Fronius Primo GEN24 3.0 Plus, Operating Instructions Manual, Page: 4 / 160

Backup power and energy saving mode 37
Cabling variants including backup power circuits with 1-pin separation e.g. Austria or Australia 38
Functions 38
Transitioning from feeding energy into the grid to backup power mode 38
Transitioning from backup power mode to feeding energy into the grid 38
All-pin separation cabling variant, e.g. Germany, France, Spain, UK 39
Functions 39
Transitioning from feeding energy into the grid to backup power mode 39
Transitioning from backup power mode to feeding energy into the grid 40
All-pin split separation cabling variant (Italy) 41
Functions 41
Transitioning from feeding energy into the grid to backup power mode 41
Transitioning from backup power mode to feeding energy into the grid 42
Installation 43
General 45
Quick-lock system 45
Warning notices on the device 45
Installation location and position 47
Choosing the location of the inverter 47
Choosing the location of third-party batteries 48
Explanation of symbols for the installation position 49
Install the mounting bracket and hang up the inverter 51
Selecting the fixing material 51
Properties of the mounting bracket 51
Do not deform the mounting bracket 51
Fitting the mounting bracket to a wall 51
Installing the mounting bracket on a mast or beam 52
Attaching the mounting bracket to mounting rails 52
Attaching the inverter to the mounting bracket 53
Prerequisites for connecting the inverter 54
Permitted cables 54
Permitted cables for the data communication area 55
Cross section of the AC cable 55
Cross section of the DC cable 56
Maximum alternating current fuse protection 56
Connecting the inverter to the public grid (AC side) 58
Safety 58
Connecting the inverter to the public grid (AC side) 58
Connecting solar module strings to the inverter 61
General comments regarding solar modules 61
Safety 61
PV generator - general information 62
Multiple MPP tracker configuration 3-6 kW 62
Connecting the solar module strings to the inverter 63
Connecting the battery to the inverter 66
Safety 66
Connecting the battery on the DC side 66
Connecting backup power - PV Point (OP) 70
Safety 70
Installation 70
Connecting backup power - Full Backup 75
Safety 75
Cabling variants including backup power circuits with 1-pin separation e.g. Austria or Australia 75
All-pin separation cabling variant e.g. Germany, France, Spain 76
All-pin separation cabling variant, e.g. UK 77
All-pin separation cabling variant, e.g. Italy 78
Testing backup power mode 79
Connecting the data communication cable 80
Modbus participants 80
Routing data communication cables 81
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