Pilz PSEN op2 Série Manuel D'utilisation page 74

Operating Manual
•
A blow-out fuse with a rated interruption current of 500 mA should
be fitted between the connection for the external control lamp for
active muting and the receiver RX. The LED must be positioned in
such a way that it is visible from all sides of the work area.
•
If evaluation devices or a supply voltage are connected without safe
separation, the light barrier must be operated in protection class 1.
In this case, the transmitter and receiver must be labelled with the
protective earth symbol and must be earthed using a special screw.
Both are supplied with the unit. The special screw replaces one of
the cover screws.
Information about the muting function, its application and the
positioning of the sensors to activate the function can be found in Ch. 6
"Operating mode".
NOTE: If muting is not required, the connection cable wires
from Pins 3, 4 and 8 on the receiver must be isolated.
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PSEN op 2/4 Series