•
Deactivated
: No indication of contamination.
•
High availability
: Contamination warning and contamination errors are only output
when the front screen is uniformly contaminated. This means that all 6 sectors
must have reached the limit value for a warning or error.
•
Available
: Contamination warning and contamination errors are output when the
front screen is partially contaminated. With this strategy, the front screen is div‐
ided into two monitored areas (3 sectors on the right half and 3 sectors on the left
half). Only when all 3 sectors of a monitored area have reached the limit value for
warning or error does the contamination warning or contamination error become
active.
•
Semi-sensitive
: Contamination warning and contamination errors are output when
the front screen is partially and only slightly contaminated. The sensor evaluates
all sectors and activates the contamination warning or contamination error using
the following strategy:
°
No warning/error: If the sum of sectors with reached limit value for error = 0
and the sum of sectors with reached limit value for warning <=1
°
Warning: If the sum of sectors with reached limit value for error = 1 and the
sum of sectors with reached limit value for warning >=2
°
Error: If the sum of sectors with reached limit value for error >= 2
•
Sensitive
: Contamination warning and contamination errors are output even when
there is just a little or local contamination. When a sector has reached the limit
value for warning or error, the contamination warning or contamination error
becomes active.
NOTE
•
The cleaner the application environment is, the lower you can set the contami‐
nation measurement sensitivity. If a high precision of the measured values is
required, the contamination measurement must be set to the most sensitive level.
•
If a weather protection hood is mounted on the device, the accessory combination
used must be communicated to the device in SOPAS ET.
Contamination warnings and contamination errors are displayed on the status indica‐
tors of the device
see "Status indicators", page 10
.
3.4.13
Calculation of the field size for mobile applications
In order to prevent collisions between vehicles, and between vehicles and fixed objects,
the switching field must have sufficient length and width.
To calculate the switching field length, you need to take into consideration the stop‐
ping distance of the vehicle. This comprises the following:
•
the braking distance, which can be found in the vehicle documentation
•
the distance covered during the vehicle control’s response time, which can be
found in the vehicle documentation
•
The distance covered during the response time of the LiDAR sensor,
NOTE
•
We recommend adding a supplement of at least 100 mm to the protective field
length in order to stop the vehicle before a possible collision.
•
If retro-reflectors are situated in the path of the vehicles, or if you anticipate that
the braking force of the vehicle will diminish over time, you may, under certain
circumstances, need to increase the recommended supplement.
•
The width of the switching field should cover the vehicle width. You should also
configure a supplement of at least 100 mm on every side.
PRODUCT DESCRIPTION
3
8023051/1AZG/2021-05-10 | SICK
O P E R A T I N G I N S T R U C T I O N S | LMS1104C-111031S01
25
Subject to change without notice
