Chapter
1
Operating Instructions
C4000 Select
8
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8012247/RI61/2007-11-30
About this document
The term “dangerous state”
The dangerous state (standard term) of the machine is always shown in the drawings and
diagrams of this document as the movement of a machine part. In practical operation,
there may be a number of different dangerous states:
machine movements
electrical conductors
visible or invisible radiation
a combination of several risks and hazards