4
5 Electrical connection
The unit must be connected by a qualified electrician�
►
The national and international regulations for the installation of electri-
cal equipment must be adhered to�
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Ensure voltage supply to EN 50178, SELV, PELV�
The following indications apply if there is a UL listing mark on the product:
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For use in NFPA 79 applications only� Adapters providing field wiring
means are available from the manufacturer� Refer to manufacturers
information�
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The device shall be supplied from an isolating transformer having a
secondary Listed fuse rated
a) max 5 amps for voltages 0���20 Vrms (0���28�3 Vp) or
b) 100/Vp for voltages of 20���30 Vrms (28�3���42�4 Vp)�
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Disconnect power�
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Connect the unit as follows:
DC PNP
pin 1 = L+
pin 3 = L-
pin 4 = OUT / IO-Link
DC NPN
pin 1 = L+
pin 3 = L-
pin 4 = OUT / IO-Link
