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Control cabinet design and EMC booksize
8.3 Electromagnetic compatibility
Note
Operation on line supplies that are not grounded at the neutral point
For operation on line supplies that are not grounded at the neutral point (e.g. IT line systems or
line supplies with grounded line conductor), it cannot be guaranteed that the requirements of
the EMC categories are complied with. The following conditions apply:
• Basic Line Filters must not be used.
• In conjunction with Smart Line Modules, special external filters can be used (without
capacitors to ground) to reduce symmetrical interference.
8.3.5
Combination options of Line Modules with line reactors and line filters
Table 8-3
Combination options of Smart Line Modules with line filters and line reactors
SLM rated
Combined with:
power
filter / reactor
16 kW 24 kW
Basic
Line
Filter
●
●
-
●
●
x
Maximum total cable length = Σ motor cables, line supply cable from the line filter to the Line Module.
1)
8.3.6
Interference/immunity
Limiting interference
Radio interference suppression filters are required in order to limit interference. These filters can
either be integrated in the device or externally mounted.
Additional information on limiting the interference for the drive system is provided in Chapter
"Electromagnetic compatibility" of the SINAMICS S120 Equipment Manual Booksize Power Units
(https://support.industry.siemens.com/cs/ww/en/view/109781351).
114
Max. permissible total cable
length
to maintain limit values
1)
according to IEC 61800-3
Line re‐
Category C2
actor
shielded
in m
x
-
x
750
Limit values not complied with
Shielded
Category C3
in m
shielded
in m
-
1000
1000
-
Equipment Manual, 01/2022, 6SL3097-6AC30-0BP0
Can be oper‐
ated on IT
line systems
Unshielded
in m
1200
Yes
-
No
Booksize power units
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