Variable Frequency Drives SED2 Product Overview

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Variable Frequency Drives SED2 Product Overview
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Introducing SED2 - Siemens Easy Drive

• The SED2 family of Variable Speed Drives is
  designed specifically for the HVAC industry
• Provides speed control of fan and pump 3 phase
  motors
• 230V ½ - 60HP
• 480V 1 125HP
• 575V 1 125HP
• 6 frame sizes for every application

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SED2 Features

• Built-in P1 N2 Communications
• Optional LonWorks or Modbus communication
  interface
• Unique low harmonics design limits emitted noise
  that may interfere with other devices
• Built-in custom PID controls system dynamics,
  eliminates the need/cost for separate PID
  controllers
• Pump Controller Staging/Cascading eliminates the
  cost of separate controllers suited for open
  loop, constant pressure, constant flow-type
  systems and applications.
• Multi-Level Program Access Limit, manage, and
  custom configure the specific parameters unique
  to the application.
• Eliminates the need and cost for separate line
  reactors and chokes
• Allows direct sensor input for room temperature
  control

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SED2 Features

• Intuitive, easy-to-use internal programming
  software leads the operator through quick
  start-up and commissioning
• One Common Interface includes a Basic Operator
  Panel to operate, set and monitor all drive
  functions.
• Advanced Operator Panel provides inputting of
  parameters to multiple drives, multi-line/multi-li
  ngual display, scheduling functions, and can
  control up to 31 drives on the same network
• Essential Services Mode/Smoke Purge for critical
  applications where continuous uninterrupted
  service is essential. Drive will run regardless
  of system faults and alarms

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Drive and Motor Protection Features

• Over-voltage
• Motor overload (I2t)
• Short circuit
• Ground fault
• Drive Over-temperature
• Motor Over-temperature (Motor PTC required)

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SED2 Features

• Built-In Hand Auto Selection
• Built into Basic/Advanced Operator Keypad in lieu
  of separate device
• Wide Range of I/O
• Digital Inputs 6
• Analog Inputs 2
• Relay contact Outputs 2
• Analog Outputs 2
• Certifications
• UL
• cUL
• CE

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Standard I/O
0-10 V 2-10 V 0-20 mA 4-20 mA Programmablefuncti
ons
0-10 V 2-10 V 0-20 mA 4-20 mA Ni 1000
SED2
2 x analog outputs
2 x analog inputs
Insulated Programmablefunctions PNP or NPN
(sink/source)
Form C contacts Programmablefunctions 30VDC,
5A 240VAC, 2A
2 x digital outputs
6 x digital inputs
P1 N2 USS LonWorks (opt.) Modbus (opt.)
RS-485
1 x motor PTC
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VFD Product Line Configurations

• SED2 only
• 200-240V 1/2 60HP
• 440-500V 1 125HP
• 500-600V 1 125HP
• For VFD imbedded applications and local bypass
  (control panel shop) assembly

(IP20)
Added kit with Protective cover and Gland
Plate Meets UL Type 1 (NEMA Type 1) enclosure
standards Suitable for direct wall mounting
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SED2 Frame Sizes and Power Range
IP20 NEMA Type 1
A-F denotes VFD frame size
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BOP - Basic Operating Panel

• Commissioning sequence is menu-driven and enables
  the drive to be set up quickly with only 14
  parameters
• Filter function arranges parameters to meet user
  needs
• Hand / Auto function for easy commissioning and
  maintenance
• BOP is standard on all drives

Start or stop drive
Increase or decrease speed
Hand over control to your system (I/O terminals
or communication)
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AOP - Advanced Operating Panel

• Provides multilingual clear text information for
  commissioning and maintenance
• 4 x 30 character backlit display
• Uploads and downloads parameter settings from one
  drive to another
• Stores 10 parameter sets
• 7-day timer function
• Broadcast function allows control of up to 31
  drives via one AOP

7-Day Timer Function
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PID Controller Feature

• Analog or Ni 1000 Sensor Direct Connection
• With direct connection of analog or Ni 1000
  temperature sensor inputs, implementing low-cost
  temperature control loops with one cooling or
  heating sequence is easy.
• The built-in PID controller with anti-windup
  functionality is optimized for HVAC requirements.
  The PID controller has a hibernation mode which
  stops the drive if it runs at a user-defined
  minimum speed for a given time.

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V-Belt Monitoring Feature

• The SED2 ensures reliable V-belt monitoring
  without the expense of an external sensor. Both
  speed and torque are compared to a user-defined
  tolerance band. If the parameters do not match,
  the drive trips in the event of V-belt failure.
• Also, the SED2 is also able to monitor a pulse
  sequence from the sensor detecting rotation on
  the fan shaft.

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Built-in Pump Cascading Feature

• This function allows for the control of up to two
  additional, cascaded pumps. With the two relay
  output contacts, the SED2 performs the cascading
  logic without additional controllers or I/O cards.

Pressure demand
Cascade
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Menu-driven Quick Commissioning

• The drives initial settings consider the hard
  wired or direct (P1) connections commonly used
  with a BAS system. The quick commissioning mode
  using the standard operating panel, provides for
  quick and straightforward drive set up.

Commissioning Time 10 Minutes
BAS
3AC
Hard wiring

• Set point DC 0...10 V- Start / stop- Running /
  fault- Fault acknowledge
• w/ P1 More than 95 parameters

or
P1
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Accessories

• Door mounting kitsuitable for BOP and AOP
• Modbus interface cable
• LonWorks interface module
• Harmonics analysis software
• Commissioning software
• PC interface to SED2

Panel door
AOP or BOP
Cover (IP56 protection)
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Siemens SED2 VFD Advantages

• Low harmonics design
• Small enclosure size
• Many standard features
• Reduces operating cost
• Low power losses/high efficiency
• Minimal effect on customer power
• Wide power range from ½ to 125 HP