Omron D40B Datasheet page 7

Wiring Example for 1 Sensor and 2 Contactors (with D40B-J2):
Auto-reset
The configuration in this example is for auto-reset and contactor monitoring.
Fuse
Guard door
Note: The circuit in this example is equivalent to a Category 3 circuit.
*This example applies to Standard or Elongated Sensors. The wire colors for the High-temperature Type Sensors are different. Refer to Sensor and Controller
Connection Examples on page 10.
Wiring Example for 3 Sensors and 2 Contactors (with D40B-J2):
Auto-reset
The configuration in this example is for auto-reset and contactor monitoring.
Fuse
Blue
Yellow
Guard door
Green
Red
Blue
Yellow
Guard door Green
Red
Blue
Yellow
Guard door
Green
Red
Note 1: The circuit in this example is equivalent to a Category 3 circuit.
Note 2: If two or more Sensors are connected to one Controller, all of the guard doors must open and close independently. If two or more doors open and close at
the same time, it is possible that a fault may not be detected.
Note 3: Up to six Sensors can be connected to a single Controller.
*This example applies to Standard or Elongated Sensors. The wire colors for the High-temperature Type Sensors are different. Refer to Sensor and Controller
Connection Examples on page 10.
Manual Start
If manual start is required, insert start switch S1 between X1 and X2
as shown below. Monitored start is not possible.
Start switch S1
F3SL
Blue*
Yellow*
2 1 A1 + 13 23
D40B-J2
Controller
3 4 A2 − X1 X2
14 24
Green*
KM1
Red*
KM2
KM1 KM2
See Manual
Start on page 9.
Blue*
Yellow*
2 1 A1 + 13 23
D40B-J2
Controller
3 4 A2 − X1 X2
14 24
KM1
Green*
KM2
KM1 KM2
Red*
See Manual
Start below.
X1 X2
KM1
KM2
Operation Flowchart
31
Switch: NO contact
KM1
Switch: NC contact
32
KM2
D40B-J2 safety output
KM1, KM2: NC contact
KM1, KM2: NO contact
M
Operation Flowchart
31
Switch: NO contact
KM1
Switch: NC contact
32
KM2 D40B-J2 safety output
KM1, KM2: NC contact
KM1, KM2: NO contact
M
Operation Flowchart
Switch: NO contact
Switch: NC contact
Start switch S1
D40B-J1 safety output
KM1, KM2: NC contact
KM1, KM2: NO contact
G-203