Original instructions – Rockwell Automation 442L SafeZone Singlezone & Multizone Safety Laser Scanner User Manual
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SafeZone™ Safety Laser Scanner User Manual
12 10000073050, July 2011
Original instructions
The maximum protective safety field range is dependent on the
resolution selected, and the basic response time for the application is in
turn dependent of the protective safety field range. The following tables
show the values that can be configured:
Table 3: Maximum protective safety field range—SafeZone
multizone 5 m range
Table 3B: Maximum protective safety field range—SafeZone
singlezone 4 m range
3.4.3 Using the contour of the protective safety field
as a reference
If the beams of the protective safety field reach as far as an obstacle (e.g. the
floor in vertical applications or the walls in horizontal applications), the
SafeZone multizone safety laser scanner can also monitor the contour of the
protective safety field.
Figure 15: Schematic diagram of contour as reference
For contour monitoring you define part of the protective safety field
as
a contour segment
. Within the contour segment a tolerance band is
defined. This comprises a positive
and a negative tolerance band.
The OSSDs on the SafeZone safety laser scanner change to the off status
if
• There is an object in the protective safety field.
• The room contour changes by more than the tolerance band (in the
example by opening the door or by changing the position of the
SafeZone safety laser scanner).
Vertical operation
In vertical operation (for access protection and hazardous point
protection) according to IEC/EN 61496-3 you must always configure and
activate the contour as reference function. If the radius of a protective safety
field exceeds 4 meters, then it must be ensured that changes to the
positioning of the safety laser scanner resulting in a movement of the
protective safety field of more than 100 mm are detected.
Application
60 ms Basic Response Time 120 ms Basic Response Time
Stationary
30 mm (hand detection)
1.90 m
2.80 m
40 mm (hand detection)
2.60 m
3.80 m
50 mm (leg detection)
3.30 m
4.80 m
70 mm (leg detection)
4.70 m
5 m
150 mm (body detection)
5 m
5 m
Mobile
70 mm (leg detection)
4.7 m
5 m
Application
60 ms Basic Response Time 120 ms Basic Response Time
Stationary
30 mm (hand detection)
1.90 m
2.80 m
40 mm (arm detection)
2.60 m
3.80 m
50 mm (leg detection)
3.30 m
4.00 m
70 mm (leg detection)
4.00 m
4.00 m
150 mm (whole body
4.00 m
4.00 m
Mobile
70 mm (leg detection)
4.00 m
4.00 m
IMPORTANT
If the application involves multiple
sampling, that basic response time
may require added supplements. Refer
to Section 11.2 “OSSD response times”
(page 42) for more information.
IMPORTANT
You can define any number of contour
segments. The contour segments must
not be narrower than the configured
resolution. At the points where a
contour has been configured as a
reference you cannot define a warning
field.
You define the contour as a reference in the SCD
field set editor: Device symbol SafeZone safety laser
scanner, command Edit field sets… In the field set
editor window. Tools menu. Add contour command.
Recommendation
Use vertical passage limits at the side (e.g.
door frames) and the floor as the reference. If
in this case the position of the SafeZone
safety laser scanner is changed in one or
more planes, the distance to the reference
changes and the SafeZone multizone safety
laser scanner switches its OSSDs to the OFF
state.