4.2.3 Detection fields dependency and detection signal generation
If a sensor detects motion within a detection field, its detection signal changes status and, when configured, the
related safety output is deactivated. The behavior of the outputs related to the following detection fields depends
on the detection field dependency set:
If... Then...
the Dependent mode is set and thus detection fields
are dependent on each other
l if a sensor detects motion within detection field 1,
the output related to detection field 2 is
deactivated, too.
Example
Detection field configured: 1, 2
Detection field with target detected: 1
Detection field in alarm status:1, 2
l if a sensor detects motion within detection field 2,
only the output related to detection field 2 is
deactivated.
Example
Detection field configured: 1, 2
Detection field with target detected: 2
Detection field in alarm status:2
the Independent mode is set and thus detection fields
are independent from each other
l if a sensor detects motion within detection field 1,
only the output related to detection field 1 is
deactivated.
Example
Detection field configured: 1, 2
Detection field with target detected: 1
Detection field in alarm status:1
l if a sensor detects motion within detection field 2,
only the output related to detection field 2 is
deactivated.
Example
Detection field configured: 1, 2
Detection field with target detected: 2
Detection field in alarm status:2
WARNING! If detection fields are independent, an evaluation of the safety of the monitored area
must be performed during the risk assessment. LBK-S01 is a single target sensor. This means that
when a target is detected in detection field 1 of a sensor, detection field 2 becomes temporarily
blind.
In the Inxpect Safety application, click on Settings > Sensors > Detection field dependency to set the
dependency mode of the detection fields.
4.3 System category (according to EN ISO 13849)
4.3.1 System safety degree
Both control unit (ISC-B01, ISC-02 and ISC-03) and LBK-S01 are classified PL d according to EN ISO 13849-1,
and SIL 2 according to IEC/EN 62061.
4. Functioning principles
LBK System Series| Instruction manual v1.2 SET 2021|SAF-UM-LBKBus-en-v1.2|© 2020-2021 Inxpect SpA
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