Omron G9SX - Cross Fault Detection

2. Functions, Wiring and Settings
G9SX
USER'S GUIDE
63
Wiring and SetupSection 3
2-4 Cross Fault Detection
The cross fault detection setting for the safety input is made using the cross fault detection input (terminals Y1 and
Y2).
If a fault is detected, the following will occur.
1. The safety outputs and logical AND outputs will be locked out.
2. The LED error indicator will be lit.
3. The error output (auxiliary output) will turn ON.
For wiring, refer to the following description.
(1 ) Cross Fault between T11-T12 and T21-T22
Cross fault detection mode Cross fault detection input
ON Open
OFF Connect to +24 V
Cross fault detection input Safety input to be monitored Function summary
Terminal Y1 Terminals T11-T12 and T21-T22 Detects cross faults across T11-T12 and T21-T22
Terminal Y2 Terminals T61-T62 and T71-T72 Detect cross faults in T61-T62 and T71-T72
Cross fault
detection
Wiring
OFF
Corresponds to
Safety Category 2
Corresponds to
Safety Category 3
ON
Corresponds to
Safety Category 4
Y1 T22T21T12T11
S1
+24 V
+24 V
Y1 T22T21T12T11
S1
+24 V
+24 V +24 V
NC
Y1
T22T21T12T11
S1