1-Channel 220V AC optocoupler detection module.

• Function: can be used to detect the presence of 220V AC

Output TTL level can be detected with the microcontroller. The power supply can be 3-5V

Can also access PLC24V level. Then the PLC input terminal of the PLC COM power supply 24V input termination of the board signal output OUT, optocoupler board GND power negative.

Green 2P 5.0 terminal connected to 220V voltage, 3P terminal connected to the microcontroller input.

NOTES

• When the power module in the power of the board after the white wire frame can not touch any device because it is high voltage.