Electrical Installation - SICK LE20 Instrucciones De Operación

Operating Instructions
LE 20
WARNING
WARNING
Note
8 008 685/Q913/2007-05-21

Electrical installation

5
Electrical installation
Disconnect the system from the power supply!
If you do not do this, the system could inadvertently start while you
are connecting the LE 20.
Ensure that the system is disconnected from the power supply
during electrical installation.
Route the OSSD outputs of the testable single-beam
photoelectric safety switches separately!
The wires of the OSSD switching outputs must be routed to the
SENSOR A and SENSOR B terminals in separate sheathed cables
isolated from the other wiring.
The LE 20 must be connected in accordance with the enclosed
circuit diagram and the following terminal assignment tables.
In the case of the IP 65 housing, the terminal blocks in the
housing should be used for wiring the photoelectric safety switches
and muting sensors in the way shown in Fig. 5-1.
Fig. 5-1: Terminal blocks of the IP 65 housing
a = Blocks for photoelectric safety switches
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Chapter 5
s = Blocks for muting sensors
GB
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