Inxpect SRE 200 Series - 5.2 Safety working mode: Access detection and restart prevention (default); 5.3 Safety working mode: Always-on access detection

5.2 Safety working mode: Access detection and restart
prevention (default)
5.2.1 Introduction
This safety working mode is composed of the following safety functions:
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access detection
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restart prevention
5.2.2 Safety function:access detection
Access detection allows what follows:
When... Then...
no motion is detected in the detection field the safety outputs remain active
motion is detected in the detection field (see "Access
detection speed limits" on the previous page)
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the safety outputs are deactivated
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the restart prevention function is activated
5.2.3 Safety function:restart prevention
The restart prevention function remains active and the safety outputs deactivated as long as motion is detected
in the detection field, or, with the static object detection option enabled (see "Restart prevention function: static
object detection option" on the next page), as long as a static object is detected in the detection field.
The sensor can detect micro-movements of just a few millimeters, such as breathing movements (with normal
breathing or a short apnea) or the movements necessary for a person to remain in balance in an upright or
squatting position.
The system sensitivity is higher than the sensitivity that characterizes the access detection function. For this
reason, the system reaction to vibrating and moving parts is different.
The sensor guarantees the detection of people moving at any speed from 0 up to 1.6 m/s (5.25 ft/s)*, provided
that the guidelines described in "Sensor positioning guidelines" on the next page are fulfilled.
Note*: a stationary person still has static residual movements that the radar can detect.
WARNING! When the restart prevention function is active the monitored area may be affected by the
position and inclination of the sensors, as well as by their installation height and angular coverage
(see "Sensor position" on page53).
5.2.4 Restart timeout parameter
When the system does not detect motion anymore or, with static object detection option enabled, no static object
is detected, the OSSD outputs remain in OFF-state for the time set in the Restart timeout parameter.
The default and minimum certified value is 4 s (Certified Restart Timeout, CRT) while the maximum value is 60 s.
WARNING! The static object detection option allows reducing the value of the Restart timeout
parameter and therefore it might affect the reliability of the restart prevention function (see "Restart
timeout parameter" on the next page).
5.3 Safety working mode: Always-on access detection
5.3.1 Safety function:access detection
This is the only safety function available for the Always-on access detection. Access detection allows what
follows:
When... Then...
no motion is detected in the detection field the safety outputs remain active
motion is detected in the detection field
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the access detection function remains active
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the safety outputs are deactivated
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the sensitivity remains as it was before the motion
detection
5. Safety functions
Inxpect SRE 200 Series | Instruction manual v1.5 DEC 2023|Inxpect SAF-IM-200S_5m_7_00047_en_v1.5|© 2021-2023 Inxpect SpA
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