To Be Performed Periodically By Competent Persons; Periodically By The Operator; Checklist - Periodically By The Operator - Leuze electronic MLC 500 Original Operating Instructions

9.2

To be performed periodically by competent persons

The reliable interaction of safety sensor and machine must be regularly tested by qualified persons (see
chapter 2.2 "Necessary competencies") in order to detect changes to the machine or impermissible tamper-
ing with the safety sensor.
Acc. to IEC 62046 and national regulations (e.g., EU directive 2009/104/EC), tests of elements which are
subject to wear must be performed by qualified persons (see chapter 2.2 "Necessary competencies") at
regular intervals. Testing intervals may be regulated by nationally applicable regulations (recommendation
acc. to IEC 62046: 6 months).
Ä Only allow testing to be performed by qualified persons (see chapter 2.2 "Necessary competencies").
Ä Observe the nationally applicable regulations and the time periods specified therein.
Ä As preparation, observe the checklist (see chapter 9.1 "Before commissioning and following modifica-
tions").
9.3

Periodically by the operator

The function of the safety sensor must be checked depending on the given risk according to the following
checklist so that damages or prohibited tampering can be detected.
Depending on the risk assessment, the test cycle must be defined by the integrator or operating company
(e.g., daily, on shift changes, ...) or is specified by national regulations or regulations of the employer's lia-
bility insurance association and may be dependent on the machine type.
Due to complex machines and processes, it may be necessary under certain circumstances to check some
points at longer time intervals. Observe the classification in "Test at least" and "Test when possible".
NOTICE
For larger distances between transmitter and receiver and when using deflecting mirrors, a sec-
ond person may be necessary.
Unpredictable machine behavior during the test may result in serious injury!
Ä Make certain that there are no people in the danger zone.
Ä Before they begin work, train the operators on their respective tasks and provide suitable
test objects and an appropriate test instruction.
9.3.1 Checklist – periodically by the operator
NOTICE
Ä If you answer one of the items on the following check list with no, the machine must no
longer be operated.
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WARNING
MLC 520 Host/Guest
Testing
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