Testing
Leuze electronic
MC3x
38
8.1.1 Checklist – before the initial start-up
Tester: Competent person
Table 8.1:
Checklist – before the initial start-up
Check
Yes
No
Were all safety directives and standards relevant to this machine type
observed?
Does the Declaration of Conformity of the machine include a listing of
these documents?
Do the Safety Relay, sensor and actuator satisfy the safety-related
capability (PL, category) as required by the risk assessment?
Circuit diagram: Are both safety-related switching outputs (OSSDs)
integrated in the downstream machine control acc. to the required
safety category?
Circuit diagram: Are the switching elements (e.g. contactors, relays)
with positive-guided contacts that are controlled by the MSI-MC3x
Safety Relay monitored by a feedback circuit (EDM)?
Have the cables been laid separately/in a protected manner?
Does the electrical wiring match the circuit diagrams?
Have the required protective measures against electrical shock been
effectively implemented?
Has the maximum stopping time of the machine been remeasured and
recorded in the machine documents?
Is the required safety distance between the guard (moveable part of the
guard) and the nearest point of operation maintained, taking into
account all response times?
Are all of the machine's points of operation accessible only through the
monitored moveable part of the guard?
Are all additional protective devices (e.g. safety guards) correctly
mounted and protected against tampering?
Is the reset button for releasing the start/restart interlock of the MSI-
MC3x mounted outside of the danger zone in accordance with specifi
-
cations in such a way that it cannot be reached from within the danger
zone? Can the entire danger zone be seen from the place at which the
reset button is installed?
Are sensor and actuator correctly aligned and are all fastening screws
and plugs secure?
Are all parts of the safety device undamaged and without signs of tam
-
pering?
Has the effectiveness of the protective function been checked for all
operating modes of the machine by means of a function test?
Does opening of the monitored moveable part of the guard cause the
dangerous process to stop in such a way that the dangerous process
cannot be reached during the stopping time?
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