S-Flex
Enclosed Drive
The best drive for commercial
pump and fan applications.
Make the most of your energy
SM
For more than 100 years the Square D™ brand
has been known for the most reliable electrical
products. Our industry-leading electrical expertise
and commitment to quality, fuels our passion for
years
drives. The S-Flex
input from HVAC consultants and contractors,
was developed specifically for commercial pump
and fan applications, providing the most effective
solution with the quickest payback.
™
enclosed drive, designed with
Save Time Think GreenSave SpaceSave Money
2
Save time
Save space
Because specifying drives can be time
consuming, the S-Flex drive includes the most
common requirements in HVAC specifications
for pump and fan applications, such as:
• Simple start-up including preprogrammed
parameters for pump and fan applications
• Windows-based PCSoft software that
allows you to:
> Adjust parameters
> Store and transfer drive configuration files
> Monitor drive performance, including
historical data
> Configure, adjust and control remotely
> Store drive configuration programs
• Quick installation with EZ-M mounting
• Easy wiring conduit knock-outs on
the enclosure
• Dedicated wiring terminal block
• Stock availability so that the S-Flex drive
is ready when you are
Save money
Offering unmatched value in installed cost and
functionality, the S-Flex drive allows building
owners, consulting engineers and contractors
to focus on the essentials of demanding
commercial building applications.
More than dollars and cents, you’ll save with:
• Industry-leading reduced harmonic
technology – eliminating the need for line
reactors and DC chokes
• Energy savings – designed with energy
economizing motor algorithms that maximize
energy savings by reducing electricity usage
• Internal PID regulator – allowing flow rates
to be adjusted for actual needs without
additional hardware
• Reduced equipment maintenance cost
and downtime
• 24/7 live technical support
The most slender design in the Flex drive family,
the S-Flex enclosed drive offers a compact
product with just the right features for most
HVAC applications. When space is a concern,
we’ve got you covered with:
• Slender design for minimal wall space
• Minimal space requirements between drives
for side-by-side wall mounting
• Retrofitting of HVAC systems in existing
mechanical rooms
Think green
The S-Flex enclosed drive assists with
Leadership in Energy and Environmental Design
™
(LEED
occupant comfort and health, decrease vacancy
rates, increase building valuation, and improve
the bottom line by reducing operating costs.
A building that runs smoothly ensures
comfortable tenants and comfortable tenants
mean less vacancy.
Going green with the S-Flex drive offers:
• Building owners the ability to take advantage of
• More marketable buildings to tenants seeking
• Retrofitting to existing systems
• The most efficient method of partial
) certification. Green buildings enhance
state and local government energy incentives
energy efficient/sustainable facilities
load control
3
Industry-leading reduced
harmonic technology (RHT)
Horsepower range:
• 1–40 hp at 208 Vac and 230 Vac
• 1–100 hp at 460 Vac
The S-Flex drive revolutionizes harmonic mitigation with its innovative
reduced harmonic technology. Significant harmonic reduction is achieved
within the diode capacitor and power conversion section of the variable
frequency drive, eliminating the need for a line reactor or bus reactor,
which results in:
• Higher equipment efficiency
• Reduced equipment cost
• Fewer points of electrical failure
• Smaller enclosure size
• Lighter weight
Harmonics can be present in voltage, current or both. Any power source
that converts AC to DC can generate harmonics. Typical sources include:
• Office equipment
• Computers
• Medical equipment
• Microprocessors
• Uninterruptible power supplies
• Fluorescent lamp ballasts
Harmonic currents do not add additional power to the electrical system,
but additional current flows through electrical wires. Effects may include:
• Overheating of electrical distribution system wiring
• Shortened transformer life
• Decreased power factor
• Disturbance of power measuring systems
Built-in EZ-M mounting feature for
quick and easy parallel alignment
and mounting
S-Flex drive uses an Altivar™ 212
drive power converter with
reduced harmonic technology
and IGBT inverter with pulse width
modulated output
Optional LCD text keypad
Built-in Modbus™, BaCnet, Metasys
N2, Apogee P1 communication
capability and options for
LonWorks
Programming and diagnostics
in plain English with PCSoft
Superscript
™
software
Adjustable frequency controller
(AFC) – off – bypass selector switch
Optional drive input disconnect
switch provides an input line
power disconnect switch between
the main power disconnect and
the power converter
Optional line contactor provides
an electrically interlocked line
contactor between the main
power disconnect and the
power converter
4
Power-on mode red LED indicator
Bypass mode green LED indicator
Terminal block for customer’s
control connections terminal block
Full voltage bypass contactors
100 kAIC UL 508C rating and full
voltage bypass
Square D circuit breaker
for disconnect and over
current protection
Hinged door with latches for quick
and easy interior access
Conduit knockouts on bottom
of enclosure for quick and
easy wiring
5
Selection guide
The enclosed drive catalog number, located on the nameplate on the inside of the door, is coded to describe the configuration
and options. Use the following table to translate the catalog number into a description of the enclosed drive.
460 V
Catalog Number A in. mm in. mm in. mm lbs kgs
SFD212CG4Y 1 2.1 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212DG4Y 2 3.4 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212EG4Y 3 4.8 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212FG4Y 5 7.6 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212GG4Y 7.5 11 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212HG4Y 10 14 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212JG4Y 15 21 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212KG4Y 20 27 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212LG4Y 25 34 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212MG4Y 30 40 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212NG4Y 40 52 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212PG4Y 50 65 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212QG4Y 60 77 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212RG4Y 75 96 64.900 1648.5 15.243 387.2 11.915 302.7 206 93.440
SFD212SG4Y 100 124 64.900 1648.5 15.243 387.2 11.915 302.7 206 93.440
230 V
Catalog Number A in. mm in. mm in. mm lbs kgs
SFD212CG3Y 1 4.2 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212DG3Y 2 6.8 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212EG3Y 3 9.6 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212FG3Y 5 15.2 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212GG3Y 7.5 22 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212HG3Y 10 28 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212JG3Y 15 42 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212KG3Y 20 54 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212LG3Y 25 68 45.142 1146.6 12.215 310.3 8.727 221.6 111 50.349
SFD212MG3Y 30 80 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212NG3Y 40 104 64.900 1648.5 15.243 387.2 11.915 302.7 206 93.440
208 V
Catalog Number A in. mm in. mm in. mm lbs kgs
SFD212CG2Y 1 4.6 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212DG2Y 2 7.5 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212EG2Y 3 10.6 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212FG2Y 5 16.7 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD21GG2Y 7.5 24.2 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212HG2Y 10 30.8 40.375 1025.5 8.714 221.3 7.895 200.5 52 23.587
SFD212JG2Y 15 46.2 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212KG2Y 20 59.2 45.142 1146.6 12.215 310.3 8.725 221.6 111 50.349
SFD212LG2Y 25 74.8 45.142 1146.6 12.215 310.3 8.727 221.6 111 50.349
SFD212MG2Y 30 88 62.006 1575.0 12.532 318.3 10.916 277.3 140 63.503
SFD212NG2Y 40 114 64.900 1648.5 15.243 387.5 11.915 302.7 206 93.440
HP
HP
HP
Full
Load
Full
Load
Full
Load
Height Width Depth Weight Options
Height Width Depth Weight Options
Height Width Depth Weight Options
A06 = BACnet
B06 = LonWorks
C06 = Metasys N2
D06 = Apogee P1
N06 = Modbus Monitoring
W = Without Bypass
Y = Full Voltage Bypass
A07 = Drive Input
Disconnect Switch
B07 = Line Contactor
D07 = LCD Text Keypad
A06 = BACnet
B06 = LonWorks
C06 = Metasys N2
D06 = Apogee P1
N06 = Modbus Monitoring
W = Without Bypass
Y = Full Voltage Bypass
A07 = Drive Input
Disconnect Switch
B07 = Line Contactor
D07 = LCD Text Keypad
A06 = BACnet
B06 = LonWorks
C06 = Metasys N2
D06 = Apogee P1
N06 = Modbus Monitoring
W = Without Bypass
Y = Full Voltage Bypass
A0 = Drive Input
Disconnect Switch
B07
= Line Contactor
LCD = Text Keypad
D07 = LCD Text Keypad
6
Specifications
Electrical Specifications
Input voltage 208 Vac ±10%, 230 Vac ±10%, 460 Vac ±10%
Displacement power factor Approximately 0.96
Input frequency 60 Hz ±5%
Output voltage Three-phase output, maximum voltage equal to input voltage
Galvanic isolation Galvanic isolation between power and control (inputs, outputs and power supplies)
Frequency range of
the power converter
Current limit 150% of nominal drive full load amperage (FLA) for 60 s
Switching frequency Selectable from 2 kHz to 16 kHz (1)
Speed reference AI1: 0 V to +10 V, Impedance = 30 kOhms, AI3: 4 mA to 20 mA, Impedance = 250 kOhms
Frequency resolution in
analog reference
Speed regulation V/f: determined by motor slip, typically 3% SLFV (sensorless flux vector): 1%
Efficiency Typically greater than 95%
Inputs and outputs 3 Multi-function programmable Logic Inputs
Acceleration and
deceleration ramps
Motor protection Class 10 and Class 20 overload protection with bypass in addition to controller internal electronic thermal protection
Keypad display Self-diagnostics with fault messages in three languages. Also refer to instruction manual, 30072-451-61
0.1 Hz to 500 Hz (factory setting of 60 Hz maximum)
0 mA to 20 mA (reassignable, X–Y range with keypad display) Manual speed control via keypad
0.1 Hz to 100 Hz (10 bits)
2 Analog inputs; VIA (4 mA to 20 mA or 0 V to 10 V), VIB (0 V to 10 V)
1 Analog output; X mA to Y mA or 0 V to 10 V, software selectable
2 Assignable output relays; 1 fault relay, 1 assignable relay 1 RJ45 RS485 Modbus port
0.1 s to 999.9 s (adjustable in 0.1 s increments)
Environmental Specification
Storage temperature -13° F to +158° F (-25° C to +70° C) with vent cover removed and without derating
Operating temperature +14° F to +122° F (-10° C to +50° C)
Humidity 95% with no condensation or dripping water, conforming to IEC 60068-2-3
Altitude 3300 ft (100 m) maximum without derating; derate the current by 1% for each additional 330 ft (100 m)
Enclosure Type 1
Pollution degree Pollution degree 2 per NEMA ICS-1 and IEC 60664-1
Resistance to vibrations
(power converter only)
Resistance to shocks
(power converter only)
Transit test to shock Conforming to National Safe Transit Association and International Safe Transit Association test for
Codes and standards UL listed per UL 508C as incorporating Class 10 and Class 20 electronic and electromechanical overload
Accessories Catalog Numbers
Modbus Cable for PCSoft VW3A8106
EZ-M mounting channel, 72 in. length EZM72MC
LonWorks communication card for field mounting VW3A21312
According to IEC 60068-2-6:
1.5 mm zero to peak from 3 Hz to 13 Hz
1 g from 13 Hz to 150 Hz
According to IEC 60068-2 15 g, 11 ms
packaging weighing 100 lbs or less
protection. Conforms to applicable NEMA ICS, NFPA, IEC and ISO 9001 standards
7
Features
Keypad display for configuration and monitoring
• Optional LCD keypad
Through the door disconnect
• Electrical disconnect circuit breaker handle with electrical
lock-out/tag-out
Front access selector and lights
• Adjustable Frequency Controller (AFC) – off – bypass
selector switch
• Power-on mode red LED indicator
• Bypass mode green LED indicator
EZ-M channel mounting
• EZ-M mounting feature interface built into the enclosure makes
parallel alignment of multiple drives quick and easy with an EZ-M
mounting channel
Hinged NEMA 1 rated enclosure
• Hinged door for quick and easy interior access
• Run status LED
Conduit knockouts
• Conduit knockouts on bottom of enclosure for quick and easy
wiring to line and load terminals and control wiring terminations
Short-circuit protection
• Square D circuit breaker offers electrical disconnect and over
current protection
• 100,000 A interrupt current (AIC) fully coordinated current rating
to UL 508C and NEMA ICS7.1
Bypass contactor or optional non-bypass contactor
• Full voltage bypass contactors with electrical interlocks allow for
emergency full speed operation
Terminal block
• Easy customer control wiring interface with terminal
block connections
Document Number 8800BR1104
This document has been
printed on recycled paper
May 2011 er
©2011 Schneider Electric. All Rights Reserved. Schneider Electric, Make the most of your energy, Modbus, Altivar and Square D are trademarks owned
by Schneider Electric Industries SAS or its afliated companies. All other trademarks are the property of their respective owners. Part Number 998-4526
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