5.1.6 Cable Installation
Description
The following applies when routing cables inside the control cabinet:
• All cables must be routed as closely as possible to parts connected with the control cabinet
ground, such as mounting plates or cabinet side panels. Ducts made of sheet steel or cables
routed between steel sheets (e.g. between the mounting plate and rear panel) should
provide adequate shielding.
• The cables are routed to the components in such a way that they do not cover the ventilation
slots.
5.1.7 Shield support
Description
For the shield support, Line Modules and Motor Modules have shield connection plates. The
shield support for these components is described in the corresponding chapters.
For components that do not have any special shield connection or where the shield
connection is not adequate, e.g. line reactors and line lters, the shield support is connected
to the metal mounting plate (power cables are fastened using pipe clamps and toothed rails).
5.2 Layout of the components
5.2.1 Combination of components
Description
The modular concept of SINAMICS chassis units allows a wide range of device combinations. It
is not possible to describe each individual combination. This documentation provides
fundamentals and generally valid rules and regulations.
5.2.2 Selecting the Line Module to the Motor Module
Description
The DC link input current of the Motor Module has been calculated for a synchronous motor with
cos φ = 1. The real current can be approximately calculated based on the current and the cos φ
of the motor using the following formula:
Mounting
5.2Layout of the components
Booksize power units
78 Equipment Manual, 09/2023, A5E53307519B AA
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