Design Of The Motor Module; Figure 3-2 Basic Line Module With Diodes In 12-Pulse Configuration; Figure 3-3 Motor Module - Siemens SINAMICS GM150 Operating Instructions & Installation Instructions

Motor Module and Braking Module units can be connected to the Basic Line Module via the DC
bus.
Figure 3-2
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
SINAMICS GM150 6SL3810-2LN31-8AA2
Operating Instructions Rev.201910281332 EXAMPLE
Basic Line Module with diodes in 12-pulse configuration
Motor Module
Description
3.3 Design
33