When switching between monitoring cases, it is possible that a person may already be
in t
he 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.
•
Fast (1 scan) (default setting): Multiple sampling after monitoring case switching
n
CS
= 1. An object needs to be scanned once before the safety laser scanner
responds. Fastest response and safest behavior of the safety laser scanner.
•
Robust (multiple sampling - 1): Multiple sampling after monitoring case switching n
CS
= 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 monitoring case switching in line with your requirements on 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 sampling 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.
7.9.2 Parameters for the safety laser scanner
Overview
T
his is where you configure the parameters for the safety laser scanner.
Scan cycle time
Y
ou can configure the scan cycle time. The scan cycle time of the safety laser scanner
affects the response time and the protective field range.
Devices with a max. protective field range of 4.0 m and devices with max. protective
field range of 5.5 m:
•
40 ms: Full protective field range, increased availability in dusty conditions, for
example
•
30 ms: Smaller protective field range with shorter response time
Devices with a max. protective field range of 9.0 m:
•
50 ms: Full protective field range, increased availability in dusty conditions, for
example
•
40 ms: Smaller protective field range with shorter response time
b
Select scan cycle time.
✓
The resulting response time and the range of the fields are shown.
Additional interference protection
If y
ou mount several safety laser scanners in close proximity to each other, this can
lead to mutual interference. You will prevent mutual interference in neighboring safety
laser scanners if you choose different settings for interference protection.
7 C
ONFIGURATION
104
O P E R A T I N G I N S T R U C T I O N S | microScan3 – PROFINET 8021219/1ELL/2022-01-21 | SICK
Subject to change without notice
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