SINAMICS G120
Standard inverters 0.37 kW to 250 kW (0.5 hp to 400 hp)
SINAMICS G120 standard inverters
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Siemens D 11.1 · 2009
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Technical specifications
Compliance with standards
CE mark
The SINAMICS G120 inverters meet the requirements of the
Low-Voltage Directive 73/23/EEC.
Low-Voltage Directive
The inverters comply with the following standards listed in the
official journal of the EU:
• EN 60204
Safety of Machinery, electrical equipment of machines
• EN 61800-5-1
Electrical power drive systems with variable speed – Part 5-1:
Requirements regarding safety – electrical, thermal, and en-
ergy requirements
UL listing
Inverter devices in UL category NMMS certified to UL and cUL,
in compliance with UL508C. UL list numbers E121068 and
E192450.
For use in environments with pollution degree 2.
Also see the Internet under http://www.ul.com
Machinery Directive
The inverters are suitable for installation in machines. Compli-
ance with the Machinery Directive 98/37/EC requires a separate
certificate of conformity. This must be provided by the plant con-
struction company or the organization marketing the machine.
EMC Directive
• EN 61800-3
Variable-speed electric drives
Part 3: EMC product standard including specific test methods
The EMC product standard EN 61800-3 has been valid for elec-
tric drive systems since 07/01/2005. The transition period for the
predecessor standard EN 61800-3/A11 from February 2001
ended on October 1, 2007. The following information applies to
SINAMICS G120 frequency inverters from Siemens:
• The EMC product standard EN 61800-3 does not apply
directly to a frequency inverter but to a PDS (Power Drive
System), which comprises the complete circuitry, motor and
cables in addition to the inverter.
• Frequency inverters are normally only supplied to experts for
installation in machines or systems. A frequency inverter must,
therefore, only be considered as a component which, on its
own, is not subject to the EMC product standard EN 61800-3.
The inverter's operating manual, however, specifies the condi-
tions regarding compliance with the product standard if the
frequency inverter is expanded to become a PDS. For a PDS,
the EMC Directive in the EU is complied with by observing the
product standard EN 61800-3 for variable-speed electric
drive systems. The frequency inverters on their own do not
generally require identification according to the EMC Direc-
tive.
• In the Standard EN 61800-3 from July 2005, a distinction is no
longer made between “general availability” and “restricted
availability”. Instead, different categories C1 to C4 have been
defined in accordance with the environment of the PDS at the
operating location:
- Category C1: Drive systems for rated voltages < 1000 V for
use in the first environment
- Category C2: Stationary drive systems not connected by
means of a plug connector for rated voltages < 1000 V.
When used in the first environment, the system must be in-
stalled and commissioned by personnel familiar with EMC
requirements. A warning note is required.
- Category C3: Drive systems for rated voltages < 1000 V for
exclusive use in the second environment. A warning note is
required.
- Category C4: Drive systems for rated voltages ≥ 1000 V or
for rated currents ≥ 400 A or for use in complex systems in
the second environment. An EMC plan must be generated.
• The EMC product standard EN 61800-3 also defines limit val-
ues for conducted interference and radiated interference for
the so-called “second environment” (= industrial power sup-
ply systems that do not supply households). These limit values
are below the limit values of filter class A to EN 55011. Unfil-
tered inverters can be used in industrial environments as long
as they are part of a system that contains line filters on the
higher-level infeed side.
• With SINAMICS G120, Power Drive Systems (PDS) that fulfill
the EMC product standard EN 61800-3 can be configured
when observing the installation instructions in the product
documentation.
• A differentiation must be made between the product stan-
dards for electrical drive systems (PDS) of the range of stan-
dards EN 61800 (of which Part 3 covers EMC topics) and the
product standards for the devices/systems/machines, etc.
This will probably not result in any changes in the practical use
of frequency inverters. Since frequency inverters are always
part of a PDS and these are part of a machine, the machine
manufacturer must observe various standards depending on
their type and environment (e.g. EN 61000-3-2 for line har-
monics and EN 55011 for radio interference). The product
standard for PDS on its own is, therefore, either insufficient or
irrelevant.
• With respect to the compliance with limits for line supply har-
monics, the EMC product standard EN 61800-3 for PDS refers
to compliance with the EN 61000-3-2 and EN 61000-3-12
standards.
• Regardless of the configuration with SINAMICS G120 and its
components, the machine construction company (OEM) can
also apply other measures to ensure that the machine com-
plies with the EU EMC Directive. The EU EMC Directive is gen-
erally fulfilled when the relevant EMC product standards are
observed. If they are not available, the generic standards (e.g.
DIN EN 61000-x-x) can be used instead. It is important that
the conducted and emitted interference at the line connection
point and outside the machine remain below the relevant limit
values. Any suitable technical measures can be applied to en-
sure this.
SEMI F47
SEMI F47 is an industry standard relating to the immunity to volt-
age dips. This includes the requirement that industrial equip-
ment must be able to tolerate defined dips or drops of the line
supply voltage. As a result, industrial equipment that fulfills this
standard is more reliable and productive. In the SINAMICS G120
product family, the PM240 and PM250 Power Modules fulfill the
latest SEMI F47-0706 standard. In the case of a voltage dip, de-
fined in accordance with SEMI F47-0706, these drives either
continue to supply a defined output current, or using an auto-
matic restart function, continue to operate as expected.
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