Fronius Symo Series Installation Instructions Manual
Inverter for grid-connected photovoltaic systems
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Also See for Symo Series:
- Service manual & spare parts list (128 pages) ,
- Installation instruction (64 pages) ,
- Installation instructions manual (60 pages)
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Fronius Symo - Installation
10.0-3 208-240
12.0-3 208-240
10.0-3 480
12.5-3 480
15.0-3 480
15.0-3 208
17.5-3 480
20.0-3 480
22.7-3 480
24.0-3 480
42,0426,0202,EA 011-29072019
Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
Solar Energy
Installation Instructions
Inverter for grid-connected photo-
voltaic systems
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Table of Contents
Related Manuals for Fronius Symo Series
Summary of Contents for Fronius Symo Series
- Page 1 Inverter for grid-connected photo- voltaic systems 12.0-3 208-240 10.0-3 480 12.5-3 480 15.0-3 480 15.0-3 208 17.5-3 480 20.0-3 480 22.7-3 480 24.0-3 480 42,0426,0202,EA 011-29072019 Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
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Page 3: Table Of Contents
Safety..............................Permitted Cables ..........................Preparing Aluminum Cables for Connection..................Monitoring the grid ..........................Fronius Symo 15.0-3 208 – ferrite ring ....................Connecting the Inverter to the Public Grid (AC)..................Maximum AC fuse protection........................ Additional external AC and/or DC disconnect..................Notes on the Multi-MPP Tracker inverter .................... - Page 4 Seal Conduits............................. Clipping the Inverter onto the Mounting Bracket ..................Clipping the Inverter onto the Mounting Bracket................... Using for the first time ..........................Using the Inverter for the First Time ..................... Options USB Stick as a Data Logger and for Updating Inverter Software .............. USB Flash Drive as a Data Logger.......................
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Page 5: Location Selection And Installation Position
Location selection and installation position Safety Instruc- WARNING! tions Explanation 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. ► Minor injury or damage to property may result if appropriate precautions are not taken. NOTE! Indicates a possibility of flawed working results and possible damage to the equip- ment. -
Page 6: Intended Use
Notice! Fronius will not bear any costs for production downtimes, or for installations, etc., which may arise due to a detected electric arc and its consequences. Fronius accepts no liability for fires which may break out despite integrated arc detection/interruption (e.g., due to a parallel arc). -
Page 7: Location Selection
All measures recommended by the solar module manufacturer for maintaining solar mod- ule properties must be followed. Follow all grid operator regulations regarding grid power feed and connection methods. Location Selec- Please note the following criteria when choosing a location for the inverter: tion The inverter is suitable for indoor installation. -
Page 8: Installation Position Of The Inverter
Do not install the inverter in: areas where there is an increased risk of accidents from farm ani- mals (horses, cattle, sheep, pigs, etc.) Stables or adjoining areas storage areas for hay, straw, chaff, animal feed, fertilizers, etc. The inverter is designed to be dustproof in principle. However, in areas of high dust accumulation, the cooling surfaces can become dusty, which can impair the thermal performance. -
Page 9: General Location Selection
Do not install the inverter with the connections upwards on a vertical wall or column. Do not install the inverter overhanging with the connections upwards. Do not install the inverter overhanging with the connections downwards. Do not install the inverter on the ceiling. General Location Please note the following criteria when choosing a location for the inverter: Selection... -
Page 10: Example: Installation Of Several Inverters
When installing the inverter in a switch cabinet or similar closed environment, it is neces- sary to make sure that the hot air that develops will be dissipated by forced-air ventilation If you wish to install the inverter on the outer walls of cattle stables, it is important to keep a minimum clearance of 2 m between all sides of the inverter and air vents and other openings. -
Page 11: Preparation
Preparation... -
Page 13: Attaching The Mounting Bracket
Attaching the Mounting Bracket Safety WARNING! Danger of residual voltage from capacitors. An electric shock can be fatal. ► Wait until the capacitors have discharged. Discharge takes 5 minutes. CAUTION! Danger due to soiling or water on the terminals and contacts in the connection area. This may result in damage to the inverter. -
Page 14: Installing The Mounting Bracket On A Wall
Lock Installing the The mounting bracket must be secured in at least four places. Mounting Bracket on a Wall NO NEMA ENCLOSURE TYPE... -
Page 15: Installing The Mounting Bracket On A Mast Or Beam
(6 - 8 mm) Installing the For installation of the inverter on a mast or Mounting Bracket beam, Fronius recommends using the "Po- on a Mast or le clamp" (order no. SZ 2584.000) mast Beam mounting kit from Rittal GmbH. -
Page 16: Do Not Warp Or Deform The Mounting Bracket
Do not warp or Notice! When attaching the mounting bracket to the wall or to a column, make sure that deform the the mounting bracket is not warped or deformed. mounting bracket... -
Page 17: Knockouts
Knockouts Safety NOTE! When using the cable inlets at the back, take care to seal them according to protec- tion class NEMA4X before operating outdoors. NOTE! When installing outdoors, only use waterproof conduit fittings and conduits. Conduit fittings and conduits are not part of the scope of supply for the inverter. General 1/2 in. -
Page 18: Knocking Or Drilling Out Knockouts
CAUTION! Danger of short circuit from loose metal parts from knockouts. Loose metal parts in the inverter may cause short circuits when the inverter is powered up. When removing knockouts, make sure that ► no loose metal parts fall into the connection area of the inverter, ►... -
Page 23: Suitable Grids
Suitable Grids Delta No neutral conductor Setup: Nominal voltage: Appropriate inverter: 208 V Symo 10.0-3 208–240 / 240 V 12.0-3 208–240 / 15.0-3 220 V 220 V 50 Hz 50 Hz 208–240 V L2-L3 MG 3P Microgrid 208 V 120° MG 1P Microgrid 240 V Neutral conductor required... -
Page 24: Connecting The Inverter To The Public Grid (Ac Side)
DC main switch is turned off, the connection area is still energized. ► Maintenance and service work on the inverter power stage set should only be carried out by Fronius-trained service technicians. ► All maintenance and service work should only be carried out when the inverter and the mounting bracket have been disconnected from each other. -
Page 25: Permitted Cables
NOTE! When connecting aluminum cables: ► Follow all national and international guidelines regarding the connection of aluminum cables. ► Follow the instructions of the cable manufacturer, especially the note about whether an annual check to ensure that the cables are firmly attached should be performed. NOTE! Form a min. -
Page 26: Preparing Aluminum Cables For Connection
AC & DC = aluminum cables (Al) The following wire combinations can be used for wiring. Select a sufficiently large cable cross-section based on the actual device output! strand round stranded/round round/round stranded/stranded 10/10 10/12 10/14 10/10 10/12 10/14 10/16 12/10 12/12 12/14... -
Page 27: Monitoring The Grid
Fronius Symo 15.0-3 208 – fer- With Fronius Symo 15.0-3 208, the three rite ring phases and neutral conductor must be fed through a ferrite ring. The ferrite ring is in- cluded in the scope of delivery for the inver- ter. - Page 28 Torque (Nm / lbf.in.) → see printing near wire terminal 0.6 in. (15 mm) AC ~ max. 80 A ≥ 100 mA ΔN § National Standards Type A If AC cables are laid over the shaft of the DC main switch or across the DC main switch connection block, the cables may be damaged when the inverter is pivoted or the inverter may not be able to be pivoted.
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Page 29: Maximum Ac Fuse Protection
Power circuit breaker fuse protection AC ~ max. 80 A Inverter Phases AC power Maximum fuse protection Fronius Symo 10.0-3 208-240 10,000 W C 80 A Fronius Symo 12.0-3 208-240 12,000 W C 80 A Fronius Symo 10.0-3 480 10,000 W C 80 A Fronius Symo 12.5-3 480... -
Page 30: Additional External Ac And/Or Dc Disconnect
NOTE! A residual current circuit breaker for the AC connecting cable may be required de- pending on local regulations, the grid operator, and other conditions. A type A residual current circuit breaker with a trip current of at least 100 mA is generally sufficient in this case. -
Page 33: Notes On The Multi-Mpp Tracker Inverter
Notes on the Multi-MPP Tracker inverter Multi MPP Track- Multi MPP Tracker inverters have two inde- er – Inverter pendent DC inputs (MPP Tracker). These PV 1 PV 1 PV 2 inputs can be connected to a number of dif- ferent modules. -
Page 34: Connecting Solar Module Strings To The Inverter
DC main switch is turned off, the connection area is still energized. ► Maintenance and service work on the inverter power stage set should only be carried out by Fronius-trained service technicians. ► All maintenance and service work should only be carried out when the inverter and the mounting bracket have been disconnected from each other. -
Page 35: String Fuses
Only applies to device type Fronius Symo 15.0-3 208 and device types Fronius Symo 15.0-3 480 / 20.0-3 480 / 22.7-3 480 / 24.0-3 480 with the "Ecofuse" option: The use of string fuses in the Fronius Symo provides additional fuse protection for solar modules. -
Page 36: Permitted Cables
solar module are decisive factors in the protection of the solar module. The maximum short circuit current I per terminal is 15 A. The string fuse release current can be set to greater than 15 A if required. However, a re- lease current of 20 A must not be exceeded. - Page 37 AC & DC = copper cables (Cu) The following wire combinations can be used for wiring. Select a sufficiently large cable cross-section based on the actual device output! strand round stranded/round round/round stranded/stranded 10/10 10/12 10/14 10/10 10/12 10/14 10/16 12/10 12/12 12/14...
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Page 38: General Information About Solar Modules
Note the temperature coefficients in the solar module data sheet More exact data for sizing the solar modules for the particular location can be obtained using calculation tools such as the Fronius Solar.configurator (available at https:// www.solarweb.com). See NEC table 690.7 for the appropriate voltage adjustment factor for crystalline sili- con solar modules, or use the manufacturer's specified voltage coefficients. -
Page 39: Connecting Solar Module Strings To The Inverter
Then immediately connect it to the terminal IMPORTANT! Repeat the steps above whenever the cable is disconnected and then re- connected. Connecting Solar CAUTION! Module Strings to the Inverter Danger due to incorrectly connected PV cables and voltage from the solar modules This can result in damage to the inverter. - Page 40 10.0-3 - 24.0-3 480 ft. (m) DC max > 9842 - 11154 ft. 850 V 10.0-3 - 12.0-3 208-240 (> 3000 - 3400 m) > 8202 - 9842 ft. ft. (m) 900 V DC max (> 2500 - 3000 m) >...
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Page 41: Laying Solar.net Cables
Laying Solar.Net Cables... -
Page 43: Data Communication
Data communication Lay data commu- nication cables 22 lbf.in 2.5 Nm... -
Page 44: Installing Datamanager In The Inverter
IMPORTANT! Follow general ESD guidelines when handling option cards. IMPORTANT! Only one Fronius Datamanager in master mode is permitted per Fronius Solar.Net Ring. Switch other Fronius Datamanagers to slave mode or remove them. - Page 45 TX20 10.6 lbf.in 1.2 Nm...
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Page 47: Finally
Finally... -
Page 49: Seal Conduits
Seal Conduits NOTE! Condensation in the conduits can da- Outside Inside mage the inverter or the photovoltaic system components. To avoid undesirable air circulation and condensation in the conduits: ► seal all conduits in use with a perma- Conduit nently elastic sealant ►... -
Page 50: Clipping The Inverter Onto The Mounting Bracket
Clipping the Inverter onto the Mounting Bracket Clipping the In- WARNING! verter onto the Mounting Bracket Danger due to inadequate ground conductor connection. This can result in severe personal injury and damage to property. ► The housing screws provide an adequate ground conductor connection for grounding the housing and should not be replaced under any circumstances by other screws that do not provide a reliable ground conductor connection. - Page 51 Lock 22.1 lbf.in / 2.5 Nm 4.3 in.
- Page 52 22.1 lbf.in 2.5 Nm Lock...
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Page 53: Using For The First Time
HI2 (Hawaii 208 V with NL-Mon) * For more information about "Field Adjustable Trip Points" and "Special Purpose Utility-Interactive" see www.fronius.com/QR-link/42042102339 C O N F I G L o a d i n g C o u n t r y S e t u p... - Page 54 S E T U P B A S I C A u t o D a y l i g h t s a v i n g M P P T R A C K E R 2...
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Page 55: Options
Options... -
Page 57: Usb Stick As A Data Logger And For Updating Inverter Software
Only delete all files together (sys, fld, csv). DALO.fld log file: Log file for reading out data in Fronius Solar.access. You can find additional information on the Fronius Solar.access Software in the "DAT- COM Detail" operating instructions at http://www.fronius.com DATA.csv log file: A log file for reading out data in a spreadsheet program (e.g., Microsoft®... -
Page 58: 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 Inductive reactive power Capacitive reactive power Averages over the logging interval (AC voltage, AC current, DC voltage, DC cur- rent) Additional information Data Amount and One USB thumb drive with a memory capacity of 1 GB, for example, can record logging Memory Capacity... -
Page 59: Buffer Memory
Mode” setup parameter to ON – see the Operating Instructions for Datamanager 2.0 and the sections “Setting and Displaying Menu Items,” “Displaying and Setting Parameters in the ‘DATcom’ Menu Item”). For Fronius Eco or Fronius Symo 15.0-3 208, the buffer memory also works with pure DC voltage. Suitable USB... -
Page 60: Usb Stick For Updating Inverter Software
Notice! Please be aware that in outdoor applications the USB thumb drive may only func- tion in a limited temperature range. Make sure, for example, that the USB thumb drive will also function at low temperatures for outdoor applications. USB Stick for Up- The USB stick can be used to help end customers update inverter software via the USB dating Inverter menu item in the SETUP menu item: the update file is first saved on the USB stick and then... -
Page 61: Options
Options Options NOTE! A DIN rail is provided in order to mount accessory electrical devices including, but not limited to, overcurrent protecti- on, metering, radio or cellular modem. Maximum size for mounting of all devices is 4 w x 4.75 l x 2.75 inches. The installer ta- kes responsibility for any undesired effect on the inverter by installing an electrical de- vice in this area. -
Page 63: Service And Maintenance
Service and Maintenance... -
Page 65: Notes On Maintenance
Maintenance Notice! For a horizontal installation position and installation outside: perform an annual check to ensure that all screw connections are tightly fastened. Maintenance and service work may only be carried out by Fronius-trained service techni- cians. Cleaning Wipe the inverter, if necessary, with a damp cloth. - Page 68 FRONIUS INTERNATIONAL GMBH Froniusstraße 1, 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...
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