Motor Module and Braking Module units can be connected to the Basic Line Module via the
DC bus.
Figure 3-2 Basic Line Module with diodes in 12-pulse configuration
3.3.3 Design of the Motor Module
The Motor Module comprises three phases. Each phase consists of 3 PowerCards in
configuration N=1 and five PowerCards in configuration N=2. For each configuration, a
PowerCard is equipped with neutral-point diodes. The other PowerCards are fitted with gate
turn-off power semiconductors (IGBT modules). Each PowerCard comprises a heat sink with
2 neutral-point diodes or 2 IGBT power semiconductors.
The IGBTs can limit and disconnect a short-circuit current. This means that a short-circuit
generally only results in the drive stopping, and damage to the device is avoided.
Figure 3-3 Motor Module
Description
3.3 Design
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017 35
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