40
5.4.5
Additions
The axis of the rotating mirror (midpoint of the scanner) is of critical importance when
configuring the detection zones. This axis is assigned a value of 64 mm from the front
edge of the scanner when calculating detection zones.
Add
83 mm
or
100 mm
for the maximum radial measurement error Z
SM
as described in
Add an addition Z
REFL
as described in Chapter 5.3.5 if reflectors could be present in the
area.
Please note that safety additions must principally be added to the safety distance
throughout the entire detection zone.
In other words, additions may not be added to just one side or only to certain sections.
Please consult the operating instructions provided by the machine or system
manufacturer.
5.4.6
System Availability
There must be a buffer distance of 83 mm between the surrounding contour and the
detection zone contour (including the additions). This distance increases the up-time of
the machine or system since it prevents the surrounding contour from being detected as
relevant for generating a switch-off signal. If there is an undercut across from the
scanner that is impossible for a person to step beneath (see Fig. 5.4-4), the depth of the
undercut can be calculated according to the following formula:
Z
UMIN
= Z +83 mm - d
Z
UMIN
= Depth of the undercut, in mm
Z
= Required detection zone additions, in mm
d
= Resolution of the scanner (d = 70 mm)
This is possible since it is absolutely certain that a person will be detectedin front of the
undercut .
Furthermore, the dust algorithm of the SIMATIC FS600 Laser Scanner can be
implemented if floating particles may be present in the area. This algorithm, which can
be activated in the user program “SIMATIC FS600 Parameterization Software LS4soft”,
prevents the machine or system from being switched off unintentionally. Please note
Chapter 5.3.5.
If the danger zone analysis allows a multiple evaluation, detection errors caused by
floating particles can be decreased. The number of evaluations that is decisive for the
response time of the scanner (T
SCAN
), and thus also requires a larger detection zone,
can be set in the user program “SIMATIC FS600 Parameterization Software LS4soft”.
In the event of an error event that lasts only briefly (for example the effect of extraneous
light) the scanner performs a one-time reboot. If automatic startup and restart are
activated, the scanner turns the OSSDs back on after this brief error event, and after the
detection zone has been free for about 25 seconds. This one-time reboot results in an
additional increase in availability. This function does not have any effect if detection zone
activation is faulty. If startup test, startup interlock and / or manual restart are included,
they will not be removed.
Summary of Contents for SIMATIC FS600
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