Rockwell Automation 2755-L7, -L9 Scanners - Manual (Page 6)

Chapter 1
Using this Manual
1–2
No special knowledge is needed to read this manual and follow its directions.
If the system will be used to communicate with a higher level controller, we
assume you are familiar with communication terminology.
Both warnings and cautions are found in this manual and on the equipment.
The following symbols are used:
WARNING: A warning symbol means people might
be injured if the procedures are not followed.
CAUTION: A caution symbol is used when
machinery could be damaged if the procedures are not
followed.
CAUTION: This laser caution symbol appears where
laser radiation is present.
The scan head is labeled in accordance with federal regulations. If any label
is removed, lost, or becomes illegible, order a replacement from your
Allen–Bradley representative. Figure 1.1 shows location of the labels on the
scan head.
!
WARNING: No user maintenance of the scan head is required.
Do not open the enclosure!
WARNING: Improperly controlling, adjusting, or operating the
scan head can result in hazardous radiation exposure.
Intended Audience
Warnings And Cautions
Danger and Caution Labels