Siemens SINAMICS G115D

• Route all power cables (line supply and motor cables) separately from signal and data cables.
The minimum distance should be approximately 25cm.
Exception: hybrid motor cables with integrated shielded temperature sensor and brake
control wires are allowed.
• For the wall-mounted converters, shield the motor cable between converter and motor. We
recommend shielded cables with symmetrical three-phase conductors (L1, L2, and L3) and
an integrated, 3-wire, and symmetrically arranged PE conductor.
Cable shields
• Use shielded cables with 󹪝nely stranded braided shields. Foil shields are not suitable since
they are much less e󹪜ective.
• Connect shields to the grounded housings at both ends with excellent electrical conductivity
and a large contact area.
• Bond the cable shields to the plug connectors of the converter.
• Do not interrupt cable shields by intermediate terminals.
• For power cables as well as signal and data cables, the cable shields should be connected by
means of suitable EMC glands. The cable shields must be connected to the shield bonding
options for cables and the unit housing respectively with excellent electrical conductivity and
a large contact area.
• Use only metallic or metallized connector housings for shielded data cables.
5.1.3 Equipotential bonding
Equipotential bonding within the drive system has to be established by connecting all electrical
and mechanical drive components (transformer, motor and driven machine) to the grounding
system. These connections are established by means of standard heavy-power PE cables, which
do not need to have any special high-frequency properties.
In addition to these connections, the converter (as the source of the high-frequency
interference) and all other components in each drive system (motor and driven machine)
must be interconnected with respect to a high-frequency point of view. For this purpose
cables with good high-frequency properties must be used.
Wiring
5.1EMC installation guidelines
SINAMICS G115D Wall Mounted distributed drive
50 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA