4.9 Muting
4.9.1 Description
Muting is an optional safety function that temporarily suspends the safety functions. Motion detection is disabled
and therefore the control unit maintains the safety outputs activated even when the sensors detect motion in a
detection field.
The muting function must be enabled and then it is automatically activated when conditions permit it.
4.9.2 Muting enabling
The muting function can be enabled through digital input (see "Enable muting signal characteristics" on the next
page) or safety Fieldbus (if available).
WARNING! If the muting function has been enabled both through the safety Fieldbus and the digital
inputs, the digital inputs prevail over the Fieldbus.
Through the safety Fieldbus (if available) the muting function can be enabled for each sensor singularly.
Through digital input the muting function can be enabled for all the sensors simultaneously or only for a group of
sensors. Up to two groups can be configured, each associated with a digital input.
Through the Inxpect Safety application, the following must be defined:
l
for each input, the group of managed sensors
l
for each group, the sensors that belong to it
l
for each sensor, whether it belongs to a group or not
Note
: if the muting function is enabled for one sensor, it is enabled for all the detection fields of the sensor,
regardless the detection fields are dependent or independent and the anti-tampering functions are disabled for
that sensor.
See "Configure the inputs and outputs" on page 52.
4.9.3 Muting activation conditions
The muting function is activated on a specific sensor only when all the involved detection fields are free of motion
and the restart timeout has expired for all of them.
When the muting is enabled for a group of sensors, the function is activated for each sensor as soon as there is no
detection in its monitored area, independently of the other sensors.
WARNING! Enable the muting signal only when the detection signals of all the sensors of the group
are in ON-state. Or if the sensors belonging to different groups but monitoring the same area, are in
ON-state.
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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Summary of Contents for SBV System Series
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