In this episode, we will see construction and working of relays and the different types of relays such as Normally Open and Normally Closed.
It's relatively easy for anyone with an understanding of relay-type control wiring to program PLCs with little guidance.
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.
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.
We have an exciting news for everyone! We have developed a course on PLC basics in collaboration with Internshala where you can get good discounts using the coupon code ISRP16947850. Go check it out here-
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Link to the #1 video in the series:
https://youtu.be/rFs0zwx_s9gIntroduction to PLC | Programmable logic controllers | Steps towards learning Automation - 01
Link to the #2 video in the series:
https://youtu.be/fmEmvSazqq8How does a relay work? | Normally Open | Normally Closed | Steps towards learning Automation - 02
Link to the #3 video in the series:
https://youtu.be/6sQt1N0nBeEConcept of Sinking and Sourcing in PLC | Steps towards learning Automation - 03
Link to the #4 video in the series:
https://youtu.be/zsajTNtxfAEPLC Ladder programming #1 | NO NC contacts | AND gate logic | Steps towards learning Automation - 04
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Link to the video on Derived gates:
https://youtu.be/wGilEPBfcT8Link to our video on Boolean algebra
https://youtu.be/V4QRxFruzk8Link to previous videos on Gates:
Basic gates
https://youtu.be/-6w-MHjwzT0Derived gates
https://youtu.be/wGilEPBfcT8Mathematical operations in digital systems
Addition and Subtraction
https://youtu.be/7gmXjdDE1DQMultiplication and Division
https://youtu.be/2lemxMYsJXUConstructing gates
Using NAND
https://youtu.be/okZBqPd1xd4Using NOR
https://youtu.be/auh8NRN0wR0Link to the video:
https://youtu.be/sVc-XIysw0con Double Beam Spectrometer
Link to the video:
https://youtu.be/MKFjGIrRKt4on Basics of UV-Vis spectroscopy in Analytical Instrumentation
Link to the video:
https://youtu.be/pxDbEkspXs0 on Filters and Monochromators, Gratings used in Analytical Instrumentation
Link to the video:
https://youtu.be/YI17AmrR5Iwon Detectors used in Analytical Instrumentation:
Link to the video:
https://youtu.be/J8Bqyqjlqy0on Single Beam Photometer used in Analytical Instrumentation
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Check our playlist on Digital Electronics:
https://www.youtube.com/playlist?list=PLsaRQCHmdZTBd8xnz_XqhHYdFGlnDapC4Check our playlist on Analytical Instrumentation:
https://www.youtube.com/playlist?list=PLsaRQCHmdZTAuxG5X1G9W7zl_p3uwEmY0-------------------------------------------------------------------------------------------
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