Fronius Symo Installation Instructions Manual
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Fronius Symo Installation Instructions Manual

Grid-connected inverter
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See also: Service Manual , Installation Manual
/ Perfect Charging / Perfect Welding /
Fronius Symo 3 - 8,2 kW
42,0426,0172,EN 016-05042019
Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
Solar Energy
Installations instructions
Grid-connected inverter

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Summary of Contents for Fronius Symo

  • Page 1 / Perfect Charging / Perfect Welding / Solar Energy Installations instructions Fronius Symo 3 - 8,2 kW Grid-connected inverter 42,0426,0172,EN 016-05042019 Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).

  • Page 3: Table Of Contents

    Contents Installation location and position ........................ Explanation of safety notices ........................ Safety..............................Proper use/intended purpose........................ Inverter installation location ........................Explanation of symbols - installation position ..................General comments regarding inverter installation location ..............Attaching the Mounting Bracket ......................... Safety..............................Selecting wall plugs and screws ......................Recommended screws .........................

  • Page 5: Installation Location And Position

    Installation location and position Explanation of DANGER! safety notices Indicates immediate danger. ► If not avoided, death or serious injury will result. WARNING! Indicates a potentially hazardous situation. ► If not avoided, death or serious injury may result. CAUTION! Indicates a situation where damage or injury could occur. ►...

  • Page 6: Proper Use/Intended Purpose

    Note! Fronius will not accept any costs associated with production downtimes, installer costs, etc., that may arise as the result of a detected arc and its consequences. Fronius accepts no liability for fires that can occur despite the presence of the integrated arc detec- tion/extinguishing system (e.g.

  • Page 7: Inverter Installation Location

    When designing the photovoltaic system, ensure that all components are operated within their permitted operating ranges at all times. Observe all the measures recommended by the solar module manufacturer to ensure that the solar module retains its properties in the long term. Obey the regulations of the power supply company regarding connection methods and en- ergy fed into the grid.

  • Page 8: Explanation Of Symbols - Installation Position

    All inverters are designed to be dust-tight. However, in areas with a heavy build-up of dust, the thermal efficiency may still be impaired by dust forming on the cooling surfaces. Regular cleaning is necessary in such situations. It is therefore not recommended to mount the device in rooms or areas in which a heavy build-up of dust is expected.

  • Page 9: General Comments Regarding Inverter Installation Location

    Do not install the inverter on a vertical wall or pillar with its connection sockets facing upwards. Do not install the inverter such that it overhangs with its connection sock- ets facing upwards. Do not install the inverter such that it overhangs with its connection sock- ets facing downwards.

  • Page 10: Attaching The Mounting Bracket

    Attaching the Mounting Bracket Safety WARNING! Danger due to residual voltage in capacitors. This may result in an electric shock. ► Wait for the capacitors to discharge. The discharge time is five minutes. CAUTION! Danger due to dirt or water on the terminals and contacts of the inverter's connec- tion area.

  • Page 11: Fixing The Mounting Bracket To A Wall

    Fixing the mount- ing bracket to a wall Tip: Install the inverter such that its display is at eye le-...

  • Page 12: Fitting The Mounting Bracket To A Mast Or Support

    Fitting the mount- When installing the inverter on a mast or ing bracket to a support, Fronius recommends the "Pole mast 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: Do Not Warp Or Deform The Mounting Bracket

    Do not warp or Note! When fitting the mounting bracket to the wall, ensure that the mounting bracket does deform the not become warped or deformed. mounting bracket...

  • Page 14: Connecting The Inverter To The Public Grid (Ac Side)

    Connecting the inverter to the public grid (AC side) Safety WARNING! Danger due to incorrect operation and incorrectly performed work. This may result in serious injury and damage to property. ► Only qualified staff are authorised to commission your inverter and only within the scope of the respective technical regulations.

  • Page 15: Ac Terminals

    Carefully clean the oxide layer from the bare end of the cable by scraping it, e.g. with a knife IMPORTANT! Do not use brushes, files or emery paper, as the aluminium particles get trapped and can be transferred to other conductors. Once the oxide layer is removed, rub the end of the cable with a neutral grease, such as non-acidic and non-alkaline Vaseline Immediately connect the cable end to the terminal...
  • Page 16 Note! Ensure that the grid neutral conductor is grounded. This may not be the case for IT grids (insulated grids with no grounding); it will then not be possible to use the inverter. In order to use the inverter, the neutral conductor must be connected. A neutral con- ductor that is too small may adversely affect the inverter feeding energy into the grid.

  • Page 17: Maximum Fuse Rating On Alternating Current Side

    C 25 A Inverter 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 18 In particular cases, and depending on local factors, however, the type A residual-current circuit breaker may trip at the wrong time. For this reason, Fronius recommends that a residual-current circuit breaker that is suitable for frequency converters...

  • Page 19: 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 20 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 21: Connecting Solar Module Strings To The Inverter (Dc Side)

    ► The power stage set, which is enclosed in a separate housing, must only be discon- nected from the connection area when in a de-energized state. ► Maintenance and servicing in the power stage set of the inverter must only be carried out by Fronius-trained service technicians. CAUTION! Danger due to incorrectly tightened terminals.

  • Page 22: General Comments Regarding Solar Modules

    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 http://www.fronius.com). Note! Before connecting up the solar modules, check that the voltage for the solar modules specified by the manufacturer corresponds to the actual measured voltage.

  • Page 23: Connecting Aluminium Cables

    Note! To ensure effective strain relief of the solar module strings, only use cables with identical cross-sections. IMPORTANT! When using ferrules for DC cables with a cross-section of 16 mm², the fer- rules must be crimped with a right-angled cross-section. The use of ferrules with insulating collars is only permitted up to a max.
  • Page 24 Note! Only break out as many break points as there are cables. D > 6 mm 15 mm 70 mm...
  • Page 25 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 Note! Observe the torque values marked on the side underneath the terminals. Torque (Nm / lbf.in.) → see printing near wire terminal...
  • Page 26 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 27: Data Communication

    Data communication Routing data IMPORTANT! Operating the inverter with one option card and two broken-out option card communication slots is not permitted. cables To cater for this eventuality, a suitable blanking cover (42,0405,2020) is available from Fro- nius 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...
  • Page 28 IMPORTANT! Observe the ESD guidelines when handling option cards. IMPORTANT! Only one Fronius Datamanager in master mode is permitted per Fronius Solar Net ring. Switch any other Fronius Datamanagers to slave mode or remove them. Seal off the unoccupied option card slot by replacing the cover (item number 42,0405,2094);...
  • Page 29 TX20 10.6 lbf.in 1.2 Nm 22.1 lbf.in 2.5 Nm...

  • Page 30: Attaching The Inverter To The Mounting Bracket

    Attaching the inverter to the mounting bracket Attaching the in- WARNING! verter to the mounting bracket Danger from inadequate ground conductor connection. This may result in serious injury and damage to property. ► The housing screws provide a suitable ground conductor connection for grounding the housing and must NOT be replaced by any other screws that do not provide a reliable ground conductor connection.

  • Page 32: Starting For The First Time

    Starting for the first time Starting the in- WARNING! verter for the first time Danger due to incorrect operation and incorrectly performed work. This may result in serious injury and damage to property. ► Only qualified staff are authorised to commission your inverter and only within the scope of the respective technical regulations.
  • Page 33 * Country setups 50Hz International 50 Hz DKA1 Danmark Anlægsstørrelse Italia: Dimensioni <11 kVA impianto < 11.08 kVA 60Hz International 60 Hz DKA2 Danmark Anlægsstørrelse Italia: Dimensioni Österreich: Anlagengröße 11 - 50 kVA impianto > 11.08 kVA < 3,68 kVA ‫ي...

  • Page 34: 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 35: 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 36: 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 flash drive with a storage capacity of 1 GB can record logging data for roughly sev-...

  • Page 37: Buffer Memory

    2.0 Operating Instructions, section "Setting and displaying the menu items", "Viewing and adjusting parameters in the DATCOM menu item"). On the Fronius Eco or Fronius Symo 15.0-3 208, the buffer memory also functions with just a DC supply. Suitable USB...

  • Page 38: Usb Stick For Updating The Inverter Software

    Note! Please note for outdoor applications that conventional USB flash drives are often only guaranteed to work within a restricted temperature range. For outdoor applications ensure that the USB flash drive also functions, for example, at low temperatures. USB stick for up- With the help of the USB stick, end customers can also update the inverter software via the dating the invert- USB item on the SETUP menu: the update file is first saved to the USB stick, from where...

  • Page 39: Notes Regarding Maintenance

    Note! When installed outdoors in a horizontal position: once a year, check that all screw joints are tight! Maintenance and servicing may only be carried out by Fronius-trained service technicians. Cleaning Clean the inverter as required with a damp cloth.

  • Page 40: Australian Cable Protection Hoses

    Australian cable protection hoses Ensure that the cable protection hoses are tightly sealed. rigid or flexible...

  • Page 41: 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 44 FRONIUS INTERNATIONAL GMBH Vorchdorfer Straße 40, A-4643 Pettenbach, Austria E-Mail: sales@fronius.com www.fronius.com Under www.fronius.com/contact you will find the addresses of all Fronius Sales & Service Partners and locations...

This manual is also suitable for:

Symo 3.0-3-mSymo 3.0-3-sSymo 3.7-3-mSymo 4.5-3-sSymo 4.5-3-mSymo 5.0-3-m ... Show all

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