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LBK System Series| Instruction manual v1.2 SET 2021 |SAF-UM-LBKBus-en-v1.2|© 2020-2021 Inxpect SpA
3. Get to know LBK System Series
The available functions are the following:
l System diagnostic signal: switches the selected output to OFF-state when a system fault is detected and
switches all the OSSD related to detection signals, if any, to OFF-state.
l Muting enable feedback signal: switches the selected output to ON-state in the following cases:
o
when a muting signal is received over the configured input and at least one group is in muting
o
when a muting command is received through Fieldbus communication (if available) and at least one
sensor is in muting
l Detection signal 1: (e.g. alarm signal) switches the selected output to OFF-state when a sensor detects a
motion in detection field 1, when a stop signal is received from the related input or when there is a system
failure. The selected output remains in OFF-state for at least 100 ms.
Note: when an OSSD is configured as detection signal 1, a second OSSD is automatically assigned to it to
provide a safe signal.
l Detection signal 2: (e.g. warning signal) switches the selected output to OFF-state when a sensor detects
a motion in detection field 2, when a stop signal is received from the related input or when there is a
system failure. The selected output remains in OFF-state for at least 100 ms.
Note: when an OSSD is configured as detection signal 2, a second OSSD is automatically assigned to it to
provide a safe signal.
l Fieldbus controlled (if available): allows the specific output to be set through the Fieldbus communication.
l Restart Feedback signal: switches the selected output to ON-state when it is possible to restart at least
one detection field (Restart signal).
o
If all the used detection fields are configured as automatic restart prevention (in Settings > Restart
parameters), the dedicated output is always in OFF-state;
o
If at least one detection field in use is configured as manual or safe manual restart prevention (in
Settings > Restart parameters), the dedicated output remains in OFF-state as long as motion is
detected; then it is activated (ON-state) if there is no more motion within at least one detection field.
The ON-state lasts as long as the absence of motion within one or more detection field does and until
the restart signal is activated on the dedicated input.
l Acquisition Trigger: manages a specific signal which allows using Multi-control unit Synchronization (for
details, see "Multi-control unit Synchronization" on page47).
Each output status can be retrieved by Fieldbus communication (if available).
The system installer can decide to configure the system as follows:
l two dual channel safety outputs (e.g. Detection signal 1 and Detection signal 2, usually alarm and warning
signals), or
l one dual channel safety output (e.g. Detection signal 1) and two single channel output (e.g. System
diagnostic signal and Muting enable feedback signal), or
l each output as a single output (e.g. System diagnostic signal, Muting enable feedback signal and a Restart
Feedback signal).
The dual channel safety output is automatically obtained by the Inxpect Safety application and it only matches
the single OSSD outputs as follows:
l OSSD 1 with OSSD 2
l OSSD 3 with OSSD 4
In the dual channel safety output, the output status is the following:
l activated output (24 V dc): no motion detected and normal functioning
l deactivated output (0 V dc): motion detected in the detection field or failure detected in the system
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