Function description
Operating Manual PSEN sc L 3/5 series
1005056-EN-01
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CAUTION!
Risk of injury due to loss of the safety function
In muting status, the OSSDs continue to be in ON state. The connected ma-
chine remains in operation and represents a potential hazard.
– Prevent access to the danger zone during muting.
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The muting state is shown by the muting lamp and in the display of PSEN sc L 3/5 series.
The muting lamp must be connected to the PSEN sc L 3/5 series and positioned so that
the muting lamp is clearly visible form the whole danger zone.
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Use a muting lamp with an LED lamp and a max. current consumption of 250 mA.
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If the muting lamp is defective, the muting function cannot be activated. Any attempt to
activate the function will immediately trigger the PSEN sc L 3/5 series and instantly switch
off the OSSDs; the muting lamp fault indicator will also light.
4.10
Override
With the override function, a machine can be restarted even though the safety zone is viol-
ated by material.
The aim is to clear the danger zone of any material that may have accumulated due to a
fault in the operating cycle.
If there is a pallet in the safety zone, for example, and the conveyor can no longer be
switched on because the safety laser scanner is keeping the OSSDs switched off (because
the safety zone is not free), the accumulated material cannot be transported away from the
zone.
Activating the override function allows intervention and enables the conveyor to be restar-
ted.
The safety laser scanner has two connections for override, which are connected via N/O
contacts at 24 VDC (Override 1) and 0 VDC (Override 2). Both contacts are closed if the
override function is activated.
Automatic ending of override function
The override function is ended automatically when one of the following conditions is met:
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Muting timeout has elapsed
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The conditions necessary for activation are no longer present.
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Max. duration of override function has elapsed: After 120 s, the safety laser scanner
switches back to its normal operating status.
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No muting sensor is active
}
Safety zone is not violated
