A validation procedure (see "Validate the safety functions" on page77) 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:
l
Increase the Restart timeout parameter.
l
Change the position of the sensors.
l
Add more sensors.
If one or more of the above actions are taken, it is recommended to perform a validation procedure (see "Validate
the safety functions" on page77).
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.
5.5.2 Types of managed restart
NOTICE: it is the responsibility of the machinery manufacturer to assess if automatic restart can guarantee the
same level of safety as manual restart (as defined in standard EN ISO 13849-1:2015, section 5.2.2).
For each detection field independently, the system manages three types of restart:
Type Conditions for enabling machinery restart
Safety working
mode allowed
Automatic The time interval set through the Inxpect Safety application (Restart
timeout) has passed since the last motion detection*.
All
Manual The Restart signal was received correctly** (see "Restart signal
(dual channel, redundancy mode coherent)" on page125).
Always-on access
detection
Safe manual
l
The time interval set through the Inxpect Safety application
(Restart timeout) has passed since the last motion detection*
and
l
The Restart signal was received correctly** (see "Restart signal
+ System recondition (dual channel, redundancy mode coherent)"
on page128).
Access detection
and restart
prevention
WARNING! If the Automatic restart is set with the Safety working mode Always-on access detection,
the restart prevention safety function is not performed, and consequently, the system does not
guarantee the detection of a person within the monitored area.
Note*: machinery restart is enabled if no motion is detected up to 35 cm (13.8 in) beyond the detection field.
Note**: (for all types of restart) other dangerous system statuses may prevent the restart of the machinery (e.g.,
diagnostic fault, sensor masking, etc.)
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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