Leuze electronic RSL 420P - Mobile Guarding Calculations

Mounting
Leuze electronic GmbH + Co. KG RSL 420P 61
Protective field contour and reference contour
With a vertical protective field, you must define at least two sides of the protective field contour as refer-
ence contour. The objective is to monitor the position of the protective field with regard to its marginal area.
If the arrangement misaligns and the distance of the safety sensor to the reference surface changes as a
result, switch the safety-related switching outputs off.
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o
S
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3
4
5
6
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1
1 Physical frame for reference contour
2 Reference contour, must cover at least two sides of the protective field
3 Safety sensor
4 Protective field
5 Machine opening contour
6 Overlapo of the protective field via the machine opening towards the reference contour frame
Fig.7.14: Defining the protective field contour and reference contour, stationary point of operation guarding, verti-
cal protective field
7.4 Mobile danger zone guarding on AGVs
Danger zone guarding protects people and objects that are in rooms in which vehicles move in, e.g. auto-
mated guided vehicle systems (AGVs).
A horizontally arranged protective field protects people and objects that are in the vehicle's path and are
detected by the front edge of the protective field.
WARNING
Danger of injury because of insufficient vehicle stopping distance
Ä The operator of the machine must use organizing measures to prevent people from entering
the protective field of the vehicle from the sides or being able to move towards an approach-
ing vehicle.
Ä Only use the safety sensor on vehicles with electrical drive and electrically influenced drive and braking
devices.
Ä Only install the safety sensor on the front of the vehicle.
If you must also guard the reverse travel, you must also install a safety sensor on the rear of the vehi-
cle.
Ä Mount the safety sensor on the vehicle so that there are no unmonitored areas ≥70mm between the
protective field and vehicle front.
Ä Set the mounting height such that the beam level is not more than 200mm above the floor.
A person lying on the floor can therefore be safely detected. This is required by standard
ENISO3691-4 "Industrial trucks – Safety requirements and verification – Part 4: Driverless industrial
trucks and their systems".