Mains And Motor Connection; Permissible Line Supplies - Siemens sinamics g120 Hardware Installation Manual

Connecting

4.1 Mains and Motor Connection

4.1 Mains and Motor Connection
Inverter terminal layout see Line and motor terminals (Page 39).
For all connections, carefully observe the regulations relating to electromagnetic
compatibility, also see EMC-compliant installation (Page 41).
4.1.1

Permissible line supplies

The inverter is designed for the following power distribution systems according to IEC 60364-
1 (2005).
Above an installation altitude of 2000 m, the permissible line supplies are restricted. See
also: Restrictions for special ambient conditions (Page 68).
TN line system
A TN line system 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 line
supply with a grounded line the conductor, e.g. with grounded L1.
A TN line system can transfer the neutral conductor N and the PE protective conductor either
separately or combined.
Preconditions and restrictions when connecting an inverter to a TN line system
● Inverter with integrated or external line filter:
– Operation on TN line supply systems with grounded neutral point permissible.
● Inverter without line filter:
– Operation permissible on all TN line supplies.
32
Operation on TN line supply systems with grounded line conductor not permissible.
Power Module PM230, IP20 / Push-through technology (PT)
Hardware Installation Manual, 06/2014, A5E34331322B AA