Parallel Connection Of Basic Line Modules - Siemens SINAMICS S120 Function Manual
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Function modules
7.10 Parallel connection of power units
Configuring a parallel connection
Additional information on configuring parallel power units connections can be found in the
"SINAMICS Low Voltage Configuration Manual
(https://www.automation.siemens.com/mcms/infocenter/dokumentencenter/ld/Documentsu2
0Catalogs/lv-umrichter/sinamics-engineering-manual-lv-en.pdf)".
7.10.1.1
Parallel connection of Basic Line Modules
Features of Basic Line Modules:
● The DC-link voltage is greater than the rms value of the line rated voltage by a factor of
● They are used in cases where regenerative feedback capability is not required.
● If regenerative operating states occur in the drive line-up, Braking Modules that convert
Basic Line Modules in chassis format are available for the following voltages and power
ratings:
Table 7- 7
Line supply voltage
380 to 480 V 3 phase AC
500 to 690 V 3-phase AC
The following rules must be observed when connecting Basic Line Modules in parallel:
● Up to four identical Basic Line Modules can be connected in parallel.
● A common Control Unit must always be used to implement the parallel connection.
● Special Line Connection Modules are available for the parallel connection.
● With multiple infeeds, power must be supplied to the systems from a common infeed
● A current reduction (derating) of 7.5% must be taken into consideration, regardless of the
506
1.35.
the excess energy to heat in braking resistors must be used.
Basic Line Modules
point (i.e. the modules cannot be operated on different line supplies).
number of modules connected in parallel.
Rated power
200 ... 710 kW
250 ... 1100 kW
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
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