Electrical connection
Leuze electronic
LSIS 472i
21
7
Electrical connection
7.1
Overview
The electrical connection of the device is performed using M12 connectors.
1
SERVICE: host and service interface (Ethernet); M12-socket (D-coded)
2
PWR: supply voltage (18 V … 30 VDC), IO1 … IO4; M12 plug (A-coded)
3
BUS OUT: RS 232 interface, IO5 … IO8; M12 socket (A-coded)
Figure 7.1: Position and designation of the M12 connections
For all connections (connection cable, interconnection cable, etc.), use only the cables listed in
the accessories (see chapter 14.2 "Cables-Accessories").
CAUTION
Safety Notices!
Before connecting the device please ensure that the supply voltage matches the value printed on the
nameplate.
Only allow competent persons to perform the electrical connection.
The shielding connection is done via the M12 connector housing.
Ensure that the functional earth (FE) is connected correctly.
Fault-free operation is only guaranteed if the functional earth is connected properly.
All electrical disturbances (EMC couplings) are discharged via the functional earth connection.
If faults cannot be rectified, take the device out of operation. Protect the device from accidentally being
started.
NOTICE
UL applications
For UL applications, use is only permitted in class 2 circuits in accordance with the NEC (National Elec
-
tric Code).
3
2
1
