Emc-Compliant Design; Connecting Shielded Three-Phase Cables - Siemens SINAMICS S120 Manual

Electrical installation

4.4 EMC-compliant design

Components and devices that have been voltage tested according to their product standard
may be disconnected during testing.
The SINAMICS cabinet units are voltage tested in accordance with EN 61800-5-1 and must
be disconnected during this test.
If they cannot be disconnected, input and output terminals must be short-circuited and a
bypass installed. In this case, a DC voltage that is 1.5 times the AC test voltage should be
used for testing.
1) Main circuits are circuits that are electrically connected to the line voltage.
4.4 EMC-compliant design
For detailed configuration instructions regarding the EMC-compliant design of drives and
control cabinet configuration, refer to the "SINAMICS Low Voltage Configuration Manual"
provided on the customer DVD supplied with the unit.
4.5

Connecting shielded three-phase cables

A good shield connection is achieved by connecting the shields in the converter cabinet
through a large surface area to the EMC shield rail using EMC shield clamps (PUK shield
clamps). EMC shield clamps (PUK shield clamps) are provided in the accessories pack to
connect to the shield rail.
Figure 4-1
Note
References
Detailed engineering information for connected shielded three-phase cables with
concentrically arranged shields is provided in the "SINAMICS Low Voltage Configuration
Manual" on the customer DVD supplied with the equipment.
72
Connecting shields in the converter at the EMC shield rail using EMC shield clamps
(PUK shield clamps)
Cabinet Modules
Manual, 03/2013, A5E03263538A