Line Modules; General Information; Basic Line Modules - Siemens SINAMICS S120 Device Manual

System overview

2.4 Line Modules

● Cost minimization during operation, maintenance, and service:
– Simple commissioning thanks to the menu-driven "STARTER" commissioning tool.
– Optional, menu-guided AOP30 advanced operator panel with plain text display and
– All device modules are easily accessible, which makes them extremely service
● Space-saving design
● Environmentally-friendly operation:
– The converters are exceptionally quiet and compact thanks to state-of-the-art IGBT
2.4 Line Modules
2.4.1

General information

Power is fed to the drive line-up via Line Modules, which generate a DC voltage from the line
voltage and, therefore, supply energy to the motor modules connected to the DC link. They
are suitable for connection to systems grounded at the star point (TN, TT) and non-grounded
(IT) systems.
The Line Modules are connected to the incoming supply via Line Connection Modules and
are implemented in accordance with IEC 61800-3 category C3.
2.4.2

Basic Line Modules

Basic Line Modules are designed only for infeed operation, i.e., they are not capable of
feeding regenerative energy back into the supply system.
If regenerative energy is produced, e.g., when braking drives, it must be converted to heat by
means of a supplementary braking module and a braking resistor.
When a Basic Line Module is used as the infeed, a line reactor appropriate to the supply
conditions must be installed. If the infeed is realized via a transformer with an appropriate
rating in 6-pulse operation with a Basic Line Module or in 12-pulse operation with two Basic
Line Modules, the line reactor is optional and can be omitted.
If two or more Basic Line Modules are operated in parallel on a common supply system in
order to increase power, line reactors are also included in the associated Line Connection
Module.
For a compact configuration, Line Connection Modules with input currents of up to 3000 A
are available. Two Basic Line Modules can be operated in parallel on these Line Connection
Modules. Line-side fuses are installed for selective protection of the individual devices of
Basic Line Modules.
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bar graphs of process variables.
friendly.
power semiconductors and an innovative cooling concept.
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A