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Fronius IG-TL 3.0 / 3.6 / 4.0 / 4.6 / 5.0
Fronius IG-TL Dummy
Operating Instructions
Inverter for grid-connected photo-
EN-US
voltaic systems
42,0426,0074,EA 008-31072015
0
Dear reader,
Introduction 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.
EN-US
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Contents
Safety Instructions ..................................................................................................................................... 7
General Information 11
Protection of Persons and Equipment ....................................................................................................... 13
Safety.................................................................................................................................................... 13
Protection of Persons and Equipment .................................................................................................. 13
RCMU ................................................................................................................................................... 13
Monitoring the Grid ............................................................................................................................... 13
Warning notices affixed to the device ................................................................................................... 14
Information on Dummy Devices............................................................................................................ 16
Utilization in accordance with "intended purpose" ..................................................................................... 17
Utilization in Conformity with "Intended Purpose"................................................................................. 17
Field of application ............................................................................................................................... 17
Photovoltaic system stipulations........................................................................................................... 17
The Fronius IG TL Unit in the PV System.................................................................................................. 18
General ................................................................................................................................................. 18
Tasks .................................................................................................................................................... 18
Converting DC into AC current ............................................................................................................. 18
Fully automatic operation management................................................................................................ 18
Display function and data communication ............................................................................................ 18
Solar Module String Monitoring............................................................................................................. 18
System upgrades.................................................................................................................................. 18
Active inverter cooling........................................................................................................................... 19
Power derating...................................................................................................................................... 19
EN-US
Installation and Startup 21
Fronius IG TL Installation and Connection................................................................................................. 23
Fronius IG TL construction.................................................................................................................... 23
Overview............................................................................................................................................... 23
Choosing the Location ............................................................................................................................... 24
Choosing the Location (General).......................................................................................................... 24
Choosing a Location for Inside Installation ........................................................................................... 25
Choosing a Location for Outdoor Installation........................................................................................ 25
Connection Options and Knockouts on the Fronius IG TL......................................................................... 26
Connection options on the Fronius IG TL ............................................................................................. 26
Knockouts on the Fronius IG TL ........................................................................................................... 26
Attaching the Wall Bracket......................................................................................................................... 28
Selecting dowels and screws................................................................................................................ 28
Screw recommendation ........................................................................................................................ 28
Separating the wall bracket and power stage set .................................................................................28
Installation position ............................................................................................................................... 28
Attaching the wall bracket - Wall installation......................................................................................... 29
Attaching the wall bracket - Column installation ................................................................................... 30
Connecting Fronius IG TL Dummy to the Public Grid Using a Separate Power Supply Unit..................... 31
General ................................................................................................................................................. 31
Connecting Fronius IG TL Dummy to the Public Grid Using a Separate Power Supply Unit (AC) ....... 31
Connecting the Fronius IG TL to the public grid (AC) ................................................................................ 32
Monitoring the Grid ............................................................................................................................... 32
AC terminals ......................................................................................................................................... 32
Connecting Aluminum Cables............................................................................................................... 32
AC cable cross section ......................................................................................................................... 33
Safety.................................................................................................................................................... 33
Connecting the Fronius IG TL to the public grid (AC)........................................................................... 33
Maximum AC-side Overcurrent Protection ........................................................................................... 34
Connecting Solar Module Strings to the Fronius IG TL (DC)..................................................................... 35
Fronius IG TL field of application .......................................................................................................... 35
General information about solar modules............................................................................................. 35
Safety.................................................................................................................................................... 35
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DC terminals ......................................................................................................................................... 36
Connecting aluminum cables................................................................................................................ 36
Cable cross section of solar module strings ......................................................................................... 36
Polarity reversal of solar module strings............................................................................................... 37
Information on Dummy Devices............................................................................................................ 37
Connecting Solar Module Strings to the Fronius IG TL (DC)................................................................ 37
Inserting String Fuses into the Fronius IG TL ............................................................................................ 40
General ................................................................................................................................................. 40
Selecting string fuses............................................................................................................................ 40
Safety.................................................................................................................................................... 40
Inserting string fuses into the Fronius IG TL......................................................................................... 41
Criteria for the Proper Selection of String Fuses ....................................................................................... 43
General ................................................................................................................................................. 43
Criteria for the Proper Selection of String Fuses .................................................................................. 43
Effects of Using Underrated Fuses....................................................................................................... 43
Fuse recommendations ........................................................................................................................ 43
Application example.............................................................................................................................. 43
Fuses .................................................................................................................................................... 44
Clipping Power Stage Sets onto the Wall Bracket ..................................................................................... 45
Clipping power stage sets onto the wall bracket................................................................................... 45
Data Communication and Solar Net .......................................................................................................... 46
Fronius Solar Net and Data Interface ................................................................................................... 46
Data communication rack ..................................................................................................................... 46
Overcurrent and under-voltage shutdown............................................................................................. 46
Data communication connections......................................................................................................... 47
'Solar Net' LED description ................................................................................................................... 48
Example................................................................................................................................................ 48
Maximum output current for data communication and the 12 V signaling output ................................. 49
Connecting data communication cables to inverters ............................................................................ 49
USB Stick as a Data Logger and for Updating Inverter Software .............................................................. 50
USB stick as a data logger.................................................................................................................... 50
Data on the USB stick........................................................................................................................... 50
Data amount and memory capacity ...................................................................................................... 51
Buffer memory ...................................................................................................................................... 52
Suitable USB sticks............................................................................................................................... 52
USB stick for updating inverter software............................................................................................... 53
Removing the USB stick ....................................................................................................................... 53
First startup ................................................................................................................................................ 54
Factory pre-set configuration ................................................................................................................ 54
First startup........................................................................................................................................... 54
Operation 57
Keys and symbols...................................................................................................................................... 59
Keys and Symbols ................................................................................................................................ 59
Display .................................................................................................................................................. 60
Symbols for function key functions ....................................................................................................... 60
Control and Status LEDs ...................................................................................................................... 61
Startup Phase and Grid Feed-in Mode ...................................................................................................... 62
Startup phase........................................................................................................................................ 62
The operation of feeding energy into the grid ....................................................................................... 62
Navigation in the Menu Level..................................................................................................................... 63
Activating display illumination ............................................................................................................... 63
Automatic Deactivation of Display Illumination / Switching to the "NOW" Display Mode...................... 63
Accessing the menu level ..................................................................................................................... 63
The Display Modes .................................................................................................................................... 64
Display modes ...................................................................................................................................... 64
Selecting a display mode...................................................................................................................... 64
Overview of display values ................................................................................................................... 65
Display Values in the ‘NOW’ Display Mode ............................................................................................... 66
Selecting a display mode...................................................................................................................... 66
Display values in the ‘NOW’ display mode ........................................................................................... 66
Display Values in the ‘TODAY’ / ‘YEAR’ / ‘TOTAL’ Display Modes ........................................................... 68
Selecting the ‘TODAY’ / ‘YEAR’ / ‘TOTAL’ display mode ..................................................................... 68
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Display values in the ‘TODAY’ / ‘YEAR’ / ‘TOTAL’ display modes ....................................................... 69
The Setup Menu ........................................................................................................................................ 71
Presetting.............................................................................................................................................. 71
Accessing the Setup menu ................................................................................................................... 71
Scrolling through menu items ............................................................................................................... 71
Menu Items in the Setup Menu .................................................................................................................. 72
Standby................................................................................................................................................. 72
Contrast ................................................................................................................................................ 72
Backlight ............................................................................................................................................... 73
Language ............................................................................................................................................. 73
Currency .............................................................................................................................................. 73
CO2 Factor ........................................................................................................................................... 73
Yield...................................................................................................................................................... 74
DATCOM .............................................................................................................................................. 74
Signal relay ........................................................................................................................................... 75
Energy manager ................................................................................................................................... 76
Energy manager: Notes on configuring the switch-on and switch-off points ........................................ 77
Energy manager: Example ................................................................................................................... 77
USB....................................................................................................................................................... 77
String Control........................................................................................................................................ 78
Device Info............................................................................................................................................ 79
Clock .................................................................................................................................................... 81
PS Status.............................................................................................................................................. 81
Grid Status............................................................................................................................................ 81
Version.................................................................................................................................................. 81
Setting and Displaying Menu Items ........................................................................................................... 82
General menu item settings.................................................................................................................. 82
Exiting a menu item .............................................................................................................................. 83
Examples of Setting and Displaying Menu Items.................................................................................. 83
Setting the display illumination.............................................................................................................. 83
Setting the currency and feed-in tariff................................................................................................... 84
Updating inverter software using a USB stick....................................................................................... 85
Safely removing USB sticks.................................................................................................................. 88
Activating solar module string monitoring ............................................................................................. 89
Setting the time and date...................................................................................................................... 92
Switching the key lock on and off............................................................................................................... 94
General ................................................................................................................................................. 94
Switching the Key Lock On and Off ...................................................................................................... 94
EN-US
Troubleshooting and Maintenance 97
Status Diagnosis and Troubleshooting ...................................................................................................... 99
Displaying Status Codes....................................................................................................................... 99
Total failure of the display..................................................................................................................... 99
Class 1 status codes............................................................................................................................. 99
Class 3 status codes............................................................................................................................. 101
Class 4 status codes............................................................................................................................. 103
Class 5 status codes............................................................................................................................. 108
Class 7 status codes............................................................................................................................. 110
Class 10–12 Status Codes ................................................................................................................... 116
Customer Service ................................................................................................................................. 116
Maintenance .............................................................................................................................................. 117
Safety.................................................................................................................................................... 117
General ................................................................................................................................................. 117
Opening Fronius IG TL for service/maintenance ..................................................................................
Operation in dusty environments .......................................................................................................... 118
Replacing String Fuses.............................................................................................................................. 120
Safety.................................................................................................................................................... 120
Preparation ........................................................................................................................................... 120
Replacing fuses .................................................................................................................................... 122
Finally.................................................................................................................................................... 123
Appendix 125
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Technical Data ........................................................................................................................................... 127
Fronius IG TL 3.0.................................................................................................................................. 127
Fronius IG TL 3.6.................................................................................................................................. 128
Fronius IG TL 4.0.................................................................................................................................. 129
Fronius IG TL 4.6.................................................................................................................................. 130
Fronius IG TL 5.0.................................................................................................................................. 131
Fronius IG TL Dummy........................................................................................................................... 132
Protection devices for all inverters........................................................................................................ 132
Explanation of footnotes ....................................................................................................................... 132
Relevant Standards and Directives............................................................................................................ 133
CE Conformity Marking......................................................................................................................... 133
Relevant standards and directives........................................................................................................ 133
Grid interface ........................................................................................................................................ 133
Parallel Operation of In-Plant Power Generation Systems................................................................... 133
Circuit to Prevent Islanding................................................................................................................... 133
Grid Failure ........................................................................................................................................... 133
Terms and conditions of warranty and disposal......................................................................................... 134
Fronius Manufacturer's Warranty.......................................................................................................... 134
Disposal ................................................................................................................................................ 134
.............................................................................................................................................................. 136
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Safety Instructions
EN-US
Explanation of
Safety Instructions
General
DANGER! Indicates an immediate danger. Death or serious injury may result if
appropriate precautions are not taken.
WARNING! Indicates a possibly dangerous situation. Death or serious injury may
result if appropriate precautions are not taken.
CAUTION! Indicates a situation where damage or injury could occur. Minor injury
or damage to property may result if appropriate precautions are not taken.
NOTE! Indicates the possibility of flawed results and 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.
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.
Before switching on the device, remove any faults that could compromise
safety.
Your personal safety is at stake!
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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 utility regarding energy fed into the grid
- Instructions from the solar module manufacturer
Environmental
Conditions
Qualified Service
Engineers
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.
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).
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
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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.
Data Regarding
Noise Emission
Values
The inverter generates a maximum sound power level of < 80 dB(A) (ref. 1
pW) when operating under full load in accordance with IEC 62109-1:2010.
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.
EN-US
EMC Device Classifications
EMC Measures
Grid Connection
Devices in emission class A:
- Are only designed for use in industrial settings
- Can cause line-bound and radiated interference in other areas
Devices in 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.
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.
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 *)
Electrical Installations
*) 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 must only be carried out according to relevant national
and local standards and regulations.
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Protective Measures against
ESD
Danger of damage to electrical components from electrical discharge. Suitable
measures should be taken to protect against ESD when replacing and installing components.
Safety measures
in normal operation
Safety Symbols
Disposal
Only operate the device when all safety devices are fully functional. If the safety 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 operating company
- inefficient operation of the device
Safety equipment that is not fully functional must be repaired by an authorized
specialist before the device is turned on.
Never bypass or disable safety devices.
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.
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!
Backup
Copyright
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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.
General Information
Protection of Persons and Equipment
EN-US
Safety
Protection of Persons and Equipment
RCMU RCMU = Residual Current Monitoring Unit
The design and function of the inverter provide a maximum level of safety during both installation and operation.
The inverter provides operator and equipment protection through:
a) RCMU
b) monitoring the grid
The inverter is equipped with an RCMU according to DIN VDE 0126-1-1.
It monitors residual currents from the solar module to the inverter grid connection and disconnects the inverter from the grid when an improper residual current is detected.
Additional residual current protection may be needed depending on the installation's protection system or the requirements of the utility company. In this case, use a type A residual
current circuit breaker with a release current of at least 100 mA.
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.
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
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Warning notices
affixed to the device
The inverter wall bracket contains warning notices and safety symbols. These warning notices and safety symbols must NOT be removed or painted over. The notices and symbols
warn against operating the equipment incorrectly, as this may result in serious injury and
damage.
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Safety Symbols:
Risk of serious injury or damage due to incorrect operation
Do not use the functions described until you have thoroughly read and understood the following documents:
- These operating instructions
- All operating instructions for the system components of the photovoltaic
system, especially the safety rules
Dangerous electrical voltages
Warning Notice Texts:
WARNING!
An electric shock can be fatal. Before opening the machine, it must be de-energized at the
input and output.
You must wait until the capacitors have discharged. Discharge takes 3 minutes.
Solar modules exposed to light create dangerous voltage.
The service area should only be opened by a licensed electrician.
CAUTION!
Inverters and other current-carrying components of a photovoltaic system may be damaged through faulty or improper installation. Faulty or improper installation may cause
overheating of cables and terminals as well as the formation of arcs. This could cause thermal damage, which in turn may lead to fires. Please note the following when connecting
the AC and DC cables:
- Securely tighten all terminals using the proper torque listed in the operating instructions
- Do not overload cables
- Check cables for damage and that they are wired correctly
- Follow all safety instructions, operating instructions as well as any local connection
regulations
EN-US
Dear Customer, The purpose of this information sheet is to emphasize that the manufacturer's specifications regarding connection, installation and operation must be followed.
You must carefully follow all installation steps and make all connections in accordance with
specifications and regulations to minimize any risk of danger. The tightening torques for
the respective terminals are listed in the operating instructions for each respective device.
15
Information on
Dummy Devices
A dummy device should not be connected to a photovoltaic system for real operation and
may only be used for demonstration purposes.
IMPORTANT! When using a dummy device:
- you should never connect a live DC cable to the DC connection sockets
- you should never connect the public grid to the AC connection sockets.
You may connect live cables or cable pieces for demonstration purposes.
Dummy devices receive their power supply from a separate power unit.
Dummy devices can be recognized by their device rating plate:
Dummy device rating plate
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Utilization in accordance with "intended purpose"
EN-US
Utilization in Conformity with "Intended Purpose"
Field of application
Photovoltaic system stipulations
The Fronius IG TL solar inverter is designed exclusively to convert direct current from solar
modules into alternating current and feed this power into the pubic grid.
The following are deemed to be not in conformity with its intented purpose:
- Utilization for any other purpose, or in any other manner
- Alterations to the Fronius IG TL that are not expressly recommended by Fronius
- Installation of components that are not expressly recommended or sold by Fronius
The manufacturer is not responsible for any damages resulting from unintended use.
All warranty claims are voided.
Utilization in conformity with the "intended purpose" also includes
- Following all the instructions in these operating instructions
- Carrying out all the specified inspection and servicing work
The inverter has been designed exclusively for use in grid-connected photovoltaic systems. It cannot generate electric power independently of the grid.
NOTE! The inverter is designed exclusively to be connected and used with nongrounded solar modules in protection class II. The solar modules cannot be
grounded at either the positive or negative pole.
Use with other DC generators (e.g., wind generators) is not permitted.
When configuring the photovoltaic system, make sure that all photovoltaic system components are operating completely within their permitted operating range.
All measures recommended by the solar module manufacturer for maintaining solar module properties must be followed.
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The Fronius IG TL Unit in the PV System
General The solar inverter is the highly complex link between the solar modules and the public grid.
Tasks The main tasks of the inverter include:
- Converting DC to AC current
- Fully automatic operational management
- Display function and data communication
Converting DC
into AC current
Fully automatic
operation management
Display function
and data communication
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.
The inverter is fully automatic. Starting at sunrise, as soon as the solar modules generate
enough energy, the automatic control unit starts monitoring grid voltage and frequency. As
soon as there is a sufficient level of irradiance, your solar inverter starts feeding energy into
the grid.
The control system of the inverter 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 shuts down the grid connection completely and stops operating. All settings
and recorded data are saved.
The display on the inverter is the interface between the inverter and the operator. The design of the display is geared toward simple operation and making system data available at
all times.
The inverter is equipped with basic logging functions for recording minimum and maximum
data on a daily, yearly, and cumulative basis. These values are shown on the display.
A wide range of data communication products allows many possibilities for recording and
viewing data.
Solar Module
String Monitoring
System upgrades The inverter is designed for various system upgrades, e.g.:
18
The inverter has a function that can monitor incoming solar module strings to detect errors
in the solar module field.
- Data logger (when using a PC to record and manage data from your photovoltaic system), includes a data logger and a modem interface.
- Various large-format displays
- Actuators (e.g.: relays, alarms)
- Fronius Sensor Box (sensors for temperature, irradiance, energy measurement, etc.)
- Fronius DC Box 60/12 (general mailbox)
Active inverter
cooling
Power derating Should there be insufficient heat dissipation in spite of the fan operating at maximum speed
The inverter's temperature-controlled, variable-speed fan with ball-bearing support provides:
- Optimal inverter cooling
- Higher efficiency
- Cooler parts, thus extending the service life
- The least possible energy consumption and lowest possible noise level
- Weight reduction due to the reduction of the cooling element surface
(for example, inadequate heat transfer away from the heat sinks), the power will be derated
to protect the inverter when the ambient temperature reaches approx. 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.
EN-US
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20
Installation and Startup
Fronius IG TL Installation and Connection
EN-US
Fronius IG TL
construction
Fronius IG TL main components
Overview "Fronius IG TL Installation and Connection" contains the following sections:
- Choosing the Location
- Connection Options and Knockouts on the Fronius IG TL
- Attaching the Wall Bracket
- Connecting Fronius IG TL Dummy to the Public Grid Using a Separate Power Supply
Unit (AC)
- Connecting Fronius IG TL to the Public Grid (AC)
- Connecting Solar Module Strings to Fronius IG TL (DC)
- Inserting String Fuses
- Criteria for the Proper Selection of String Fuses
- Clipping Power Stage Sets onto the Wall Bracket
The inverter consists of the following main
components:
- Wall bracket with connection area
- Power stage set with data communication rack
- Housing cover
The inverter is delivered with these components assembled.
23
Choosing the Location
Choosing the Location (General)
Please note the following criteria when choosing a location for the inverter:
Only install on a stable, vertical wall
Max. ambient temperatures: -20°C / +55°C
Relative humidity: 0–95%
Altitude above sea level: up to 2,000 m
- There should be a 200 mm clearance on both sides of the inverter for the cooling air
openings.
- Keep a distance of 300 mm either side between the individual Fronius IG TL units.
50 mm
200 mm
300 mm
The air flow direction within the inverter is from left to right (cold air intake on the left, hot
air outflow on the right).
When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation.
The inverter is designed for installation both indoors and outdoors.
If you wish to install the inverter on the outer walls of cattle stables, it is important to keep
a minimum clearance of 2 m between all sides of the inverter and air vents and other openings.
The place of installation should not be exposed to ammonia, corrosive gases, salts, or acids.
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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.
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
EN-US
Choosing a Location for Outdoor
Installation
Because of its IP 44 protection class, the inverter is not susceptible to hose water on any
side and can also be operated in moist environments.
In order to keep inverter heating as low as possible, 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 an overhanging roof.
Do not install the inverter:
- where it may be exposed to ammonia, corrosive gases, acids or salts (e.g., fertilizer
storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.).
25
Connection Options and Knockouts on the Fronius
IG TL
Connection options on the Fronius IG TL
(1)
(2)
Connection options on the wall bracket of the Fronius IG TL
Item Description
(1) DC+ terminals
(2) Strain relief device
(3) DC- terminals
(4) Metric screw joint M32 or M40 (AC connection)
(5) AC terminals
(3)
(5)
(4)
Knockouts on the
Fronius IG TL
The connection area contains several knockouts of different sizes. When knocked out, the
openings are used as inputs for the DC wires.
(1)
Knockouts on the Wall Bracket of the Fronius IG TL 5.0
NOTE! You should only remove the number of knockouts required for the available cables (e.g., 3 openings for 3 module strings).
(2)
(3)
(4)
26
Item Description
(1) 5 inputs for DC+ cables, cable diameter min. 4 - max. 9 mm
(2) 1 input for DC+ cable, cable diameter min. 4 - max. 11 mm
(3) 5 inputs for DC- cables, cable diameter min. 4 - max. 9 mm
(4) 1 input for DC- cable, cable diameter min. 4 - max. 11 mm
EN-US
27
Attaching the Wall Bracket
Selecting dowels
and screws
Screw recommendation
Separating the
wall bracket and
power stage set
IMPORTANT! Depending on the surface, different dowels and screws may be required for
installing the wall bracket. Therefore, these dowels and screws are not part of the scope of
supply for the inverter. The system installer is responsible for selecting the proper dowels
and screws.
The head height of the screws used may be a maximum of 6 mm.
When using washers, the maximum head height of th screws is reduced by the thickness
of the washers.
The manufacturer recommends using screws with a min. diameter of 6 mm for inverter installation.
The side areas of the housing cover are designed to function as carrying grips and/or handles.
1
2
2
2
2
2
2
Installation position
2
2
1 2
1
WARNING! An inadequate grounding conductor connection can cause serious
personal injuries and damage to (or loss of) property. The housing screws provide
an adequate grounding conductor connection for the housing ground and should
not be replaced under any circumstances by other screws that do not provide a
proper grounding conductor connection.
NOTE! The inverter should only be installed upright, e.g., on a wall, column, or
metal carrier.
2
1
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