Asked by: Shuyitechnology and computing computer peripherals
What is control relay module?
Last Updated: 2nd June, 2020
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Just so, what is control relay module in fire alarm system?
A control module is the output side. It activateswarning devices like a bell or horn strobe. It can also activaterelays connected to automatic door closers, elevatorcontrols, fire suppression systems,smoke ejectors, and the like.
Likewise, what is control relay? A control relay is an electrical component thatopens or closes a switch in order to allow current to flow througha conducting coil, with the coil not coming into direct contactwith the switch. Control relays are electromagnetic devicesthat typically control the power flow incircuits.
Likewise, what does a relay module do?
Introducing the Relay Module A relay is an electrically operated switch thatcan be turned on or off, letting the current go through or not, andcan be controlled with low voltages, like the 5V provided by theArduino pins.
How does relay module work?
Working Principle of Relay It works on the principle of an electromagneticattraction. When the circuit of the relay senses the faultcurrent, it energises the electromagnetic field which produces thetemporary magnetic field. This magnetic field moves therelay armature for opening or closing theconnections.