Series Connection - Pilz PSEN sc M 3 Series Operating Manual

Function description
4.1.2

Series connection

In a series connection, each of the connected safety laser scanners monitors the area that
is covered by the light beam emitted from the safety laser scanner.
Fig.: Operating principle safety laser scanner with series connection
Legend
[1] Danger zone
[2] Area covered by the laser beam
[3] Safety laser scanner
[4] Safety zone
[5] Warning zone
The areas can be subdivided independently of each other for every safety laser scanner in
a safety zone and a warning zone.
When an object or a person intrudes into the warning zone or safety zone, the status of the
relevant safety laser scanner is changed, shown in the display and signalled to the master.
Depending on the violated zone, the master triggers the actions provided for the violated
zone.
For a violated safety zone, the OSSDs switch to the OFF state, for a violated warning zone
an indicator light unit can be switched on, for example.
Operating Manual PSEN sc M 3/5 series
1005055-EN-02
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