User Manual

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SED2 – simply control speed
and save energy actively
SED2 variable speed drives control the energy demand of equipment
with high power consumption in a highly efficient way. Fans and
pumps use up to 50% less energy thanks to SED2: especially thanks
to the precise, on-demand control of the motor speed. In addition,
the Low Harmonic Technology of the SED2 devices reduces mains
harmonics to a minimum.
Based on Siemens’ decades of experience, SED2 enable simple, cost-
efficient commissioning and maintenance. Thanks to the comfortable
commissioning assistant and the library with easy adaptable applica-
tions, the devices are ready for use quickly and error-free. During main-
tenance, the modular design and free accessibility make the exchange
of single components easy.
■ Secure investment thanks
to convincing performance
SED2 variable speed drives offer high-
est investment protection, thanks to
their high reliability, long life cycle, and
exceptional simplicity. For example, the
bypass function assures operation of
fans or pumps even in case of a failure.
Minimized mains harmonics prolong
the life cycle. Free accessibility and easy
exchange of components enable quick,
cost-efficient maintenance. Standardized
modules for all SED2 reduce costs for
logistics and storing. And thanks to their
high energy efficiency, SED2 amortize
within a short period of time.
■ A strong portfolio especially
for HVAC applications
The broad SED2 portfolio is based on the
latest variable speed drives technology
especially for HVAC applications and is
suited for the constant speed control
of pumps and fans powered with stan-
dard asynchronous 3-phase motors. Via
interfaces, SED2 can be easily integrated
into building automation systems such
as DESIGO™ from Siemens. The most im-
portant applications for fans and pumps
are included in the respective system
libraries. Thus, variable speed drives in
combination with systems from Siemens
enable tested and proven applications.
■ Reliable control in the event of fire
In addition to the HVAC functions, the
SED2 variable speed drives provide a
special control option in the event of fire.
This feature reliably ensures that escape
routes are kept free of smoke by means
of overpressure.
■ Everything to support you –
from software to service
With the SED2 variable speed drives, you
receive comprehensive support from
Siemens: practice-oriented trainings,
comfortable software, for example for
quick and guided commissioning, as
well as comprehensive documentations.
Highlights
■ Energy savings of up to 50% when
operating fans and pumps
■ Cost savings thanks to quick,
straightforward commissioning
and maintenance
■ Long-term investment protection
thanks to high reliability, long life
cycle as well as easy maintenance
and logistics
■ Broad portfolio with latest variable
speed drives technology
■ Reliable control even in case of re
■ Comprehensive support from
Siemens