Omron NX-SID Series - Emergency Stop Pushbutton Switches; A-3 Application Examples

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Appendix
NX-series Safety Control Unit User’s Manual (Z930)
A-3 Application Examples
A
A-3-1 Emergency Stop Pushbutton Switches
A-3 Application Examples
These examples show safety systems that use Safety Control Units.
Refer to the NX-series Safety Control Unit Instructions Reference Manual (Cat. No. Z931) for details on
the instructions that are used in each example.
Motor M stops when emergency stop pushbutton S1 is pressed.
A-3-1 Emergency Stop Pushbutton Switches
Application Overview
Safety category/PL Safety device Stop category Reset
Equivalent to 4/PLe Emergency stop pushbutton 0 Manual
Wiring
Unit 2 (NX-SIH400) Unit 3 (NX-SOD400)
S1: Emergency stop pushbutton
S2: Reset switch
KM1 and KM2: Contactors
M: Motor
KM1 KM2
M
KM1
KM2
KM1
KM2
S1
S2
Si0
Si1
Si2
Si3
T0
T1 T0
T1
So0
So1
So2
So3
IOG IOG IOG IOG