Fronius IG Plus 35, Fronius IG Plus 50, Fronius IG Plus 70, Fronius IG Plus 100, Fronius IG Plus 120 Operating Instructions Manual

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Fronius IG Plus 35 / 50 / 70 / 100 / 120 / 150

42,0426,0062,EA 022009

Operating Instructions

Inverter for grid-connected photovoltaic systems

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Dear Fronius Customer,

Thank you for choosing Fronius - and congratulations on your new, high-quality, hightech Fronius product. This introduction should provide you with general information about the equipment. Please read it carefully to learn about the many great features of your new Fronius product. This is the best way to get the most out of all the advantages that it has to offer.

Please also note the safety information and the safety precautions for the product installation location. Following all product instructions will ensure long-lasting quality and reliability. And these are the essential ingredients for outstanding results.

Introduction

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Safety Instructions

DANGER!

WARNING!

CAUTION!

“NOTE“ indicates a situation which could adversely affect work results and

may cause damage to equipment.

NOTE

This equipment has been manufactured using state-of-the-art technology and in accordance with general safety regulations. However, incorrect operation or misuse may endanger:

- the life and well-being of the operator or third parties

- the equipment and other property of the owner/operator

- the efficient operation of the equipment.

All persons involved with equipment startup, service and maintenance must:

- be suitably qualified

- be familiar with electrical installations

- have completely read and followed these operating instructions

The operating instructions must be available at the equipment location at all times. In addition to the operating instructions, all applicable local rules and regulations regarding accident prevention and environmental protection must also be followed.

All safety instructions and warning signs on the equipment itself:

- must be maintained in legible condition

- must not be damaged

- must not be removed

- must not be covered or painted over

General

Important

“DANGER!“ indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury.

“WARNING!“ indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury.

“CAUTION!“ indicates a potentially harmful situation which, if not avoided, may result in minor and moderate injury or property damage.

“Important“ indicates practical tips and other useful information. It is not a signal word for a harmful or dangerous situation.

Please pay special attention when one of the above symbols appears in the manual.

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Maintenance and repair may only be carried out by an authorized specialist.

The use of third-party parts does not guarantee that they were designed and manufactured according to operational demands and safety requirements. Use only original spare parts (also applies to standard parts).

Do not carry out any alterations, installations or modifications to the device without first obtaining the manufacturer’s permission.

Immediately replace any components that are not in perfect condition.

The equipment may only be operated in compliance with its intended use.

Any other purpose does not constitute intended use. The manufacturer is not responsible for any damages resulting from unintended use.

Intended use also includes:

- reading and complying with all general information as well as safety information and warnings from the operating instructions

- compliance with all inspection and maintenance requirements

- installation as per operating instructions

Where appropriate, the following guidelines should also be applied:

- Utility company regulations regarding grid feed-in

- Information from solar module manufacturer

Intended Use

For information about where the safety instructions and warning signs are located on the equipment, please refer to the “General“ section of your equipment’s operating instructions.

Any equipment malfunctions which might impair safety must be remedied immediately before the device is turned on.

Your safety is at stake.

General

(continued)

Operation and/or storage of the device outside of the stipulated range does not constitute intended use. The manufacturer is not responsible for any damages resulting from unintended use.

Please refer to the technical data in your operating instructions for information about permitted ambient conditions.

Ambient Conditions

Qualified Personnel

The service information in these operating instructions is only intended for qualified personnel. An electrical shock can be fatal. Please do not carry out any activities other than those referred to in the documentation even if you are suitably qualified.

All cables and wires must be secured, undamaged, insulated and adequately dimensioned. Loose connections, scorched, damaged or under-dimensioned cables and wires must be repaired immediately by an authorized specialist.

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III

Safety Precautions at Equipment Location

When installing devices with air vents, make sure that cool air can flow freely through the vents unobstructed. The device should only be operated in accordance with the protection class listed on the rating plate.

EMC Device Classifications

Devices of emission class A:

- Are only for use in industrial areas.

- Can cause line-bound and radiated interference in other areas.

Devices of emission class B:

- Meet the emission requirements 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 rating plate or technical data

EMC Precautions In special cases, there may still be interference for the specified application

area despite maintaining standardized emission limit values (e.g. when sensitive equipment is located at the setup location or when the setup location is near radio or television receivers). In this case, the operator is obliged to take proper action to rectify the situation.

Grid connection

Devices with a high output (> 16 A) can influence the voltage quality of the grid due to a high current input into the main supply. This can affect several device types in the form of:

- Connection limitations

- Requirements regarding permitted mains impedance

- Requirements regarding minimum required short circuit power

for each interface to the public grid

See technical data

In this case, the operator or the user of the device must make sure whether or not the device may be connected, if necessary by contacting the power supply company.

Information on Noise Emission Values

The inverter generates a maximum sound power level of <80dB(A) (ref. 1pW) at full-load operation according to IEC 62109-1.

The cooling of the device takes place via an electronic temperature control system at the lowest possible noise level and depends on the power used, ambient temperature and the soiling level of the device, etc.

A workplace-related emissions value cannot be provided for this device because the actual noise level that occurs depends strongly on the installation situation, the grid quality, the surrounding walls and the general properties of the space.

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Equipment with the CE marking fulfils the basic requirements of the Guideline Governing Low-Voltage and Electromagnetic Compatibility. (For more information, please see the attachment and/or the “Technical Data“ section in your documentation).

Safety Markings

The user is responsible for backing up data relating to changes made to factory settings. The manufacturer will not accept liability if personal settings are deleted.

Data Security

The manufacturer maintains the copyright to these operating instructions.

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. We would be grateful for any comments or suggestions regarding improvements and/or error corrections for the operating instructions.

This device should not be disposed of in residential waste. To comply with European Directive 2002/96/EC on Waste Electrical and Electronic Equipment and its implementation as national law, electrical equipment that has reached the end of its life must be collected separately and returned to an approved recycling facility. Any device that you no longer require must be returned to your dealer or you must find an approved collection and recycling facility in your area. Ignoring this EU Directive may have adverse affects on the environment and your health.

Disposal

Danger of damage to electronic components due to electrostatic discharge. Take appropriate ESD precautions when replacing and installing components.

ESD Precautions

Electrical Installations

Electrical installations may only be carried out in accordance with relevant national and local standards and regulations.

The device should only be operated when all safety equipment is fully functional. If safety equipment is not fully functional, there is a danger to:

- the life and well-being of the operator or third parties

- the equipment and other property of the owner/operator

- the efficient operation of the equipment

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 equipment.

Safety Precautions in NormalOperation

Table of Contents

General Information 7

Operator and Equipment Protection .................................................................................. 9

Safety............................................................................................................................. 9

Operator and Equipment Protection .............................................................................. 9

Galvanic Isolation .......................................................................................................... 9

Monitoring the mains network ........................................................................................ 9

The Fronius IG Plus in the Photovoltaic System .............................................................. 10

General ........................................................................................................................ 10

Tasks............................................................................................................................ 10

Converting DC to AC current ....................................................................................... 10

Fully Automatic Operational Management ................................................................... 10

Display Function and Data Communication ................................................................. 10

System Upgrades ......................................................................................................... 11

Inverter Cooling using Forced-air Ventilation ................................................................11

Power Derating .............................................................................................................11

Installation and Startup 13

Fronius IG Plus Installation and Connection .................................................................... 15

Fronius IG Plus Setup.................................................................................................. 15

Overview ...................................................................................................................... 15

Fronius IG Plus Connection Options ................................................................................ 16

Fronius IG Plus Connection Options ........................................................................... 16

Target Punch-outs on the Fronius IG Plus ....................................................................... 18

General ........................................................................................................................ 18

Target Punch-outs for Cable Inputs ............................................................................. 18

Location Selection............................................................................................................ 20

General Location Selection.......................................................................................... 20

Location Selection for Inside Installation ..................................................................... 21

Location Selection for Outside Installation................................................................... 21

Fronius IG Plus Installation .............................................................................................. 22

Attaching Wall Bracket................................................................................................. 22

Fronius IG Plus Installation .......................................................................................... 23

Connecting the Fronius IG Plus to the Public Grid (AC) .................................................. 24

Monitoring the Mains Network ..................................................................................... 24

Installations with Several Inverters .............................................................................. 24

AC-side Terminals........................................................................................................ 24

Connecting Aluminum Cables ...................................................................................... 25

Cross Section of AC Cable .......................................................................................... 25

Safety........................................................................................................................... 25

Connecting the Fronius IG Plus to the Public Grid (AC) .............................................. 26

Fuse Recommendation for the AC-side ....................................................................... 26

Connecting Solar Module Strings to the Fronius IG Plus (DC) ........................................ 27

General Information About Solar Modules ................................................................... 27

Safety........................................................................................................................... 27

DC-Terminals ............................................................................................................... 28

Connecting Aluminum Cables ...................................................................................... 28

Overview ...................................................................................................................... 29

Ungrounded System: Connecting Solar Module Strings .................................................. 30

Cable Cross Section of Solar Module Strings .............................................................. 30

Ungrounded System: Connecting Solar Module Strings.............................................. 30

Selecting String Fuses ................................................................................................. 32

Using String Fuses in Fronius IG Plus ......................................................................... 32

Criteria for the Proper Selection of String Fuses.............................................................. 33

General ........................................................................................................................ 33

Criteria for the Proper Selection of String Fuses ......................................................... 33

Effects of using underrated fuses ................................................................................ 33

Fuse Recommendations - Application Example .......................................................... 33

Fuses ...........................................................................................................................34

Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16

mm² .................................................................................................................................. 35

General ........................................................................................................................ 35

Additional Required Components ................................................................................ 35

Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section >

16 mm²......................................................................................................................... 35

Solar Module Ground at Negative Pole: Connecting Solar Module Strings ..................... 38

General ........................................................................................................................ 38

Cable Cross Section of Solar Module Strings .............................................................. 38

Solar Module Ground at Negative Pole: Connecting Solar Module Strings ................. 38

Selecting String Fuses ................................................................................................. 40

Using String Fuses in Fronius IG Plus ......................................................................... 40

Criteria for the Proper Selection of String Fuses.............................................................. 41

General ........................................................................................................................ 41

Criteria for the Proper Selection of String Fuses ......................................................... 41

Effects of using underrated fuses ................................................................................ 41

Fuse Recommendations - Application Example .......................................................... 41

Fuses ...........................................................................................................................42

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm² .................................................................................................. 43

General ........................................................................................................................ 43

Additional Required Components ................................................................................ 43

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm² .............................................................................................. 44

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm² .............................................................................................. 45

Solar Module Ground at Negative Pole for Fronius IG Plus............................................. 47

General ........................................................................................................................ 47

Solar Module Ground at Negative Pole ....................................................................... 47

Solar Module Ground at Negative Pole for Fronius IG Plus ........................................ 47

Safety........................................................................................................................... 48

Setting Inverters for Grounded Solar Modules............................................................. 48

Solar Module Ground: Inserting Fuses ........................................................................ 48

Opening Fronius IG Plus for Service/Maintenance ...................................................... 49

Solar Module Ground at Positive Pole: Connecting Solar Module Strings ....................... 50

General ........................................................................................................................ 50

Cable Cross Section of Solar Module Strings .............................................................. 50

Solar Module Ground at Positive Pole: Connecting Solar Module Strings................... 50

Selecting String Fuses ................................................................................................. 52

Using String Fuses in Fronius IG Plus ......................................................................... 53

Criteria for the Proper Selection of String Fuses.............................................................. 54

General ........................................................................................................................ 54

Criteria for the Proper Selection of String Fuses ......................................................... 54

Effects of using underrated fuses ................................................................................ 54

Fuse Recommendations - Application Example .......................................................... 54

Fuses ...........................................................................................................................55

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm² .................................................................................................. 56

General ........................................................................................................................ 56

Additional Required Components ................................................................................ 56

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm² .............................................................................................. 57

Solar Module Ground at Positive Pole for Fronius IG Plus .............................................. 60

General ........................................................................................................................ 60

Solar Module Ground at Positive Pole ......................................................................... 60

Solar Module Ground at Positive Pole for Fronius IG Plus .......................................... 60

Safety........................................................................................................................... 61

Setting Inverters for Grounded Solar Modules............................................................. 61

Solar Module Ground: Inserting Fuses ........................................................................ 61

Opening Fronius IG Plus for Service/Maintenance ...................................................... 62

Closing Fronius IG Plus ................................................................................................... 63

Closing Fronius IG Plus ............................................................................................... 63

Inserting Option Cards ..................................................................................................... 64

Suitable Option Cards.................................................................................................. 64

Safety........................................................................................................................... 64

Opening Fronius IG Plus ............................................................................................. 64

Inserting Option Cards ................................................................................................. 65

Closing Fronius IG Plus ............................................................................................... 65

Solar Net and Data Interface ....................................................................................... 66

Example ....................................................................................................................... 67

Commissioning ................................................................................................................ 68

Factory Configuration .................................................................................................. 68

Commissioning ............................................................................................................ 68

Operation 69

Fronius IG Plus Device Description ................................................................................. 71

Controls and Indicators ................................................................................................ 71

Display .........................................................................................................................71

Startup Phase .............................................................................................................. 73

Test Procedure............................................................................................................. 73

LED Operating Status .................................................................................................. 75

Navigating Around the Display ......................................................................................... 77

Activating Display Illumination ..................................................................................... 77

Accessing Menus......................................................................................................... 77

Selecting a display mode ............................................................................................. 78

Scrolling Between Display Values ................................................................................ 78

Overview of Display Values ......................................................................................... 79

Display Modes ................................................................................................................. 80

Display Modes ............................................................................................................. 80

Overview ...................................................................................................................... 80

Display Values in ‘Now’ Display Mode ............................................................................. 81

Selecting ‘Now’ Display Mode ...................................................................................... 81

Display Values in ‘Now’ Display Mode ......................................................................... 81

Options ........................................................................................................................ 83

Display Values in ‘Day / Year / Total’ Display Mode.......................................................... 84

General ........................................................................................................................ 84

Selecting ‘Day / Year / Total’ Display Mode .................................................................. 84

Display Values in ‘Day / Year / Total’ Display Mode ..................................................... 85

Options ........................................................................................................................ 87

The Setup Menu .............................................................................................................. 88

Default Settings ........................................................................................................... 88

Opening the setup menu ............................................................................................. 88

Scrolling through Menu Options................................................................................... 89

Menu Options in the Setup Menu ................................................................................ 89

Setting and Displaying Menu Options .............................................................................. 92

General Menu Option Settings .................................................................................... 92

Setting the ‘Standby’ Menu Option............................................................................... 92

Setting the ‘CONTRast’ menu option ........................................................................... 93

Setting the ‘LIGHTmode’ menu option......................................................................... 93

Setting the ‘CASH’ Menu Option.................................................................................. 94

Setting the ‘CO2’ Menu Option .................................................................................... 96

Setting the ‘YIELD’ Menu Option ................................................................................. 97

Setting the ‘IG No.’ Menu Option ............................................................................... 100

Setting the ‘DATcom’ Menu Option ............................................................................ 101

Setting the ‘TIME’ Menu Option ................................................................................. 103

Displaying the ‘STATEps’ menu option ...................................................................... 106

Displaying the ‘VERSIon’ menu option ...................................................................... 107

Troubleshooting and Maintenance 111

Status Diagnosis and Troubleshooting............................................................................ 113

Display of Status Messages ........................................................................................113

General Status Messages ...........................................................................................113

Total failure ................................................................................................................. 113

Status Messages for a Fronius IG Plus with Several Power Modules ........................ 114

Status Messages - Class 1 ......................................................................................... 115

Status Messages - Class 3 ......................................................................................... 117

Status Messages - Class 4 ......................................................................................... 119

Status Messages - Class 5 ........................................................................................ 125

Customer Service ...................................................................................................... 128

Maintenance .................................................................................................................. 129

Safety......................................................................................................................... 129

General ...................................................................................................................... 129

Operation in Environments with a Strong Formation of Dust ..................................... 129

Opening Fronius IG Plus for Service/Maintenance .................................................... 130

Replacing String Fuses .................................................................................................. 131

Safety......................................................................................................................... 131

Before Installing ......................................................................................................... 131

Replacing Fuses ........................................................................................................ 132

Finally... ...................................................................................................................... 132

Appendix 133

Technical Data ............................................................................................................... 135

Fronius IG Plus 35 ..................................................................................................... 135

Fronius IG Plus 50 ..................................................................................................... 136

Fronius IG Plus 70 ..................................................................................................... 137

Fronius IG Plus 100 ................................................................................................... 138

Fronius IG Plus 120 ................................................................................................... 139

Fronius IG Plus 150 ................................................................................................... 140

Explanation of footnotes ............................................................................................ 140

Relevant Standards and Directives ................................................................................ 141

CE Mark ..................................................................................................................... 141

Parallel Operation of In-Plant Power Generation Systems ........................................ 141

Switching to Prevent Stand-alone Operation ............................................................. 141

Grid Failure ................................................................................................................ 141

Relevant Standards and Directives ............................................................................ 141

Warranty and Disposal................................................................................................... 142

Warranty Provisions and Liability............................................................................... 142

Exclusions to Warranty Claims .................................................................................. 142

Warranty Claim Requirements................................................................................... 142

Scope of Warranty ..................................................................................................... 142

Warranty Period ......................................................................................................... 143

Proof of Warranty....................................................................................................... 143

Disposal ..................................................................................................................... 143

General Information

Safety

WARNING! If the equipment is used or tasks are carried out

incorrectly, serious injury or damage may result. The Fronius IG Plus should only be installed by trained service personnel in accordance with technical regulations. It is essential that you read the „Safety Regulations“ chapter before installation or before carrying out any maintenance work.

The design and functionality of the Fronius IG Plus provides maximum safety for both installation and operation.

The Fronius IG Plus provides operator and equipment protection through: a) galvanic isolation b) monitoring the mains network

Operator and Equipment Protection

Galvanic Isolation

The Fronius IG Plus is equipped with a high frequency transformer that provides galvanic isolation between the DC side and the grid, thus ensuring the highest possible safety.

In the event of abnormal conditions in the mains network (e.g. grid disconnection or interruption), the Fronius IG Plus will stop working immediately and stop feeding current into the grid.

Mains network monitoring is carried out using:

- Voltage monitoring

- Frequency monitoring

Monitoring the mains network

The Fronius IG Plus solar inverter is a highly sophisticated link between the solar modules and the public grid.

General

The Fronius IG Plus in the Photovoltaic System

The Fronius IG Plus converts the direct current (DC) generated by the solar modules into alternating current (AC). This alternating current is fed synchronously into your house’s mains voltage network or the public grid.

Important The Fronius IG Plus was developed exclusively for use with grid-connected photovoltaic systems. Power generation independent from the public grid is not possible.

Converting DC to AC current

The operation of Fronius IG Plus is fully automatic. As soon as enough power is being generated after sunrise, the control module begins monitoring the mains voltage and frequency. When the sunlight has reached a sufficient level of irradiation, the photovoltaic inverter will start the feed in operation.

The Fronius IG Plus operates in such a way as to ensure that the maximum power possible is obtained from the solar modules. This function is called „Maximum Power Point Tracking“ (MPPT).

As soon as the available power is no longer sufficient to feed into the grid after dusk, the Fronius IG Plus disconnects completely from the grid and shuts down. All settings and data are saved.

Fully Automatic Operational Management

Tasks The main tasks of the Fronius IG Plus include:

- Converting DC to AC current

- Fully automatic operational management

- Display function and data communication

The display on the inverter is the interface between the inverter and the operator. The design of the display is geared towards simple operation and making system data available as long as the inverter operates.

Display Function and Data Communication

(continued)

The Fronius IG Plus has a basic function for providing minimum and maximum values on a daily and total basis. These values are shown on the display.

The display also provides the option of showing the following weather data:

- 2 different temperature values (e.g. temperature at the solar modules, outside temperature in the shade)

- Solar radiation

A wide range of data communication elements also enables a multitude of logging and display options.

The Fronius IG Plus is designed for various system upgrades, e.g.:

- Upgrades that enable Fronius IG Plus to communicate with external system upgrades as well as other inverters

- Datalogger (for using a PC to record and manage data from your photovoltaic system), includes Datalogger and modem interface

- Various large-format displays

- Living room display

- Actuators (e.g.: relays, alarms)

- Sensors (e.g. for temperature, irradiance, energy measurement, etc.)

- Interface cards

System upgrades are available as plug-in cards.

In the event that the heat cannot be dissipated even with the fan working at maximum speed, a process known as power derating is initiated in order to protect the Fronius IG Plus (e.g. in switch boxes that do not have an appropriate heat dissipation system).

A power derating system briefly restricts the output from the Fronius IG Plus in order to prevent the temperature from exceeding the permissible value. The Fronius IG Plus will continue to operate without any downtimes for as long as possible.

System Upgrades

Inverter Cooling using Forced-air Ventilation

Power Derating

The temperature-controlled and speed-controlled ball bearing fan of the Fronius IG Plus provides:

- optimal inverter cooling

- higher efficiency

- cooler components, thus improving service life

- lowest possible energy consumption and lowest possible noise level

Installation and Startup

Fronius IG Plus Installation and Connection

Fronius IG Plus Setup

Connection area

Power module(s)

Overview ‘Fronius IG Plus Installation and Connection’ contains the following sec-

tions:

- Fronius IG Plus Connection Options

- Target Punch-outs on the Fronius IG Plus

- Location Selection

- 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

Connection area and power module on the Fronius IG Plus

The power module and the connection area are separated from each other for delivery.

Fronius IG Plus Connection Options

Connections on the Fronius IG Plus

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 cable (4) 6 DC+ fuse holders (5) Jumper slot SMOFF (6) DC- main switch cable (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 the solar module ground (12) Strain relief device for plug-in card cable (13) AC-side terminals

(11)

(13)

(12)

(2)(3)(1) (9)(8)(4) (7)(5)

(15)(16) (14)(17)(18)

(10)(6)

Fronius IG Plus Connection Options

(continued)

Item Description

(14) Metric screw joint M32 or M40 (AC connection) (15) 6 DC- terminals (16) Strain relief device for solar module strings (17) 6 DC+ terminals (18) DC main switch

Target Punchouts for Cable Inputs

The Fronius IG Plus contains several target punch-outs of different sizes. When punched out, the openings are used for the inputs of various cables.

Target Punch-outs on the Fronius IG Plus

General

Target punch-outs on the back and inside base of the Fronius IG Plus

Item Description

(1) 4 back cable inputs:

Diameter 34.5 / 28 and 28 / 22.5 mm

Cable openings that lead through the back to the inverter

NOTE When using back cable inputs:

- seal all open spaces at IP45

- use an edge guard to avoid damaging the cable

(2) 2 cable inputs for metric screw joint M32

(for DC cable with a cable cross section > 16 mm²) (3) 12 cable inputs for 6 solar module strings DC

(for a cable diameter of 5 - 9.2 mm) (4) Cable input for plug-in card cable

(3)

(4)

(2)

(1)

Target Punchouts for Cable Inputs

(continued)

NOTE

- The target punch-outs made from plastic as well as the larger ones made from metal should only be removed from the outside in.

- The smaller target punch-outs made from metal should be removed from the inside out.

- You should only remove the number of punch-outs required for the available cables (e.g. 6 openings for 3 module strings)

The plastic punch-outs are also equipped with center holes so that they can be drilled out if required.

Location Selection

Please note the following criteria when selecting a location for the Fronius IG Plus:

It should only be installed on a stable, vertical wall Max. ambient temperatures: -20 °C / +50 °C (-4 °F / +122.00 °F) For use at altitudes above sea level: up to 2000 m

General Location Selection

300 mm

50 mm

200 mm

The air flow direction within the inverter runs from right to left (cold air intake right, warm air exhaust left).

If the Fronius IG Plus is installed in a switch box (or similar enclosed area), then forced-air ventilation must be provided to ensure adequate heat dissipation.

The Fronius IG Plus is designed for installation both indoors and outdoors.

- There should be a 200 mm (7.8 in) clearance on both sides of the Fronius IG Plus for the cool air vents.

- Maintain a side distance of 300 mm (11.8 in) between individual Fronius IG Plus units.

Because of its IP 44 protection class, the Fronius IG Plus is not susceptible to water spray from all directions

In orderto protect the Fronius IG Plus display, it should not be exposed to direct sunlight. Ideally, the Fronius IG Plus should be installed in a protected location, e.g. near the solar modules or under a roof overhang.

Location Selection for Outside Installation

Do not install the Fronius IG Plus near living areas because it may emit a small amount of noise under certain operating conditions.

Do not install the Fronius IG Plus in:

- Rooms with a large formation of dust

- Rooms with a large formation of dust with conductive particles (e.g.

iron filings)

- Rooms with corrosive gases, acids or salts

- Rooms 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 pro-

ducts

- Rooms used in the preparation of grain, green fodder or animal feeds

- Greenhouses

Location Selection for Inside Installation

Fronius IG Plus Installation

Attaching Wall Bracket

Important! Depending on the surface, different dowels and screws may

be required for installing the wall bracket. These dowels and screws are not part of the scope of delivery for the Fronius IG Plus. The installer is responsible for selecting the proper dowels and screws.

NOTE The Fronius IG Plus should only be installed upright on the wall.

6 x

Only for Fronius IG Plus 120 / 150:

Because of logistical limits, the wall bracket for the Fronius IG Plus 120 and Fronius IG Plus 150 is divided into two parts.

- Assemble wall bracket as per work step 1

Important! When installing the wall bracket care should be taken to ensure that the display mark (*) on the wall bracket remains at eye level.

min. 50 mm min. 2 in.

(*)

Fronius IG Plus Installation

NOTE For Fronius IG Plus 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 module is hung on the wall bracket and fixed to the connector

Connecting the Fronius IG Plus to the Public Grid (AC)

AC-side Terminals

One-phase inverter

Three-phase inverter

Two-phase inverter

Legend:

L1 Phase conductor L2 Phase conductor L3 Phase conductor PE PE conductor N Neutral conductor (a) Terminal for grounding rod (b) Terminal for possible grounding

of the solar module frame

max. cable cross section 25 mm²

Important The resistance in the leads to the AC side connection terminals must be as low as possible for optimal functioning of mains network monitoring.

Monitoring the Mains Network

For large photovoltaic systems, several Fronius IG Plus units can be connected in parallel. To ensure symmetrical feeding, connect the inverters uniformly to all 3 phases.

Installations with Several Inverters

(a)(b) (c)

(a)(b) (c) (a)(b) (c)

NOTE Make sure that the network neutral conductor is grounded.

For metric screw joint M32: Cable diameter 11 - 21 mm

For metric screw joint M40: Cable diameter 19 - 28 mm

If required, use reducers for smaller cable diameters.

Cross Section of AC Cable

WARNING! An electrical shock can be fatal. Danger from

mains voltage and DC voltage from solar modules.

- The connection area should only be opened by a licensed electrician.

- The separate power module area should only be disconnected from the connection area after first being disconnected from the mains power.

- The separate power module area should only be opened by Fronius-trained service personnel.

Before making any connections, make sure that the AC and DC sides are disconnected from the inverter.

Safety

NOTE The AC side terminals are not designed for connecting

aluminum cables.

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

Connecting Aluminum Cables

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.

Fuse Recommendation for the AC-side

Inverter Phases Nominal Fuse

capacity protection

Fronius IG Plus 35 - 1 1 3.5 kW 1 x C 20 A Fronius IG Plus 50 - 1 1 4 kW 1 x C 25 A Fronius IG Plus 70 - 1 1 6.5 kW 1 x C 40 A Fronius IG Plus 70 - 2 2 6.5 kW 2 x C 20 A Fronius IG Plus 100 - 1 1 8 kW 1 x C 50 A Fronius IG Plus 100 - 2 2 8 kW 2 x C 25 A Fronius IG Plus 120 - 3 3 10 kW 3 x C 20 A Fronius IG Plus 150 - 3 3 12 kW 3 x C 25 A

Connecting the Fronius IG Plus to the Public Grid (AC)

Only an authorized electrician is permitted to connect this equipment to the public grid.

NOTE Only for Fronius IG Plus 150: When using an FI circuit breaker, the voltage difference between the PE conductor and the N neutral conductor cannot be higher than 8 V.

off

20mm

10mm

OFF

Tightening torque: 2 Nm

Connecting Solar Module Strings to the Fronius IG Plus (DC)

In order to select suitable solar modules and get the most efficient use out of the Fronius IG Plus, please note the following points:

- If insolation 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. Open-circuit voltage over 600 V will damage the Fronius IG Plus voiding the warranty.

- 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 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

General Information About Solar Modules

Safety

WARNING! An electrical shock can be fatal. Danger from

mains voltage and DC voltage from solar modules.

- The connection area should only be opened by a licensed electrician.

- The separate power module area should only be disconnected from the connection area after first being disconnected from the mains power.

- The separate power module area should only be opened by Fronius-trained service personnel.

Before making any connections, make sure that the AC and DC sides are disconnected from the inverter.

The DC main switch is only used to switch off power to the power module. 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.

DC-Terminals

DC+

DC-

DC+ and DC- terminals on the Fronius IG Plus

The DC side terminals are designed for connecting single-wire, round and sector-pattern 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 in the following

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

Connection requirements:

1. Carefully clean off the oxide layer of the stripped cable end, e.g. using a knife

Important Do not use brushes, files or sandpaper. Aluminum particles may get stuck and can transfer to other cables.

2. After removing the oxide layer of the cable end, rub in a neutral fat, e.g. acid and alkali-free Vaseline

3. Then immediately connect to the terminal

Repeat the steps above whenever the cable is disconnected and then reconnected.

Connecting Aluminum Cables

Overview ‘Connecting Solar Module Strings to the Fronius IG Plus (DC)’ includes

the following sections:

- Ungrounded System: Connecting Solar Module Strings

- Criteria for the Proper Selection of String Fuses

- Ungrounded System: Connecting Solar Module Strings with a Cable

Cross Section > 16 mm²

- Solar Module Ground at Negative Pole: Connecting Solar Module

Strings

- Criteria for the Proper Selection of String Fuses

- 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

- Solar Module Ground at Positive Pole: Connecting Solar Module

Strings

- Criteria for the Proper Selection of String Fuses

- Solar Module Ground at Positive Pole: Connecting Solar Module

Strings with a Cable Cross Section > 16 mm²

- Solar Module Ground at Positive Pole for Fronius IG Plus

Ungrounded System: Connecting Solar Module Strings

Cable Cross Section of Solar Module Strings

The cable cross section for solar module strings should be a maximum of 16 mm² per cable.

Ungrounded System: Connecting Solar Module Strings

10mm

Important !

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for

correct measurement results

- Check the polarity and voltage of the solar module strings: the voltage

should be a max. of 600 V, the difference between the individual solar module strings should be a max. of 10 V.

Ungrounded System: Connecting Solar Module Strings

(continued)

Important

- When connecting solar module strings, you should use metal bolts or

string fuses with fuse covers in the fuse holder depending on the solar module manufacturer instructions. The metal bolts are included in the Fronius IG Plus scope of delivery.

- Place metal bolts with fuse covers in the fuse holders for unoccupied

DC+ terminals.

SMOFF

max. 600 V

SMON

SMOFF

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.

Tightening torque 1.2 - 1.5 Nm

Selecting 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 as per ‘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

- Please follow all solar module manufacturer requirements

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Fuse covers are for installation purposes only. They offer no protection against contact.

Using String Fuses in Fronius IG Plus

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 Fronius IG Plus without fuse covers

For more information about string fuses, please see ‘Criteria for the Proper Selection of String Fuses.’

Ungrounded System: Connecting Solar Module Strings

(continued)

Criteria for the Proper Selection of String Fuses

The following criteria must be fulfilled for each solar module string when using fuse protection:

-IN > 1.5 x I

-IN < 2.00 x I

-UN >/= 600 V DC

- Fuse dimensions: Diameter 10.3 x 35 - 38 mm

INNominal current rating of fuse ISCalso STC, short circuit current for standard test conditions according

to solar module datasheet

UNNominal voltage rating of fuse

Effects of using underrated fuses

In case of underrated fuses, the nominal current value is less than the short circuit current of the solar module. Effect: The fuse may trip in intensive lighting conditions.

Fuse Recommendations Application Example

NOTE Only select fuses suitable for a voltage of 600 V DC.

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

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 or STC) of the respective solar module.

Nominal current value Fuse

1.0 A KLK D 1

1.5 A KLK D 1 1/

2.0 A KLK D 2

2.5 A KLK D 2 1/

3.0 A KLK D 3

3.5 A KLK D 3 1/

4.0 A KLK D 4

5.0 A KLK D 5

Fuses

‘Fuses’ table: Excerpt of suitable fuses, e.g. Littelfuse fuses

Nominal current value Fuse

6.0 A KLK D 6

7.0 A KLK D 7

8.0 A KLK D 8

9.0 A KLK D 9

10.0 A KLK D 10

12.0 A KLK D 12

15.0 A KLK D 15

20.0 A KLK D 20

Additional Required Components

Optional

Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

General

Additional Required Components

- 2 metric screw joints M32 (degree of protection min. IP45)

- 2 connection distributors (copper plate)

metric screw joints and connection distributors are available from Fronius as an option

- 2 cable lugs for the DC cables

select cable lugs that match the available DC cables

- 2 M10 screws

- 2 M10 hexagon nuts

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:

As an option, you can also connect DC cables to the Fronius IG Plus with a cross section > 16 mm², e.g. when the DC cables from the solar modules are combined outside of the inverter leads into a large string.

5mm

DC+

Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

(continued)

CAUTION! Danger of damaging the inverter by overload.

- Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on the inverter.

M10

DC+

5mm

DC-

Tightening torque 1,2 - 1,5 Nm

Important

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for correct measurement results

- Check the polarity and voltage of the DC cable: the voltage should be a max. of 600 V.

Ungrounded System: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

(continued)

Important When using connection distributors (copper plate), insert 6 metal bolts with fuse covers in the fuse holder. The metal bolts are included in the Fronius IG Plus scope of delivery.

DC-

DC+

SMON

SMOFF

SMON

SMOFF

max. 600 V

Solar Module Ground at Negative Pole: Connecting Solar Module Strings

The following working steps are only necessary when the solar module manufacturer requires a solar module ground at the negative pole.

General

Cable Cross Section of Solar Module Strings

The cable cross section for solar module strings should be a maximum of 16 mm² per cable.

Solar Module Ground at Negative Pole: Connecting Solar Module Strings

10mm

Solar Module Ground at Negative Pole: Connecting Solar Module Strings

(continued)

Important

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for correct measurement results

- Check the polarity and voltage of the solar module strings: the voltage should be a max. of 600 V, the difference between the individual solar module strings should be a max. of 10 V.

Important

- When connecting solar module strings, you should use metal bolts or string fuses with fuse covers in the fuse holder depending on the solar module manufacturer instructions. The metal bolts are included in the Fronius IG Plus scope of delivery.

- Place metal bolts with fuse covers in the fuse holders for unoccupied DC+ terminals.

SMOFF

max. 600 V

SMON

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.

SMON

SMOFF

Tightening torque 1,2 - 1,5 Nm

Selecting String Fuses

If the solar module manufacturer requires the use of string fuses for operation:

Important

- Please follow solar module safety instructions

- Please follow all solar module manufacturer requirements

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Fuse covers are for installation purposes only. They offer no protection against contact.

Using String Fuses in Fronius IG Plus

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 Fronius IG Plus without fuse covers

For more information about string fuses, please see ‘Criteria for the Proper Selection of String Fuses.’

Solar Module Ground at Negative Pole: Connecting Solar Module Strings

(continued)

Criteria for the Proper Selection of String Fuses

The following criteria must be fulfilled for each solar module string when using fuse protection:

-IN > 1.5 x I

-IN < 2.00 x I

-UN >/= 600 V DC

- Fuse dimensions: Diameter 10.3 x 35 - 38 mm

INNominal current rating of fuse ISCalso STC, short circuit current for standard test conditions according

to solar module datasheet

UNNominal voltage rating of fuse

Effects of using underrated fuses

In underrated fuses, the nominal current value is less than the short circuit current of the solar module. Effect: The fuse may trip in intensive lighting conditions.

Fuse Recommendations Application Example

NOTE Only select fuses suitable for a voltage of 600 V DC.

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

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 or STC) of the respective solar module.

Nominal current value Fuse

1.0 A KLK D 1

1.5 A KLK D 1 1/

2.0 A KLK D 2

2.5 A KLK D 2 1/

3.0 A KLK D 3

3.5 A KLK D 3 1/

4.0 A KLK D 4

5.0 A KLK D 5

Fuses

‘Fuses’ table: Excerpt of suitable fuses, e.g. Littelfuse fuses

Nominal current value Fuse

6.0 A KLK D 6

7.0 A KLK D 7

8.0 A KLK D 8

9.0 A KLK D 9

10.0 A KLK D 10

12.0 A KLK D 12

15.0 A KLK D 15

20.0 A KLK D 20

Additional Required Components

Optional

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

General

Additional Required Components

- 2 metric screw joints M32 (degree of protection min. IP45)

- 2 connection distributors

metric screw joints and connection distributors are available from Fronius as an option

- 2 cable lugs for the DC cables

select cable lugs that match the available DC cables

- 2 M10 screws

- 2 M10 hexagon nuts

The following additional components are required for connecting DC cables with a cross section > 16 mm²:

The following working steps are only necessary when the solar module manufacturer requires a solar module ground at the negative pole.

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

5mm

DC+

CAUTION! Danger of damaging the inverter by overload.

- Connect the DC+ and DC- cables to the correct DC+ and DC- terminals on the inverter.

M10

DC+

Tightening torque 1,2 - 1,5 Nm

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

Important

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for correct measurement results

- Check the polarity and voltage of the DC cable: the voltage should be a max. of 600 V.

5mm

DC-

DC+

SMON

SMOFF

SMON

SMOFF

M10

Tightening torque 1,2 - 1,5 Nm

max. 600 V

Important When using connection distributors, insert 6 metal bolts with fuse covers in the fuse holder. The metal bolts are included in the Fronius IG Plus scope of delivery.

Solar Module Ground at Negative Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

(continued)

=~=

DC+

DC-

Inverter

Solar module

Example: Solar module ground at negative pole with fuse

Some solar module manufacturers require that the solar modules be grounded.

Solar Module Ground at Negative Pole for Fronius IG Plus

General

Solar Module Ground at Negative Pole

Fuse holder on the Fronius IG Plus for the solar module ground

You can ground solar modules in the Fronius IG Plus using a fuse.Solar Module

Ground at Negative Pole for Fronius IG Plus

Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar module grounding.

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Inverter insulation monitoring is deactivated for grounded solar modules.

- Make sure that grounded solar modules are insulated according to protection class II

- Attach corresponding safety labels to the photovoltaic system where they can be seen easily

- Set the inverter so that an error message is displayed when the fuse is triggered.

Safety

Important Safety labels and the

fuse for solar module grounding are not included in the inverter scope of delivery, and must be obtained separately.

Safety label for the solar module ground

Warnung!

Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechselrichters ist deaktiviert. Die Solarmodule sind geerdet. Vor Arbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.

Warnung!

Solar Module Ground: Inserting Fuses

NOTE If the solar module manufacturer requires a ground for

solar modules at the negative pole:

- Insert the fuse with a fuse cover in the respective fuse holder

- Do not operate the Fronius IG Plus without fuse covers

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Fuse covers are for installation purposes only. They offer no protection against contact.

The DC main switch is only used to switch off power to the power module. When the DC main switch is turned off, the solar module ground at the negative pole remains unaffected. Never touch the DC+ and DC-

Setting Inverters for Grounded Solar Modules

Inverter insulation monitoring is deactivated if the solar modules are grounded. For this reason, you must make a setting in the 2nd level of the Setup menu so that an error message is displayed when the ground fuse is triggered. A code is required to access the 2nd level of the Setup menu. This code can be requested from Fronius. Additional information regarding accessing the 2nd level of the Setup menu will be provided along with the code.

Opening Fronius IG Plus for Service/ Maintenance

Procedure for opening the Fronius IG Plus for service or maintenance:

1. Disconnect the AC and DC sides from the inverter

2. Open the connection area

3. Turn off DC main switch

4. Remove plate covers

5. Allow the capacitors to discharge (5 minutes)

6. If present, remove the fuse for the solar module ground

7. If present, remove string fuses

8. Disconnect DC cable

9. Disconnect AC cable

Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar module grounding.

*) Plastic bolts are included in the

Fronius IG Plus scope of delivery.

Inserting the fuse will ground the solar module at the negative pole.

Solar Module Ground: Inserting Fuses

(continued)

Solar Module Ground at Positive Pole: Connecting Solar Module Strings

The following work step is only necessary when the solar module manufacturer requires a solar module ground at the positive pole.

General

Cable Cross Section of Solar Module Strings

The cable cross section for solar module strings should be a maximum of 16 mm² per cable.

Solar Module Ground at Positive Pole: Connecting Solar Module Strings

10mm

After disconnecting the DC main switch cable:

- Connect the DC+ cable to the DC- connection as per work step 5

- Connect the DC- cable to the DC+ connection as per work step 5

Solar Module Ground at Positive Pole: Connecting Solar Module Strings

(continued)

NOTE Identify the reversed polarity accordingly with (+) and (-).

Important

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for correct measurement results

- Check the polarity and voltage of the solar module strings: the voltage should be a max. of 600 V, the difference between the individual solar module strings should be a max. of 10 V.

SMON

SMOFF

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 of the inverter’s DC terminal.

- Connect the DC- cable to the left connection of the inverter’s DC terminal.

Tightening torque 1,2 - 1,5 Nm

Important

- Place metal bolts with fuse covers in the fuse holders for unoccupied DC+ terminals.

Solar Module Ground at Positive Pole: Connecting Solar Module Strings

(continued)

Selecting String Fuses

If the solar module manufacturer requires the use of string fuses for operation:

Important

- Please follow solar module safety instructions

- Please follow all solar module manufacturer requirements

max. 600 V

SMON

SMOFF

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Fuse covers are for installation purposes only. They offer no protection against contact.

Using String Fuses in Fronius IG Plus

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 Fronius IG Plus without fuse covers

Criteria for the Proper Selection of String Fuses

The following criteria must be fulfilled for each solar module string when using fuse protection:

-IN > 1.5 x I

-IN < 2.00 x I

-UN >/= 600 V DC

- Fuse dimensions: Diameter 10.3 x 35 - 38 mm

INNominal current rating of fuse ISCalso STC, short circuit current for standard test conditions according

to solar module datasheet

UNNominal voltage rating of fuse

Effects of using underrated fuses

In underrated fuses, the nominal current value is less than the short circuit current of the solar module. Effect: The fuse may trip in intensive lighting conditions.

Fuse Recommendations Application Example

NOTE Only select fuses suitable for a voltage of 600 V DC.

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

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 or STC) of the respective solar module.

Nominal current value Fuse

1.0 A KLK D 1

1.5 A KLK D 1 1/

2.0 A KLK D 2

2.5 A KLK D 2 1/

3.0 A KLK D 3

3.5 A KLK D 3 1/

4.0 A KLK D 4

5.0 A KLK D 5

Fuses

‘Fuses’ table: Excerpt of suitable fuses, e.g. Littelfuse fuses

Nominal current value Fuse

6.0 A KLK D 6

7.0 A KLK D 7

8.0 A KLK D 8

9.0 A KLK D 9

10.0 A KLK D 10

12.0 A KLK D 12

15.0 A KLK D 15

20.0 A KLK D 20

Additional Required Components

Optional

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

General

Additional Required Components

- 2 metric screw joints M32 (degree of protection min. IP45)

- 2 connection distributors

metric screw joints and connection distributors are available from Fronius as an option

- 2 cable lugs for the DC cables

select cable lugs that match the available DC cables

- 2 M10 screws

- 2 M10 hexagon nuts

The following additional components are required for connecting DC cables with a cross section > 16 mm²:

The following work step is only necessary when the solar module manufacturer requires a solar module ground at the positive pole.

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

5mm

DC-

After disconnecting the DC main switch cable:

- Connect the DC+ cable to the DC- connection as per work step 5

- Connect the DC- cable to the DC+ connection as per work step 5

NOTE Identify the reversed polarity accordingly with (+) and (-).

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

(continued)

CAUTION! Danger of damaging the inverter by overload.

- Connect the DC+ cable to the right connection of the inverter’s DC terminal.

- Connect the DC- cable to the left connection of the inverter’s DC terminal.

M10

DC-

5mm

DC+

M10

DC+

DC-

DC+

SMON

SMOFF

Tightening torque 1,2 - 1,5 Nm

Solar Module Ground at Positive Pole: Connecting Solar Module Strings with a Cable Cross Section > 16 mm²

(continued)

Important! When using connection distributors (copper plate), insert 6 metal bolts with fuse covers in the fuse holder. The metal bolts are included in the Fronius IG Plus scope of delivery.

Important

- Set the jumper from the ‘SMON’ position to the ‘SMOFF’ position for correct measurement results

- Check the polarity and voltage of the DC cable: the voltage should be a max. of 600 V.

max. 600 V

=~=

DC+

DC-

Inverter

Solar module

Example: Solar module ground at positive pole with fuse

Some solar module manufacturers require that the solar modules be grounded.

Solar Module Ground at Positive Pole for Fronius IG Plus

General

Solar Module Ground at Positive Pole

Fuse holder on the Fronius IG Plus for the solar module ground

You can ground solar modules in the Fronius IG Plus using a fuse.Solar Module

Ground at Positive Pole for Fronius IG Plus

Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar module grounding.

WARNING! An electrical shock can be fatal. Danger from DC voltage from solar modules. Inverter insulation monitoring is deactivated for grounded solar modules.

- Make sure that grounded solar modules are insulated according to protection class II

- Attach corresponding safety labels to the photovoltaic system where they can be seen easily

- Set the inverter so that an error message is displayed when the fuse is triggered.

Safety

Important Safety labels and the

fuse for solar module grounding are not included in the inverter scope of delivery, and must be obtained separately.

Safety label for the solar module ground

Warnung!

Ein elektrischer Schlag kann tödlich sein. Gefahr durch DC-Spannung von den Solarmodulen. Die Isolationsüberwachung des Wechsel- richters ist deaktiviert. Die Solarmodule sind geerdet. Vor Arbeiten an der Photovoltaik-Anlage AC- und DC-Seite spannungsfrei schalten.

Warnung!

Solar Module NOTE If the solar module manufacturer requires a ground for

solar modules at the positive pole:

- Insert the fuse with a fuse cover in the respective fuse holder

- Do not operate the Fronius IG Plus without fuse covers

Ground: Inserting Fuses

WARNING! An electrical shock can be fatal. Danger from DC

voltage from solar modules. Fuse covers are for installation purposes only. They offer no protection against contact.

Setting Inverters for Grounded Solar Modules

Inverter insulation monitoring is deactivated for grounded solar modules. For this reason, you must make a setting in the 2nd level of the Setup menu so that an error message is displayed when the ground fuse is triggered. A code is required to access the 2nd level of the Setup menu. This code can be requested from Fronius. Additional information regarding accessing the 2nd level of the Setup menu will be provided along with the code.

Opening Fronius IG Plus for Service/ Maintenance

Procedure for opening the Fronius IG Plus for service or maintenance:

1. Disconnect the AC and DC sides from the inverter

2. Open the connection area

3. Turn off DC main switch

4. Remove plate covers

5. Allow the capacitors to discharge (5 minutes)

6. If present, remove the fuse for the solar module ground

7. If present, remove string fuses

8. Disconnect DC cable

9. Disconnect AC cable

Fronius recommends a fuse with 1 A and a dimension of 10 x 38 mm for solar module grounding.

*) Plastic bolts are included in the

Fronius IG Plus scope of delivery.

Inserting the fuse will ground the solar module at the positive pole.

Solar Module Ground: Inserting Fuses

(continued)

Closing Fronius IG Plus

Inserting Option Cards

Suitable Option Cards

There are several options and system upgrades available for the Fronius IG Plus, e.g.:

- Datalogger and modem interface (for using a PC to record and manage data from your photovoltaic system)

- Various large displays (public display)

- Actuators / relays / alarms (signal card)

- Sensors (temperature / insolation / energy meter)

NOTE Follow general ESD precautions when handling option cards.

WARNING! An electrical shock can be fatal. Danger from mains voltage and DC voltage from solar modules.

- The connection area should only be opened by a licensed electrician.

- Before making any connections, make sure that the AC and DC sides are disconnected from the inverter.

Safety

WARNING! An electrical shock can be fatal. Danger from

residual voltage from capacitors. You must wait until the capacitors have discharged. Discharge takes 5 minutes.

System upgrades come in the form of plug-in cards. The Fronius IG Plus can be equipped with three option cards.

Opening Fronius IG Plus

When adding option cards to the Fronius IG Plus, please follow all inverter safety instructions and information.

Important Depending on the number of option card cables, please use corresponding square sealing inserts.

Inserting Option Cards

Square sealing inserts are part of the option card scope of delivery.

The round sealing insert is included in the ‘COM card’ option scope of delivery.

Closing Fronius IG Plus

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 Fronius IG Plus units 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 Fronius IG Plus units to communicate with all system upgrade components.

The heart of Solar Net is the Datalogger. It coordinates data traffic and makes sure that even large amounts of data are distributed quickly and securely.

The ‘COM Card’ option is required to integrate Fronius IG Plus into Solar Net.

Important Every Fronius IG Plus that is to be monitored using a Datalogger requires a ‘COM Card.’ In this case, the ‘COM Card’ serves as a link between the internal network of the Fronius IG Plus and the Solar Net interface of the Datalogger.

Important Each inverter can only have one ‘COM card.’ A network may only contain one Datalogger.

The first Fronius IG Plus with a ‘COM card’ can be up to 1000 m (3280 ft) away from the last Fronius IG Plus with a ‘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 define each Fronius IG Plus in Solar Net,

each Fronius IG Plus 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 www.fronius.com.

Solar Net and Data Interface

Example

12 3

Fronius IG Plus

COM Card

Datalogger C.

IN OUT

COM Card

IN OUT

RS 232

OUT

Sensor Box

IN OUT

°C

W/m²

m/s

Logging and archiving data from the inverter and sensor using a Datalogger and sensor box.

Data network with 3 Fronius IG Plus units and one sensor box:

- all Fronius IG Plus units have one ‘COM Card’

- one Fronius IG Plus has a ‘Datalogger card’ (no. 2)

- Datalogger has two RS-232 interfaces for connecting to a PC and a modem

Termination plug

Option cards communicate within the Fronius IG Plus via its internal network. External communication (Solar Net) takes place via the ‘COM cards.’ Each ‘COM card’ is equipped with two RS485 interfaces - an input and an output. RJ45 plug connectors are used to connect to these cards.

Commissioning

The Fronius IG Plus has been pre-configured at the factory and is ready to use.

You can assign individual numbers as per ‘The Setup Menu’ section in this manual.

Factory Configuration

Once the Fronius IG Plus 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 Fronius IG Plus without fuse covers.

Commissioning

- If the solar modules are supplying enough power, the Operating Status LED will light up orange. The startup phase will be shown on the display. When the LED lights up orange, this indicates that the Fronius IG Plus is about to start up automatically.

- Once the Fronius IG Plus has completed its automatic startup, the LED will be green.

- Provided that power continues to feed into the grid, the LED will remain green to confirm that the Fronius IG Plus is functioning correctly.

off

Operation

Fronius IG Plus Device Description

Controls and Indicators

(1)

(2)

(3)(4)(5)(6)

Controls and Displays on the Fronius IG Plus

Item Function

(1) Display

for displaying values, settings and menus

(2) LED operating status

for displaying the operating status

(3) ‘Enter’ key

for confirming a selection

(4) ‘Menu / Esc’ key

for scrolling through menu options for exiting the Setup menu

(5) ‘Down/Right’ key

depending on the selection: for navigating down for navigating right

(6) ‘Left/Up’ key

depending on the selection: for navigating left for navigating up

Display Power for the display comes from the solar modules via safety-low volta-

ge. The display is therefore available during daylight hours.

Important The Fronius IG Plus display is not an aligned measuring instrument. A slight deviation of a few percent points is intrinsic to the system. An aligned meter will be required to make calculations for the utility company.

Display

(continued)

(12)

(1) (2) (3) (4) (5)

(6)

(7)

(8)(9)(10)(11)

(13)

Display

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 period of time in question (depending on which display mode is selected).

The value shown represents the minimum period of time in question (depending on which display mode is selected).

Important The minimum and maximum values displayed do not represent the absolute extreme values because data is only recorded at 2-second intervals.

... appears when displaying values transmitted by the energy meter (optional)

... appears when displaying values directly associated with the solar module

... appears when displaying values associated with environmental conditions such as solar radiation and temperature (optional)

... appears when displaying values directly associated with the public grid

... appears when displaying values directly associated with the Fronius IG Plus

Display

(continued)

Item Function

(7) Area for display unit

displays the unit assigned to the display value (8) Icon for the ‘Enter’ key (9) Icons for the ‘Menu/Esc’ key (10) Icons for the ‘Down/Right’ key (11) Icons for the ‘Left/Up’ key (12) Area for the display value

shows the display value (13) Segment bar (not active during setup)

displays the current power feeding into the grid independent of the

selected display mode. Displayed as a percentage of the maximum

power that the photovoltaic inverter is capable of.

Startup Phase Once the Fronius IG Plus switches on automatically it runs a self-test.

After this, the public grid is tested. This test can take from several seconds up to several minutes depending on local regulations. The Operating Status LED is yellow during the startup phase.

1. Segment test

All display elements will illuminate for approximately one second

2. Self-test of the Fronius IG Plus’ main components

- The Fronius IG Plus goes through a virtual checklist

- The display will show ‘TEST’ as well as the component currently being tested (e.g. ‘LED’)

Test Procedure

3. Synchronization with the grid

- ‘WAITPS’ is displayed, the inverter icon blinks: Fronius IG Plus is waiting for all the power modules on the grid to be ready. This process is dependent on the DC voltage.

Test Procedure

(continued)

- Next, the display will show „SYNCAC,“ the grid icon will blink

5. Startup test

- Before the Fronius IG Plus begins feeding power into the grid, grid

conditions are tested according to local regulations

- ‘STARTUP’ will appear on the display

6. Grid power feed-in

- Once the tests have been completed the Fronius IG Plus starts

feeding power into the grid

- The display shows the current power feeding into the grid

- The Operating Status LED is illuminated green and the Fronius IG

Plus is in operation

The startup test can take anywhere from just a few seconds up to several minutes depending on local regulations. Progress is indicated by a vertical segment bar which reduces in size from top to bottom.

Two of the previously flashing dividing marks disappear for every 10% of the total duration of the startup test that has been completed.

4. Only for the Italy country setup (ITA setup): Auto test

- The Fronius IG Plus tests the grid monitoring function

- The display alternates between ‘AUTOTEST’ and ‘AUTOOK’

LED Operating Status

LED Operating Status Explanation

lights up green The LED stays lit after the automatic startup

phase of the Fronius IG Plus as long as power is being fed into the grid. The photovoltaic system is working correctly.

flashing green The photovoltaic system is working correctly, a

status message is on the display.

When a status message is displayed, you can find out what it indicates by going to the ‘Maintenance and Service’ chapter, ‘Status Diagnosis and Troubleshooting’ section. The status message can be acknowledged by pressing the ‘Enter’ key.

lights up orange The Fronius IG Plus will enter its automatic

startup phase as soon as the solar panels start providing sufficient power after sunrise

flashing orange A warning appears on the display

or the Fronius IG Plus has been switched to standby mode in the setup menu (= power feed-in is switched off manually)

Power feed-in is resumed automatically after the next sunrise.

When the orange LED is flashing, power feed-in can be started manually at any time (see section entitled “The Setup Menu”)

Position of Operating Status LED on the Fronius IG Plus

The Operating Status LED changes color according to the operating status:

LED Operating Status

(continued)

LED Operating Status Explanation

lights up red General status: Display of corresponding status

message on the Display

remains dark No connection to solar modules

No output from module due to an absence of daylight

A list of corresponding status messages, causes, and troubleshooting measures can be found in ‘Maintenance and Service’ chapter in the ‘Status Diagnosis and Troubleshooting’ section.

1. Press any key.

The display illumination will activate.

If no key is pressed for 30 seconds, the display illumination will go off again. You can set the display to illuminate all the time or turn off the display illumination completely in the Setup menu.

Activating Display Illumination

Navigating Around the Display

Accessing Menus

1. Press the „Menu“ button (1)

(1)

Accessing Menus

‘Menu’ will appear on the display

The Fronius IG Plus is now in the menu level.

From the menu level you can

- set the desired display mode

- access the Setup menu

Menu Levels

Selecting a display mode

1. Accessing Menu Levels

2. Use the ‘left (7) or ‘right’ (6) keys to select your preferred display mode (1) - (4)

3. Press ‘Enter’ (5)

(1) (2) (3) (4)

(5)(6)(7)

Selecting a Display Mode

The selected display mode is shown

Important The ‘Year’ menu option is supported only when the optional Datalogger is connected. This system upgrade includes a realtime clock.

Example: ‘Day’ display mode

Scrolling Between Display Values

(2)(1) (2)(1)

Example: ‘Fed-in Energy’ display value

Example: ‘Earnings’ display value

1. Selecting a desired display mode

2. Scroll through the available display values using the ‘Up’ (1) and ‘Down’ (2) keys

Display Icon Unit Optional Display value

mode ‘Now’ W - Power fed into the grid

V - Mains voltage A - Current fed in

Hz - Mains frequency

V - Solar module voltage

A - Solar module current °C / °F x Solar module temperature MOhm - Insulation resistance

W x Output recorded by energy

meter

°C / °F x Ambient temperature

W/m² x Solar radiation

HH:MM x Time

‘Day’ kWh / MWh - Energy fed into the grid

Currency - Earnings

kg / T - CO2 reduction

W - Max. fed-in power

V - Max. mains voltage

V - Min. mains voltage

V - Max. solar module voltage

kwh / MWh x Energy recorded by energy

meter °C / °F x Max. solar module temperature °C / °F x Min. solar module temperature °C / °F x Max. ambient temperature °C / °F x Min. ambient temperature

W/m² x Max. solar radiation

HH:MM - Fronius IG Plus operating

hours

x Optional

If the required option card is not available, ‘N.A.’ (not applicable) will be displayed.

Overview of Display Values

‘Year’ ‘Total’

Display Modes

Overview

The following display modes are available for the Fronius IG Plus:

„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 power fed into the grid during

the current calendar year (only in conjunction with an optional Datalogger)

‘Total’ display mode ..... Displays values for power fed into the grid since

the Fronius IG Plus was originally commissioned.

Display Modes

The ‘display modes’ are composed of the following sections:

- Display values in ‘Now’ display mode

- Display values in ‘Day / Year / Total’ display mode

Selecting ‘Now’ Display Mode

1. Select ‘Now’ display mode

The first display value appears in the ‘Now’ display mode

2. Use the ‘Down’ (2) key to scroll to the next display value

Scroll back using the ‘Up’ key (1)

(1) (2)

First display values in the ‘Now’ display mode

Display Values in ‘Now’ Display Mode

Power fed into the mains

Power (in watts) currently being fed into the grid

Mains voltage

(in volts)

Display Values in ‘Now’ Display Mode

Mains frequency

(hertz)

Current fed in

Current (in amperes) currently being fed into mains

*) only for a multi-phase Fronius IG Plus

Display Values in ‘Now’ Display Mode

(continued)

Solar module voltage

Voltage (in volts) currently present at the solar modules

Module current

Current (in amperes) that is currently being supplied by the solar modules

Module temperature (optional)

Temperature at the solar modules (°C can be changed to °F in the setup menu, temperature sensor no. 1, sensor card option)

Insulation resistance of the photovoltaic system

(MOhm) For ungrounded solar modules

WARNING! An electrical shock can be fatal. The positive and negative poles of the photovoltaic system should never be touched with an insulation resistance of < 500 kOhm. An insulation resistance of < 500 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.

Example of display for negative potential (polarity sign ‘-’) Short circuit between DC lead and ground

The voltage displayed while power is being fed into the grid corresponds to the so-called MPP voltage (MPP = maximum power point).

The insulation resistance is the resistance between the positive or negative poles of the photovoltaic system and the ground potential. If an insulation resistance > 500 kOhms is shown, this means that the photovoltaic system is adequately insulated. An insulation resistance of less than 500 kOhms indicates a error.

When the insulation resistance is less than 10 MOhms, the display differentiates between:

- negative potential and the ground (polarity sign ‘-’)

- positive potential and the ground (polarity sign ‘+’)

Display Values in ‘Now’ Display Mode

(continued)

Power taken out of the grid (optional)

Current consumption (in watts, optional sensor card)

Ambient temperature (optional)

(°C can be changed to °F in the Setup menu, temperature sensor no. 2, sensor card option)

Example of display for positive potential (polarity sign ‘+’): Short circuit between DC+ lead and ground

Solar radiation (optional)

Insolation power coming down on each square meter (watts/ m²,optional sensor card)

Time (optional Datalogger)

When the time on the Fronius IG Plus or a system upgrade is changed, this changes the time on all connected devices via Solar Net.

Options If the required option card is not available, ‘N.A.’ (not applicable) will be

displayed.

1. Selecting ‘Day / Year / Total’ Display Mode

The first display values in the ‘Day / Year / Total’ display mode

2. Use the ‘Down’ (2) key to scroll to the next display value

Scroll back using the ‘Up’ key (1)

(1) (2)

First display values in the ‘Day’ display mode

(1) (2)

First display values in the ‘Year’ display mode

The time when the Fronius IG Plus is turned on signals the start of the day. If the DC-in lead is disconnected, the following values will be reset for the ‘Day’ display mode after the unit has been restarted:

- Earnings (currency can be selected)

-CO

reduction (kg)

- Max. power fed in (watts)

- Max. mains voltage (volts)

- Min. mains voltage (volts)

- Energy taken out of the grid (kWh)

- Fronius IG Plus operating hours

If the Datalogger option is available, the display values are valid for the entire calendar day.

Display Values in ‘Day / Year / Total’ Display Mode

General

Selecting ‘Day / Year / Total’ Display Mode

(1) (2)

First display values in the ‘Total’ display mode

Display Values in ‘Day / Year / Total’ Display Mode

Energy fed into the grid

Energy fed into the grid over the period of time in question (kWh / MWh)

There may be discrepancies with values displayed on other measuring instruments because of differences in methods of measurement. The only binding display values for the energy fed into the grid are those calculated by the aligned measuring device provided by the utility company.

Earnings

Amount of money earned during the period of time in question (currency can be selected in the Setup menu)

As with energy fed in, here too, there may be discrepancies with other measured values.

The ‘Setup Menu’ chapter describes how to select a currency and charge the rate. The factory setting depends on the respective country settings.

CO2 reduction

Saved CO2 emissions during the respective time period (kg / T; T = tons) The display unit will alternate between ‘kg’ or ‘T’ and ‘CO2.’

The value for the CO2 reduction corresponds to the CO2 emissions that would have been emitted by a caloric power plant generating the same amount of energy. The factory setting is 0.59 kg / kWh (source: DGS - the German Society for Solar Energy).

Max. fed in power

largest amount of power (W) fed into the grid over the period of time in question

Display Values in ‘Day / Year / Total’ Display Mode

(continued)

Max. mains voltage

highest mains voltage (V) measured during the time in question

Min. mains voltage

lowest mains voltage (V) measured during the time in question

Max. solar module voltage

highest solar module voltage (V) measured during the time in question

Energy recorded by energy meter (optional)

energy used during the time in question (kWh / MWh, energy meter option)

Max. solar module temperature (optional)

highest temperature measured at the solar modules during the time in question (°C can be changed to °F in the setup menu, temperature sensor no. 1, sensor card option)

Min. solar module temperature (optional)

lowest temperature measured at the solar modules during the time in question (°C can be changed to °F in the setup menu, temperature sensor no. 1, sensor card option)

Max. ambient temperature (optional)

highest temperature measured during the time in question (°C can be changed to °F in the setup menu, temperature sensor no. 2, sensor card option)

Display Values in ‘Day / Year / Total’ Display Mode

(continued)

Min. ambient temperature (optional)

lowest temperature measured during the time in question (°C can be changed to °F in the setup menu, temperature sensor no. 2, sensor card option)

Max. solar radiation (optional)

highest solar radiation measured during the time in question (W/m², sensor card option)

Operating hours

Number of operating hours completed by the Fronius IG Plus (HH:MM)

The operating hours are shown in hours and minutes up to 999 hours and 59 minutes (‘999:59’). After that, only the hours are shown.

Although the Fronius IG Plus does not operate during the night, the data required by the optional sensor card is logged and stored 24 hours a day.

Options If the required option card is not available, ‘N.A.’ (not applicable) will be

displayed.

The Setup Menu

The Fronius IG Plus is pre-configured and ready to use. There is no need to make any initial settings before using it to feed power into the grid. This is a fully-automated process.

The Setup menu enables you to change the default settings for the Fronius IG Plus to meet user specifications and requirements.

Default Settings

Opening the setup menu

1. Switch to the menu level (press the ‘Menu’ key)

2. Select the ‘Setup’ (1) mode using the ‘Left’ (4) or ‘Right’ (3) keys

3. Press ‘Enter’ (2)

(1)

(2)(3)(4)

The Setup Menu’s first menu option ‘STANDBY’ will be displayed.

‘Setup’ menu level selected

‘STANDBY’ menu option

Scrolling through Menu Options

(1) (2) (1) (2)

Example: ‘STANDBY’ menu option

Example: ‘CONTRAST’ menu option

STANDBY

Manual activation / deactivation of Standby operation using the ‘Enter’ key Unit -

Setting range Enter Factory setting ‘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 LED goes off after dusk.

- After sunrise the following day, power being fed into the grid is resumed automatically (LED will light up green after the startup phase).

- When the LED is flashing orange, the grid feed can be resumed at any time (deactivate ‘StandBY’).

CONTRAST

Adjusts the contrast on the LCD display Unit -

Setting range 0 - 7 Factory setting 7

Because contrast is temperature-dependent, changing environmental conditions can require the setting of the ‘Contrast’ menu option.

Menu Options in the Setup Menu

1. Open the setup menu

2. Scroll through the available menu options using the ‘Up’ (1) and

‘Down’ (2) keys

Menu Options in the Setup Menu

(continued)

LIGHTMODE

Initial setting for display illumination. Unit -

Setting range AUTO / ON / OFF Factory setting AUTO

AUTO: The display illumination is switched off if no key is pressed for

30 seconds.

ON: The display illumination remains on permanently while power is

being fed into the grid.

OFF: The display illumination is permanently switched off.

Important! The ‘LightMode’ setting only relates to the display’s background illumination. There is no need to switch off the display itself as it uses only a small amount of energy (less than one mW (1/1000 W)).

CASH

Currency and charge rate setting for the energy fed into the grid Unit -

Display area Currency / Charge rate/kWh Factory setting (depending on the country setting)

Factor setting for CO2 reduction Unit kg/kWh, T/kWh

Setting range 00.01 - 99.99 Factory setting 0.59 kg/kWh

YIELD

Setting

- an OFFSET value for the total energy display

- a measurement compensation factor for the day, year and total energy

display

Unit Setting range OFFSET / CALI. Factory setting -

OFFSET Value parameter for the output energy that is being added to

the current output energy (e.g. transfer value for replacing the inverter) Range: 5 digits + unit prefix (k..., M...)

CALI. Correction value parameter to allow the display on the inverter

to match the display of the electricity meter Range: -5.0 - +5.0% in 0.1 increments

Menu Options in the Setup Menu

(continued)

IG no.

Sets the number (= address) of the Fronius IG Plus in a system with several solar inverters

Unit Setting range 01 - 99 (100. Fronius IG Plus = 00) Factory setting 01

Important! Each Fronius IG Plus must be assigned its own address when connecting several inverters in a data communications system.

DATCOM

Controls a data connection, activates the signal card, resets the Personal Display Card and Interface Card

Unit Setting range Displays OKCOM; SIGCDTEST / PDCDRST / IFCDRST Factory setting -

TIME

Time and date setting Unit DDMMYYYY, HH:MM

Display area Date / Time Factory setting -

The ‘Time’ menu option is only supported when the optional Datalogger is connected.

STATEPS

Status display for power modules, the last error that occurred can be displayed

Important Due to the low level of insolation early in the morning and in the evening, the status messages 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

Shows the version number and serial number of the IG Brain unit and the power module.

Unit Setting range MAINCTRL / LCD / PS (PS00, PS01, PS02) Factory setting -

1. Select the ‘STANDBY’ menu option

2. Press the ‘Enter’ key

The standby mode will activate (manual deactivation of the grid feed).

The Operating Status LED flashes orange.

The display switches between ...

‘STANDBY’ and

‘ENTER’

3. Press the ‘Esc’ to exit the ‘STANDBY’ menu option

1. Open the setup menu

2. Select the desired menu option

3. Press the ‘Enter’ key

4. Use the ‘Up’ and ‘Down’ keys to change the value of the menu option

5. Press the ‘Enter’ key - the changed values will be saved in the menu option

6. Press the ‘Esc’ key to exit the menu option

Restoring the grid feed:

Activate ‘STANDBY’ - manual deactivation of the grid feed:

1. Select the ‘STANDBY’ menu option

2. Press the ‘Enter’ key

The Fronius IG Plus will switch to the Startup phase.

After a successful startup, the Operating Status LED will be green. The current power feed will be displayed.

Setting and Displaying Menu Options

General Menu Option Settings

Setting the ‘STANDBY’ Menu Option

Fronius IG Plus 35, Fronius IG Plus 50, Fronius IG Plus 70, Fronius IG Plus 100, Fronius IG Plus 120 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual