4.4.4 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 value is 4 s, the maximum is 60 s and the minimum is the CRT (Certified Restart timeout).
WARNING! The static object detection option affects the value range of the Restart timeout
parameter and therefore the operation of the restart prevention function. For more information, see
"Restart timeout parameter" on the next page
The parameter is valid only for the restart prevention function.
4.5 Safety working mode: Always access detection
4.5.1 Safety function: access detection
This is the only safety function available for the
Always 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
l
the access detection function remains active
l
the safety outputs are deactivated
l
the sensitivity remains as it was before the motion
detection
WARNING! If the Always access detection is selected, additional safety measures must be
introduced to ensure the restart prevention function.
4.5.2 T
OFF
parameter
If the safety working mode is
Always 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.
4.6 Safety working mode: Always restart prevention
4.6.1 Safety function: restart prevention
This is the only safety function available for the
Always restart prevention
.
The restart prevention allows what follows:
When...
Then...
l
no motion is detected in the detection field, and
l
with the static object detection option enabled (see
"Restart prevention function: static object detection
option" on the next page), no static object is
detected in the detection field
the safety outputs remain active
l
motion is detected in the detection field, or
l
with the static object detection option enabled (see
"Restart prevention function: static object detection
option" on the next page), a static object is
detected in the detection field
l
the safety outputs are deactivated
l
the restart prevention function remains active
l
the sensitivity remains as it was before
motion/static object detection
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.
4. Functioning principles
SBV System Series | Instruction manual v1.2 DEC 2021| SAF-UM-SBVBus-en-v1.2 | © 2021 Inxpect SpA
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