FRO­NIUS Tauro 50-3 User manual

Fronius prints on elemental chlorine free paper (ECF) sourced from certified sustainable forests (FSC).
/ Perfect Charging / Perfect Welding / Solar Energy
Fronius Tauro 50-3
Fronius Tauro ECO 50-3
Fronius Tauro ECO 99-3
Fronius Tauro ECO 100-3
EN
Operating instructions
42,0426,0307,EN 017-23112021

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 7
Copyright 7
Protective earthing (PE) 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
Protection of people and equipment 13
Safety 13
Warning notices and rating plate on the device 13
WSD (wired shutdown) 14
Central grid and system protection 14
RCMU 14
Surge protective device 14
Surge protective device (SPD) 15
Proper use 16
Intended use 16
Regulations governing the photovoltaic system 16
Functional principle 17
Functional principle 17
Cooling of the inverter through forced-air ventilation 17
Power derating 17
Control elements and connections 18
Controls and displays 18
PV connections - Tauro 50-3-D (direct) 18
PV connections - Tauro Eco 50-3-D (direct) 19
PV connections - Tauro Eco 99-3-D / 100-3-D (direct) 19
PV connections - pre-combined 19
Optional DC disconnector lock 20
Mounting option for third-party components 20
Data communication area in the inverter 20
Data communication area 21
Internal schematic connection diagram of the IOs 22
Button functions and LED status indicator 23
Installation and commissioning 25
Installation location and position 27
Choosing the location of the inverter 27
Installation position 28
Transport 30
Crane transport 30
Transporting by counterbalanced lift truck or lift truck 30
Mounting the inverter 31
Selecting the fixing material 31
Mounting bracket dimensions 31
Mounting the inverter on the wall 32
Mounting the inverter on floor racks 33
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Connecting the inverter to the public grid (AC side) 34
Monitoring the grid 34
AC connection area 34
Connecting aluminium cables 35
Permitted cables 35
Maximum alternating current fuse protection 36
Changing the clamping area for V-type terminal 36
Additional PE introduction for earthing 36
Safety 37
Opening the inverter 38
Switching off the AC disconnector option 38
Connecting the inverter to the public grid - Singlecore 38
Connecting the inverter to the public grid - Multicore 40
Connecting the inverter to the public grid - Daisy Chain 41
Connecting cables with a cable lug 43
Connecting the PV cable to the inverter 44
Safety 44
General comments regarding solar modules 45
Permitted cables 45
DC fuse protection - pre-combined 46
Example of Fronius Tauro Eco 50-3-P / 99-3-P / 100-3-P combiner box 46
Example Fronius Tauro 50-3-P combiner box 47
Distribution of the solar module strings for the direct version 47
Connecting PV cables - MC4 connector 48
MC4 connector cover 48
Connecting PV cables - Pre-combined 49
Connecting cables with a cable lug 50
Replacing the string fuses 50
Closing and switching on the inverter 52
Connecting the data communication cable 54
Modbus participants 54
Permitted cables for the data communication area 54
Multiple inverters in one network 55
Routing data communication cables 55
WSD (wired shutdown) 57
Using for the first time 58
Starting the inverter for the first time 58
Fronius system monitoring (Pilot) display 58
Installation with the app 58
Installation using the web browser 59
Switch off power to the inverter 60
Switch off power to the inverter 60
Settings - website of the inverter 61
User settings 63
User login 63
Selecting the language 63
Device configuration 64
Components 64
Functions and IOs 64
"PSC editor - AUS - Demand Response Modes (DRM)" 65
Demand Response Modes (DRM) 65
System 66
General 66
Update 66
Setup wizard 66
Restoring the factory settings 66
Event Log 66
Information 66
Licence manager 67
Support 67
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Communication 69
Network 69
Modbus 70
Fronius Solar API 71
Safety and grid requirements 72
Feed-in limitation 72
I/O power management 72
Connection diagram - 4 relays 73
I/O power management settings - 4 relays 74
Connection diagram - 3 relays 75
I/O power management settings - 3 relays 76
Connection diagram - 2 relays 77
I/O power management settings - 2 relays 78
Connection diagram - 1 relay 79
I/O power management settings - 1 relay 80
Appendix 81
Status codes and remedy 83
Status Codes 83
Technical data 84
Tauro 50-3-D / 50-3-P 84
Tauro Eco 50-3-D / 50-3-P 85
Tauro Eco 99-3-D / 99-3-P 87
Tauro Eco 100-3-D / 100-3-P 89
Explanation of footnotes 91
Integrated DC disconnector 91
Applicable standards and guidelines 93
CE mark 93
WLAN 93
Power failure 93
Service, warranty terms and conditions and disposal 94
Fronius SOS 94
Fronius manufacturer's warranty 94
Disposal 94
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Safety rules
Explanation of
safety notices WARNING!
Indicates a potentially hazardous situation.
▶If not avoided, death or serious injury may result.
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 re-
quired.
General The device has been manufactured in line with the state of the art and according to re-
cognised 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 regulations regard-
ing 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 authorized spe-
cialist 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.
6

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 liability for any
damage resulting from improper use.
Qualified person-
nel
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 quali-
fied personnel.
All cables and leads must be secured, undamaged, insulated, and adequately dimen-
sioned. 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 manufactured to meet
the demands made on them, or that they satisfy safety requirements. 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 installation
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 temperature con-
trol 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 emis-
sions, it may affect the application area for which it was designed (e.g. when there is
sensitive equipment at the same location, or if the site where the device is installed is
close to either radio or television receivers). If this is the case, then the operator is ob-
liged to take appropriate action to rectify the situation.
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.
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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 purchaser. If you have any sugges-
tions for improvement, or can point out any mistakes that you have found in the instruc-
tions, we will be most grateful for your comments.
Protective earth-
ing (PE)
Connection of a point in the device, system or installation to earth to protect against elec-
tric 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 connecting the PE conductor, en-
sure that it is secured against accidental disconnection. All points listed under "Connect-
ing the inverter to the public grid (AC side)" must be observed, including the use of wash-
ers, screw locks, and nuts with the defined torque.
It must be ensured that when using the strain-relief devices, the ground conductor is the
last to be disconnected in the event of a possible failure. When connecting the ground
conductor, the minimum cross-section requirements specified by the respective national
regulations must be observed. In addition, the minimum cross-section of the PE conduct-
or must be at least half of the phase cross-sections according to the product standard
IEC 62109-1, as a cross-section of at least 35 mm² (50 kW) or 70 mm² (99.99 / 100 kW)
must be used for the phases (L1 / L2 / L3).
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General information
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