Electrical connection
74
BCL
3
5
8
i
Le
u
ze electronic
7.3
Detailed de
s
cription of the connection
s
De
s
cri
b
ed in det
a
il in the following
a
re the individ
ua
l connection
s
a
nd pin
ass
ignment
s
.
7.3.1
PWR /
S
W IN/OUT - Volta
g
e
s
upply and
s
witchin
g
input/output
s
1 and 2
Supply voltage
Attention!
For UL applications, use is permitted exclusively in Class 2 circuits according to NEC
(National Electric Code).
The bar code readers of the BCL 300
i
… series are designed in accordance with safety
class III for supply by PELV (protective extra-low voltage).
Connecting 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 discharged via the functional earth connection.
PWR / SW IN/OUT
Pin
(M12)
Name
(terminal)
Remark
1
VIN
Positive supply voltage
+18 … +30VDC
2
SWIO_1
Configurable switching input / output 1
3
GNDIN
Negative supply voltage
0VDC
4
SWIO_2
Configurable switching input / output 2
5
FE
Functional earth
Thread
FE
Functional earth (housing)
T
ab
le 7.1:
Pin
ass
ignment PWR /
S
W IN/OUT
PWR / SW IN/OUT
SWIO_2
SWIO_1
3
2
1
4
5
GNDIN
VIN
FE
SWIO_2
FE
GNDIN
VIN
SWIO_1
M12 plu
g
(A-coded)
M
S
358
S
prin
g
-loaded terminal
s
MK 358