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19 Cards in this Set
- Front
- Back
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Defined as an electromagnetically actuated switch |
Relays |
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controls one or more key groups (switches on or off) to operate a switch operating at high power |
Relay |
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is an electrical component that can control the flow of electricity in a circuit. |
Relay |
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the electromagnetic coil is connected in series with the power source, external contact, relay contact. |
Relay Circuit |
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is a device that detects and responds to some type of input from the physical environment. |
Sensor |
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The sensors are further classified on |
basis of physical parameters |
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A three-wire sensor has 3 wires present: |
two power wires and one load wire. |
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It is the closeness of measurement to the true value. |
Accuracy |
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This are devices that converts energy from one form to another. |
Transducer |
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It is configured to detect when a system's element has moved to a certain position. |
Limit switch |
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Input devices that detects or measure a physical quantity. |
Sensor |
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An electronic proximity sensor, which detects metallic objects without touching them. |
Inductive proximity sensors |
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Advantages of PLCs |
Less wiring Easier and faster to make changes |
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Plc origin |
Basta gi replace sa relay |
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Use to mix two liquids |
Tank |
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Provides the voltage needed to run the primary PLC components |
Power supply |
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Provides signal conversion and isolation between the internal logic |
I/O modules |
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Provide intelligence to command and govern the activities of the entire PLC systems |
Processor |
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Use to enter the desired program |
Programming device |
