FRO­NIUS Tauro 50-3 User manual

Operating
Instructions
Fronius Tauro 50-3
Fronius Tauro ECO 50-3
Fronius Tauro ECO 99-3
Fronius Tauro ECO 100-3
42,0426,0307,EN 032-19012024
EN Operating Instructions

Contents
Safety rules 6
Explanation of safety notices 6
General 6
Environmental conditions 7
Qualified personnel 7
Safety measures at the installation location 7
Noise emission values 7
EMC measures 7
Data protection 8
Copyright 8
Protective earthing (PE) 8
Maintenance 8
General information 9
Description of the device 11
Description of the device 11
AC Daisy Chain 11
String fuses 11
Fronius Solar.web 12
Local communication 13
Protection of people and equipment 14
Safety 14
Warning notices and rating plate on the device 14
WSD (wired shutdown) 15
Central grid and system protection 15
RCMU 15
Surge protective device 15
Surge protective device (SPD) 16
AFCI – Arc Fault Circuit Interrupter (ArcGuard) 16
Safe state 17
Proper use 18
Intended use 18
Regulations governing the photovoltaic system 18
Functional principle 19
Functional principle 19
Cooling of the inverter through forced-air ventilation 19
Power derating 19
Control elements and connections 20
Controls and displays 20
PV connections - Tauro 50-3-D (direct) 20
PV connections - Tauro Eco 50-3-D (direct) 21
PV connections - Tauro 50-3-D (30A fuses) 21
PV connections - Tauro Eco 50-3-D (30A fuses) 21
PV connections - Tauro Eco 99-3-D / 100-3-D (direct, 20 A option) 22
PV connections - Tauro Eco 99-3-D / 100-3-D (direct, 30 A option) 22
PV connections - pre-combined 22
Mounting option for third-party components 23
Data communication area in the inverter 23
Data communication area 23
Internal schematic connection diagram of the IOs 25
Button functions and LED status indicator 25
Installation and commissioning 29
General 31
System component compatibility 31
Installation location and position 32
Choosing the location of the inverter 32
Installation position 33
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EN

Transport 35
Crane transport 35
Transporting by counterbalanced lift truck or lift truck 35
Mounting the inverter 36
Selecting the fixing material 36
Mounting bracket dimensions 36
Mounting the inverter on the wall 36
Mounting the inverter on floor racks 38
Connecting the inverter to the public grid (AC side) 39
Monitoring the grid 39
AC connection area 39
Connecting aluminium cables 40
Permitted cables 40
Maximum alternating current fuse protection 41
Changing the clamping area for V-type terminal 42
Sector conductors at the V-type terminal 42
Additional PE introduction for earthing 42
Safety 43
Opening the inverter 44
Switching off the AC disconnector option 44
Connecting the inverter to the public grid - Singlecore 44
Connecting the inverter to the public grid - Singlecore with PEN conductor 45
Connecting the inverter to the public grid - Multicore 47
Connecting the inverter to the public grid - Daisy Chain 48
Connecting cables with a cable lug 50
Connecting the PV cable to the inverter 51
Safety 51
General comments regarding PV modules 52
Permitted cables 52
DC fuse protection - pre-combined 53
Example of Fronius Tauro Eco 50-3-P / 99-3-P / 100-3-P combiner box 54
Example Fronius Tauro 50-3-P combiner box 55
Distribution of the solar module strings for the direct version 55
Connecting PV cables - MC4 connector 56
MC4 connector cover 56
Connecting PV cables - Pre-combined 57
Connecting cables with a cable lug 58
Replacing the string fuses 59
Closing and switching on the inverter 61
Connecting the data communication cable 63
Modbus participants 63
Permitted cables for the data communication area 63
Multiple inverters in one network 64
Routing data communication cables 64
WSD (wired shutdown) 66
Using for the first time 68
Starting the inverter for the first time 68
Fronius system monitoring (Pilot) display 68
Installation with the app 68
Installation using the web browser 69
Switching off current supply and restarting the inverter 71
De-energising the inverter and switching it on again 71
Settings - user interface of the inverter 73
User settings 75
User login 75
Selecting the language 75
Device configuration 76
Components 76
Functions and IOs 76
"PSC editor - AUS - Demand Response Modes (DRM)" 77
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Demand Response Modes (DRM) 77
Inverter 77
System 79
General 79
Update 79
Setup wizard 79
Restoring the factory settings 79
Event Log 79
Information 79
License Manager 80
Support 81
Communication 82
Network 82
Modbus 83
Remote control 84
Fronius Solar API 85
Internet Services 85
Safety and grid requirements 86
Country setup 86
Requesting inverter codes in Solar.SOS 86
Feed-in limitation 87
I/O power management 88
Connection diagram - 4 relay 88
I/O power management settings - 4 relays 90
Connection diagram - 3 relay 91
I/O power management settings - 3 relays 92
Connection diagram - 2 relay 93
I/O power management settings - 2 relays 94
Connection diagram - 1 relay 95
I/O power management settings - 1 relay 96
Appendix 97
Status codes and remedy 99
Status Codes 99
Technical data 100
Tauro 50-3-D / 50-3-P 100
Tauro Eco 50-3-D / 50-3-P 102
Tauro Eco 99-3-D / 99-3-P 104
Tauro Eco 100-3-D / 100-3-P 107
WLAN 109
Explanation of footnotes 110
Integrated DC disconnector 110
Applicable standards and guidelines 112
CE mark 112
WLAN 112
Power failure 112
Service, warranty terms and conditions and disposal 113
Fronius SOS 113
Fronius manufacturer's warranty 113
Disposal 113
5
EN

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.
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 operator
All personnel involved in commissioning and maintenance of the device must:
-Be suitably qualified,
-Have knowledge of and experience in dealing with electrical installations and
-Read and follow these Operating Instructions carefully.
In addition to the Operating Instructions, all applicable local rules and regula-
tions regarding accident prevention and environmental protection must also be
followed.
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 risk of:
-Injury or death to the operator or a third party
-Damage to the device and other material assets belonging to the operator
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.
6

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.
Repair work must only be carried out by authorised personnel.
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.
Safety measures
at the installa-
tion location
When installing devices with openings for cooling air, ensure that the cooling air
can enter and exit unhindered through the air ducts. Only operate the charger in
accordance with the degree of protection shown on the rating plate.
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
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.
7
EN

Data protection The user is responsible for the safekeeping of any changes made to the factory
settings. The manufacturer accepts no liability for any deleted personal settings.
Copyright Copyright of these operating instructions remains with the manufacturer.
The text and illustrations are all technically correct at the time of printing. We
reserve the right to make changes. The contents of the operating instructions
shall not provide the basis for any claims whatsoever on the part of the pur-
chaser. If you have any suggestions for improvement, or can point out any mis-
takes that you have found in the instructions, we will be most grateful for your
comments.
Protective
earthing (PE)
Connection of a point in the device, system or installation to earth to protect
against electric shock in the event of a fault. When installing the Tauro inverter,
the PE connection is mandatory as it is a protection class 1 device. When con-
necting the PE conductor, ensure that it is secured against accidental disconnec-
tion. All points listed under "Connecting the inverter to the public grid (AC side)"
must be observed, including the use of washers, screw locks, and nuts with the
defined torque.
It must be ensured that when using the strain-relief devices, the ground con-
ductor is the last to be disconnected in the event of a possible failure. When con-
necting the ground conductor, the minimum cross-section requirements spe-
cified by the respective national regulations must be observed. In addition, the
minimum cross-section of the PE conductor must be at least half of the phase
cross-sections according to the product standard IEC 62109-1, as a cross-sec-
tion of at least 35 mm² (50 kW) or 70 mm² (99.99 / 100 kW) must be used for the
phases (L1 / L2 / L3).
Maintenance In principle, Tauro inverters are maintenance-free. If maintenance work is never-
theless carried out on the inverter, such as cleaning or replacing components,
this must be done in consultation with a Fronius-trained service technician. The
manufacturer accepts no liability for damage caused by improper use.
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General information
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