Omron sysmac NX Series User Manual page 922

Appendices
Wiring
Si0
T0
S1
24 VDC (brown)
GND (blue)
Unit 4 (NX-SOD400)
So0
IOG
KM1
A-58
Unit 2 (NX-SIH400)
Si1 Si2
T1 T0
KM1
S2
KM2
S3
So1 So2
IOG IOG
KM2
S1: Emergency stop pushbutton
S2: Reset switch
S3: Safety light curtain
S4: Safety mat
KM1, KM2: Contactors
M: Motor
NX-series Safety Control Unit/Communication Control Unit User's Manual (Z395)
Unit 3 (NX-SIH400)
Si3 Si0
T1 T0
OSSD1 (green)
OSSD2 (white)
So3
IOG
KM1
KM2
M
Si1 Si2 Si3
T1 T0 T1
Blue White
Black Brown
White
Blue
S4
Brown
Black