Appendix
72 SOLID-4 Leuze electronic
DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS
12.4.3 Checklist for access guarding
For a SOLID-4 Safety Light Curtain with normal approach to the protective field
This checklist is intended as a help tool. It supports but does not replace the inspection
before first startup or the respective regular inspections by an expert.
• Has the safety distance been calculated in accordance with the applicable
regulations
, and has this minimum distance between protective field and the
point of operation been observed?
Yes No
• Are the required beam heights of the lowest and the highest beam complied
wi
th
(see Chapter 6.1.3)?
Yes No
• If access to the point of operation is possible through routes other than the
protec
tive field of the AOPD, are the other access options suitably secured
by other means?
Yes No
• Are the protective device and the control devices in good, fault-free
condit
i
on?
Yes No
• Are transmitter and receiver fixed against displacement/turning after the
alignm
ent?
Yes No
• Are all connectors and connecting cables in fault-free conditions? Yes No
• Is the start/restart button for resetting the AOPD positioned outside of the
danger zone in line wit
h
specifications so that it cannot be reached from
inside? Is there a complete overview of the danger zone from the start/
restart button position?
Yes No
• Are both safety-related switching outputs (OSSDs) linked into the down-
stream machine control unit in accordance with the required safety cate-
gory?
Yes No
• Are the subsequent switching elements controlled by the AOPD, e.g.
cont
act
ors 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
t
he circuit
diagrams?
Yes No
• Does the AOPD respond correctly when any beam is interrupted and does
the st
art/restart interlock lock when the beam is interrupted? This is
absolutely necessary, as the access, not the presence in the danger zone is
recorded.
Yes No
• Does the dangerous movement stop immediately if the supply voltage of the
A
O
PD is interrupted and is the start/restart button required to reset the opto-
electronic protective device again after the supply voltage returns?
Yes No
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