Fronius  Symo 3 Installation Instructions Manual

Fronius Symo 3 Installation Instructions Manual

Grid-connected inverter
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/ Perfect Charging / Perfect Welding /
Fronius Symo 3 - 8,2 kW
Fronius Eco
42,0426,0172,EN 009-21032016
Solar Energy
Installations instructions
Grid-connected inverter

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Summary of Contents for Fronius Fronius Symo 3

  • Page 1 / Perfect Charging / Perfect Welding / Solar Energy Installations instructions Fronius Symo 3 - 8,2 kW Fronius Eco Grid-connected inverter 42,0426,0172,EN 009-21032016...
  • Page 3: Table Of Contents

    Contents Installation location and position ........................ Explanation of safety symbols ......................Reliability............................... Proper use ............................Inverter installation location ........................Explanation of symbols - installation position ..................General comments regarding inverter installation location ..............Attaching the Wall Bracket ......................... Safety..............................Selecting wall plugs and screws ......................Recommended screws .........................
  • Page 5: Installation Location And Position

    Installation location and position Explanation of DANGER! Indicates immediate and real danger. If it is not avoided, death or se- safety symbols rious injury will result. WARNING! Indicates a potentially dangerous situation. Death or serious injury may result if appropriate precautions are not taken. CAUTION! Indicates a situation where damage or injury could occur.
  • Page 6: Proper Use

    Fronius accepts no liability for fires that can occur despite the presence of the in- tegrated arc detection/extinguishing system (e.g. fires caused by a parallel arc).
  • Page 7: Inverter Installation Location

    Inverter installa- tion location The inverter is suitable for installation indoors. The inverter is suitable for installation outdoors. Its IP 65 degree of protection means that the inverter is resistant to water jets from any direction and can also be used in damp environments. IP 65 In order to minimise the heating up of the inverter, do not expose it to di- rect insolation.
  • Page 8: Explanation Of Symbols - Installation Position

    Explanation of symbols - instal- lation position The inverter is designed to be installed vertically on a vertical wall or pil- lar. The inverter is suitable for horizontal installation. The inverter is suitable for installation on a sloping surface. Do not install the inverter on a sloping surface with its connection sockets facing upwards.
  • Page 9: General Comments Regarding Inverter Installation Location

    Do not install the inverter such that it overhangs with its connection sock- ets facing downwards. Do not install the inverter on the ceiling. General com- The following criteria should be taken into account when choosing a location for the invert- ments regarding inverter installa- tion location...
  • Page 10: Attaching The Wall Bracket

    Attaching the Wall Bracket Safety WARNING! An electric shock can be fatal. Danger due to residual voltage in ca- pacitors. Wait for the capacitors to discharge. The discharge time is five minutes. CAUTION! Risk of damage to the inverter from dirt or water on the terminals and contacts of the connection area.
  • Page 11: Fixing The Wall Bracket To A Wall

    Fixing the wall bracket to a wall Tip: Install the inverter such that its display is at eye le- NOTE! When mounting the wall bracket on the wall, ensure that the wall bracket is not warped or deformed.
  • Page 12: Fitting The Wall Bracket To A Mast Or Support

    Fitting the wall When installing the inverter on a mast or bracket to a mast support, Fronius recommends the "Pole or support Clamp" kit from Rittal GmbH (order no. SZ 2584.000). This kit enables the inverter to be installed on round or rectangular masts with the fol- lowing diameters: from 40 to 190 mm...
  • Page 13: Connecting The Inverter To The Public Grid (Ac)

    Connecting the inverter to the public grid (AC) Safety WARNING! Incorrect operation or poorly executed work can cause serious injury or damage. Commissioning of the inverter may only be carried out by trained per- sonnel in accordance with the technical regulations. Read the installation and op- erating instructions before installing and commissioning the equipment.
  • Page 14: Ac Terminals

    AC terminals Ground conductor / grounding L1-L3 Phase conductor Neutral conductor Max. cross-section of each conductor cab- 16 mm² Min. cross-section of each conductor cable: in accordance with the fuse rating on the AC side, but at least 2.5 mm² The AC cables can be connected to the AC terminals without ferrules.
  • Page 15 Cu / Al max. Class 4 > 250 mm 15 mm > 200 mm If AC cables are laid over the shaft of the DC main switch or across the connection block of the DC main switch, they may be damaged when the inverter is swung in, or they may even prevent the inverter from being swung in.
  • Page 16: Maximum Fuse Rating On Alternating Current Side

    C 25 A Inverters Phases AC power Maximum Recommend- fuse rating ed fuse rating Fronius Symo 3.0-3-S / -M 3000 W C 25 A C 10 A Fronius Symo 3.7-3-S / -M 3700 W C 25 A C 13 A Fronius Symo 4.5-3-S / -M...
  • Page 17: Notes Regarding Inverters With Single And Multiple Mpp Trackers

    Notes regarding inverters with single and multiple MPP trackers Inverter with sin- Fronius Symo 3.0-3-S / 3.7-3-S / 4.5-3-S gle MPP tracker In the case of these inverters, there are Fronius Symo three terminals available for each DC+ and 3.0-3-S / 3.7-3-S / 4.5-3-S DC-.
  • Page 18 Single MPP tracker mode on an inverter Fronius Symo 3.0-3-M - 8.2-3-M with multiple MPP trackers: PV 1 PV 2 If the strings are connected using a string combiner box and only one bus is used for connection to the inverter, the connection DC+1 (pin 2) and DC+2 (pin 1) must be jumpered.
  • Page 19: Connecting Solar Module Strings To The Inverter (Dc)

    The temperature coefficients on the solar modules data sheet must be observed More exact values for dimensioning the solar modules can be provided by suitable cal- culation programs, like the Fronius Solar.configurator (which can be downloaded from www.fronius.com). NOTE! Before you connect up the solar modules you should check that the volt-...
  • Page 20: Dc Terminals

    DC terminals Max. cross-section of each DC cable: 16 mm² min. 2,5 mm² - max. 26 mm² min. 1,5 Nm - max. 1,8 Nm Min. cross-section of each DC cable: 2.5 mm² The DC cables can be connected to the DC terminals without ferrules.
  • Page 21: Connecting Solar Module Strings To The Inverter (Dc)

    Connecting solar CAUTION! Risk of possible dam- module strings to 900V age to the inverter! Check the po- the inverter (DC) 815V larity and voltage of the solar 750V module strings before making the connection. The voltage must not exceed the following values: when installed between 0 and 2000 m above sea level: 1000 when installed between 2001...
  • Page 22 3.0-3-S 3.7-3-S PV PV PV 4.5-3-S 3.0-3-M 3.7-3-M 4.5-3-M 5.0-3-M PV1 PV1 PV2 PV2 6.0-3-M 7.0-3-M 8.2-3-M...
  • Page 23 If DC cables are laid over the shaft of the DC main switch or across the connection block of the DC main switch, they may be damaged when the inverter is swung in or they may even prevent the inverter from being swung in.
  • Page 24: Data Communication

    To cater for this eventuality, a relevant blanking cover (42,0405,2020) is available from Fronius as an option. IMPORTANT! Note the following if data communication cables are being introduced into the inverter: depending on the number and cross-section of the data communication cables that are being introduced, take the relevant blanking plugs out of the sealing insert and in- sert the data communication cable.
  • Page 26: Clipping The Inverter Onto The Wall Bracket

    Clipping the Inverter onto the Wall Bracket Attaching the in- WARNING! An inadequate ground conductor connection can cause serious inju- verter to the wall ry or damage. The housing screws provide a suitable ground conductor connec- bracket tion for grounding the housing and must NOT be replaced by any other screws that do not provide a reliable ground conductor connection.
  • Page 28: Starting For The First Time

    Starting for the first time Starting the in- WARNING! Incorrect operation or poorly executed work can cause serious injury verter for the first or damage. Commissioning of the inverter may only be carried out by trained per- time sonnel in accordance with the technical regulations. Read the installation and op- erating instructions before installing and commissioning the equipment.
  • Page 29 Cyprus Polynésie française Česko Portugal Deutschland: Anlagengröße < 3,68 kVA România Deutschland: Anlagengröße < 13,8 kVA Sverige Deutschland: Anlagengröße > 13,8 kVA Slovenija Danmark Slovensko España Türkiye ESOS Territorios españoles en el extranjero South Africa (Spanish Overseas Islands) France FROS Territoire d’Outre-Mer (French Overseas Islands) C O N F I G B A S I C...
  • Page 30: Notes Regarding Software Updates

    Notes regarding software updates Notes regarding If the inverter is supplied with a USB stick, software updates the inverter software must be updated as soon as the inverter has been commissi- oned: Plug the USB stick into the data com- munication area of the inverter Open the Setup menu Select the "USB"...
  • Page 31: Usb Stick As A Data Logger And For Updating Inverter Software

    Only delete all of the files (sys, fld, csv) at one time. DALO.fld log file: A log file for reading the data in the Fronius Solar.access software. Further details on the Fronius Solar.access software can be found in the "DATCOM Details" operating instructions at http://www.fronius.com DATA.csv log file: A log file for reading the data in a spreadsheet program (e.g.: Microsoft®...
  • Page 32: Data Volume And Storage Capacity

    Inverter no. Inverter type (DATCOM code) Logging interval in seconds Energy in watts per second, relative to the logging interval Inductive reactive power Capacitive reactive power Average values during the logging interval (AC voltage, AC current, DC voltage, DC current) Additional information Data volume and A USB stick with a storage capacity of 1 GB can record logging data for roughly seven...
  • Page 33: Suitable Usb Flash Drives

    "Viewing and adjusting parameters in the DATCOM menu item"). On the Fronius Eco, the buffer memory also functions with just a DC supply Suitable USB Due to the variety of USB flash drives available on the market, it cannot be guaranteed that flash drives every USB flash drive will be detected by the inverter.
  • Page 34: Remove Usb Stick

    Remove USB Security note concerning the removal of a USB stick: stick IMPORTANT! To avoid any loss of data, a USB stick may only be removed if the fol- Do not disconnect lowing conditions are met: USB-Stick only remove a USB stick via the 'Safely remove USB / HW' item on the while LED is flashing! SETUP menu...
  • Page 35: Notes Regarding Maintenance

    Notes regarding maintenance Maintenance NOTE! When installed outdoors in a horizontal position: once a year, check that all screw joints are tight! Maintenance and repair work must only be carried out by authorised personnel. Cleaning Clean the inverter and the display as required with a damp cloth. Do not use cleaning agents, abrasives or solvents to clean the inverter.
  • Page 36: Serial Number Sticker For Customer Use

    Two serial number stickers are enclosed with the inverter's installation instructions: 57 x 20 mm 67 x 20 mm Fronius Inverter These can be affixed by the customer in a Installation visible location of his choosing, e.g. on the front of the inverter or on the operating ins- tructions.
  • Page 38 Fronius International GmbH Fronius USA LLC Solar Electronics Division 4600 Wels, Froniusplatz 1, Austria 6797 Fronius Drive, Portage, IN 46368 E-Mail: pv-sales@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!

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