Leuze electronic SD2R20 Series, Connecting And Operating Instructions

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Appendix
Leuze electronic SOLID-2 57
TNT
35/7-2
4V
Review-Stand, , 8. April 2015
DEUTSCH
ENGLIS
H
FRAN
ÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
11.4.3 Checklist for access guarding
This checklist represents a help tool. It supports but does not serve for the inspection
before initial operation or the regular inspections by an expert.
*) For Safety Light Curtains with resolutions of 20, 30 or 40 mm, the appropriate test rod should be
moved up and down in the middle of the protective field. LED1 must stay “red” during the test and
must not switch to “green” at any point. For Receiver Extended with selected internal start/restart
interlock function the yellow LED2 must not switch to the ON state while the appropriate test rod is
present at any point of the protective field (see Chapter 8.3).
• Has the safety distance been calculated according to the valid
formula for
access guarding
and is this minimum distance obser-
ved between the protective field and the danger point?
yes no
• Are the required beam heights of the lowest and the highest beam
realized (see Chapter 5.1.3)?
• If access to the danger points is possible through other routes than
the protective field of the AOPD, are the other access options
suitable secured by other means?
yes no
• Are transmitter and receiver fixed against displacement/turning
after the alignment?
yes no
• Are the protective device and the control devices in good condi-
tions?
yes no
• Are all connectors and connection cables in fault-free conditions? Yes no
• Is the start/restart button for resetting the AOPD positioned outside
the danger zone in line with the specifications so that it cannot be
reached from inside? Is there a complete overview over the danger
zone from the start/restart button position?
yes no
• Are the safety outputs (OSSDs) linked into the subsequent machine
control unit in accordance with the required safety category?
yes no
• Are the subsequent switching elements controlled by the AOPD,
e.g. contactors with positive-guided contacts or safety valves
monitored via the feedback circuit (EDM)?
yes no
• Does the actual integration of the AOPD into the machine control
unit match the circuit diagrams?
yes no
• Does the AOPD respond correctly when any beam is interrupted*
and does the system lock (inevitable with activated start/restart
interlock as only the access not the presence of a person in the
danger zone is recognized)?
yes no
• Does the dangerous movement stop immediately if the supply
voltage of the AOPD is interrupted and is the start/restart button
needed to start the machine again after the supply voltage returns?
yes no