Siemens SINAMICS S120 Manual page 149

Active Line Connection Modules can inject energy into the DC voltage link and feed
regenerative energy into the line supply.
Active Line Connection Modules comprise a Line Connection Module, a liquid-cooled Active
Interface Module and a liquid-cooled Active Line Module installed in a cabinet system.
Line Connection Modules contain the line-side infeed via main breaker with fuse switch
disconnector or circuit breaker and establish the connection between the plant power system
and the Active Line Modules. It is equipped as standard with a radio interference
suppression filter according to EN 61800-3 Category C3.
As standard, the Active Line Connection Module is positioned in the drive line-up so that the
Motor Modules can be arranged to the right.
If Motor Modules are to be arranged to the left of the Active Line Connection Module then
option M88 (DC bus system for line-side Cabinet Modules) must be used.
Active Line Connection Modules generate a controlled DC voltage that is kept consistent
regardless of fluctuations in the line voltage (the line voltage must lie within the permissible
tolerances).
In the factory setting, the DC voltage is controlled to 1.5 times the rms value of the rated line
voltage.
Active Line Connection Modules draw a virtually sinusoidal current from the supply system
and cause virtually no line harmonics.
Active Line Connection Modules are suitable for connection to supply systems grounded at
the neutral point (TN, TT) and non-grounded (IT) supply systems. The following voltages and
power ratings are available:
Line voltage
3 AC 380 ... 480 V
3 AC 500 ... 690 V
Table 6- 11
Terminals
U1/L1, V1/L2, W1/L3
3-ph. AC power input
Depending on the input current, the following designs are used:
● ≤ 800 A: Main breaker with fuse switch disconnector
● > 800 A: Circuit breaker, type 3WL, with option L25 as withdrawable circuit breaker
The power rating can be increased by connecting Active Line Connection Modules in
parallel.
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
Rated power
630 ... 900 kW
1100 ... 1700 kW
X1 terminals for the line supply
Technical data
Voltage:
380 –10 % to 480 V +10 % 3 ph. AC (-15 % < 1 min)
500 –10 % to 690 +10 % V 3 ph. AC (-15 % < 1 min)
Frequency:
47 to 63 Hz
Cabinet Modules
6.2 Active Line Connection Modules
149