Wiring
Operating Manual PSSu E F PS(-T)
21292-EN-06
22
6
Wiring
6.1
General wiring guidelines
Please note:
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The requirements of the supply voltages can be found in the chapter entitled "Technical
Details".
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Protective separation must be ensured for the external power supplies that generate
the supply voltages. Failure to do so could result in electric shock.
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The external power supplies must comply with the current applicable standard EN
60950-1, EN 61140, EN 50178 or EN 61558-1.
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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".
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Earth the 0 V supply on the periphery supply or monitor each supply group for earth
faults.
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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 60204-1, NFPA 79:17-7,
NEC: Article 250).
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Details of the minimum range for conductor cross sections on connection terminals can
be found in the section entitled "Technical Details".
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Use copper wiring.
6.1.1
Mechanical connection of the base modules
Procedure:
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Use a flat blade screwdriver (DIN 5264-A)!
DIN 5264-A
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Strip the wire back 8 mm.
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If necessary, label the connection level with a colour marker [3].
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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.
