valve opens until the vat is full. b. The mixer motor comes on for 5 min. c. The outlet valve opens until the vat is empty. (closed) Level switch Motor Inlet valve Outlet valve Float Vat Figure 1arrow_forwardSápport Supp Suppórt Support 5 Types of External Connections (Pin, Ball in Socket (3D pin), Fix, Roller/Rocker, Sliding Support, Bearing) Question: Choose the type of External Connections for each image above and explain why?arrow_forward
- Reprogramming is possible in CNC (Computer numerical control) systems. Select one: O True Falsearrow_forwardWhat is an interrupt? define and explain how Transfer of Control via Interrupts?arrow_forwardQuestion 4 The symbol used for output device in PLC is Not yet answered O a. Marked out of 1.00 P Flag question Ob. Oc.arrow_forward
- Build a ladder logic diagram showing the timer delays.arrow_forwardWhy are NEMA symbols such as push buttons, float switches, or limit switches not used in programmable logic controller schematics?arrow_forwardMeans that data concerning the effects of the computers commands are fed back to the computer as an input signal.arrow_forward
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