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Variable Frequency Drives SED2 Product Overview

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Variable Frequency Drives SED2 Product Overview Drive and Motor Protection Features Standard I/O SED2 Frame Sizes and Power Range BOP - Basic Operating Panel AOP ... – PowerPoint PPT presentation

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Title: Variable Frequency Drives SED2 Product Overview


1
Variable Frequency Drives SED2 Product Overview
2
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

3
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

4
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

5
Drive and Motor Protection Features
  • Over-voltage
  • Motor overload (I2t)
  • Short circuit
  • Ground fault
  • Drive Over-temperature
  • Motor Over-temperature (Motor PTC required)

6
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

7
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
8
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
9
SED2 Frame Sizes and Power Range
IP20 NEMA Type 1
A-F denotes VFD frame size
10
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)
11
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
12
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.

13
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.

14
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
15
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
16
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)
17
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
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