Siemens SINAMICS S120 Equipment Manual page 139

The components of the drive line-up should preferably be installed on a conductive mounting
surface to ensure low impedance between the component and the mounting surface.
Mounting plates with a galvanized surface are suitable.
The components can be arranged in one or more tiers. In a multiple-tier arrangement,
vertical installation or, in a cabinet row, side-by-side installation in different cabinet sections
is possible.
To determine the cross-section, use the DC link busbar current capacity given in the relevant
technical specifications.
Figure 6-3
The DC link bridges must be removed by unscrewing the M4 screws.
Caution
When the power supply input is on the right-hand side of the drive line-up and the last motor
module is 50mm wide, the DC link bridges must be removed.
Continuation of the DC link with the DC link adapter (installation above) external to the
components is achieved using single-core, finely-stranded and shielded cables that are laid
so as to ensure they are short-circuit and ground-fault proof.
Booksize Power Sections
Equipment Manual, (GH2), 04.2004 Edition, 6SL3097-2AC00-0BP0
When supplied
Removing the DC link bridges (two-tier arrangement)
Cabinet Configuration and EMC Booksize
6.4 Arrangement of components and devices
This screw must
be replaced with
an M4/16 mm
screw.
6-15