Product Description
8-Way descriptio
Functio Test the existence of AC 220V
Output TTL level: Can be tested using MCU, voltage is 3-5V
The output can be connected to PLC 24V
Connectio
When connecting PLC input, THE COM terminal of PLC is connected to the 24V power supply, the input terminal is connected to the signal output S1-S8 of the board, and the optocoupler GND is connected to the negative pole of the power supply.
Blue terminal 5.0 connects 220V voltage and yellow pin signal output.
When 220V voltage is normal, output low level; When 220V power off, output high level.
Note:
After the module is powered on, do not touch any part of the white line frame on the board, because it is high voltage. Pay attention to electrical safety.