Smart Line Modules - Siemens SINAMICS S120 Equipment Manual

Line Connection Module
Figure 2-4
2.4.2

Smart Line Modules

Smart Line Modules can supply energy to the DC link and return regenerative energy to the
supply system. A Braking Module and braking resistor are required only if the drives need to
be decelerated in a controlled manner after a power failure (i.e. when energy cannot be
recovered to the supply). When a Smart Line Module is used as the infeed, the
corresponding line reactor is a standard requirement.
For a compact configuration, Line Connection Modules up to input currents of 3,200 A are
available. Two Smart Line Modules can be operated in parallel on these Line Connection
Modules.
Line Connection Module
disconnector
Figure 2-5
Figure 2-6
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
Basic Line
Circuit breaker
Line Connection Module with Basic Line Modules connected in parallel
Switch Main Line
contactor reactor
with fuses
Line Connection Module with Smart Line Module ≤ 800 A
Line Connection Module
Circuit breaker
Line Connection Module with Smart Line Module > 800 A
Module
=
Motor
Module
M
3
Smart Line
Module
=
Motor
Module
M
3
Line Smart Line
reactor Module
=
M
3
Motor
Module
System overview
2.4 Line Modules
25