Contents
Safety rules 9
Explanation of safety notices 9
Safety 9
General 9
Environmental conditions 10
Qualified personnel 10
Noise emission values 10
EMC measures 11
Backup power 11
Data protection 12
Copyright 12
Protective earthing (PE) 12
General information 13
Fronius Primo GEN24 15
Device concept 15
Function overview 15
Fronius UP 16
Scope of supply 16
Intended use 16
Thermal concept 17
Fronius Solar.web 17
Local communication 18
The various operating modes 19
Operating modes – Explanation of symbols 19
Operating mode – Inverter with battery 20
Operating mode – Inverter with battery and several Smart Meters 20
Operating mode - inverter with battery, AC-coupled to another inverter 20
Operating mode – Inverter with battery and backup power function 21
Operating mode – Inverter with battery, Ohmpilot and backup power function 21
Operating mode – Inverter with battery, further inverter and backup power function 21
Energy flow direction of the inverter 22
Operating states (only for systems with a battery) 22
Energy saving mode 24
General 24
Switch-off conditions 24
Switch-on conditions 24
Special case 24
Indication of energy saving mode 25
Suitable batteries 26
General 26
Limitations in operation 26
BYD Battery-Box Premium 26
LG FLEX 27
Manual system start 29
Requirements 29
Notification of system shutdown 29
Manual battery start after system shutdown 29
Starting backup power operation after a system shutdown 29
Protection of people and equipment 30
Central grid and system protection 30
WSD (wired shutdown) 30
RCMU 30
Insulation monitoring 30
AFCI - Arc Fault Circuit Interrupter (Arc Guard) 30
Safe state 31
Surge protective device 31
Control elements and connections 32
3
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