Checklist For Danger Area Guarding - Siemens SIMATIC FS400 Anleitung

13.2.2 Checklist for danger area guarding

For a SIMATIC FS400 Lichtvorhang 3RG7845 light curtain (50 and 90 mm resolution),
with parallel approach to the protective field
This checklist is intended as a help tool. It supports but does not serve for the
inspection before initial operation or the regular inspections by an expert.
The minimum height of the protective field above the reference
plane relates to the resolution of the AOPD. Was the resolution
used for the calculation of the minimum height and is this result
considered?
Has the safety distance been calculated according to the valid
formula for danger area guarding
distance between the most distant beam and the danger point
been observed?
During risk assessment, has it been ensured that only protective
field heights less than 300 mm above the floor are regarded as
low enough not to be crawled under (EN 999)?
Is the access to the danger point only possible through the
protective field of the AOPD and are other access possibilities,
especially from the sides, protected by suitable hard guards or
other means?
Is unprotected presence between the next beam and the danger
point definitively excluded?
Are transmitter and receiver fixed against displacement/turning
after the alignment?
Are the protective device and the control devices in good
condition?
Are all connectors and connection cables in fault-free
conditions?
Is the start/restart button for starting/restarting the AOPD
positioned outside the danger zone and is it effective?
Are the safety outputs (OSSDs), linked into the downstream
machine control in accordance with the required safety
category?
Are the subsequent circuit elements controlled by the AOPD
monitored by the feedback circuit (EDM), e.g. contactors with
positive-guided contacts or safety valves?
Does the actual integration of the AOPD into the machine control
unit match the circuit diagrams?
Is the AOPD effective during the entire dangerous movement of
the machine?
Is the dangerous movement stopped immediately if the supply
voltage of the AOPD is interrupted and is the start/restart button
required to start the machine again after the supply voltage
returns?
216
and has this minimum
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