Tn Line System - Siemens SINAMICS G120 Operating Instructions Manual

Low voltage inverters built-in units with cu250s-2 control units and encoder evaluation

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Table of Contents

Screw for functional grounding on the converter, frame size FSG

If you wish to use the inverters with integrated C3 line filter, please note the information in the

sections "TN line system", "TT line system" and "IT system" below.

TN line system

A TN line system transfers the PE protective

conductor to the installed plant or system us‐

ing 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.

A TN line system can transfer the neutral con‐

ductor N and the PE protective conductor ei‐

ther separately or combined.

Converter with the CU250S-2 Control Units

Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG

Remove screw for functional grounding

4.4 Connecting the line supply and motor