Cable Shielding And Routing - Siemens SINAMICS S120 Manual

Cabinet design and EMC for components, Blocksize format

10.4 Cable shielding and routing

The following general conditions must be observed when used in the first environment:
● The drive system must be installed in compliance with EMC regulations by appropriately
trained professionals.
● The converters must be equipped with a Category C2 line filter.
● The device-specific information and instructions for maintaining harmonic current limits
must be complied with.
10.4 Cable shielding and routing
In particular for meeting the requirements of EMC, certain cables must be routed with
sufficient spacing and certain components must be mounted with a suitable clearance. To
full EMC requirements, the following cables must be used with shields:
● Power supply cables from line filter via line reactor to Power Module
● All motor cables (if necessary, including cables for motor holding brake)
● Cables for "fast inputs" of the Control Unit
● Cables for analog direct voltage/current signals
● Signal cables for encoders
● 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 supply connection point and the line filter, make sure that no
interfering cable is routed in parallel.
The cable shields must be connected as close to the conductor terminal connections as
possible to ensure a low-impedance connection with cabinet ground.
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Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
AC Drive