Specifications:
Voltage: DC 5V
Working current: <20mA
Frequency Range: 20Hz~400Hz
Output mode: output signal switching
Temperature range: -40°C ~ +85°C
Humidity: 0~95%R.H.
Size: 4.4x3.8cm/1.73x1.5"
1 * 5A 5V Current Protect Detection Module
VCC: positive working voltage
GND: negative voltage;
ON: Normally open, and COM is connected before the relay pulls in, and is not shorted after pulling in;
COM: Public terminal, relay common interface;
NC: Normally Closed End, NC and COM are shorted before the relay pulls in, and disconnected after pulling.
The overcurrent protection point is set by adjusting Potentiometer The clockwise adjustment reduces the detection current. The method is below:
PASS wire under test, through current transformer connect VCC and GND to DC1 2V; Adjust the potentiometer, when the sound of the relay pull-in is heard (use a multimeter to measure whether COM and NO are connected, if connected relay has been pulled finger), then reduce or cut off the current flowing through the conductor under test. This time, that means the overcurrent Protection Point has been found.
If the relay does not launch when the current flowing through the conductor under test is reduced or cut off, it means that the potentiometer Must be able to find the overcurrent protection point.