Electrical Installation; Supply Voltage; Electrical Connections And Terminal Assignment - Leuze lumiflex Scan Connecting And Operating Instructions

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Electrical Installation

5.1

Supply Voltage

The transmitter and receiver must be supplied with +24V DC +/- 20 %. The maximum
power consumption is 150 mA (without load). The power supply must exhibit a safe
mains separation in accordance with IEC 60742 and be able to bridge short-term
mains failures of up to 20 ms.
5.2

Electrical Connections and Terminal Assignment

The connections are made using shielded connecting cables with M12 connectors
(available as accessories). There are two possible types of connection. Either the
transmitter and receiver can be connected to the control cabinet via separate cables
(M12 plug at one end), or they can be joined via an M12 Y-distributor and then
connected to the control cabinet by means of a joint connecting cable (see Accesso-
ries).
The shield must be connected to PE. The cables must be laid separately from mains
power cables. The following tables show the terminal assignments of the transmitter
and receiver.
SCAN Transmitter
M12 Wire color
Con-
nector
1 white
2 brown
3 green
4 yellow
5 grey
6 pink
7 blue
8
Meaning
+24V DC
PE
0 V
free
free
free
free
Protective shield/PE
SCAN
SCAN Receiver
M12 Wire color
Con-
nector
1 white
2 brown
3 green
4 yellow
5 grey
6 pink
7 blue
8
Meaning
+24V DC
PE
0 V
Switch
output
"Weak signal",
"Failure"
RS 485+
RS 485-
Protective shield/PE
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