SED2 variable speed drives – with lots
of functionality
Minimum operating costs and
maximum energy savings, lowered maintenance
effort and short amortization are factors
that distinguish intelligent building and
energy management. Our variable speed drives
support these requirements in every way. For
example, the fan and pump loads are
automatically reduced when little or no
demand exists. The SED2 variable speed
drives have lots of functionality that can
be optimized for HVAC requirements.
Performance properties:
Low-noise EMC design: Suitable for all types
of buildings
Reduction of harmonic currents on AC lines
through Low Harmonics Technology (LHT)
Manual/Auto button
Space-saving design
Menu-guided quick commissioning
IP54 / IP20 housing
PID controller for fast and precise pressure
control on pumps or fans
The hibernation mode starts and stops the
variable speed drive on demand
Direct connection of the Ni1000 temperature
sensors for simple ventilation plants
Pump cascading for up to two additional
cascading pumps
Fan-belt monitoring for fans and pumps in
two variants
Control of an external bypass
Flying restart
Automatic restart following a power failure
or fault