Working Mode: Always-On Restart Prevention; Features Of The Restart Prevention Function - Inxpect Value Line Instruction Manual

5.3 Working mode: Always-on restart prevention

5.3.1 Protective function: restart prevention
This is the only protective function available for the Always-on restart prevention, that is on S188A-X3 sensor.
The restart prevention allows what follows:
When...
no motion is detected in the detection field
motion 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*, provided that the
guidelines described in "Sensor positioning guidelines" below 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 38).
5.3.2 Restart timeout parameter
When the system does not detect motion anymore, the OSSD outputs remain in OFF-state for the time set in the
Restart timeout parameter.
The default value is 10 s while the maximum value is 60 s.

5.4 Features of the restart prevention function

5.4.1 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:
There are objects that limit or prevent the sensor from detecting motion.
l
The detection of a lying person is required.
l
The sensor does not detect a sufficient portion of the body or does not properly detect the person's chest.
l
A validation procedure (see "Validate the protective functions" on page 59) must be performed when one or more
of the above conditions are met.
If the conditions described above limit the performance of the sensor, take the following steps to reach an
appropriate level of performance:
Increase the Restart timeout parameter.
l
Change the position of the sensors.
l
Add more sensors.
l
If one or more of the above actions are taken, it is recommended to perform a validation procedure (see "Validate
the protective functions" on page 59).
Below are some examples of situations where the above conditions are not met (X) and how to properly position
the sensor (✓). These examples are not meant to be exhaustive.
Inxpect Value Line | Instruction manual v1.0 FEB 2025| Inxpect VL-IM-7_00375_en_v1.0 | © 2025 Inxpect SpA
Then...
the outputs remain active
the restart prevention function remains active
l
the outputs are deactivated
l
5. Protective functions
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