Leuze electronic
BCL 558
i
77
TNT
35/7-2
4
V
7.2.1
PWR – Voltage supply and switching input/outputs 3 and 4
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 500
i
… series are designed in accordance with safety class
III for supply by PELV (protective extra-low voltage with reliable disconnection).
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.
Switching input/output
The bar code readers of the BCL 500
i
series are equipped with four freely programmable,
opto-decoupled switching inputs and outputs
SWIO_1 … SWIO_4
.
The switching inputs can be used to activate various internal functions of the BCL 558
i
(decoding, autoConfig, …). The switching outputs can be used to signal the state of the
BCL 558
i
and to implement external functions independent of the superior control.
The two switching inputs/outputs
SWIO_1
and
SWIO_2
are located on the
SW IN/OUT
M12
socket and are described in chapter 7.2.3. The other two (
SWIO_3
and
SWIO_4
) of the four
freely configurable switching inputs/outputs are located on the
PWR
M12 connector.
PWR (5-pin plug, A-coded)
Pin
Name
Remark
1
VIN
Positive supply v10 … +30VDC
2
SWIO_3 Configurable switching input / output 3
3
GND
Negative supply voltage 0VDC
4
SWIO_4 Configurable switching input / output 4
5
FE
Functional earth
Thread
FE
Functional earth (housing)
Table 7.1:
Pin assignment PWR
PWR
SWIO_4
SWIO_3
3
2
1
4
5
GND
VIN
FE
M12 plug
(A-coded)