AC 220V Optocoupler Isolation Module AC Optocoupler Detection Module It is mainly used for the detection of 220V AC It can be powered by 3-5V or PLC 24V Level One/Three/Eight Channel Optional, please choose the channel you need freely. Description:
It can detect if the of 220V AC exists or not. The output TTL level can be detected by a microcontroller. Power supply can be 3-5V can also be connected to PLC 24V level. When connecting to the PLC input terminal, the COM terminal of the PLC is connected to the power supply 24V input terminal and the signal output OUT of this board is connected, and the GND on the optocoupler board is connected to the negative pole of the power supply. The green 2P 5.0 terminal is connected to 220V voltage, and the 3P terminal is connected to the input of the microcontroller.
Safety warning:
When the power is on, please do not touch any parts in the white frame on this board because of it is high voltage. Pay attention to the electricity safety.
Package included:
1 x AC 220V Optocoupler Module (1/3/8 Channel Optional)