Siemens SINAMICS S120 Combi - Notes on Electromagnetic Compatibility (EMC); Cable Shielding and Routing

Cabinet design and EMC
13.4 Notes on electromagnetic compatibility (EMC)
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
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13.4 Notes on electromagnetic compatibility (EMC)
Requirements to implement the EMC are listed in EN 61000-6-2, EN 61000-6-4, EN 61800-
3, EN 60204-1 and in the Configuration Manual EMC Installation Guideline (order number
6FC5297-0AD30-0P). Conformance with the EMC Directive of the EC can be ensured by
following the measures described in the Configuration Manual, EMC installation guideline.
When mounting components in cabinets, in order to fulfill the EMC Directive, the following
conditions must be additionally observed:
● Connected to TN and TT line supplies with grounded neutral point and grounded phase
conductor as well as to IT line supplies.
● Observance of information about cable shielding and equipotential bonding.
● Use of the recommended power and signal cables from Siemens.
● Only cables from Siemens may be used for DRIVE-CLiQ connections.
CAUTION
If couplings or cabinet glands are needed for the DRIVE-CLiQ connections, only the
DRIVE-CLiQ coupling and DRIVE-CLiQ cabinet gland, described in the Chapter
Accessories, may be used.
DANGER
If the shielding procedures described and the specified cable lengths are not observed, the
machine may not operate properly.
13.5 Cable shielding and routing
In order to comply with the EMC requirements, certain cables must be routed apart from
other cables and from certain components. To full EMC requirements, the following cables
must be used with shields:
● Line supply cables from the line filter via the line reactor to the S120 Combi Power
Module
● All motor cables (if necessary, including cables for motor holding brake)
● Cables for analog direct voltage/current signals
● Signal cables for sensors
● Cables for temperature sensors
Alternative measures (e.g. routing behind mounting plates, suitable clearances) can also be
used provided they have similar results. This excludes measures that relate to the design,
installation, and routing of motor power cables and signal cables.
If unshielded cables are used between the line connection point and line filter, make sure
that no interfering cables are routed in parallel.