Function description
Operating Manual PSEN sc ME 5.5 08-17
1005388-EN-01
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A test is performed to see that the N/C contacts switch if the state of the OSSDs changes
and so is used to monitor and detect malfunctions on the contactors. If a malfunction is de-
tected, the safety laser scanner switches to a safe condition and stops the connected ma-
chine. This check is carried out each time the OSSDs are triggered and before restarting.
The EDM function is available:
} Only when using the 12-pin connection
} Only for the OSSD pairs 1 and 2.
Fig.: Timing diagram for EDM
Legend
t
1
After the OSSD outputs are switched on, the EDM circuit must open within 350 ms
t
2
After the OSSD outputs are switched off, the EDM circuit must close within 100 ms
Use control elements whose dynamics match the times stated at t
1
and t
2
.
The function is activated or deactivated with the Wiring [ 54].
4.12 Wave
With the wave function, a safety laser scanner that is to be configured in a network can be
identified more easily from its position.
When starting the automatic search for a safety laser scanner in a network the wave button
can be selected.
The device found registers with the flashing message in the display.
4.13 Rest condition
In a rest condition the functions of the safety laser scanner are deactivated to save energy.
This enables the use of the safety laser scanner with a supply voltage by battery (e.g. in an
automated guided vehicle system).