42,0426,0071,EA
Fronius IG Plus
3.0-1 / 3.8-1 / 5.0-1 / 6.0-1 / 7.5-1
10.0-1 / 11.4-1 / 11.4-3 / 12.0-3
42,0426,0071,EA
01/2010
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Operating Instructions
Inverter for grid-connected photovoltaic systems
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Introduction
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Dear reader,
Thank you for the trust you have placed in our company and congratulations on buying this
high-quality Fronius product. These instructions will help you familiarize yourself with the
product. Reading the instructions carefully will enable you to learn about the many different
features it has to offer. This will allow you to make full use of its advantages.
Please also note the safety rules to ensure greater safety when using the product. Careful
handling of the product will repay you with years of safe and reliable operation. These are
essential prerequisites for excellent results.
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General
These operating instructions contain important instructions for the Fronius IG Plus that
must be followed during installation and maintenance of the inverter.
The Fronius IG Plus is designed and tested according to international safety requirements,
but as with all electrical and electronic equipment, certain precautions must be observed
when installing and/or operating the Fronius IG Plus.
To reduce the risk of personal injury and to ensure the safe installation and operation of
the Fronius IG Plus, you must carefully read and follow all instructions and safety instructions in these operating instructions.
Safety instructions
The following section "Safety instructions" contains various warnings. A Warning describes
a hazard to equipment or personnel. It calls attention to a procedure or practice, which, if
not correctly performed or adhered to, could result in damage to or destruction of part or
all of the Fronius inverter and/or other equipment connected to the Fronius inverter or personal injury.
Electrical installations
All electrical installations must be carried out in accordance with the National Electrical
Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation
site.
For installations in Canada, the installations must be done in accordance with applicable
Canadian standards.
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IMPORTANT SAFETY
INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Safety rules
Safety Rules Explanation
DANGER! Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING! Indicates a potentially hazardous situation which, if not avoided, will
result in death or serious injury.
CAUTION! Indicates a potentially harmful situation which, if not avoided, may result in minor and moderate injury or property damage.
NOTE! Indicates a risk of flawed results and possible damage to the equipment.
IMPORTANT! Indicates tips for correct operation and other particularly useful information.
It does not indicate a potentially damaging or dangerous situation.
If you see any of the symbols depicted in the "Safety rules," special care is required.
General
The device is manufactured using state-of-the-art technology and according
to recognized safety standards. If used incorrectly or misused, however, it can
cause
injury or death to the operator or a third party,
damage to the device and other material assets belonging to the operator,
inefficient operation of the device
All persons involved in commissioning, maintaining and servicing the device
must
be suitably qualified,
have knowledge of and experience in dealing with electrical installations
and
read and follow these operating instructions carefully
The operating instructions must always be at hand wherever the device is being used. In addition to the operating instructions, attention must also be paid
to any generally applicable and local regulations regarding accident prevention and environmental protection.
All safety and danger notices on the device
must be kept in a legible state
must not be damaged/marked
must not be removed
must not be covered, pasted or painted over
For the location of the safety and danger notices on the device, refer to the
section headed "General" in the operating instructions for the device.
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Your personal safety is at stake!
Utilization in Accordance with
"Intended Purpose"
The device is to be used exclusively for its intended purpose.
Utilization for any other purpose, or in any other manner, shall be deemed to
be "not in accordance with the intended purpose." The manufacturer shall not
be liable for any damage resulting from such improper use.
Utilization in accordance with the "intended purpose" also includes
carefully reading and obeying all the instructions and all the safety and
danger notices in the operating instructions
performing all stipulated inspection and servicing work
installation as specified in the operating instructions
The following guidelines should also be applied where relevant:
Regulations of the power supply company regarding energy fed into the
grid
Instructions from the solar module manufacturer
Environmental
Conditions
Operation or storage of the device outside the stipulated area will be deemed
as "not in accordance with the intended purpose." The manufacturer is not responsible for any damages resulting from unintended use.
For exact information on permitted environmental conditions, please refer to
the "Technical data" in the operating instructions.
Qualified Service
Engineers
The servicing information contained in these operating instructions is intended
only for the use of qualified service engineers. An electric shock can be fatal.
Do not perform any actions other than those described in the documentation.
This also applies to those who may be qualified.
All cables and leads must be secured, undamaged, insulated and adequately
dimensioned. Loose connections, scorched, damaged or inadequately dimensioned cables and leads must be immediately repaired by authorized personnel.
Maintenance and repair work must only be carried out by authorized personnel.
It is impossible to guarantee that externally procured parts are designed and
manufactured to meet the demands made on them, or that they satisfy safety
requirements. Use only original replacement parts (also applies to standard
parts).
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Before switching on the device, remove any faults that could compromise
safety.
Do not carry out any modifications, alterations, etc. without the manufacturer's
consent.
Components that are not in perfect condition must be changed immediately.
Safety Measures
at the Installation
Location
Data Regarding
Noise Emission
Values
When installing devices with openings for cooling air, ensure that the cooling air can enter
and exit unhindered through the vents. Only operate the device in accordance with the degree of protection shown on the rating plate.
The inverter generates a maximum sound power level of < 80 dB(A) (ref. 1
pW) when operating under full load in accordance with IEC 62109-1.
The device is cooled as quietly as possible with the aid of an electronic temperature control system, and depends on the amount of converted power, the
ambient temperature, the level of soiling of the device, etc.
It is not possible to provide a workplace-related emission value for this device,
because the actual sound pressure level is heavily influenced by the installation situation, the power quality, the surrounding walls and the properties of
the room in general.
EMC device classifications
Devices with emission class A:
are only designed for use in an industrial setting
can cause line-bound and radiated interference in other areas
Devices with emission class B:
satisfy the emissions criteria for residential and industrial areas. This is
also true for residential areas in which the energy is supplied from the
public low voltage grid.
EMC device classification as per the rating plate or technical data.
EMC Measures
In certain cases, even though a device complies with the standard limit values
for emissions, it may affect the application area for which it was designed (e.g.,
when there is sensitive equipment at the same location, or if the site where the
device is installed is close to either radio or television receivers). If this is the
case, then the operator is obliged to take appropriate action to rectify the situation.
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High-performance devices (> 16 A) can affect the voltage quality of the grid
because of a high output current in the main supply.
This may affect a number of types of device in terms of:
connection restrictions
criteria with regard to maximum permissible mains impedance *)
criteria with regard to minimum short-circuit power requirement *)
*) at the interface with the public grid
see Technical Data
In this case, the operator or the person using the device should check whether
or not the device is allowed to be connected, where appropriate through discussion with the power supply company.
Electrical Installations
Protective Measures against
ESD
Safety Measures
in Normal Operation
Electrical installations must only be carried out according to relevant national
and local standards and regulations.
Danger of damage to electrical components from electrical discharge. Suitable
measures should be taken to protect against ESD when replacing and installing components.
Only operate the device when all protection devices are fully functional. If the
protection devices are not fully functional, there is a risk of
injury or death to the operator or a third party,
damage to the device and other material assets belonging to the operator,
inefficient operation of the device
Any safety devices that are not functioning properly must be repaired by authorized personnel before the device is switched on.
Never bypass or disable protection devices.
Safety Symbols
Devices with the CE marking satisfy the essential requirements of the low-voltage and electromagnetic compatibility directives. (Further details can be found
in the appendix or the chapter entitled "Technical data" in your documentation.)
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Grid Connection
Disposal
Backup
Copyright
Do not dispose of this device with normal domestic waste! To comply with the
European Directive 2002/96/EC on Waste Electrical and Electronic Equipment and its implementation as national law, electrical equipment that has
reached the end of its life must be collected separately and returned to an approved recycling facility. Any device that you no longer require must be returned to your dealer, or you must locate the approved collection and recycling
facilities in your area. Ignoring this European Directive may have potentially
adverse affects on the environment and your health!
The user is responsible for backing up any changes made to the factory settings. The manufacturer accepts no liability for any deleted personal settings.
Copyright of these operating instructions remains with the manufacturer.
Text and illustrations are technically correct at the time of going to print. The
right to make modifications is reserved. The contents of the operating instructions shall not provide the basis for any claims whatsoever on the part of the
purchaser. If you have any suggestions for improvement, or can point out any
mistakes that you have found in the operating instructions, we will be most
grateful for your comments.
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Contents
General Information
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Protection of Persons and Equipment .......................................................................................................
Safety....................................................................................................................................................
Protection of Persons and Equipment ..................................................................................................
Galvanic isolation..................................................................................................................................
Monitoring the Grid ...............................................................................................................................
Information on "field adjustable trip points"...........................................................................................
FCC compliance ...................................................................................................................................
Ground fault detector / interrupter.........................................................................................................
Standards and regulations ....................................................................................................................
Declaration of conformity ......................................................................................................................
The Fronius IG Plus Unit in the PV System ...............................................................................................
General .................................................................................................................................................
Tasks ....................................................................................................................................................
Converting DC to AC Current ...............................................................................................................
Fully Automatic Operational Management............................................................................................
Display function and data communication ............................................................................................
System upgrade....................................................................................................................................
Forced Ventilation .................................................................................................................................
Power Derating .....................................................................................................................................
Installation and Startup
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Fronius IG Plus Installation and Connection ..............................................................................................
Safety....................................................................................................................................................
Fronius IG Plus Construction ................................................................................................................
Connection diagram..............................................................................................................................
Overview ...............................................................................................................................................
Fronius IG Plus Connection Options..........................................................................................................
Fronius IG Plus Connection Options.....................................................................................................
Knockouts on the Fronius IG Plus .............................................................................................................
General .................................................................................................................................................
Knockouts for wire inputs......................................................................................................................
Choosing the Location ...............................................................................................................................
Choosing the location in general...........................................................................................................
Choosing a Location for Inside Installation ...........................................................................................
Choosing a location for outdoor installation ..........................................................................................
Fronius IG Plus Installation ........................................................................................................................
General ................................................................................................................................................
Assembling the wall bracket .................................................................................................................
Recommended screws for wall bracket assembly ................................................................................
Attaching the wall bracket - mounting height ........................................................................................
Attaching the wall bracket to a concrete or brick wall ...........................................................................
Attaching the wall bracket to a wooden wall .........................................................................................
Attaching the wall bracket to a metal carrier .........................................................................................
Fronius IG Plus installation ...................................................................................................................
Installation of several inverters .............................................................................................................
Connecting the Fronius IG Plus to the Public Grid (AC) ............................................................................
Overview of available grids ...................................................................................................................
Monitoring the Grid ...............................................................................................................................
Systems with more than one inverter....................................................................................................
AC-side terminals and grounding terminals ..........................................................................................
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Cross section of AC wires.....................................................................................................................
Safety....................................................................................................................................................
Connecting the Fronius IG Plus to the public grid (AC) ........................................................................
Connecting grounding electrode wire ...................................................................................................
Recommendation for the AC-side overcurrent protection.....................................................................
Additional external AC and/or DC disconnect.......................................................................................
Connecting Solar Module Strings to the Fronius IG Plus (DC) ..................................................................
General information about solar modules .............................................................................................
Safety....................................................................................................................................................
DC terminals .........................................................................................................................................
Polarity Reversal of Solar Module Strings ............................................................................................
Overview ...............................................................................................................................................
Connecting solar module strings................................................................................................................
Solar module ground.............................................................................................................................
Wire cross section of solar module strings ...........................................................................................
Connecting solar module strings...........................................................................................................
Inserting string fuses.............................................................................................................................
Criteria for the Proper Selection of String Fuses .......................................................................................
DC disconnect requirements.................................................................................................................
General .................................................................................................................................................
Criteria for the proper selection of string fuses .....................................................................................
Effects of Using Underrated Fuses .......................................................................................................
Fuse Recommendations .......................................................................................................................
Application example..............................................................................................................................
Fuses ....................................................................................................................................................
Connecting combined solar module strings using connecting distributors ................................................
General .................................................................................................................................................
Additional components required ...........................................................................................................
Solar module ground.............................................................................................................................
Safety....................................................................................................................................................
Connecting combined solar module strings using connecting distributors ...........................................
Solar Module Ground at Positive Pole: Connecting Solar Module Strings ................................................
General .................................................................................................................................................
Solar module ground at positive pole....................................................................................................
Wire cross section of solar module strings ...........................................................................................
Solar module ground at positive pole: Connecting solar module strings ..............................................
Inserting string fuses.............................................................................................................................
Criteria for the Proper Selection of String Fuses .......................................................................................
DC disconnect requirements.................................................................................................................
General .................................................................................................................................................
Criteria for the proper selection of string fuses .....................................................................................
Effects of Using Underrated Fuses .......................................................................................................
Fuse Recommendations .......................................................................................................................
Application example..............................................................................................................................
Fuses ....................................................................................................................................................
Solar module ground at positive pole: Connecting combined solar module strings using connecting distributors ......................................................................................................................................................
General .................................................................................................................................................
Additional components required ...........................................................................................................
Solar module ground at positive pole....................................................................................................
Safety....................................................................................................................................................
Solar module ground at positive pole: Connecting combined solar module strings using connecting
distributors ............................................................................................................................................
Attaching power stage sets and closing the Fronius IG Plus .....................................................................
Preparation ...........................................................................................................................................
Attaching power stage sets and closing the Fronius IG Plus................................................................
Opening Fronius IG Plus for service/maintenance ...............................................................................
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Operation
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Product Description Fronius IG Plus..........................................................................................................
Controls and Indicators .........................................................................................................................
Display ..................................................................................................................................................
Operating Status LED ...........................................................................................................................
Startup Phase and Grid Feed-in Mode ......................................................................................................
Startup phase........................................................................................................................................
Test procedure......................................................................................................................................
Operation of Feeding Energy into the Grid ...........................................................................................
Navigation in the Menu Level.....................................................................................................................
Activating Display Illumination ..............................................................................................................
Accessing the Menu Level ....................................................................................................................
The Display Modes ....................................................................................................................................
The Display Modes ...............................................................................................................................
Selecting a Display Mode .....................................................................................................................
Overview of Display Values ..................................................................................................................
Display Values in "Now" Display Mode ......................................................................................................
Selecting the "Now" Display Mode........................................................................................................
Display values in the ‘Now’ display mode .............................................................................................
Options..................................................................................................................................................
Display Values in "Day / Year / Total" Display Modes ...............................................................................
General .................................................................................................................................................
Selecting "Day / Year / Total" Display Mode.........................................................................................
Display values in the ‘Day / Year / Total’ display modes ......................................................................
Options..................................................................................................................................................
The Setup Menu ........................................................................................................................................
Presetting..............................................................................................................................................
Accessing the Setup Menu ...................................................................................................................
Scrolling through Menu Items ...............................................................................................................
Menu Items in the Setup Menu ..................................................................................................................
STANDBY .............................................................................................................................................
CONTRAST ..........................................................................................................................................
LIGHT MODE........................................................................................................................................
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Commissioning ..........................................................................................................................................
Factory pre-set configuration ................................................................................................................
Requirements for start-up operation .....................................................................................................
Start-up operation .................................................................................................................................
Selecting the grid ..................................................................................................................................
Startup phase during startup operation.................................................................................................
Setting inverter for solar module ground at the positive pole................................................................
Inserting Option Cards ...............................................................................................................................
Suitable option cards ............................................................................................................................
Safety....................................................................................................................................................
Opening the inverter .............................................................................................................................
Inserting option cards............................................................................................................................
Connecting option cards, laying data communication wires .................................................................
Closing the inverter ...............................................................................................................................
Data Communication and Solar Net ..........................................................................................................
Solar Net and data interface .................................................................................................................
Example ................................................................................................................................................
Selecting the interface protocol and setting the inverter baud rate ............................................................
General .................................................................................................................................................
Entering the access code......................................................................................................................
Selecting the interface protocol for communication with other data communication components........
Setting the inverter baud rate................................................................................................................
CASH ....................................................................................................................................................
CO2.......................................................................................................................................................
YIELD....................................................................................................................................................
IG no. ....................................................................................................................................................
DAT COM .............................................................................................................................................
TIME .....................................................................................................................................................
STATE PS.............................................................................................................................................
VERSION..............................................................................................................................................
Setting and Displaying Menu Items ...........................................................................................................
Setting Menu Items - General ...............................................................................................................
Examples of Setting and Displaying Menu Items..................................................................................
Setting the currency and rate................................................................................................................
Displaying and Setting Parameters in the "DATCOM" Menu Item........................................................
Setting Time and Date .........................................................................................................................
Troubleshooting and Maintenance
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Status Diagnosis and Troubleshooting ......................................................................................................
Displaying Status Codes.......................................................................................................................
Normal Operation Status Codes ...........................................................................................................
Total Failure ..........................................................................................................................................
Status Codes on Fronius IG Plus with Several Power Stage Sets .......................................................
Class 1 Status Codes ...........................................................................................................................
Class 2 Status Codes ...........................................................................................................................
Class 3 Status Codes ...........................................................................................................................
Class 4 status codes.............................................................................................................................
Class 5 status codes.............................................................................................................................
Customer Service .................................................................................................................................
Maintenance ..............................................................................................................................................
Safety....................................................................................................................................................
General .................................................................................................................................................
Operation in Dusty Environments .........................................................................................................
Opening Fronius IG Plus for service/maintenance ...............................................................................
Replacing String Fuses..............................................................................................................................
Safety....................................................................................................................................................
Preparation ..........................................................................................................................................
Replacing string fuses...........................................................................................................................
Closing Fronius IG Plus ........................................................................................................................
Replacing GFDI fuse..................................................................................................................................
Safety....................................................................................................................................................
Preparation ...........................................................................................................................................
Replacing GFDI fuse.............................................................................................................................
Closing Fronius IG Plus ........................................................................................................................
Appendix
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Technical Data ...........................................................................................................................................
Fronius IG Plus 3.0-1 ............................................................................................................................
Fronius IG Plus 3.8-1 ............................................................................................................................
Fronius IG Plus 5.0-1 ............................................................................................................................
Fronius IG Plus 6.0-1 ............................................................................................................................
Fronius IG Plus 7.5-1 ............................................................................................................................
Fronius IG Plus 10.0-1 ..........................................................................................................................
Fronius IG Plus 11.4-1 ..........................................................................................................................
Fronius IG Plus 11.4-3 ..........................................................................................................................
Fronius IG Plus 12.0-3 ..........................................................................................................................
Field adjustable trip points ....................................................................................................................
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Relevant Standards and Directives............................................................................................................
Relevant standards and directives........................................................................................................
Grid Failure ...........................................................................................................................................
Warranty and Disposal...............................................................................................................................
FRONIUS USA limited 10-year warranty ..............................................................................................
Policy and procedure for warranty returns and repairs .........................................................................
Disposal ................................................................................................................................................
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General Information
Safety
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
WARNING! If the equipment is used or tasks are carried out incorrectly, serious
injury or damage may result. Only qualified personnel are authorized to install
your inverter and only within the scope of the respective technical regulations. It
is essential that you read the "Safety regulations" chapter before commissioning
the equipment or carrying out maintenance work.
Protection of Persons and Equipment
The design and function of the inverter offer a maximum level of safety, both during installation as well as operation.
The inverter provides operator and equipment protection through:
a) galvanic isolation
b) monitoring the grid
Galvanic isolation
The inverter is equipped with a high frequency transformer that ensures galvanic isolation
between the DC side and the grid, thus ensuring the highest possible safety.
Monitoring the
Grid
Whenever conditions in the electric grid are inconsistent with standard conditions (for example, grid switch-off, interruption), the inverter will immediately stop operating and interrupt the supply of power into the grid.
Grid monitoring is carried out using:
Voltage monitoring
Frequency monitoring
Monitoring islanding conditions
Information on
"field adjustable
trip points"
The inverter is equipped with field adjustable trip points. For further information, please
contact Fronius technical support at the following e-mail address: [email protected]
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Protection of Persons and Equipment
FCC compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
Ground fault detector / interrupter
The inverter is equipped with a ground fault detection and interruption (GFDI) circuit as required by UL 1741 and the National Electrical code.
Depending on the system configuration either the PV array’s negative or positive conductor
is connected to the grounding system in the inverter. If a ground fault occurs in the DC wiring, the inverter disconnects from the grid.
Standards and
regulations
Your inverter complies with the requirements for the following standards "Inverters, converters and controllers for use in independent power systems":
UL1741-2005
IEEE 1547-2003
IEEE 1547.1
ANSI / IEEE C62.41
C22.2 No. 107.1-01 (Sep. 2001)
The ground-fault detection and interruption is in compliance with NEC 690 building code
requirements.
Declaration of
conformity
Relevant declarations of conformity can be found in the appendix to these operating instructions.
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General
The solar inverter is the highly complex link between the solar modules and the public grid.
Inverter
Main AC
Load
Center
PV array
Energymeter
Tasks
The main tasks of the inverter include:
Converting DC to AC current
Fully automatic operational management
Display function and data communication
Converting DC to
AC Current
The inverter transforms the direct current generated by the solar modules into alternating
current. This alternating current is fed into your home system or into the public grid and
synchronized with the voltage that is used there.
IMPORTANT! The inverter has been designed exclusively for use in grid-connected photovoltaic systems. It cannot generate electric power independently of the grid.
Fully Automatic
Operational Management
The inverter is fully automatic. Starting at sunrise, as soon as the solar modules generate
enough power, the automatic control unit starts monitoring voltage and frequency. As soon
as there is a sufficient level of irradiance, your solar inverter starts feeding energy to the
grid.
The inverter control system ensures that the maximum possible power output is drawn
from the solar modules at all times.
This function is called MPPT (Maximum Power Point Tracking).
As dusk starts and there is no longer sufficient energy available to feed power into the grid,
the inverter unit shuts down the grid connection completely and stops operating. All settings and recorded data are saved.
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The Fronius IG Plus Unit in the PV System
Display function
and data communication
The display on the inverter is the interface between the inverter and the operator. The design of the display is geared towards simple operation and making system data available
as long as the inverter operates.
The inverter is equipped with a basic logging function to monitor minimum and maximum
data on a daily and a cumulative basis. These values are shown on the display.
A wide range of data communication products allows for many possibilities of recording
and viewing data.
System upgrade
The inverter is designed for various system upgrades, e.g.:
Upgrades that enable the inverter to communicate with external system upgrades as
well as other inverters
Datalogger and modem interface as well as an Ethernet/Internet connection (for using
a PC to record and manage data from your photovoltaic system)
Various large-format displays
Fronius Personal Display
Actuators (e.g.: relays, alarms)
Interface cards
System upgrades are available as plug-in cards.
Forced Ventilation
The inverter's temperature-controlled, variable-speed fan with ball-bearing support provides:
optimal inverter cooling
efficiency increases
cooler components, thus improving service life
least possible energy consumption and lowest possible noise level
weight reduction due to a reduction of the cooling element surface
Power Derating
Should there be insufficient heat dissipation in spite of the fan operating at maximum speed
(for example, inadequate heat transfer away from the heat sinks), the power will be derated
to protect the inverter when the ambient temperature reaches 40 °C and above.
Derating the power reduces the output of the inverter for a short period sufficient to ensure
that the temperature will not exceed the permissible limit.
Your inverter will remain ready for operation as long as possible without any interruption.
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Installation and Startup
Safety
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
WARNING! If the equipment is used or tasks are carried out incorrectly, serious
injury or damage may result. Only qualified personnel are authorized to install
your inverter and only within the scope of the respective technical regulations. It
is essential that you read the "Safety regulations" chapter before commissioning
the equipment or carrying out maintenance work.
Fronius IG Plus
Construction
The power stage set and the connection
area are separated from each other for delivery.
(1)
(2)
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(1)
Power stage set(s)
(2)
Connection area
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Fronius IG Plus Installation and Connection
Connection diagram
DC +
Fronius IG Plus
DC terminal block
String fuses
L3***
L2
L1
N**
DC disconnect
Grounding terminal
Grounding electrode terminal *
DC PV frame ground
N
L1
L2
L3
Energymeter
AC distribution
panel
Lockable AC
disconnect
switch
Main grounding system
Overview
*
may be required by local authorities
**
may be required depending on grid configuration
***
depending on inverter type
‘Fronius IG Plus installation and connection’ contains the following sections:
Fronius IG Plus connection options
Knockouts on the Fronius IG Plus
Choosing the location
Fronius IG Plus installation
Connecting the Fronius IG Plus to the public grid (AC)
Connecting solar module strings to the Fronius IG Plus (DC)
Attaching power stage sets and closing the Fronius IG Plus
24
Fronius IG Plus
Connection Options
( 1 )(2) (3)
u
Fronius IG Plus Connection Options
(4) (5) (6) ( 7 )
(8)
(9)
(10)
(16)
(15) (14)
(13)
(12)
(11)
Item
Description
(1)
Jumper slot SMON
(2)
DC+ main switch wire
(3)
6 x fuse holder with fuse cover, for stringfuses
(4)
Jumper slot SMOFF
(5)
Plug-in card IG Brain
(6)
Open card slot for an option card
(7)
Open card slot for an option card
(8)
Plug-in card NL-MON
Only at Fronius IG Plus 12.0-3 WYE 277: Open card slot for an option card
(9)
DC- main switch wire
(10)
6 DC- terminals
(11)
fuse holder with fuse cover, for GFDI-fuse
(12)
AC-side terminals
(13)
3 x grounding terminals
(14)
Strain relief for solar module strings
(15)
6 DC+ terminals
(16)
DC main switch
25
Knockouts on the Fronius IG Plus
General
Knockouts for
wire inputs
The inverter contains several knockouts of different sizes. When knocked out, the openings are used for the inputs of various wires.
Knockouts on the left-hand side
Knockouts on the right-hand side
(1)
(1)
(3) (2)
(2) (3)
Knockouts on the underside
(6)
(5) (1) (4)
Knockouts on the backside
(2)
(3)
Item
Description
(1)
Knockout, diameter 3/4 in. / 1 in.
e.g., for DC wire, surge arrester
(2)
Knockout, diameter 1/2 in. / 3/4 in.
only for data wires
(3)
Knockout, diameter 3/4 in. / 1 in.
e.g., for AC wire, surge arrester
(4)
Knockout, diameter 1/2 in. / 3/4 in.
e.g., for AC wire, surge arrester
26
(1) (5) (7)
(3) (4)
Description
(5)
Knockout, diameter 1/2 in. / 3/4 in.
e.g., for DC wire, surge arrester
(6)
FTX 25 fixing screws
(7)
FTX 25 fixing screw
NOTE! When using back wire inputs:
seal enclosure as per NEMA 3R before outside operation
NOTE!
The larger knockouts should only be removed from the outside in.
The smaller knockouts should be removed from the inside out.
Only remove the number of knockouts required for the available wire inputs.
CAUTION! Danger of damaging the plastic base when removing the knockouts
on the bottom.
Before removing, remove the 3 fixing screws (6) and (7)
Remove the metal insert from the plastic base
Remove the required knockouts
Replace the metal insert into the plastic base
Secure the metal insert using the 3 fixing screws (6) and (7)
27
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Item
Choosing the Location
Choosing the location in general
Please note the following criteria when choosing a location for the inverter:
Only vertical installation
Max. ambient temperatures: -4 °F / +122 °F (-20 °C / +50 °C)
Relative humidity: 0 - 95 %
For use at altitudes above sea level: up to 6561 ft. (2000 m)
-
-
Keep a minimum distance of 8 in. (20 cm) between each inverter or anything to the
right or left of the inverters such as walls or DC and AC disconnects.
For optimal airflow and cooling efficiency in hot climates, the manufacturer recommend a distance of 10 - 12 in. (25 - 30 cm).
When installing more than one inverter, keep a distance of 12 in. (30 cm) between
each inverter.
2i
n
5c .
m
8
20 in.
cm
12
30 in.
cm
Keep a minimum distance under the inverter corresponding to the ‘NEC 110.26 for code
compliant disconnect location.’
The air flow direction within the inverter is from right to left (cold air intake on right, hot air
exit on left).
When installing the inverter in a switch panel cabinet (or similar closed environment), it is
necessary to make sure that the hot air that develops will be discharged by forced ventilation.
The inverter is designed for installation both indoors and outdoors.
Choosing a Location for Inside Installation
During certain operation phases the inverter may produce a slight noise. For this reason
it should not be installed in an occupied living area.
28
Choosing a location for outdoor
installation
NEMA 3R protection means that the inverter is not susceptible to water spray from any
direction.
However, the manufacturer recommends, if possible, that the inverter not be exposed to
direct moisture or to a direct water jet (e.g., from sprinklers).
In order to protect the display, the inverter should not be exposed to direct sunlight. Ideally, the inverter should be installed in a protected location, e.g., near the solar modules
or under a roof overhang.
29
u
Do not install the inverter in:
areas with large amounts of dust
areas with large amounts of conducting dust particles (e.g., iron filings)
areas with corrosive gases, acids or salts
areas where there is an increased risk of accidents, e.g., from farm animals (horses,
cattle, sheep, pigs, etc.)
stables or adjoining areas
storage areas for hay, straw, chaff, animal feed, fertilizers, etc.
storage or processing areas for fruit, vegetables or winegrowing products
areas used in the preparation of grain, green fodder or animal feeds
greenhouses
Fronius IG Plus Installation
General
IMPORTANT! Depending on the surface, different dowels and screws may be required for
installing the wall bracket. These dowels and screws are not part of the scope of delivery
for the inverter. The installer is responsible for selecting the proper dowels and screws.
NOTE! The inverter is designed only for a vertical installation position.
Assembling the
wall bracket
Only for Fronius IG Plus 10.0-1 / 11.4-1 / 11.4-3 / 12.0-3:
Because of logistical limits, the wall bracket for these inverters is divided into two
parts.
Assemble wall bracket as per step 1
1
"click"
1
1
Recommended
screws for wall
bracket assembly
In most cases, you should use 1/4 in. or 5/16 in. stainless steel or aluminum screws capable of supporting 31 lbs. (Fronius IG Plus 3.0-1 / 3.8-1), 57 lbs. (Fronius IG Plus 5.0-1 / 6.01 / 7.5-1), or 82 lbs. (Fronius IG Plus 10.0-1 / 11.4-3 / 12.0-3) of inverter weight.
Attaching the wall
bracket - mounting height
IMPORTANT! The NEC requires that the DC disconnect be mounted between 3 ft. and 6
1/2 ft. from the ground if it is to be used as a code-compliant disconnect. The DC disconnect is in the lower left part of the inverter. Also, the cut out segment marked (*) in the following drawings represents the placement of the inverter display. Use this to ensure a
comfortable display height for easy reading.
Attaching the wall
bracket to a concrete or brick wall
IMPORTANT! The cut out segment marked (*) represents the placement of the inverter
display. Use this to ensure a comfortable display height for easy reading.
30
2
min. 50 mm
min. 2 in.
u
1
1
1
1
2
3
2
3
4
5
6
4
5
(*)
7
6
3
6x 1
2
23
4
5
6
7
Attaching the wall
bracket to a
wooden wall
IMPORTANT! The cut out segment marked (*) represents the placement of the inverter
display. Use this to ensure a comfortable display height for easy reading.
1
2
1
1
1
2
9
9
2
3
(*)
4
31
5
Attaching the wall
bracket to a metal
carrier
IMPORTANT! The cut out segment marked (*) represents the placement of the inverter
display. Use this to ensure a comfortable display height for easy reading.
NOTE! When installing using a
metal carrier, the inverter should
not be exposed to rainwater or
water spray at the back. Ensure proper
rainwater or spray water protection.
1
4x
1
2
(*)
3
4
Fronius IG Plus
installation
1
2
2
1
A
2
B
1
3
4
8
4
7
1
1
2
*)
2 3
Remove all fixing screws from any available option cards.
32
6
5
*)
5
6
2
1
Installation of
several inverters
Several inverters can be easily installed and connected next to each other using the side
knockouts on the inverter, e.g.:
DC
DATCOM
DC
DATCOM
DC
AC
AC
DATCOM = data communication
NOTE! All electrical installations must be carried out in accordance with the National Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with applicable Canadian standards.
33
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CAUTION! Danger of injury by falling equipment. Attach the connection area of
the inverter to the wall bracket using the 2 screws removed from the wall bracket
in step 1.
Connecting the Fronius IG Plus to the Public Grid
(AC)
Inverters can be connected to the following grids:
Grid
Inverter
208 V Delta
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
Fronius IG Plus 11.4-3
L1
V
=
V
20
8
°
12
0
°
0
12
8
20
=
~
~
L3
L2
208 V
120 °
=
~
208 V Delta: 120 V WYE
~
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
Fronius IG Plus 11.4-3
~
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
Fronius IG Plus 11.4-3
L1
120 V
8V
20
0V
12
0V
12
L3
°
12
0
°
0
12
N
~
=
8V
20
=
L2
208 V
120 °
=
~
240 V Delta
L1
~
L3
=
V
24
0
°
V
°
0
12
=
0
24
12
0
Overview of available grids
240 V
L2
120 °
=
~
34
Inverter
240 V: 120 V Stinger
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
L3
V
V
24
0
=
°
12
0
°
0
12
0
24
=
~
~
N
L2
120 V
120 V
L1
120 °
=
~
240 V: 120 V Split phase
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
180 °
N
120 V
L1
120 V
L2
240 V
=
~
480 V Delta: 277 V WYE
Fronius IG Plus 3.0-1
Fronius IG Plus 3.8-1
Fronius IG Plus 5.0-1
Fronius IG Plus 6.0-1
Fronius IG Plus 7.5-1
Fronius IG Plus 10.0-1
Fronius IG Plus 11.4-1
L1
277 V
48
0V
N
~
7
27
L3
V
27
7
°
12
0
°
0
12
0V
48
=
~
Fronius IG Plus 12.0-3
V
L2
480 V
=
120 °
=
~
35
u
Grid
Grid
Inverter
480 V Delta
NOTE! Do not connect Fronius IG Plus inverters to the
480 V Delta grid.
L1
V
=
V
48
0
°
12
0
°
0
12
0
48
=
~
~
L3
480 V
L2
120 °
=
~
Monitoring the
Grid
IMPORTANT! The resistance in the leads to the AC-side connection terminals must be as
low as possible for optimal functioning of grid monitoring.
Systems with
more than one inverter
For larger photovoltaic systems, it is possible to connect several inverters in parallel without any problems. To ensure symmetrical feeding, connect the inverters uniformly to all 3
phases.
NOTE! The inverter is designed to be connected to three-phase systems. Utilities
generally allow up to 6 kVA of unbalance, but check with your utility and try to balance the installation.
The connection to the grid should be done in the following way:
208 V / 240 V:
Connect Fronius IG Plus No. 1, No. 4, No. 7, ... to L1 and L2
Connect Fronius IG Plus No. 2, No. 5, No. 8, ... to L2 and L3
Connect Fronius IG Plus No. 3, No. 6, No. 9, ... to L1 and L3
277 V:
Connect Fronius IG Plus No. 1, No. 4, No. 7, ... to L1 and N
Connect Fronius IG Plus No. 2, No. 5, No. 8, ... to L2 and N
Connect Fronius IG Plus No. 3, No. 6, No. 9, ... to L3 and N
36
AC-side terminals
and grounding
terminals
u
1-phase inverters 208 V / 240 V
GET
L1
L2
N
N
N.C.
1-phase inverters 277 V
GET
L1
3-phase inverters 208 V / 240 V / 277 V
GET
(1) (2) (3)
L1
L2
L3
N
The terminals are designed for the following terminal connections:
Grounding terminals:
(1)
Grounding Electrode Terminal (GET)
A grounding electrode terminal may be required depending on local regulations.
(2)
Grounding of photovoltaic components (e.g., solar module frames)
The ground for photovoltaic components such as solar module frames must be
connected at the grounding terminals. The size of the wire usually corresponds to
the largest wire in the DC system.
(3)
Grid grounding / Grounding conductor
The Fronius IG Plus must be connected via the grounding terminal to the AC grid
grounding.
NOTE!
Use copper wires for all grounding cables
Use only solid or stranded wire. Do not use fine stranded wire.
See NEC section 250 for correct grounding.
AC-side terminals:
L1
= Phase conductor L1
L2
= Phase conductor L2
L3
= Phase conductor L3
N
= Neutral conductor N
NOTE! The neutral conductor is not bonded to ground internally.
NC
= Not connected
Max. wire cross section AWG 4
37
Cross section of
AC wires
WARNING! An electric shock can be fatal. Inadequately sized electrical components can cause serious injuries to persons and damage to (or loss of) property.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
Use minimum AWG 14 to maximum AWG 4, min. 167°F (75°C), copper wire
for all AC wiring connections to the Fronius IG Plus. Voltage drop and other
considerations may dictate larger size wires be used.
Use only solid or stranded wire. Do not use fine stranded wire.
Minimum cross section of AC wires (for an ambient temperature of 122 °F / 50 °C):
Safety
Fronius IG Plus
AC wire
208 V
AC wire
240 V
AC wire
277 V
3.0-1
AWG 12
AWG 14
AWG 14
3.8-1
AWG 12
AWG 12
AWG 12
5.0-1
AWG 8
AWG 10
AWG 12
6.0-1
AWG 8
AWG 8
AWG 10
7.5-1
AWG 6
AWG 6
AWG 8
10.0-1
AWG 4
AWG 4
AWG 6
11.4-1
AWG 4
AWG 4
AWG 4
11.4-3
AWG 8
AWG 8
-
12.0-3
-
-
AWG 12
Only an authorized electrician is permitted to connect this inverter to the public grid.
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
CAUTION! Danger of damaging the inverter due to an overload of the grid neutral
conductor.
Do not connect 2-phase and 3-phase devices to one phase
Never operate multiphase devices in one phase
CAUTION! Danger of damaging the inverter from improperly connected terminals. Improperly connected terminals can cause thermal damage to the inverter
and may cause a fire. When connecting the AC and DC cables, make sure that
all terminals are tightened securely using the proper torque.
38
1
2
u
Connecting the
Fronius IG Plus to
the public grid
(AC)
1
Conduit
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
3
4
**
2
1
1
1/2 in.
*
*
**
Connect grid grounding / grounding conductor to the right grounding terminal
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
Connect the AC wires to the AC-side terminals depending on the grid and phase quantity
of the inverter:
1 phase - 208 V / 240 V
1 phase - 277 V
GET
GET
L1
L2
L1
N
GET:
Grounding electrode terminal
3 phases - 208 V / 240 V / 277 V
L1
L2
L3
N
N.C.:
Not used
NOTE! Form a min. 4 in. wire loop using all wires.
39
N
N.C.
Connecting
grounding electrode wire
If the photovoltaic system requires a grounding electrode, it should be connected as follows:
1
2
4
2
2
1
1/2 in.
3
1
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
NOTE! Form a min. 4 in. wire loop using all wires.
Recommendation for the ACside overcurrent
protection
NOTE! To reduce the risk of fire, connect only to a circuit provided with branch
circuit overcurrent protection in accordance with the National Electrical Code,
ANSI / NFPA 70, at a MAXIMUM of:
Fronius IG Plus
Additional external AC and/or DC
disconnect
Overcurrent protection
208 V
240 V
277 V
3.0-1
20 A
20 A
15 A
3.8-1
25 A
20 A
20 A
5.0-1
30 A
30 A
25 A
6.0-1
40 A
35 A
30 A
7.5-1
45 A
40 A
35 A
10.0-1
60 A
60 A
45 A
11.4-1
70 A
60 A
60 A
11.4-3
40 A
35 A
-
12.0-3
-
-
20 A
Depending on the installation, an additional external AC and/or DC disconnect may be required if the inverter is installed in a location not easily accessible to utility or fire personnel.
Contact your local authorities for additional information.
40
General information about solar
modules
Safety
In order to select suitable solar modules and get the most efficient use out of the inverter,
please note the following points:
The open circuit voltage of the solar modules increases as the temperature decreases
(assuming constant irradiance). The open circuit voltage should never rise above 600
V at a temperature of 14 °F (-10 °C) and an irradiance of 1000 W/m².
If the open circuit voltage exceeds 600 volts, the inverter may be damaged, and all
warranty rights will become null and void.
More exact data for sizing the solar array for the particular location can be obtained
using calculation tools such as the Fronius Configuration Tool (available at http://
www.fronius-usa.com).
See NEC table 690.7 for the appropriate code-related voltage adjustment factor for
crystalline silicon modules, or use the manufacturer’s specified voltage coefficient.
WARNING! An electric shock can be fatal. Danger due to grid voltage and DC
voltage from solar modules.
The connection area should only be opened by a licensed electrician.
The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
The DC main switch is only used to switch off power to the power stage set. When
the DC main switch is turned off, the connection area is still energized.
CAUTION! Danger of damaging the inverter from improperly connected terminals. Improperly connected terminals can cause thermal damage to the inverter
and may cause a fire. When connecting the AC and DC cables, make sure that
all terminals are tightened securely using the proper torque.
41
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Connecting Solar Module Strings to the Fronius IG
Plus (DC)
DC terminals
DC+
Polarity Reversal
of Solar Module
Strings
DC-
The inverter comes standard with 6 metal bolts in fuse holders in the connection area. The
inverter is designed so that a reverse polarity of all solar module strings will not cause any
damage to the inverter when these metal bolts are used.
CAUTION! However, there is a risk of damage and fire to the inverter due to reverse polarity of a solar module string when the metal bolts are used.
The reverse polarity of a solar module string can cause an unacceptable thermal
load, which can lead to an inverter fire.
When using metal bolts, always make sure that the polarity is correct before connecting the individual solar module strings.
If string fuses are used instead of the metal bolts, the reverse polarity of an individual solar
module string can cause damage to the inverter and cause an inverter fire.
CAUTION! Risk of damage and fire to inverter due to reverse polarity of solar
module strings when using string fuses.
Reverse polarity of solar module strings can lead to an unacceptable overload to
a string fuse being used. This can cause a strong arc, which can lead to an inverter fire.
When using string fuses, always make sure that the polarity is correct before connecting the individual solar module strings.
Overview
‘Connecting solar module strings to the Fronius IG Plus (DC)’ includes the following sections:
-
Connecting solar module strings
Criteria for the proper selection of string fuses
-
Connecting combined solar module strings using connecting distributors
-
Solar module ground at positive pole: Connecting solar module strings
Criteria for the proper selection of string fuses
-
Solar module ground at positive pole: Connecting combined solar module strings using connecting distributors
42
Solar module
ground
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Connecting solar module strings
The inverter is designed for a solar module ground at the negative pole. The solar module
ground is carried out via a fuse in the inverter.
Solar module ground at negative pole with fuse:
Solar module
DC+
Inverter
DC main switch
String fuse
N
L1
=
GFDI fuse
L2
~
L3
GND
DC-
WARNING! An electric shock can be fatal. Normally grounded conductors may
be ungrounded and energized when a ground fault is indicated. The ground fault
has to be repaired before operation is resumed.
NOTE! Do not connect the ground to the negative DC line at any point! This is already done within the inverter. If negative DC lines are connected to the DC terminals or prior to this to the ground, this will circumvent the GFDI protection
system, preventing your inverter from properly detecting a fault current.
In addition, turning the DC disconnect to the OFF/open circuit condition will not
disconnect the array from ground, as it only disconnects the DC positive.
Wire cross section of solar module strings
WARNING! An electric shock can be fatal. Inadequately sized electrical components can cause serious injuries to persons and damage to (or loss of) property.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
Use minimum AWG 14, min. 167 °F (75 °C), copper wire for all grounding
wires (see NEC table 250.122).
Use minimum AWG 14 to maximum AWG 6, min. 167°F (75°C), copper wire
for all DC wiring connections to the inverter. Voltage drop and other considerations may dictate larger size wires be used.
Use only solid or stranded wire. Do not use fine stranded wire.
NOTE! To ensure an effective strain relief device for solar module strings, only
use cable cross sections of the same size.
43
Connecting solar
module strings
1
2
Conduit
1
1
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
CAUTION! Danger of damaging the inverter by overload.
Only connect a maximum of 20 A to an individual DC terminal.
Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on
the inverter.
3
4
2
1/2 in.
2
1
4
6
5
4
1
3
* Wire for solar module grounding
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
44
The DC Voltage must not exceed 600 V, regardless of temperature.
45
u
NOTE! Connecting the DC wiring
with the wrong polarity may cause
damage to the inverter. Check
both the polarity and the open circuit voltage.
5
6
2
2
1.33 ft. lb.
1.33 ft. lb.
DC+
DC+
3
1
DC-
1
DC+
DC-
Tightening torque for solid and stranded
wires
Tightening torque for solid and stranded
wires
NOTE! Form a min. 4 in. wire loop using all wires.
7
8
SMON
4
1
1
2
2
2
2
3
SMOFF
3
IMPORTANT!
Set the jumper from the 'SMON' position to the 'SMOFF' position for correct measurement results
Check the polarity and voltage of the solar module strings: the voltage should be a
max. of 600 V, the difference between the individual solar module strings should be a
max. of 10 V.
9
10
3
SMON
2
1
DC+
DC-
46
SMOFF
IMPORTANT The inverter is shipped with conductive slugs in the fuse holders. Series fusing may be required depending on the type of solar module used in the system.
See NEC 690.9.
1
Select string fuses according to the information from the solar module manufacturer
or as per ‘Criteria for the proper selection of string fuses’ (max. 20 A per individual DC
terminal)
IMPORTANT!
Follow all solar module safety instructions
Follow all solar module manufacturer requirements
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules. Fuse covers are for installation purposes only. They offer no protection
against contact.
2
NOTE!
Insert fuses only with a fuse
cover in the respective fuse
holder
Do not operate the inverter
without fuse covers
1
DC2
3
4
DC-
47
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Inserting string
fuses
Criteria for the Proper Selection of String Fuses
DC disconnect requirements
NEC 690.15-18 allows the use of fuse holders as a suitable means of disconnecting PV
arrays for servicing.
Additional DC disconnects external to the inverter may be required by the local authority
having jurisdiction.
General
The use of string fuses in the inverter also adds fuse protection to the solar modules.
A crucial factor for the fuse protection of solar modules is the maximum short circuit current
Isc of the respective solar module.
Criteria for the
proper selection
of string fuses
The following criteria must be fulfilled for each solar module string when using fuse protection:
IN > 1.56 x ISC
IN < 2.00 x ISC
VN >/= 600 V DC
Fuse dimensions: Diameter 0.41 x 1.38 - 1.50 in. (10.3 x 35 -38 mm)
IN
ISC
VN
Nominal current rating of fuse
Short circuit current for standard test conditions (STC) according to solar module
data sheet
Nominal voltage rating of fuse
NOTE! The string fuse size must not be greater than the maximum fuse size rating of the PV module as provided on the PV module manufacturers data sheet. If
no maximum fuse size is indicated, please contact the PV module manufacturer.
Effects of Using
Underrated Fuses
Fuse Recommendations
In underrated fuses, the nominal current value is less than the short circuit current of the
solar module.
Effect:
The fuse may trip in intensive lighting conditions.
NOTE! Only select fuses suitable for a voltage of 600 V DC.
You should only use the following fuses, which have been tested by Fronius, to ensure
problem-free fuse protection:
Littelfuse KLKD fuses
Cooper Bussmann PV fuses
Fronius shall not be liable for any damage or other incidents resulting from the use of other
fuses. In addition, all warranty claims are forfeited.
48
Example: Maximum short circuit current (ISC) of the solar module = 5.75 A
According to the criteria for selecting the correct fuse, the fuse must have a nominal current
greater than 1.56 times the short circuit current:
5.75 A x 1.56 = 8.97 A
The fuse that should be selected according to the ‘Fuses’ table:
KLK D 9 with 9.0 A and 600 V AC / DC
Fuses
Nominal current
value
Fuse
Nominal current
value
Fuse
1.0 A
KLK D 1
6.0 A
KLK D 6
1.5 A
KLK D 1 1/2
7.0 A
KLK D 7
2.0 A
KLK D 2
8.0 A
KLK D 8
2.5 A
KLK D 2 1/2
9.0 A
KLK D 9
3.0 A
KLK D 3
10.0 A
KLK D 10
3.5 A
KLK D 3 1/2
12.0 A
KLK D 12
4.0 A
KLK D 4
15.0 A
KLK D 15
5.0 A
KLK D 5
20.0 A
KLK D 20
"Fuses" Table: Excerpt of Suitable Fuses, e.g., Littelfuse Fuses
49
u
Application example
Connecting combined solar module strings using
connecting distributors
General
If several solar module strings are combined outside of the inverter into one solar module
string, the current of the solar module string can be higher than the current permitted for a
DC terminal (20 A).
In this case, you have the option of connecting the DC cables to the inverter using a connecting distributor.
Additional components required
The following components are required for connecting DC cables via a connecting distributor:
-
2 connecting distributors (available
from Fronius as an option)
-
Cable lugs
Select the cable lugs according to the
available DC cables
-
Hexagon screws
Hexagon nuts
that fit the cable lugs
Option
Solar module
ground
The inverter is designed for a solar module ground at the negative pole. The solar module
ground is carried out via a fuse in the inverter.
Solar module ground at negative pole with fuse:
Solar module
DC+
Inverter
DC main switch
String fuse
N
L1
=
GFDI fuse
L2
~
L3
GND
DC-
50
NOTE! Do not connect the ground to the negative DC line at any point! This is already done within the inverter. If negative DC lines are connected to the DC terminals or prior to this to the ground, this will circumvent the GFDI protection
system, preventing your inverter from properly detecting a fault current.
In addition, turning the DC disconnect to the OFF/open circuit condition will not
disconnect the array from ground, as it only disconnects the DC positive.
Safety
Connecting combined solar module strings using
connecting distributors
WARNING! An electric shock can be fatal. Inadequately sized electrical components can cause serious injuries to persons and damage to (or loss of) property.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
Use copper wires for all grounding cables.
See NEC section 250 for correct grounding.
Use only solid or stranded wire. Do not use fine stranded wire.
1
2
Conduit
1
1
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
51
u
WARNING! An electric shock can be fatal. Normally grounded conductors may
be ungrounded and energized when a ground fault is indicated. The ground fault
has to be repaired before operation is resumed.
3
4
4
DC+
1
2
5
1/2 in.
4
3
3
2
1
* Wire for solar module grounding
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
NOTE! Connecting the DC wiring
with the wrong polarity may cause
damage to the inverter. Check
both the polarity and the open circuit voltage.
The DC Voltage must not exceed 600 V, regardless of temperature.
52
6
u
5
1
1/2 in.
3
2
1
DC+
6x
3
DC+
2
4
7
1.33 ft. lb.
8
3
3
1
DC-
1
2
6x
3
1/2 in.
2
DC4
1.33 ft. lb.
NOTE! Form a min. 4 in. wire loop using all wires.
CAUTION! Danger of damaging the inverter by overload. Before start-up operation make sure that there is a conductive slug in each fuse holder for string fuses.
Insert conductive slugs only with a fuse cover in the respective fuse holder
Do not operate the inverter without fuse covers
53
Solar Module Ground at Positive Pole: Connecting
Solar Module Strings
General
The following steps are necessary when the solar module manufacturer requires a solar
module ground at the positive pole.
Solar module
ground at positive pole
Solar module ground at positive pole with fuse:
Solar module
Inverter
DC+
DC main switch
String fuse
=
~
GFDI fuse
N
L1
L2
L3
GND
DC-
WARNING! An electric shock can be fatal. Normally grounded conductors may
be ungrounded and energized when a ground fault is indicated. The ground fault
has to be repaired before operation is resumed.
NOTE! Do not connect the ground to the positive DC line at any point! This is already done within the inverter. If positive DC lines are connected to the DC terminals or prior to this to the ground, this will circumvent the GFDI protection system,
preventing your inverter from properly detecting a fault current.
In addition, turning the DC disconnect to the OFF/open circuit condition will not
disconnect the array from ground, as it only disconnects the DC negative.
Wire cross section of solar module strings
WARNING! An electric shock can be fatal. Inadequately sized electrical components can cause serious injuries to persons and damage to (or loss of) property.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
Use minimum AWG 14, min. 167 °F (75 °C), copper wire for all grounding
wires (see NEC table 250.122).
Use minimum AWG 14 to maximum AWG 6, min. 167°F (75°C), copper wire
for all DC wiring connections to the inverter. Voltage drop and other considerations may dictate larger size wires be used.
Use only solid or stranded wire. Do not use fine stranded wire.
54
1
2
Conduit
1
1
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
3
4
1.33 ft. lb.
1
2
3
AD
IN
E
LO
L
E
IN
L
Solar module
ground at positive pole: Connecting solar
module strings
5
AD
LO
-
4
+
1
3
2
black
1
4
3
red
red
black
After disconnecting the DC filter wire:
Connect the red DC+ wire to the DC- connection of the DC filter as per step 4
Connect the black DC- wire to the DC+ connection of the DC filter as per step 4
NOTE! Identify the reversed polarity accordingly with (+) and (-) at the DC terminals.
55
u
NOTE! To ensure an effective strain relief device for solar module strings, only
use cable cross sections of the same size.
5
6
2
1/2 in.
2
1
4
6
5
4
1
3
* Wire for solar module grounding
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
NOTE! Connecting the DC wiring
with the wrong polarity may cause
damage to the inverter. Check
both the polarity and the open circuit voltage.
The DC Voltage must not exceed 600 V, regardless of temperature.
CAUTION! Danger of damaging the inverter by overload.
Only connect a maximum of 20 A to an individual DC terminal.
Connect the DC+ wire to the right connection of the inverter's DC terminals.
Connect the DC- wire to the left connection of the inverter's DC terminals.
7
8
1.33 ft. lb.
Tightening torque for solid and stranded
wires
56
1.33 ft. lb.
Tightening torque for solid and stranded
wires
u
NOTE! Form a min. 4 in. wire loop using all wires.
9
10
SMON
4
1
1
2
2
2
2
3
SMOFF
3
IMPORTANT!
Set the jumper from the 'SMON' position to the 'SMOFF' position for correct measurement results
Check the polarity and voltage of the solar module strings: the voltage should be a
max. of 600 V, the difference between the individual solar module strings should be a
max. of 10 V.
11
12
3
SMON
2
1
Inserting string
fuses
SMOFF
IMPORTANT The inverter is shipped with conductive slugs in the fuse holders. Series fusing may be required depending on the type of solar module used in the system.
See NEC 690.9.
1
Select string fuses according to the information from the solar module manufacturer
or as per ‘Criteria for the proper selection of string fuses’ (max. 20 A per individual DC
terminal)
IMPORTANT!
Follow all solar module safety instructions
Follow all solar module manufacturer requirements
57
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules. Fuse covers are for installation purposes only. They offer no protection
against contact.
2
NOTE!
Insert fuses only with a fuse
cover in the respective fuse
holder
Do not operate the inverter
without fuse covers
1
DC2
3
4
DC-
58
DC disconnect requirements
NEC 690.15-18 allows the use of fuse holders as a suitable means of disconnecting PV
arrays for servicing.
Additional DC disconnects external to the inverter may be required by the local authority
having jurisdiction.
General
The use of string fuses in the inverter also adds fuse protection to the solar modules.
A crucial factor for the fuse protection of solar modules is the maximum short circuit current
Isc of the respective solar module.
Criteria for the
proper selection
of string fuses
The following criteria must be fulfilled for each solar module string when using fuse protection:
IN > 1.56 x ISC
IN < 2.00 x ISC
VN >/= 600 V DC
Fuse dimensions: Diameter 0.41 x 1.38 - 1.50 in. (10.3 x 35 -38 mm)
IN
ISC
VN
Nominal current rating of fuse
Short circuit current for standard test conditions (STC) according to solar module
data sheet
Nominal voltage rating of fuse
NOTE! The string fuse size must not be greater than the maximum fuse size rating of the PV module as provided on the PV module manufacturers data sheet. If
no maximum fuse size is indicated, please contact the PV module manufacturer.
Effects of Using
Underrated Fuses
Fuse Recommendations
In underrated fuses, the nominal current value is less than the short circuit current of the
solar module.
Effect:
The fuse may trip in intensive lighting conditions.
NOTE! Only select fuses suitable for a voltage of 600 V DC.
You should only use the following fuses, which have been tested by Fronius, to ensure
problem-free fuse protection:
Littelfuse KLKD fuses
Cooper Bussmann PV fuses
Fronius shall not be liable for any damage or other incidents resulting from the use of other
fuses. In addition, all warranty claims are forfeited.
59
u
Criteria for the Proper Selection of String Fuses
Application example
Example: Maximum short circuit current (ISC) of the solar module = 5.75 A
According to the criteria for selecting the correct fuse, the fuse must have a nominal current
greater than 1.56 times the short circuit current:
5.75 A x 1.56 = 8.97 A
The fuse that should be selected according to the ‘Fuses’ table:
KLK D 9 with 9.0 A and 600 V AC / DC
Fuses
Nominal current
value
Fuse
Nominal current
value
Fuse
1.0 A
KLK D 1
6.0 A
KLK D 6
1.5 A
KLK D 1 1/2
7.0 A
KLK D 7
2.0 A
KLK D 2
8.0 A
KLK D 8
2.5 A
KLK D 2 1/2
9.0 A
KLK D 9
3.0 A
KLK D 3
10.0 A
KLK D 10
3.5 A
KLK D 3 1/2
12.0 A
KLK D 12
4.0 A
KLK D 4
15.0 A
KLK D 15
5.0 A
KLK D 5
20.0 A
KLK D 20
"Fuses" Table: Excerpt of Suitable Fuses, e.g., Littelfuse Fuses
60
General
The following steps are necessary when the solar module manufacturer requires a solar
module ground at the positive pole.
If several solar module strings are combined outside of the inverter into one solar module
string, the current of the solar module string can be higher than the current permitted for a
DC terminal (20 A).
In this case, you have the option of connecting the DC cables to the inverter using a connecting distributor.
Additional components required
The following components are required for connecting DC cables via a connecting distributor:
-
2 connecting distributors (available
from Fronius as an option)
-
Cable lugs
Select the cable lugs according to the
available DC cables
-
Hexagon screws
Hexagon nuts
that fit the cable lugs
Option
61
u
Solar module ground at positive pole: Connecting
combined solar module strings using connecting
distributors
Solar module
ground at positive pole
Solar module ground at positive pole with fuse:
Solar module
Inverter
DC+
DC main switch
String fuse
=
~
GFDI fuse
N
L1
L2
L3
GND
DC-
WARNING! An electric shock can be fatal. Normally grounded conductors may
be ungrounded and energized when a ground fault is indicated. The ground fault
has to be repaired before operation is resumed.
NOTE! Do not connect the ground to the positive DC line at any point! This is already done within the inverter. If positive DC lines are connected to the DC terminals or prior to this to the ground, this will circumvent the GFDI protection system,
preventing your inverter from properly detecting a fault current.
In addition, turning the DC disconnect to the OFF/open circuit condition will not
disconnect the array from ground, as it only disconnects the DC negative.
Safety
WARNING! An electric shock can be fatal. Inadequately sized electrical components can cause serious injuries to persons and damage to (or loss of) property.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
Use copper wires for all grounding cables.
See NEC section 250 for correct grounding.
Use only solid or stranded wire. Do not use fine stranded wire.
62
2
Conduit
u
1
1
1
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
3
4
1.33 ft. lb.
1
2
3
AD
IN
E
LO
L
E
IN
L
Solar module
ground at positive pole: Connecting combined
solar module
strings using
connecting distributors
5
AD
LO
-
4
+
1
3
1
4
2
black
3
red
red
black
After disconnecting the DC filter wire:
Connect the red DC+ wire to the DC- connection of the DC filter as per step 4
Connect the black DC- wire to the DC+ connection of the DC filter as per step 4
NOTE! Identify the reversed polarity accordingly with (+) and (-) at the DC terminals.
3
4
2
1
DC-
1
4
* Wire for solar module grounding
63
5
3
2
Tightening torque:
Stranded wires 1.25 ft. lb.
Solid wires 0.81 ft. lb.
NOTE! Connecting the DC wiring
with the wrong polarity may cause
damage to the inverter. Check
both the polarity and the open circuit voltage.
The DC Voltage must not exceed 600 V, regardless of temperature.
CAUTION! Danger of damaging the inverter by overload.
Connect the DC+ wire to the right connection of the inverter's DC terminals.
Connect the DC- wire to the left connection of the inverter's DC terminals.
7
8
1
1/2 in.
3
2
1
6x
DC-
3
DC-
2
4
9
1.33 ft. lb.
10
3
3
1
1
2
DC+
2
DC+
64
6x
3
1/2 in.
4
1.33 ft. lb.
u
NOTE! Form a min. 4 in. wire loop using all wires.
CAUTION! Danger of damaging the inverter by overload. Before start-up operation make sure that there is a conductive slug in each fuse holder for string fuses.
Insert conductive slugs only with a fuse cover in the respective fuse holder
Do not operate the inverter without fuse covers
65
Attaching power stage sets and closing the Fronius
IG Plus
Preparation
1
2
1
2
5
4
8
6
1
2
*)
Attaching power
stage sets and
closing the Fronius IG Plus
Attach all fixing screws from any available option cards.
1
2
1
2
2
1
The inverter is now operational.
Opening Fronius
IG Plus for service/maintenance
Procedure for opening the inverter for service or maintenance:
1
Disconnect AC and DC supply from the inverter
2
Open the connection area
3
Turn off DC main switch
4
Allow the capacitors to discharge (5 minutes)
5
Remove metal covers
6
Remove the plastic dividers
7
Remove string fuses
66
1
3
3
7
*)
Disconnect DC wires
9
Disconnect AC wires
u
8
67
Commissioning
Factory pre-set
configuration
The inverter has been pre-configured in the factory and is ready for operation. You only
have to set the available power grid for startup.
To change your inverter settings, please see section ‘The setup menu’ in the chapter ‘Operation.’
Requirements for
start-up operation
-
Inverter connected to the public grid (AC)
Inverter connected to solar modules (DC)
3 plastic dividers inserted
2 metal covers mounted
Power stage set mounted
NOTE! Do not operate the inverter without fuse covers.
Start-up operation
ON
1
1
Turn on AC disconnect
2
Flip DC main switch to position - 1 -
As soon as the photovoltaic modules produce sufficient power, the Operating Status
LED lights up orange.
on
of
f
AC
The orange LED indicates that the feed-in
mode of the inverter will begin shortly.
2
The screen displays the startup phase.
-
68
Segment test
All display elements light up for about
one second
The inverter goes through a master
check list for several seconds
The display shows ‘TEST’ and indicates the respective component that is
being tested (for example, ‘LED’)
-
The grid selection phase begins: 'SETUP SEL' is shown
3
Press the ‘Enter’ key
The first grid selection option is shown
(e.g., 208 V)
4
Several grid selection options are displayed depending on the product type (see also section 'Connecting the Fronius IG Plus to the public grid’).
1
Use the ‘Up’ and ‘Down’ keys to select the desired grid:
L1
~
~
L3
Grid voltage 208 V Delta
No neutral conductor in the system
Neutral conductor monitoring is deactivated
69
=
V
20
8
°
V
°
0
12
=
8
20
12
0
Selecting the grid
Select the grid
208 V
120 °
=
~
L2
u
-
L1
120 V
8V
20
0
12
L3
V
=
8V
N
~
°
12
0
°
0
12
20
=
~
12
0V
L2
208 V
120 °
Grid voltage 208 V Delta: 120 V WYE
Neutral conductor available in the system
Neutral conductor monitoring is activated
=
~
L1
V
=
V
24
0
°
12
0
°
0
12
0
24
=
~
~
L3
L2
240 V
120 °
Grid voltage 240 V Delta
No neutral conductor in the system
Neutral conductor monitoring is deactivated
=
~
L3
V
V
24
0
°
12
0
°
0
12
0
24
=
~
~
N
L2
120 V
120 V
120 °
=
~
70
=
L1
V
V
24
0
=
°
12
0
°
0
12
0
24
=
u
L3
~
~
N
L2
120 V
120 V
L1
120 °
Grid voltage 240 V: 120 V Stinger
Neutral conductor available in the system
Neutral conductor monitoring is activated
=
~
180 °
Grid voltage 240 V: 120 V Split Phase
Neutral conductor available in the system
Neutral conductor monitoring is activated
N
120 V
L1
120 V
L2
240 V
=
~
L1
277 V
48
0V
7
27
L3
2
V
27
7
°
12
0
°
0
12
N
~
Grid voltage 480 V Delta: 277 V WYE
Neutral conductor available in the system
Neutral conductor monitoring is activated
0V
48
=
=
~
V
L2
480 V
120 °
=
~
Press the 'Enter' key 2x to confirm your grid selection (or use the 'Esc' key to return to
grid selection)
The startup phase restarts with the segment test.
71
Startup phase
during startup operation
72
-
Segment test
All display elements light up for about
one second.
-
The inverter goes through a master
check list for several seconds.
The display shows ‘TEST’ and indicates the respective component that is
being tested (for example, ‘LED’)
-
‘TEST COM’ is shown.
-
Synchronization with grid:
‘WAIT PS’ is displayed, the inverter
icon flashes: the inverter is waiting for
all power stage sets in the network to
be on stand-by. This procedure takes
place dependent on the DC voltage.
-
Next, the display shows ‘SYNC AC,’
the grid icon flashes.
Startup test:
Before the inverter starts feeding energy into the grid, the conditions of
the grid are tested in detail in accordance with local regulations. The display shows ‘START UP.’
-
Operation of feeding energy into the
grid:
After selecting the grid and when the
tests are concluded, the inverter starts
feeding energy into the grid.
The display shows the present power
feeding into the grid.
The Operating Status LED lights up
green, and the inverter starts operating.
IMPORTANT! For more information about the startup phase, please see the chapter 'Operation', section 'Product description Fronius IG Plus' (Startup Phase, Test Procedure).
Setting inverter
for solar module
ground at the
positive pole
If the inverter will be operated with solar modules that require a solar module ground at the
positive pole, the corresponding grounding method must be set in the ‘Basic Service’
menu.
A 5-digit code is required for accessing the ‘Basic Service’ menu. This access code will be
provided by Fronius upon request.
If solar modules are connected to the inverter that require a solar module ground at the
positive pole, the status message 472 "Ground fault detected" will be displayed after the
inverter is turned on and the startup phase is completed.
1
Press the unoccupied ‘Esc’ key 5 x
‘CODE’ is displayed, the first digit flashes.
73
2
Use the ‘Up’ and ‘Down’ keys to select
a value for the first digit of the access
code
3
Press the ‘Enter’ key
u
-
The second digit flashes.
4
Use the ‘Up’ and ‘Down’ keys to select
a value for the second digit of the access code
5
Press the ‘Enter’ key
The third digit flashes.
6
Use the ‘Up’ and ‘Down’ keys to select
a value for the third digit of the access
code
7
Press the ‘Enter’ key
The fourth digit flashes.
8
Use the ‘Up’ and ‘Down’ keys to select
a value for the fourth digit of the access
code
9
Press the ‘Enter’ key
The fifth digit flashes.
10 Use the ‘Up’ and ‘Down’ keys to select
a value for the fifth digit of the access
code
11 Press the ‘Enter’ key
The access code flashes.
*) ... Code example
*)
12 Press the ‘Enter’ key
The inverter is now in the ‘Basic Service’
menu, the first parameter is displayed:
‘MIX MODE’ for multiphase inverters
‘DC MODE’ for single-phase inverters
74
14 Press the ‘Enter’ key
The set grounding method is displayed.
15 Use the ‘Up’ and ‘Down’ keys to select
the corresponding ‘POS GND’ grounding method:
POS = solar module ground at the positive
pole
16 Press the ‘Enter’ key to apply the required grounding method
17 Press the ‘Esc’ key to exit the ‘Basic
Service’ menu
75
u
13 Use the ‘Up’ and ‘Down’ keys to select
the ‘GND MODE’ parameter
Inserting Option Cards
Suitable option
cards
There are several options and system upgrades available for the inverter, e.g.:
Datalogger and modem interface, Ethernet/Internet connection (for using a PC to record and manage data from your photovoltaic system)
Various large displays (Fronius Public Display)
Fronius Personal Display
System upgrades are available as plug-in cards and as external boxes. The Fronius IG
Plus 12.0-3 WYE 277 is designed for three option cards, all other Fronius IG Plus products
are designed for two option cards.
Safety
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
Never work with live wires! Prior to all connection work, make sure that the
AC and DC wires are not charged.
All electrical installations must be carried out in accordance with the National
Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.
For installations in Canada, the installations must be done in accordance with
applicable Canadian standards.
WARNING! An electric shock can be fatal. Danger from residual voltage from capacitors.
You must wait until the capacitors have discharged. Discharge takes 5 minutes.
NOTE! Follow general ESD precautions when handling option cards.
76
When adding option cards to the inverter, please follow all inverter safety instructions and
information before opening the inverter.
1
2
9
5
8
3 4
2
7
6
*)
1
1
2
*)
Remove all fixing screws from any available option cards.
IMPORTANT! The plastic dividers are used to separate the data communication wires
from the AC and DC wires:
Data communication wires must be laid above the plastic dividers
AC and DC wires are laid under the plastic dividers
Make sure that the plastic dividers are present.
Inserting option
cards
1
Insert option cards into free slots.
1
Connecting option cards, laying
data communication wires
CAUTION! Danger of short circuit by loose metal parts from knockouts. Loose
metal parts in the inverter may cause short circuits when the inverter is powered
up. When removing knockouts, make sure that
no loose metal parts fall into the inverter
any metal pieces that do fall into the inverter are removed immediately
77
u
Opening the inverter
NOTE! The knockout for the data communication wires must be above the plastic
dividers so that the plastic dividers are always under the data communication
wires.
2
1
*
1
1
* Position of
plastic dividers
Conduit
NOTE! Use only water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter.
3
4
1
1
2
2
2
3=
4=
2
1
one wire input for both data communication wires
separated wire inputs on opposite sides (e.g., when several inverters are installed
next to each other)
78
IMPORTANT! Secure newly-added option cards to the metal cover using the screws provided with the option cards.
1
2
2
6
1
45
3
8
7
2
9
1
79
u
Closing the inverter
Data Communication and Solar Net
Solar Net and
data interface
Fronius developed Solar Net to make these add-on system components flexible and capable of being used in a wide variety of different applications. Solar Net is a data network
that enables several inverters to be linked with the system upgrades.
Solar Net is a bus system. A single cable is all that is required for one or more inverters
to communicate with all system upgrade components.
The core of the Solar Net is the Fronius Datalogger. It coordinates data transmissions and
ensures that even large volumes of data are distributed quickly and securely.
The ‘Fronius Com Card’ is used to integrate the inverter into Solar Net.
Important Every inverter that is to be monitored using a Datalogger requires a ‘Fronius
Com Card.’ In this case, the ‘Fronius Com Card’ serves as a link between the internal network of the inverter and the Solar Net interface of the Datalogger.
Important Each inverter can have only one ‘Fronius Com Card.’ A network may only contain one Fronius Datalogger.
The first inverter with a ‘Fronius Com Card’ can be positioned up to 3280 ft. (1000 m)
away from the last inverter with a ‘Fronius Com Card.’
Different system upgrades are detected automatically by Solar Net.
In order to distinguish among several identical system upgrades, each one must be assigned a unique number.
In order to uniquely identify each inverter in Solar Net, each inverter must also be assigned an individual number.
You can assign individual numbers as per ‘The setup menu’ section in this manual.
More detailed information on the individual system upgrades can be found in the relevant
operating instructions or on the Internet at http:\\www.fronius-usa.com.
IN
2
OUT
PC
IN
= Terminating plug
80
Sensor Box
Fronius
IG Plus
Com Card
Datalogger C.
1
Fronius
IG Plus
RS 232
Fronius
IG Plus
Com Card
Logging and archiving inverter and sensor data using a Fronius Datalogger and Fronius
Sensor Box:
Com Card
Example
3
IN OUT
OUT
°C
m/s
W/m²
IN
OUT
Option cards communicate within the Fronius IG Plus via its internal network. External
communication (Solar Net) takes place via the 'Fronius Com Cards.' Each 'Fronius Com
Card' is equipped with two RS485 interfaces - an input and an output. RJ45 plug connectors are used to connect to these cards.
81
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Illustration explanation: Data network with 3 Fronius IG Plus units and one Fronius Sensor
Box:
all Fronius IG Plus units have one 'Fronius COM Card'
one Fronius IG Plus has a 'Fronius Datalogger Card' (no. 2)
Fronius Datalogger has two RS-232 interfaces for connecting to a PC and a modem
Selecting the interface protocol and setting the inverter baud rate
General
If a data communication connection is required between the inverter and other Fronius
data communication components, the ‘Interface protocol’ must be set in the ‘Basic Service’
menu.
The following 5-digit access code must be entered to access the ‘Basic Service’ menu:
22742
Entering the access code
1
Press the ‘Menu’ key
‘Menu’ is shown.
2
Select the ‘Setup’ mode using the ‘Left’
or ‘Right’ keys
3
Press the unoccupied ‘Esc’ key 5 x
‘CODE’ is displayed, the first digit flashes.
4
Enter the access code 22742:
Use the ‘Up’ and ‘Down’ keys to select
a value for the first digit of the access
code
5
Press the ‘Enter’ key
The second digit flashes.
6
82
Repeat steps 4 and 5 for the second,
third, fourth and fifth digit of the access
code until ...
14 Press the ‘Enter’ key
The inverter is now in the ‘Basic Service’
menu, the first parameter is displayed:
‘MIX MODE’ for multiphase inverters
‘DC MODE’ for single-phase inverters
Selecting the interface protocol
for communication with other
data communication components
The inverter is in the ‘Basic Service’ menu,
the first parameter is displayed:
‘MIX MODE’ for multiphase inverters
‘DC MODE’ for single-phase inverters
83
u
... the access code flashes.
1
Use the ‘Up’ and ‘Down’ keys to select
the ‘COMM’ parameter
2
Press the ‘Enter’ key
‘MODE’ is shown.
3
Press the ‘Enter’ key
The set protocol type is displayed.
4
Use the ‘Up’ and ‘Down’ keys to select
the ‘IFP’ protocol type (interface protocol):
5
Press the ‘Enter’ key to apply the ‘IFP’
protocol type.
The ‘IFP’ protocol type is applied, ‘MODE’
is displayed.
6
84
Press the ‘Esc’ key 2 x to exit the ‘Basic
Service’ menu
The inverter is in the ‘Basic Service’ menu,
the first parameter is displayed:
‘MIX MODE’ for multiphase inverters
‘DC MODE’ for single-phase inverters
1
Use the ‘Up’ and ‘Down’ keys to select
the ‘COMM’ parameter
2
Press the ‘Enter’ key
‘MODE’ is shown.
3
Use the ‘Up’ and ‘Down’ keys to select
the ‘IFP’ parameter
4
Press the ‘Enter’ key
‘BAUD’ is displayed
5
85
Press the ‘Enter’ key
u
Setting the inverter baud rate
The set baud rate is displayed.
6
Use the ‘Up’ and ‘Down’ keys to select
the desired baud rate:
2400 / 4800 / 9600 / 14400 / 19200
7
Press the ‘Enter’ key
The selected baud rate is applied, ‘BAUD’
is displayed.
8
Press the ‘Esc’ key 3 x to exit the ‘Basic
Service’ menu
The inverter begins the startup phase after exiting the ‘Basic Service’ menu.
86
Operation
u
Product Description Fronius IG Plus
Controls and Indicators
(2)
(1)
(6)
Display
(5)
Item
Function
(1)
Display
for displaying values, settings and menus
(2)
Operating Status LED
for displaying the operating status
(3)
"Enter" key
for confirming a selection
(4)
"Menu / Esc" key
for scrolling through menu options
for exiting the Setup menu
(5)
"Down/Right" key
depending on the selection:
for navigating down
for navigating right
(6)
"Left/Up" key
depending on the selection:
for navigating left
for navigating up
(4)
(3)
The display unit's power is supplied via the safety-low voltage of the solar modules, which
means that the display unit can be used in the daytime.
IMPORTANT! The inverter display is not a calibrated measuring instrument. A slight inaccuracy of a few percent is intrinsic to the system. A calibrated meter will be needed to make
calculations for the power supply company.
89
(1)
(2)
(3)
(4)
(5)
(6)
(13)
(12)
(7)
(11)
(10)
Item
Function
(1)
Icons for the "Now" display mode
(2)
Icons for the "Day" display mode
(3)
Icons for the "Year" display mode
(4)
Icons for the "Total" display mode
(5)
Icons for the "Setup" display mode
(6)
Icons for operating conditions
(9)
(8)
The value shown represents the maximum value within the period of
observation (depending on which display mode is selected).
The value shown represents the minimum value within the period of
observation (depending on which display mode is selected).
Important The minimum and maximum values displayed do not represent the absolute extreme values, because data is recorded only at
two-second intervals.
... appears when values are displayed which are directly associated
with the solar modules
... appears when values are displayed which are directly associated
with the public grid
... appears with data readings that are directly related to the inverter
(7)
Range for display unit
for displaying the applicable measuring unit
(8)
Icon for the "Enter" key
(9)
Icons for the "Menu/Esc" key
(10)
Icons for the "Down/Right" key
(11)
Icons for the "Left/Up" key
(12)
Range for display value
for displaying the value
90
Function
(13)
Output bar (not active during setup)
indicates the output power fed into the grid at a given moment - regardless of the
display mode chosen. The screen displays % of the maximum possible output
power of your solar inverter
Operating Status
LED
Position of Operating Status LED on the inverter
Depending on the operating status, the
Operating Status LED assumes different
colors:
Operating Status LED Explanation
Steady green
The LED stays lit after the automatic startup phase of the inverter as long as power is being fed into the grid.
It indicates problem-free operation of the photovoltaic system.
Flashing green
The photovoltaic system is working correctly, a status code is on
the display.
When a status code is shown, rectify the relevant condition by
going to the "Maintenance and Service" chapter, "Status Diagnosis and Troubleshooting" section. The status code can be acknowledged by pressing the "Enter" key.
Steady orange
The inverter enters an automatic startup phase as soon as the
solar modules are delivering sufficient power after sunrise.
Flashes orange
A warning is shown on the display
or
the inverter has been set to standby operation in the Setup
menu (= manual shutoff of operation).
The next day, operation will resume automatically.
During the time the LED flashes orange, operation can be resumed manually at any time (see section "The Setup Menu")
Steady red
General status: the respective status code is shown on the
screen
Remains dark
There is no connection to the solar modules,
no solar module power due to darkness.
A list of most status codes, the corresponding status information, their status causes and
repair measures can be found in the chapter "Troubleshooting and Maintenance," section
"Status Diagnosis and Troubleshooting."
91
u
Item
Startup Phase and Grid Feed-in Mode
Startup phase
The inverter carries out a self test after being turned on automatically. Then a test of the
public grid is carried out. This test takes five minutes. During the startup sequence the illumination of the Operating Status LED is yellow.
Test procedure
1.
Segment test
All display elements light up for about one second
2.
Self test of essential inverter components
The inverter goes through a master check list for several seconds
The display shows ‘TEST’ and indicates the respective component that is being
tested (for example, ‘LED’)
3.
Synchronization with grid:
‘WAIT PS’ is displayed, the inverter icon flashes: The inverter is waiting for all
power stage sets in the network to be on stand-by. This procedure takes place
dependent on the DC voltage
-
4.
Next, the display shows ‘SYNC AC,’ the grid icon flashes.
Startup test
Before the inverter starts feeding energy into the grid, the conditions of the grid
are tested in accordance with local regulations.
The display shows ‘START UP.’
92
Whenever two scale divisions stop flashing and disappear, 1/10 of the total duration
of the test is over.
Operation of
Feeding Energy
into the Grid
-
Once the tests have been completed, the inverter starts feeding power into the grid.
The display shows the present power feeding into the grid.
The Operating Status LED lights up green, and the inverter starts operating.
93
u
The startup test takes five minutes. The time elapsed is indicated by a bar shrinking
from the top down.
Navigation in the Menu Level
Activating Display Illumination
1
Press any key
The display backlight is activated.
If no key is pressed for 30 seconds or more, the display backlight will go off again.
The setup menu also offers a choice between a permanently lit or permanently dark
display.
Accessing the
Menu Level
1
Press the "Menu" key (1)
(1)
"Menu" will appear on the display
The inverter is now in the menu level.
From the menu level you can
set the desired display mode
access the Setup menu
94
The Display
Modes
u
The Display Modes
"Now" display mode
...... Displays real-time values
"Day" display mode
...... Displays values for power fed into the grid during that day
"Year" display mode
...... Displays values for the present calendar year - only available in combination with optional Fronius Datalogger
"Total" display mode
...... Displays values for power fed into the grid since the inverter was started for the first time
Selecting a Display Mode
(1)
(7)
(2)
(6)
(3)
(4)
1
Accessing the menu level
2
Use the "left" (7) or "right" (6) keys to
select your preferred display mode (1)
- (4)
3
Press "Enter" (5)
(5)
The selected display mode is shown, e.g.,
"Day" display mode.
IMPORTANT! The "Year" menu option is
supported only when the optional Fronius
Datalogger is connected. This system upgrade includes a real-time clock.
95
Overview of Display Values
Display
mode
"Now"
Symbol
Unit
Optional
Display value
W
-
Output power
V
-
Grid voltage
A
-
Output current
Hz
-
Grid frequency
V
-
Solar module voltage
A
-
Solar module current
Mohm
-
Insulation resistance
HH:MM
x
Time
"Day"
kWh / MWh
-
Energy fed into the grid
"Year"
Currency
-
Return
"Total"
kg / T
-
CO2 reduction
W
-
Max. output power
V
-
Maximum grid voltage
V
-
Minimum grid voltage
V
-
Maximum array voltage
HH:MM
-
Service hours completed by the inverter
x
Optional
If the DatCom component for the required options are not available, the message
"N.A." (not available) is shown.
96
Selecting the
"Now" Display
Mode
1
Select the "Now" display mode
The first display value in the "Now" display
mode appears
2
Use the "Down" (2) key to scroll to the
next display value
Scroll back using the "Up" key (1)
(1)
(2)
Display values in
the ‘Now’ display
mode
Output power
power supplied to grid at the particular
moment (watts)
AC grid voltage
(volts)
*)
Output current
current supplied to the grid at the particular moment (amperes)
*)
*)
only for multi-phase inverters
Grid frequency
(hertz)
Solar module voltage
voltage of the solar array at the particular
moment (volts)
97
u
Display Values in "Now" Display Mode
Solar module current
current supplied by solar array at the particular moment (amperes)
GFDI status
If there is no ground fault in the system,
‘GFDI OK’ is displayed
NL-MON communication
When there is communication with the
‘NL-MON’ plug-in card, ‘NLMON OK’ is
displayed
Time (optional datalogger)
When the time on the inverter or a system
upgrade is changed, this changes the time
on all devices connected via Solar Net.
Options
If the DatCom component for the required options are not available, the message "N.A."
(not available) is shown.
98
General
For the Fronius IG Plus unit, the day begins when it switches on. If the DC supply line is
disconnected, the following parameters within the display mode ‘Day’ will be reset after repeating the start-up:
yield (currency can be selected)
CO2 reduction (lbs.)
maximum power supplied (Watts)
maximum grid voltage (Volts)
minimum grid voltage (Volts)
operating hours for Fronius IG Plus unit
If an optional datalogger is available, the display values listed always apply for the whole
day.
Selecting "Day /
Year / Total" Display Mode
First Display Value in the "Day" Display
Mode:
(1)
(2)
First Display Value in the "Year" Display
Mode:
(1)
99
(2)
u
Display Values in "Day / Year / Total" Display Modes
First Display Value in the "Total" Display
Mode:
1
Select the "Day" or
"Year" or
"Total" display mode
The first display value in the selected display mode appears.
2
Use the "Down" (2) key to scroll to the
next display value
Scroll back using the "Up" key (1)
(1)
(2)
Display values in
the ‘Day / Year /
Total’ display
modes
Output energy
energy supplied during the monitored period (kWh / MWh)
Due to the variety of different monitoring systems, there can be deviations between the
readings of other metering instruments as compared to the readings from the inverter. For
determining the energy supplied to the grid, only the readings of the calibrated meter supplied by the electric utility company are relevant.
Yield
money earned during the monitored period (set currency and price per kWh in setup menu)
As was the case for the output energy, readings may differ from those of other instruments.
‘The Setup Menu’ section describes how to set the currency and rate for the energy supplied. The factory setting depends on the respective country-specific setting.
100
u
CO2 reduction
CO2 emissions saved during the monitored period
(lb / T; T = tons)
The area for unit display switches between ‘lb’ or ‘T’ and ‘CO2.’
The CO2 meter gives an indication of CO2 emissions that would be released during the
generation of the same amount of electricity in a combustion power plant.
This factory setting for this is 1.3 lb/kWh.
Maximum output power
highest output power during the observation period (watts)
Maximum grid voltage
highest reading of grid voltage (V) during
the observation period
Minimum grid voltage
lowest reading of grid voltage (V) during
the observation period
Maximum solar module voltage
highest reading of solar module voltage
(V) during the observation period
Operating hours
indicates how long the inverter has been
operating
(HH:MM)
Duration of operation is shown in hours and minutes up to 999 h and 59 min (display:
‘999:59’). After that only full hours are displayed.
Although the inverter does not operate during the night, all sensor data are recorded
around the clock.
Options
If the DatCom component for the required options are not available, the message "N.A."
(not available) is shown.
101
The Setup Menu
Presetting
The inverter is pre-configured and ready to use. No manual control is necessary for feeding
the power it generates into the grid.
The setup menu allows easy readjustment of the inverter's preset parameters to your
needs.
Accessing the
Setup Menu
1
Switch to the menu level (press the
"Menu" key)
2
Select the "Setup" (1) mode using the
"Left" (4) or "Right" (3) keys
3
Press "Enter" (2)
(1)
(4)
(3)
(2)
The Setup Menu’s first menu item "STANDBY" is shown.
102
Example: "STANDBY" menu item
Example: "CONTRAST" menu item
u
Scrolling through
Menu Items
(1)
(1)
(2)
(2)
1
Access the Setup menu
2
Scroll through the available menu items using the "Up" (1) and "Down" (2) keys
103
Menu Items in the Setup Menu
STANDBY
Manual activation / deactivation of Standby
operation using the "Enter" key
Unit
-
Setting range
Enter
Factory setting
Automatic operation of feeding energy into the grid (Standby
deactivated)
-
The power electronics are switched off in standby mode. No power is fed into the grid.
The Operating Status LED flashes orange.
The orange flashing Operating Status LED stops at dusk.
After the subsequent sunrise, the power supply operation into the grid is resumed automatically (after completion of the startup phase the LED is illuminated green).
Grid supply operation can be resumed at any time whenever the LED is flashing orange (deactivate "STANDBY").
If the Standby mode is activated by pressing the "Enter" key, the display alternates between "STANDBY" and "Enter:"
To maintain Standby operation:
Press the "Esc" key
To end Standby operation:
Press the "Enter" key
CONTRAST
Contrast setting on LCD display
Unit
-
Setting range
0-7
Factory setting
7
Since contrast depends on temperature, it may be necessary to adjust the "CONTRAST"
menu item when ambient conditions change.
104
LIGHT MODE
u
Initial setting for display illumination.
Unit
-
Setting range
AUTO / ON / OFF
Factory setting
AUTO
AUTO:
The display illumination will stop 30 seconds after the last time
a key has been pressed.
ON:
The display will remain illuminated whenever power is supplied
to the grid.
OFF:
The display illumination will be permanently off.
IMPORTANT! The "LIGHT MODE" setting only relates to the display's background illumination. The LCD display will still remain on during operation. Its energy consumption is less
than one mW (1/1000 W).
CASH
Setting of currency and rate for invoicing
the energy supplied
Unit
-
Display area
Currency / Charge rate/kWh
Factory setting
USD
CO2
Setting of CO2 reduction factor
Unit
lb/kWh, T/kWh
Setting range
00,01 - 99,99
Factory setting
1.3
105
YIELD
Setting
an OFFSET value for the total energy
display
a measurement correction value for
the Day, Year and Total energy display
Setting range
OFF SET / CALI.
OFF SET
Preset value for the output energy, added to the actual output energy (e.g., transfer value
upon replacement of the inverter) and the SI prefix
Unit
Wh / kWh / MWh
Setting range
5-digit + k... / M...
1 kWh = 1000 Wh
1 MWh = 1000000 Wh
Factory setting
0
CALI.
Preset correction value, so that the data shown on the inverter display corresponds to the
calibrated data shown on the electric meter
Unit
%
Setting range
-5.0 - +5.0 in increments of 0.1
Factory setting
0
IG no.
Number setting (address) of the inverter in
a setup comprising multiple solar inverters
linked together
Unit
-
Setting range
01 - 99 (100th inverter = 00)
Factory setting
1
IMPORTANT! Each inverter must be assigned its own address when connecting several
inverters in a data communications system.
106
Indicates status of data transmission, resets the Personal Display Card and Interface Card
Setting range
Displays OK COM or ERROR COM;
PDCD RST / IFCD RST
OK COM / ERROR COM
Displays data communication available via Solar Net or an error that occurred in data communication
PDCD RST
Resets the Fronius Personal Display Card option
IFCD RST
Resets the Fronius Interface Card option
TIME
Date and time setting
Unit
DDMMYYYY, HH:MM
Setting range
Date / Time
Factory setting
-
IMPORTANT! The "TIME" menu item is only supported when the Fronius Datalogger option is installed.
STATE PS
Status display of power stage sets; the last
error that has occurred can be displayed
IMPORTANT! Due to the low level of irradiance early in the morning and in the evening,
the status codes 306 (power low) and 307 (DC low) are displayed routinely at these times
of day. These status messages do not indicate any kind of fault.
107
u
DAT COM
VERSION
displays the version number and serial
number of the electronic components (e.g.,
IG Brain, power stage sets, display, country
setup)
Unit
-
Display area
MAIN CTRL / LCD / PS (PS00, PS01, PS02) / SETUP
Factory setting
-
MAINCTRL
Version information of the IG Brain unit (inverter controller)
LCD
Version information of the display
PS
Version information of the power stage sets (PS00 - max. PS02)
SETUP
Display of the currently set country setup
You can display the current country setup (2 - 3 letters) by
pressing the ‘Enter’ key, e.g., ‘US’ for USA country setup;
You can exit the country setup display by pressing ‘Esc’
108
Setting Menu
Items - General
1
Access the Setup menu
2
Use the "Up" or "Down" keys to select the desired menu item
3
Press the "Enter" key
The first digit of a value to be set flashes:
The available settings are displayed:
4
Use the "Up" and "Down" keys to select a value for the first digit
4
Use the "Up" and "Down" keys to select the desired setting
5
Press the "Enter" key
5
Press the "Enter" key to save and apply the selection.
The second digit of the value flashes.
6
Press the "Esc" key to not save the
selection.
Repeat steps 4 and 5 until ...
the entire value flashes.
7
Press the "Enter" key
8
Repeat steps 4 - 6 for units or other
values to be set until the unit or value
flashes.
9
Press the "Enter" key to save and apply the changes.
Press the "Esc" key to not save the
changes.
The currently selected menu item is displayed.
Examples of Setting and Displaying Menu Items
The currently selected menu item is displayed.
The following examples describe how to set and display menu items:
Setting the Currency and Charge Rate
Displaying and Setting Parameters in the "DATCOM" Menu Item
Setting Time and Date
Setting the currency and rate
109
1
Select the ‘CASH’ menu item
2
Press the ‘Enter’ key
u
Setting and Displaying Menu Items
The currency is display, factory setting =
‘USD’;
The first character flashes.
3
Use the ‘Up’ and ‘Down’ keys to select
a letter for the first character
4
Press the ‘Enter’ key
The second character flashes.
5
Use the ‘Up’ and ‘Down’ keys to select
a letter for the second character
6
Press the ‘Enter’ key
The third character flashes.
7
Use the ‘Up’ and ‘Down’ keys to select
a letter for the third character
8
Press the ‘Enter’ key
The set currency flashes.
9
Press the ‘Enter’ key
The rate for energy supplied is now displayed in kWh / currency, factory setting =
0.14 USD / kWh;
The first digit flashes.
10 Use the ‘Up’ and ‘Down’ keys to select
a value for the first digit (e.g., 0)
11 Press the ‘Enter’ key
110
12 Use the ‘Up’ and ‘Down’ keys to select
a value for the second digit (e.g., 0)
13 Press the ‘Enter’ key
The first digit after the decimal point flashes.
14 Use the ‘Up’ and ‘Down’ keys to select
a value for the first digit after the decimal point (e.g., 4)
15 Press the ‘Enter’ key
The second digit after the decimal point
flashes.
16 Use the ‘Up’ and ‘Down’ keys to select
a value for the second digit after the
decimal point (e.g., 8)
The values that can be set range from
00.01 to 99.99.
17 Press the ‘Enter’ key
The set rate for energy supplied flashes.
18 Press the ‘Enter’ key
The currency and the rate for supplied energy are now accepted.
19 Press the ‘Esc’ key to exit the ‘CASH’
menu item
Displaying and
Setting Parameters in the "DATCOM" Menu Item
1
Select menu item ‘DATCOM’
2
Press the ‘Enter’ key
The following displays depend on
whether
111
-
a data connection is available
-
a data connection is faulty or an
option is not installed
u
The second digit flashes.
Available data connection
If there is a data connection available, ‘OKCOM’ is shown.
3
Use the ‘Down’ key to select available
data:
e.g. Reset Personal Display Card (‘PDCDRST’) ...
... or Reset Interface Card (‘IFCDRST’)
4
Press the ‘Enter’ key
‘PDCD DONE‘...
...or...
‘IFCDDONE’ is shown
5
Press the ‘Esc’ key 2x to exit menu
item ‘DATCOM’
Data connection faulty or an option is not installed
If there is a faulty data connection or options are not installed ‘ERRORCOM’ is
shown.
3
112
Press the ‘Esc’ key to exit menu item
‘DATCOM’
1
Select the "TIME" menu item
2
Press the "Enter" key
The date is displayed (DD.MM.YYYY), the
first digit for the day flashes.
3
Use the "Up" and "Down" keys to
select a value for the first day digit
4
Press the "Enter" key
The second digit for the day flashes.
5
Use the "Up" and "Down" keys to
select a value for the second day digit
6
Press the "Enter" key
The first digit for the month flashes.
7
Use the "Up" and "Down" keys to
select a value for the first month digit
8
Press the "Enter" key
The second digit for the month flashes.
9
Use the "Up" and "Down" keys to
select a value for the second month digit
10 Press the "Enter" key
The first digit for the year flashes.
11 Use the "Up" and "Down" keys to
select a value for the first year digit
12 Press the "Enter" key
113
u
Setting Time and
Date
The second digit for the year flashes.
13 Use the "Up" and "Down" keys to
select a value for the second year digit
14 Press the "Enter" key
The third digit for the year flashes.
15 Use the "Up" and "Down" keys to
select a value for the third year digit
16 Press the "Enter" key
The fourth digit for the year flashes.
17 Use the "Up" and "Down" keys to
select a value for the fourth year digit
18 Press the "Enter" key
The set date then flashes.
19 Press the "Enter" key
The time is displayed (HH:MM), the first digit for the hour flashes.
20 Use the "Up" and "Down" keys to
select a value for the first hour digit
21 Press the "Enter" key
The second digit for the hour flashes.
22 Use the "Up" and "Down" keys to
select a value for the second hour digit
23 Press the "Enter" key
114
24 Use the "Up" and "Down" keys to
select a value for the first minutes digit
25 Press the "Enter" key
The second digit for the minutes flashes.
26 Use the "Up" and "Down" keys to
select a value for the second minutes
digit
27 Press the "Enter" key
The set time flashes.
28 Press the "Enter" key to apply the time
29 Press the "Esc" key to exit the "TIME"
menu item
115
u
The first digit for the minutes flashes.
116
Troubleshooting and Maintenance
Displaying Status Codes
Your inverter is equipped with a self diagnostic system that automatically identifies a large
number of possible operation issues by itself and displays them on the screen. This enables you to know immediately if there are any malfunctions in the inverter, the photovoltaic
system or any installation or operating errors.
Whenever the self diagnostic system has identified a particular issue, the respective status
code is shown on the screen.
IMPORTANT! Status codes may sometimes appear briefly as a result of the control response from the inverter. If it subsequently continues to operate normally, there has not
been a system error.
Normal Operation
Status Codes
The open circuit voltage of the solar modules is too low.
As soon as the open circuit voltage exceeds 290 V, the inverter starts synchronizing with
the grid (display shows "SYNC AC").
The total power output of the solar modules is insufficient.
After a short time the inverter resumes grid synchronization (display shows "SYNC AC").
Total Failure
If the display remains dark for a long time after sunrise:
Check the open circuit voltage of the solar modules at the connections of the inverter:
Open circuit voltage < 265 V ... error in the photovoltaic system
Open circuit voltage > 265 V ... may indicate a basic fault in the inverter. In this case,
notify a Fronius-trained service engineer.
119
u
Status Diagnosis and Troubleshooting
Status Codes on
Fronius IG Plus
with Several Power Stage Sets
A special status diagnostic is run if an error occurs in an inverter with several power stage
sets.
It is also possible to call up status codes even if there is no actual error in existence. This
form of status polling may be found in the section "The Setup Menu."
Display during normal operation
When there is an error in one of the two power stage sets, the display flashes between
"STATE" and the corresponding status
code
(e.g., "STATE 515")
and
"ENTER"
-
Press the "Enter" key twice
-
The status display of the power stage
sets "STATE PS" appears
Press the "Enter" key
-
Class 1 Status
Codes
Class 1 status codes are typically temporary. Their cause lies in the public grid.
The initial response of the inverter is to disconnect itself from the grid. The grid is subsequently checked for the stipulated monitoring period. If after the end of this period no further defect is identified, your inverter resumes operating and feeding power into the grid.
120
1x2
AC voltage too high
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
1x3
AC voltage too low
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
1x5
AC frequency too high
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
1x6
AC frequency too low
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
1x7
No AC grid detected
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
121
u
IMPORTANT! The 2nd position x defines the exact network point for the following status
codes:
0 = several / all 3 phases
1 = L1
2 = L2
3 = L3
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
108
Islanding detected
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Should the status code persist, you should contact your system
installer
109
General grid error
This error is always displayed first for grid errors. After reviewing all power stage sets, the
grid error is specified in more detail: 1x1 / 1x4 or the display remains at "109" (e.g., when
2 phases report "104" and one phase "101")
Behavior
Grid conditions are thoroughly tested and as soon as they are
again within the permissible range, the inverter will resume
feeding power into the grid.
Remedy
Check grid connections and fuses
Should the status code persist, you should contact your system
installer
Class 2 Status
Codes
Status codes of class 2 are typically temporary. Their cause lies in the grid.
The first reaction of the inverter is to disconnect from the grid. Subsequently, the grid will
be checked for the duration of the observation period stipulated. If after the end of this period no further defect is identified, the inverter resumes operating and feeding power into
the grid.
IMPORTANT! The 2nd position x defines the exact network point for the following status
messages:
0 = several / all 3 phases
1 = L1
2 = L2
3 = L3
2x2
Grid voltage exceeds admissible limits
Behavior
As soon as the grid voltage has returned to admissible range,
the inverter resumes feeding power into the grid.
Remedy
Check grid voltage; if the status code persists you should contact your electrical contractor
122
u
2x3
Grid voltage below admissible limits
Behavior
As soon as the grid voltage has returned to admissible range,
the inverter resumes feeding power into the grid.
Remedy
Check grid voltage, if the status code persists you should contact your electrical contractor
207
No grid voltage detected
Behavior
As soon as the grid conditions have returned to admissible
range, the inverter resumes feeding power into the grid.
Remedy
Check grid connections and fuses; if the status code does not
disappear you should contact your electrical contractor
Class 3 Status
Codes
Class 3 comprises status codes that may
appear during power feed-in mode that do
not cause a permanent interruption of the
operation of feeding power into the grid.
After automatic disconnection from the grid and waiting for its conditions to return to those
stipulated, your inverter will try to resume feed-in operation.
301
Overcurrent (AC)
Behavior
Short interruption of power feeding into the grid, caused by
overcurrent
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
Should the status code persist, you should contact your system
installer
302
Overcurrent (DC)
Behavior
Short interruption of power feeding into the grid, caused by
overcurrent
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
Should the status code persist, you should contact your system
installer
303
Over-temperature buck converter
123
Behavior
Short interruption of power feeding into the grid caused by overtemperature
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
If this status code keeps recurring, contact your system installer
304
Over-temperature cooling element
Behavior
Short interruption of power feeding into the grid caused by overtemperature.
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
If this status code keeps recurring, contact your system installer
305
No power transfer to grid possible
Behavior
Continual interruption of grid feed operation
Remedy
Should the status code persist, you should contact your system
installer
"POWER LOW" (306)
Intermediate circuit voltage has dropped below permissible threshold value for feed in.
This error is shown on the inverter in plain text.
Behavior
Short interruption of power feeding into the grid.
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
If this status code keeps recurring, contact your system installer
"DC LOW" (307)
DC input voltage is too low for feed in.
This error is shown on the inverter in plain text.
Behavior
Short interruption of power feeding into the grid.
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
If this status code keeps recurring, contact your system installer
308
Intermediate circuit voltage too high.
Behavior
Short interruption of power feeding into the grid.
The inverter returns to the startup phase.
Remedy
Fault is rectified automatically
If this status code keeps recurring, contact your system installer
124
Class 4 status codes may require the intervention of a trained Fronius service technician.
401
No internal communication with power stage set
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid
Remedy
Check grid connections and fuses
If status code persists: Contact a Fronius-trained service technician
402
Communication with EEPROM not possible
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid.
Remedy
If status code persists: Contact a Fronius-trained service technician
403
EEPROM faulty
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid.
Remedy
If status code persists: Contact a Fronius-trained service technician
406
One or both temperature sensors are defective
Description
The inverter disconnects from the grid for safety reasons.
Remedy
If status code persists: Contact a Fronius-trained service technician
407
Temperature sensor at cooling element defective
Description
The inverter disconnects from the grid for safety reasons.
Remedy
If status code persists: Contact a Fronius-trained service technician
408
Direct current feed in
Description
The inverter disconnects from the grid for safety reasons.
Remedy
If status code persists: Contact a Fronius-trained service technician
125
u
Class 4 status
codes
412
The "fixed voltage" setting has been selected instead of MPP voltage operation and the
voltage is set to too low a value, or DC voltage exceeds allowable limits.
Description
Fixed voltage lower than the current MPP voltage.
Remedy
If the status code persists, you should contact a Fronius-trained
service technician, or remove excess solar modules so DC voltage fits within inverter limits.
If status code persists: Contact a Fronius-trained service technician
413
Control problems
Description
The inverter briefly disconnects from the grid, if AC voltage or
frequency are out of range.
Remedy
If status code persists: Contact a Fronius-trained service technician
414
EEPROM faulty
Description
Memory deleted
Remedy
If status code persists: Contact a Fronius-trained service technician
416
Communication with IG Brain not possible.
Description
The Operating Status LED lights up orange, then the inverter attempts a restart.
Remedy
If status code persists: Contact a Fronius-trained service technician
417
Two power stage sets have the same PCB number
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED
Remedy
If status code persists: Contact a Fronius-trained service technician
419
Two or more power stage sets with an identical software serial number detected.
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED
Remedy
If status code persists: Contact a Fronius-trained service technician
126
PCB number has been set incorrectly
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
425
Communication with the power stage set is not possible
Description
The Operating Status LED lights up orange, then the inverter attempts a restart.
Remedy
If status code persists: Contact a Fronius-trained service technician
431
All power stage sets are in boot mode
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
Update firmware using Bootloader or Fronius Solar.update/IG
Plus
Switches between SLAVE / DC LOW or SLAVE / POWER LOW (439)
The MPP master power stage set is switched off because of an error in a slave power
stage set (in the balance mode).
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
442
No phase master for a phase
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
443
Energy transfer not possible
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
445
Invalid power stage set configuration
127
u
421
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
446
Internal communication error with the NL-MON plug-in card
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid
Remedy
Check grid connections and fuses;
If status code persists: Contact a Fronius-trained service technician
447
The NL-MON plug-in card has interrupted grid monitoring
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid
Remedy
If status code persists: Contact a Fronius-trained service technician
448
The neutral conductor N is not connected
Description
The inverter disconnects from the grid for safety reasons.
Remedy
If status code persists: Contact a Fronius-trained service technician
450
The monitoring of the power stage set main processor ‘Guard’ is active
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
451
The EEPROM Guard Control is defective
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
452
Communication between ‘Guard’ and the digital signal processor (DSP) has been interrupted
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
128
If status code persists: Contact a Fronius-trained service technician
453
Error in grid voltage recording
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
454
Error in grid frequency recording
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
455
Reference power source for AC measurement is operating outside of tolerances
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
456
Error during anti-islanding test
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
457
Grid relay stuck
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
460
Reference power source for the digital signal processor (DSP) is operating outside of tolerances
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
129
u
Remedy
461
Error in DSP data memory
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
464
Display error
The software and/or hardware versions of the display and IG Brain are not compatible.
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
Update firmware using Bootloader or Fronius Solar.update/IG
Plus
465
Display error
The UI command sent from the IG Brain is not recognized by the present display version.
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
If status code persists: Contact a Fronius-trained service technician
466
Display error
The display was not detected.
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
Check the display for damage, connect display, check ribbon
wire for damage, check IG Brain for damage
If status code persists: Contact a Fronius-trained service technician
467
The display has not received a start command from the IG Brain for longer than 6 s.
Description
The inverter will automatically attempt to connect again and, if
possible, resume feeding power into the grid.
Remedy
If status code persists: Contact a Fronius-trained service technician
469
Throttle connected to wrong poles
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
130
Properly connect throttle
If status code persists: Contact a Fronius-trained service technician
470
The buck converter relay does not open at high DC voltage
Description
The inverter stops feeding power into the grid, the display
shows a critical error via a red Operating Status LED.
Remedy
Check system configuration
If status code persists: Contact a Fronius-trained service technician
472
Ground fault detected
Description
Inverter is blocked from feeding energy into the grid.
Remedy
Replace GFDI fuse.
Class 5 status
codes
Class 5 status codes generally do not impair the operation of feeding power into the
grid. They will be displayed until the service
code is acknowledged by pressing a key
(the inverter, however, continues working
normally in the background).
press any key
error message disappears
501
One of the two fans is defective
Description
Low power generation because the temperature in the unit is
too high.
Remedy
If status code persists: Contact a Fronius-trained service technician
504
No Solar Net communication possible
Description
Inverter address issued twice.
Remedy
Change inverter address (section: ‘The setup menu’)
Description
The Solar Net components required are in the inverter: However, communication is still not currently possible.
Remedy
Status code will disappear after changing the inverter address
505
EEPROM faulty
131
u
Remedy
Description
Data from the Setup menu are lost.
Remedy
Remedied automatically
506
EEPROM faulty
Description
Data from the ‘Total’ menu are lost.
Remedy
Remedied automatically
507
EEPROM faulty
Description
Data from the ‘Day’ / ‘Year’ menu are lost.
Remedy
Remedied automatically
508
Inverter address incorrect
Description
Address for data communication is no longer saved.
Remedy
Set address again
509
24h no feed in
Description
Example: solar modules covered with snow
Remedy
Example: remove snow from solar modules
510
EEPROM faulty
Description
SMS settings were restored to default.
Remedy
If necessary, reconfigure SMS
511
EEPROM faulty
Description
Sensor card settings were restored to default
Remedy
If necessary, reconfigure metering channels
512
Too many power stage sets in the system
Description
Too many power stage sets have been detected in the system.
Remedy
If status code persists: Contact a Fronius-trained service technician
513
Power stage set in boot mode
132
One or more power stage sets cannot be activated, because
they are in boot mode.
Remedy
Update power stage set firmware
514
No communication with one of the power stage sets
Description
Warning message from one of the power stage sets, second
power stage set working normally
Remedy
If status code persists: Contact a Fronius-trained service technician
515
Faulty plug connections
Description
Temperature sensor on cooling element faulty or not connected
properly.
Remedy
If status code persists: Contact a Fronius-trained service technician
516
Status codes present for one of the power stage sets.
Description
It is not possible to activate all power stage sets
Remedy
Carry out analysis. For more information, see the ‘The setup
menu’ section. If status code persists: Contact a Fronius-trained
service technician
517
Change of master has taken place.
Description
Transformer not connected / not plugged in
Bridge short-circuit
Detection of intermediate circuit voltage damaged
Remedy
Check possible errors referred to in ‘Description.’ If status code
persists: Contact a Fronius-trained service technician
550
String fuse defective.
Description
One or more string fuses are defective.
Remedy
Measure string fuses and replace any that are defective
550
Jumper set incorrectly
Description
The jumper on the C-Box PC board was not reset to the ‘SMon’
position after the solar module strings were checked
Remedy
Set the jumper on the C-Box PC board to the ‘SMon’ position
133
u
Description
553
Phase master deactivated due to frequently occurring errors
Description
A reintegration of the power stage set into the Mix network will
be attempted at a later time.
Remedy
If status code persists: Contact a Fronius-trained service technician
554
NL-Mon EEPROM error
Description
Default set switch off limits were restored automatically.
Remedy
System-specific changes in the ‘Advanced’ service menu have
to be redone;
If status code persists: Contact a Fronius-trained service technician
558
Feature deactivated (e.g., inverter control via the Fronius Power Control Box option)
Customer Service
Description
A feature had to be deactivated (e.g., after component replacement).
The status message is no longer displayed after the next DC
disconnect.
Remedy
Confirm error, update firmware using Bootloader or Fronius Solar.update/IG Plus, if required
(The inverter will also operate problem-free without updating the
firmware)
IMPORTANT! Please contact your Fronius dealer or a Fronius-trained service technician if
an error appears frequently or for a long period of time
an error appears that is not listed in the tables
134
Safety
u
Maintenance
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
The DC main switch is only used to switch off power to the power stage set. When
the DC main switch is turned off, the connection area is still energized.
These servicing instructions are for use by qualified personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that specified in the
operating instructions.
WARNING! An electric shock can be fatal. Danger from residual voltage from capacitors.
You must wait until the capacitors have discharged. Discharge takes 5 minutes.
General
The inverter is designed so that it does not require additional maintenance. However, there
are a few points to keep in mind during operation to ensure that the inverter functions optimally.
Operation in
Dusty Environments
When operating the inverter in extremely
dusty environments:
Remove the fan cover and clean the integrated fly screen as required
1
3
2
Opening Fronius
IG Plus for service/maintenance
Procedure for opening the inverter for service or maintenance:
1
Disconnect AC and DC supply from the inverter
2
Open the connection area
3
Turn off DC main switch
135
4
Allow the capacitors to discharge (5 minutes)
5
Remove metal covers
6
Remove the plastic dividers
7
Remove string fuses
8
Disconnect DC wires
9
Disconnect AC wires
136
Safety
u
Replacing String Fuses
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
Never work with live wires! Prior to all connection work, make sure that the
AC and DC wires are not charged.
The DC main switch is used only to switch off power to the power stage set.
When the DC main switch is turned off, the connection area is still energized.
These servicing instructions are for use by qualified personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that specified in the
operating instructions.
WARNING! An electric shock can be fatal. Danger from residual voltage from capacitors.
You must wait until the capacitors have discharged. Discharge takes 5 minutes.
Preparation
NOTE! Disconnected AC and DC supply from the inverter.
1
2
9
5
8
3 4
2
1
1
2
*)
Remove all fixing screws from any available option cards.
137
7
6
*)
3
Lift up plastic dividers in the area of the
string fuses
1
Replacing string
fuses
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules.
Never remove a fuse while it is under load.
Fuse covers are for installation purposes only. They offer no protection
against contact.
1
Test the fuse holder at the terminal for continuity
NOTE! Only use fuses for solar modules that meet the criteria for the proper selection of string fuses.
Fuse data: Diameter 0.406 x 1.378 - 1.496 in. (10.3 x 35 - 38 mm), 600 V DC
2
1
2
3
4
DC+
3
After replacing the fuse:
Find out and correct the cause for the defective fuse
138
1
Return plastic dividers to their proper position
IMPORTANT Make sure that the plastic dividers are underneath any data communication wires that are present.
1
3
2
1
2
5
6
4
3
8
7
*)
2
1
*)
Attach all fixing screws from any available option cards.
139
u
Closing Fronius
IG Plus
Replacing GFDI fuse
Safety
WARNING! An electric shock can be fatal. Danger from grid voltage and DC voltage from solar modules.
The connection area should only be opened by a licensed electrician.
Never work with live wires! Prior to all connection work, make sure that the
AC and DC wires are not charged.
The DC main switch is used only to switch off power to the power stage set.
When the DC main switch is turned off, the connection area is still energized.
These servicing instructions are for use by qualified personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that specified in the
operating instructions.
WARNING! An electric shock can be fatal. Danger from residual voltage from capacitors.
You must wait until the capacitors have discharged. Discharge takes 5 minutes.
WARNING! An electric shock can be fatal. Normally grounded conductors may
be ungrounded and energized when a ground fault is indicated. The ground fault
has to be repaired before operation is resumed.
Preparation
NOTE! Disconnect AC and DC supply from the inverter.
1
2
9
5
8
3 4
2
1
1
2
*)
Remove all fixing screws from any available option cards.
140
7
6
*)
1
1
Replacing GFDI
fuse
WARNING! An electric shock can be fatal. Danger from DC voltage from solar
modules.
Never remove a fuse while it is under load.
Fuse covers are for installation purposes only. They offer no protection
against contact.
1
Test the fuse holder at the terminal for continuity
NOTE! Only use fuses that comply with the following data for the GFDI fuse:
Diameter 0.406 x 1.378 - 1.496 in. (10.3 x 35 - 38 mm), 1 A, 600 V DC
2
1
2
3
1
4
4
3
After replacing the fuse:
Find out and correct the cause for the defective fuse
141
u
If present, disconnect data communication wire from the option cards.
3
Closing Fronius
IG Plus
1
Connect available data communication
wire to the option cards.
1
2
2
IMPORTANT! Make sure that the plastic dividers are underneath any data communication
wires that are present.
2
3
1
2
5
6
4
3
8
7
*)
2
1
*)
Attach all fixing screws from any available option cards.
142
Appendix
Fronius IG Plus
3.0-1
u
Technical Data
Input data
Recommended PV power
2500 - 3450 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
8.3 A
Max. input current
14 A
Max. array short circuit current
18 A
Output data
Nominal output power (Pnom)
3000 W
Pnom at +122 °F (50 °C)
3000 W
Max. output power
3000 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
14.4 A AC
12.5 A AC
10.8 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
16.4 A
14.2 A
12.3 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
222 A / 47 µs
1
assured by electrical design of the inverter
145
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,0 %
95.5 %
95.5 %
<1W
Consumption during operation
8W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
24.84 x 17.09 x 9.61 in.
631 x 434 x 244 mm
Power stage set weight
31 lbs.
14 kg
Connection area weight
24 lbs.
11 kg
Shipping dimensions w x h x d
31.02 x 20.28 x 14.02 in.
788 x 515 x 356 mm
Shipping weight
59 lbs.
27 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
146
Input data
Recommended PV power
3200 - 4400 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
10.5 A
Max. input current
17.8 A
Max. array short circuit current
22 A
Output data
Nominal output power (Pnom)
3800 W
Pnom at +122 °F (50 °C)
3800 W
Max. output power
3800 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
18.3 A AC
15.8 A AC
13.7 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
18.5 A
18.0 A
15.6 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
222 A / 47 µs
1
assured by electrical design of the inverter
147
u
Fronius IG Plus
3.8-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,0 %
95.5 %
95.5 %
<1W
Consumption during operation
8W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
24.84 x 17.09 x 9.61 in.
631 x 434 x 244 mm
Power stage set weight
31 lbs.
14 kg
Connection area weight
24 lbs.
11 kg
Shipping dimensions w x h x d
31.02 x 20.28 x 14.02 in.
788 x 515 x 356 mm
Shipping weight
59 lbs.
27 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
148
Input data
Recommended PV power
4250 - 5750 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
13.8 A
Max. input current
23.4 A
Max. array short circuit current
29 A
Output data
Nominal output power (Pnom)
5000 W
Pnom at +122 °F (50 °C)
5000 W
Max. output power
5000 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
24.0 A AC
20.8 A AC
18.1 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
27.3 A
23.7 A
20.5 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
273 A / 72 µs
1
assured by electrical design of the inverter
149
u
Fronius IG Plus
5.0-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,5 %
95.5 %
96.0 %
<1W
Consumption during operation
15 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
36.46 x 17.09 x 9.61 in.
926 x 434 x 244 mm
Power stage set weight
57 lbs.
26 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm
Shipping weight
90 lbs.
41 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
150
Input data
Recommended PV power
5100 - 6900 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
16.6 A
Max. input current
28.1 A
Max. array short circuit current
35 A
Output data
Nominal output power (Pnom)
6000 W
Pnom at +122 °F (50 °C)
6000 W
Max. output power
6000 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
28.8 A AC
25.0 A AC
21.7 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
32.8 A
28.4 A
24.6 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
273 A / 72 µs
1
assured by electrical design of the inverter
151
u
Fronius IG Plus
6.0-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,5 %
96.0 %
96.0 %
<1W
Consumption during operation
15 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
36.46 x 17.09 x 9.61 in.
926 x 434 x 244 mm
Power stage set weight
57 lbs.
26 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm
Shipping weight
90 lbs.
41 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
152
Input data
Recommended PV power
6350 - 8600 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
20.7 A
Max. input current
35.1 A
Max. array short circuit current
44 A
Output data
Nominal output power (Pnom)
7500 W
Pnom at +122 °F (50 °C)
7500 W
Max. output power
7500 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
36.1 A AC
31.3 A AC
27.1 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
37.0 A
35.5 A
30.7 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
273 A / 72 µs
1
assured by electrical design of the inverter
153
u
Fronius IG Plus
7.5-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,0 %
95.5 %
96.0 %
<1W
Consumption during operation
15 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
36.46 x 17.09 x 9.61 in.
926 x 434 x 244 mm
Power stage set weight
57 lbs.
26 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm
Shipping weight
90 lbs.
41 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
154
Input data
Recommended PV power
8500 - 11500 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
27.6 A
Max. input current
46.7 A
Max. array short circuit current
58 A
Output data
Nominal output power (Pnom)
9995 W
Pnom at +122 °F (50 °C)
9995 W
Max. output power
99950 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
48.1 A AC
41.7 A AC
36.1 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
54.6 A
47.4 A
40.9 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
568 A / 104 µs
1
assured by electrical design of the inverter
155
u
Fronius IG Plus
10.0-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,0 %
95.5 %
96.0 %
<1W
Consumption during operation
22 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
48.07 x 17.09 x 9.61 in.
1221 x 434 x 244 mm
Power stage set weight
82 lbs.
37 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in. +
17.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm +
450 x 515 x 356 mm
Shipping weight
114 lbs.
52 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
156
Input data
Recommended PV power
9700 - 13100 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
31.4 A
Max. input current
53.3 A
Max. array short circuit current
67 A
Output data
Nominal output power (Pnom)
11400 W
Pnom at +122 °F (50 °C)
11400 W
Max. output power
11400 W
Nominal AC output voltage
208 V / 240 V / 277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
at 277 V
183 - 229 V
211 - 264 V
244 - 305 V
Adjustment range for voltage,
at 208 V
at 240 V
at 277 V
105 - 248 V
120 - 287 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
at 277 V
Number of phases
54.8 A AC
47.5 A AC
41.2 A AC
1
Maximum output current
at 208 V
at 240 V
at 277 V
55.5 A
54.0 A
46.7 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
568 A / 104 µs
1
assured by electrical design of the inverter
157
u
Fronius IG Plus
11.4-1
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
at 277 V
Night consumption
95,5 %
96.0 %
96.0 %
<1W
Consumption during operation
22 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
48.07 x 17.09 x 9.61 in.
1221 x 434 x 244 mm
Power stage set weight
82 lbs.
37 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in. +
17.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm +
450 x 515 x 356 mm
Shipping weight
114 lbs.
52 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
158
Input data
Recommended PV power
9700 - 13100 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
31.4 A
Max. input current
53.3 A
Max. array short circuit current
67 A
Output data
Nominal output power (Pnom)
11400 W
Pnom at +122 °F (50 °C)
11400 W
Max. output power
11400 W
Nominal AC output voltage
208 V / 240 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 208 V
at 240 V
183 - 229 V
211 - 264 V
Adjustment range for voltage,
at 208 V
at 240 V
105 - 248 V
120 - 287 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 208 V
at 240 V
Number of phases
31.6 A AC
27.4 A AC
3
Maximum output current
at 208 V
at 240 V
32.0 A
31.2 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
476 A / 623 µs
1
assured by electrical design of the inverter
159
u
Fronius IG Plus
11.4-3
General data
Maximum efficiency
96.2 %
CEC efficiency
at 208 V
at 240 V
Night consumption
95,0 %
95.5 %
<1W
Consumption during operation
22 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
48.07 x 17.09 x 9.61 in.
1221 x 434 x 244 mm
Power stage set weight
82 lbs.
37 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in. +
17.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm +
450 x 515 x 356 mm
Shipping weight
114 lbs.
52 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
160
Input data
Recommended PV power
10200 - 13800 Wp
MPP voltage range
230 - 500 V DC
Max. input voltage
(at 1000 W/m² / 14 °C in an open circuit)
600 V DC
Nominal input voltage
390 V
Nominal input current
33.1 A
Max. input current
56.1 A
Max. array short circuit current
70 A
Output data
Nominal output power (Pnom)
12000 W
Pnom at +122 °F (50 °C)
12000 W
Max. output power
12000 W
Nominal AC output voltage
277 V
Grid voltage tolerance
+10 / -12 %
Operating AC voltage range default,
at 277 V
244 - 305 V
Adjustment range for voltage,
at 277 V
140 - 324 V
Voltage trip limit accuracy
1 % of nominal value
Voltage clearing times
0.016 - 4.25 s
Nominal output current
at 277 V
Number of phases
14.4 A AC
3
Maximum output current
at 277 V
16.4 A
Maximum continuous utility backfeed current *
0A
Synchronization in-rush current *
0A
Maximum output fault current / duration
Nominal output frequency
60 Hz
Operating frequency range
59.3 - 60.5 Hz
Adjustment range for frequency
Frequency trip limit accuracy
57.0 - 60.48 Hz
0.05 Hz
Frequency clearing times
0.016 - 300 s
Harmonic distortion
<3%
Power factor
*
777 A / 163 µs
1
assured by electrical design of the inverter
161
u
Fronius IG Plus
12.0-3
General data
Maximum efficiency
96.2 %
CEC efficiency
at 277 V
Night consumption
96 %
<1W
Consumption during operation
22 W
Cooling
Controlled forced ventilation
Degree of protection
NEMA 3R
Unit dimensions w x h x d
48.07 x 17.09 x 9.61 in.
1221 x 434 x 244 mm
Power stage set weight
82 lbs.
37 kg
Connection area weight
26 lbs.
12 kg
Shipping dimensions w x h x d
42.72 x 20.28 x 14.02 in. +
17.72 x 20.28 x 14.02 in.
1085 x 515 x 356 mm +
450 x 515 x 356 mm
Shipping weight
114 lbs.
52 kg
Permissible ambient temperature
(with 95% rel. humidity)
-4 °F - +122 °F
- 20 °C - +50 °C
Permitted storage temperature
(with 95% rel. humidity)
-4 °F - +140 °F
- 20 °C - +60 °C
Safety equipment
Ground fault protection
internal GFDI
(Ground Fault Detector/Interrupter)
Islanding protection
integrated
Protection against reverse polarity
integrated
Over temperature
output power derating /
active cooling
162
Field adjustable trip points
208 V
240 V
277 V
Nominal AC output voltage,
Line-to-Line, [V]
208
240
277
Operating AC voltage range default,
Line-to-Line, [V]
183-229
211-264
-
Adjustment range for voltage,
Line-to-Line, [V]
105-248
121-287
-
Voltage trip limit accuracy
Line-to-Line,
[% of nominal value]
1
1
-
Operating AC voltage range default,
Line-to-Neutral, [V]
106-132
106-132
244-305
Adjustment range for voltage,
Line-to-Neutral, [V]
61-143
61-143
138-324
Adjustment range for voltage
clearing time [s]
0.016-4.25
0.016-4.25
0.016-4.25
Voltage trip limit accuracy
Line-to-Neutral,
[% of nominal value]
1
1
1
Nominal output frequency [Hz]
60
60
60
Operating frequency range [Hz]
59.3-60.5
59.3-60.5
59.3-60.5
Adjustment range for frequency [Hz]
57.0-60.48
57.0-60.48
57.0-60.48
Adjustment range for frequency
clearing time [s]
0.016-300
0.016-300
0.016-300
Frequency trip limit accuracy
[ms]
16.66 (1)
16.66 (1)
16.66 (1)
Detection time [ms]
25 (2)
25 (2)
25 (2)
Reconnect time default [s]
300
300
300
Adjustment range for reconnect time
[s]
5-900
5-900
5-900
(1)
(2)
16.66 ms are equivalent to 1 cycle
25 ms are equivalent to 1.5 cycles
163
u
Field adjustable
trip points
Relevant Standards and Directives
Relevant standards and directives
Grid Failure
-
-
UL 1741-2005
IEEE 1547-2003
IEEE 1547.1
ANSI/IEEE C62.41
FCC Part 15 A & B
NEC Article 690
C22. 2 No. 107.1-01
(September 2001)
The standard measurement and safety procedures integrated into the inverter ensure that
the power feed is immediately interrupted in the event of a grid failure (shut-off by the utility
or damage to lines).
164
FRONIUS USA
limited 10-year
warranty
u
Warranty and Disposal
At Fronius, we have been designing and manufacturing high quality power electronics
equipment for over 60 years. And all our production facilities are ISO 9001 certified.
You will probably not encounter any service-related issues with your Fronius IG Plus Solar
Inverter.
However, in the unlikely event that within Ten (10) years from the original purchase you
discover a problem caused by defects in either workmanship or materials, we will see that
the device is either repaired or replaced.
Repair or replacement depends on Fronius’s evaluation of the issue and what we decide
makes the most sense according to the situation.
The warranty is based on the inverter’s serial number, allowing the warranty to be transferred to another owner if the Fronius IG Plus solar inverter remains installed in the original
installation location. Because the warranty is tied to the serial number, there is no paperwork to transfer the warranty to a new owner.
The Fronius IG Plus Solar Inverters are designed to withstand normal operating conditions
and typical wear and tear when the Fronius IG Plus Solar Inverter is used for its original
intent, in compliance with the Fronius IG Plus Installation and Operational Manual(s) supplied with the original equipment.
This warranty does not cover damages by improper installation or operation, misuse,
abuse, manipulation, alterations or repair attempts, accidents, fire, floods, acts of God, and
incidental or consequential damage caused by defects with other components of the solar
system. This warranty does not extend beyond the original cost of the Fronius IG Plus Solar Inverter.
Policy and procedure for warranty
returns and repairs
To obtain service you must follow this policy and procedure for warranty returns and repairs:
All returned Fronius IG Plus Solar Inverters require a Returned Merchandise Authorization Number (RMA).
A request for an RMA number requires the following information:
Proof of purchase in the form of the original invoice
Model number of the Fronius IG Plus solar inverter
Serial number of the Fronius IG Plus inverter
Description of the problem
Shipping address for the repaired or replaced equipment
All Fronius IG Plus solar inverters authorized for return by FRONIUS USA must be returned in their original shipping container or packaging providing equal protection.
Shipping costs to FRONIUS USA and back to the purchaser of repaired or replacement Fronius IG Plus Solar Inverters is the responsibility of FRONIUS USA
The warranty period of any repaired or replacement inverter is 12 months after shipment from FRONIUS USA or the original warranty period which ever is later
Labor costs related to uninstalling the defective equipment and re-installing the repaired or replacement equipment are not covered under the warranty.
Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty gives you specific legal rights, and you may also have other rights, which
vary from state to state.
FRONIUS USA LLC General Terms and Conditions apply.
165
Contact your local dealer or FRONIUS Service Partner for immediate handling of warranty
issues. For service assistance to resolve a Fronius IG Plus solar inverter problem, or for
product information please contact:
FRONIUS USA LLC - Solar Electronics Division
10421 Citation Drive, Suite 1100, Brighton, MI 48116
E-mail: [email protected]
http://www.fronius-usa.com
Disposal
Should your inverter be replaced at some future date, Fronius will accept the obsolete
equipment back and provide for its proper recycling.
u
Certificate of Compliance
Certificate:
2065918
Master Contract:
203213
Project:
2065918
Date Issued:
2008/09/09
Issued to:
Fronius International GmbH
Guenter Fronius Strasse 1
Wels-Thalheim, 4600
Austria
Attention: Mr. Josef Feichtinger
The products listed below are eligible to bear the CSA Mark shown
with adjacent indicator 'US'
Issued by:
Rob Hempstock, AScT.
Authorized by: Lindsay Clark, Product Group
Manager
PRODUCTS
CLASS 5311 89
- POWER SUPPLIES - Distributed Generation - Power Systems Equipment
- Certified to U.S. Standards
The 'US' indicator adjacent to the CSA Mark signifies that the product has been evaluated to the applicable ANSI/UL Standards, for use in the U.S.. This 'US' indicator
includes products eligible to bear the 'NRTL' indicator. NRTL, i.e. National Recognized Testing Laboratory, is a designation granted by the U.S. Occupational Safety and
Health Administration (OSHA) to laboratories which have been recognized to perform certification to U.S. Standards.
DQD 507 Rev. 2004-06-30
167
Certificate:
2065918
Master Contract:
203213
Project:
2065918
Date Issued:
2008/09/09
APPLICABLE REQUIREMENTS
DQD 507 Rev. 2004-06-30
168
u
169
Fronius Worldwide - www.fronius.com/addresses
a
Fronius International GmbH
4600 Wels-Thalheim, Günter-Fronius-Straße 1, Austria
E-Mail: [email protected]
http://www.fronius.com
u
Fronius USA LLC Solar Electronics Division
10421 Citation Drive, Suite 1100, Brighton, MI 48116
E-Mail: [email protected]
http://www.fronius-usa.com
Under http://www.fronius.com/addresses you will find all addresses of our sales branches and partner firms!
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