REFERENCE POINTS MONITORING SETTINGS
INSTRUCTION MANUAL
63
REFERENCE POINTS MONITORING SETTINGS
Reference points monitoring is a safety function used to monitor any change in position
of the scanner, a protective structure or a moving structure located at the specified ref-
erence points. These structures either allow or prevent access to the dangerous area
and ar
e therefore outside the monitored Safety Zone.
When the device detects a change in position a
t the Reference Points exceeding the
specified tolerance, the OSSD goes to the OFF-state. This function is required for Vertical
applications.
Example application for movable structure protection
When the reference points (minimum 3), are set on the position of a movable structure,
such as a door, the OSSD goes to the OFF-state if the Laser Sentinel detects a change in
the position of the door.
Example application for protective structure protection
When protective structures such as mechanical guards or barriers are used in combina-
tion with the safety laser scanner, undetected access to the dangerous area could be
c
ompromised if some event occurs which moves the position of the protective struc-
ture. To avoid this, Reference Points can be set on the protective structures to monitor
the
ir position. The OSSD goes to the OFF-state in case of a position change of the pro-
tective structure.
Example of reference points
As shown in the figure above, three or more reference points must be set on each struc-
ture to detect its position change. Three reference points are set on three structures
(p
rotective structure 1, protective structure 2 and the floor) for a total of nine points (A
to I).
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