10 Flexible Safety Unit G9SX
■Wiring of Inputs and Outputs
Signal name Terminal name Description of operation Wiring
Power supply input A1, A2 The input terminals for power supply.
Connect the power source to the A1 and A2
terminals.
Connect the power supply plus (24 VDC) to the A1
terminal.
Connect the power supply minus (GND) to the A2
terminal.
Safety input 1 T11, T12 To set the safety outputs in the ON state, the HIGH
state signals must be input to both safety input 1 and
safety input 2. Otherwise the safety outputs cannot
be in the ON state.
Corresponds to
Safety Category
2
Safety input 2 T21, T22 Corresponds to
Safety Category
3
Corresponds to
Safety Category
4
Feedback/reset input T31, T32, T33 To set the safety outputs in the ON state, the ON
state signal must be input to T33.
Otherwise the safety outputs cannot be in the ON
state.
Auto reset
To set the safety outputs in the ON state, the signal
input to T32 must change from the OFF state to the
ON state, and then to the OFF state. Otherwise the
safety outputs cannot be in the ON state.
Manual reset
Logical AND
connection input
T41, T42,
T51, T52
A logical AND connection means that one unit (Unit
A) outputs a safety signal “a” to a subsequent unit
(Unit B) and Unit B calculates the logical
multiplication (AND) (i.e., outputs the AND) of the
signal “a” and safety signal “b”, which is input to Unit
B.
Thereby the logic of the safety output of Unit B is “a”
AND “b”. (An AND of inputs “a” and “b” is output.)
To set the safety outputs of the subsequent Unit in
the ON state, its logical AND connection preset
switch must be set to AND (enable) and the HIGH
state signal must be input to T41 of the subsequent
unit.
Cross fault detection
input
Y1 Selects the mode for the failure detecting (cross fault
detecting) function for the safety inputs of G9SX
corresponding to the connection of the cross fault
detection input.
Keep Y1 open when using T11, T21. (Wiring
corresponding to category 4)
Connect Y1 to 24 VDC when not using T11, T21.
(Wiring corresponding to category 2 or 3, or when
connecting safety sensors)
Instantaneous safety
output
S14, S24, S34 Turns ON/OFF according to the state of the safety
inputs, feedback/reset inputs, and logical AND
connection inputs.
During OFF-delay state, the Instantaneous safety
outputs are not able to turn ON.
Keep these outputs open when not used.
OFF-delayed safety
output
S44, S54 OFF-delayed safety outputs.
The OFF-delay time is set by the OFF-delay preset
switch.
When the delay time is set to zero, these outputs can
be used as non-delay outputs.
Keep these outputs open when not used.
Logical connection
output
L1, L2 Outputs a signal of the same logic as the
instantaneous safety outputs.
Keep these outputs open when not used.
Auxiliary monitor
output
X1 Outputs a signal of the same logic as the
instantaneous safety outputs
Keep these outputs open when not used.
Auxiliary error output X2 Outputs when the error indicator is lit or blinking. Keep these outputs open when not used.
T11 T12 T21 T22
Y1
+24 V
+24 V
T11 T12 T21 T22
Y1
+24 V +24 V
+24 V
T11 T12 T21 T22
Y1
NC
Feedback loop
KM
+24 V
T31 T33T32
Feedback loop
KM +24 V
T31 T33T32
Reset
Switch
G9SX-BC202 or
G9SX-AD322-T
L1
A2
G9SX-AD322-T
L1
T41 T42
A2
A2
G9SX-AD322-T
Logical AND connection sig. (1st layer)
Next unit (4 unit max.)
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