SICK UE 402 - Sender and receiver; The term dangerous state

Operating Instructions Chapter 

8 009 874/31-03-03 © SICK AG • Industrial Safety Systems • Germany • All rights reserved
7

 /
In drawings and diagrams, the symbol  denotes the C 4000 sender and the symbol 
d
enotes the C 4000 receiver.
+7  8
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
 