52
O P E R A T I N G I N S T R U C T I O N S | safeRS3
8027489/2022-03-01 | SICK
Subject to change without notice
5 FUNCTIONING PRINCIPLES
5.11.5
Settings
The anti-masking settings are the following:
l
distance from the sensor (max. 1 m (3.3 ft), 10 cm (3.9 in) steps) in which the
function is active.
l
sensitivity
These are the four levels of sensitivity:
Note
: the function has a tolerance area where the actual detection of a masking object
depends on the RCS of the object and on the sensitivity level set. The high sensitivity
level has the largest area, about 10-20 cm (3.9-7.9 in).
Level
Description
Example application
High
The system has the highest
sensitivity to changes in the
environment. (Suggested level when
the field of view is empty up to the
set masking distance)
Installations with an empty
environment and a height of less than
one meter, where objects could
occlude the sensor.
Medium
The system has low sensitivity to
changes in the environment.
Occlusion must be evident
(deliberate tampering).
Installations with a height of more
than one meter, where masking is
likely to occur only if voluntary.
Low
The system detects masking only if
the sensor occlusion is complete and
the objects are highly reflective (e.g.
metal, water) near the sensor.
Installations on moving parts, where
the environment is changing
continuously, but where static objects
may be near the sensor (obstacles on
the route).
Disabled
The system does not detect changes
in the environment.
WARNING
If the function is
disabled the system cannot signal
the presence of objects that might
impede normal detection (see
Checks when the anti-masking
function is disabled below
).
See
When to disable on the next page
To set the distance, in the safeRS3 Designer application, click
Settings
and then
Sensors
.
To change the sensitivity level or disable the function, in the safeRS3 Designer
application click
Settings
and then
Sensors
.
5.11.6
Checks when the anti-masking function is disabled
When the anti-masking function is disabled, perform the following checks.
Safety function
Schedule
Action
Access detection
function
Before each machinery restart Remove any objects that obstruct the field
of view of the sensor.
Reposition the sensor according to the
initial installation.
Restart prevention
function
Each time the safety outputs
are deactivated
