Brochure

Key features and benefits
• Modular construction allows maximum
flexibility in configuration
• Quiet motor operation
• Complete inverter and motor protection
• Main power and motor cable connections
are separated for optimum electromag-
netic capability
• Detachable operator panels for flexibility
in installation
• Latest IGBT technology
• Digital microprocessor control
for accuracy
• Flying restart eliminates the need for a
mechanical break
• Slip compensation
• Automatic restart after power failure
or fault to get you back up and
running fast
• Auto-tuning PID controller for fast,
accurate setup
• Programmable acceleration/deceleration,
0 to 650 seconds
• Ramp smoothing
• Fast current limit (FCL) for tip free
operation
• Fast, repeatable digital input response
time
• Fine speed adjustment using two high-
resolution 10-bit analog inputs
The Siemens SED2 VFDs use a unique low
harmonic design that eliminates the need for
DC link chokes and line reactors. In addition,
Siemens Harmonnee® software calculates the
harmonic distortions produced by the drive on
your electrical system and compares them to
IEEE standards to ensure compliance. The result
is reduced expenses and the ability to use a
smaller drive. That adds up to dollars and sense.
Complete offering, backed by Siemens
Siemens offers the most complete line of
Variable Frequency Drives from a single source
–UL/NEMA Type 1, 12, 3R, electronic bypass
and conventional bypass options. In addition,
Siemens delivers a comprehensive line of HVAC
products, including valves and valve actuators,
damper actuators, room and specialized ther-
mostats and sensors, controllers and switches
and relays. All products are backed by Siemens
expert technical support.
The SED2 VFDs power traditional variable
torque fan and pump applications.