-5°
0°
90°
2
1
180°
185°
Figure 3: Principle of operation of the safety laser scanner rotation
1
2
Object resolution
The device also contains a uniformly rotating mirror. The mirror deflects the light pulses
so that they extend over a 190° sector of a circle. This means an object in the protec‐
tive field can be detected within 190°. The first beam of a scan begins at −5° in rela‐
tion to the rear side of the safety laser scanner.
The device emits the light pulses with an angular resolution of 0.25 or 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 addition 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 using the OSSDs on the safety laser scan‐
ner. That is, before the 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 Standard or another safety laser scanner.
3
PRODUCT DESCRIPTION
14
O P E R A T I N G I N S T R U C T I O N S | S3000 Cold Store
8012029/ZA20/2019-11-14 | SICK
Subject to change without notice
