FRO­NIUS Primo GEN24 8.0 Plus User manual

Operating
Instructions
Fronius Primo GEN24
8.0 Plus / 10.0 Plus
42,0426,0419,EN 017-27042023
EN Operating Instructions

Contents
Safety rules 8
Explanation of safety notices 8
Safety 8
General 8
Environmental conditions 9
Qualified personnel 9
Noise emission values 9
EMC measures 10
Backup power 10
Data protection 11
Copyright 11
Protective earthing (PE) 11
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 RESU 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
Safe state 30
Surge protective device 30
Control elements and connections 31
Connection area 31
Connection area divider 32
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Ground electrode terminal 32
DC disconnector 33
Data communication area 33
Button functions and LED status indicator 35
Internal schematic connection diagram of the IOs 36
Backup power variant - PV Point (OP) 39
General 41
PV Point (OP) 41
Explanation - PV Point (OP) 41
Backup power variant - Full Backup 43
General 45
Prerequisites for backup power mode 45
Transitioning from feeding energy into the grid to backup power mode 45
Transitioning from backup power mode to feeding energy into the grid 45
Backup power and energy saving mode 46
Cabling variants including backup power circuits with 1-pin separation e.g. Austria or Aus-
tralia
47
Functions 47
Transitioning from feeding energy into the grid to backup power mode 47
Transitioning from backup power mode to feeding energy into the grid 47
All-pin separation cabling variant e.g. Germany, France, Spain, UK 48
Functions 48
Transitioning from feeding energy into the grid to backup power mode 48
Transitioning from backup power mode to feeding energy into the grid 49
All-pin separation cabling variant, Italy 50
Functions 50
Transitioning from feeding energy into the grid to backup power mode 50
Transitioning from backup power mode to feeding energy into the grid 51
Installation 53
General 55
Quick-lock system 55
Warning notices on the device 55
System component compatibility 57
Installation location and position 58
Choosing the location of the inverter 58
Choosing the location of third-party batteries 59
Installation position of inverter 60
Install the mounting bracket and hang up the inverter 62
Selecting the fixing material 62
Properties of the mounting bracket 62
Do not deform the mounting bracket 62
Fitting the mounting bracket to a wall 62
Installing the mounting bracket on a mast or beam 63
Attaching the mounting bracket to mounting rails 64
Attaching the inverter to the mounting bracket 64
Prerequisites for connecting the inverter 65
Permissible cables for the electrical connection 65
Permitted cables for the data communication connection 66
Cross section of the AC cable 66
Cross section of the DC cable 67
Maximum alternating current fuse protection 67
Connecting the inverter to the public grid (AC side) 69
Safety 69
Connecting the inverter to the public grid (AC side) 69
Connecting solar module strings to the inverter 72
General comments regarding PV modules 72
Safety 72
Module array - general information 73
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Module array configuration 8 ‑10 kW 73
Connecting the solar module strings to the inverter 74
Connecting the battery to the inverter 78
Safety 78
Connecting the battery on the DC side 78
Connecting the LG RESU FLEX ground conductor 82
Connecting backup power - PV Point (OP) 83
Safety 83
Installation 83
Connecting backup power - Full Backup 88
Safety 88
Cabling variants including backup power circuits with 1-pin separation e.g. Austria or Aus-
tralia
88
All-pin separation cabling variant e.g. Germany, France, Spain 89
All-pin separation cabling variant, e.g. UK 90
All-pin separation cabling variant, e.g. Italy 91
Testing backup power mode 92
Connecting the data communication cable 93
Modbus participants 93
Routing data communication cables 94
Connecting the battery communication cable 96
Terminating resistors 96
Installing the WSD (wired shutdown) 98
Closing and commissioning the inverter 99
Closing the inverter's connection area/housing cover, and commissioning 99
Starting the inverter for the first time 99
Installation with the app 100
Installation using the web browser 100
Switching off current supply and restarting the inverter 102
De-energising the inverter and switching it on again 102
Settings - user interface of the inverter 103
User settings 105
User login 105
Selecting the language 105
Device configuration 106
Components 106
Functions andI/Os 107
Demand Response Modes (DRM) 108
Inverter 108
Energy management 111
Energy management 111
Examples - Time-dependent battery control 112
Allowed battery control rules 114
PV power reduction 116
Load management 116
System 118
General 118
Update 118
Setup wizard 118
Restoring the factory settings 118
Event log 118
Information 118
Licence manager 119
Support 120
Communication 121
Network 121
Modbus 122
Remote control 123
Fronius Solar API 123
Safety and grid requirements 125
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Country setup 125
Feed-in limitation 125
Dynamic power regulation with several inverters 127
I/O power management 129
Connection diagram - 4 relay 130
I/O power management settings - 4 relays 131
Connection diagram - 3 relay 132
I/O power management settings - 3 relays 133
Connection diagram - 2 relay 134
I/O power management settings - 2 relays 135
Connection diagram - 1 relay 136
I/O power management settings - 1 relay 137
Autotest(CEI 0-21) 137
Options 139
Surge protective device (SPD) 141
General 141
Safety 141
Scope of supply 141
De-energising the inverter 142
Installation 143
Commissioning the inverter 148
DC Connector Kit GEN24 150
General 150
General comments regarding PV modules 150
Safety 150
Scope of supply 151
De-energising the inverter 151
Installation 152
Commissioning the inverter 156
Appendix 157
Care, maintenance and disposal 159
General 159
Cleaning 159
Maintenance 159
Safety 159
Operation in dusty environments 159
Disposal 160
Guarantee provisions 162
Fronius manufacturer's warranty 162
Components for automatic Full Backup backup power changeover 163
Components for automatic Full Backup backup power changeover 163
Status codes and remedy 165
Display 165
Status Codes 165
Technical data 166
Fronius Primo GEN24 8.0 / 8.0 Plus 166
Fronius Primo GEN24 10.0 / 10.0 Plus 169
WLAN 172
Technical data of surge protective device DC SPD type 1+2 GEN24 173
Explanation of footnotes 173
Integrated DC disconnector 174
Circuit diagrams 175
Circuit Diagram - PV Point (OP) 177
Circuit Diagram 177
Circuit Diagram - PV Point (OP) Australia 178
Circuit Diagram 178
Fronius Primo GEN24 and BYD Battery-Box Premium HV 179
Circuit Diagram 179
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Fronius Primo GEN24 with two BYD Battery-Box Premium HV connected in parallel 180
Circuit Diagram 180
Fronius Primo GEN24 with three BYD Battery-Box Premium HV connected in parallel 181
Circuit Diagram 181
Fronius Primo GEN24 and LG RESU FLEX 182
Circuit Diagram 182
Automatic switch to backup power 1-pin double separation - e.g. Austria 183
Circuit Diagram 183
Automatic switch to backup power 1-pin single separation - e.g. Australia 184
Circuit Diagram 184
Automatic switch to backup power 2-pin double separation - e.g. Germany 185
Circuit Diagram 185
Automatic switch to backup power 2-pin single separation - e.g. France, Spain 186
Circuit Diagram 186
Automatic switch to backup power 2-pin double separation - e.g. UK 187
Circuit Diagram 187
Automatic switch to backup power 2-pin double separation with ext. grid and system protec-
tion - e.g. Italy
188
Circuit Diagram 188
Fronius Primo GEN24 with Enwitec Box 189
Circuit Diagram 189
Wiring diagram - surge protective device SPD 190
Circuit Diagram 190
Dimensions of the inverter 191
Fronius Primo GEN24 8 - 10 kW 193
Fronius Primo GEN24 8 - 10 kW 193
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Safety rules
Explanation of
safety notices WARNING!
Indicates a potentially hazardous situation.
▶Death or serious injury may result if appropriate precautions are not taken.
CAUTION!
Indicates a situation where damage could occur.
▶If not avoided, minor injury and/or damage to property may result.
NOTE!
Indicates a risk of flawed results and possible damage to the equipment.
If you see any of the symbols depicted in the "Safety rules" chapter, special care
is required.
Safety CAUTION!
Danger from crushing due to the incorrect handling of attachments and con-
nection parts.
Injuries to limbs may result.
▶When lifting up, putting down and attaching the inverter, use the integrated
grips.
▶When fitting attachments, ensure that no limbs are located between the at-
tachment and the inverter.
▶Do not hold onto the individual poles on the terminals when locking and un-
locking.
General The device has been manufactured in line with the state of the art and according
to recognised safety standards. In the event of incorrect operation or misuse,
there is a risk of
-Injury or death to the operator or a third party
-Damage to the device and other material assets belonging to the operating
company
All personnel involved in commissioning, maintenance, and servicing of the
device must:
-Be suitably qualified
-Have knowledge of and experience in dealing with electrical installations
-Have fully read and precisely followed these Operating Instructions
In addition to the Operating Instructions, all applicable local rules and regula-
tions regarding accident prevention and environmental protection must also be
followed.
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All safety and danger notices on the device:
-Must be kept in a legible state
-Must not be damaged
-Must not be removed
-Must not be covered, pasted, or painted over
Only operate the device when all protection devices are fully functional. If the
protection devices are not fully functional, there is a danger of
-Injury or death to the operator or a third party
-Damage to the device and other material assets belonging to the operating
company
Any safety devices that are not fully functional must be repaired by an author-
ized specialist before the device is switched on.
Never bypass or disable protection devices.
For the location of the safety and danger notices on the device, refer to the
chapter headed "Warning notices on the device" in the Operating Instructions for
your device.
Faults that could compromise safety must be remedied before switching on the
device.
Environmental
conditions
Operation or storage of the device outside the stipulated area will be deemed as
not in accordance with the intended purpose. The manufacturer accepts no liab-
ility for any damage resulting from improper use.
Qualified per-
sonnel
The servicing information contained in these operating instructions is intended
only for the use of qualified service engineers. An electric shock can be fatal. Do
not carry out any actions other than those described in the documentation. This
also applies to qualified personnel.
All cables and leads must be secured, undamaged, insulated and adequately di-
mensioned. Loose connections, scorched, damaged or inadequately dimensioned
cables and leads must be immediately repaired by authorised personnel.
Maintenance and repair work must only be carried out by an authorised special-
ist.
It is impossible to guarantee that bought-in parts are designed and manufac-
tured to meet the demands made on them, or that they satisfy safety require-
ments. Use only original spare parts (also applies to standard parts).
Do not carry out any alterations, installations, or modifications to the device
without first obtaining the manufacturer's permission.
Components that are not in perfect condition must be changed immediately.
Noise emission
values
The sound power level of the inverter is specified in the Technical data.
The device is cooled as quietly as possible with the aid of an electronic temperat-
ure control system; this depends on the amount of converted power, the ambient
temperature, the level of soiling of the device, etc.
It is not possible to provide a workplace-related emission value for this device
because the actual sound pressure level is heavily influenced by the installation
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situation, the grid quality, the surrounding walls and the properties of the room
in general.
EMC measures In certain cases, even though a device complies with the standard limit values for
emissions, it may affect the application area for which it was designed (e.g., when
there is equipment that is susceptible to interference at the same location, or if
the site where the device is installed is close to either radio or television receiv-
ers). If this is the case, then the operator is obliged to take action to rectify the
situation.
Backup power This system has backup power functions. This enables a replacement power sup-
ply to be established in the event of a failure in the public grid.
Where an automatic backup power supply is installed, a backup power warning
notice (https://www.fronius.com/en/search-page, item number: 42,0409,0275)
must be fitted on the electrical distributor.
Maintenance and installation work in the home network requires both disconnec-
tion on the utility side and deactivation of the replacement power mode by open-
ing the integrated DC disconnector on the inverter.
Depending on the insolation conditions and the battery state of charge, the
backup power supply is automatically deactivated and activated. This can cause
the backup power supply to unexpectedly return from standby mode. Therefore,
installation work can only be performed on the home network when the backup
power supply is deactivated.
Influencing factors on the total power in backup power mode:
Reactive power
Electrical loads with a power factor not equal to 1 also require reactive power in
addition to effective power. The reactive power also loads the inverter. Therefore,
to correctly calculate the actual total power, it is not the rated power of the load
that is relevant, but the current caused by effective and reactive power.
Devices with a high reactive power are mainly electric motors such as:
-Water pumps
-Circular saws
-Blowers and fans
High starting current
Electrical loads that need to accelerate a large mass usually require a high start-
ing current. This can be up to 10 times higher than the nominal current. The max-
imum current of the inverter is available for the starting current. Loads with too
high starting currents therefore cannot be started/operated, even though the
nominal power of the inverter suggests that they can. When dimensioning the
backup power circuit, the connected load power and any starting current must
also be taken into account.
Devices with high starting currents are, for example:
-Devices with electric motors (e.g. lifting platform, circular saws, planing
bench)
-Devices with large transmission ratio and flywheel mass
-Devices with compressors (e.g. compressed air compressors, air conditioning
systems)
IMPORTANT!
Very high starting currents can cause short-term distortion or a drop in output
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