Omron NE1A-SCPU01 - 07-2009 - Page 300

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Appendix A
A-1-2 Safety Gate Application (1)
Wiring Example
Note (1) Connect a 24-VDC power supply to terminals V0 and G0 (power supply terminals for internal
circuits).
(2) This example shows the NE1A-SCPU01(-V1)(-EIP) Controller’s terminal layout.
Timing Diagram
Safety
category
Safety detection
device
Stop category Reset method
Equivalent to 4 Safety limit switch 0 Auto reset
V1
G1 T0
T1
I1
I0
I3
I5
I2
I4
I6
I7
T2
T3
E1
S1
O1
O0
V2 G2
O3 O5
O2 O4 O6
O7
E2
KM1
KM2
KM1KM2
I9
I8
I11
I13
I10
I12
I14
I15
KM1-NC
KM2-NC
S2
Open
M
E1 and E2: 24-VDC power supplies
S1: Safety limit switch
S2: Limit switch (normal open contact)
KM1 and KM2: Contactors
M: Motor
S1
S2
KM1
KM2
EDM
Feedback
Safety gate opened. Safety gate closed.
Idle to Run
T
EDM
T
EDM
T
EDM