Electrical connection
Leuze electronic GmbH + Co. KG
BCL 308
i
66
7.3
Detailed description of the connections
Described in detail in the following are the individual connections and pin assignments.
7.3.1 PWR / SW IN/OUT - Voltage supply and switching input/output 1 and 2
Supply voltage
The bar code readers of the
BCL 300
i
… series are designed in accordance with protection class III for
supply by PELV (protective extra-low voltage with reliable disconnection).
Connecting the functional earth FE
Ensure that the functional earth (FE) is connected correctly. Unimpaired operation is only guaranteed
when the functional earth is connected properly. All electrical disturbances (EMC couplings) are dis
-
charged via the functional earth connection.
PWR / SW IN/OUT
Pin
(M12)
Name
(terminal)
Comment
1
VIN
Positive supply v18 … +30 V DC
2
SWIO_1 Configurable switching input/output 1
3
GNDIN
Negative supply voltage 0 V DC
4
SWIO_2 Configurable switching input/output 2
5
FE
Functional earth
Thread
FE
Functional earth (housing)
Table 7.1:
PWR / SW IN/OUT pin assignment
ATTENTION!
For UL applications, use is only permitted in Class 2 circuits in accordance with the NEC
(National Electric Code).
PWR / SW IN/OUT
SWIO_2
SWIO_1
3
2
1
4
5
GNDIN
VIN
FE
SWIO_2
FE
GNDIN
VIN
SWIO_1
M12 connector
(A-coded)
MS 308
Spring-cage terminals
MK 308
