Description
1 way 220V AC optocoupler detection module:Function: can be used to detect the presence of 220V ACThe output TTL level can be detected by a single-chip microcomputer. The power supply can be 3-5VCan also be connected to PLC24V levelWhen connecting to the PLC input terminal, the PLC's COM terminal is connected to the power supply 24V input terminal is connected to the signal output OUT of this board, and the GND on the optocoupler board is connected to the negative electrode of the power supply.Green 2P 5.0 terminal connected to 220V voltageThe 3P terminal is connected to the MCU input.Board size 73mm X15mm
Safety warning:In practical use, after the module is powered on, do not touch any components in the white wire frame on the board.. Because it is high voltage. Pay attention to the safety of electricity.
3 way description:1. Function: Test whether AC 220V exists; when there is 220V, the optocoupler can be grounded; otherwise, it will not conduct2. Output high/low level: can be directly connected to the SCM IO interface for testing, the voltage is 3-5V3. Adapt to PLC connection, compatible with almost all PLC inputs
8 way description:Function: test whether AC 220V existsOutput TTL level: MCU can be used for testing, the voltage is 3-5VOutput can be connected to PLC 24V
Wiring:When connecting the PLC input, the COM terminal of the PLC is connected to the 24V power supply, the input end 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.The blue 5.0 terminal is connected to 220V voltage, and the yellow pin is signal output.When the 220V voltage is normal, the output is low level; when the 220V power is off, the output is high level.Note:After the module is powered on, do not touch any part of the white wire frame on the board, because it is high voltage. Pay attention to electrical safety.
Package included:
1 x 220V AC optocoupler module ( 1/3/8 Way option)
