Line Filters; Description; Safety Information - Siemens SINAMICS S120 Combi Equipment Manual

2.6

Line filters

2.6.1

Description

Line filters have the task to attenuate conducted interference emission in the frequency
range according to the specifications of EMC legislation. They are mainly effective in the
frequency range from 150 kHz to 30 MHz; this is the range relevant to ensure compliance
with the appropriate standard.
In conjunction with a line filter and the associated line reactor, drive line-ups with S120
Combi Power Modules fulfill Category C2 according to EN 61800-3. An EMC compliant
design is always assumed.
Line filters for 16 kW and 20 kW are designed for use with systems and equipment with a
maximum total cable length of 175 m of category C2 to EN 61800-3.
Note
The line filter is only suitable for direct connection to TN line supplies. When connected to
other line supplies, an isolation transformer is required.
2.6.2

Safety information

The drive components generate high leakage currents in the protective conductor. The
components must only be operated in control cabinets or in closed electrical operating
areas and must be connected with the protective conductor. To protect against electric
shock, the protective conductor connection at the control cabinet or machine must be
implemented in accordance with one of the following measures:
• stationary connection and protective conductor connection by means of ≥ 10 mm
• stationary connection and installation of a second protective conductor with the same
• stationary connection and automatic shutdown of the line supply if the protective
• Connection with a plug connector for industrial applications in accordance with
Risk of electric shock
A hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
SINAMICS S120 Combi
Manual, Edition 05.2010, 6SL3097-4AV00-0BP0
DANGER
≥ 16 mm Al
2
cross-section as the first protective conductor
conductor is interrupted
EN 60309 and a minimum protective conductor cross-section of ≥ 2.5 mm
a multi-core supply cable with appropriate strain relief
DANGER
Line-side power components
2.6 Line filters
Cu or
2
Cu as part of
2
35