Yaskawa 120 Series I/O Modules - Manual (Page 157)

4 Analog I/O Specifications
4.1.2 Analog Input Modules (0 to 10 V, 4 channels)
4-10
3) The following diagram shows the circuit configuration.
Differential signal source Multiplexer
Differential signal source
Shield 1
Status
display
Photocoupler
Shield 2
Shield 3
Shield 4
Insulated
DC/DC
converter
0 V (analog)
0 to 10 V
0 to 10 V
Differential signal source
Differential signal source
0 to 10 V
0 to 10 V
Internal circuits A/D converter