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\nHow does a relay work? | Normally Open | Normally Closed | Steps towards learning Automation - 02\n

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\n\nPublisher:\n\nPractical Ninjas\n\n\n
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\nIn this episode, we will see construction and working of relays and the different types of relays such as Normally Open and Normally Closed.\n\nIt's relatively easy for anyone with an understanding of relay-type control wiring to program...\nIn this episode, we will see construction and working of relays and the different types of relays such as Normally Open and Normally Closed.\r
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It's relatively easy for anyone with an understanding of relay-type control wiring to program PLCs with little guidance.\r
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When current runs through the control circuit and energizes the coil, it creates a small magnetic field which pulls the arm of the switch towards the coil and completes the second circuit. Thus, the light glows. When the electromagnet is not energized, the spring pulls the armature away and the circuit is not complete. In that case, the light is off. These parts are safely held with the help of a spring. \r
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Now, when you use relays, you have to decide whether it should work as normally open or normally closed or in short active high or active low respectively. Often they are referred to as examine if closed (XIC) and examine if open (XIO). Normally open or normally closed relays depend upon the configuration of armature.\n
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Resource Details

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Media Length
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5:13
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Grade
12th - Higher Ed
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Subjects
STEM
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Media Type
Instructional Videos
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Source:
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\nPractical Ninjas\n\n
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Date
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2017
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Language
English
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Audiences
For Teacher Use
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Fine Print: Educational Use
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automation, plc, example, normally closed, live, power control, xic, examine if closed, iron core, ac control using relay, what is a plc, xio, armature, elektromagnet, siemens, programmable logic controllers, building blocks of plc, solenoid, automation using relay, normally open, amplifier, examine if open, socket, metal rod, free plc training, sensors, on off, relay, relay as amplifier, video, automation and control, mechanical relay, allen bradley, interview, really, letzt, omron, from, no, actuators, nc
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