SICK nanoScan3

•
Z
R
= supplement f
or reflection-based measurement errors in millimeters (mm),
see "Supplement Z
R
for reflection-based measurement errors", page 26
•
C
RO
= supplement to protect against reaching over in millimeters (mm), see "Sup‐
plement C
RO
to protect against reaching over", page 27
The reach/approach speed is already included in the formula.
4.3.7.4 Height of the scan plane
Overview
If y
ou mount the safety laser scanner at a height of at least 300mm (height of the scan
plane), the scan plane is at calf height and the leg is detected at a resolution of 70mm
(see figure 17, page 29).
If the scan plane is lower than 300mm, you must use a resolution finer than 70mm.
The scan plane must not be higher than 1,000mm.
D
H
Figure 17: Scan plane at calf height
Calculating required resolution
If t
he height of the protective field (scan plane) is predefined and is less than 300mm,
you can calculate the required resolution using the following formula:
d
r
= H
D
/15 +50mm
where:
•
d
r
= coarsest permissible resolution of the safety laser scanner in millimeters
(mm)
•
H
D
= height of the protective field above the floor in millimeters (mm)
The safety laser scanner’s resolution can be set to the predefined value d. If the result
d
r
does not match any of these values, you must choose a finer resolution (d ≤ d
r
).
4.3.7.5 Distance from walls
The availability may be impaired if the protective field stretches as far as a wall or a
dif
ferent object. So, a space between the protective field and the object is required. A
distance of the TZ value is recommended to ensure availability. (TZ = tolerance zone of
the safety laser scanner, see "Data sheet", page 117.)
PROJECT PLANNING 4
8027909/2023-02-22 | SICK O P E R A T I N G I N S T R U C T I O N S | nanoScan3 – EtherNet/IP™
29
Subject to change without notice