Inxpect SRE 200 Series - 5.4 Restart prevention function: static object detection option; 5.5 Features of the restart prevention function

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Inxpect SRE 200 Series| Instruction manual v1.5 DEC 2023 |Inxpect SAF-IM-200S_5m_7_00047_en_v1.5|© 2021-2023 Inxpect SpA
5. Safety functions
WARNING! If the Always-on access detection is selected, additional safety measures must be
introduced to ensure the restart prevention function.
5.3.2 T
OFF
parameter
If the safety working mode is Always-on access detection, when the system does not detect motion anymore,
the OSSD outputs remain in OFF-state for the time set in the T
OFF
parameter.
The T
OFF
value can be set from 0.1 s to 60 s.
5.4 Restart prevention function: static object detection option
5.4.1 Introduction
The static object detection option allows the restart prevention function also to detect static objects in the
dangerous area.
NOTICE: the ability to detect an object depends on the RCS of the object. The static object detection option does
not guarantee 100% detection of static objects.
5.4.2 Availability
The static object detection option is available for:
l
control unit firmware version 1.5.0 or later, and
l
sensor firmware version 3.0 or later.
5.4.3 Possible applications
This option can be useful if the sensor is installed on moving elements (see "Installations on moving elements
(Mobile application)" on page63) or to prevent the restart of a robot that could bump into a static object in the
area temporarily.
5.4.4 Operation
The option can be enabled for each detection field of each sensor with the safety working mode set to Access
detection and restart prevention. Enable the option only if the detection field is free of static objects; otherwise,
the system would never reactivate the detection signals after a motion is detected in the area.
5.4.5 Settings
It is possible to increase or decrease the sensitivity of the static object detection of the sensors through the
Inxpect Safety application (Settings > Advanced > Static object detection sensitivity)
5.4.6 Restart timeout parameter
With the static object detection option enabled, the Restart timeout parameter's minimum value is 0.1 s.
WARNING! If the Restart timeout is set to a value less than 4 s, the sensor is no longer able to
detect breathing movement or the movements necessary for a person to remain in balance in an
upright or a squatting position. Set a value less than 4 s only for areas where people have no access.
5.5 Features of the restart prevention function
5.5.1 Sensor positioning guidelines
The restart prevention function is effective if the sensor can detect a person’s movements or their static residual
movements. To detect people who are not standing or squatting, it is important that the sensor can clearly detect
the person’s chest.
Particular attention should be paid to the following situations:
l
There are objects that limit or prevent the sensor from detecting motion.
l
The risk assessment requires the detection of a lying person and the sensor is installed at a height below
2.5 m (8.2 ft) or with an inclination lower than 60° downward.
l
The sensor does not detect a sufficient portion of the body or does not properly detect the person’s chest.