Leuze electronic ML2R-SR4 Manual page 14

Table 8.1:
Items on the check list
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?
Does the safety relay satisfy the safety-related capability (PL, SIL, category) as
required by the risk assessment?
Circuit diagram: Are the safety-related switching outputs (OSSDs) integrated in the
downstream machine control acc. to the required safety category?
Are the switching elements (e.g. contactors) with positive-guided contacts that are con-
trolled by the safety relay monitored by a feedback circuit (EDM)?
Does the electrical wiring match the circuit diagrams?
Have the required protective measures against electrical shock been effectively imple-
mented?
Has the maximum stopping time of the machine been remeasured and recorded in the
machine documents?
Is the required safety distance (protective field to the next point of operation) main-
tained?
Are all points of operation of the machine accessible only through the protective field?
Are all additional protective devices (e.g. safety guards) correctly mounted and pro-
tected against tampering?
Is the command device for triggering the start/restart interlock of the safety relay or the
machine mounted in accordance with specifications?
Are safety relay, connecting cable, plug, protection caps and command devices
undamaged and free of any signs of manipulation?
Has the effectiveness of the protective function been ensured for all operating modes of
the machine by means of a function test?
Is the start/restart button for resetting the safety relay mounted outside of the danger
zone in accordance with specifications 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 start/restart button is installed?
Does the interruption of any given beam cause the dangerous movement to stop?
When the AOPD is separated from its supply voltage, does the dangerous movement
stop, and, after the supply voltage has been restored, is it necessary to actuate the
start/restart button to reset the machine?
Is the safety relay/Are the safety sensors effective during the entire dangerous move-
ment of the machine?
Are the notices for daily testing of the safety sensor legible to the operating personnel
and are they located in a highly visible location?
 Store this checklist with the machine documents.
Leuze electronic
Checklist – initial start-up
ML2R-SR4
Testing
Yes No
14