Siemens SINAMICS S120 Manual page 40

Line-side power components
2.2 Line filters for Basic Line Modules
NOTICE
Maximum motor cable length
The maximum permissible motor cable length is 100 m when using the line filters. Shielded
motor cable lengths must always be used.
NOTICE
Maintain ventilation clearances
The ventilation clearances of 100 mm above and below the components must be observed.
This prevents thermal overloading of the filter.
NOTICE
Do not interchange the I/Os
The connections must not be interchanged:
• Incoming line cable to LINE/NETZ L1, L2, L3
• Outgoing cable to the reactor to LOAD/LAST L1', L2', L3'
Non-observance may damage the line filter.
High leakage current
The line filters listed conduct a high leakage current via the PE conductor. A permanent PE
connection for the line filter or control cabinet is required due to the high leakage current of
the line filters.
According to EN 61800-5-1, Section 6.3.6.7, the minimum cross-section of the protective
ground conductor must conform to the local safety regulations for protective ground
conductors for equipment with a high leakage current.
Note
High-voltage test
If a high-voltage test is conducted with alternating voltage, the line filter must be
disconnected to obtain an accurate measurement result.
If a high-voltage test is carried out with direct voltage, the connection clip for the interference
suppression capacitor in the Basic Line Module must also be removed, refer to
sectionHotspot-Text (Page 102) "Electrical connection".
NOTICE
Use only approved line filters
Using line filters not approved by SIEMENS for SINAMICS can lead to line-side harmonics
that can interfere with or damage other loads powered from the network.
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DANGER
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Chassis power units