
Leuze electronic GmbH + Co. KG Sensor LBK S-01 14
3.1.4 Safety assessment
Before using a device, a safety assessment in accordance with the Machinery Directive is required.
The product as an individual component fulfills the functional safety requirements in accordance with the
standards stated in Standards and Directives on page16. However, this does not guarantee the functional
safety of the overall plant/machine. To achieve the relevant safety level of the overall plant/machine’s
required safety functions, each safety function needs to be considered separately.
3.1.5 Intended use
LBK S-01 System is certified SIL 2 according to IEC/EN 62061 and PL d according to EN ISO 13849-1.
It performs the following safety functions:
lAccess detection function: access of one or more persons to a hazardous area deactivates the safety
outputs to stop the moving parts of the machinery.
lRestart prevention function: prevents unexpected starting or restarting of the machinery. Detection of
motion within the dangerous area maintains the safety outputs deactivated to prevent machinery
starting.
It performs the following additional safety functions:
lStop signal: force all the safety outputs to OFF-state.
lRestart signal: enables the controller to switch to ON-state the safety outputs related to all the detection
fields with no motion detected.
lMuting (see Muting on page53).
LBK S-01 System is suitable for protecting the entire body for the following applications:
ldangerous area protection
lindoor and outdoor applications
The following is deemed improper use in particular:
lany component, technical or electrical modification to the product
luse of the product outside the areas described in this document
luse of the product outside the technical details, see Technical data on page102
3.1.6 EMC-compliant electrical installation
NOTICE
The product is designed for use in an industrial environment. The product may cause
interference if installed in other environments. If installed in other environments, measures
should be taken to comply with the applicable standards and directives for the respective
installation site with regard to interference.
3.1.7 General warnings
lIncorrect installation and configuration of the system decreases or inhibits the protective function of the
system. Follow the instructions provided in this manual for correct installation, configuration and
validation of the system.
lChanges to the system configuration may compromise the protective function of the system. After any
changes made to the configuration, validate correct functioning of the system by following the
instructions provided in this manual.
lIf the system configuration allows access to the dangerous area without detection, implement additional
safety measures (e.g. guards).
lThe presence of static objects, in particular metallic objects, within the field of view may limit the
efficiency of sensor detection. Keep the sensor field of view unobstructed.
3 Safety