Permissible Line Supplies And Connection Options - Siemens SINAMICS S210 Operating Instructions Manual

3.2

Permissible line supplies and connection options

The converter is designed for the following line supplies according to IEC 60364-1 (2005).
● TN system
● TT system
● IT system
Converter with 1 AC line connection on an IT line system
You must remove the grounding screw when operating the converter on an IT line system. As
a consequence, you remove the grounding of the integrated EMC filter.
Converters with 3 AC line connection
You must observe the following when operating converters with a 3 AC line connection:
● TN and TT line systems with grounded neutral point:
The converter can be directly connected.
● IT line systems as well as TN and TT line systems that are not grounded at the neutral point
(for example, with grounded line conductor):
The converter must be connected up via an isolating transformer. The neutral point on the
secondary side of the isolating transformer must be grounded.
NOTICE
Destruction of the converter when operated without grounding screw
The converter will be destroyed in operation if the grounding screw is removed for converters
with 3 AC line connection.
● Do not remove the grounding screw.
SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC
3.2 Permissible line supplies and connection options
Configuring
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