Figure 3: Principle of operation of the safety laser scanner rotation
1
Angular resolution
2
Object resolution
The device also contains a uniformly rotating mirror. The mirror deflects the light pulses
so t
hat they extend over a 270° sector of a circle. This means an object in the protec‐
tive field can be detected within 270°. The first beam of a scan begins at −45° in rela‐
tion to the rear side of the safety laser scanner.
The device emits the light pulses with an angular resolution of 0.5° 1. This enables
resolutions between 30 mm and 150 mm to be achieved 2.
Thanks to the active scanning principle, the safety laser scanner does not need exter‐
nal receivers or reflectors. This has the following advantages:
•
The installation process requires very little time or effort.
•
The monitored area can be easily adapt to the hazardous area of the machine.
•
In contrast to tactile sensors, non-contact scanning is nearly wear-free.
Contour monitoring
In addit
ion to the protective field, the safety laser scanner can also monitor a contour
(e.g., the floor in vertical applications).
Mode of operation
The safety laser scanner can only fulfill its protective function if the following require‐
ments are satisfied:
•
It must be possible to influence the machine, system or vehicle control electrically.
•
It must be possible to change the dangerous state of the machine, the system or
the vehicle into a safe state at any time by means of the OSSDs on the S300 Mini
Standard. That is, before a person reaches the hazardous points or hazardous
areas.
Or:
It must be possible to change the dangerous state of the machine, the system or
the vehicle into a safe state at any time by means of the OSSDs on a safety con‐
troller connected to the S300 Mini Remote or another safety laser scanner.
3 P
RODUCT DESCRIPTION
14
O P E R A T I N G I N S T R U C T I O N S | S300 Mini 8014170/ZA23/2019-11-14 | SICK
Subject to change without notice
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