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5 Connections
The power supply of the detector and the transfer of the measured values and important
information to the evaluation unit LB 444 K-40 takes place via a two-wire screened cable.
The possible cable length is dependent on the cross-section of the connection cable used.
The cable entry at the detector
permits a cable diameter of 6-10
mm.
5.1.1 Evaluation Unit LB 444 K-40
c a
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
Relay 2
Relay 3
Relay 1
Mains
2(-) 1 (+)
Probe
RS 485
0/4 - 20 mA
LB 444
Voltage
selection
Fuses
Dig. IN 1
Dig. IN 2
Dig. IN 3
4
6
8
Distanzpart
1
2
Connect cable on the
rear panel of the
evaluation unit as shown
in the wiring diagram in
the appendix to this
manual.
Figure 8: Terminal connection evaluation unit (rear panel)
Connect the device only to the appropriate line voltage.
All safety previsions regarding the power distributor have to be observed.
The evaluation units do not include a separate mains switch. A separate
safeguarding and easily accessible shut-down have to be foreseen.
The device must not be installed in explosive hazardous areas.
Refer to the wiring diagram in the appendix to this manual regarding the connections.
cross-section in mm² Max. cable length in m
1 1000
1.5 1500
2.5 2500
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