The light bulb has one of the 120v wire spliced to connect the end connected to the power plug to the com common pin of the relay module and the one going to the lamp is connected to the nc normally closed pin. Nc normally closed compole is connected to this when the relay coil is not magnetized.
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How to connect relay. And depending on what type of relay you are connecting there are different numbers of pins and different pin configurations for each relay. The no normally open connection of the relay is not connected until the relay turns on. The relays switch connections are usually labeled com pole nc and no. When a relay is off the common is connected to the nc normally closed. Compole common nc and no always connect to this it is the moving part of the switch. Mechanical relays create a clicking sound that indicates movement o the.
The identification of a typical relays pinouts may be done in the following manner. Our relay logic guide helps demonstrate the best ways to connect ncd relay controllers in real world control applications. When the relay turns on the common move from nc to no. 1 position the multimeter in the ohms range preferably in the 1k range. 3 next follow the same. 2 begin by connecting the meter prods to any of the two pins of the relay randomly until you find the pins which.
Connections we connect the ir motion sensor out to pin 4 and the relay in1 to pin 8. The com common connection of a relay is the part of the relay that moves. In order to know how to connect a relay to a circuit you must be familiar with all the pin terminals of the relay. Welcome to my channel how to connect npn sensor to relay photoelectric sensor connection mo7499642400 thanks for watching my video covid19 photoelectric npnsensor pnpsensor sensor.
Gallery of How To Connect Relay
