Datasheet
G9SX-NS
29
Example 2: Connection with D40A
Note: The PL evaluation result on this connection example applies to safety functions related to the D40A Non-Contact Door Switch. The above
PL is only the evaluation result of the example. The PL must be evaluated in an actual application by the customer after confirming the usage
conditions.
● Application Overview
• The power supply to the motor M1 and M2 is turned OFF immediately when the emergency stop switch S1 is pressed.
• The power supply to the Motor M1 is kept OFF until the reset switch S2 is pressed while the emergency stop switch S1 is released.
• The power supply to the motor M2 is turned OFF immediately when the S3 detects that the guard is opened.
• The power supply to the motor M2 is kept OFF until the reset switch S1 is pressed while the guard is closed and the emergency stop switch S1
is released.
Highest achievable
PL/safety category
Model Stop category Reset
PLd/3 equivalent
Emergency Stop Switch A165E/A22E
Non-contact Door Switch D40A
Flexible Safety Unit G9SX-BC202-@
Non-contact Door Switch Controller G9SX-NS202-@
0
Emergency Stop Switch: Manual
Non-contact Door Switch: Auto
KM2
KM1
S2
+24 V
KM4
KM3
+24 V+24 V
OFF
AND
PLC etc.
PLC etc.
G9SX-NS202-@ (Unit 2)
Control circuit
G9SX-BC202-@
(Unit 1)
Control circuit
S3
S14 S24
A2
S14 S24
A2 L1 L2 X1 X2
A1 D1 D3 D4
T31 T32 T33
T41 T42
D2
L1 X1 X2
Non-contact
Door Switch
Actuator
Feedback Loop
Feedback Loop
KM1 KM2
KM3 KM4
Guard
M1
KM1
KM2
M2
KM3
KM4
A1
T11 T12 T21 T22 T31 T32 T33
Y1
S1
Emergency
Stop Switch
Black
Brown
White
Blue
+24V
S3: Non-contact Door Switch (D40A)
KM3, KM4: Magnetic contactor
M2: Motor
Note: For details on Non-contact Door Switch wiring, refer to page 19 or to the Instruction Sheet.
Emergency stop
switch operation
G9SX-BC202-@ (Unit 1)
G9SX-NS202-@ (Unit 2)
Reset switch S2
KM1, KM2 N.O. contact
Unit 1 S14, S24
Logical AND output L1
Rotation of motor M1
Emergency stop switch S1
KM3, KM4 N.O. contact
Logical AND input T41
Rotation of motor M2
Unit 2 S14, S24
Non-contact Door Switch S3
Guard closesGuard opens
Timing chart
S1: Emergency Stop Switch
S2: Reset Switch
KM1, KM2: Magnetic contactor
M1: Motor