Electrical Connections - SICK LCU-X Manual De Instrucciones

Operating instructions
LCU-X
4

Electrical Connections

WARNING
8 007 936/N079/17-12-02 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
Electrical Connections
The connections are made by way of the two plug-in terminal
strips: conductor cross-section max. 2.5 mm
connection diagram of the LCU-X.
The number of occupied terminals is determined by the select-
ed functions. The Startup/Restart Inhibit and Contactor Moni-
toring functions can be deselected separately by means of wire
links.
Depending on the function selection, the reset device and the
NC contacts of the external contactors need to be connected in
addition to the sensor, the power supply and the outputs. When
contactors are connected, appropriate RC elements must be
used directly on the contactor coil. Fig. 2 shows the configu-
ration of the LCU-X with a external reset and contactor
monitoring.
Terminals C 1, C 2, C 3, C 4 and D 1, D 2, D 3, D 4 have a load
capacity of 2.5 A..
Isolated plastic-sheathed cables
Outside the control cabinet the connected output cables of
protective device sensors that are not short circuit monitored
must be routed in separate plastic-sheathed cables, and the
wires of the switching outputs (signal lines to the contactors)
must be individually shielded and the shields must be
connected to 0 V in the control cabinet.
GB
Chapter 4
2
. Fig. 1 shows the
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