The inverter unit has three phases. Each phase comprises two so-called M2C branches. The
six branches of the M2C inverter each consist of identical double submodules connected in
series. The phase of the voltage-source DC link drive is realized employing M2C technology
using submodules connected in series for two branches.
① Branch (identical double submodules connected in series)
② Double submodule
③ Bypass switch (optional)
④ Actual value sensing
⑤ Branch reactor
Image 3-1 Block diagram: Motor Module employing M2C technology
Note
Details on the design can be found in the layout diagram.
Description
3.2 Motor Module employing M2C technology
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 29
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