Function description
Operating Manual PSEN op2B/1 Series
1003357-EN-02
17
t
24 V
0 V
EDM
Status of OSSD
Normal
operation
Safe
condition
T
c
T
0
Fig.: Timing diagram EDM
T
c
≥ 350 ms
After the OSSD outputs are switched on, the EDM circuit must open
within 350ms
T
0
≥ 100 ms
After the OSSD outputs are switched off, the EDM circuit must close
within 100ms
Use control elements whose dynamics match the times stated at T
c
and T
0
.
The function is controlled via DIP switches 3 and 7 (see
Setting the functions [
42]
).
4.5
Muting
If the safety light grid is equipped with separate muting sensors, the muting function can be
used to overwrite the safety light grid during operation, subject to special operating condi-
tions.
}
Example of a special operating condition:
– Material is transported into the protected field on a conveyor and the safety light
grid is overridden for the time it takes the material to pass through
Muting proves to be particularly suitable when, under certain operating conditions, an object
is permitted to pass through the danger zone but a person is not.
The following diagrams illustrate application examples for the three product types.
