10
G9SX
Wiring of Inputs and Outputs
Connecting Safety Sensors and the G9SX
1. When connecting safety sensors to the G9SX, the Y1 terminal must be connected to 24 VDC.
The G9SX will detect a connection error, if the Y1 terminal is open.
2. In many cases, safety sensor outputs include an OFF-shot pulse for self diagnosis.
The following condition of test pulse is applicable as safety inputs for the G9SX.
•OFF-shot pulse width of the sensor, during the ON-state: 500 μs max.
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 ON
state signals must be input to both safety input 1 and
safety input 2. Otherwise the safety outputs cannot
be in the ON state.
Using 1 safety input
channel
Safety input 2 T21, T22
Using 2 safety input
channels (cross
fault detection OFF)
Using 2 safety input
channels (cross
fault detection ON)
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.
Y1 connection varies depending on whether T11 and
T21 are used or not. Refer to wiring of the safety input
1 and 2.
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 instantaneous safety outputs.
Keep these outputs open when not used.
Logical AND
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.)
Next unit (5 layers max.)
T41 T42
G9SX-AD322-T
L1
T41 T42
Logical AND connection sig. (2nd layer)
Next unit (4 unit max.)
Input b
Input a
Output (a)
Output (a&b)
Unit B
Unit A
