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5.5 Access
protection
Please have regard to the general safety notes in Chapter 3.
5.5.1
The object of protection is the safeguarding
The
SD3-A1
will detect the passage of individuals and the intrusion of an entire human
body into the scanning field of the laser scanner.
5.5.2
Access protection is based on passage monitoring. This is a suitable system when the
access to a machine or to a hazardous zone can be precisely defined in structural terms,
and there is no other unprotected access to the area. In addition, the danger area must
be open to inspection, and the button for manual triggering of the restart interlock must
be situated outside the area. It is best if the laser scanner is firmly installed above the
passage in question, in vertical alignment and in such a way that it cannot be manipulated.
Care must be taken to ensure that the positioning of the laser scanner
SD3-A1
does not
leave any areas through which a person might slip through without being detected. The
distance of the scanning field limiting the passage and the boundaries of the detection
zone must be defined in such a way that no gaps measuring more than 150mm can arise.
5.5.3
To safeguard the protective equipment against inadvertent misadjustment or
manipulation, the detection zones of the
SD3-A1
must be defined on the basis of a
reference boundary. In addition, the response time must be defined as 80ms and the
restart interlock must be set.
To enable the system to recognize an entire human body, the laser scanner must have a
resolution of 150mm. These safety-related settings will be automatically enabled in the
SD3SOFT
configuration and diagnosis software when the presetting ”Passage
monitoring” has been selected.
For effective passage monitoring, a safety distance S must be observed between the
detection zone of the laser scanner and the danger zone. The
SD3-A1
can fulfill its
protective function only if it has been installed and positioned in such a way as to allow for
an adequate safety distance. The safety distance ensures that no body part whatever can
reach the danger point until the hazardous movement of the machine has come to a
complete standstill.
Object of protection
Installation position
Safety-relevant settings, and calculation of the safety distance
x
of individuals when they access a danger zone.
Summary of Contents for SD3-A1
Page 1: ......
Page 12: ...12...
Page 40: ...40 Fig 5 4 5 Considering the maximum measurement distance when safeguarding an area...
Page 60: ...60 Fig 6 2 1 Example of a zone pair changeover for an AGV on a curved route...
Page 61: ...61 Fig 6 2 2 Example of zone pair changeover with combined with reducing speed of the AGV...
Page 101: ...101 13 13 Dimensional drawings of the SD3 A1...
Page 102: ...102 13 14 Dimensional drawings of the mounting system...
Page 106: ......
