5A AC Current Detection Sensor Module
The LC 5A AC Current Detection Sensor Module utilizes a current transformer to gather the AC signal and produce a relay over-current signal output ranging from 0-5A. The relay is activated in the event of an over-current and deactivated when there is no over-current. With three available ports (COM, NC, NO), users can easily control the external circuit’s on/off function for effective over-current protection.
- One of the primary components of this system are its functions. 5A AC Current Detection Sensor Module features serve as important tools for completing various tasks within the program.
- The resolution of current detection can modify resistance parameters.
- Switching signal output for over-current detection;
- The critical point for adjusting the over-current signal can be modified.
- Adjusting the potentiometer to set the overcurrent protection point decreases the detection current in a clockwise direction.
Using bellows:
After obtaining the wire’s measurement through the current transformer, proceed to connect VCC and GND to a DC12V power supply.
Once the sound of the relay pulling can be heard, use a multimeter to check if it has been activated by testing its connection to the COM and NO terminals. If so, adjust the potentiometer accordingly to reduce or completely stop the current flowing through the wire being tested. Keep an eye on the relay – if it releases, it means that the over-current protection point has been reached. This can also be checked by measuring its connection to the COM and NC terminals.
Upon reducing or stopping the current in the wire, the relay will remain active and it will be necessary to further adjust the potentiometer in order to determine the over-current protection threshold.
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