0 Sed2 Product Overview

Siemens Building Technologies Building Technologies

Variable Frequency Drives SED2 Product Overview


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


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


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-lingual 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


Drive and Motor Protection Features

• Over-voltage

• Motor overload (I2t)

• Short circuit

• Ground fault

• Drive Over-temperature

• Motor Over-temperature (Motor PTC required)


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


Standard I/O

0-10 V2-10 V0-20 mA4-20 mAProgrammable

functions

Form C contactsProgrammable

functions30VDC, 5A240VAC, 2A

2 x analog outputs

2 x digital outputs

RS-485

P1N2USSLonWorks (opt.)Modbus (opt.)

0-10 V2-10 V

0-20 mA4-20 mANi 1000

2 x analog inputs

6 x digital inputs

1 x motor PTC

InsulatedProgrammable

functionsPNP or NPN (sink/source)

SED2


VFD Product Line Configurations

Added kit with Protective cover and Gland Plate

Meets UL Type 1 (NEMA Type 1) enclosure standards

Suitable for direct wall mounting

NEMA 12 (IP54)

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

(IP20)

Protective Cover

Gland Plate for ConduitNEMA 1


SED2 Frame Sizes and Power Range

IP20 & NEMA Type 1

HP .5 .75 1 2 2 3 5 7.5 10 15 20 25 30 40 50 60 75 100 125

208/240V

480V

575V

A

B

C D E F

A-F denotes VFD frame size


• 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

BOP - Basic Operating Panel

Increase or decrease speed

Hand over control to your system (I/O terminals or communication)

Start or stop drive


• 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

AOP - Advanced Operating Panel

Mon ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Tue ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Wed ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Thu ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Fri ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Sat ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3Son ON 1 OFF 1 ON 2 OFF 2 ON 3 OFF 3

7-Day Timer Function


PID Controller Feature

Ni 1000

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.


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.

Speed

Torque


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.

Pres

sure

dem

and

100%

2 31Cascade

P

Contact out 2

Contact out 1


Menu-driven Quick Commissioning

The drive’s 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.

-Set point DC 0...10 V

- Start / stop

- Running / fault

- Fault acknowledge

- w/ P1: More than 95

parameters

BAS3AC “Hard wiring”

Commissioning Time ~ 10 Minutes

P1

or


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)


For more info, see the Features and Benefits menu on this CD

• 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

Siemens SED2 VFD Advantages

Documents

0 Sed2 Product Overview