OutBack Power GTFX Series Owner's manual

International Series
GTFX and GVFX
Grid-Interactive
Inverter/Charger
Programming Manual

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.
Contact Information
Telephone: [phone] (North America)
(+34) 93.654.9568 (Barcelona, Spain)
Fax: [phone]
Address: North America
19009 62nd Avenue NE
Arlington, WA USA
E-mail: [e-mail]
Web: www.OutBackPower.com
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.
Warranty Summary
OutBack Power Systems Inc. warrants that the products it manufactures will be free from defects in
materials and workmanship for a period of ve (5) years subject to the conditions set forth in the
warranty detail found inside the back cover of this manual.
OutBack Power Systems cannot be responsible for system failure, damages, or injury resulting from
improper installation of their products.
Notice of Copyright
International Series GTFX and GVFX Grid-Interactive Inverter/Charger Programming Manual
©March 2010 by OutBack Power Systems. All Rights Reserved.
Trademarks
OutBack Power is a registered trademark of OutBack Power Systems.
Date and Revision
March 2010, Revision A

1
TABLE OF CONTENTS
The International Series GTFX and GVFX Grid-Interactive Inverter/Charger....................................................... 2
Safety Instructions.................................................................................................................................................................................... 2
FX Series Inverter/Charger Programming................................................................................................................................. 3
Concerns .............................................................................................................................................................................................. 3
Options.................................................................................................................................................................................................. 3
Components and Connections....................................................................................................................................................... 4
Stacking Options ...................................................................................................................................................................................... 7
OutBack Parallel................................................................................................................................................................................ 7
Three-Phase........................................................................................................................................................................................ 7
Stacking And Assigning FX Status................................................................................................................................................. 8
Programming the FX.............................................................................................................................................................................. 9
Master & Slave.................................................................................................................................................................................11
OB Slave L1........................................................................................................................................................................................12
Three-Phase Slave.........................................................................................................................................................................13
Power Save Levels..................................................................................................................................................................................14
Sell Settings................................................................................................................................................................................................14
Turning AC ON .........................................................................................................................................................................................15
Auxiliary (AUX) Functions ..................................................................................................................................................................17
List of AUX Functions..................................................................................................................................................................20
Adjustable AUX Output Functions.....................................................................................................................................20
Battery Charging.....................................................................................................................................................................................23
Maintenance .............................................................................................................................................................................................23
FX Default Values....................................................................................................................................................................................24
Warranty.......................................................................................................................................................................................................27

2
The International Series GTFX and GVFX Grid-Interactive Inverter/Charger
The International Series GTFX and GVFX Series Inverter/Chargers (also referred to as the FX series) oer
a complete power conversion system — DC to AC, battery charging, and an AC transfer switch—
which provide complete grid-interactive service. They can also be used in a stand-alone or back-up
application. These systems are designed for indoor or enclosed locations.
OutBack Power Systems does everything possible to assure the components you purchase will func-
tion properly and safely when installed as instructed according to local and national electrical codes.
Please read all of the following instructions and the instructions that come with any other OutBack
components that make up your power system. Instructions on setting up individual FX systems, as
well as assembly of larger systems, are given in the International Series GTFX and GVFX Grid-Interactive
Inverter/Charger Installation Manual.
NOTE: This product is not CE compliant for grid-interactive operations.
Grounding Instructions – Each FX should be connected to a grounded, permanent wiring system. For
most installations, the negative battery conductor should be bonded to the grounding system at one
(and only one) point in the DC system. All installations must comply with all national and local codes
and ordinances. System grounding is the responsibility of the system installer.
The equipment ground is marked with this symbol:
The International Series GTFX and GVFX Grid-Interactive Inverter/Charger Programming Manual covers
safety and the programming or “stacking” of multiple FXs using the OutBack Power Systems MATE.
NOTE:
• An OutBack MATE is required to program the FXs beyond their default values.
• If an OutBack Charge Controller is in use, be sure to read its manual for optimum operation with the FX.
• When powered up, the GTFX/GVFX will automatically sense if a utility grid is present and connect to
it after a brief delay. (The duration of this delay varies with AC source and settings.) There is another
brief delay before the battery charging starts. The inverter can sell power to the grid after the batteries
are charged.
IMPORTANT SAFETY INSTRUCTIONS
General Precautions
1. Use caution whenever working around electricity, electrical components, and batteries. There is
always a potential for shocks, burns, injury, and even death if an installer or user comes in contact
with electricity.
2. Read all instructions and cautionary markings on the FX, the batteries and all appropriate sections of
this manual as well as other component manuals before using the system.
3. Be sure each unit is securely installed according to the instructions in the International Series GTFX
and GVFX Grid-Interactive Inverter/Charger Installation Manual.
4. Follow all local and national electrical codes when installing OutBack equipment and components.

3
INTERNATIONAL SERIES INVERTER/CHARGER PROGRAMMING
NOTE: Please see the International Series GTFX and GVFX Grid-Interactive Inverter/Charger Installation
Manual to install, wire, and connect each FX Series Inverter/Charger. This programming manual
assumes all units have been installed and are ready to program according to the way they were wired.
To familiarize yourself with the programming concepts, please read through the entire manual before
programming your system.
• Stacking FX inverters does not refer to physically placing one FX on top of another. It refers to how
they are wired within the system and then programmed for operation. Stacking allows all the
inverters to work together as a single system.
• Stacking assigns the inverters to coordinate their power output and to operate at certain times; this
priority is assigned using the MATE.
NOTE: An OutBack MATE with a code revision of 3.30 or higher is required to recognize and program
grid-interactive FX inverters. When multiple inverters are used, each needs to be assigned a status—
master or slave. (A single FX must serve as the master in most cases.)
• The master FX is the primary and most heavily used unit. A slave FX assists during charging or selling,
when the master cannot handle all of the power.
• This is an orderly process as long as the user assigns each FX correctly. This is mainly a matter of
paying attention to the Port number for each FX when programming with the MATE.
Stacking Concerns
FX inverters should be wired and stacked appropriately to their individual power system. Problems
can occur when:
• An FX is incorrectly wired.
• An FX plugged into a HUB Port is mistakenly programmed (assigned the wrong status) or
misidentied.
Stacking Options
• The GTFX and GVFX Inverter/Chargers can be stacked in “OutBack Parallel”mode, which allows up to
10 inverters to deliver power on a common output bus.
• The GTFX and GVFX Inverter/Chargers can also be stacked in “Three-Phase”mode, to deliver
coordinated power to three-phase loads. One inverter is assigned to each phase.
• A HUB-4 or HUB-10 must be included to stack grid-interactive units. The International Series GTFX
and GVFX cannot perform “time-of-day” selling.
• If the utility grid fails, the GTFX or GVFX seamlessly transfers the loads to the battery bank. When the
utility grid reappears, the inverter system automatically recharges the battery bank in case of future
power outages.
NOTE: The OutBack FW-X240 Auto Transformer cannot be used for stacking with an International
Series Grid-Interactive FX system.
• The following pages describe the physical connections and other steps required before stacking or
programming the inverters. The stacking and programming instructions begin on page 9.

4
The FX connected to Port
01 is always programmed
as the Master.
AC Breakers O DC Breakers O
COMPONENTS AND CONNECTIONS:
1. With all AC and DC breakers OFF, connect all FXs to the HUB with individual lengths of CAT 5 cable.
a) Connect the OutBack MATE after all other components,
including any OutBack Charge Controllers, have been
connected and powered up.
b) If components are installed after powering up the system, it
is necessary to repoll the MATE (please see page 6).
c) With the MATE, a user assigns a status and stacking value to
the FX on each Port. These status and value assignments can
be changed at any time as long as the Master FX is plugged
into HUB Port 01.
• The Master FX is always considered to
be the L-1 or A phase (in a three-
phase system).
POWER HUB
10 9 8 7 6 5 4 3 2 1 2ND
Mate
1st
Mate
Slave FXs plug into Ports 02 and higher
OutBack Charge Controllers plug into any
ports after the last FX is connected.
2nd MATE
port is not
operable
MATE
connects
at 1st MATE
port
BYPASS OUTPUT INPUT
NOTE: Pay attention to the Port number on the screen! Be sure the FX whose status and stacking value
you’re changing is the one you mean to change.

5
AC Breakers O DC Breakers On
2. With the FXs connected to the HUB, turn only the DC breakers ON and power up the components. All AC
breakers should be OFF.
NOTE: Powering up the FX can cause the red ERROR
STATUS light to blink. After 5-10 seconds, the green
INVERTER light should be bright and the ERROR and
AC IN lights dark. The FX is now producing AC output
voltage.
LED Color LED Action LED Indicates
Green Solid GREEN Inverter ON
Flashing GREEN Search Mode or Slave Power
Off Inverter OFF
Yellow Solid YELLOW AC Source is Connected
Flashing YELLOW AC Input Live & Waiting to
Connect to the FX
Off No AC Input Present
Red Solid RED Error: Shutdown due to
fault.
Flashing RED Warning: Noncritical fault.
The MATE has information
on Errors and Warnings.
BYPASS OUTPUT INPUT

6
3. After powering up the components, connect the MATE to the HUB.
a) Plug the MATE into the 1st MATE Port on the HUB.
b) The MATE will power up and should recognize any component connected to the HUB.
c) The MATE can then program the inverters.
d) The fth MATE screen (“Port Assignment”) should display all the FX inverters and any OutBack Charge
Controllers in the system.
MATE Screens
PATH
G’day Mate (C) 2008 Version Searching Port Assignment
OutBack Code a.aa for Devices 1> FX 2> FX 3> CC 4> CC
Power 5> 6> 7> 8>
Systems Serial #xxxxxxxx HUB Found 9> 10> 2M>
Screen EE b.bb
4. To verify that the MATE recognizes each HUB-connected FX and OutBack Charge Controller, disconnect and
then either (a) reconnect the MATE to view its boot-up and repoll sequence or (b) follow this path to manually
repoll:
PATH
M AIN------------------- SETUP----------------- SETUP/MATE/PAGE1 SETUP/MATE/PAGE2 SETUP/MATE/COMM
12.15:30p mate code rev: 4.1.6 choose category: choose category:
choose device: choose category:
SUM STATUS SETUP ADV FX MATE CLOCK CNT GLOW PG2 PG1 SUMRY COMM MAIN BACK REPOLL PC DEBUG
The inverters are now ready to be programmed according to the stacking options described in the
next section.

7
STACKING OPTIONS
International Series Grid-Interactive inverters can be stacked in OutBack Parallel or Three-Phase only.
OutBack Parallel
• FX inverters (2 to 10) are wired to the same 230 Vac output leg or phase.
• The Slave FXs can be programmed to remain at dierent power levels (“Silent” or “On”depending on the need)
to save energy; the Slaves will come on when the power demand requires them.
• This power-saving system is fully automatic and works with or without a MATE connected to the system,
although a MATE is required to program the components. Without a MATE, the user cannot reprogram.
• The AC input (generator or grid) must be a 230 Vac single-phase source.
Note: Although stacking 10 inverters is possible, OutBack’s AC hardware only accommodates
congurations of 2, 4, or 8 units. A system with 8 FX inverters would require 2 OutBack AC Input/Output
Bypass (IOB) Assembly Kits or installing an external manual bypass; 10 inverters would require 3 IOB kits or
an external manual bypass.
THREE-PHASE
• Three FX inverters are connected to three 230 Vac output legs that produce 400 Vac between any two
legs of the system.
• The AC input source (generator or grid) must be a 230 Vac/400 Vac three-phase source.
*A&B
A&C
B&C
Any two
legs*
400 Vac
6 kW
3 kW 230 Vac
3-phase, all
three legs,
9 kW
or
3 kW 230 Vac
3 kW 230 Vac
Phase B
230 Vac
3 kW
Phase A
230 Vac
3 kW
Phase C
230 Vac
3 kW
or
3 kW 230 Vac
LOAD
6 kW
230 Vac
3 kW 230 Vac
LOAD

8
STACKING AND ASSIGNING FX STATUS
Use the MATE to establish the order or hierarchy of all the system inverters by designating each one of
the following (in order as they appear on the MATE):
• Master (parallel stacking or three-phase stacking)
•OB Slave L1 (parallel stacking)
• 3p Classic B (three-phase stacking)
• 3p Classic C (three-phase stacking)
Other options will be displayed, but they are not supported on this FX model.
Master
• This is the default ranking of every FX.
• One master FX is established for every multiple-FX system. It applies to all systems, whether single-phase
or three-phase. The master unit must be connected to port 01 on the HUB.
• Each Grid-Interactive FX can be a master as long as each is connected to a separate battery and a
separate AC output leg (both HOT and NEUTRAL).
OB Slave L1
• OB (OutBack) Slave L1 is the designation of any slave FX in a multi-inverter, single-phase parallel system. It
produces 230 Vac to the same AC bus as the master.
• A slave FX is plugged into Port 02, Port 03, or any subsequent port available on the HUB.
3p Classic B
• In three-phase stacking, the unit which is plugged into HUB Port 02 (phase B) is designated as 3p Classic B.
3p Classic C
• In three-phase stacking, the unit which is plugged into HUB Port 03 (phase C) is designated as 3p Classic C.

9
Once the MATE recognizes each FX (and OutBack Charge Controller), push and hold the rst two soft
keys simultaneously to return to the MAIN menu. To program each FX, go to the ADV/FX/STACK menu
on the MATE navigating with the following steps:
• Press the <ADV> soft key.
NOTE: Pressing and holding the rst two soft keys
at the same time will always bring up the Main
Menu screen.
• Push any soft key on the ADV/SETTINGS/WARNING
screen and go to the ADV/PASSWORD screen.
MAIN--------------------------
12:12:16A
SUM STATUS SETUP ADV
ADV/SETTINGS/WARNING
changes made could adversely aect
system performance
PROGRAMMING THE FX
• The screen displays <132>. Press the <INC> button
until it scrolls to the password 141.
ADV/PASSWORD
enter the password
132
ENTER INC DEC EXIT
ADV/PASSWORD
enter the password
141
ENTER INC DEC EXIT
• Push the <ENTER> soft key.

10
ADV
choose device:
FX CC DC MATE
ADV/FX/PAGE 1----------------
choose category:
ADV INV CHGR PG2
• On the ADV/FX/PAGE 1 screen, press the <PG2>
soft key and go to the ADV/FX/PAGE2 screen.
• In the ADV menu, press the <FX> soft key.
ADV/FX/PG2-------------------
choose category:
PG1 GRID GEN PG3
• Press the <PG3> soft key which leads to the
ADV/FX/PAGE3 screen.
ADV/FX/PAGE3----------------
choose category:
PG2 AUX STACK PG4
• On the ADV/FX/PAGE3 screen, press the <STACK>
soft key.

11
ADV/FX/STACK--------P01
stack Master
phase
DOWN INC DEC PORT
• Stacking the FX Inverter/Chargers begins on this
screen.
ADV/FX/STACK----------P01
stack Master
phase
DOWN INC DEC PORT
• The master FX is always assigned to Port 01.
• Pressing the <PORT> soft key changes the HUB
Port whose value you wish to adjust.
Pressing the <INC> or <DEC> soft keys
changes the stacking phase.
MASTER AND SLAVE

12
OB SLAVE L1
With the Port 01 FX as the master, press the <PORT> soft key to change the remaining Ports and
designate the remaining inverters as slaves. To designate them as OB SLAVE L1 for a paralleled system,
follow the instructions below. To program them as slaves in a three-phase system, proceed to the next
page.
The MATE screen for Port 02 will look like this:
ADV/FX/STACK--------P02
stack Master
phase
DOWN INC DEC PORT
• Press the <PORT> soft key to select the second
inverter on the HUB.
• In the example to the left, the MATE is now ready to
program the FX plugged into Port 02 of the HUB.
• PleasenotethatMasteristhefactorydefault
value for the FX inverter. Each non-master FX
inverter must be programmed accordingly.
ADV/FX/STACK---------P02
stack Classic Slave
phase
DOWN INC DEC PORT
• Press the <INC> soft key. This will advance the
display to the Classic Slave screen. Please note that
the International Series GTFX and GVFX cannot
utilize Classic Slave mode. Press the <INC> soft
key again until the display reads OB Slave L1.
• If you have more than two inverters, push the
<PORT> soft key to advance to the inverter on
P03 (or the next port on the HUB). Once you have
selected the next inverter, press the <INC> soft key
to advance the display to OB Slave L1.
NOTE: There are no <OK> or <DONE> commands in the stacking menu. Whichever value—Master
or Slave — shows up on the MATE screen will be assigned to the chosen Port (and FX) upon leaving
that screen. It’s important to watch the Port number in the top right corner of each screen to be sure
you’ve assigned it the desired status.
ADV/FX/STACK---------P03
stack OB Slave L1
phase
DOWN INC DEC PORT

13
THREEPHASE SLAVE
• Make sure the two slave inverters are connected to Ports 02 and 03 of the HUB. The inverter on HUB
Port 2 is considered phase B. The inverter on HUB Port 3 is considered phase C.
ADV/FX/STACK----------P01
stack Master
phase
DOWN INC DEC PORT
• From the Master screen, press the <PORT> soft key
until P02 appears.
ADV/FX/STACK-----------P02
stack Master
phase
DOWN INC DEC PORT
• Each new Port screen in the stacking menu will
open with Master displayed. To change the stacking
designation, press the <INC> soft key until 3p Classic
B appears.
ADV/FX/STACK----------P02
stack 3p Classic B
phase
DOWN INC DEC PORT
• After establishing P02 as a 3p Classic B, press the
<PORT> soft key to switch to P03.
ADV/FX/STACK----------P03
stack Master
phase
DOWN INC DEC PORT
• As before, P03 will open with Master displayed.
Press the <INC> soft key until 3p Classic C appears.
ADV/FX/STACK----------P03
stack 3p Classic C
phase
DOWN INC DEC PORT
• Press the <DOWN> soft key when nished. This will
allow you to observe the power save levels, or exit
the menu.

14
POWER SAVE LEVELS
In grid-interactive models, the power save levels aect the selling and charging functions. The master
inverter is set at the lowest power save level, which means it always acts rst. The slaves should be set
at higher levels, causing them to assist the master as necessary when selling power or charging.
ADV/FX/STACK------------P01
(ANY SCREEN IN STACK PHASE)
DOWN INC DEC PORT
ADV/FX/STACK-----------P01
power save level 0
master adjust only
DOWN INC DEC PORT
• Press the <DOWN> soft key once to view the power
save level master adjust only screen.
• The master setting is defaulted at 0. This should not
be changed. Press the <DOWN> soft key to view
the power save level slave adjust only screen. Next,
press the <PORT> soft key to view the slave inverter,
P02 (and other ports if present).
ADV/FX/STACK---------P02
power save level 2
slave adjust only
DOWN INC DEC PORT
• Press the <INC> soft key to change the power save
level for the slave inverters. P02 should be set to
level 1. If P03 is present, repeat these steps and set
it to 2. Other ports should be set at progressively
higher levels. (If you have dierent priorities for the
inverters’behavior, other settings are possible.)
ADV/FX/SELL-----------P01
grid tie USER
window
DOWN IEEE USER PORT
ADV/FX/SELL-----------P01
sell re 26.0 vdc
volts
DOWN INC DEC PORT
SELL SETTINGS Two settings in the SELL menu are signicant.
• “sell re volts” stands for the voltage level at which the
inverter/charger sells renewable energy (RE) back to
the grid. This setting is recommended to be lower
than the settings for your renewable energy source,
but high enough to maintain the battery suciently.
• “grid tie window” sets the acceptable frequency and
voltage for selling to the grid. (The FX stops selling
if the grid exceeds these ranges.) The USER option
has a settable voltage range, to accommodate grid
quality. The IEEE option has a xed range of voltage.
• Both options have a xed frequency window,
though the IEEE option is narrower (49-51 Hz) than
the User option (48-52 Hz).

15
• With the programming completed,
turn the AC output breakers ON with
the AC BYPASS on the AC breaker
panel switched to NORMAL.
Verify the AC voltage output through the MATE following path:
PATH
MAIN------- STATUS------------ STATUS/FX/PAGE1---------- Invert Bulk P00 STATUS/FX/METER--P00
12.15:30p choose device: choose category: inv 0.0kw zer 0.0kw output 230 vac
chg 0.0kw buy 0.0kw voltage
SUM STATUS SETUP ADV FX CC DC MAIN MODES METER BATT PG2 DOWN STATUS PORT DOWN UP TOP PORT
BYPASS OUTPUT INPUT
TURNING AC ON

16
If the FX’s AC source is available, the yellow AC IN
STATUS light will blink. The FX will connect to the
utility grid when the voltage is within 140-280 Vac and
the frequency between 44-56 Hz. After a brief delay
(which varies with AC source and settings), the AC IN
light should stop blinking and stay lit.
• Turn the AC input breakers ON.
BYPASS OUTPUT INPUT

17
AUXILIARY AUX FUNCTIONS
The AUX output provides a 12 Vdc, 0.7 Adc max output at the AUX terminals to control DC loads, or
AC external loads, if a DC-controlled relay is used. Typical loads include sending a fault alarm signal or
running a small fan to cool the FX.
ADV/SETTINGS/WARNING
changes made could
adversely aect
system performance
MAIN--------------------------
12:12:16A
SUM STATUS SETUP ADV
• From the Main screen, press the <ADV> soft key.
NOTE: Pressing and holding the two left-hand soft
keys at the same time will always bring up the Main
screen.
• Push any soft key on the ADV/SETTINGS/WARNING
screen and go to the ADV/PASSWORD screen.

18
• The screen displays <132>. Press the <INC> button
until it scrolls to the password 141.
ADV/PASSWORD--------------
enter the password
132
ENTER INC DEC EXIT
ADV/PASSWORD----------------
enter the password
141
ENTER INC DEC EXIT
ADV------------------------------
choose device:
FX CC DC MATE
ADV/FX/PAGE 1----------------
choose category:
ADV INV CHGR PG2
• On the ADV/FX/PAGE 1 screen, press the <PG2>
soft key and go to the ADV/FX/PAGE2 screen.
• In the ADV menu, press the <FX> soft key.
• Push the <ENTER> soft key.