Omron NX-SL5500 - Page 545

Safety category/PL Safety device Stop category Reset
Equivalent to 4/PLe
(Safety Door)
Safety limit switches 1 and 2 0 Auto
Emergency stop pushbutton 0 Manual
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.
S1
S5, S6
S3, S4
S2
Safety
door 1
Safety
door 2
M1
Reset switch
Emergency stop pushbutton
M2
Wiring
S1
S2
Si0 Si1 Si2
Si3
T0
T1 T0 T1
Unit 2 (NX-SIH400)
Open
Open
Si0
Si1 Si2
Si3
T0
T1
T0 T1
S3
S4
S5
S6
Unit 3 (NX-SIH400)
Appendices
A - 33
NX-series Safety Control Unit User's Manual (Z930)
A-3 Application Examples
A
A-3-2 Safety Doors