Omron NX-SID Series - Two-Hand Switches

A - 37
Appendix
NX-series Safety Control Unit User’s Manual (Z930)
A-3 Application Examples
A
A-3-6 Two-hand Switches
Motor M operates when two-hand control switches S11 and S12 are pressed at the same time.
A-3-6 Two-hand Switches
Application Overview
Safety category/PL Safety device Stop category Reset
Equivalent to 4/PLe Two-hand control switch 0 Auto
Wiring
Si0 Si1 Si2 Si3
T0 T1 T0 T1
S11
S12
Unit 2 (NX-SIH400)
KM1
KM2
S2
Si0 Si1
T0 T1
Si2 Si3
T0 T1
Unit 3 (NX-SIH400)
KM1 KM2
M
KM1
KM2
So0 So1 So2 So3
IOG
S11 and S12: Two-hand control switches
S2: Reset switch
KM1 and KM2: Contactors
M: Motor
Unit 4 (NX-SOD400)
IOG IOG IOG