Motor Modules; Design; Dc Link Fuses - Siemens SINAMICS G130 Engineering Manual

SINAMICS S120 Cabinet Modules
Engineering Information

7.2.8 Motor Modules

7.2.8.1

Design

The full range of S120 Motor Modules in Chassis format is available for the SINAMICS S120 Cabinet Modules.
Options and design concepts specially tailored to multi-motor drives make these Cabinet Modules suitable for a very
broad range of applications.
Air-cooled Motor Modules in frame sizes FX, GX, HX, JX
Apart from the variations in power units, the frame sizes differ only little from each other. A wide range of EMC
measures designed to achieve high immunity to interference and low interference emissions has been implemented
in the Motor Modules, for example, cable routing in compliance with EMC requirements, optimum shield bonding
facilities and metal screens. Special systems for cooling-air guidance ensure compact dimensions as well as
optimum cooling of the power units. The differences in design between the various frame sizes means that the
measures referred to above have been implemented in different ways.
Frame sizes FX and GX additionally provide special terminals for connection of motor cables. On frame sizes HX and
JX these connections are made directly on the power unit of the mounted Chassis.
7.2.8.2

DC link fuses

DC link fuses are integrated in the power unit of each Motor Module. When the coupling to the DC busbar is made by
using the DC interface (option L37), the fuses are integrated in the DC interface.
SINAMICS Engineering Manual – November 2015
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