4
Connecting AC cables with a cable lug................................................................................................. 39
Maximum fuse rating on alternating current side .................................................................................. 40
Connecting an external AC supply for the inverter ...............................................................................40
Fitting and connecting optional overvoltage protection.............................................................................. 41
General ................................................................................................................................................. 41
Safety.................................................................................................................................................... 41
Fitting and connecting overvoltage protection on the DC side.............................................................. 41
Fitting and connecting overvoltage protection on the AC side.............................................................. 42
Fitting and connecting overvoltage protection for the AC- supply......................................................... 42
Connecting the DC cable to the inverter .................................................................................................... 44
General comments regarding solar modules ........................................................................................44
DC connections..................................................................................................................................... 44
Connecting aluminium cables ............................................................................................................... 44
Max. cross-section of DC cables .......................................................................................................... 44
Safety.................................................................................................................................................... 45
Connecting DC cables .......................................................................................................................... 45
Connecting DC cables with a cable lug ................................................................................................ 46
Fuse protection against polarity reversal of DC cables......................................................................... 46
Grounding the solar modules in the inverter .............................................................................................. 47
General ................................................................................................................................................. 47
Grounding the solar module to the negative pole via a fuse................................................................. 47
Safety.................................................................................................................................................... 48
Configuring the inverter for grounded solar modules............................................................................ 48
Grounding the solar module on the negative pole: inserting a fuse...................................................... 48
Closing the inverter .................................................................................................................................... 50
Closing the inverter ............................................................................................................................... 50
Using for the first time ................................................................................................................................ 52
Factory configuration ............................................................................................................................ 52
Using for the first time ........................................................................................................................... 52
Configuring the inverter for existing solar module grounding................................................................ 53
Operation 55
Controls and indicators .............................................................................................................................. 57
Controls and indicators ......................................................................................................................... 57
Display .................................................................................................................................................. 57
Symbols showing function key allocation.............................................................................................. 58
Monitoring and status LEDs.................................................................................................................. 59
Startup phase and feeding energy into the grid ......................................................................................... 60
Startup phase........................................................................................................................................ 60
Feeding energy into the grid ................................................................................................................. 60
Navigation at the menu level...................................................................................................................... 61
Activate display backlighting ................................................................................................................. 61
Automatic deactivation of display backlighting / change to display mode 'NOW' ................................. 61
Open menu level................................................................................................................................... 61
The display modes..................................................................................................................................... 62
The display modes................................................................................................................................ 62
Choosing a display mode...................................................................................................................... 62
Overview of display values ................................................................................................................... 62
Values in display mode 'NOW'................................................................................................................... 64
Choosing a display mode...................................................................................................................... 64
Values in display mode 'NOW'.............................................................................................................. 64
Values in display modes 'TODAY / YEAR / TOTAL' ..................................................................................66
Choose display mode 'TODAY / YEAR / TOTAL' ................................................................................. 66
Values in display modes 'TODAY / YEAR / TOTAL' ............................................................................. 66
The Setup menu ........................................................................................................................................ 69
Initial setting .......................................................................................................................................... 69
Accessing the setup menu.................................................................................................................... 69
Move up and down the menu items ...................................................................................................... 69
Menu items in the Set-up menu ................................................................................................................. 70
Standby................................................................................................................................................. 70
Contrast ................................................................................................................................................ 70
Backlighting........................................................................................................................................... 70
Language ............................................................................................................................................. 71