Pilz PSSu H PLC1 FS SN SD - Manual (Page 19)

Wiring
Operating Manual PSSu H PLC1 FS SN SD(­T)(­R)
21939­EN­10 19
7 Wiring
7.1 General wiring guidelines
Please note:
} The requirements of the supply voltages can be found in the chapter entitled "Technical
Details".
} Protective separation must be ensured for the external power supplies that generate
the supply voltages. Failure to do so could result in electric shock.
} The external power supplies must comply with the current applicable standard EN
60950­1, EN 61140, EN 50178 or EN 61558­1.
} The maximum current load for the periphery supply on the module bus is 10 A. Please
refer to the derating diagram in the chapter entitled "Function Description".
} Earth the 0 V supply on the periphery supply or monitor each supply group for earth
faults.
} The connection of the 0 V supply to the central earth bar or earth fault monitor must be
in accordance with relevant national regulations (e.g. EN 60204­1, NFPA 79:17­7,
NEC: Article 250).
} Details of the minimum range for conductor cross sections on connection terminals can
be found in the section entitled "Technical Details".
} Use copper wiring.