Connecting-up
5.1 Permissible line supplies
Power Module PM240-2
44 Hardware Installation Manual, 01/2017, A5E33294624B AE
Permissible line supplies
The converter is designed for the following line supplies according to IEC 60364-1 (2005).
● N system
● TT system
● IT system
General requirements on line supply
The plant builder or machine manufacturer must ensure for operation with rated current I
rated
that the voltage drop between the transformer input terminals and the inverter when
operated with its rated values is less than 4% of the transformer rated current
Restrictions for installation altitudes above 2000 m
Above an installation altitude of 2000 m, the permissible line supplies are restricted.
Restrictions for special ambient conditions (Page 93)
transfers the PE protective
conductor to the installed plant or system
using a cable.
Generally, in a TN line system the neutral
point is grounded. There are versions of a
TN system with a grounded line conductor,
e.g. with grounded L1.
an transfer the neutral
conductor N and the PE protective conductor
either separately or combined.
Inverter operated on a TN line system
● Inverter with integrated or external line filter:
– Operation on TN line systems with grounded neutral point permissible.
– Operation on TN line systems with grounded line conductor not permissible.
● Inverter without line filter:
– Operation on all TN line systems ≤ 600 V permissible
– Operation on TN line systems > 600 V and grounded neutral point permissible.
– Operation on TN line systems > 600 V and grounded line conductor not permissible.
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