Yaskawa 120 Series I/O Modules - Manual (Page 37)

3.1 Digital Input Module specifications
3-7
3
2) The following diagram shows the circuit configuration.
Connect power supplies of the same phase to the Common 1 and Common 2.
If power supplies of different phases are connected, overheating or fire may
occur.
Input 1
Input 8
Common 1
Input 9
Input 16
Common 2
200 VAC
200 VAC
Input signal
indicator
To CPU
Photocoupler
Internal circuits
CAUTION