Fronius DC Box 60/12 MET, Operating Instructions Manual

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35
EN-US
Contents
Safety rules ................................................................................................................................................ 37
Safety Rules Explanation...................................................................................................................... 37
General ................................................................................................................................................. 37
Utilization in Accordance with "Intended Purpose" ............................................................................... 38
Environmental Conditions ..................................................................................................................... 38
Qualified Service Engineers.................................................................................................................. 38
Electrical Installations ........................................................................................................................... 38
Safety Measures in Normal Operation.................................................................................................. 39
Safety Symbols ..................................................................................................................................... 39
Disposal ................................................................................................................................................ 39
Copyright............................................................................................................................................... 39
Safety Precautions................................................................................................................................ 40
General ...................................................................................................................................................... 41
Device Concept..................................................................................................................................... 41
Inverter.................................................................................................................................................. 41
Scope of supply .................................................................................................................................... 41
Optional................................................................................................................................................. 42
Technical Data ...................................................................................................................................... 42
Abbreviations and Descriptions Used ................................................................................................... 42
Warning notices affixed to the device ................................................................................................... 43
Product description .................................................................................................................................... 44
Safety.................................................................................................................................................... 44
Device description, housing .................................................................................................................. 44
Device description, inside of device...................................................................................................... 45
Installing Metric Screw Joints on the Fronius DC Box 60/12 ..................................................................... 46
General ................................................................................................................................................. 46
Recommended Sequence for Inserting the Metric Screw Joints .......................................................... 46
Installing Metric Screw Joints................................................................................................................ 46
Tightening torques for metric screw joints ............................................................................................ 47
Installing the Fronius DC Box 60/12 .......................................................................................................... 48
Dowels and Screws .............................................................................................................................. 48
Selecting a Location.............................................................................................................................. 48
Installation position ............................................................................................................................... 49
Fronius DC Box 60/12 Installation ........................................................................................................ 49
Criteria for the Proper Selection of String Fuses ....................................................................................... 51
General ................................................................................................................................................. 51
Criteria for the Proper Selection of String Fuses .................................................................................. 51
Effects of Using Underrated Fuses ....................................................................................................... 51
Fuse recommendations ........................................................................................................................ 51
Fuse Recommendations - Application Example ................................................................................... 51
Fuses .................................................................................................................................................... 52
Connecting Solar Module Strings to the Fronius DC Box 60/12 ................................................................ 53
Safety.................................................................................................................................................... 53
Notes for Connecting Solar Module Strings to the Fronius DC Box 60/12 .......................................... 53
Terminal assignment for grounded solar modules................................................................................ 53
Example of pin assignment for grounded solar modules ...................................................................... 54
Connecting Solar Module Strings to the Fronius DC Box 60/12 .......................................................... 54
Final Tasks ........................................................................................................................................... 55
Connecting the Fronius DC Box 60/12 to the Inverter ............................................................................... 56
Safety.................................................................................................................................................... 56
Preparation ........................................................................................................................................... 56
Connecting the Fronius DC Box 60/12 to the Inverter .......................................................................... 57
Inserting String Fuses ................................................................................................................................ 58
Safety.................................................................................................................................................... 58
Selecting string fuses............................................................................................................................ 58
Inserting String Fuses ........................................................................................................................... 58
Closing the Fronius DC Box 60/12............................................................................................................. 59
Safety.................................................................................................................................................... 59
Closing the Fronius DC Box 60/12........................................................................................................ 59
Replacing String Fuses, Maintenance ....................................................................................................... 60