Connecting
Connecting safe sensors and actuators
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6.4
Connecting safe sensors and actuators
NOTE
We recommend pre-assembled 5-pin sensor cables. Suitable cables can be found on
DANGER
Wrong supply of sensors and actuators
Danger to life due to external supply
Exclude external supply.
Guarantee that the inputs are only supplied through the same 24 V source as
the device itself.
Safety inputs (FDI)
The device has eight M12 connectors for connecting safe sensors and actuators. The maximum
tightening torque is 0.8 Nm.
Fig. 14: M12 connector, safety inputs (FDI)
Connect the sensors to the device according to the pin assignment.
4
1
3
2
5
v
1 = V
aux
1/T1
2 = FDI (T2)
3 = GND (V1)
4 = FDI (T1)
5 = T2
Fig. 15: Pin assignment C0…C3, FDI
Signal
Meaning
VAUX1/T1
Sensor supply/ test pulse 1
FDI (T2)
Digital input 1
GND (V1)
Ground V1
FDI (T1)
Digital input 2
T2
Test pulse 2
FE
FE is connected to the thread of the M12 connector.
