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IG Plus 25 V

Fronius IG Plus 25 V, IG Plus 30 V, IG Plus 35 V, IG Plus 50 V, IG Plus 55 V Operating Instruction [EN]

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/ Perfect Charging / Perfect Welding / Solar Energy
Fronius IG Plus 25 V / 30 V / 35 V / 50 V / 55 V / 60 V 70 V / 80 V / 100 V / 120 V / 150 V
Operating Instructions
Inverter for grid-connected photo-
voltaic systems
42,0426,0062,EA 022-07062016
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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.
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Contents
Safety Instructions ..................................................................................................................................... 9
Explanation of Safety Instructions......................................................................................................... 9
General ................................................................................................................................................. 9
Utilization in Accordance with "Intended Purpose" ...............................................................................10
Environmental Conditions ..................................................................................................................... 10
Qualified Service Engineers.................................................................................................................. 10
Safety Measures at the Installation Location ........................................................................................ 10
Data Regarding Noise Emission Values ............................................................................................... 11
EMC Device Classifications .................................................................................................................. 11
EMC Measures ..................................................................................................................................... 11
Grid Connection .................................................................................................................................... 11
Electrical Installations ........................................................................................................................... 11
Protective Measures against ESD ........................................................................................................ 12
Safety measures in normal operation ................................................................................................... 12
Safety Symbols ..................................................................................................................................... 12
Disposal ................................................................................................................................................ 12
Backup .................................................................................................................................................. 12
Copyright............................................................................................................................................... 12
Protection of Persons and Equipment ....................................................................................................... 13
Safety.................................................................................................................................................... 13
Protection of Persons and Equipment .................................................................................................. 13
Galvanic isolation.................................................................................................................................. 13
Monitoring the Grid ............................................................................................................................... 13
Warning notices affixed to the device ................................................................................................... 13
Warning notice on the wall bracket ....................................................................................................... 15
The Fronius IG Plus Unit in the PV System ............................................................................................... 16
General ................................................................................................................................................. 16
Tasks .................................................................................................................................................... 16
Converting DC to AC Current ............................................................................................................... 16
Fully automatic operation management................................................................................................ 16
Display function and data communication ............................................................................................ 16
System Upgrade ................................................................................................................................... 16
Forced Ventilation ................................................................................................................................. 17
100 kohm Grounding Kit Option............................................................................................................ 17
Power derating...................................................................................................................................... 17
Fronius IG Plus Installation and Connection.............................................................................................. 18
Inverter Construction............................................................................................................................. 18
Overview ............................................................................................................................................... 18
Choosing the Location ............................................................................................................................... 19
Choosing the Location, General ........................................................................................................... 19
Choosing a Location for Inside Installation ........................................................................................... 19
Choosing a location for outdoor installation .......................................................................................... 20
Fronius IG Plus Connection Options.......................................................................................................... 21
Fronius IG Plus connection options ...................................................................................................... 21
Knockouts on the Fronius IG Plus ............................................................................................................. 23
General ................................................................................................................................................. 23
Knockouts on the Fronius IG Plus for wire inputs ................................................................................. 23
Removing Knockouts ............................................................................................................................ 23
Fronius IG Plus Installation ........................................................................................................................ 24
Attaching the wall bracket ..................................................................................................................... 24
Lifting the Fronius IG Plus..................................................................................................................... 24
Fronius IG Plus installation ................................................................................................................... 25
Connecting the Fronius IG Plus to the Public Grid (AC) ............................................................................ 27
Monitoring the Grid ............................................................................................................................... 27
Installations with Several Inverters ....................................................................................................... 27
AC-side terminals.................................................................................................................................. 27
Mains Neutral Conductor ...................................................................................................................... 28
Connecting Aluminum Cables............................................................................................................... 28
Cross Section of AC Wires ................................................................................................................... 28
Safety.................................................................................................................................................... 28
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Connecting the Fronius IG Plus to the public grid (AC) ........................................................................ 28
Maximum alternating current fuse protection........................................................................................ 29
Connecting Solar Module Strings to the Fronius IG Plus (DC) .................................................................. 30
General Information about Solar Modules ............................................................................................ 30
Safety.................................................................................................................................................... 30
DC-Side Terminals................................................................................................................................ 31
Connecting aluminum cables (DC) ....................................................................................................... 31
Polarity Reversal of Solar Module Strings ............................................................................................ 32
Overview ............................................................................................................................................... 32
Ungrounded System: Connecting Solar Module Strings............................................................................ 33
Wire Cross Section of Solar Module Strings......................................................................................... 33
Ungrounded system: Connecting solar module strings ........................................................................ 33
Selecting String Fuses .......................................................................................................................... 35
Inserting String Fuses ........................................................................................................................... 35
Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm² ............... 37
General ................................................................................................................................................. 37
Additional components required ........................................................................................................... 37
Ungrounded system: Connecting solar module strings with a cable cross section > 16 mm² .............. 37
Solar Module Ground at Negative Pole: Connecting Solar Module Strings............................................... 41
General ................................................................................................................................................. 41
Wire Cross Section of Solar Module Strings......................................................................................... 41
Solar module ground at negative pole: Connecting solar module strings............................................. 41
Selecting String Fuses .......................................................................................................................... 43
Inserting String Fuses ........................................................................................................................... 43
Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section >
16 mm².......................................................................................................................................................
General ................................................................................................................................................. 45
Additional components required ........................................................................................................... 45
Solar module ground at negative pole: Connecting solar module strings with a cable cross section >
16 mm²..................................................................................................................................................
Solar Module Ground at Negative Pole for Fronius IG Plus ...................................................................... 49
General ................................................................................................................................................. 49
Solar Module Ground at Negative Pole ................................................................................................ 49
Solar Module Grounding at Negative Pole for Fronius IG Plus............................................................. 49
Safety.................................................................................................................................................... 50
Setting inverters for grounded solar modules ....................................................................................... 50
Solar Module Ground: Inserting Fuse or "100 kohm Grounding Kit" Option......................................... 50
Opening Fronius IG Plus for Service/Maintenance............................................................................... 51
Solar Module Ground at Positive Pole: Connecting Solar Module Strings ................................................ 52
General ................................................................................................................................................. 52
Wire Cross Section of Solar Module Strings......................................................................................... 52
Solar module ground at positive pole: Connecting solar module strings .............................................. 52
Selecting String Fuses .......................................................................................................................... 55
Inserting String Fuses ........................................................................................................................... 55
Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16
mm²............................................................................................................................................................
General ................................................................................................................................................. 56
Additional components required ........................................................................................................... 56
Solar module ground at positive pole: Connecting solar module strings with a cable cross section > 16
mm².......................................................................................................................................................
Solar Module Ground at Positive Pole for Fronius IG Plus ........................................................................61
General ................................................................................................................................................. 61
Solar Module Ground at Positive Pole .................................................................................................. 61
Solar Module Grounding at Positive Pole for Fronius IG Plus .............................................................. 61
Safety.................................................................................................................................................... 62
Setting inverters for grounded solar modules ....................................................................................... 62
Solar Module Ground: Inserting Fuse or "100 kohm Grounding Kit" Option......................................... 62
Opening Fronius IG Plus for Service/Maintenance............................................................................... 63
Criteria for the Proper Selection of String Fuses ....................................................................................... 64
General ................................................................................................................................................. 64
Criteria for the Proper Selection of String Fuses .................................................................................. 64
Effects of Using Underrated Fuses ....................................................................................................... 64
Fuse Recommendations ....................................................................................................................... 64
Application Example ............................................................................................................................. 64
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Fuses .................................................................................................................................................... 64
Closing Fronius IG Plus ............................................................................................................................. 66
Closing Fronius IG Plus ........................................................................................................................ 66
Inserting Option Cards ............................................................................................................................... 67
Suitable Option Cards........................................................................................................................... 67
Safety.................................................................................................................................................... 67
Opening Fronius IG Plus....................................................................................................................... 67
Inserting option cards into the Fronius IG Plus ..................................................................................... 68
Closing Fronius IG Plus ........................................................................................................................ 68
Data Communication and Solar Net .......................................................................................................... 70
Solar Net and Data Interface ................................................................................................................ 70
Example ................................................................................................................................................ 70
Commissioning .......................................................................................................................................... 72
Factory Configuration............................................................................................................................ 72
Start-up operation ................................................................................................................................. 72
Setting Inverters for Available Solar Module Ground............................................................................ 72
Product Description Fronius IG Plus.......................................................................................................... 76
Controls and Indicators ......................................................................................................................... 76
Display .................................................................................................................................................. 76
Operating Status LED ........................................................................................................................... 78
Startup Phase and Grid Feed-in Mode ...................................................................................................... 79
Startup phase........................................................................................................................................ 79
Test Procedure ..................................................................................................................................... 79
Operation of Feeding Energy into the Grid ........................................................................................... 80
Navigation in the Menu Level..................................................................................................................... 81
Activating display illumination ............................................................................................................... 81
Automatic switch to the "Now" display mode or the startup phase ....................................................... 81
Accessing the Menu Level .................................................................................................................... 81
The Display Modes .................................................................................................................................... 82
The Display Modes ............................................................................................................................... 82
Selecting a Display Mode ..................................................................................................................... 82
Overview of Display Values .................................................................................................................. 83
Display Values in "Now" Display Mode...................................................................................................... 84
Selecting the "Now" Display Mode........................................................................................................ 84
Display values in the "Now" display mode ............................................................................................ 84
Options.................................................................................................................................................. 86
Display Values in "Day / Year / Total" Display Modes ............................................................................... 87
General ................................................................................................................................................. 87
Selecting "Day / Year / Total" Display Mode......................................................................................... 87
Display values in the 'Day / Year / Total' display modes....................................................................... 88
Options.................................................................................................................................................. 89
The Setup Menu ........................................................................................................................................ 90
Presetting.............................................................................................................................................. 90
Accessing the Setup Menu ................................................................................................................... 90
Scrolling through Menu Items ............................................................................................................... 91
Menu Items in the Setup Menu .................................................................................................................. 92
STANDBY ............................................................................................................................................. 92
WLAN AP.............................................................................................................................................. 92
CONTRAST .......................................................................................................................................... 93
LIGHT MODE........................................................................................................................................ 94
CASH .................................................................................................................................................... 94
CO2............................................................................................................................
YIELD.................................................................................................................................................... 95
IG no. .................................................................................................................................................... 95
DAT COM ............................................................................................................................................. 95
TIME ..................................................................................................................................................... 96
LIMIT CFG ............................................................................................................................................ 96
STATE PS............................................................................................................................................. 99
VERSION.............................................................................................................................................. 100
Setting and Displaying Menu Items ........................................................................................................... 101
Setting Menu Items - General ............................................................................................................... 101
Examples of Setting and Displaying Menu Items.................................................................................. 101
Setting the Currency and Charge Rate................................................................................................. 101
Displaying and Setting Parameters in the "DATCOM" Menu Item........................................................ 103
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Setting Time and Date ......................................................................................................................... 106
Setup Lock function ................................................................................................................................... 109
General ................................................................................................................................................. 109
Activating/deactivating the "Setup Lock" function ................................................................................. 109
Select Log Entry function ........................................................................................................................... 111
General ................................................................................................................................................. 111
'Select Log Entry' function - access saved grid errors .......................................................................... 111
Energy Management function .................................................................................................................... 113
General ................................................................................................................................................. 113
Activating the "Energy Management" function...................................................................................... 113
Notes on configuring the switch-on and switch-off points ..................................................................... 115
Example ................................................................................................................................................ 116
Status Diagnosis and Troubleshooting ...................................................................................................... 117
Displaying Status Codes....................................................................................................................... 117
Normal Operation Status Codes ........................................................................................................... 117
Total Failure .......................................................................................................................................... 117
Status Codes on inverters with Several Power Stage Sets .................................................................. 117
Class 1 Status Codes ........................................................................................................................... 118
Class 3 status codes............................................................................................................................. 120
Class 4 status codes............................................................................................................................. 122
Class 5 status codes............................................................................................................................. 128
Customer Service ................................................................................................................................. 132
Maintenance .............................................................................................................................................. 133
Safety.................................................................................................................................................... 133
General ................................................................................................................................................. 133
Operation in Dusty Environments ......................................................................................................... 133
Opening Fronius IG Plus for Service/Maintenance............................................................................... 133
Replacing String Fuses.............................................................................................................................. 135
Safety.................................................................................................................................................... 135
Preparation ........................................................................................................................................... 135
Replacing Fuses ................................................................................................................................... 136
Finally.................................................................................................................................................... 136
Technical Data ........................................................................................................................................... 138
Fronius IG Plus 25 V-1.......................................................................................................................... 138
Fronius IG Plus 30 V-1.......................................................................................................................... 139
Fronius IG Plus 35 V-1.......................................................................................................................... 140
Fronius IG Plus 50 V-1.......................................................................................................................... 141
Fronius IG Plus 55 V-1, Fronius IG Plus 55 V-2 ................................................................................... 142
Fronius IG Plus 55 V-3.......................................................................................................................... 144
Fronius IG Plus 60 V-1,Fronius IG Plus60 V-2 ..................................................................................... 145
Fronius IG Plus 60 V-3.......................................................................................................................... 146
Fronius IG Plus 70 V-1, Fronius IG Plus 70 V-2 ................................................................................... 147
Fronius IG Plus 80 V-3.......................................................................................................................... 148
Fronius IG Plus 100 V-1, Fronius IG Plus 100 V-2 ............................................................................... 149
Fronius IG Plus 100 V-3........................................................................................................................ 151
Fronius IG Plus 120 V-1........................................................................................................................ 152
Fronius IG Plus 120 V-3........................................................................................................................ 153
Fronius IG Plus 150 V-3........................................................................................................................ 154
Explanation of footnotes ....................................................................................................................... 155
Relevant Standards and Directives............................................................................................................ 156
CE Conformity Marking......................................................................................................................... 156
Parallel Operation of In-Plant Power Generation Systems ................................................................... 156
Circuit to Prevent Islanding ................................................................................................................... 156
Grid Failure ........................................................................................................................................... 156
Terms and conditions of warranty and disposal......................................................................................... 157
Fronius Manufacturer's Warranty.......................................................................................................... 157
Disposal ................................................................................................................................................ 157
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Safety Instructions
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.
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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.
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 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.
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Protection of Persons and Equipment
Safety
Protection of Per­sons and Equip­ment
Galvanic isolation The inverter is equipped with a high frequency transformer that ensures galvanic isolation
Monitoring the Grid
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
between the DC side and the grid, thus ensuring the highest possible safety.
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.
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.
Warning notices affixed to the de­vice
Grid monitoring is carried out using:
- Voltage monitoring
- Frequency monitoring
- Monitoring islanding conditions
The inverter 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:
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Risk of serious injury and 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 system components of the photovoltaic sys­tem, especially the safety rules
Dangerous electrical voltages
Text of warning notices:
WARNING!
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 trained service personnel. You must wait until the capacitors have discharged. Discharge takes 5 minutes. The neu­tral conductor of the grid must be grounded. Solar modules exposed to light create danger­ous voltage. Activate the DC disconnect and disengage the module ground, if available, before working on the solar modules.
Warning notice on the wall brack­et
The wall bracket contains a warning notice regarding the installation of several inverters next to each other. This warning notice warns against incorrect installation and must not be removed or painted over. Incorrect installation voids the warranty, property damage can result.
The spacing information listed in the warning notice from the wall/ceiling to the inverter and from inverter to inverter must be observed when installing several inverters next to each other.
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The Fronius IG Plus 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 to AC Current
Fully automatic operation man­agement
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.
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.
Display function and data commu­nication
System Upgrade The inverter is designed for various system upgrades, e.g.:
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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.
- Upgrades that enable the inverter to communicate with external system upgrades as well as with other inverters
- Datalogger (when using a PC to record and manage data from your photovoltaic sys­tem), includes Datalogger and a modem interface
- Various large-format displays
- Fronius Personal Display
- Actuators (e.g.: relays, alarms)
- Interface cards
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Forced Ventila­tion
System upgrades are available as plug-in cards.
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
100 kohm Grounding Kit Option
Along with the solar module ground on the positive or negative pole, solar modules can also be grounded with high resistance on the positive or negative pole.
This requires the 100 kohm Grounding Kit option, which is insert­ed into the corresponding fuse holder similar to a regular fuse for the solar module ground.
Grounding Kit 100 kOhm
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 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.
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Fronius IG Plus Installation and Connection
Inverter Con­struction
(1)
(2)
Overview ‘Fronius IG Plus Installation and Connection’ contains the following sections:
- Choosing the Location
- Fronius IG Plus Connection Options
- Knockouts on the Fronius IG Plus
- Fronius IG Plus Installation
- Connecting the Fronius IG Plus to the Public Grid (AC)
- Connecting Solar Module Strings to the Fronius IG Plus (DC)
- Closing Fronius IG Plus
The power stage set and the connection area are separated from each other for de­livery.
(1) Power stage set(s)
(2) Connection area
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Choosing the Location
50 mm
300 mm
200 mm
Choosing the Lo­cation, General
Please note the following criteria when choosing a location for the inverter:
It should only be installed on a stable, vertical wall
Max. ambient temperatures: -20 °C / +55 °C
Relative humidity: 0 - 95 %
For use at altitudes above sea level: up to 2000 m
- There should be a 200 mm (7.8 in) clearance on both sides of the inverter for the cool air vents.
- Maintain a side distance of 300 mm (11.8 in) between individual inverters.
Choosing a Loca­tion for Inside In­stallation
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.
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
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Choosing a loca­tion for outdoor installation
Because of its degree of protection, the inverter is not susceptible to splash water from any direction.
However the manufacturer recommends, if possible, not to expose the inverter to direct weathering, in order to prevent water deposits caused by rain or snow.
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.
Do not install the inverter:
- where it can be exposed to ammonia, corrosive gasses, acids or salts (e.g., fertilizer storage areas, vent openings of livestock stables, chemical plants, tanneries)
20
Page 21
Fronius IG Plus Connection Options
Fronius IG Plus connection op­tions
Item Description
(1) Fuse cover (6 x for string fuses, 1 x for the solar module ground fuse)
(2) Jumper slot SMON
(3) DC+ main switch wire
(4) 6 DC+ fuse holders
(5) Jumper slot SMOFF
(6) DC- main switch wire
(7) Plug-in card for country setup (IG Brain)
(8) Open card slot for an option card
(9) Open card slot for a second option card
(10) Open card slot for a third option card
(11) Fuse holder for solar module ground
(12) Strain relief for plug-in card cable
(13) AC-side terminals
(14) Metric screw joint M32 or M40 (AC connection)
(15) 6 DC- terminals
(16) Strain relief for solar module strings
21
Page 22
Item Description
(17) 6 DC+ terminals
(18) DC main switch
22
Page 23
Knockouts on the Fronius IG Plus
General The inverter contains several knockouts of different sizes. When knocked out, the open-
ings are used for the inputs of various wires.
Knockouts on the Fronius IG Plus for wire inputs
(1)
(2)
(3)
Removing Knock­outs
Item Description
(1) 2 cable inputs for M32 metric screw joint
(for DC cables with a cross section > 16 mm²)
(2) 12 cables inputs for 6 solar module strings DC
(for a cable diameter of 5 - 9.2 mm)
(3) Sealing insert (cable input for plug-in card wire)
The knockouts made from plastic as well as the larger ones made from metal should only be removed from the outside in.
The smaller knockouts made from metal should be removed from the inside out.
You should only remove the number of knockouts required for the available cables (e.g., 6 openings for 3 module strings).
The plastic knockouts are also equipped with centering holes so that they can be drilled out if required.
23
Page 24
Fronius IG Plus Installation
"click"
Attaching the wall bracket
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.
NOTE! The Fronius IG Plus should only be installed upright on the wall.
1 2
1
"click"
1
2
min. 50 mm min. 2 in.
2
4
1
1
3
1
6
5
7
(*)
Lifting the Fro­nius IG Plus
IMPORTANT! Attach the wall bracket so that the display marking (*) on the wall bracket is
at eye level.
1 2
3
1
22
3
5
4
6
4
1
6 x
2
23
4
6
5
7
Fronius recommends using commercially available vacuum lifting pads for flat surfaces to lift the connection area and power stage set.
IMPORTANT!
- The vacuum lifting pads must be designed for the weight of the connection area and power stage set.
- Follow all safety instructions from the vacuum lifting pad manufacturer.
- Vacuum lifting pads are not part of the scope of delivery for the inverter.
24
Page 25
Weight information for the connection area and power stage set:
Inverter Connection area Power stage set
Fronius IG Plus 25 V-1 9.85 kg 13.95 kg
Fronius IG Plus 30 V-1 9.85 kg 13.95 kg
Fronius IG Plus 35 V-1 9.85 kg 13.95 kg
Fronius IG Plus 50 V-1 9.85 kg 13.95 kg
Fronius IG Plus 55 V-1 9.85 kg 26.10 kg
Fronius IG Plus 55 V-2 9.85 kg 26.10 kg
Fronius IG Plus 55 V-3 11.05 kg 38.15 kg
Fronius IG Plus 60 V-1 9.85 kg 26.10 kg
Fronius IG Plus 60 V-2 9.85 kg 26.10 kg
Fronius IG Plus 60 V-3 11.05 kg 38.15 kg
Fronius IG Plus 70 V-1 9.85 kg 26.10 kg
Fronius IG Plus 70 V-2 9.85 kg 26.10 kg
Fronius IG Plus 80 V-3 11.05 kg 38.15 kg
Fronius IG Plus 100 V-1 10.80 kg 26.10 kg
Fronius IG Plus 100 V-2 10.85 kg 26.10 kg
Fronius IG Plus 100 V-3 11.05 kg 38.15 kg
Fronius IG Plus 120 V-1 11.05 kg 38.15 kg
Fronius IG Plus 120 V-3 11.05 kg 38.15 kg
Fronius IG Plus 150 V-3 11.05 kg 38.15 kg
Fronius IG Plus installation
NOTE! For inverter assembly, please ensure that:
- the wall bracket is fixed securely to the wall
- the connector is hung and fixed to the wall bracket
- the power stage set is hung on the wall bracket and fixed to the connector
1 2
1
A
2
1
B
2
2
1
25
Page 26
3 4
3
3
4
1
4
5 6
1
2
5
3
3
2
1
6
1
3
A
2
2
3
B
7
7
Use the screws in the bag attached to the wall bracket to secure the power stage set to the connection area.
1
1
2
1
3
26
Page 27
Connecting the Fronius IG Plus to the Public Grid
PE (a)
(b)
(AC)
Monitoring the Grid
Installations with Several Inverters
AC-side terminals
IMPORTANT! The resistance in the leads to the AC-side connection terminals must be as
low as possible for optimal functioning of grid monitoring.
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.
Single-phase inverter Two-phase inverter
PE (a)
Three-phase inverter Legend:
(b)
L1 Phase conductor L2 Phase conductor L3 Phase conductor N Neutral conductor PE Ground conductor/grounding PE (a) Connection option for additional
(b) "US Sense" terminal (for USA)
Max. cable cross-section: 25 mm² - for flexible cables 35 mm² - for rigid cables
PE (a)
grounding
27
Page 28
Mains Neutral Conductor
NOTE! Make sure that the grid neutral conductor is grounded.
The neutral conductor must be connected in order to operate the inverter.
NOTE! If the neutral conductor is too small it can aversely affect the inverter's feed-in of power to the mains. The neutral conductor must therefore be the same size as the other live conductors: L1, L2 and L3.
Connecting Alu­minum Cables
Cross Section of AC Wires
Safety
NOTE! The AC side terminals are not designed for connecting aluminum cables.
For M32 metric screw joint: Cable diameter 11 - 21 mm
For M40 metric screw joint: Cable diameter 19 - 28 mm
If required, use reducers for smaller cable diameters.
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.
Connecting the Fronius IG Plus to the public grid (AC)
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 by overloading the grid neutral con­ductor.
- Do not connect 2-phase and 3-phase devices together to one phase
- Never operate multi-phase 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.
Only an authorized electrician is permitted to connect this inverter to the public grid.
NOTE! Finely stranded cables up to conductor class 5 can be connected to the AC-side terminals without wire end ferrules.
28
Page 29
1 2
1
1
on
off
2
Maximum alter­nating current fuse protection
10 mm
20 mm
2
OFF
AC
7
3
2
4
5
6
1
Terminal tightening torque: 2 Nm
Inverter Phases Nominal output Fuse protection
Fronius IG Plus 25 V-1 1 2.6 kW 1 x C 25 A
Fronius IG Plus 30 V-1 1 3 kW 1 x C 25 A
Fronius IG Plus 35 V-1 1 3.5 kW 1 x C 25 A
Fronius IG Plus 50 V-1 1 4 kW 1 x C 25 A
Fronius IG Plus 55 V-1 1 5 kW 1 x C 50 A
Fronius IG Plus 55 V-2 2 5 kW 2 x C 25 A
Fronius IG Plus 55 V-3 3 5 kW 3 x C 25 A
Fronius IG Plus 60 V-1 1 6 kW 1 x C 50 A
Fronius IG Plus 60 V-2 2 6 kW 2 x C 25 A
Fronius IG Plus 60 V-3 3 6 kW 3 x C 25 A
Fronius IG Plus 70 V-1 1 6.5 kW 1 x C 50 A
Fronius IG Plus 70 V-2 2 6.5 kW 2 x C 25 A
Fronius IG Plus 80 V-3 3 7 kW 3 x C 25 A
Fronius IG Plus 100 V-1 1 8 kW 1 x C 50 A
Fronius IG Plus 100 V-2 2 8 kW 2 x C 25 A
Fronius IG Plus 100 V-3 3 8 kW 3 x C 25 A
Fronius IG Plus 120 V-1 1 10 kW 1 x C 63 A
Fronius IG Plus 120 V-3 3 10 kW 3 x C 25 A
Fronius IG Plus 150 V-3 3 12 kW 3 x C 25 A
NOTE! A residual current circuit breaker for the AC connecting cable may be re­quired depending on local regulations, the power supply company as well as oth­er conditions. A type A residual current circuit breaker is generally sufficient in this case, however, false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on local conditions. For this reason, Fronius recommends that you use a residual current circuit breaker suitable for a frequency converter.
NOTE! Only for three-phase inverters: When using a residual current circuit breaker, the voltage difference between the PE ground conductor and the N neu­tral conductor must not be higher than 8 V.
29
Page 30
Connecting Solar Module Strings to the Fronius IG Plus (DC)
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:
- If irradiance is constant and the temperature is falling, the open circuit voltage of the solar modules will increase. Open circuit voltage may not exceed 600 V. Whenever the open circuit voltage of the solar modules exceeds 600 volts, the inverter may be damaged, and all warranty rights will become null and void.
- More exact values for dimensioning solar modules for the chosen installation location can be provided using suitable calculation programs like the Fronius Solar.configura­tor (available at http.//www.fronius.com).
NOTE! Before connecting solar modules:
- make sure that the voltage specified by the manufacturer corresponds to the actual measured voltage
- determine whether or not a solar module ground is required
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.
30
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DC-Side Termi­nals
DC+ DC-
Connecting alu­minum cables (DC)
The DC-side terminals are designed for connecting single-wire, round aluminum cables. The following points must be taken into account when connecting aluminum cables due to the non-conducting oxide layer of aluminum:
- The reduced rated currents for aluminum cables
- The connection requirements listed below
Reduced rated currents for aluminum cables:
Rated cross section Reduced rated current
2.5 mm² 20 A
4 mm² 27 A
6 mm² 35 A
10 mm² 48 A
16 mm² 64 A
NOTE! Take into account local specifications when configuring cable cross sec­tions.
Connection requirements:
Carefully clean off the oxide layer of the stripped cable end, e.g., using a knife.
1
IMPORTANT! Do not use brushes, files or sandpaper. Aluminum particles may get stuck and can transfer to other cables.
After removing the oxide layer of the cable end, rub in a neutral grease, e.g., acid- and
2
alkali-free Vaseline.
Then immediately connect to the terminal.
3
Repeat the steps above whenever the cable is disconnected and then reconnected.
31
Page 32
Polarity Reversal of Solar Module Strings
CAUTION! Risk of damage and fire to inverter due to reverse polarity of single
solar module strings. Reverse polarity of even one single solar module string can cause an unaccept­able thermal load, which can lead to an inverter fire. Confirm string polarity and voltage before connecting DC wires to the inverter!
Connecting all solar module strings with reverse polarity will not cause any damage to the inverter.
DC+ DC-
-
-
-
All solar module strings connected with reverse polari­ty - no damage to the inverter
Overview ‘Connecting Solar Module Strings to the Fronius IG Plus (DC)’ includes the following sec-
tions:
- Ungrounded System: Connecting Solar Module Strings
- Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
- Solar Module Ground at Negative Pole: Connecting Solar Module Strings
- Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
- Solar Module Ground at Negative Pole for Fronius IG Plus
+
+
+
One single solar module string connected with reverse polarity - risk of damage, risk of fire !
-
+
-
DC+ DC-
+
-
+
32
- Solar Module Ground at Positive Pole: Connecting Solar Module Strings
- Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
- Solar Module Ground at Positive Pole for Fronius IG Plus
- Criteria for the Proper Selection of String Fuses
Page 33
Ungrounded System: Connecting Solar Module Strings
Wire Cross Sec­tion of Solar Mod­ule Strings
Ungrounded sys­tem: Connecting solar module strings
The cable cross section for solar module strings should be a maximum of 16 mm² per ca­ble.
NOTE! To ensure an effective strain relief device for solar module strings, only use cable cross sections of the same size.
1 2
1
2
1
6 x
1
3
3
1
4
2
3
4
NOTE! Finely stranded cables up to conductor class 5 can be connected to the DC-side terminals without wire end ferrules.
33
Page 34
1
4
10 mm
1
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.
2 3
6
7
1
2
SMON
3
SMOFF
Tightening torque of terminals:
1.2 - 1.5 Nm
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment 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.
34
Page 35
4 5
10
11
max. 600 V
3
2
SMON
1
SMOFF
IMPORTANT!
- When connecting solar module strings, you should use metal bolts or string fuses with fuse covers in the fuse holders depending on the solar module manufacturer's instruc­tions. The metal bolts are included in the inverter scope of delivery.
- Place metal bolts with fuse covers in the fuse holders for unoccupied DC+ terminals.
6 7
14
1
15
Selecting String Fuses
1
2
3
2
6 x
For more information on string fuses, see the section "Criteria for the proper selection of string fuses."
If the solar module manufacturer requires the use of string fuses for operation:
- Select string fuses according to the information from the solar module manufacturer or according to "Criteria for the Proper Selection of String Fuses" (max. 20 A per solar module string, max. 6 solar module strings)
IMPORTANT!
- Please follow solar module safety instructions
- Follow all solar module manufacturer requirements
Inserting String Fuses
NOTE! If the solar module manufacturer requires the use of string fuses:
- Insert fuses with a fuse cover in the respective fuse holder
- Do not operate the inverter without fuse covers
35
Page 36
1
1
1
WARNING! An electric shock can be fatal. Danger from DC voltage
1
from solar modules. Fuse covers are for installation purposes only. They offer no protection against
2
3
4
contact.
36
Page 37
Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
General As an option, you can also connect DC cables to the inverter with a cross section > 16 mm²,
e.g., when the DC cables from the solar modules are combined outside of the inverter into a large string.
Additional com­ponents required
Ungrounded sys­tem: Connecting solar module strings with a ca­ble cross section > 16 mm²
The following additional components are required for connecting DC cables with a cross section > 16 mm²:
- 2 M32 metric screw joints (degree of protection min. IP45)
- 2 connection distributors
*) Metric screw joints and connection dis­tributors are available from Fronius as an option.
- 2 M10 cable lugs
Select cable lugs that match the availa­ble DC cables
*)
- 2 M10 hexagon nuts
1 2
1
2
1
6 x
1
3
2
4
37
Page 38
3 4
3
4
1
4
2
3
4
CAUTION! Danger of damaging the inverter by overload. Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on the inverter.
5 6
9
3
1
M10
3
5
4
6 x
2
10
5 mm
1
3
DC+
1
AC
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
1 2
7
5 mm
2
1
DC+
AC
8
1
6 x
2
M10
3
5
4
38
Page 39
1 2
9
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
10
1
2
SMON
1
DC+
DC-
AC
3
SMOFF
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment results
- Check the polarity and voltage of the DC cables strings: The voltage should be a max. of 600 V.
3 4
13
14
max. 600 V
3
2
SMON
5
15
1
SMOFF
1
IMPORTANT When using connection dis­tributors, insert 6 metal bolts with fuse co­vers in the fuse holders. The metal bolts are included in the inverter scope of delivery.
2
6 x
39
Page 40
40
Page 41
Solar Module Ground at Negative Pole: Connecting Solar Module Strings
General The following steps are only necessary when the solar module manufacturer requires a so-
lar module ground at the negative pole.
Wire Cross Sec­tion of Solar Mod­ule Strings
Solar module ground at nega­tive pole: Con­necting solar module strings
The cable cross section for solar module strings should be a maximum of 16 mm² per ca­ble.
NOTE! To ensure an effective strain relief device for solar module strings, only use cable cross sections of the same size.
1 2
1
2
1
6 x
1
3
3
1
4
2
3
4
NOTE! Finely stranded cables up to conductor class 5 can be connected to the DC-side terminals without wire end ferrules.
41
Page 42
1
4
10 mm
1
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.
2 3
6
7
1
2
SMON
3
SMOFF
Tightening torque of terminals:
1.2 - 1.5 Nm
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment 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.
42
Page 43
4 5
10
11
max. 600 V
3
2
SMON
1
SMOFF
IMPORTANT!
- When connecting solar module strings, you should use metal bolts or string fuses with fuse covers in the fuse holders depending on the solar module manufacturer's instruc­tions. The metal bolts are included in the inverter scope of delivery.
- Place metal bolts with fuse covers in the fuse holders for unoccupied DC+ terminals.
6 7
14
1
15
Selecting String Fuses
1
2
3
2
6 x
For more information on string fuses, see the section "Criteria for the proper selection of string fuses."
If the solar module manufacturer requires the use of string fuses for operation:
- Select string fuses according to the information from the solar module manufacturer or according to "Criteria for the Proper Selection of String Fuses" (max. 20 A per solar module string, max. 6 solar module strings)
IMPORTANT!
- Please follow solar module safety instructions
- Follow all solar module manufacturer requirements
Inserting String Fuses
NOTE! If the solar module manufacturer requires the use of string fuses:
- Insert fuses with a fuse cover in the respective fuse holder
- Do not operate the inverter without fuse covers
43
Page 44
1
1
1
WARNING! An electric shock can be fatal. Danger from DC voltage
1
from solar modules. Fuse covers are for installation purposes only. They offer no protection against
2
3
4
contact.
44
Page 45
Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
General The following steps are only necessary when the solar module manufacturer requires a so-
lar module ground at the negative pole.
As an option, you can also connect DC cables to the inverter with a cross section > 16 mm², e.g., when the DC cables from the solar modules are combined outside of the inverter into a large string.
Additional com­ponents required
Solar module ground at nega­tive pole: Con­necting solar module strings with a cable cross section > 16 mm²
The following additional components are required for connecting DC cables with a cross section > 16 mm²:
- 2 M32 metric screw joints (degree of protection min. IP45)
- 2 connection distributors
*) Metric screw joints and connection dis­tributors are available from Fronius as an option.
- 2 M10 cable lugs
Select cable lugs that match the availa­ble DC cables
*)
1 2
1
- 2 M10 hexagon nuts
2
1
6 x
1
3
2
4
45
Page 46
3 4
3
4
1
4
2
3
4
CAUTION! Danger of damaging the inverter by overload. Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on the inverter.
5 6
9
3
1
M10
3
5
4
6 x
2
10
5 mm
1
3
DC+
1
AC
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
1 2
7
5 mm
2
1
DC+
AC
8
1
6 x
2
M10
3
5
4
46
Page 47
1 2
9
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
10
1
2
SMON
1
DC+
DC-
AC
3
SMOFF
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment results
- Check the polarity and voltage of the DC cables strings: The voltage should be a max. of 600 V.
3 4
13
14
max. 600 V
3
2
SMON
5
15
1
SMOFF
1
IMPORTANT When using connection dis­tributors, insert 6 metal bolts with fuse co­vers in the fuse holders. The metal bolts are included in the inverter scope of delivery.
2
6 x
47
Page 48
48
Page 49
Solar Module Ground at Negative Pole for Fronius IG Plus
General Some manufacturers of solar modules stipulate that the module must be grounded.
IMPORTANT: Take into account the following points if a solar module ground is required:
- Specifications of the solar module manufacturer regarding polarity and required type of solar module ground
- National provisions
Solar Module Ground at Nega­tive Pole
Solar Module Grounding at Negative Pole for Fronius IG Plus
Example: Solar module ground at negative pole with
(1)
DC+
DC-
(2)
L
N
=~=
(3)
fuse or high ohm resistor
(1) Solar module (2) Inverter (3) Fuse / High ohm resistor
~
PE
You can ground solar modules in the Fronius IG Plus using a fuse or a high ohm resistor.
Fuse Holder on the Fronius IG Plus for So­lar Module Grounding
Fronius recommends a 1A fuse, size 10 x 38 mm for solar module grounding.
For solar module grounding using a high ohm resistor, Fronius recommends the "100 kOhm Grounding Kit" option only.
WARNING! An electric shock can be fatal. Incorrect or insufficient solar module grounding may result in an electric shock. If the solar module manufacturer requires solar module grounding in the inverter, this may only be provided via the specified fuse or the high ohm resistor "Ground­ing Kit 100 kohm" in compliance with IEC 62109-2.
49
Page 50
Safety
WARNING! An electric shock can be fatal. Danger presented by DC voltage from
solar modules that are exposed to light. When solar modules are grounded, the inverter's insulation monitoring is deactivated.
- Ensure that grounded solar modules are designed so that they are double in­sulated according to protection class II.
- Place the relevant safety labels in a clearly visible place on the photovoltaic system.
- Set the inverter so that a warning message is displayed if the fuse trips.
Safety label for the solar module ground
IMPORTANT! The safety labels and fuse for the solar module ground are not part of the scope of delivery for the inverter and
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechsel­richters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechsel­richters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
must be obtained separately.
Setting inverters for grounded so­lar modules
Solar Module Ground: Inserting Fuse or "100 kohm Grounding Kit" Option
When solar modules are grounded, the inverter's insulation monitoring must be deactivat­ed. For this reason, the inverter must be configured in the second level of the Setup menu so that an error message is displayed or the inverter turns off when the ground fuse is blown (depending on the country setup). The access code 22742 must be entered in order to access the second level of the Setup menu.
NOTE! If the solar module manufacturer requires a ground for solar modules at the negative pole:
- Insert the "100 kohm Grounding Kit" option into the fuse holder completely with the plastic jacket
- Do not operate the inverter without the plastic jacket when using the "100 kohm Grounding Kit" option
or
- Insert the fuse with a fuse cover in the fuse holder
- Do not operate the inverter without a fuse cover
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.
50
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 solar module ground at the negative pole re­mains unaffected. Never touch the DC+ and DC-.
Page 51
Inserting a fuse: Inserting the "100 kohm Grounding
Kit" option:
1
1
1
1
1
1
*)
2
3
4
*) The plastic bolts are included in
the inverter scope of delivery
Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar mod­ule grounding.
Inserting the fuse will ground the solar module at the negative pole.
*)
2
3
*) Remove standard fuse holder with
plastic bolt
Insert the "100 kohm Grounding Kit" op­tion into the fuse holder completely with the plastic jacket
Inserting the "100 kohm Grounding Kit" option grounds the solar module at the negative pole via a high ohm resistor.
Opening Fronius IG Plus for Ser­vice/Maintenance
Procedure for opening the inverter for service or maintenance:
Disconnect AC and DC supply from the inverter
1
Open the connection area
2
Turn off DC main switch
3
Allow the capacitors to discharge (5 minutes)
4
Remove metal covers
5
If present, remove the fuse for the solar module ground
6
If present, remove string fuses
7
Disconnect DC wire
8
Disconnect AC wire
9
51
Page 52
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.
Wire Cross Sec­tion of Solar Mod­ule Strings
Solar module ground at posi­tive pole: Con­necting solar module strings
The cable cross section for solar module strings should be a maximum of 16 mm² per ca­ble.
NOTE! To ensure an effective strain relief device for solar module strings, only use cable cross sections of the same size.
1 2
1
2
1
6 x
1
3 4
3
1
4
2
3
4
4
DC
+
1
2
After disconnecting the DC main switch cable:
- Connect the DC+ cable to the DC- connection as per step 5
- Connect the DC- cable to the DC+ connection as per step 5
- Identify the reversed polarity with (+) and (-) according to steps 6 and 7
DC
-
3
4
52
Page 53
1 2
5
DC
+
3
2
1
6
DC
+
1
DC
-
1
4
3
5
DC
-
2
7
DC
-
1
+
DC
2
NOTE! Finely stranded cables up to conductor class 5 can be connected to the DC-side terminals without wire end ferrules.
1
8
10 mm
1
CAUTION! Danger of damaging the inverter by overload.
- Only connect a maximum of 20 A to an individual DC terminal.
- Connect the DC+ cable to the right connection block of the inverter's DC ter­minals.
- Connect the DC- cable to the left connection block of the inverter's DC termi­nals.
- Identify the reversed polarity with (+) and (-) according to step 10
53
Page 54
2 1
10
10
DC
+
1
DC
+
DC
-
2
DC
-
DC-
DC+
DC-
DC
DC
DC-
-
3
-
DC+
DC
DC
DC+
+
4
+
Tightening torque of terminals:
1.2 - 1.5 Nm
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment 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.
1 2
11
12
max. 600 V
3
15
1
3
SMON
2
SMON
3
SMOFF
2
1
SMOFF
54
Page 55
IMPORTANT!
- When connecting solar module strings, you should use metal bolts with fuse covers in the fuse holders depending on the solar module manufacturer's instructions. The metal bolts are included in the inverter scope of delivery.
- Place metal bolts with fuse covers in the fuse holders for unoccupied DC+ terminals.
4 5
17
1
18
1
Selecting String Fuses
Inserting String Fuses
2
2
6 x
If the solar module manufacturer requires the use of string fuses for operation:
- Select string fuses according to the information from the solar module manufacturer or according to "Criteria for the Proper Selection of String Fuses" (max. 20 A per solar module string, max. 6 solar module strings)
IMPORTANT!
- Please follow solar module safety instructions
- Follow all solar module manufacturer requirements
NOTE! If the solar module manufacturer requires the use of string fuses:
- Insert fuses with a fuse cover in the respective fuse holder
- Do not operate the inverter without fuse covers
1
1
1
WARNING! An electric shock can be fatal. Danger from DC voltage
1
from solar modules. Fuse covers are for installation purposes only. They offer no protection against
2
3
contact.
3
4
55
Page 56
Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²
General The following steps are only necessary when the solar module manufacturer requires a so-
lar module ground at the negative pole.
As an option, you can also connect DC cables to the inverter with a cross section > 16 mm², e.g., when the DC cables from the solar modules are combined outside of the inverter into a large string.
Additional com­ponents required
Solar module ground at posi­tive pole: Con­necting solar module strings with a cable cross section > 16 mm²
The following additional components are required for connecting DC cables with a cross section > 16 mm²:
- 2 M32 metric screw joints (degree of protection min. IP45)
- 2 connection distributors
*) Metric screw joints and connection dis­tributors are available from Fronius as an option.
- 2 M10 cable lugs
Select cable lugs that match the availa­ble DC cables
*)
2 3
2
- 2 M10 hexagon nuts
3
1
6 x
56
1
3
2
4
Page 57
4 5
4
5
DC
+
1
1
4
2
3
4
2
After disconnecting the DC main switch cables:
- Connect the DC+ cable to the DC- connection as per step 5
- Connect the DC- cable to the DC+ connection as per step 5
- Identify the reversed polarity with (+) and (-) according to steps 6 and 7
1 2
5
DC
+
3
2
1
DC
-
6
DC
+
1
DC
-
3
4
DC
-
2
1
4
3 4
5
7
DC
-
1
+
DC
2
8
2
5 mm
1
57
Page 58
CAUTION! Danger of damaging the inverter by overload.
- Connect the DC+ cable to the right connection block of the inverter's DC ter­minals.
- Connect the DC- cable to the left connection block of the inverter's DC termi­nals.
- Identify the reversed polarity with (+) and (-) according to step 14
5 6
13
3
1
14
DC-
M10
3
5
4
6 x
2
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
1 2
11
5 mm
2
1
12
1
DC+
DC-
M10
AC
1
3
5
4
6 x
2
58
DC+
AC
Tightening torque of terminals:
1.2 - 1.5 Nm Tightening torque of hexagon nut on the connection distributor: max. 15 Nm
Page 59
1 2
13
1
14
DC
+
1
DC
+
DC
-
3
DC
-
DC
-
2
DC
-
DC
+
4
DC
+
DC-
DC+
AC
IMPORTANT!
- Set the jumper from the 'SMON' position to the 'SM
' position for correct measure-
OFF
ment results
- Check the polarity and voltage of the DC cables strings: The voltage should be a max. of 600 V.
1 2
15 16
1
2
SMON
3
SMOFF
3
17
3
2
SMON
1
SMOFF
IMPORTANT! When using connection distributors, insert 6 metal bolts with fuse covers in the fuse holders. The metal bolts are included in the Fronius IG Plus scope of delivery.
59
Page 60
4
21
1
2
6 x
60
Page 61
Solar Module Ground at Positive Pole for Fronius IG Plus
General Some manufacturers of solar modules stipulate that the module must be grounded.
IMPORTANT: Take into account the following points if a solar module ground is required:
- Specifications of the solar module manufacturer regarding polarity and required type of solar module ground
- National provisions
Solar Module Ground at Posi­tive Pole
Solar Module Grounding at Positive Pole for Fronius IG Plus
Example: Solar module ground at positive pole with
(1)
(2)
DC+
L
N
fuse or high ohm resistor
(1) Solar module (2) Inverter (3) Fuse / High ohm resistor
=~=
(3)
~
DC-
You can ground solar modules in the Fronius IG Plus using a fuse or a high ohm resistor.
PE
Fuse Holder on the Fronius IG Plus for So­lar Module Grounding
Fronius recommends a 1A fuse, size 10 x 38 mm for solar module grounding.
For solar module grounding using a high ohm resistor, Fronius recommends the "100 kOhm Grounding Kit" option only.
WARNING! An electric shock can be fatal. Incorrect or insufficient solar module grounding may result in an electric shock. If the solar module manufacturer requires solar module grounding in the inverter, this may only be provided via the specified fuse or the high ohm resistor "Ground­ing Kit 100 kohm" in compliance with IEC 62109-2.
61
Page 62
Safety
WARNING! An electric shock can be fatal. Danger presented by DC voltage from
solar modules that are exposed to light. When solar modules are grounded, the inverter's insulation monitoring is deactivated.
- Ensure that grounded solar modules are designed so that they are double in­sulated according to protection class II.
- Place the relevant safety labels in a clearly visible place on the photovoltaic system.
- Set the inverter so that a warning message is displayed if the fuse trips.
Safety label for the solar module ground
IMPORTANT! The safety labels and fuse for the solar module ground are not part of the scope of delivery for the inverter and
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechsel­richters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechsel­richters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.
Warnung!
Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. VorArbeiten an der Photovoltaik-k­AnlageAC- und DC-Seite spannungs­frei schalten.
must be obtained separately.
Setting inverters for grounded so­lar modules
Solar Module Ground: Inserting Fuse or "100 kohm Grounding Kit" Option
When solar modules are grounded, the inverter's insulation monitoring must be deactivat­ed. For this reason, the inverter must be configured in the second level of the Setup menu so that an error message is displayed or the inverter turns off when the ground fuse is blown (depending on the country setup). The access code 22742 must be entered in order to access the second level of the Setup menu.
NOTE! If the solar module manufacturer requires a ground for solar modules at the positive pole:
- Insert the "100 kohm Grounding Kit" option into the fuse holder completely with the plastic jacket
- Do not operate the inverter without the plastic jacket when using the "100 kohm Grounding Kit" option
or
- Insert the fuse with a fuse cover in the fuse holder
- Do not operate the inverter without a fuse cover
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.
62
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 solar module ground at the negative pole re­mains unaffected. Never touch the DC+ and DC-.
Page 63
Inserting a fuse: Inserting the "100 kohm Grounding
Kit" option:
1
1
1
1
1
1
*)
2
3
4
*) The plastic bolts are included in
the inverter scope of delivery
Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar mod­ule grounding.
Inserting the fuse will ground the solar module at the positive pole.
*)
2
3
*) Remove standard fuse holder with
plastic bolt
Insert the "100 kohm Grounding Kit" op­tion into the fuse holder completely with the plastic jacket
Inserting the "100 kohm Grounding Kit" option grounds the solar module at the positive pole via a high ohm resistor.
Opening Fronius IG Plus for Ser­vice/Maintenance
Procedure for opening the inverter for service or maintenance:
Disconnect AC and DC supply from the inverter
1
Open the connection area
2
Turn off DC main switch
3
Allow the capacitors to discharge (5 minutes)
4
Remove metal covers
5
If present, remove the fuse for the solar module ground
6
If present, remove string fuses
7
Disconnect DC wire
8
Disconnect AC wire
9
63
Page 64
Criteria for the Proper Selection of String Fuses
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
Effects of Using Underrated Fuses
Fuse Recommen­dations
The following criteria must be fulfilled for each solar module string when using fuse protec­tion:
-IN > 1.5 x I
-IN < 2.0 x I
-VN >/= 600 V DC
- Fuse dimensions: Diameter 10.3 x 35 - 38 mm
I
N
I
SC
V
With underrated fuses, the nominal current value may be less than the short circuit current of the solar module. Effect: The fuse may trip in intensive lighting conditions.
Nominal current rating of fuse Short circuit current for standard test conditions (STC) according to solar module
data sheet Nominal voltage rating of fuse
N
SC
SC
NOTE! Only select fuses suitable for a voltage of 600 V DC.
Application Ex­ample
Fuses
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.
e.g.: 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 1.5 times the short circuit current:
5.75 A x 1.5 = 8.625 A
The fuse that should be selected according to the "Fuses" table: KLK D 9 with 9.0 A and 600 V AC / DC
Nominal current Fuse Nominal current Fuse
4.0 A KLK D 4 9.0 A KLK D 9
5.0 A KLK D 5 10.0 A KLK D 10
64
Page 65
Nominal current Fuse Nominal current Fuse
6.0 A KLK D 6 12.0 A KLK D 12
7.0 A KLK D 7 15.0 A KLK D 15
8.0 A KLK D 8 20.0 A KLK D 20
'Fuses' table: Extract of suitable fuses, e.g. Littelfuse fuses
65
Page 66
Closing Fronius IG Plus
Closing Fronius IG Plus
1 2
1
1
1
2
3
3
3
3
2
1
4
1
2
66
Page 67
Inserting Option Cards
Suitable Option Cards
Safety
There are several options and system upgrades available for the inverter, e.g.:
- Datalogger and modem interfaces (for using a PC to record and manage data from your photovoltaic system)
- Various large displays (public display)
- Actuators / relays / alarms (signal card)
System upgrades come in the form of plug-in cards. The inverter can be equipped with three option cards.
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.
- Never work with live wires! Prior to all connection work, make sure that the AC and DC wires are not charged.
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.
Opening Fronius IG Plus
When adding option cards to the inverter, please follow all inverter safety instructions and information.
1 2
1
3
4
1
2
2
1
67
Page 68
Inserting option cards into the Fronius IG Plus
1 2
1
2
3
1
2
4
8
7
1
3 4
3
1
2
3
4
4
2
3
5
6
*
5
5
4
4
1
1
IMPORTANT! When networking several DATCOM components, a termination plug must be placed on each free IN and/or OUT connection of a DATCOM component.
Closing Fronius IG Plus
IMPORTANT! Close any unused openings at the sealing insert using corresponding
blanking plugs.
1 2
1
1
1
2
3
2
1
68
Page 69
3
3
3
4
1
2
69
Page 70
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 which 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 the data traffic and makes sure that even large volumes of data are distributed quickly and reliably.
The 'Fronius COM Card' option is required to integrate an 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 Fronius Datalogger.
Important Each inverter can only have one 'Fronius Com Card.' A network may only con­tain one Fronius Datalogger.
The first inverter with a 'Fronius COM card' can be up to 1000 m (3280 ft) away from the last inverter with a 'Fronius COM card.'
Different system upgrades are detected automatically by Solar Net.
In order to distinguish between 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.com.
Example Logging and archiving inverter and sensor data using a Fronius Datalogger and Fronius
Sensor Box:
Fronius IG Plus
IN
Com Card
OUT
12 3
Fronius IG Plus
PC
Com Card
Datalogger C.
OUT
RS 232
°C
Sensor Box
IN OUT
m/s
W/m²
Fronius IG Plus
IN
Com Card
OUT
IN
= Terminating plug
70
Page 71
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 a USB-interface and two RS-232 interfaces for connecting to a PC and a modem
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 RS422 interfaces - an input and an output. RJ45 plug connec­tors are used to connect to these cards.
71
Page 72
Commissioning
Factory Configu­ration
Start-up opera­tion
The inverter has been pre-configured in the factory and is ready for operation.
To change your inverter settings, please see "The Setup Menu" section in these instruc­tions.
Once the inverter has been connected to the solar modules (DC) and the public grid (AC), turn the main switch to position - 1 -.
NOTE! Regardless of whether bolts or fuses are used, do not operate the inverter without fuse covers.
NOTE! To ensure the degree of protection at the inverter:
- Insert blanking plugs into all openings at the sealing insert in which there are no cables
- If cables are run through the sealing insert, insert the remaining blanking plugs in the recesses located on the outside
1 2
1
2
ON
1
o
n
o
ff
AC
Setting Inverters for Available So­lar Module Ground
2
- As soon as the photovoltaic modules produce sufficient power, the Operating Status LED lights up orange. The screen displays the startup phase. The orange LED indi­cates that the feed-in mode of the inverter will begin shortly.
- After the automatic inverter start, the Operating Status LED lights up green.
- Provided that power continues to feed into the grid, the Operating Status LED will re­main green to confirm that the inverter is functioning correctly.
NOTE! If a solar module ground is used, the corresponding grounding mode must be set in the 'Basic Service Menu' after the inverter is turned on.
A 5-character access code is required to access the 'Basic Service Menu.' This access code will be provided by Fronius upon request.
If a solar module ground is being used, the status message 502 "Insulation value too low" will be displayed after the inverter is turned on and upon completion of the startup phase.
72
Page 73
Confirm the status message by pres-
1
sing the "Enter" key
The current insulation value is displayed.
Press the "Menu" key
2
The "menu" is displayed.
Select the "Setup" mode using the
3
"Left" or "Right" keys
Press the unassigned "Esc" key 5 x
4
"CODE" is displayed, the first digit flashes.
Use the "Up" and "Down" keys to
5
select the value for the first digit of the access code
Press the "Enter" key
6
The second digit flashes.
Use the "Up" and "Down" keys to
7
select a value for the second digit of the access code
Press the "Enter" key
8
The third digit flashes.
Use the "Up" and "Down" keys to
9
select a value for the third digit of the access code
Press the "Enter" key
10
73
Page 74
The fourth digit flashes.
Use the "Up" and "Down" keys to
11
select a value for the fourth digit of the access code
Press the "Enter" key
12
The fifth digit flashes.
Use the "Up" and "Down" keys to
13
select a value for the fifth digit of the access code
Press the "Enter" key
14
The access code flashes. *) ... Code example
*)
Press the "Enter" key
15
The inverter is now in the Basic Service menu, the first parameter is displayed:
- 'MIXMODE' for multiphase inverters
- 'DCMODE' for one-phase inverters
Use the "Up" or "Down" keys to select
16
the 'GNDMODE' parameter
Press the "Enter" key
17
The grounding mode is displayed.
Use the "Up" and "Down" keys to
18
select the grounding mode:
74
OFF = no solar module ground (factory set­ting)
Page 75
NEG = solar module ground at negative pole
POS = solar module ground at positive pole
-100 kohm = solar module ground at nega­tive pole using high ohm resistor
+100 kohm = Solar module ground at posi­tive pole using high ohm resistor
Press the "Enter" key to apply the re-
19
quired grounding mode
Press the "Esc" key to exit the Basic
20
Service menu
75
Page 76
Product Description Fronius IG Plus
Controls and Indi­cators
(1)
(6)
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)
(2)
(4) (3)
(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
Display 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 only 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.
76
Page 77
(1) (2)
(3) (4) (5)
(13)
(12)
(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
The value shown represents the maximum value within the period of observation (depending on which display mode is selected).
(6)
(7)
(9) (8)
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 are 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
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Page 78
Item Function
(12) Range for display value
for displaying the value
(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 invert-
er 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."
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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 can take from several seconds up to several minutes depending on local regulations. During the startup sequence the illumination of the Oper­ating Status LED is orange.
Test Procedure 1. Segment test
All display elements light up for about one second
2. Self test of important inverter components
- The inverter goes through a master check list for several seconds
- The display will show "TEST" as well as the component currently being tested
(e.g., "LED")
3. Synchronization with grid:
- "WAIT PS" is displayed, the inverter icon flashes: The inverter waits for all power
stage sets on the grid to be operational. This procedure is dependent on the DC voltage.
- Next, the display shows "SYNC AC," the grid icon flashes
4. Startup test
- Before the inverter begins feeding power into the grid, grid conditions are tested
according to local regulations.
- The display shows "START UP"
The startup test can take anything from just a few seconds up to several minutes de-
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pending on national regulations. The time elapsed is indicated by a bar shrinking from the top down.
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.
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Navigation in the Menu Level
Activating display illumination
Automatic switch to the "Now" dis­play mode or the startup phase
Accessing the Menu Level
Press any key
1
The display illumination is activated.
If no key is pressed for 30 seconds, the display backlight goes out (provided that the display illumination is set to automatic in the Setup menu).
The Setup menu also offers a choice between a permanently lit or permanently dark display.
If no key is pressed for 2 minutes:
- While power is being fed into the grid, the inverter automatically switches to the "Now" display mode and the present output power is displayed.
- If the inverter is not feeding power into the grid, the inverter automatically switches to the startup phase for synchronization with the grid.
The inverter switches to the "Now" display mode or startup phase from anywhere with­in the display modes or the Setup menu.
Press the "Menu" key (1)
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
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The Display Modes
The Display Modes
Selecting a Dis­play Mode
"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 avail-
able in combination with optional Fronius Datalogger
"Total" display mode ...... Displays values for power fed into the grid since the in-
verter was started for the first time
Accessing the menu level
1
Use the "left" (7) or "right" (6) keys to
(1) (2) (3) (4)
2
select your preferred display mode (1)
- (4)
Press "Enter" (5)
3
(7)
(6) (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.
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Overview of Dis­play Values
Display mode
"Now" W - Output power
"Day" kWh / MWh - Energy fed into the grid
"Year" Currency - Return
"Total" kg / T - CO2 reduction
Symbol Unit Optional Display value
V - Grid voltage
A - Output current
Hz - Grid frequency
V - Solar module voltage
A - Solar module current
Mohm - Insulation resistance
HH:MM x Time
W - Max. output power
V - Maximum grid voltage
x Optional
If the DatCom component for the required options is not available, the message "N.A." (not available) is shown.
V - Minimum grid voltage
V - Maximum array voltage
HH:MM - Service hours completed by the in-
verter
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Display Values in "Now" Display Mode
Selecting the "Now" Display Mode
Display values in the "Now" display mode
(1) (2)
Select the "Now" display mode
1
The first display value in the "Now" display mode appears
Use the "Down" (2) key to scroll to the
2
next display value
Scroll back using the "Up" key (1)
Output power
Power (in watts) currently being fed into the grid
The "Enter" key is active for the output power display if at least one of the following func­tions is available on the inverter:
- Reactive power mode
- Remote-controlled effective power reduction
- GVPR (Grid Voltage-dependent Power Reduction)
The availability of a function depends on the country setup, device-specific settings and the software version of electronic assemblies.
Reactive power mode:
- The current apparent power for the device is displayed in VA by pressing the "Enter" key.
- The current operating mode can be displayed by pressing the "Up" and "Down" keys.
Remote-controlled effective power reduction (if there is a Fronius Power Control Box/ Card in the Solar Net and a power reduction has been triggered by the utility company):
- Pressing the "Enter" key will display the power reduction as a percentage.
- You can display how long the power reduction has been in effect by pressing the "Up" and "Down" keys.
GVPR:
- Pressing the "Enter" key will display the activation time in SEC/GVPR (alternating).
You can use the "Up" and "Down" keys after pressing the "Enter" key to scroll through the existing parameters.
84
- You can return to the menu level by pressing the "Menu" key.
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Grid voltage
External conductor voltage (volts)
For example, phase voltage for phase L1:
For example, phase current for phase L3:
The "Enter" key is active for multi-phase inverters.
- The phase voltage can be displayed by pressing the "Enter" key.
- The phase voltage of the other phases can be displayed by pressing the "Up" and "Down" keys.
- You can return to the menu level by pressing the "Menu" key.
Output current
Current (in amperes) supplied to the grid at any particular moment
The "Enter" key is active for multi-phase inverters.
- The phase current can be displayed by pressing the "Enter" key.
- The phase current of the other phases can be displayed by pressing the "Up" and "Down" keys.
- You can return to the menu level by pressing the "Menu" key.
Grid frequency
(hertz)
Solar module voltage
Voltage of the solar modules at the mo­ment of data display (volts)
Solar module current
Current supplied by solar modules at the moment of data display (amperes)
Insulation resistance of photovoltaic system
(MOhm) For ungrounded solar modules
WARNING! An electric shock can be fatal. The positive and negative poles of the photovoltaic system should never be touched if the insulation resistance is less than 600 kOhm. An insulation resistance of < 600 kOhm may be due to an inad­equately insulated DC lead or defective solar modules. In the event that the insu­lation resistance is too low, you must contact your Fronius service partner.
The insulation resistance is the resistance between the positive or negative pole of the photovoltaic system and the earth potential. If an insulation resistance of > 600 kOhm is shown, this means that the photovoltaic system is adequately insulated.
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An insulation resistance of less than 600 kOhm indicates an error.
When the insulation resistance is less than 10 MOhm, the display differentiates between:
- negative potential of the ground (polarity sign '-')
- positive potential of the ground (polarity sign '+')
Display example of a negative potential (polarity sign '-') Short circuit between DC- lead and ground
Display example of a positive potential (polarity sign '+') Short circuit between DC+ lead and ground
GFDI status
for grounded solar modules 'GFDI OK' is displayed if there is no ground fault in the system
GFDI = Ground Fault Detector Interruptor
Time (datalogger option)
When the time on the inverter or a system add-on is changed, this changes the time on all devices connected via Solar Net.
Options If the DatCom component for the required options is not available, the message "N.A." (not
available) is shown.
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Display Values in "Day / Year / Total" Display Modes
General For the inverter, the day begins when it switches on. If the DC supply line is disconnected,
the following parameters within the "Day" display mode will be reset after repeating the startup:
- Return (currency can be selected)
-CO2 reduction (kg)
- Maximum output power (watts)
- Maximum grid voltage (volts)
- Minimum grid voltage (volts)
- Service hours completed by the inverter
If an optional Fronius Datalogger is available, the display values listed always apply to the whole day.
Selecting "Day / Year / Total" Dis­play Mode
First Display Value in the "Day" Display Mode:
(1) (2) (1) (2)
First Display Value in the "Total" Display Mode:
First Display Value in the "Year" Display Mode:
(1) (2)
Select the "Day" or
1
"Year" or "Total" display mode
The first display value in the selected dis­play mode appears.
Use the "Down" (2) key to scroll to the
2
next display value
Scroll back using the "Up" key (1)
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Display values in the 'Day / Year / Total' display modes
Output energy
Energy fed into the grid over the period of time in question (kWh / MWh)
Due to the variety of different monitoring systems, there can be deviations between the readings of other metering instruments and 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
Amount of money earned during the peri­od of time in question (currency can be se­lected in the 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 output ener­gy. The factory setting depends on the respective country-specific setting.
CO2 reduction
CO2 emissions saved during the monitored period (kg / T; T = tons) The area for unit display switches between ‘kg’ 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. The factory setting is 0.59 kg / kWh (source: DGS - the German Society for Solar Energy).
Maximum output power
Highest output power of the inverter during observation period (watts)
Maximum grid voltage
Highest reading of grid voltage (V) during observation period
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For example, maximum phase voltage for phase L1:
The 'Enter' key is active in the 'Total' dis­play mode depending on the country set­up or the device-specific settings.
- The maximum phase voltage mea­sured during the time in question can be displayed by pressing the 'Enter' key.
- The maximum phase voltage of the other phases measured during the time in question can be displayed by pressing the 'Up' and 'Down' keys.
- You can return to the menu level by pressing the 'Menu' key.
Minimum grid voltage
Lowest reading of grid voltage (V) during observation period
Maximum solar module voltage
Highest reading of solar module voltage (V) during 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 is not available, the message "N.A." (not
available) is shown.
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The Setup Menu
Presetting Following commissioning, the inverter is preconfigured according to the country setup.
The SETUP menu item enables you to easily customize the inverter’s preset parameters to your needs.
Accessing the Setup Menu
(1)
(4) (3) (2)
Switch to the menu level (press the
1
"Menu" key)
Select the "Setup" (1) mode using the
2
"Left" (4) or "Right" (3) keys
Press "Enter" (2)
3
The Setup Menu’s first menu item "STAND­BY" is shown.
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Scrolling through Menu Items
Example: "STANDBY" menu item Example: "CONTRAST" menu item
(1) (2) (1) (2)
Access the Setup menu
1
Scroll through the available menu items using the "Up" (1) and "Down" (2) keys
2
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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:"
WLAN AP
To maintain Standby operation:
- Press the "Esc" key
To end Standby operation:
- Press the "Enter" key
To activate/deactivate the Fronius Datama­nager 2.0 WLAN access point (e.g., to set up system monitoring)
Setting range MODE/SSID/KEY
MODE To activate/deactivate the WLAN access point
ON The WLAN access point is activated. OFF The WLAN access point is deactivated.
SSID* To display the Fronius network ID:
FRONIUS_240.xxxxx (5–8 digits) (scrolls through)
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KEY* To display the network password (8 digits)
* "SSID" and "KEY" values are only displayed when "MODE" is set to "ON".
If "MODE" is set to "OFF", "---" will be displayed.
Activating the WLAN access point
Requirement:
- There must be a Fronius Datamanager 2.0 plug-in card in the inverter or Fronius Solar Net, or
- There must be a Fronius Datamanager Box 2.0 in the Fronius Solar Net.
Select the "WLAN AP" menu item
1
Press the "Enter" key
2
"MODE" is displayed.
Press the "Enter" key
3
The current WLAN access point status is displayed:
ON The WLAN access point is activated.
If the IP switch of the Fronius Datamanager 2.0 plug-in card or Fronius Dataman­ager Box 2.0 is activated, then arrows and "Enter" are hidden:
CONTRAST
Settings cannot be changed.
OFF The WLAN access point is deactivated.
To activate the WLAN access point, select "ON" using the "Up" or "Down" keys
4
Press the "Enter" key
5
The WLAN access point is activated and stays open for one hour.
Press the "Esc" key to exit the menu
6
"MODE" is displayed.
To select the "SSID" and "KEY" points, use the "Up" or "Down" keys and press the "Enter" key to display them.
Contrast setting on LCD display
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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.
LIGHT MODE
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
CO2
Sets the currency and charge rate for the output energy to the grid
Unit -
Display area Currency / Charge rate / kWh
Factory setting (depends on the country setting)
Setting of CO2 reduction factor
Unit kg/kWh, T/kWh
Setting range 00,01 - 99,99
Factory setting 0.59 kg/kWh
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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
Offset is an amount of energy (in Wh, kWh, or MWh) that can be added to the lifetime total energy output of the inverter to give it a ‘head start.’
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
IG no.
DAT COM
Unit %
Setting range -5.0 - +5.0 in increments of 0.1
Factory setting 0
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.
Indicates status of data transmission, func­tion test or activates and resets various op­tion (e.g., Fronius Signal Card, Fronius Personal Display Card, Fronius Interface Card, Fronius TAC Card, etc.)
Setting range Displays OK COM or ERROR COM;
SIGCD TEST / PDCD RST / IFCD RST / TAC TEST
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OK COM / ERROR COM
Displays data communication available via Solar Net or an error that occurred in data com­munication
Examples of options:
SIGCD TEST
Function test for the Fronius Signal Card option
When the "Energy Management" function is activated, the function test for the Fronius Sig­nal Card cannot be carried out.
PDCD RST
Resets the Fronius Personal Display Card option
IFCD RST
Resets the Fronius Interface Card option
TAC TEST
Function test for the Fronius Power Relay Card (TAC) option
TIME
LIMIT CFG
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.
Used to display settings relevant to a power supply company. The displayed values de­pend on the respective country setup or de­vice-specific inverter settings.
Display range U IL Max / U IL/TRIP* Max / U IL Min / U IL/TRIP* Min / U OL
Max / U OL/TRIP* Max / U OL Min / U OL/TRIP* Min / U RC Max / U RC Min / U LL FREQ IL Max / FREQ IL/TRIP* Max / FREQ IL Min / FREQ IL/ TRIP* Min / FREQ OL Max / FREQ OL/TRIP* Max / FREQ OL Min / FREQ OL/TRIP* Min / FREQ RE Max / FREQ RE Min START TIME/INIT* / START TIME/RCON* AGF / EMI COMP / POWER LIM / MIX MODE
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* Alternating display, e.g.:
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IL "Inner Limit" OL "Outer Limit"
Different clearing times can be assigned to the inner limit IL and the outer limit OL depend­ing on the country setup or device-specific settings. E.g.:
- Short clearing time for a deviation from the outer limit
- Longer clearing time for a deviation from the inner limit
U IL Max
Upper inner grid voltage limit in V
U IL/TRIP Max
Clearing time for exceeding the upper inner grid voltage limit in P**
U IL Min
Lower inner grid voltage limit in V
U IL/TRIP Min
Clearing time for falling below the lower inner grid voltage limit in P**
U OL Max
Upper outer grid voltage limit in V
U OL/TRIP Max
Clearing time for exceeding the upper outer grid voltage limit in P**
U OL Min
Lower outer grid voltage limit in V
U OL/TRIP Min
Clearing time for falling below the lower outer grid voltage limit in P**
U RC Max
"Reconnection" Upper voltage limit for reconnection to the public grid after disconnection due to an unac­ceptable parameter deviation
U RC Min
"Reconnection" Lower voltage limit for reconnection to the public grid after disconnection due to an unac­ceptable parameter deviation
U LL
"Longtime Limit" Voltage limit in V for the voltage average determined over a longer time period
FREQ IL Max
Upper inner grid frequency limit in Hz
FREQ IL/TRIP Max
Clearing time for exceeding the upper inner grid frequency limit in P**
FREQ IL Min
Lower inner grid frequency limit in Hz
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FREQ IL/TRIP Min
Clearing time for falling below the lower inner grid frequency limit in P**
FREQ OL Max
Upper outer grid frequency limit in Hz
FREQ OL/TRIP Max
Clearing time for exceeding the upper outer grid frequency limit in P**
FREQ OL Min
Lower outer grid frequency limit in Hz
FREQ OL/TRIP Min
Clearing time for falling below the lower outer grid frequency limit in P**
** P = grid periods; 1 P corresponds to 20 ms at 50 Hz and 16.66 ms at 60 Hz
FREQ RC Max
"Reconnection" Upper grid frequency limit for reconnection to the public grid after disconnection due to an unacceptable parameter deviation
FREQ RC Min
"Reconnection" Lower grid frequency limit for reconnection to the public grid after disconnection due to an unacceptable parameter deviation
START TIME/INIT
Startup time of the inverter in s
START TIME/RCON
Reconnection time in s after a grid error
AGF
"Advanced Grid Features"
Display range Q MODE / GPIS / GFPR / FULL/LVRT
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Q MODE Mode for reactive power specification
- CONST / COSP*** Constant cos phi specification
- CONST / Q REL*** Constant specification of the relative reactive power in %
- CONST / Q ABS*** Constant specification of an absolute reactive power in var
- COSP (P) cos phi specification depending on the effective power
- Q (U) Relative reactive power specification regarding the current grid voltage
- Q (P) Relative reactive power specification depending on the ef­fective power
- OFF The inverter is operating in the pure effective power range (cos phi = 1)
GPIS "Gradual Power Increment at Startup"
SoftStart function regarding how fast the inverter should in­crease the power
ON / OFF / N.A.
GFPR "Grid Frequency Depending Power Reduction"
Power reduction depending on the grid frequency
ON / OFF / N.A.
FULL / LVRT*** "Low Voltage Ride Through"
Function for bridging a grid voltage gap that was caused by grid voltage parameters outside of the limits
ON / OFF / N.A.
EMI COMP
Compensation of the EMC filter during operation
ON / OFF / N.A.
POWER LIM
Constant apparent power limiting
MIX MODE
DC operating type
*** alternating display N.A. not available
- Press the "Enter" key to display the respective value
- Press "Esc" to exit the displayed value
STATE PS
Status display of power stage sets; the last error that has occurred can be displayed
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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.
VERSION
Displays the version number and serial number of 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 data of IG Brain unit (inverter control)
LCD Display version data
PS Power stage set version data (PS00 - max. PS02)
SETUP Display of current country setup
The current country setup is displayed (2-3 letters) by pressing the "Enter" key, e.g., "DE" for Germany country setup; Exit the Country Setup display by pressing the "Esc" key
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