SICK nanoScan3

A multiple sampling of 2 is the minimum setting.
A hi
gher multiple sampling increases the response time and influences the minimum
distance.
Table 13: Recommended multiple sampling
Application Recommended multiple sampling
Stationary application:such as horizontal haz‐
ar
dous area protection or vertical hazardous
point protection under clean ambient condi‐
tions
2×
Stationary application:such as vertical access
pr
otection
Only 2-time or 3-time multiple sampling may
be used for vertical access protection.
2×
Mobile application 4×
Stationary application:such as horizontal haz‐
ar
dous area protection under dusty ambient
conditions
8×
Multiple sampling after monitoring case switching
W
hen switching between monitoring cases, it is possible that a person may already be
in the newly activated protective field when switching takes place. In order to ensure
that the person is detected quickly and the dangerous state is brought to an end swiftly,
you can adjust the settings for multiple sampling immediately after switching between
monitoring cases – regardless of any other multiple sampling in place.
For persons and body parts to be reliably detected, each monitoring case must be
active for at least as long as the safety laser scanner requires for detection (set multiple
sampling after switching between monitoring cases multiplied by the scan cycle time).
•
Fast (1 scan) (preset)
Multiple sampling after switching between monitoring cases n
C
S
= 1. An object
needs to be scanned once before the safety laser scanner responds. Fastest
response and safest behavior of the safety laser scanner.
•
R
obust (multiple sampling - 1)
Multiple sampling after switching between monitoring cases n
C
S
= n - 1. Multiple
sampling after switching between monitoring cases is one scan fewer than any
other multiple sampling in place. This reduces the possibility that insects, weld
sparks, or other particles cause the machine to be switched off. This increases
machine availability. The standard response time applies from the outset in the
new field.
•
User
-defined (please consult manual)
You can adjust the settings for multiple sampling after switching between moni‐
t
oring cases in line with your requirements for the response time and reliability.
Regardless of the exact settings here, multiple sampling after switching between
monitoring cases is always at least one scan fewer than any other multiple sam‐
pling in place: n
CS
≤ n – 1
Multiple sampling after object detection
T
he set multiple sampling also applies by default if a field becomes free again after an
object detection. That means, when the field is free again, the free field is scanned the
same number of times until the safety outputs switch back to the ON state.
If you activate the Activate different multiple sampling rate after object detection option, you
can specify deviating values for the monitoring level or for individual fields. This may
cause the outputs to switch back to the ON state faster or slower after a field has
become free again.
7 C
ONFIGURATION
70
O P E R A T I N G I N S T R U C T I O N S | nanoScan3 – EtherNet/IP™ 8027909/2023-02-22 | SICK
Subject to change without notice