Siemens SINAMICS S120 Manual page 132

Cabinet Modules
6.1 Basic Line Connection Modules
Basic Line Connection Modules are compact line infeeds for two-quadrant operation, i.e. no
regenerative feedback. They are used in applications where energy does not have to be fed
back into the line.
Basic Line Connection Modules comprise a Line Connection Module and a liquid-cooled
Basic 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 Basic Line Modules. It is equipped as standard with a radio interference suppression
filter according to EN 61800-3 Category C3.
As standard, the Basic Line Connection Module is positioned in the drive lineup so that the
Motor Modules are arranged to the right.
If Motor Modules are to be arranged to the left of the Basic Line Connection Module then
option M88 (DC bus system for line-side Cabinet Modules) must be used.
Under full load, the DC-link voltage is higher than the rms value of the rated line voltage by a
factor of 1.32, and under partial load by a factor of 1.35.
If regenerative conditions occur in the drive line-up, a Motor Module can be used as braking
chopper, which then converts excess energy to heat in a braking resistor.
Basic 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- 1
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 Basic Line Connection Modules in parallel.
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Rated power
360 ... 830kW
355 ... 1370kW
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 liquid cooled
Manual, 10/2015, A5E37067587A