Fronius Symo 3.7-3-S Operating Instructions Manual Download Page 7

5

EN

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. 

Do not install the inverter such that it overhangs.
Do not install the inverter such that it overhangs with its connection sock-
ets facing upwards.

Do not install the inverter on the ceiling.

Summary of Contents for Symo 3.7-3-S

Page 1: ...ems Welding Technology Solar Electronics 42 0426 0172 EN 002 21082013 Fronius Symo Explanation of symbols and choice of location Notes regarding installation and connection Operating Instructions Grid...

Page 2: ...0...

Page 3: ...ecting aluminum cables 11 Inverter DC connection 12 Notes regarding inverters with single and multiple MPP trackers 13 Inverter with single MPP tracker 13 Inverter with multiple MPP trackers 13 Notes...

Page 4: ...2...

Page 5: ...rty may result NOTE indicates a risk of flawed results and possible damage to the equipment IMPORTANT indicates tips for correct operation and other particularly useful information It does not indicat...

Page 6: ...s an increased risk of damage from farm ani mals horses cattle sheep pigs etc in stables or adjoining areas in storage areas for hay straw chaff animal feed fertilisers etc Do not install the inverter...

Page 7: ...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 Do not install...

Page 8: ...ated within their permitted operating ranges at all times Observe all the measures recommended by the solar module manufacturer to ensure the lasting maintenance of the properties of the solar module...

Page 9: ...e not part of the scope of supply for the inverter The system installer is responsible for selecting the proper dowels and screws Recommended screws To install the inverter the manufacturer recommends...

Page 10: ...g points must be taken into account when connecting aluminum cables due to the non conducting oxide layer of aluminum Reduced rated currents for aluminum cables The connection requirements listed belo...

Page 11: ...ck 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 IMPORTANT Do not lay AC cables over the shaft of the DC main switch...

Page 12: ...A Fronius Symo 8 2 3 M 3 8200 W 1 x C 25 A NOTE Local regulations the energy supply company or other factors may re quire an earth leakage circuit breaker in the grid line For this situation a type A...

Page 13: ...ach DC cable 16 mm Min cross section of each DC cable 2 5 mm The DC cables can be connected to the DC terminals without ferrules In the case of a DC cable with a cross section of 16 mm ferrules can be...

Page 14: ...0 and 2000 m above sea level 1000 V when installed between 2000 and 2500 m above sea level 900 V when installed between 2500 and 3000 m above sea level 815 V when installed between 3000 and 3400 m ab...

Page 15: ...case the strings must con tain the same number of modules in each case Inverter with mul tiple MPP track ers Fronius Symo 8 2 3 M Connecting two solar module fields to an inverter with multiple MPP t...

Page 16: ...must be jumpered The wire diameter of the DC connection lead and the jumpering must be the same Jumpering of the DC terminal is not neces sary as these terminals are jumpered inter nally When starting...

Page 17: ...ing 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...

Page 18: ...cket 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 Never attach the inverter...

Page 19: ...p set tings 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 The coun...

Page 20: ...lied with a USB stick 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 Sele...

Page 21: ...USB stick is used as a data logger three files are automatically created System file sys This file saves information from the inverter that is irrelevant to the customer The file must not be deleted i...

Page 22: ...nths and deleted from the USB stick If the logging interval is set longer this time frame is extended accordingly FLD file The FLD file should not be larger than 16 MB At a logging interval of 5 minut...

Page 23: ...of USB sticks on the market we cannot guarantee that every USB stick will be recognized by the inverter Fronius recommends using only certified industrial USB sticks look for the USB IF logo The inver...

Page 24: ...rom where it is then transferred to the inverter Remove USB stick Security note concerning the removal of a USB stick IMPORTANT To avoid any loss of data a USB stick may only be removed if the fol low...

Page 25: ...leaning Clean the inverter and the display as required with a damp cloth Do not use cleaning agents abrasives or solvents to clean the inverter NOTE When installed outdoors in a horizontal position on...

Page 26: ...find all addresses of our sales branches and partner firms Fronius International GmbH 4600 Wels Froniusplatz 1 Austria E Mail pv fronius com http www fronius com Fronius USA LLC Solar Electronics Divi...

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