Electrical connection
Leuze electronic
DCR 202i
28
7
Electrical connection
7.1
Overview
The code reader is provided with the following connections:
• PWR / SWIO: A-coded, 12-pin, M12 connection for operating voltage, switching inputs/outputs,
RS 232/RS 422 interface
• HOST: D-coded, 4-pin, M12 connection for the Ethernet connection
CAUTION
Safety notices!
Before connecting the device please ensure that the operating voltage matches the value printed on
the nameplate.
Only allow competent persons to perform the electrical connection.
Ensure that the functional earth (FE) is connected correctly.
Fault-free operation is only guaranteed if the functional earth is connected properly.
If faults cannot be rectified, take the device out of operation. Protect the device from accidentally being
started.
NOTICE
Shielding connection!
The shielding connection is done via the M12 connector housing
NOTICE
UL applications!
For UL applications, use is only permitted in Class 2 circuits in accordance with the NEC (National
Electric Code).
NOTICE
Protective Extra Low Voltage (PELV)!
The device is designed in accordance with safety class III for supply with PELV (Protective Extra-Low
Voltage).
NOTICE
Degree of protection IP 65!
Degree of protection IP 65 is achieved only if the connectors and caps are screwed into place.
