Omron sysmac NX Series User Manual page 897

Safety category/PL
Equivalent to 4/PLe
(Safety Door)
M1 stops when safety door 1 (S3, S4) is opened.
M2 stops when safety door 2 (S5, S6) is opened.
Both M1 and M2 stop when the emergency stop pushbutton S1 is pressed.
S3, S4 S5, S6
Safety Safety
door 1 door 2
M1 Reset switch
S2
Emergency stop pushbutton
S1
Wiring
Unit 2 (NX-SIH400)
Si0
T0
S1
Unit 3 (NX-SIH400)
Si0 Si1
T0 T1
S4
S3
Open
NX-series Safety Control Unit/Communication Control Unit User's Manual (Z395)
Safety device
Safety limit switches 1 and 2
Emergency stop pushbutton
M2
Si1 Si2 Si3
T1 T0 T1
S2
Si3
Si2
T0 T1
S6
S5
Open
Appendices
Stop category Reset
0 Auto
0 Manual
A
A-33