Leuze electronic LBK SBV Original Operating Instructions page 25

4 Get to know LBK SBV System
o If all the used detection fields are configured as automatic restart prevention (in Settings >
Restart function), the selected output is always in OFF-state;
If at least one detection field in use is configured as manual or safe manual restart prevention (in
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Settings > Restart function), the selected 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 selected input.
Static object detection feedback signal: switches the selected output to ON-state when at least one
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sensor detects a static object and no moving targets in one of its detection fields. The selected output
remains in ON-state for at least 100 ms.
Each output status can be retrieved by Fieldbus communication (if available).
The system installer can decide to configure the system as follows:
two dual channel safety outputs (e.g. Detection signal 1 and Detection signal 2, usually alarm and
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warning signals)
one dual channel safety output (e.g. Detection signal 1) and two single channel output (e.g. System
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diagnostic signal and Muting enable feedback signal)
each output as a single output (e.g. System diagnostic signal, Muting enable feedback signal and
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Restart feedback signal)
To use LBK SBV System for a category 3 safety system, both the channels of a safety output
must be connected to the safety system. Configuring a safety system with only one channel
safety output may result in serious injuries due to an output circuit fault and a failure of the
machine to stop.
The dual channel safety output is automatically obtained by the LBK Designer application and it only
matches the single OSSD outputs as follows:
OSSD 1 with OSSD 2
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OSSD 3 with OSSD 4
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In the dual channel safety output, the output status is the following:
activated output (24 V DC): no motion detected and normal functioning
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deactivated output (0 V DC): motion detected in the detection field or failure detected in the system
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Idle signal is 24 V DC, periodically shortly pulsed to 0 V (pulses are not synchronous) for the receiver to
detect shortcut to either 0 V or 24 V.
The pulse duration at 0 V (T
> Digital Input-Output > OSSD Pulse width).
Note: the devices connected to the OSSD should not respond to these temporary, self-diagnostic 0 V
pulses of the signal.
Leuze electronic GmbH + Co. KG
WARNING
) can be set at 300 μs or 2 ms through the LBK Designer application (Settings
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Sensor LBK SBV 25