Fronius Symo 3.0-3-S Operating Instructions Manual
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Fronius Symo 3.0-3-S Operating Instructions Manual

Fronius Symo 3.0-3-S Operating Instructions Manual

Grid-connected inverter
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Download this manual See also: Instruction and Installation Manual, Operating Instructions Manual
/ Battery Charging Systems / Welding Technology /
Fronius Symo
Explanation of symbols and choice
of location
Notes regarding installation and
connection
42,0426,0172,EN 002-21082013
Solar Electronics
Operating Instructions
Grid-connected inverter

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Summary of Contents for Fronius Symo 3.0-3-S

  • Page 1 / Battery Charging Systems / Welding Technology / Solar Electronics Operating Instructions Fronius Symo Explanation of symbols and choice Grid-connected inverter of location Notes regarding installation and connection 42,0426,0172,EN 002-21082013...

  • Page 3: Table Of Contents

    Contents Explanation of symbols ..........................Explanation of safety symbols ......................Explanation of symbols - choice of location ..................Explanation of symbols - installation position ..................Choice of location ............................Proper use ............................General comments regarding choice of location................... Installation notes ............................Selecting dowels and screws........................

  • Page 5: Explanation Of Symbols

    Explanation of symbols 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: Explanation Of Symbols - Installation Position

    at an altitude of: 2500 m DCmax DCmax 900 V 0 to 2000 m = 1000 V 2000 m 2000 m 2000 to 2500 m = 900 V DCmax 1000 V 2500 to 3000 m = 815 V 3000 to 3400 m = 750 V >...
  • Page 7 The inverter is suitable for horizontal installation. The inverter is suitable for installation on a sloping surface. Do not install the inverter at an angle on a vertical wall or pillar. Do not install the inverter horizontally on a vertical wall or pillar. Do not install the inverter on a vertical wall or pillar with its connection sockets facing upwards.

  • Page 8: Choice Of Location

    Fronius the installation of parts that are not distributed or expressly approved by Fronius. Fronius shall not be liable for any damage resulting from such action. No warranty claims will be entertained.

  • Page 9: Installation Notes

    Installation notes Selecting dowels IMPORTANT! Depending on the surface, different dowels and screws may be required for and screws installing the wall bracket. Therefore, these dowels and screws are not part of the scope of supply for the inverter. The system installer is responsible for selecting the proper dowels and screws.

  • Page 10: Notes Regarding Grid Connection

    Notes regarding grid connection Monitoring the IMPORTANT! The resistance in the leads to the AC-side connection terminals must be as Grid low as possible for optimal functioning of grid monitoring. AC terminals Ground conductor / grounding L1-L3 Phase conductor Neutral conductor Max.

  • Page 11: Cross-Section Of The Ac Cable

    Repeat the steps above whenever the cable is disconnected and then reconnected. Cross-section of When using a standard M32 metric screw joint with reducer: the AC cable cable diameter 7 - 15 mm When using an M32 metric screw joint (reducer removed): cable diameter 11 - 21 mm (with a cable diameter of 11 mm the strain-relief force is reduced from 100 N to a maximum of 80 N)

  • Page 12: Maximum Fuse Rating On Alternating Current Side

    AC ~ ing current side max. C 25 A Inverter Phases AC power Fuse protection Fronius Symo 3.0-3-S 3000 W 1 x C 25 A Fronius Symo 3.7-3-S 3700 W 1 x C 25 A Fronius Symo 4.5-3-S 4500 W 1 x C 25 A Fronius Symo 8.2-3-M...

  • Page 13: Notes Regarding Dc Connection

    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- age specified by the manufacturer corresponds to the actual measured voltage.

  • Page 14: Inverter Dc Connection

    Carefully clean off the oxide layer of the stripped end of the cable, e.g., using a knife. IMPORTANT Do not use brushes, files or sandpaper. Aluminum particles may get stuck and can transfer to other cables. After removing the oxide layer of the cable end, rub in a neutral grease, e.g., acid- and alkali-free Vaseline.

  • Page 15: 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 3 Fronius Symo terminals available for each DC+ and DC-.
  • Page 16 Single MPP tracker mode on an inverter Fronius Symo 8.2-3-M with multiple MPP trackers: PV 1 PV 2 If the strings are connected using a string collection 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 17: Notes Regarding The Laying Of Data Communication Cables

    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 18: Notes Regarding Attaching The Inverter To The Wall Bracket

    Notes regarding attaching the inverter to the wall bracket Attaching the in- The side sections of the housing lid are designed to function as holding and carrying han- verter to the wall dles. bracket NOTE! For safety reasons, the inverter is fitted with a latch that prevents the in- verter from being swung into the wall bracket unless the DC main switch is switched off.

  • Page 19: Notes Regarding Starting Up For The First Time

    Notes regarding starting up for the first time Notes regarding When starting up the inverter for the first time, it is necessary to select various setup set- starting up for the tings. first time If setup is interrupted before it is complete, it can be restarted by means of an AC reset. An AC reset is performed by switching the automatic circuit breaker off and then on again.

  • Page 20: 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 21: Usb Stick As A Data Logger And For Updating Inverter Software

    A USB stick connected to the USB A socket can act as a data logger for an inverter. data logger Logging data saved to the USB stick can at any time be imported into the Fronius Solar.access software via the included FLD file, be viewed directly in third-party applications (e.g., Microsoft® Excel) via the included CSV file.

  • Page 22: Data Amount And Memory Capacity

    Inverter no. Inverter type (DATCOM code) Logging interval in seconds Energy in watt-seconds with reference to the logging interval Averages over the logging interval (AC voltage, DC voltage, DC current) Temperature value 1 Temperature value 2 Additional information Data amount and One USB stick with a memory capacity of 128 MB, for example, can record logging data at memory capacity a logging interval of 5 minutes for approx.

  • Page 23: Suitable Usb Sticks

    FAT12 FAT16 FAT32 Fronius recommends that the USB stick only be used for recording logging data or for up- dating the inverter software. USB sticks should not contain any other data. USB symbol on the inverter display, e.g., in the ‘NOW’ display mode:...

  • Page 24: Usb Stick For Updating The Inverter Software

    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 er software it is then transferred to the inverter.

  • Page 25: 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! 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 26 Fronius International GmbH Fronius USA LLC Solar Electronics Division 4600 Wels, Froniusplatz 1, Austria 6797 Fronius Drive, Portage, IN 46368 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!

This manual is also suitable for:

Symo 3.7-3-sSymo 4.5-3-sSymo 8.2-3-m

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