FX AND VFX SERIES
INVERTER/CHARGER
Installation Manual
Includes Mounting, Installation, and Product Registration
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Warranty Introduction
Dear OutBack Customer,
Thank you for your purchase of OutBack products. We make every effort to assure our power conver-
sion products will give you long and reliable service for your renewable energy system.
As with any manufactured device, repairs might be needed due to damage, inappropriate use, or unin-
tentional defect. Please note the following guidelines regarding warranty service of OutBack products:
• Any and all warranty repairs must conform to the terms of the warranty.
• All OutBack equipment must be installed according to their accompanying instructions and manuals
with specified over-current protection in order to maintain their warranties.
• The customer must return the component(s) to OutBack, securely packaged, properly addressed,
and shipping paid. We recommend insuring your package when shipping. Packages that are not
securely packaged can sustain additional damage not covered by the warranty or can void warranty
repairs.
• There is no allowance or reimbursement for an installer’s or user’s labor or travel time required to
disconnect, service, or reinstall the damaged component(s).
• OutBack will ship the repaired or replacement component(s) prepaid to addresses in the continental
United States, where applicable. Shipments outside the U.S. will be sent freight collect.
• In the event of a product malfunction, OutBack cannot bear any responsibility for consequential
losses, expenses, or damage to other components.
• Please read the full warranty at the end of this manual for more information.
About OutBack Power Systems
OutBack Power Systems is a leader in advanced energy conversion technology. Our products include
true sine wave inverter/chargers, maximum power point charge controllers, system communication
components, as well as breaker panels, breakers, accessories, and assembled systems.
Notice of Copyright
FX and VFX Series Inverter/Charger Installation Manual © 2007 All rights reserved.
Disclaimer
UNLESS SPECIFICALLY AGREED TO IN WRITING, OUTBACK POWER SYSTEMS:
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT,
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE
USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.
Contact Information
OutBack Power Systems
19009 62nd Ave. NE
Date and Revision • September 2007 REV A
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TABLE OF CONTENTS
Welcome to the OutBack Power Systems FX Series Inverter/Charger System.............................................2
Safety.................................................................................................................................................................................................2
FX Series Inverter/Charger Models...........................................................................................................................................2
Parts Included........................................................................................................................................................................................2
Safety Instructions...............................................................................................................................................................................3
System Protection...............................................................................................................................................................................5
DC Wiring Origination....................................................................................................................................... ...............................5
AC Wiring Origination.......................................................................................................................................................................6
AC Wiring Compartment Board................................................................................................................... ..............................6
AC and DC Grounding Requirements............................................................................................. .......................................7
FX Parts and Accessories.................................................................................................................................................................8
Mounting..................................................................................................................................................................................................9
Low Voltage Terminals...................................................................................................................................................................10
Wire Connections.............................................................................................................................................................................11
AC Wiring Notes for the Non-Mobile FX.............................................................................................................................13
AC Wiring Notes for the Mobile FX........................................................................................................................................14
Low Voltage Wiring..........................................................................................................................................................................15
Inverter and On/Off...............................................................................................................................................................15
Auxiliary Output (AUX+ / AUX-).....................................................................................................................................16
XCT+ / XCT-................................................................................................................................................................. ...............17
RTS, MATE/HUB Wiring..................................................................................................................................................................17
System Installation...........................................................................................................................................................................18
Single FX System.....................................................................................................................................................................18
Single or Series Parallel Dual FX Configuration....................................................................................................19
Paralleled Dual FX System .................................................................................................................................................22
Series/Parallel Quad FX System......................................................................................................................................23
3-Phase System............................................................................................................................................. ...........................24
Generator Interfaces.......................................................................................................................................................................26
Mobile FX Information..................................................................................................................................................................27
Installation Check List....................................................................................................................................................................28
Appendix...............................................................................................................................................................................................29
Voltage, Current, and Frequency Ranges.....................................................................................................................29-31
Maximum Overcurrent Protection Ampacity...................................................................................................................32
Wire Sizes...............................................................................................................................................................................................32
Maintenance........................................................................................................................................................................................33
Warranty.................................................................................................................................................................................................34
Product Registration.......................................................................................................................................................................35
1
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Welcome to the OutBack Power Systems FX Series Inverter/Charger System
The FX Series Inverter/Charger offers a complete power conversion system—DC to AC, battery
charging, and an AC transfer switch—and can be used as a stand-alone or back-up application. It is
designed for indoor or enclosed locations.
OutBack Power Systems does everything possible to assure the components you purchase will
function properly and safely when installed as instructed according to local and national electrical
codes (NEC). Please read all of the following instructions and the instructions that come with any
other OutBack components that make up your power system. Further instructions on individual FX set-
ups as well as systems assemblies are included with the FLEXware manuals.
• The non-Mobile FX is ETL listed to UL1741 (Inverters, Converters, Controllers, and Interconnection
System Equipment for Use with Distributed Energy Resources)
• All Mobile FX Series Inverter/Chargers are ETL listed to UL 458.
The FX and VFX Series Inverter/Charger Installation Manual covers the following information:
• Safety
• FX parts, standard and optional
• Initial inspection of the component
• Preparing the mounting surface
• Fastening the FX to the mounting surface
• General electrical information
FX Series Inverter/Charger Models
Sealed Units (designed for harsher environments, but still require overhead and sidewall protection)
• FX 2012 T (12 VDC/2000 VA)
• FX 2024 T (24 VDC/2000 VA)
• FX 3048 T (48 VDC/3000 VA)
Vented Units (designed for more protected environments)
• VFX 2812 (12 VDC/2800 VA)
• VFX 3524 (24 VDC/3500VA)
• VFX 3648 (48 VDC/3600VA)
Each model FX has a single phase output marked with this symbol:
Each inverter puts out a sine wave waveform marked with this symbol:
Parts Included
• One FX Series Inverter/Charger
• One“WARNING ELECTRICAL SHOCK”sticker to place on the exterior of the FX
• One packet of silicone grease to protect CAT 5 cable connections
• One installation manual
• One programming manual
• One Turbo Kit (sealed units)
• One DC Wiring Cover or DCC (vented units)
2
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READ FIRST!
IMPORTANT SAFETY INSTRUCTIONS
Read all instructions and cautionary markings on the FX, the batteries and all appropriate sections of
this installation and user manual as well as other component manuals before using the system.
Be cautious around electricity, electrical components, and batteries. Shocks, burns, injury, and even
death can occur if an installer comes in contact with electricity.
Install all components and wiring according to national and local electrical and building codes. This
includes:
• Submitting a plan to the local building department
• Passing inspection
• Requiring a licensed electrician to do the work when mandated
OutBack Power Systems cannot be responsible for system failure, damages, or injury resulting from
improper installation of their products.
Use only the recommended DC and AC wire sizes or greater. Be sure all wires are in good condition.
Install the FX in a dry location, preferably indoors.
• Install the FX in a shaded area out of direct sun
light for best operation.
• For installations where the FX may be exposed to water spray, a sealed FX must be used and
mounted either with the base down (shelf mounting) or with the AC wiring compartment facing
down (wall mounting).
• If mounted with the base down, water cannot be allowed to accumulate around the FX’s base. There
is a drainage system on the base of the FX to dispel condensation.
• If submerged, water can enter this drain and cause failure.
• The Vented FX (VFX) must be installed in a weather-proof enclosure or enclosed area.
It is not designed for exposure to water or excessive wind-blown dust and debris.
INITIAL INSPECTION
Your FX is stoutly packaged for secure shipping. Please inspect the packaging and component for
damage prior to intallation.
3
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WARNING: WORKING NEAR LEAD ACID BATTERIES CAN BE DANGEROUS. BATTERIES
GENERATE EXPLOSIVE GASES DURING NORMAL OPERATION.
Design the battery enclosure to prevent accumulation and concentration of hydrogen gas in“pockets”
at the top of the enclosure. Vent the battery compartment from the highest point to the outside. A
sloped lid can also be used to direct the flow of hydrogen to the vent opening.
CAUTION
To reduce risk of injury, charge only deep-cycle lead acid, lead antimony, lead calcium, gel cell or
absorbed glass mat type rechargeable batteries. Other types of batteries may burst, causing personal
injury and damage. Never charge a frozen battery.
PERSONAL PRECAUTIONS
• Someone should be within range of your voice to come to your aid if needed.
• Keep plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
• Wear complete eye protection. Avoid touching eyes while working near batteries. Wash your hands
with soap and warm water when done.
• If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters an
eye, flood the eye with cool running water at once for at least 15 minutes and get medical attention
immediately following.
• Baking soda neutralizes lead acid battery electrolyte. Keep a supply on hand in the area of the
batteries.
• NEVER smoke or allow a spark or flame in vicinity of a battery or generator.
• Be extra cautious to reduce the risk of dropping a metal tool onto batteries. It could short-circuit the
batteries or other electrical parts can result in fire or explosion.
• Remove personal metal items such as rings, bracelets, necklaces, and watches when working with
a battery or other electrical current. A battery can produce a short circuit current high enough to
weld a ring or the like to metal, causing severe burns.
4
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SYSTEM PROTECTION
An FX Series Inverter/Charger is part of an electrical system that protects:
• You
Each FX must be part of a permanently grounded
• The wires
electrical system (see page 7). Grounding protects
people and equipment from electrical shock.
Grounding must be done according to local and
national electrical codes.
• The components
• The devices served by the system
OutBack circuit breakers protect wiring by limiting
the amount of current entering a system. All
wired electrical systems require circuit breakers or
fuses for protection.
OutBack offers both breakers and fuses for over-
current protection. If they are provided by other
vendors, they must be properly rated.
DC WIRING ORIGINATION
DC brass battery terminals with 8M x 1.25 stainless steel threaded studs
Red=positive
Black=negative
Battery terminal covers
• Never install extra washers between the
terminal mounting surface and the battery
cable lug—the connection must be direct and
secure.
Nut
Lock Washer
Flat Washer
Battery Cable Lug
• Always install breakers or fuses within the
positive battery cable.
Stud
• Torque 2/0, 4/0, or larger NEC approved cables
rated 75° or higher to 60-inch pounds.
5
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AC WIRING ORIGINATION
Lexan cover protects AC Wiring
Compartment Board
AC Wiring Board
AC WIRING COMPARTMENT BOARD
AC terminal Block--secures AC connections
to the FX using set screws
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• AC HOT OUT supplies power to the loads.
• AC NEUTRAL OUT acts as neutral leg for loads
supplied by the FX.
• CHASSIS GROUND connections are common
and act as grounds for both the incoming and
outgoing AC circuits.
• AC NEUTRAL IN acts as the neutral leg for AC
power supplied by either the grid or a generator
to the FX.
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• AC HOT IN connects incoming AC from the grid
or a generator to the FX. This AC is used to run
loads and recharge batteries.
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Note: “CHASSIS GROUND”in the AC terminal
block reads as“NEU/GROUND BOND”ON FX
MOBILE SERIES.
6
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AC AND DC GROUNDING REQUIREMENTS
• Connect only to a grounded, permanent wiring system. Ensure there is only one neutral-ground
connection in the system at any time. Some codes require this connection be made at the main
panel only.
• If the system has a generator, its neutral-ground connection will probably need to be disengaged.
• For all installations, the negative battery conductor should be bonded to the grounding system at
one (and only one) point in the system.
• The FX should never be positive grounded.
the equipment ground on each is marked with this symbol:
Box lug for grounding the FX chassis
7
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FX PARTS AND ACCESSORIES
FX-DCC (DC COMPARTMENT COVER)
Covers the DC terminal area and provides space to mount
other components such as a DC current shunt
(can be used with or without the FX-DCA).
TURBO FAN COVER
FX-DCA (DC CONDUIT ADAPTER)
• Allows the connection of two-inch TSC (Traffic
Signal Conduit) to the FX
FX-ACA (AC CONDUIT ADAPTER)
• Extends the AC wiring compartment
• Connects to OutBack’s FLEXware enclosures
• Protects and secures conduit and cables
• Allows for AC breakers and GFCI mounting
• Connects to OutBack’s FLEXware enclosures
AC CONDUIT PLATE
• AC conduit connects to the AC Conduit Plate for
installations which do not utilize an ACA.
BATTERY TERMINAL COVERS
• The caps are made of stiff plastic with a snap-on de-
sign; remove them carefully using a flat-blade screw-
driver inserted into the slots on the sides of each cover.
• DC conduit may be required for exposed installations.
• FX-DCA and FX-ACA cover options allow conduit con-
nection.
• Always keep the battery terminal covers installed.
8
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21”
Weight is approximately 62 pounds
MOUNTING
• The FX Series Inverter/Charger is approved for indoor or enclosed protected mounting only.
• An FX weighs approximately 62 lbs and must be secured with appropriate fasteners to a sturdy
mounting surface capable of supporting its weight. It is easier for two people to install the FX due to
its weight.
• OutBack FXs can be mounted in any position, but they perform better in locations offering plenty of
air circulation.
• Due to the variance in other mounting methods, OutBack only endorses the use of FLEXware or
previous versions of its mounting plate for installing the FX and associated system components
using M6 X 20mm machine screws (stainless steel for FLEXware and self-tapping for older mounting
plates), one per corner. Follow the instruction manual that comes with each mounting system.
• If mounting the FX on other surfaces such as plywood, wall studs, or masonry, use appropriate
fasteners to support approximately its weight. OutBack cannot be responsible for damage to the FX
if it is attached with inadequate fasteners.
• Install and secure each FX before attaching any wiring.
9
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LOW VOLTAGE TERMINALS
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Note: Keep Control
Wiring Terminal Block
screws tight and the
block itself secured tightly
to AC Board. Otherwise,
the FX can malfunction.
The Terminal Block can be
unplugged for easier wire
installation and removal/
reinstallation of the FX.
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Control Terminal
Wiring Block
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Jumper
INVERTER ON/OFF:
allows for manual
AUX OUTPUT
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(AUX+/AUX-): 12VDC
at 0.7 amps (8.4 watts)
maximum is available at
these terminals; the AUX’s
default is to drive cooling
fans or the Turbo Fan.
switch to control the
FX (default operation
is“ON”); controlled
by the MATE when
the installed jumper
connecting these
terminals is present.
XCT+/ECT- are non-
operational terminals (do
not connect).
10
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WIRE CONNECTIONS
Note: A system’s individual voltage requirements (120 single phase, 120/240 split phase, or 3-phase) as
well as how each FX is to function all determine how the FXs are wired. Each FX must be wired to the
logical leg or phase of the system. Each FX must be programmed or“stacked”according to this phase.
Please see the FX and VFX Series Inverter/Charger Programming Manual before connecting any wires to
or from the FX.
AC
Follow these steps to wire the FX to your system:
1. Shut all AC breakers off or remove any fuses before connecting any wiring.
2. Shut off all DC breakers, including the PV breakers.
3. With all power off, run lengths of 6 AWG wire between the AC Wiring Compartment Board AC out
terminals and a 30 or 60 amp over current protection circuit breaker depending on the FX model.
The breaker should be installed inside of a metal chassis such as OutBack’s FLEXware series, PS-2,
PS-4, or an existing panel.
4. With the over current protection connected, run lengths of 6 AWG wire between the AC Wiring
Compartment Board AC IN terminals and the AC input breaker. The breaker should be installed
inside of a metal chassis such as OutBack’s PS-2, PS-4, FLEXware series or an existing panel. The AC
input hot conductor must be supplied through a 60 amp maximum AC branch rated circuit breaker.
Note: Connect Mobile FX equipment to an AC circuit with 30 amp maximum branch-circuit over-
current protection (as per NEC, ANSI/NFPA 70).
While 60 amp over-current protection reduces the risk of fire, for further reduction,
do not connect a single FX to both hot legs of a 120-240 VAC AC load center having
multi-wire (common neutral) branch circuits connected. Use either two FX Series
Inverter/Chargers wired in a series configuration or an FW-X240 Auto Transformer
instead.
DC
• Use crimped and sealed copper ring terminal lugs with 5/16”hole or compression-type lug to
connect battery cables to DC terminals. Soldered cable lugs are also acceptable.
• Use recommended cable sizes (see page 32) to reduce losses and ensure high performance of FX
(smaller cables can reduce performance and possibly damage the unit).
• Keep cables together (e.g., using a tie-wrap) as much as possible.
• Ensure cables pass through the same knockout and conduit fittings to allow inductive currents to
cancel.
11
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TORQUE REQUIREMENTS
CONNECTION
AC and PV breakers
DC shunt
TORQUE IN POUND MEASURES
to 22 inch-lbs = 2.48 Nm
to 15 foot-lbs = 20.4 Nm
to 10 foot-lbs = 13.6 Nm
to 10 foot-lbs = 13.6 Nm
to 30 inch-lbs = 3.38 Nm
DC battery connections
FX’s DC Terminals
FX’s AC Terminals
Table 1 Torque Values for Installation
12
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AC WIRING NOTES FOR THE NON-MOBILE FX
AC HOT OUT
• AC hot output conductor (black) wire
gauge must be sized to the breakers and
loads.
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AC NEUTRAL OUT/AC NEUTRAL IN
• Both neutral terminals are common with
each other within the FX.
• Only one neutral needs to connect at the
terminal if a separate common neutral bus
bar is installed.
CHASSIS GROUND
• Both CHASSIS GROUND terminals are
common within the FX.
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• The AC input and AC output ground wires
can connect to these terminals or one can
be connected if a common ground bus
bar is installed.
AC HOT IN
• The AC hot input conductor (black) must
be supplied through a 60 amp maximum
AC branch rated circuit breaker.
• 6 AWG wire is required for the FX’s AC
transfer switch.
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13
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AC WIRING NOTES FOR THE MOBILE FX
AC HOT OUT
• Supplies the AC hot output conductors
through a 30 amp maximum AC branch
rated circuit breaker using 6 AWG wire and
connect to the AC
AC NEUTRAL OUT/AC NEUTRAL IN
• Connects the AC neural input conductor to
the AC NEUTRAL IN terminal.
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• Connects the AC neutral output conductor
to the AC NEUTRAL OUT terminal.
• Do not assume these terminals are
common in the Mobile FX.
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� � � � � � � � � �
� � � � � � � � � � � � � � � �
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CHASSIS GROUND
• Connects both the AC input and AC output
ground conductors to the CHASSIS GROUND
and NEU/GROUND BOND terminals.
• If there is only one Mobile FX in the system,
leave the copper bus (provided) installed
between the CHASSIS GROUND and NEU/
GROUND BOND terminals. If there is more
than one Mobile FX in the system, remove
the copper bus from every Slave FX.
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AC HOT IN
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• The AC hot input conductor (black) must be
supplied through a 30 amp maximum AC
branch rated circuit breaker and connected
to the AC HOT IN.
• 6 AWG wire is required for the FX’s AC
transfer switch.
14
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LOW-VOLTAGE WIRING
This six-position terminal block can be
unplugged to make wiring easier and to
simplify the removal and reinstallation of an FX.
It must be securely and completely plugged
in for proper FX functioning. Otherwise,
operational errors can occur.
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Control Wiring Terminal Block
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12 VDC at 0.7 amps (8.4 w) is available at
the AUX+/AUX- terminals
A switch can be wired to the INVERTER
and ON/OFF terminals to manually
control the FX
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XCT+/XCT- are not operational
INVERTER and ON/OFF
• Replacing the pre-installed jumper connecting the ON/OFF terminals with a switch allows manual control of
the FX.
• Without an ON/OFF switch, the inverter(s) will always be ON.
• Cycling the switch again returns the inverter to the ON mode.
INVERTER ON/OFF
Control Wiring Terminal Block,
side view
Jumper
15
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Prior to installing an ON/OFF switch, if the FX’s AC output is off, check that the jumper is
present and well-connected before installing a switch. You want to confirm the system is
in good working order. Suggested switches include Push On/Push Off Switches (275-671,
275-1555, 275-1565, 275-617, and 275-011) from Radio Shack.
Should you decide to install an OutBack MATE at a later date, bear in mind the installed
switch overrides the control provided by the MATE if the switch is set to OFF. If the switch
is set to ON, the MATE will function normally and control the inverter(s).
• When a system is ordered with a MATE, the MATE handles all FX ON/OFF functions.
AUXILIARY OUTPUT ( AUX + / AUX - )
The Auxiliary output system uses the AUX + and AUX – terminals. It is programmed through the MATE
to do a variety of tasks:
• The default use for these terminals drives the OutBack FX Turbo Kit or DC12-FAN fan for external
cooling.
Note: These terminals should not be connected to any type of DC load greater than one amp.
• The FX includes internal electronic over-current protection for the AUX 12 VDC output circuit which
auto resets if it is short-circuited. No additional fuses are required.
• For automatic or advanced generator start functions, the Auxiliary Output can drive a 12V automo-
tive relay for the two-wire starting circuitry of a generator. OutBack recommends a good quality
gold-plated relay.
Note: OutBack Power Systems does not support three-wire start generators; however, a three-wire to
two-wire conversion kit is available from an electronic control manufacturer such as Atkinson Electron-
ics.
XCT + / XCT -
These terminals are not operational at this time.
16
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RTS, MATE/HUB WIRING
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RJ-11 modular jack connects RTS, the optional
external battery temperature sensor.*
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RJ-45 jack connects MATE or HUB to FX using
CAT5 cable.**
*When a HUB is used, plug the RTS into the
Master FX, which should be plugged into
HUB’s Port 01. The RTS cable is folded and
routed under the AC Wiring Compartment’s
Lexan cover, fitting into a small indentation in
the aluminum casting between the battery
terminals. ONLY USE THE OUTBACK RTS; OTHER
BRANDS YIELD INCORRECT READINGS.
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**If the system has multiple FXs and/or OutBack
Charge Controllers, a HUB is required.
Status Lights
LED Color
LED Action
LED Indicates
Green
Yellow
Red
O
Solid GREEN
Flashing GREEN
Off
Solid YELLOW
Flashing YELLOW
Off
Inverter ON
Search Mode or Slave Power
Inverter OFF
AC Source is Connected
AC Input Live—Waiting to Connect to the FX
No AC Input Present
Battery Lights
O
O
Solid RED
Error—An Error Message will be automatically displayed
on the MATE
Flashing RED
Warning—A non-critical fault happened to the FX; the
MATE can access this info.
LED Color
Green
Yellow
Red
12 VDC
24 VDC
48 VDC
O
O
O
(FULL)
(OK)
(LOW)
12.5 or higher
11.5 to 12.5
11.5 or lower
25.0 or higher
23.0 to 25.0
23.0 or lower
50.0 or higher
46.0 to 50.0
6.0 or lower
17
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SAMPLE INSTALLATIONS
SINGLE FX SYSTEM
• All non-Mobile FX AC wiring must handle 60 amps AC or more.
• A 60A input breaker must be used for a non-Mobile FX and a 30A input breaker for a Mobile FX.
• A single FX can continuously power two to three 6KW of loads depending on which model is used.
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SERIES OR SERIES/PARALLEL DUAL FX CONFIGURATION
• This system can continuously power four 7.2kW of loads depending on which model is used.
• All non-Mobile FX AC wiring must handle 60A AC or more.
• A Mobile FX requires 30A input breakers.
Note:
• Stacking FXs in series/parallel means there are FXs directly connected to two separate 120 VAC
output legs. These legs produce 240 VAC between them (the series portion). This allows all of the
FXs to power either of the 120VAC output legs (the parallel portion). Series/parallel stacking requires
an FW-X240 Auto Transformer and must use“OutBack”stacking programming.
• When the FXs are connected in series for 120/240 VAC, the FW-X240 Auto Transformer can be
connected to the AC output; both FXs are then available on either 120 VAC output circuit. This allows
higher efficiency and better performance as heavy 120 VAC loads are powered by both FXs. The
FW-X240 Auto Transformer also allows the Master to power loads on either 120 VAC output circuit
with the Slave FX off, reducing idle power consumption and improving system efficiency.
• The Slave FX must be programmed through the MATE as a“Classic Slave’”(series stacking, no FW-X240
Auto Transformer) or as“OB Slave L2”(series/parallel stacking, FW-X240 included). The FX connected
to Port 01 of the HUB is always the Master (1-2ph MASTER)
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Series/Parallel Using Two FXs
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Series/Parallel Using Four FXs
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PARALLELED DUAL FX SYSTEM
• All AC wiring from the AC source and to the AC loads must collectively handle 100 amps AC or more.
• All other AC wiring capacity must equal 60 amps AC (Mobile FX units must handle 30 amps AC).
• A paralleled dual FX system can continuously power four 7.2kW of loads depending on which model
is used.
Note: Program the lowest-installed FX as Master (1-2ph MASTER) and the second FX as an OutBack L1
Slave (OB SLAVE L1)
Parallel/Dual System with Two FXs
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SERIES/PARALLEL QUAD FX SYSTEM
• All AC wiring from the AC source and to the AC loads must collectively handle 120 amps AC or more.
• All other AC wiring must handle a capacity of 60 amps AC (Mobile FX AC wiring must handle 30
amps).
• This system can continuously power eight 14.4kW of loads depending on which model is used.
• Connecting more power than the continuous rating of the FX may cause breakers to trip or the FX
to shut off its AC output.
• A HUB, MATE, and FW-X240 must be connected to successfully stack these FXs in series/parallel.
Notes:
• Program the lowest-installed FX as the Master (1-2ph MASTER), the first Slave as an Outback L1 Slave
23
3-PHASE FX SYSTEM
• This system produces 120VAC per phase and 208VAC from phase to phase. There can only be one
FX per phase on a 3-phase system.
• The non-Mobile AC wiring from the AC source and to the AC loads must handle 60 amps AC.
• All other non-Mobile AC wiring must handle a capacity of 60 amps AC; Mobile must handle 30 amps
AC.
• This system can power continuously up to 10.8kW of loads depending on which model is used.
• Connecting more power than the continuous rating of the FX may cause breakers to trip or the FX
to shut off its AC output.
• The jumper in the HUB must be moved for 3-phase configuration (please see the HUB Installation
and User Guide).
Note: Program the bottom FX as Master (3ph MASTER) and the two lower FXs as 3-phase Slaves
(3ph SLAVE). Keep the phases in order: phase one is connected to the FX programmed L1; phase
two is connected to L2; and phase three to L3 (or phases A, B, and C to inverters A, B, and C).
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Three-Phase System
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GENERATOR AUTO START
The following schematic shows how to hook up a relay that interfaces with the two-wire start
generator. Three-wire start generators require an adapter like the Atkinson GSCM available at
Most 12V relays will work for generator starting.
Select one between 2 and 30 amp contacts. Two
such relays are:
1) Radio Shack SPST 30 amp Auto
Relay #275-226
2) Grainger 10 amp SPDT relay #5ZH14
MFR: Omron #G2R-1-S-DC12
The socket for this relay is:
Grainger #6C898
MFR: Omron #P2RF-05-E
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MOBILE FX INFORMATION
When a Mobile system has the option of using either an onboard generator or the utility grid or shore
power (see next diagram) as their AC input:
• Both the AC“Hot”and AC“Neutral”lines must be connected to the appropriate source.
• A connection can be made using a double-pole, double-throw switch (currently unavailable from
OutBack, but available from electrical component suppliers) which has one connection each for AC
hot and AC neutral.
• This switch must be rated to handle the system’s maximum AC voltage and AC current.
SHORE
GEN
h n g
h n g
Mobile FX
h
n
g
Double-Pole
AC INPUT
Double-Throw
Switch
Ground-Switching
Contact
The Mobile FX’s AC input consists of a Hot (H), Neutral (N) and Neu/Ground Bond (G). The Mobile FX
has an internal“Ground-Switching Contact”that will close when it connects to an AC input.
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INSTALLATION CHECK LIST
ITEM
YES
NO
All manuals read and reviewed?
FX
OutBack Charge Controller
MATE
HUB
System mounted with the recommended number and sized fasteners?
System installed according to National Electrical Code (NEC) and local codes?
System inspected?
System permanently grounded?
Did the installer use OutBack recommended wire type and gauge adjusted for
temperature ratings and length?
All AC wiring rated for 75° C or higher?
Battery cables rated 75° C or higher?
6 AWG wire used for non-Mobile FX AC Input Hot?
10 AWG or larger wire used for AC HOT OUT?
10 AWG wire or larger used for Mobile FX AC Input Hot?
Non-Mobile FX connected to AC circuit with 60 amp maximum branch-circuit
over-current protection?
Mobile FX connected to AC circuit with 30 amp maximum branch-circuit
over-current protection?
All cables torqued to OutBack specifications?
AC and PV breakers to 22 inch-lbs?
All DC connections to 10 foot-lbs?
FX AC terminals to 30 inch-lbs?
FX battery breaker to 45 inch-lbs?
All terminal block screws torqued to 2.5 foot-lbs?
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APPENDIX
RATINGS
NOMINAL AC OUTPUT VOLTAGE OF AN FX SYSTEM
Single Phase
120 VAC at 60 Hz
Series Stacked
120 VAC at 60 Hz per AC output leg / 240 VAC at 60Hz between the AC output legs
120 VAC at 60 Hz on one AC output leg
Parallel Stacked
ree Phase Stacked
120 VAC at 60 Hz per AC output leg (limit three) / 208 VAC at 60 Hz between AC output legs
RECOMMENDED FX DC VOLTAGE RANGE
Note: The last two digits in the model number designate the nominal DC voltage. Example: FX2024MT
– 24V DC Voltage.
12V Systems
24V Systems
32V Systems
48V Systems
11 – 16 VDC (VDC = volts DC)
22 – 32 VDC
29 – 43 VDC
44 – 64 VDC
MAXIMUM DC INPUT CURRENT
Note: This is the maximum DC current the FX will draw from the battery when starting very large AC loads.
It is not used for sizing the DC disconnect or selecting DC cable gauge. It is used to select the minimum
reasonable battery capacity.
12V FXs
24V FXs
32V FXs
48V FXs
600 ADC per FX (ADC = amps DC)
300 ADC per FX
225 ADC per FX
150 ADC per FX
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RATED DC INPUT CURRENT
Note: This is the maximum continuous DC current that the FX will draw from the batteries when inverting.
FX2012(M)T
FX2524(M)T
FX2532(M)T
FX3048T
190 ADC (ADC = Amps DC)
95 ADC
90 ADC
60 ADC
VFX2812(M)
VFX3524(M)
VFX3232(M)
VFX3648
265 ADC
170 ADC
115 ADC
85 ADC
AC INPUT OPERATING VOLTAGE RANGE
Note: This is the recommended AC input voltage range to be supplied to the FX. Voltages outside of
this range may damage AC loads connected to the FXs AC output terminals.
All FX Series Inverter/Chargers
90 – 150 VAC (VAC = volts AC)
MAXIMUM AC INPUT CURRENT
An AC input source connected to the FX supplies power for two separate internal AC circuits – the AC
transfer switch and the battery charging system. The AC transfer switch transfers the AC input power
to the AC loads. The FX’s battery charger will“back off”if the total AC loads—including the charger—
exceed the AC input current limit (default setting is 28 AAC). This“Input Limit”can be adjusted using
the MATE to avoid overloading a generator or trip a circuit breaker. If your generator cannot produce
28 AAC or you are connecting to an AC input source that has a breaker that is rated for less than 30
AAC, please refer to the FX and VFX Series Inverter/Charger Programming Manual to change this
setting.
All “Mobile” FXs
All 120 VAC FXs
30 AAC per FX (AAC = Amps AC)
60 AAC per FX (AAC = Amps AC)
MAXIMUM CURRENT FOR BATTERY CHARGER
Due to heat restraints, the FX limits incoming AC current to recharge the battery. Please refer to the FX
and VFX Series Inverter/Charger Programming Manual to adjust this setting. The battery charger has
an efficiency of 90%. Other factors, such as cable losses, might reduce this efficiency.
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MAXIMUM AND DEFAULT AC INPUT AND DC (bulk stage) OUTPUT VALUES
FX2012(M)T
FX2524(M)T
FX2532(M)T
FX3048T
AC Max = 12 AAC (Default = 10 AAC)
AC Max = 14 AAC (Default = 12 AAC)
AC Max = 14 AAC (Default = 12 AAC)
AC Max = 14 AAC (Default = 12 AAC)
AC Max = 16 AAC (Default = 14 AAC)
AC Max = 20 AAC (Default = 18 AAC)
AC Max = 20 AAC (Default = 18 AAC)
AC Max = 20 AAC (Default = 18 AAC)
DC Max = 100 ADC
DC Max = 55 ADC
DC Max = 40 ADC
DC Max = 35 ADC
DC Max = 125 ADC
DC Max = 85 ADC
DC Max = 60 ADC
DC Max = 45 ADC
VFX2812(M)
VFX3524(M)
VFX3232(M)
VFX3648
AC INPUT FREQUENCY RANGE
Note: If the AC input source is out of the range noted below, the FX will not connect or stay connected.
All FX Models 56 - 64 Hz
MAXIMUM AC OUTPUT CURRENT
This is the amount of surge current that the FX will quickly supply for a split second. Depending on the
size of the surge, the FX can be overloaded for a minimum time of 5 seconds to a maximum time of 30
minutes.
All 12 VDC FXs
All Other FXs
56 AAC per FX for 1 millisecond
70 AAC per FX for 1 millisecond
MAXIMUM CONTINUOUS OUTPUT POWER
An FX Series Inverter/Charger’s model number indicates its maximum continuous output power by
changing the last two digits to zeros. For instance, an FX2012MT has a maximum continuous output
power of 2000VA (volt-amps).
FX2012(M)T
FX2024(M)T
FX2532(M)T
FX2548T
2000 VA (VA = volt-Amps)
2000 VA
2500 VA
2500 VA
VFX2812(M)
VFX3524(M)
VFX3232(M)
VFX3648
2800 VA
3500 VA
3200 VA
3600 VA
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MAXIMUM OVERCURRENT PROTECTION AMPACITY
This rating specifies the proper overcurrent protection ampacity.
• OBDC breakers are panel-mount circuit breakers.
• Class T DC fuses are terminal-mounted and should always be used in conjuncture with a disconnect mechanism.
•
•
FXs used in home installations should use properly sized DC circuit breakers.
A DC breaker includes both overcurrent protection and disconnect capability.
• OutBack Power Systems recommends Class T fuses for marine installations where a DC disconnect is not required.
MODEL
AMPACITY
260 amps
175 amps
175 amps
100 amps
260 amps
260 amps
175 amps
175 amps
DC BREAKER
OBDC-250
OBDC-175
OBDC-175
OBDC-100
OBDC-250
OBDC-250
OBDC-175
OBDC-175
DC FUSE
FX2012(M)T
FX2024(M)T
FX2532(M)T
FX2548T
Class T-400 (Mobile Only)
Class T-300 (Mobile Only)
Class T-300 (Mobile Only)
Not Recommended
VFX2812(M)
VFX3524(M)
VFX3232(M)
VFX3648
Class T-400 (Mobile Only)
Class T-400 (Mobile Only)
Class T-300 (Mobile Only)
Not Recommended
WIRE SIZES
The following chart contains information on wire sizes, the DC resistance of the wires and the
corresponding diameters and areas of these wires. This information can be used to calculate the
voltage drop of the wires or to find an equivalent wire size.
SIZE
DC
(AWG)
CROSS-SECTIONAL AREA
APPROXIMATE DIAMETER
Resistance in Ohms
(1000 feet)
INCHES
MILLIMETERS
2.08
INCHES
.078
.101
.126
.162
.215
.269
.337
.376
.423
.508
.576
.645
MILLIMETERS
1.98
14
12
10
8
6
4
2
1
1/0
2/0
3/0
4/0
3.14
1.98
1.24
0.78
0.50
0.31
0.19
0.15
0.12
0.10
0.08
0.06
.0032
.0051
.0082
.0130
.0206
.0328
.0521
.0657
.0829
.1045
.1318
.1662
3.31
5.26
8.37
13.30
21.15
33.62
42.41
53.50
2.57
3.20
4.11
5.46
6.83
8.56
9.55
10.74
12.90
14.63
16.38
67.43
85.01
107.20
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MAINTENANCE
If damaged or malfunctioning, the FX should be repaired by a qualified user, installer, or service center
following OutBack Power Systems’instructions and guidelines. Please contact your energy dealer for
assistance. Incorrect repairs and/or reassembly risks malfunction, electric shock or fire.
For routine, user-approved maintenance:
• Disconnect all circuit breakers and related electrical connections before doing any cleaning or
adjustments.
• Solar modules may produce hazardous voltages when exposed to light; cover them with opaque
material before servicing any connected equipment or service at night.
• If a remote or automatic generator start system is used, disable the automatic starting circuit and/
or disconnect the generator from its starting battery while servicing it to prevent starting while
servicing.
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WARRANTY
OutBack Power Systems Two Year Limited Warranty
OutBack Power Systems Inc. warrants that the products it manufactures will be free from defects in
materials and workmanship for a period of two (2) years subject to the conditions set forth below.
The limited warranty is extended to the original user and is transferable.The limited warranty term begins
on the date of invoice to the original user of the product. The limited warranty does not apply to any
product or part thereof damaged by a) alteration or disassembly, b) accident or abuse, c) corrosion, d)
lightning, e) reverse polarity, f) repair or service provided by an unauthorized repair facility, g) operation
or installation contrary to instructions pertaining to the product.
OutBack Power Systems’ liability for any defective product or any part thereof shall be limited to the repair
or replacement of the product, at OutBack Power Systems’discretion. OutBack Power Systems does not
warrant or guarantee the workmanship performed by any person or firm installing its products.
THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS THAT VARY FROM STATE TO STATE (OR JURISDICTION TO JURISDICTION). OUTBACK POWER
SYSTEMS’ RESPONSIBILITY FOR MALFUNCTIONS AND DEFECTS IN HARDWARE IS LIMITED TO REPAIR
AND REPLACEMENT AS SET FORTH IN THIS LIMITED WARRANTY STATEMENT. ALL EXPRESS AND IMPLIED
WARRANTIES FOR THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF
AND CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN
DURATION TO THE LIMITED WARRANTY PERIOD SET FORTH ABOVE AND NO WARRANTIES, WHETHER
EXPRESS OR IMPLIED, WILL APPLY AFTER SUCH PERIOD. SOME STATES (OR JURISDICTIONS) DO NOT
ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU.
OUTBACK POWER SYSTEMS DOES NOT ACCEPT LIABILITY BEYOND THE REMEDIES SET FORTH IN THIS
LIMITED WARRANTY STATEMENT OR LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES,
INCLUDING WITHOUT LIMITATION ANY LIABILITY FOR PRODUCTS NOT BEING AVAILABLE FOR USE.
SOME STATES (OR JURISDICTIONS) DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION OR LIMITATION MAY NOT APPLY TO YOU.
During the two year period beginning on the invoice date, OutBack Power Systems will repair or replace
products covered under this limited warranty that are returned to OutBack Power Systems’ facility or to
an OutBack Power Systems authorized repair facility, or that are repaired on site by an OutBack Power
Systems authorized repair technician. To request limited warranty service, you must contact OutBack
Power Systems at 360-435-6030 within the limited warranty period. If limited warranty service is required,
OutBack Power Systems will issue a Return Material Authorization (RMA) Number. Mark the outside of
the package with the RMA number and include a copy of the purchase invoice in the package. You
must ship the products back to OutBack Power Systems in their original or equivalent packaging,
prepay shipping charges, and insure the shipment or accept the risk of loss or damage during shipment.
OutBack Power Systems will ship the repaired or replacement products to you freight prepaid if you
use an address in the continental United States, where applicable. Shipments to other locations will be
made freight collect.
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PRODUCT REGISTRATION
Your purchase of an OutBack Power Systems product is an important investment. Registering your
products will help us maintain the standard of excellence you expect from us in terms of performance,
quality and reliability.
Please take a moment to register and provide us with some important information.
NAME: __________________________________
ADDRESS: _______________________________
CITY:____________________________________
STATE:________________ZIP CODE: __________
COUNTRY: _______________________________
TELEPHONE NUMBER: ______________________
E-MAIL: _______________________________
SOLD BY: ______________________________
INSTALLER: ____________________________
PURCHASE DATE: _______________________
MODEL NUMBER:________________________
SERIAL NUMBER: __________________________
Circle all that apply:
Off-Grid Installation
Residential Installation
Commercial Installation
North America Location
Utility Connected Installation
Other ________________
Extended Warranty Application (U.S. and Canada only)
OutBack Power Systems offers an optional three year extension to the standard two year limited
warranty. Purchase of extended warranty coverage is available on products listed below provided
conditions shown are met. Extended warranty coverage must be purchased within 90 days of the
original sale of the product covered.
PRODUCT COST
Any FX Series Inverter/Charger
OutBack Charge Controller
MATE
HUB 4
HUB 10
REQUIRED SURGE PROTECTION
AC Input; AC Output, DC Input
DC Input; DC Output
NA
NA
NA
EXTENDED WARRANTY
$300.00
$100.00
$50.00
$35.00
$50.00
Product Covered
Serial Number
Quantity
Extended Warranty Cost
________________________ _________________________________ _______________ _____________________
________________________ _________________________________ _______________ _____________________
________________________ _________________________________ _______________ _____________________
________________________ _________________________________ _______________ ____________________
Total _______________
Send check or money order payable to OutBack Power Systems. Washington residents please include
8.5% sales tax. Include a completed copy of this application and send to:
OutBack Power Systems
Extended Warranty Program
19009 62nd Ave NE • Arlington, WA 98223 USA
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19009 62nd Avenue NE
Arlington, WA 98223 USA
(+1) 360.435.6030
European Sales Office
Barcelona, ESPAÑA
(+34) 600.843.845
900-0083-01-00 REV A
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