Datalogic Laser Sentinel, Instruction Manual, Page: 96 / 152

FUNCTIONS
78
SAFERY LASER SCANNER
ENCODERS
In dynamic applications, the safety area can change according to the position, direction,
and speed of the vehicle. A typical example is the use of the Safety Laser Scanner on an
Automated Guided Vehicle (AGV). If the speed changes, the minimum safety distance
changes accordingly (the faster the movement, the longer the distance).
Figure 19 - AGV application
To meet such requirements, the SLS-M5-E-1708 model is equipped with encoder inputs
that allow measuring the actual speed of the vehicle. Speed information is received
from two independent encoders through their high-speed inputs supported by the 8-
pole connector (pins 4, 5, 6, 8).
The Laser Scanner receives the signals sent by the encoders to detect any object in the
safety area by switching between the safety and warning areas associated with the vehi-
cle. To this end, different zone sets must be configured so that each one of them will be
activated by means of the inputs dedicated to the area switch. The number of available
zone sets depends on the number of available inputs. The maximum number of zone
sets is 70.
Each zone set can be composed as follows:
1 Safety area
2 Warning areas (optional)
1 Muting area (optional)
2 Safety areas
1 Warning area (optional)
1 Muting area (optional)
3 Safety areas
1 Muting area (optional)
Outputs needed
2 Safety outputs (OSSDs)
2 Standard outputs
4 Safety outputs (OSSDs)
1 Standard output
6 Safety outputs (OSSDs)
NOTE
CASE A CASE B CASE C
In case of a Master-Slave system, the zones designed for all the scanners
must be considered.