Pilz PSSu E F PS2 - Manual (Page 19)

Wiring
Operating Manual PSSu E F PS2(­T)(­R)
1002237­EN­03 19
6 Wiring
6.1 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.
6.1.1 Mechanical connection of the base modules
Procedure:
} Use a flat blade screwdriver (DIN 5264­A)!
DIN 5264-A
} Strip the wire back 8 mm.
} If necessary, label the connection level with a colour marker [3].
} Base module with screw terminals:
– Use a screwdriver to loosen the screw on the screw terminal [1]
– Insert the stripped cable into the round fixing hole [2], as far as it will go.
– Tighten up the screw on the screw terminal.
– Check that the cable is firmly seated.