Project configuration
Operating Manual PSEN sc M 3.0/5.5 08-17
1005387-EN-05
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6.11 Planning of safety and warning zones and zone sets
} Specify the location and the size of the safety zone and the warning zone in accordance
with the safety assessment.
} Specify in what situations the switching operation of the zone sets are to take place.
6.12 Switchover time with zone selection
WARNING!
Loss of the safety function by switching the monitoring too late
Depending on the application, serious injury or death may result.
Switching the monitoring of zone sets too late results in the loss of the
safety function. There may be people in the safety zone before switching.
– Use switching of monitoring in time or overlapping zone sets to en-
sure that no person is in the safety zone when this area changes to a
danger zone.
The zone selection is performed by signals that are present at the control inputs. For the
changeover process a maximum switchover time (input delay in PSENscanConfigurator) is
defined. For this time, not permitted signals may be present at the entrances to the zone
selection. After the switchover time has elapsed, a valid code for a zone must be present at
the inputs for zone selection. The switchover time can be adjusted in increments of 30 ms,
and it must be adapted to the performance of the control system.
Select the time where the control system can switch an input in a defined way.
} Avoid switchover times that are too short.
– Firmware version from 3.1.5: Avoid switchover times <= 90ms (processing time +
min. input delay) for switching between two zone sets.
– Firmware version < 3.1.5: Avoid switchover times <= 280ms (processing time + min.
input delay) for switching between two zone sets.
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