Fronius IG Plus 3.0-1 Operating Instructions Manual
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Fronius IG Plus 3.0-1 Operating Instructions Manual

For grid-connected photo-voltaic systems
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Fronius IG Plus
3.0-1 / 3.8-1 / 5.0-1 / 6.0-1 / 7.5-1
10.0-1 / 11.4-1 / 11.4-3 / 12.0-3
42,0426,0071,EA 042008
USA
Operating Instructions
Inverter for grid-connected photo-
voltaic systems

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Summary of Contents for Fronius IG Plus 3.0-1

  • Page 1 Fronius IG Plus Operating Instructions Inverter for grid-connected photo- 3.0-1 / 3.8-1 / 5.0-1 / 6.0-1 / 7.5-1 voltaic systems 10.0-1 / 11.4-1 / 11.4-3 / 12.0-3 42,0426,0071,EA 042008...
  • Page 3 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.
  • Page 4 ud_fr_st_et_01382 012008...

  • Page 5: Save These Instructions

    Warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the Fronius inver- ter and/or other equipment connected to the Fronius inverter or personal injury.

  • Page 7: Safety Instructions

    Safety Instructions DANGER! “DANGER!“ indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING! “WARNING!“ indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury. CAUTION! “CAUTION!“ indicates a potentially harmful situation which, if not avoided, may result in minor and moderate injury or property damage.
  • Page 8 General All safety instructions and warning signs on the equipment itself: (continued) must be maintained in legible condition must not be damaged must not be removed must not be covered or painted over For information about where the safety instructions and warning signs are located on the equipment, please refer to the “General“...
  • Page 9 Qualified Person- Maintenance and repair may only be carried out by an authorized specialist. (continued) 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.
  • Page 10 Safety Markings Equipment with the CE marking fulfils the basic requirements of the Guideli- ne Governing Low-Voltage and Electromagnetic Compatibility. (For more information, please see the attachment and/or the “Technical Data“ section in your documentation). Disposal 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...

  • Page 11: Table Of Contents

    Ground Fault Detector / Interruptor ................10 Standards and Regulations ..................10 Product listings and compliance .................. 10 The Fronius IG Plus Unit in the PV System ..............11 General information ...................... 11 Tasks..........................11 Converting DC into AC current..................11 Fully automatic operation management ................
  • Page 12 Connecting the Fronius IG Plus to the Public Grid (AC) ..........29 Overview of Available Power Grids ................29 Monitoring the Grid ...................... 31 Schemes with more than one inverter ................. 31 AC-side and Grounding Terminals ................32 Cross Section of AC Wires ..................33 Safety...........................
  • Page 13 Solar Module Ground at Positive Pole: Connecting combined Solar Module Strings using a DC String Input Combiner ..............56 Safety........................... 56 Attaching Power Stage Sets and Closing the Fronius IG Plus ......... 59 Preparation ........................59 Opening the Fronius IG Plus for Service/Maintenance ..........59 Attaching Power Stage Sets And Closing the Fronius IG Plus........
  • Page 14 Displaying Status Codes .................... 115 Normal operation status codes ................... 115 Total failure ......................... 115 Status Codes on Fronius IG Plus with several power stage sets ........ 116 Class 1 Status Codes ....................116 Class 2 Status Codes ....................118 Class 3 Status Codes ....................
  • Page 15 Appendix Technical Data ....................... 141 Fronius IG Plus 3.0-1 ....................141 Fronius IG Plus 3.8-1 ....................143 Fronius IG Plus 5.0-1 ....................145 Fronius IG Plus 6.0-1 ....................147 Fronius IG Plus 7.5-1 ....................149 Fronius IG Plus 10.0-1 ....................151 Fronius IG Plus 11.4-1 ....................

  • Page 17: General Information

    General Information...

  • Page 19: Protection Of Persons And Equipment

    ‘Safety Instructions’! Protection of The design and function of the Fronius IG Plus unit offers a maximum persons and level of safety, both during installation as well as in operation.

  • Page 20: Information For Field Adjustable Trip Points

    (continued) monitoring frequency monitoring islanding conditions Information The Fronius IG Plus unit is provided with field adjustable trip points. For for Field adju- further information please contact Fronius technical support E-Mail: pv-us- stable trip support@fronius.com. points FCC Compli- This device complies with Part 15 of the FCC Rules.

  • Page 21: The Fronius Ig Plus Unit In The Pv System

    It cannot generate electric power independent from the grid. Fully automa- The Fronius IG Plus is fully automatic. Starting at sunrise, as soon as the tic operation solar modules generate enough power, the automatic control unit starts management monitoring voltage and frequency.

  • Page 22: Display Function And Data Communication

    As dusk starts and there is no longer sufficient energy available to feed tic operation power into the grid, the Fronius IG Plus unit shuts down the grid connec- management tion completely and stops operating. All settings and data recorded are (continued) saved.

  • Page 23: Power Derating

    (for example inadequate heat transfer away from the heat sinks) the power will be derated for protection of the Fronius IG Plus unit. Derating the power reduces the output of the Fronius IG Plus unit for a short period sufficient to ensure that the temperature will not exceed the admissible limit.

  • Page 25: Installation And Startup

    Installation and Startup...

  • Page 27: Fronius Ig Plus Installation And Connection

    WARNING! Incorrect operation and work performed incorrectly can cause serious injury & damage! Only qualified staff are authorized to install your Fronius IG Plus and only within the scope of the respective technical regulations. Do not start operation or carry out maintenance work before you have read the chapter ‘Safety Instructions’!

  • Page 28: Connection Diagramm

    ** may be required depending on grid configuration *** depending on inverter type Overview ‘Fronius IG Plus Installation and Connection’ contains the following sec- tions: Fronius IG Plus Connection Options Knockouts on the Fronius IG Plus...

  • Page 29: Fronius Ig Plus Connection Options

    Plug-in card IG Brain Open card slot for an option card Open card slot for an option card Plug-in card NL-MON Only at Fronius IG Plus 12.0-3 WYE 277: Open card slot for an option card DC- main switch wire (10)
  • Page 30 Fronius IG Item Description Plus Connec- (12) AC-side terminals tion Options (13) 3 x grounding terminals (continued) (14) Strain relief for solar module strings (15) 6 DC+ terminals (16) DC main switch...

  • Page 31: Knockouts On The Fronius Ig Plus

    Knockouts on the Fronius IG Plus General The Fronius IG Plus contains several knockouts of different sizes. When knocked out, the openings are used for the inputs of various wires. Knockouts for Wire Inputs Knockouts on the righthand side Knockouts on the lefthand side...
  • Page 32 Knockouts for Item Description Wire Inputs Knockout, diameter 1/2 in. / 3/4 in. (continued) e.g. for DC wire, surge arrester FTX 25 fixing screws FTX 25 fixing screw NOTE When using back wire inputs: - seal on enclosure NEMA 3R before outside operation NOTE The larger knockouts should only be removed from the out- side in.

  • Page 33: Choosing The Location

    The air flow direction within the inverter is from right to left (cold air intake on right, hot air exit on left). When installing the Fronius IG Plus unit in a switch panel cabinet (or similar closed environment) it is necessary to make sure that the hot air that develops will be discharged by forced ventilation.

  • Page 34: Choosing A Location For Outside Installation

    In order to protect the display, the Fronius IG Plus 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.

  • Page 35: Fronius Ig Plus Installation

    31 lbs. (Fronius IG Plus 3.0-1 / 3.8-1), for Wall Bra- 57 lbs. (Fronius IG Plus 5.0-1 / 6.0-1 / 7.5-1), or 82 lbs. (Fronius IG Plus cket Assembly 10.0-1 / 11.4-1 / 11.4-3 / 12.0-3) of inverter weight.

  • Page 36: Attaching The Wall Bracket To A Concrete Or Brick Wall

    Attaching the Important The cut out segment marked (*) represents the placement of Wall Bracket the inverter display. Use this to ensure a comfortable display height for to a Concrete easy reading. or Brick Wall Important The cut out segment marked (*) represents the placement of Attaching the the inverter display.

  • Page 37: Attaching The Wall Bracket To A Metal Carrier

    Metal easy reading. Carrier NOTE When installing using a metal carrier, the Fronius IG Plus should not be exposed to rainwater or water spray at the back. Ensure proper rainwater or spray water protection. Fronius IG Plus Installati-...

  • Page 38: Installation Of Several Inverters

    2 screws removed from the wall bracket in step 1. (continued) Installation of Several inverters can be easily installed and connected next to each other Several Inver- using the side knockouts on the Fronius IG Plus, e.g.: ters DATCOM DATCOM DATCOM = data communication...

  • Page 39: Connecting The Fronius Ig Plus To The Public Grid (Ac)

    Connecting the Fronius IG Plus to the Public Grid (AC) Overview of Fronius IG Plus inverters can be connected to the following power grids: Available Power Grids Public Grid Inverter 208 V Delta Fronius IG Plus 3.0-1 Fronius IG Plus 3.8-1 Fronius IG Plus 5.0-1...
  • Page 40 Overview of Public Grid Inverter Available 240 V: 120 V Stinger Fronius IG Plus 3.0-1 Power Grids Fronius IG Plus 3.8-1 (continued) Fronius IG Plus 5.0-1 Fronius IG Plus 6.0-1 Fronius IG Plus 7.5-1 Fronius IG Plus 10.0-1 Fronius IG Plus 11.4-1...

  • Page 41: Monitoring The Grid

    208 V / 240 V: Connect Fronius IG Plus No. 1, No. 4, No. 7, ... to L1 and L2 Connect Fronius IG Plus No. 2, No. 5, No. 8, ... to L2 and L3 Connect Fronius IG Plus No. 3, No. 6, No. 9, ... to L1 and L3 277 V: Connect Fronius IG Plus No.

  • Page 42: Ac-Side And Grounding Terminals

    Terminal. The size for the conductor is usually based on the size of the largest conductor in the DC system. (3) Grid grounding / Grounding conductor The Fronius IG Plus Inverter must be connected to the AC ground from the utility via the Ground Terminal. NOTE Use copper wire for all grounding wires.

  • Page 43: Cross Section Of Ac Wires

    Use minimum AWG 14 to maximum AWG 4, min. 167°F (75°C), copper wire for all AC wiring connections to the Fronius IG Plus. Voltage drop and other considerations may dictate larger size wires be used. Use only solid or stranded wire. Do not use fine stranded wire.

  • Page 44: Connecting The Fronius Ig Plus To The Public Grid (Ac)

    Connecting the Fronius IG Plus to the Public Grid (AC) Conduit NOTE Only use water tight conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of delivery for the inverter 1/2 in. Connect grid grounding / grounding conductor to the right terminal ** Tightening torque: stranded wires ....

  • Page 45: Connecting Grounding Electrode Wire

    AC-side over the National Electrical Code, ANSI / NFPA 70, at a MAXIMUM of: current pro- tection Fronius IG Plus Over Current Protection 208 V 240 V 277 V 3.0-1...

  • Page 46: Connecting Solar Module Strings To The Fronius Ig Plus (Dc)

    600 Volts. Whenever the open-circuit voltage of the solar modules exceeds 600 Volts, the Fronius IG Plus unit may be damaged, and all warranty rights will become null and void. More exact data for sizing the solar array for the particular location can be obtained using calculation tools such as the Fronius Configura- tion Tool (available on http://www.fronius-usa.com).

  • Page 47: Dc-Terminals

    DC-Terminals DC+ and DC- terminals on the Fronius IG Plus Overview ‘Connecting Solar Module Strings to the Fronius IG Plus (DC)’ includes the following sections: Connecting Solar Module Strings Criteria for the Proper Selection of String Fuses Connecting combined Solar Module Strings using a DC String Input...

  • Page 48: Connecting Solar Module Strings

    Connecting Solar Module Strings Solar Module The Fronius IG Plus is designed for a solar module ground at the negative Ground pole. The solar module ground is carried out via a fuse in the inverter. Solar module Inverter DC main switch...

  • Page 49: Connecting Solar Module Strings

    Use minimum AWG 14 to maximum AWG 6, min. 167°F (continued) (75°C), copper wire for all DC wiring connections to the Fronius IG Plus. Voltage drop and other considerations may dictate larger size wires be used. Use only solid or stranded wire. Do not use fine stranded...
  • Page 50 Connecting NOTE Connecting the Solar Module DC wiring with the wrong Strings polarity may cause dama- (continued) ge to the inverter. Check both the polarity and the open circuit volta- The DC Voltage must not exceed 600 V, regardless of temperature. 1.33 ft.

  • Page 51: Inserting String Fuses Into The Fronius Ig Plus

    Solar Module Strings (continued) Inserting Important The Fronius IG Plus is shipped with conductive slugs in the String fuses fuseholders. Series fusing may be required depending on the type of PV into the Froni- module used in the system. See NEC 690.9.

  • Page 52: Criteria For The Proper Selection Of String Fuses

    Criteria for the Proper Selection of String Fuses DC disconnect NEC 690.15-18 allows the use of fuse holders as a suitable means of requirements disconnecting PV arrays for servicing. Additional DC disconnects external to the inverter may be required by the local authority having jurisdiction. General The use of string fuses in the inverter also adds fuse protection to the solar modules.

  • Page 53: Fuse Recommendations - Application Example

    Fuse Recom- NOTE mendations - Only select fuses suitable for a voltage of 600 V DC. Application Example Example: Maximum short circuit current (I ) 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 1.56 = 8.97 A The fuse that should be selected according to the ‘Fuses’...

  • Page 54: Additional Required Components

    DC input terminal current rating of 20 A. In this case the DC cables can be connected to the Fronius IG Plus using a string input combiner as an option.

  • Page 55: Connecting Combined Solar Module Strings Using A Dc String Input Combiner

    NOTE Do not connect the ground to the DC negative at any point! This is already done within the Fronius IG Plus. If the DC negative is connected to ground at the DC terminal block or prior, this will circumvent the GFDI protection system, preventing your Fronius IG Plus from properly detecting a fault current.
  • Page 56 Connecting combined Solar Module Strings using a DC String Input Combi- (continued) * Wire for solar module grounding Tightening torque: stranded wires ....1.25 ft. lb. solid wires ...... 0.81 ft. lb. NOTE Connecting the DC wiring with the wrong polarity may cause dama- ge to the inverter.
  • Page 57 Bevore starting up the inverter make sure, that a conductive slug is inserted in each fuse holder for string fuses. Insert conductive slugs only with a fuse cover in the respec- tive fuse holder Do not operate the Fronius IG Plus without fuse covers...

  • Page 58: Solar Module Ground At Positive Pole: Connecting Solar Module Strings

    NOTE Do not connect the ground to the DC positive at any point! This is already done within the Fronius IG Plus. If the DC positive is connected to ground at the DC terminal block or prior, this will circumvent the GFDI protection system, preventing your Fronius IG Plus from properly detecting a fault current.

  • Page 59: Solar Module Ground At Positive Pole: Connecting Solar Module Strings

    Use minimum AWG 14 to maximum AWG 6, min. 167°F (continued) (75°C), copper wire for all DC wiring connections to the Fronius IG Plus. Voltage drop and other considerations may dictate larger size wires be used. Use only solid or stranded wire. Do not use fine stranded wire.
  • Page 60 Solar Module CAUTION! Danger of damaging the inverter by overload. Ground at Connect a maximum of 20 A to one single DC input terminal. Positive Pole: Connecting Solar Module Strings 1/2 in. (continued) * Wire for solar module grounding Tightening torque: stranded wires ....

  • Page 61: Solar Module Ground At Positive Pole: Inserting String Fuses Into The Fronius Ig Plus

    600 V, the difference between the individual solar module strings should be less than 10 V. Solar Module Important The Fronius IG Plus is shipped with conductive slugs in the Ground at fuseholders. Series fusing may be required depending on the type of PV Positive Pole: module used in the system.
  • Page 62 Fuse covers are for installation purposes only. They offer no Inserting protection against contact. String fuses into the Froni- NOTE us IG Plus Insert fuses only with a fuse cover in the respective fuse (continued) holder Do not operate the Fronius IG Plus without fuse covers...

  • Page 63: Criteria For The Proper Selection Of String Fuses

    Criteria for the Proper Selection of String Fuses DC disconnect NEC 690.15-18 allows the use of fuse holders as a suitable means of requirements disconnecting PV arrays for servicing. Additional DC disconnects external to the inverter may be required by the local authority having jurisdiction. General The use of string fuses in the inverter also adds fuse protection to the solar modules.

  • Page 64: Fuse Recommendations - Application Example

    Fuse Recom- NOTE mendations - Only select fuses suitable for a voltage of 600 V DC. Application Example Example: Maximum short circuit current (I ) 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 1.56 = 8.97 A The fuse that should be selected according to the ‘Fuses’...

  • Page 65: Solar Module Ground At Positive Pole: Connecting Combined Solar Module Strings Using A Dc String Input Combiner

    DC input terminal current rating of 20 A. In this case the DC cables can be connected to the Fronius IG Plus using a string input combiner as an option.

  • Page 66: Strings Using A Dc String Input Combiner

    NOTE Do not connect the ground to the DC positive at any point! This is already done within the Fronius IG Plus. If the DC positive is connected to ground at the DC terminal block or prior, this will circumvent the GFDI protection system, preventing your Fronius IG Plus from properly detecting a fault current.
  • Page 67 Solar Module 1.33 ft. lb. Ground at Positive Pole: Connecting combined Solar Module Strings using a DC String Input Combi- (continued) black black After disconnecting the DC filter wire: Connect the red DC+ wire to the DC- filter terminal as per step 4 Connect the black DC- wire to the DC+ filter terminal as per step 4 NOTE Identify the reversed polarity accordingly with (+) and (-) at the DC input terminal blocks.
  • Page 68 Bevore starting up the inverter make sure, that a conductive slug is inserted in each fuse holder for string fuses. Insert conductive slugs only with a fuse cover in the respec- tive fuse holder Do not operate the Fronius IG Plus without fuse covers...

  • Page 69: Attaching Power Stage Sets And Closing The Fronius Ig Plus

    Closing the Fronius IG Plus The Fronius IG Plus is now operational. Opening the Procedure for opening the Fronius IG Plus for service or maintenance: Fronius IG Plus for Ser- 1. Disconnect the AC and DC supply from the inverter vice/Mainten- 2.

  • Page 70: Start Up Operation

    Start up Operation Factory pre- Your Fronius IG Plus unit has been pre-configured in the factory and is set configura- ready for operation. You only have to set the available power grid for tion startup. To change your inverter settings, please see section ‘The Setup Menu’ in the chapter ‘Operation’.

  • Page 71: Selecting The Public Grid

    Selecting the Several grid selection options are displayed depending on the product public grid type (see also section 'Connecting the Fronius IG Plus to the Public Grid’). 1. Use the ‘Up’ and ‘Down’ keys to select the desired grid 208 V 120 °...
  • Page 72 Selecting the public grid (continued) 240 V 120 ° Grid voltage 240 V Delta No neutral conductor in the system Neutral conductor monitoring is deactivated 120 V 120 V 120 ° 120 V 120 V 120 ° Grid voltage 240 V: 120 V Stinger Neutral conductor available in the system Neutral conductor monitoring is activated 180 °...

  • Page 73: Startup Phase At Startup Operation

    Segment test at Startup All display elements light up for Operation about one second The Fronius IG Plus unit goes through a master check list for several seconds The display shows ‘TEST’ and indicates the respective compo- nent which is being tested (for example ‘LED’)
  • Page 74 The Operating Status LED lights up green, and the Fronius IG Plus unit starts operating. Important For more information about the startup phase, please see chapter 'Operation', section 'Product Description Fronius IG Plus' (Startup Phase, Test Procedure).

  • Page 75: Inserting Option Cards

    Fronius Personal Display System upgrades are available as plug-in cards and as external boxes. The Fronius IG Plus 12.0-3 WYE 277 is designed for three option cards, all other Fronius IG Plus products are designed for two option cards. Safety WARNING! An electrical shock can be fatal.

  • Page 76: Inserting Option Cards

    Opening Fro- nius IG Plus (continued) Important The plastic dividers are used to separate the data communi- cation wires from the AC and DC wires: Data communication wires must be laid above the plastic dividers AC and DC wires are laid under the plastic dividers Make sure that the plastic dividers are present.
  • Page 77 Connecting NOTE The knockout for the data communication wire must be Option Cards, above the plastic dividers so that the plastic dividers are always Laying Data under the data communication wire. Communicati- on Wires (continued) * Position of Conduit plastic dividers NOTE Only use water tight conduit fittings and conduits.

  • Page 78: Solar Net And Data Interface

    Important Each inverter can only have one ‘Fronius Com Card.’ A net- work may only contain one Datalogger. The first Fronius IG Plus with a ‘Fronius Com Card’ can be up to 3280 ft (1000 m) away from the last Fronius IG Plus with a ‘fronius Com Card’.

  • Page 79: Example

    Solar Net and In order to uniquely define each Fronius IG Plus in Solar Net, Data Interface each Fronius IG Plus must also be assigned an individual number. (continued) You can assign individual numbers as per ‘The Setup Menu’ section in this manual.

  • Page 81: Operation

    Operation...

  • Page 83: Product Description Fronius Ig Plus

    Power for the display comes from the solar modules via safety-low volta- ge. The display is, therefore, available only during daylight hours. Important The Fronius IG Plus display is not a calibrated measuring instrument. A slight deviation of a few percent points is intrinsic to the system.
  • Page 84 ... appears with data readings that are related to environ- mental conditions, like solar irradiance and temperature (optional) ... appears with AC data readings that are directly related to the grid ... appears with data readings that are related directly to the Fronius IG Plus unit...

  • Page 85: Test Procedure

    % of the maximum possible output power of your solar inverter Startup phase After switching on automatically, the Fronius IG Plus unit goes through a self-test, followed by an extensive test of the grid. This test takes five minutes. During the startup sequence the illumination of the Operating Status LED is yellow.
  • Page 86 Next, the display shows ‘SYNC ’, the grid icon blinks (continued) 4. Startup Test Before the Fronius IG Plus unit starts feeding energy into the grid, the conditions of the grid are tested in detail in accordance with regulations. The display shows ‘START ’...

  • Page 87: Operating Status Led

    Fronius IG Plus Operating Status Explanation lights up green A green light starts as soon as the Fronius IG Plus unit has completed the startup phase, and stays green as long as the operation of feeding power into the grid continues.
  • Page 88 Operating Operating Status Explanation Status LED (continued) lights up red General status: the respective status code is shown on the screen remains dark There is no connection to the solar modules; no power output from modules due to darkness A list of most status codes, the corresponding status information, their status causes and repair measures can be found in the chapter ‘Trouble- shooting and Maintenance’, section ‘Status Diagnosis and Troubleshoo- ting’.

  • Page 89: Operating Scheme - The Display

    1. Press the ‘Menu’ button (1) Menus Accessing Menus ‘Menu’ will appear on the dis- play 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...

  • Page 90: Selecting A Display Mode

    Selecting a 1. Accessing Menu Levels display mode 2. Use the ‘left (7) or ‘right’ (6) (1) (2) (3) (4) keys to select your preferred display mode (1) - (4) 3. Press ‘Enter’ (5) Selecting a Display Mode The selected display mode is shown Important The ‘Year’...

  • Page 91: Overview Of Display Values

    ° F / ° C minimum ambient temperature W/m² maximum irradiance HH:MM operating hours of Fronius IG Plus unit optional When the DatCom component for the required option is not available, the message ‘N.A.’ (not available) is shown.

  • Page 92: Display Modes

    Display mode ‘Day’...shows data for the present day Display mode ‘Year’..shows data for present calendar year - only available in combination with optional Datalog- Display mode ‘Total’ ..shows data since your Fronius IG Plus unit first started operating Overview The ‘display modes’ are composed of the following sections: Within display mode ‘Now’...

  • Page 93: Within Display Mode 'Now' Displayed Data

    (Watts) AC grid voltage (Volts) AC current supplied current supplied to the grid at the particular moment (Amperes) Grid frequency (Hertz) *) only for a multi-phase Fronius IG Plus...
  • Page 94 Within display DC array voltage mode ‘Now’ voltage of the solar array at the displayed data moment of data display (Volts) (continued) The voltage shown while AC power is supplied is called MPP voltage (MPP = maximum power point). DC array current current supplied by solar array at the moment of data display (Amperes)

  • Page 95: Options

    Within display Time of the day (optional data- mode ‘Now’ logger) displayed data When the time on the Fronius IG (continued) Plus or a system upgrade is chan- ged, this changes the time on all connected devices via Solar Net.

  • Page 96: Within Display Modes 'Day / Year / Total' Displayed Data

    Within display modes ‘Day / Year / Total’ display- ed data General For the Fronius IG Plus unit, the day begins when it switches on. If the DC supply line is disconnected, the following parameters within the display mode ‘Day’ will be re-set after repeating the start-up: yield (currency can be selected) reduction (lbs.)

  • Page 97: Within Display Modes 'Day / Year / Total' Displayed Data

    Due to the variety of different monitoring systems, there can be deviations between the readings of other metering instruments as compared to the readings from the Fronius IG Plus. For determining the energy supplied to the grid, only the readings of the calibrated meter supplied by the electric utility company are relevant.
  • Page 98 Within display Maximum array voltage modes ‘Day / highest reading of array voltage (V) Year / Total’ during observation period displayed data (continued) Energy consumption meter rea- ding (optional) energy consumed during observati- on period (kWh / MWh; Sensor Box, Datalogger and consumption sensor required) Maximum module temperature (optional)

  • Page 99: Options

    Duration of operation is shown in hours and minutes up to 999 h and 59 min (display: "999:59"). From then on only full hours are displayed. Although the Fronius IG Plus unit does not operate during the night, all sensor data are recorded around the clock.

  • Page 100: The Setup Menu

    The Setup Menu Default Set- The Fronius IG Plus unit is designed for fully automatic operation. No tings manual control is necessary for feeding the power it generates into the grid. The setup menu allows easy readjustment of the Fronius IG Plus’s preset parameters to your needs.

  • Page 101: Scrolling Among Menu Items

    Scrolling among menu items Example: menu item ‘STAND ’ Example: menu item ‘CONTR ’ 1. Open the setup menu 2. Scroll among the available menu items using the ‘Up’ (1) and ‘Down’ (2) keys Menu Items in STAND the Setup Manual activation / deactivation of Standby operation using the ‘Enter’...
  • Page 102 Menu Items in LIGHT MODE the Setup pre-setting of display illumination. Menu Unit (continued) Setting range AUTO / ON / OFF Factory setting AUTO AUTO: The display illumination will stop 30 seconds after the last time a key has been pressed The display will remain illuminated whenever power is supplied to the grid OFF:...
  • Page 103 Menu Items in IG-NR the Setup Setting the number (address) of the Fronius IG Plus unit in a setup com- Menu prising multiple Fronius IG Plus units linked together (continued) Unit Setting range 01 - 99 (100. Fronius IG Plus = 00)

  • Page 104: Setting And Displaying Menu Items

    1. Select the menu item ‘STAND ’ 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 present power feed will be displayed.

  • Page 105: Setting Menu Item 'Contrast

    Setting menu 1. Select menu item ‘CONTR ’ item 2. Press the ‘Enter’ key ‘CONTR ’ Setting ‘7’ for maximum possib- le contrast is shown 3. Use the ‘Up’ and ‘Down’ keys to select the desired level of cont- rast setting ‘0’...

  • Page 106: Setting Menu Item 'Cash

    Setting menu ON ... The display will continue item to remain illuminated whenever ‘LIGHT ’ power is supplied to the grid. MODE (continued) OFF ... The display illumination will be permanently off. 3. Use the ‘Up’ and ‘Down’ keys to select the desired setting for the display illumination 4.
  • Page 107 Setting menu The third character flashes item ‘CASH’ (continued) 7. Use the ‘Up’ and ‘Down’ keys to select a letter for the third cha- racter 8. Press the ‘Enter’ key The set currency flashes 9. Press the ‘Enter’ key The rate for energy supplied is now displayed in kWh/currency, factory setting = 0.14 USD / The first digit flashes...

  • Page 108: Setting Menu Item 'Co2

    Setting menu The second digit after the deci- item ‘CASH’ mal point flashes (continued) 16. Use the ‘Up’ and ‘Down’ keys to select a value for the second digit after the decimal point (e.g. 4) The values that can be set range from 00.01 to 99.99 17.

  • Page 109: Setting Menu Item 'Yield

    Setting menu The second digit flashes item ‘CO ’ (continued) 5. Use the ‘Up’ and ‘Down’ keys to select a value for the first digit 6. Press the ‘Enter’ key The first digit after the decimal point flashes 7. Use the ‘Up’ and ‘Down’ keys to select a value for the first digit after the decimal point 8.
  • Page 110 Setting menu ‘OFFset’ is shown item ‘YIELD’ (continued) 3. Press the ‘Enter’ key The OFF value is shown, the first digit flashs 3. Use the ‘Up’ and ‘Down’ keys to select a value for the first digit 4. Press the ‘Enter’ key The second digit of the OFF value flashes 5.
  • Page 111 Setting menu The digit for the SI prefix flas- item ‘YIELD’ (continued) 13. Use the ‘Up’ and ‘Down’ keys to select the SI prefix: k = 1000 M = 1000000 14. Press the ‘Enter’ key The set OFF value and the SI prefix flash 15.

  • Page 112: Setting Menu Item 'Ig-Nr

    Setting menu The digit after the decimal point item ‘YIELD’ flashes (continued) 22. Use the ‘Up’ and ‘Down’ keys to select a value for the digit after the decimal point 23. Press the ‘Enter’ key The set correction value flashes 24.

  • Page 113: Setting Menu Item 'Datcom

    Setting menu The set inverter number now item ‘IG-NR’ flashes (continued) 7. Press the ‘Enter’ key The number is accepted 8. Press the ‘Esc’ key to exit menu item ‘IG-NR’ or to maintain previous setting Setting menu 1. Select menu item ‘DAT ’...

  • Page 114: Setting Menu Item 'Time

    Setting menu ‘PDCD ’ ... DONE item ‘DAT ’ (continued) ... or ... ‘IFCD ’ is shown DONE 5. Press the ‘Esc’ key 2x to exit menu item ‘DAT ’ Data connection faulty or an option is not installed If there is a faulty data connec- tion or options are not installed ‘ERROR ’...
  • Page 115 Setting menu The first digit for the month item ‘TIME’ flashes (continued) 7. Use the ‘Up’ and ‘Down’ keys to select a value for the first month digit 8. Press the ‘Enter’ key The second digit for the month flashes 9.
  • Page 116 Setting menu The fourth digit for the year item ‘TIME’ flashes (continued) 17. Use the ‘Up’ and ‘Down’ keys to select a value for the fourth year digit 18. Press the ‘Enter’ key The set date then flashes: 19. Press the ‘Enter’ key The time is shown (HH:MM, 0 - 24 h), the first digit for the hour flashes...

  • Page 117: Displaying Menu Item 'Stateps

    Setting menu The second digit for the minu- item ‘TIME’ tes flashes (continued) 26. Use the ‘Up’ and ‘Down’ keys to select a value for the second minutes digit 27. Press the ‘Enter’ key The set time flashes 28. Press the ‘Enter’ key to apply the time 29.

  • Page 118: Displaying Menu Item 'Version

    Displaying the last saved status message. menu item ‘STATE 4. Press the ‘Esc’ key (continued) The status of the first power stage set PS00 is shown again 5. Use the ‘Down’ key to select the second or third power stage set PS01 or PS02, if available.
  • Page 119 Displaying ‘MAIN ’ is shown CTRL menu item ‘VERSI ’ 3. Press ‘Enter’ to display the (continued) version number of the IG Brain unit The version number of the IG Brain unit is shown 4. Press the ‘Down’ key to display the component ID.
  • Page 120 Displaying ‘PS’ is shown menu item ‘VERSI ’ 9. Press the ‘Enter’ key (continued) The first power stage set ‘PS 00’ is shown 10. Select the desired power stage set using the ‘Down’ key 11. Press the ‘Enter’ key The version number of the selected power stage set is shown 12.
  • Page 121 Displaying The selected power stage set is menu item shown ‘VERSI ’ (continued) 16. Press the ‘Esc’ key ‘PS’ is shown 17. Press the ‘Esc’ key to exit menu item ‘VERSI ’...

  • Page 123: Troubleshooting And Maintenance

    Troubleshooting and Maintenance...

  • Page 125: Status Diagnosis And Troubleshooting

    Status Diagnosis and Troubleshooting Displaying Your Fronius IG Plus unit is equipped with a self diagnostic system that Status Codes automatically identifies a large number of possible operation issues by itself and displays them on the screen. This enables you to know immedi- ately if there are any malfunctions in the Fronius IG Plus, the photovoltaic system or any installation or operating errors.

  • Page 126: Status Codes On Fronius Ig Plus With Several Power Stage Sets

    Status Codes A special status diagnostic is run if an error occurs in a Fronius IG Plus on Fronius IG with several power stage sets. Plus with several power It is also possible to call up state messages even if there is no actual error stage sets in existence.
  • Page 127 Class 1 Status Important The 2nd position x defines the exact network point for the Codes following status messages: (continued) = several / all 3 phases = L1 = L2 = L3 AC voltage too high Behavior Grid conditions are thoroughly tested and as soon as they are again within the permissible range, the Froni- us IG Plus will resume feeding power into the grid.

  • Page 128: Class 2 Status Codes

    Their cause lies in the grid. The first reaction of your Fronius IG Plus unit is to disconnect from the grid. Subsequently, the grid will be checked for the duration of the obser- vation period stipulated. If after the end of this period no further defect is identified, your Fronius IG Plus unit resumes operating and feeding power into the grid.

  • Page 129: Class 3 Status Codes

    After automatic disconnection from the grid and waiting for its conditions to return to those stipulated, your Fronius IG Plus unit will try to resume feed-in operation. Over-current (AC) Behavior...
  • Page 130 ’ (306) Intermediate circuit voltage has dropped below permissible threshold value for feed in. this error is shown on the Fronius IG Plus in plain text Behavior Short interruption of power feeding into the grid Fronius IG Plus resumes starting up phase...

  • Page 131: Class 4 Status Codes

    ’ (307) Codes DC-input voltage is too low for feed in (continued) this error is shown on the Fronius IG Plus in plain text Behavior Short interruption of power feeding into the grid Fronius IG Plus resumes starting up phase...
  • Page 132 Class 4 Status Codes EEPROM faulty (continued) Behavior If it is possible, your Fronius IG Plus unit will resume the power feeding operation after successfully com- pleting another attempt to connect Remedy If status code persists, you should contact a Fronius-...
  • Page 133 If status code persists, contact a Fronius-trained service technician Two power stage sets have the same PCB number Behavior The Fronius IG Plus stops feeding power into the grid, the display shows a critical error via a red Ope- rating Status LED Remedy...
  • Page 134 If status code persists, contact a Fronius-trained service technician Internal communication error with NL-MON PC board Behavior If it is possible, your Fronius IG Plus unit will resume the power feeding operation after successfully com- pleting another attempt to connect Remedy...
  • Page 135 Fronius-trained service technician The monitoring of the power stage set main processor ‘Guard’ is active Behavior The Fronius IG Plus stops feeding power into the grid, the display shows a critical error via a red Ope- rating Status LED...
  • Page 136 Reference power source for AC measurement is operating outside of (continued) tolerances Behavior The Fronius IG Plus stops feeding power into the grid, the display shows a critical error via a red Ope- rating Status LED Remedy If status code persists, contact a Fronius-trained...
  • Page 137 The UI command sent from the IG Brain is not recognized by the present display version. Behavior The Fronius IG Plus stops feeding power into the grid, the display shows a critical error via a red Ope- rating Status LED...

  • Page 138: Class 5 Status Codes

    No Solar Net communication possible Description Fronius IG Plus address issued twice Remedy change Fronius IG Plus address (section: ‘The Setup Menu’) Description The LocalNet components required are in the Fronius IG Plus unit: still, communication is not presently...
  • Page 139 Too many power stage sets in the system Description Too many power stage sets have been detected in the system Remedy If Service-Code persists, contact a Fronius-trained service technician Power stage set in boot mode Description One or more power stage sets cannot be activated because they are in boot mode.

  • Page 140: Customer Service

    ‘Advanced’ have to be done again; If Service-Code persists, contact a Fronius-trained service technician Customer Important Please contact your Fronius dealer or a Fronius-trained ser- vice partner if Service an error appears frequently or for a long period of time...

  • Page 141: Maintenance

    You must wait until the capacitors have discharged. Discharge takes 5 minutes. General The Fronius IG Plus is designed so that it does not require additional maintenance. However, there are a few points to keep in mind during operation to ensu-...

  • Page 142: Operation In Dusty Environments

    Remove the fan cover and clean the integrated fly screen as re- quired Opening Fro- Procedure for opening the Fronius IG Plus for service or maintenance: nius IG Plus for Service/ 1. Disconnect the AC and DC supply from the inverter Maintenance 2.

  • Page 143: Replacing String Fuses

    Replacing String Fuses Safety WARNING! An electrical shock can be fatal. Danger from grid voltage and DC voltage from solar modules. The connection area should only be opened by a licensed electrician. Never work with live wires! Prior to all connection work, make sure that the AC and DC wires are not charged.

  • Page 144: Replacing String Fuses

    Preparation Lift up plastic dividers in the area of (continued) the string fuses Replacing WARNING! An electrical shock can be fatal. Danger from DC String Fuses voltage from solar modules. Never remove a fuse, while it is under load. Fuse covers are for installation purposes only. They offer no protection against contact.

  • Page 145: Closing Fronius Ig Plus

    Closing Froni- Return plastic dividers to their us IG Plus proper position Important Make sure that the plastic dividers are underneath any data communication wires that are present.

  • Page 146: Replacing Gfdi Fuse

    Replacing GFDI Fuse Safety WARNING! An electrical shock can be fatal. Danger from grid voltage and DC voltage from solar modules. The connection area should only be opened by a licensed electrician. Never work with live wires! Prior to all connection work, make sure that the AC and DC wires are not charged.

  • Page 147: Replacing Gfdi Fuse

    Preparation If present, disconnect data commu- (continued) nication wire from the option cards. Replacing WARNING! An electrical shock can be fatal. Danger from DC GFDI Fuse voltage from solar modules. Never remove a fuse, while it is under load. Fuse covers are for installation purposes only. They offer no protection against contact.

  • Page 148: Closing Fronius Ig Plus

    Closing Froni- Connect available data communi- us IG Plus cation wire to the option cards. Important Make sure that the plastic dividers are underneath any data communication wires that are present.

  • Page 149: Appendix

    Appendix...

  • Page 151: Technical Data

    Technical Data Fronius IG Input data Plus 3.0-1 Recommended PV power 2500 - 3450 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage...
  • Page 152 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 3.0-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.0 %...

  • Page 153: Fronius Ig Plus 3.8-1

    Fronius IG Input data Plus 3.8-1 Recommended PV power 3200 - 4400 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 10.5 A...
  • Page 154 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 3.8-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.0 %...

  • Page 155: Fronius Ig Plus 5.0-1

    Fronius IG Input data Plus 5.0-1 Recommended PV power 4250 - 5750 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 13.8 A...
  • Page 156 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 5.0-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.5 %...

  • Page 157: Fronius Ig Plus 6.0-1

    Fronius IG Input data Plus 6.0-1 Recommended PV power 5100 - 6900 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 16.6 A...
  • Page 158 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 6.0-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.5 %...

  • Page 159: Fronius Ig Plus 7.5-1

    Fronius IG Input data Plus 7.5-1 Recommended PV power 6350 - 8600 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 20.7 A...
  • Page 160 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 7.5-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.0 %...

  • Page 161: Fronius Ig Plus 10.0-1

    Fronius IG Input data Plus 10.0-1 Recommended PV power 8500 - 11500 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 27.6 A...
  • Page 162 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 10.0-1 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.0 %...

  • Page 163: Fronius Ig Plus 11.4-1

    Fronius IG Input data Plus 11.4-1 Recommended PV power 9700 - 13100 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 31.4 A...
  • Page 164 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 11.4-1 Frequency clearing times 0.016 -300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.5 %...

  • Page 165: Fronius Ig Plus 11.4-3

    Fronius IG Input data Plus 11.4-3 Recommended PV power 9700 - 13100 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 31.4 A...
  • Page 166 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 11.4-3 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 208 V 95.0 %...

  • Page 167: Fronius Ig Plus 12.0-3

    Fronius IG Input data Plus 12.0-3 Recommended PV power 10200 - 13800 Wp MPPT-voltage range 230 - 500 V DC Max. input voltage 600 V DC (at 1000 W/m² / 14 °F in open circuit operation) Nominal input voltage 390 V Nominal input current 33.1 A...
  • Page 168 Fronius IG Frequency trip limit accuracy 0.05 Hz Plus 12.0-3 Frequency clearing times 0.016 - 300 s (continued) Total harmonic distortion < 3 % Power factor assured by electrical design of the inverter. General data Maximum efficiency 96.2 % CEC efficiency at 277 V 96.0 %...

  • Page 169: Field Adjustable Trip Points

    Field adjustab- Field adjustable trip points 208 V 240 V 277 V le trip points Nominal AC output voltage, Line-to-Line, [V] Operating AC voltage range 183-229 211-264 default, Line-to-Line, [V] Adjustment range for 105-248 121-287 voltage, Line-to-Line, [V] Voltage trip limit accuracy, Line-to-Line [% of nominal value] Operating AC voltage range, 106-132...

  • Page 170: Relevant Standards And Directives

    ANSI/IEEE C62.41 (September 2001) Grid Failure The standard measurement and safety procedures integrated into the Fronius IG Plus ensure that the power feed is immediately interrupted in the event of a grid failure (shut-off by the utility or damage to lines).

  • Page 171: Warranty And Disposal

    The warranty is based on the inverter’s serial number, allo- wing the warranty to be transferred to another owner if the Fronius IG Plus Solar Inverter remains installed in the original installation location.

  • Page 172: Disposal Of Obsolete Equipment - Recycling

    FRONIUS USA LLC - Solar Electronics Division 10421 Citation Drive, Suite 1100, Brighton, MI 48116 E-Mail: pv-us@fronius.com http://www.fronius-usa.com Should your inverter be replaced at some future date, Fronius will accept Disposal of the obsolete equipment back and provide for its proper recycling. obsolete...
  • Page 173 203213 Project: 2097497 Date Issued: 2008/11/14 Issued to: Fronius International GmbH Guenter Fronius Strasse 1 Wels-Thalheim, 4600 Austria Attention: Mr. Josef Feichtinger The products listed below are eligible to bear the CSA Mark shown with adjacent indicator 'US' Issued by: Rob Hempstock, AScT.
  • Page 174 Certificate: 2065918 Master Contract: 203213 Project: 2097497 Date Issued: 2008/11/14 APPLICABLE REQUIREMENTS DQD 507 Rev. 2004-06-30...
  • Page 175 Fronius USA LLC Solar Electronics Division 4600 Wels-Thalheim, Günter-Fronius-Straße 1, Austria 10421 Citation Drive, Suite 1100, Brighton, MI 48116 E-Mail: pv@fronius.com E-Mail: pv-us@fronius.com http://www.fronius.com http://www.fronius-usa.com Under http://www.fronius.com/addresses you will find all addresses of our sales branches and partner firms! ud_fr_se_so_00913 012007...

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