Project configuration
Operating Manual PSEN sc B 5 Series
1004508-EN-02
26
5.9 Switchover time with zone selection
The zone selection is done by digital signals that are controlled by the control system. For
the changeover process a maximum switchover time (input delay in PSENscanConfigur-
ator) is defined. For this time, non-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.
5.10 Determining the moment of switchover
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 means that a person is in
the safety zone even 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
hazardous area.