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5.7.7
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 AGV, since it prevents the surrounding contour from being detected as relevant for
generating a switch-off signal due to a measurement error.
Furthermore, the dust algorithm of the SIMATIC FS600 Laser Scanner can be
implemented if floating particles may be present in the area. This algorithm can be
activated in the user program “SIMATIC FS600 Parameterization Software LS4soft” and
prevents the AGV 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.
If parameters are set for the function “Manual restart”, the required enable from the
startup/restart button affects all detection zones and is independent of any detection
zone changeover. If the current detection zone is manually enabled, this enable also
applies even if the system switches to another detection zone and this detection zone
becomes free! If startup/restart interlock is in effect in the current detection zone, it is
also in effect for the other detection zone to which the system switches even if this
detection zone is free.
5.7.8
Restart
At least 2 seconds must elapse following the release of a violated detection zone before
the AGV is allowed to start up again (in accordance with DIN EN 1525). The restart can
be initiated either manually or automatically. In case of automatic restart, the delay time
of up to 10 s can be set in advance using the program “SIMATIC FS600
Parameterization Software LS4soft”. If a restart button is provided, it must be mounted
outside the danger zone at a position from which the entire danger zone can be viewed.
The areas that will be released must also be referred to in an easily understandable
manner. The startup/restart interlock affects all detection zones and does not depend on
any detection zone changeovers.
Please comply with the safety notes in Chapter 3 and Chapter 5.7.7.
SAFETY NOTES
Automatic startup / restart must only be used in cases where there is absolutely no
possibility that the effective detection zone could be entered or bypassed in some
other way. Depending on the hazard assessment, visual and / or acoustic startup
warnings should be provided.
Summary of Contents for SIMATIC FS600
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