Operating Instructions
L 4000 system
WARNING
Fig. 18: Connection of the
reset button
Note
8010009/TI69/2009-11-26
Electrical installation
5.3
Reset button
In protective operation with internal restart interlock, the operator
must first press the reset button before restarting.
Select the correct installation site for the reset button!
Install the reset button outside the hazardous area such that it cannot
be operated from inside the hazardous area. When operating the re-
set button, the operator must have full visual command of the haz-
ardous area.
To deactivate the internal restart interlock, connect PIN 9 to 24 V.
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
1 2 3 4
9 10 11 12
Reset
OSSD ON
OSSD OFF
RESET
DC 24 V
L 4000
STATUS
UE 401
13 14 15 16
5 6 7 8
Chapter 5
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