Fronius Fronius Tauro, Fronius Tauro Eco Operating Instruction [EN]

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Operating Instructions

Fronius Tauro 50-3 Fronius Tauro ECO 50-3 Fronius Tauro ECO 99-3 Fronius Tauro ECO 100-3

Operating Instructions

42,0426,0307,EN 028-23022023

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 16 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 Optional DC disconnector lock 23 Mounting option for third-party components 23 Data communication area in the inverter 23 Data communication area 24 Internal schematic connection diagram of the IOs 25 Button functions and LED status indicator 26

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

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 Additional PE introduction for earthing 42 Safety 43 Opening the inverter 43 Switching off the AC disconnector option 44 Connecting the inverter to the public grid - Singlecore 44 Connecting the inverter to the public grid - Multicore 45 Connecting the inverter to the public grid - Daisy Chain 47 Connecting cables with a cable lug 48

Connecting the PV cable to the inverter 50

Safety 50 General comments regarding PV modules 51 Permitted cables 51 DC fuse protection - pre-combined 52 Example of Fronius Tauro Eco 50-3-P / 99-3-P / 100-3-P combiner box 53 Example Fronius Tauro 50-3-P combiner box 54 Distribution of the solar module strings for the direct version 54 Connecting PV cables - MC4 connector 55 MC4 connector cover 55 Connecting PV cables - Pre-combined 56 Connecting cables with a cable lug 57 Replacing the string fuses 58 Closing and switching on the inverter 60

Connecting the data communication cable 62

Modbus participants 62 Permitted cables for the data communication area 62 Multiple inverters in one network 63 Routing data communication cables 63 WSD (wired shutdown) 65

Using for the first time 67

Starting the inverter for the first time 67 Fronius system monitoring (Pilot) display 67 Installation with the app 67 Installation using the web browser 68

Switching off current supply and restarting the inverter 70

De-energising the inverter and switching it on again 70

Settings - user interface of the inverter 71

User settings 73

User login 73 Selecting the language 73

Device configuration 74

Components 74 Functions and IOs 74 "PSC editor - AUS - Demand Response Modes (DRM)" 75 Demand Response Modes (DRM) 75

Inverter 75

System 77

General 77 Update 77 Setup wizard 77 Restoring the factory settings 77 Event log 77 Information 77 Licence manager 78 Support 79

Communication 80

Network 80 Modbus 81 Remote control 82 Fronius Solar API 82

Safety and grid requirements 83

Country setup 83 Feed-in limitation 83 I/O power management 84 Connection diagram - 4 relay 85 I/O power management settings - 4 relays 86 Connection diagram - 3 relay 87 I/O power management settings - 3 relays 88 Connection diagram - 2 relay 89 I/O power management settings - 2 relays 90 Connection diagram - 1 relay 91 I/O power management settings - 1 relay 92

Appendix 93

Status codes and remedy 95

Status Codes 95

Technical data 96

Tauro 50-3-D / 50-3-P 96 Tauro Eco 50-3-D / 50-3-P 98 Tauro Eco 99-3-D / 99-3-P 100 Tauro Eco 100-3-D / 100-3-P 102 WLAN 105 Explanation of footnotes 105 Integrated DC disconnector 105

Applicable standards and guidelines 107

CE mark 107 WLAN 107 Power failure 107

Service, warranty terms and conditions and disposal 108

Fronius SOS 108 Fronius manufacturer's warranty 108 Disposal 108

Safety rules

Explanation of safety notices

Indicates a potentially hazardous situation.

▶

Indicates a situation where damage could occur.

▶

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:

WARNING!

If not avoided, death or serious injury may result.

CAUTION!

If not avoided, minor injury and/or damage to property may result.

NOTE!

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 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 authorized 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

Qualified personnel

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.

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 dimensioned. 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

Noise emission values

EMC measures In certain cases, even though a device complies with the standard limit values for

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.

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 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.

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 receivers). If this is the case, then the operator is obliged 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.

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 suggestions for improvement, or can point out any mistakes that you have found in the instructions, we will be most grateful for your comments.

Protective earthing (PE)

Maintenance In principle, Tauro inverters are maintenance-free. If maintenance work is never-

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 connecting the PE conductor, ensure that it is secured against accidental disconnection. 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 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 conductor 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).

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.

General information

Description of the device

AC Daisy Chain With the "AC Daisy Chain" inverter version, the AC lead can be fed directly from

The inverter transforms the direct current generated by the solar modules into alternating current. This alternating current is fed into the public grid synchronously with the grid voltage. The inverter has been developed exclusively for use in grid-connected photovoltaic systems; it is impossible to generate energy independently of the public grid.

Thanks to its design and the way it works, the inverter is extremely safe both to install and to operate. The inverter automatically monitors the public grid. In the event of abnormal grid conditions, the inverter ceases operating immediately and stops feeding power into the grid (e.g. if the grid is switched off, if there is an interruption, etc.). The grid is monitored by monitoring the voltage, frequency and islanding conditions.

the inverter to another inverter. Several Tauro inverters, up to an output power of max. 200 kW, can be thereby be quickly connected to one another.

The minimum cable cross-section is defined by the fuse at the mains connection point. A larger cable cross-section can be selected at any time. The applicable national standards must be taken into account and applied.

String fuses Only applies to device types Fronius Tauro 50-3-D / Eco 50-3-D / Eco 99-3-D /

Eco 100-3-D (direct):

String fuses are used in the Fronius Tauro to provide additional protection for the solar modules. The maximum short circuit current Isc, the maximum module return current IR or

the maximum string fuse rating specified in the module data sheet of the respective solar module is crucial in affording the solar modules the correct fuse protection.

The national regulations regarding fuse protection must be observed. The electrical engineer carrying out the installation is responsible for the correct choice of string fuses.

To replace the string fuses, see chapter Replacing the string fuses on page 58.

Eco 50-3-D

Eco 99-3-D / Eco 100-3-D Standard

F1.1 - F2.7

Eco 99-3-D / Eco 100-3-D

Standard

F3.1 - F3.8

50-3-D

F1.1 - F3.7

F3.1-

F3.1+

F3.2-

F3.2+

F3.3-

F3.3+

F3.4-

F3.4+

F3.5-

F3.5+

Eco 50-3-D

30A fuses F1.1 - F2.5

50-3-D / Eco 99-3-D / Eco 100-3-D

30A fuses F1.1 - F3.5

Fronius Solar.web

With Fronius Solar.web or Fronius Solar.web Premium, the PV system can be easily monitored and analysed by the system owner and installer. If configured accordingly, the inverter transmits data such as power, yields, load, and energy balance to Fronius Solar.web. For more information see Solar.web - monitoring &

analysis.

Configuration is carried out via the setup wizard, see chapter Installation with

the app on page 67 or Installation using the web browser on page 68.

Prerequisites for configuration:

Internet connection (download: min. 512 kBit/s, upload: min. 256 kBit/s)*.

User account on solarweb.com.

Completed configuration via the setup wizard.

* The information given does not constitute an absolute guarantee of fault-

less function. High error rates in the transmission, reception ﬂuctuations or transmission drop-outs can have a negative effect on the data transfer. Fronius recommends testing the Internet connection on site according to the minimum requirements.

Local communication

The inverter can be found via the Multicast DNS protocol (mDNS). It is recommended to search for the inverter by the assigned host name.

The following data can be retrieved via mDNS:

NominalPower

Systemname

DeviceSerialNumber

SoftwareBundleVersion

Protection of people and equipment

Safety

Warning notices and rating plate on the device

WARNING!

Danger due to incorrect operation and incorrectly performed work.

This can result in serious injury and damage to property.

All the work and functions described in this document must only be carried

▶

out by trained and qualified personnel. Read and understand this document.

▶

Read and understand all the Operating Instructions for the system compon-

▶

ents, especially the safety rules.

WARNING!

Danger from electromagnetic fields. Electromagnetic fields are generated during operation.

Effects on the health of persons, e.g. those wearing a pacemaker can result.

Do not remain closer than 20 cm from the inverter for a prolonged period of

▶

time.

There are warning notices and safety symbols on and in the inverter. These warning notices and safety symbols must not be removed or painted over. They warn against incorrect operation, as this may result in serious injury and damage.

Symbols on the rating plate:

CE mark – confirms compliance with applicable EU directives and regulations.

UKCA mark – confirms compliance with applicable UK directives and regulations.

A 4-digit number (coded production date) is printed at the very bottom of the rating plate, from which the production date can be calculated. If you subtract the value 11 from the first two digits, you get the production year. The last two digits represent the calendar week in which the device was produced.

Example: Value on rating plate = 3205

32 - 11 = 21 → Production year 2021 05 = Calendar week 05

WEEE mark – waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law.

RCM mark – tested in accordance with the requirements of Australia and New Zealand.

ICASA mark – tested in accordance with the requirements of the Independent Communications Authority of South Africa.

CMIM mark – tested in accordance with IMANOR requirements for import regulations and compliance with Moroccan standards.

Safety symbols:

Risk of serious injury and property damage due to incorrect operation.

Do not use the functions described here until you have fully read and understood the following documents:

These Operating Instructions.

All Operating Instructions for the system components of the

photovoltaic system, especially the safety rules.

Dangerous electrical voltage.

Before opening the machine, wait for the capacitors to discharge!

Text of the warning notices:

WSD (wired shutdown)

Central grid and system protection

WARNING!

An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energised and insulated.

The wired shutdown (WSD) interrupts the inverter feeding energy into the grid if the trigger device (switch, e.g. emergency stop or fire alarm switch) has been activated.

If an inverter (secondary device) fails, it is bypassed and the other inverters continue operating. If a second inverter (secondary device) or the inverter (primary device) fails, the operation of the entire WSD chain is interrupted.

For installation, see WSD (wired shutdown) on page 65.

The inverter offers the option to use the integrated AC relays as coupling switches in conjunction with a central grid and system protection unit (in accordance with VDE-AR-N 4105:2018:11 §6.4.1). For this purpose, the central trigger device (switch) must be integrated into the WSD chain as described in the chapter "WSD (Wired Shut Down)".

RCMU The inverter is equipped with a universal current-sensitive residual current monit-

oring unit (RCMU = Residual Current Monitoring Unit) in accordance with IEC 62109-2 and IEC63112. This device monitors residual currents from the PV module to the AC output of the inverter and disconnects the inverter from the grid in the event of unauthorised residual current.

Surge protective device

The inverter is equipped with an integrated surge protective device on the DC and AC side in accordance with IEC 62109-2. The surge protective device protects the system against damage in the event of a surge.

Surge protective device (SPD)

AFCI – Arc Fault Circuit Interrupter (ArcGuard)

The surge protective device (SPD) protects against temporary overvoltages and dissipates surge currents (e.g. lightning strike). Building on an overall lightning protection concept, the SPD helps to protect your PV system components.

If the surge protective device is triggered, the colour of the indicator changes from green to red (mechanical display).

There is the option of a digital indication when an SPD has tripped. For setting this function, see PDF "Temporary SPD Triggering" in the Service & Support area at www.fronius.com

IMPORTANT!

After setting the function described above, the inverter will also respond if the 2pole signal cable of the surge protective device is interrupted or damaged.

Available ex works.

AFCI (Arc Fault Circuit Interrupter) protects against arcing faults and in the narrower sense is a protection device against contact faults. The AFCI evaluates any faults that occur in the current and voltage curve with an electronic circuit and switches off the circuit when a contact fault is detected. This prevents overheating on poor contacts and possible fires.

IMPORTANT!

Active solar module electronics can interfere with the function of the ArcGuard. Fronius does not guarantee the correct functioning when using Fronius ArcGuard in combination with active solar module electronics.

CAUTION!

Danger due to incorrect or unprofessional DC installation.

This can result in risk of damage and, in turn, risk of fire to the PV system due to inadmissible thermal loads that arise with an arc.

Check that plug connections are in good condition.

▶

Repair incorrect insulation as appropriate.

▶

Complete connections as per the specifications.

▶

IMPORTANT!

Fronius will not accept any costs associated with production downtimes, installer costs, etc., that may arise as the result of a detected arc and its consequences. Fronius accepts no liability for damage that can occur despite the presence of the integrated Arc Fault Circuit Interrupter/extinguishing system ( e.g. caused by a parallel arc).

Automatic reconnection

To restart the AFCI, no manual procedure is required if a minimum interruption time of 5 minutes is ensured before continuing operation. When interrupting for the fifth time within a 24 h period, the AFCI is only allowed to be reset manually before the AFCI does reconnect. Afterwards, the AFCI may return to automatic reconnection mode.

Safe state If one of the following safety devices trips, the inverter will change to a safe

state:

WSD

isolation measurement

RCMU and

AFCI

In the safe state, the inverter no longer feeds into the grid and is disconnected from the grid by opening the AC relays.

Proper use

Intended use The solar inverter is intended exclusively to convert direct current from solar

modules into alternating current and to feed this into the public grid. Utilisation not in accordance with the intended purpose comprises:

Utilisation for any other purpose, or in any other manner

Making any modifications to the inverter that have not been expressly ap-

proved by Fronius Installation of parts that are not distributed or expressly approved by Froni-

The manufacturer shall not be liable for any damage resulting from such use. All warranty claims will be forfeited.

Intended use also includes complying with all the instructions in the Operating Instructions.

Regulations governing the photovoltaic system

The inverter is designed to be connected and used exclusively in conjunction with solar modules. Use of the inverter with other DC generators (e.g. wind generators) is not permitted.

When designing the photovoltaic system, ensure that all of its components are operated within their permitted operating ranges at all times.

Observe all the measures recommended by the solar module manufacturer to ensure that the solar module retains its properties in the long term.

Functional principle

Cooling of the inverter through forced-air ventilation

The inverter operates fully automatically. As soon after sunrise as there is sufficient energy available from the solar modules, the inverter starts checking the PV system (insulation measurement), and the grid (grid voltage and grid frequency). If all values are within the normative scope, automatic connection to the grid and feeding of energy into the grid takes place.

The inverter works in a way that ensures the maximum power possible is obtained from the solar modules. This is known as "Maximum Power Point Tracking" (MPPT). In the event of shading of the solar modules, the function "Dynamic Peak Manager" can be used to obtain the majority of the local maximum output (LMPP) of the PV system.

After dusk, as soon as the power available has fallen below the level at which energy can be fed into the grid, the inverter disconnects the power electronics completely from the grid and stops running. It retains all its settings and stored data.

Cooling of the inverter is performed by a forced-air ventilation system via temperature-controlled fans. Air is sucked in from the front and fed, via a sealed duct, through the AC and DC heat sink, before passing directly over the inductors and dissipating. The sealed air duct prevents the electronics compartment from coming into contact with the ambient air. This approach largely prevents any contamination of the electronics compartment. The fan speed and temperature of the inverter are monitored.

The variable-speed, ball-bearing mounted fans in the inverter permit the following:

Optimum cooling of the inverter

Cooler components, therefore a longer service life

Lowest-possible energy consumption

High output power including in top temperature range of the inverter

Power derating If the inverter becomes too hot, it automatically reduces the current output

power in order to protect itself. Reasons for the inverter becoming too hot include too high an ambient temperature or inadequate heat dissipation (e.g. when installed in containers without proper heat dissipation measures).

A power derating system restricts the output from the inverter in order to prevent the temperature from exceeding the permissible value. If a maximum temperature is exceeded, the inverter switches off in a safe state and does not resume feeding energy into the grid until the device has cooled down.

Control elements and connections

Controls and displays

(1) DC disconnector

Disconnects the electrical connection from the solar modules to the inverter. Depending on the device type, 2 or 3 DC disconnectors are installed. The DC disconnectors can be secured against switching on with a padlock.

(2) AC disconnector option

The optional AC disconnector breaks the connection from the inverter to the grid

(3) Button function

For further information about the button function, see But-

ton functions and LED status indicator

(4) LED status indicator

For further information about the LED status indicator, see

Button functions and LED status indicator

PV connections Tauro 50-3-D (direct)

PV connections Tauro Eco 50-3D (direct)

PV connections Tauro 50-3-D (30A fuses)

PV connections Tauro Eco 50-3D (30A fuses)

PV connections Tauro Eco 99-3D / 100-3-D (direct, 20 A option)

PV connections Tauro Eco 99-3D / 100-3-D (direct, 30 A option)

PV connections pre-combined

Tauro Eco 50-3-P / 99-3-P / 100-3-P Tauro 50-3-P

Optional DC disconnector lock

With the optionally available DC disconnector lock, the inverter can be secured against unintentional switching off.

Mounting option for third-party components

Data communication area in the inverter

Above the DC connection area there is space for mounting third-party components. Components up to a maximum width of 14.5 cm (8 DU) can be mounted on the DIN rail. The components must have a temperature resistance of ‑40 °C to +85 °C.

The data communication area (Pilot PC board) is located above the DC connections in the inverter.

Data communication area

Modbus terminal Push-in terminal for the installation of

Modbus 0, Modbus 1, 12 V and GND (ground).

The data connection to the connected components is established via the Modbus terminal. The inputs M0 and

M1 can be selected for this purpose.

Max. 4 Modbus participants per input, see chapter Modbus participants on page 62.

WSD (wired shutdown) switch Defines the inverter as a WSD primary

device or WSD secondary device.

Position 1: WSD primary device Position 0: WSD secondary device

Modbus 0 (MB0) switch Switches the terminating resistor for

Modbus 0 (MB0) on/off.

Position 1: Terminating resistor on (factory setting)

Position 0: Terminating resistor off

Modbus 1 (MB1) switch Switches the terminating resistor for

Modbus 1 (MB1) on/off.

Position 1: Terminating resistor on (factory setting)

Position 0: Terminating resistor off

Optical sensor

Communication LED

To operate the inverter. See chapter

Button functions and LED status indicator on page 26.

Indicates the inverter connection status.

Operating status LED

Indicates the inverter operating status.

LAN 1 Ethernet connection for data commu-

nication (e.g. WLAN router, home network or for commissioning with a laptop see chapter Installation using

the web browser on page 68).

LAN 2 Reserved for future functions. Only

use LAN 1 to avoid malfunctions.

WSD terminal Push-in terminal for the WSD installa-

tion. See chapter "WSD (wired shut-

down)" on page 65.

IOs terminal Push-in terminal for digital inputs/

outputs. See chapter Permitted

cables for the data communication area on page 62.

The designations (RG0, CL0, 1/5, 2/6, 3/7, 4/8) on the terminal refer to the Demand Response Mode function, see chapter "PSC editor - AUS - Demand

Response Modes (DRM)" on page 75.

Internal schematic connection diagram of the IOs

On the V+/GND pin, it is possible to feed in a voltage of around 12.5–24 V (+ max. 20%) with an external power supply. The outputs IO 0–5 can then be operated with the external voltage. A maximum of 1 A can be drawn per output, with a maximum of 3 A allowed in total. The fuse protection must be located externally.

CAUTION!

Risk of polarity reversal at the terminals due to improper connection of external power supplies.

This may result in severe damage to the inverter.

Check the polarity of the external power supply with a suitable measuring

▶

device before connecting it. Connect the cables to the V+/GND outputs with the correct polarity.

▶

IMPORTANT!

If the total output (6 W) is exceeded, the inverter switches off the entire external power supply.

12 V DC

500 mA

V+ V+

GND

IO0

IO1

IN8

IN9

IN10

IN11

IN6

IN7

IO4

IO5

IO2

IO3

GND

(1)

12 V

USB

TYP A

5 V

IO4

V+

IO0

IO2

IN6

IN8

IN10IN11

IN9

IN7

IO5

IO3

IO1

GND

M0-

M0+

M1-

M1+

SHIELD

V+ V+

GND GND

V+

M0+

SHIELD

M1+

GND

M1-

SHIELD

M0-

GND

(1) Power limitation

Standby

Uncritical Error (flashing)

Critical Error

Network Error

Connecting (flashing)

Connected

1x WLAN access point 2x WPS 3-6 sec. Quit Service Message

Button functions and LED status indicator

Sensor functions

The status of the inverter is shown via the operating status LED. In the event of faults, carry out the individual steps in the Fronius Solar.web live app.

The optical sensor is actuated by touching with a finger.

The status of the connection is shown via the communication LED. To establish the connection, carry out the individual steps in the Fronius Solar.web live app.

1x = WLAN access point (AP) is opened.

Flashing blue

2x = WLAN Protected Setup (WPS) is activated.

Flashing green

3 seconds (max. 6 seconds) = the service notification is terminated.

Lights up yellow

LED status indicator

The inverter is operating correctly.

Lights up green

The inverter starts.

Flashing green

The inverter is in standby, is not operational (e.g. no

feed-in at night) or is not configured.

Lights up yellow

The inverter indicates a non-critical status.

Flashing yellow

The inverter indicates a critical status and there is no

grid power feed process.

Lights up red

The network connection is being established via WPS.

2x = WPS search mode.

Flashing green

The network connection is being established via

WLAN AP. 1x = WLAN AP search mode (active for 30 minutes).

Flashing blue

The network connection is not configured.

Lights up yellow

The inverter is operating correctly, a network fault is in-

dicated.

Lights up red

The inverter is performing an update.

/ Flashing blue

Installation and commissioning

General

System component compatibility

All installed components in the photovoltaic system must be compatible and have the necessary configuration options. The installed components must not restrict or negatively inﬂuence the functioning of the photovoltaic system.

CAUTION!

Risk due to components in the photovoltaic system that are not compatible and/or have limited compatibility.

Incompatible components may limit and/or negatively affect the operation and/or functioning of the photovoltaic system.

Only install components recommended by the manufacturer in the photovol-

▶

taic system. Before installation, check the compatibility of components not expressly re-

▶

commended with the manufacturer.

Installation location and position

min.

50 cm

min. 50 cm

min.

50 cm

min.

50 cm

-30 °C - +65 °C - Option AC-Disconnect

0 - 100 %

-40 °C - +65 °C

Choosing the location of the inverter

Please note the following criteria when choosing a location for the inverter:

Only install on a solid, non-ﬂammable surface

Max. ambient temperatures: -40 °C / +65 °C * with built-in AC disconnector option: -30 °C / +65 °C

Relative humidity: 0 - 100%

When installing the inverter in a switch cabinet or similar closed environment, it is necessary to make sure that the hot air that develops will be dissipated by forced-air ventilation.

When installing the inverter on the outer walls of cattle sheds, it is important to keep a minimum clearance of 2 m between all sides of the inverter and air vents and building openings.

The following surfaces are permissible for installation:

Walls (corrugated metal walls [mounting rails], brick walls, concrete walls, or

other non-ﬂammable surfaces sufficiently capable of bearing loads) Poles (installed using mounting rails, behind the solar modules directly on

the PV mounting system) Flat roofs (if this is for a film roof, make sure that the films comply with the

fire protection requirements and are not highly ﬂammable. Observe the na- tional regulations.) Covered car park roofs (no overhead installation)

The DC disconnectors must always be freely accessible after installation of the inverter.

The inverter is suitable for indoor installation.

flame-resistant

The inverter is suitable for outdoor installation.

Because of its IP 65 protection class, the inverter is resistant to water jets from any direction and can also be used in damp environments.

The inverter is suitable for outdoor installation.

To keep the heating of the inverter as low as possible, it is better not to expose the inverter to direct sunlight. Mount the inverter in a protected location, for example below the solar modules or under a roof overhang.

IMPORTANT! The inverter must not be installed or used at altitudes above 4000 m.

Do not install the inverter in:

Areas where it may be exposed to ammonia, corrosive gases,

acids or salts (e.g. fertiliser storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)

Due to the noise generated by the inverter under certain operating conditions, it should not be installed close to living areas.

Installation position

Do not install the inverter in:

Areas where there is an increased risk of accidents from

farm animals (horses, cattle, sheep, pigs, etc.) Stables or adjoining areas

Storage areas for hay, straw, chaff, animal feed, fertilizers,

etc. Storage or processing areas for fruit, vegetables or viticul-

ture products Areas used in the preparation of grain, green fodder or an-

imal feeds

The inverter is designed to be dust-tight (IP 65). However, in areas with high dust accumulation, the cooling surfaces may collect dust and this may impair the thermal performance. In such cases, regular cleaning is required. Consequently, we do not recommend installation in places and environments with strong dust formation.

The inverter is designed to be installed vertically on a vertical wall. The optional ﬂoor racks must not be used for vertical mounting.

The inverter should have a minimum inclination of 3° in a horizontal installation position so that water can run off. Mounting of the optional ﬂoor racks is recommended. The ﬂoor racks may only be used on an installation position of 0 - 45°.

The inverter is suitable for installation on a sloping surface.

Do not install the inverter on a sloping surface with its connection sockets at the top.

Do not install the inverter at an angle on a vertical wall or column.

Do not install the inverter horizontally on a vertical wall or pillar.

Do not install the inverter on a vertical wall or pillar with its connection sockets facing upwards.

Do not install the inverter overhanging with the connection sockets at the top.

Do not install the inverter overhanging with the connection sockets at the bottom.

Do not install the inverter on the ceiling.

Transport

Crane transport

Transporting by counterbalanced lift truck or lift truck

WARNING!

Danger of serious injury and damage from articles being dropped or falling over.

When transporting by crane:

Hook chains and ropes onto the

▶

suspension points only Always hook chains and ropes onto

▶

both suspension points

WARNING!

Equipment that falls or topples over can cause serious or even fatal injury.

Secure the inverter to prevent it from falling over when transporting on a

▶

counterbalanced lift truck or lift truck. Avoid sudden changes in direction, braking or acceleration

▶

Mounting the inverter

Selecting the fixing material

Mounting bracket dimensions

Use the corresponding fixing materials depending on the subsurface and observe the screw dimension recommendations for the mounting bracket. The installer is responsible for selecting the correct type of fixing.

Dimensions of the mounting bracket - all dimensions in mm.

Mounting the inverter on the wall

1 2

Observe the local regulations for lifting heavy loads or use a crane to lift the device (attach to crane-hoisting lugs)

To attach the inverter to the mounting bracket, use only the screws included in the scope of delivery.

Mounting the inverter on ﬂoor racks

The ﬂoor racks can be ordered as an optional accessory.

Mounting the inverter on a horizontal mounting surface is not mandatory, but recommended. Depending on the surface, different wall plugs and screws are required for ﬂoor mounting the ﬂoor racks. Wall plugs and screws are therefore not included in the scope of supply of the inverter. The installer is responsible for selecting the correct wall plugs and screws.

Mount the inverter and ﬂoor racks

securely to a suitable surface using the appropriate installation materials

Do not climb onto the device!

Connecting the inverter to the public grid (AC side)

Monitoring the grid

AC connection area

IMPORTANT! To provide the best possible grid monitoring, the resistance in the

leads to the mains connections should be as low as possible.

IMPORTANT! Only the following cables may be connected to V-type terminals:

RE (solid round conductor)

RM (stranded round conductor)

SE (solid sector conductor)

SM (stranded sector conductor)

Fine-core cables only in conjunction with ferrules

Fine-core cables without ferrules may only be connected to the M10 threaded bolts of the grid connections using a suitable M10 cable lug; torque = 18 Nm

Cable gland "Multicore" version

The following cable outer diameters are compatible with the larger bushing: 16 - 27.8 - 36.2 - 44.6 - 53 - 61.4 mm

Cable gland "Singlecore" version

For the small bushing (M32 PG gland), earth cables of 10 - 25 mm can be fed through.

5 M40 bushings

Cable gland "AC Daisy Chain" version

10 M32 bushings

Connecting aluminium cables

Permitted cables For the pre-combined variant, the temperature resistance of the AC cables must

Aluminium cables can be connected to the mains connections.

NOTE!

When connecting aluminium cables:

Observe national and international guidelines regarding the connection of

▶

aluminium cables To protect the aluminium strands from oxidation, grease them with a suitable

▶

grease. Follow the instructions of the cable manufacturer

▶

be at least 90 C.

If cables are used that do not meet this temperature requirement, pass the protective hose (item number: 4,251,050) over the phases (L1 / L2 / L3) and neutral conductor (N). The earthing PE does not have to be protected with a protective hose. With the AC Daisy Chain option, all phases and neutral conductors must be protected with the protective hose. Thus, two sets of protective hoses are required for the AC Daisy Chain option.

Grid connections

Select sufficiently high cable cross sections depending on the power category and connection option!

Power category Connection option Cable cross section

Tauro 50-3

Tauro Eco 50-3

Singlecore/Multicore

Optional AC disconnector

Daisy Chain (without AC discon-

nector)

35–240 mm2 *

Grid connections

Maximum alternating current fuse protection

Select sufficiently high cable cross sections depending on the power category and connection option!

Power category Connection option Cable cross section

Singlecore/Multicore

Tauro Eco 99-3

Tauro Eco 100-3

* The cable cross-section of the neutral conductor can be reduced to 25 mm² if no local directives or standards require otherwise.

NOTE!

There is no general requirement to use a residual current device.

If a residual current device (RCD) is nevertheless used, a type B with a tripping current of at least 1000 mA must be used.

NOTE!

Optional AC disconnector

Daisy Chain (without AC discon-

nector)

70–240 mm2 *

The inverter can be used with an automatic circuit breaker of a maximum of 355 A.

Recommended output overcurrent protection [A] for 50 kW output power

Recommended output overcurrent protection [A] for 100 kW output power (example: Daisy Chaining)

Recommended output overcurrent protection [A] for 150 kW output power (example: Daisy Chaining)

Tauro Eco 99-3-P

Tauro 50-3-D / 50-3-P

Tauro Eco 50-3-D / 50-3-P

80 80 - - - -

160 160 160 160 160 160

250 250 250 250 250 250

Tauro Eco 99-3-D

Tauro Eco 100-3-P

Tauro Eco 100-3-D

Recommended output overcurrent protection [A] for 200 kW output power (example: Daisy Chaining)

355 355 355 355 355 355

Changing the clamping area for V-type terminal

The clamping range of the V-type terminal is 35 - 150 mm² when delivered. The clamping range can be changed to 185 - 240 mm² by a simple modification of the V-type terminal.

Additional PE introduction for earthing

An optional hole can be made on the right side of the housing at the bottom for an additional PE introduction.

CAUTION!

Danger from faulty or incorrect holes.

This may lead to injuries to the eyes and hands as a result of ﬂying debris and sharp edges, as well as damage to the inverter.

When drilling, wear suitable protective goggles.

▶

Only use a step drill when drilling.

▶

Ensure that nothing is damaged inside the device (for example connection

▶

block). Adapt the diameter of the hole to match the corresponding connection.

▶

Deburr the holes using a suitable tool.

▶

Remove the drilling residues from the inverter.

▶

Insert the screw connection in the hole and secure to the torque specified by the manufacturer.

The opening must be sealed in accordance with the protection class of the inverter!

Safety

WARNING!

Danger due to grid voltage and DC voltage from solar modules.

An electric shock can be fatal.

Ensure that both the AC side and the DC side of the inverter are de-ener-

▶

gised before carrying out any connection work. Only an authorised electrical engineer is permitted to connect this equip-

▶

ment to the public grid.

CAUTION!

Risk of damage to the inverter as the result of incorrectly tightened cable connections.

Incorrectly tightened cable connections can cause heat damage to the inverter that may result in a fire.

When connecting AC and DC cables, ensure that all the cables are tightened

▶

to the inverter terminals with the specified torque.

IMPORTANT! For PE connection, the requirements defined under "Safety rules" for a safe connection of the PE conductor must also be observed.

Opening the inverter

1 2

Switching off the AC disconnector option

Connecting the inverter to the public grid Singlecore

Ensure that the phases are connected in the right order: PE, N, L1, L2 and L3.

1 2

3 4

5 6

Connecting the inverter to the public grid - Multicore

When connecting, ensure that the phases are in the correct order: PE, N, L1, L2 and L3.

1 2

3 4

7 8

Secure to the torque specified by the manufacturer of the strain-relief device. The strain-relief device is not part of the scope of supply.

Secure to the torque specified by the manufacturer

Connecting the inverter to the public grid Daisy Chain

Ensure that the phases are connected in the right order: PE, N, L1, L2 and L3.

1 2

3 4

5 6

7 8

Connecting cables with a cable lug

9 10

Alternatively, a cable with a cable lug can be connected to the M12 threaded bolts on the grid connections in order to connect the cables to the V-type terminals.

Connecting the PV cable to the inverter

Safety

WARNING!

Danger due to grid voltage and DC voltage from solar modules that are exposed to light.

An electric shock can be fatal.

Prior to any connection work, disconnect the inverter on the AC side and the

▶

DC side. Only an authorised electrical technician is permitted to connect this equip-

▶

ment to the public grid.

WARNING!

Danger of electric shock due to incorrectly connected terminals / PV plug connectors.

An electric shock can be fatal.

When connecting version D ("direct string"), ensure that every pole of a

▶

string is fed across the same PV input, e.g.: '+ pole string 1' at input PV 1.1+ and '- pole string 1' at input PV 1.1-

WARNING!

Danger from DC voltage. Even when the DC disconnectors are switched off, the fuse boards (100-3-D / 99-3-D) / fuse board (50-3-D) and everything before the DC disconnectors are live.

An electric shock can be fatal.

Prior to any connection work, disconnect the inverter on the AC side and the

▶

DC side.

CAUTION!

Risk of damage to the inverter as the result of incorrectly tightened terminals.

Incorrectly tightened terminals can cause heat damage to the inverter that may result in a fire.

When connecting AC and DC cables, ensure that all the terminals are

▶

tightened to the specified torque.

CAUTION!

Risk of damage to the inverter as the result of incorrectly tightened terminals.

Incorrectly tightened terminals can cause heat damage to the inverter that may result in a fire.

When connecting AC and DC cables, ensure that all the terminals are

▶

tightened to the specified torque.

CAUTION!

General comments regarding PV modules

Risk of damage to the inverter due to PV modules that are not connected with the correct polarity.

PV modules that are not connected with the correct polarity can cause thermal damage to the inverter.

Measure the DC cables from the PV modules and connect them to the in-

▶

verter with the correct polarity.

CAUTION!

Risk of damage to the inverter by exceeding the maximum input current per string.

Exceeding the maximum input current per string can cause damage to the inverter.

Observe the maximum input current per string for the inverter according to

▶

the technical data. The maximum input current must not be exceeded even when using Y or T

▶

connectors.

To enable suitable PV modules to be chosen and to use the inverter as efficiently as possible, it is important to bear the following points in mind:

If insolation is constant and the temperature is falling, the open-circuit

voltage of the PV modules will increase. The open-circuit voltage must not exceed the maximum permissible system voltage. If the open-circuit voltage exceeds the specified values, the inverter will be destroyed and all warranty claims will be forfeited. The temperature coefficients on the data sheet of the PV modules must be

observed. Exact values for sizing the PV modules can be obtained using suitable calcu-

lation tools, such as the Fronius Solar.creator.

IMPORTANT!

Before connecting up the PV modules, check that the voltage for the PV modules specified by the manufacturer corresponds to the actual measured voltage.

IMPORTANT!

The PV modules connected to the inverter must comply with the IEC 61730 Class A standard.

IMPORTANT!

Solar module strings must not be earthed.

Permitted cables The temperature resistance of the DC cables must be at least 90 °C.

DC connections

Select sufficiently high cable cross sections depending on the device type!

Power category Device type Cable cross section

Tauro 50-3 / Eco 50-3 /

Eco 99-3 / Eco 100-3

pre-combined

direct

25 - 95 mm

2,5 - 10 mm² (see

data sheet for con-

nector)

DC fuse protection - pre-combined

CAUTION!

Risk of damage to the inverter as the result of incorrectly fused PV lines.

PV lines for the "pre-combined" model that are not fused can cause damage to the inverter.

PV lines must be fused in a combiner box before the inverter ("pre-com-

▶

bined" version).

Example of

PV 1.1 PV 1.2 PV 1.n

* SPD

PV 1

breaker

* DC

PV 2.1 PV 2.2 PV 2.n

* SPD

PV 2

breaker

* DC

PV 1 PV 2

... ...

Combiner Box

GAK

-F1.1.1

-F1.1.2

-F1.2.1

-F1.2.2

-F1.n.1

-F1.n.2

-F2.1.1

-F2.1.2

-F2.2.1

-F2.2.2

-F2.n.1

-F2.n.2

* Fuses

Fronius Tauro Eco 50-3-P / 99-3-P / 100-3-P combiner box

* DC fuse optional depending on national standard / DC breaker optional / DC SPD optional

Example Fronius

PV 1.1 PV 1.2 PV 1.n

* SPD

PV 1

breaker

* DC

PV 2.1 PV 2.2 PV 2.n

* SPD

PV 2

breaker

* DC

PV 3.1 PV 3.2 PV 3.n

* SPD

PV 3

breaker

* DC

PV 1 PV 2 PV 3

... ... ...

Combiner Box

GAK

-F1.1.1

-F1.1.2

-F1.2.1

-F1.2.2

-F1.n.1

-F1.n.2

-F2.1.1

-F2.1.2

-F2.2.1

-F2.2.2

-F2.n.1

-F2.n.2

-F3.1.1

-F3.1.2

-F3.2.1

-F3.2.2

-F3.n.1

-F3.n.2

* Fuses

Tauro 50-3-P combiner box

Distribution of the solar module strings for the direct version

* DC fuse optional depending on national standard / DC breaker optional / DC SPD optional

Divide the existing solar module strings evenly between the PV inputs (PV1 /

PV2 / PV3) of the inverter.

Start with the odd inputs first and only then fill up the even inputs to divide the power as evenly as possible and extend the service life of the fuses, e.g.: (1.1, 2.1,

3.1, 1.3, 2.3...)

Connecting PV cables - MC4 connector

Connect the PV cables from the solar modules to the MC4 connectors as la-

belled

Unused MC4 connectors on the inverter must be covered with the cover plates supplied with the inverter.

MC4 connector cover

To protect the MC4 connectors, a cover plate can be mounted on the inverter. The cover plate can be ordered as an optional accessory together with the ﬂoor racks.

Connecting PV cables - Precombined

Solar module strings that are combined in a DC combiner box, must, according to the applicable national regulations, be fused per string in the DC combiner box!

Before working in the connection area of the inverter, the DC

voltage must be switched off. This can also be done in the DC combiner box.

1 2

3 4

5 6

7 8

Connecting cables with a cable lug

Alternatively, a cable with a cable lug can be connected to the M12 threaded bolts on the grid connections in order to connect the cables to the V-type terminals.

Replacing the string fuses

CAUTION!

Danger due to faulty fuses.

This can lead to fires.

Only replace faulty fuses with new ones of the same rating.

▶

Do not replace faulty fuses with bolts.

▶

CAUTION!

Danger due to incorrectly dimensioned string fuses

Incorrectly dimensioned string fuses can cause damage to the inverter for these connected components. The following string fuses should be used for the -D (direct) version of the Fronius Tauro:

Max. 10 A per string → use of 15 A gPV fuse 1000 V possible (Fronius item

▶

number: 41,0007,0230 - fuse 15 1000 F PV 15A) Max. 14.5 A per string → use of 20 A gPV fuse 1000V required (Fronius item

▶

number: 41,0007,0233 - fuse-HL 20A 1KV fast) Max. 22 A per string → use of 30 A gPV fuse 1000V required (Fronius item

▶

number: 41,0007,0241 - fuse-HL 30A 1KV fast)

Replacing fuses: Fronius Tauro 50-3-D string 1.1 - 3.7 / Fronius Tauro 50-3-D (30A fuses) string 1.1 - 3.5 / Fronius Tauro Eco 50-3-D string 1.1 - 2.7 / Tauro Eco 50-3-D (30A fuses) string 1.1 - 2.5 / Fronius Tauro Eco 99 / 100-3-D string 1.1 - 2.7 / Fronius Tauro Eco 99 / 100-3-D (30A fuses) string 1.1 - 3.5

Check values! Only replace faulty fuses with new ones of the same rating.

Replacing fuses: Fronius Tauro Eco 99 / 100-3-D string 3.1 - 3.8

Check values! Only replace faulty fuses with new ones of the same rating.

1 2

3 4

Closing and

OFF

2-3x

switching on the inverter

1 2

3 4

WARNING!

Danger due to DC disconnectors that are not switched on properly

This can result in serious injury and damage to property.

Turn all existing DC disconnectors to the ON position before turning on the

▶

AC connection. The DC disconnectors may only ever be actuated simultaneously (one imme-

▶

diately after the other).

The WLAN access point can be opened with the optical sensor, see chapter

Button functions and LED status indicator on page 26

AC~ ON

Connecting the data communication cable

Modbus participants

The inputs M0 and M1 can be freely selected. A maximum of 4 Modbus participants can be connected to the Modbus terminal on inputs M0 and M1..

IMPORTANT!

If the function „Inverter control via Modbus“ is activated in the menu area

„Communication“ → „Modbus“, no Modbus participants are possible. It is not

possible to send and receive data at the same time.

Permitted cables for the data

Cables with the following design can be connected to the terminals of the inverter:

communication area

Copper: round, solid

Copper: round, fine-stranded

WSD connections with push-in terminal

Distance

max.

Stripping

length

Solid

Fine-stran-

ded

Fine-stran-

ded with fer-

rules with

collar

Fine-stran-

ded with fer-

rules

without col-

lar

Cable re-

commenda-

tion

100 m

10 mm

0.14 - 1.5

Modbus connections with push-in terminal

Distance

max.

300 m

Stripping

length

10 mm

Solid

0.14 - 1.5

Fine-stran-

IO connections with push-in terminal

Distance

max.

30 m

Stripping

length

10 mm

Solid

0.14 - 1.5

Fine-stran-

0.14 - 1.5

ded

0.14 - 1.5

ded

0.14 - 1.5

0.14 - 1 mm

Fine-stran-

ded with fer-

rules with

collar

0.14 - 1 mm

Fine-stran-

ded with fer-

rules with

collar

0.14 - 1 mm

0.14 - 1.5

Fine-stran-

ded with fer-

rules

without col-

0.14 - 1.5

Fine-stran-

ded with fer-

rules

without col-

0.14 - 1.5

lar

UTP

Cable re-

commenda-

tion

min. CAT 5

STP

Cable re-

commenda-

tion

Single con-

ductor pos-

sible

LAN connections

Fronius recommends at least CAT 5 STP (Shielded Twisted Pair) cables and a maximum distance of 100 m.

Multiple inverters in one net-

The network cabling of the inverters must be in a star arrangement. Observe the maximum lengths and requirements for the cable!

work

Routing data communication cables

To use the connection to Fronius Solar.web or Modbus TCP, each Tauro must be connected directly to the network via LAN.

IMPORTANT! If data communication cables are wired into the inverter, observe the following points:

Depending on the number and cross section of the wired data communica-

tion cables, remove the corresponding blanking plugs from the sealing insert and insert the data communication cables. Make sure that you insert the corresponding blanking plugs into any free

openings on the sealing insert.

Note! Should the blanking plugs be missing or improperly fitted, then protection class IP65 cannot be guaranteed.

Undo the strain-relief device cap nut and push out the sealing ring and the blanking plug from the inside of the device.

Open up the sealing ring at the location where the blanking plug is to be removed.

* Liberate the blanking plug by moving it sideways.

Guide the data cables first through the strain-relief device cap nut and then through the housing opening.

Insert the sealing ring between the cap nut and the housing opening. Press the data cables into the seal's cable guide. Then press in the seal until it reaches the underside of the strain-relief device.

IN (+)

IN (-)

OUT (+) OUT (-)

IN (+)

IN (-)

OUT (+)

OUT (-)

IN (+)

IN (-)

OUT (+)

OUT (-)

CAT 5/6/7

Connect the data cables to the data communication area using a movement loop, and fasten the cap nut with min.

2.5 to max. 4 Nm.

WSD (wired shutdown)

IMPORTANT!

The push-in WSD terminal in the inverter's connection area is delivered with a bypass ex works as standard. The bypass must be removed when installing a trigger device or a WSD chain.

The WSD switch of the first inverter with connected trigger device in the WSD chain must be in position 1 (primary device). The WSD switch of all other inverters should be in the 0 (secondary device) position.

Max. distance between two devices: 100 m Max. number of devices: 28

* Floating contact of the trigger device (e.g. central grid and system protection). If several ﬂoating contacts are used in a WSD chain, they must be connected in series.

Using for the first time

1 2

open access point

Setup your PV system in a few minutes.

START INSTALLATION

Log in with your Fronius credentials (email adress & password) in order to get the most out of the PV System. Installing a new product does not require a Login.

Imprint & Contact Terms & ConditionsData Privacy

Fronius Solar.start

Starting the inverter for the first time

Fronius system monitoring (Pilot) display

When starting the inverter for the first time, various setup settings must be configured.

If the setup process is cancelled before the process is complete, any data that has been input up to this point is lost and the start screen with the installation wizard is shown again. If the process is interrupted, such as in the event of a power outage, the data is saved. Commissioning may be continued from the point at which the process was interrupted once the power supply has been restored. If the setup was interrupted, the inverter feeds energy into the grid at maximum 500 W and the operating status LED ﬂashes yellow.

The country setup can only be set when starting the inverter for the first time. If the country setup needs to be changed at a later date, please contact your installer / Technical Support team.

To simplify the display, the vertical installation position of the Pilot pc board (LED display) is shown horizontally below.

Installation with the app

The "Fronius Solar.start" app is required for this installation method. Depending on the end device with which the installation will be carried out, download the app for the respective platform.

Start the installation in the app.

Select the product to which the connection should be established.

Open the access point by touching the sensor once → Communication LED: ﬂashes blue.

Follow and complete the installation wizard in the individual sections.

Add system components in Solar.web and start up the PV system.

The network wizard and the product setup can be carried out independently of

open access point

FRONIUS_PILOTxxx

Secured

Password:

12345678

192.168.250.181

169.254.0.180

open access point

each other. A network connection is required for the Solar.web installation wizard.

Installation using the web browser

WLAN:

Open the access point by touching the sensor once → Communication LED: ﬂashes blue.

Establish the connection to the inverter in the network settings (the inverter

is displayed with the name "FRONIUS_PILOT" and the serial number of the device).

Password: enter 12345678 and confirm.

IMPORTANT!

To enter the password on a Windows 10 operating system, the link "Connect using a security key instead" must first be activated to establish a connection with the password: 12345678.

In the browser address bar, enter and confirm the IP address

192.168.250.181. The installation wizard is opened.

Follow the installation wizard in the individual sections and complete the in-

stallation.

Add system components in Solar.web and start up the PV system.

The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.

Ethernet:

Establish a connection to the inverter (LAN1) with a network cable (CAT5

STP or higher).

Open the access point by touching the sensor once → Communication LED: ﬂashes blue.

In the browser address bar, enter and confirm IP address 169.254.0.180. The

installation wizard is opened.

Follow the installation wizard in the individual sections and complete the in-

stallation.

Add system components in Solar.web and start up the PV system.

The network wizard and the product setup can be carried out independently of each other. A network connection is required for the Solar.web installation wizard.

Switching off current supply and restarting the inverter

De-energising the inverter and switching it on again

Turn off the automatic circuit

1. breaker. Turn the DC disconnector to the

2. "Off" switch position.

To start up the inverter again, follow the steps listed above in reverse order.

Settings - user interface of the in-

verter

User settings

User login

Selecting the language

Open the user interface of the inverter in your browser.

In the "Login" menu, log in using your user name and password, or go to the

"User" menu and click on the "User login" button and then log in with your

user name and password.

IMPORTANT!

Depending on the user's authorization, settings can be executed in the individual menus.

In the “User” menu, click on the “Language” button and select the desired

language.

Device configuration

Components Select "Add component+" to add all available components to the system.

PV generator

Activate the particular PV generator and enter the connected PV power in the associated field.

Primary meter

To ensure smooth operation in conjunction with other energy producers, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and other producers must be connected to the public grid via the Fronius Smart Meter. This setting also affects how the inverter behaves overnight. If the function is deactivated, the inverter switches to standby mode as soon as there is no more PV power available. The message "Power low" is displayed. The inverter starts again as soon as sufficient PV power is available. After connecting the meter, the position must be configured. Several Fronius Smart Meters can be installed in the system. A different address needs to be set for each Smart Meter. The Watt value on the generator meter is the sum of all generator meters. The Watt value on the consumption meter is the value of all consumption meters.

Functions and IOs

Ohmpilot

All Ohmpilots available in the system are displayed. Select the desired Ohmpilot and add it to the system via “Add”.

Load management

Up to four pins can be selected here for load management. Other load management settings are available in the Load Management menu item. Default: Pin 1

OFF - Demand Response Mode (DRM)

The pins for control via DRM can be set here:

De-

fault

Mode Description Information

DRM0 Inverter disconnects itself

from the grid

REF GEN RG0

COM LOAD CL0

Open grid relay

DRM0 occurs if there is an interruption or short circuit on the REF GEN or COM LOAD leads. Or if the combinations DRM1 - DRM8 are invalid.

IMPORTANT!

If the Demand Response Mode (DRM) function is enabled and no DRM control is connected, the inverter switches to Standby mode.

"PSC editor AUS - Demand Response Modes (DRM)"

Demand Response Modes (DRM)

Inverter "Enforce Standby"

A value for the apparent power consumption and apparent power output can be entered here for the Australia country setup.

Here you can enter a value for the apparent power input and the apparent power output for the Australia country setup.

When the function is activated, the feed-in mode of the inverter is interrupted. This enables a powerless shutdown of the inverter and protects its components. When the inverter is restarted, the standby function is automatically deactivated.

"PV 1" and "PV 2"

Parameter Value range Description

"Mode" Off The MPP tracker is deactivated.

Auto The inverter uses the voltage at which the

max. possible power of the MPP tracker is possible.

Fix The MPP tracker uses the voltage defined

in the "UDC fix".

"UDC fix" 80 ‑ 530 V The inverter uses the fixed preset voltage

used at the MPP tracker.

"Dynamic Peak Manager"

"Ripple Control"

Ripple control signals are signals sent out by the energy company to switch controllable loads on and off. Depending on the installation situation, ripple control signals may be attenuated or amplified by the inverter. The settings below can be used to counteract this if necessary.

Parameter Value range Description

"Reduction of

Inﬂuence"

"Frequency of Ripple Control Signal"

Off The function is deactivated.

On The entire solar module string is checked

for optimisation potential and determines the best possible voltage for feed-in mode.

Off The function is deactivated.

On The function is activated.

100 ‑ 3000 Hz The frequency specified by the energy

company must be entered here.

"Grid Inductance"

0.00001 ‑ 0.00 5 H

The value measured at the feed-in point must be entered here.

"Measures against RCD/RCMU false trips"

(when using a 30 mA residual current circuit breaker)

Parameter Value range Description

"Inverter shutdown before 30 mA RCD trips"

"Iso Warning"

Parameter Value range Description

"Iso Warning" Off The isolation warning is deactivated.

"Iso Alternative Mode"

"Isolation Warning Threshold"

0 No measures to prevent false tripping.

1 The inverter switches off at 15 mA before

the residual current circuit breaker trips.

On The isolation warning is activated.

A warning is issued in the event of an isolation fault.

Accurate Isolation monitoring is performed with the

highest accuracy and the measured insulation resistance is displayed on the user interface of the inverter.

Fast Isolation monitoring is performed with

lower accuracy, which shortens the duration of the isolation measurement, and the isolation value is not displayed on the user interface of the inverter.

10 ‑ 10,000 kΩ

If this threshold is undershot, status code 1083 is displayed on the user interface of the inverter.

System

General General settings

In the "System name" input field, enter the name of the system (max. 30

characters).

"Synchronize time automatically" enabled → select "Area time zone" and

"Location time zone". The date and time are applied from the time zone entered.

"Synchronize time automatically" disabled → enter or select "Date", "Time",

"Area time zone" and "Location time zone".

Click on the "Save" button.

Update All available updates are made available on the product page and in the "Down-

load search" area under www.fronius.com .

Firmware update

Drag the firmware file into the "Drag&Drop file here" field or select it using

"Select file".

The update will start.

Setup wizard The guided setup wizard can be accessed here.

Restoring the factory settings

Event log Current events

All settings

All configuration data is reset with the exception of the country setup. Changes to the country setup may only be carried out by authorized personnel.

All settings with no network

All configuration data is reset with the exception of the country setup and the network settings. Changes to the country setup may only be carried out by authorized personnel.

All current events of the connected system components are shown here.

IMPORTANT!

Depending on the type of event, these must be confirmed via the "tick" button in order to be processed further.

Archived

All events of the connected system components that no longer exist are shown here.

Information This menu displays all system information and the current settings.

Save as PDF

Click on the "Save as PDF" button.

Individually select information with the "tick" next to the information or tick

to "Select all".

Enter the file name in the input field and click on the "Save" button.

The PDF is created and displayed.

Licence manager The licence file contains the performance data and the scope of functions of the

inverter. When replacing the inverter, power stage set or data communication area, the licence file must also be replaced.

Licensing - online (recommended):

An Internet connection and completed configuration on Solar.web is required.

Complete the installation work (see chapter Using for the first time on page

67).

Connect to the user interface of the inverter.

Enter the serial number and verification code (VCode) of the defective and

replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices and rating plate on the

device on page 14).

Click on the "Start online licensing" button.

Skip the Terms of use and Network settings menu items by clicking on

"Next".

The licence activation starts.

Licensing - ofﬂine:

There must be no Internet connection for this. When licensing ofﬂine with an established internet connection, the licence file is automatically uploaded to the inverter. Therefore, when uploading the licence file, the following error occurs: "The licence has already been installed and the wizard can be closed".

Complete the installation work (see chapter Using for the first time on page

67).

Connect to the user interface of the inverter.

Enter the serial number and verification code (VCode) of the defective and

replacement unit. The serial number and the VCode can be found on the rating plate of the inverter (see chapter Warning notices and rating plate on the

device on page 14).

Click on the "Start ofﬂine licensing" button.

Download the service file onto the end device by clicking on the "Download

service file" button.

Open the website licensemanager.solarweb.com and log in with your user

name and password.

Drag or upload the service file into the "Drop service file here or click to up-

load” field.

Download the newly generated licence file onto the end device using the

"Download licence file" button.

Go to the user interface of the inverter and drag the licence file into the

"Drag&Drop licence file here" field, or select it via "Select licence file".

The licence activation starts.

Support Activate support user

Click the "Activate support user" button.

The support user is activated.

IMPORTANT!

The support user only allows Fronius Technical Support to implement settings on the inverter via a secure connection. The button "End support user access" deactivates the access.

Create support info (for Fronius Support team)

Click on the "Create support info" button.

The sdp.cry file is downloaded automatically. To download manually, click on

the "Download Support-Info" button.

The sdp.cry file is saved in the downloads.

Enable remote maintenance

Click on the "Enable remote maintenance" button.

Remote maintenance access for the Fronius Support team is enabled.

IMPORTANT!

Remote maintenance access gives Fronius Technical Support exclusive access to the inverter via a secure connection. Diagnostic data is transmitted here that can be used for troubleshooting purposes. Only enable remote maintenance access following a request from the Fronius Support team.

Communication

Network Server addresses for data transfer

If a firewall is used for outgoing connections, the following protocols, server addresses and ports must be allowed for successful data transfer:

Tcp fronius-se-iot.azure-devices.net:8883

Tcp fronius-se-iot-telemetry.azure-devices.net:8883

Tcp fronius-se-iot-telemetry.azure-devices.net:443

Udp sera-gen24.fronius.com:1194 (213.33.117.120:1194)

Tcp froniusseiot.blob.core.windows.net:443

Tcp provisioning.solarweb.com:443

Tcp cure-se.fronius.com:443

When using FRITZ!Box products, the Internet access must be configured to be unlimited and unrestricted.

LAN:

Enter host name.

Select connection type "automatic" or "static".

For connection type "static" - enter IP address, subnet mask, DNS and gate-

way.

Click on the "Connect" button.

The connection is established.

WLAN:

Establishing a connection via WPS:

Click the "Enable" button.

Activate WPS on the WLAN router (see documentation provided with the

WLAN router).

The connection is established automatically.

Select and connect WLAN network:

The networks found are shown in the list. Clicking on the refresh button will carry out a second search of the available WLAN networks. The "Find network" input field can be used to further restrict the selection list.

Select network from the list.

Select connection type "automatic" or "static".

For connection type "automatic" - enter WLAN password and host name.

For connection type "static" - enter IP address, subnet mask, DNS and gate-

way.

Click on the "Connect" button.

The connection is established.

Access point:

The inverter serves as an access point. A PC or smart device connects directly with the inverter. It is not possible to connect to the internet. The "Network

name (SSID)" and "Network key (PSK)" can be assigned in this menu.

It is possible to operate a connection via WLAN and via access point simultaneously.

Modbus To use the Modbus TCP or the connection to Fronius Solar.web, each Tauro must

be connected directly to the network via LAN.

Modbus RTU interface 0 / 1

If one of the two Modbus RTU interfaces is set to Slave, the following input fields are available:

“Baud rate”

The baud rate inﬂuences the transmission speed between the individual components connected in the system. When selecting the baud rate, ensure that it is the same at both the sending and receiving end.

“Parity”

The parity bit can be used to check the parity. It detects transmission errors. A parity bit can safeguard a specific number of bits. The value (0 or 1) of the parity bit must be calculated by the sender and is checked by the recipient using the same calculation. The parity bit can be calculated for even and odd parity.

"SunSpec Model Type"

Depending on the SunSpec model, there are two different settings.

ﬂoat: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213.

int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203.

"Meter address"

"Inverter address"

Slave as Modbus TCP

If the function "Slave as Modbus TCP" is activated, the following input fields are available:

"Modbus port"

Number of the TCP port that is to be used for Modbus communication.

"SunSpec Model Type"

Depending on the SunSpec model, there are two different settings.

ﬂoat: SunSpec Inverter Model 111, 112, 113 or 211, 212, 213.

int + SF: SunSpec Inverter Model 101, 102, 103 or 201, 202, 203.

"Meter address"

Inverter control via Modbus

If this option is activated, the inverter is controlled via Modbus. Inverter control includes the following functions:

On/Off

Power reduction

Specification of a constant power factor (cos phi)

Specification of a constant reactive power value

Remote control

Remote control and profiles

The grid operator/energy supplier can inﬂuence the output power of the inverter by means of remote control. The prerequisite for this is for the inverter to have an active internet connection.

Parameter Value range Description

Remote control Off Remote control of the inverter is deactiv-

ated.

On Remote control of the inverter is activ-

ated.

Allow remote control for regulatory purposes (technician)

Allow remote control for virtual power plants (customer)

Deactivated/ Activated

The function Allow remote control for

regulatory purposes may be mandatory

for proper operation of the system. *)

If the Allow remote control for regulatory

purposes function is enabled (technician

access required), the Allow remote con-

trol for virtual power plants function is

automatically enabled and cannot be disabled. *)

Fronius Solar API

*) Cloud Control A virtual power plant is an interconnection of several power plant operators to form a network. This network can be controlled via the cloud over the internet. The inverter must have an active internet connection for this. System data is transmitted.

The Fronius Solar API is an Ethernet-based, open JSON interface. When enabled, IOT devices on the local network can access inverter information without authentication. For security reasons, the interface is deactivated at the factory and should not be activated if it is not required for a third-party application (e.g. EV charger, smart home solutions, etc.).

For monitoring, Fronius recommends using Fronius Solar.web instead, which provides secure access to inverter status and production information.

When performing a firmware update to version 1.14.x, the setting of the Fronius Solar API is adopted.

Safety and grid requirements

Country setup The "Country Setup" menu area is intended exclusively for installers/service

technicians from authorised specialist companies. The access code must be requested from the national/international Fronius point of contact using an application form.

CAUTION!

Risk due to unauthorised access.

Incorrectly set parameters can negatively inﬂuence the public grid and/or the inverter feeding energy into the grid, and lead to a loss of conformity with the standard.

The parameters may only be adjusted by installers/service technicians from

▶

authorised specialist companies. Do not give the access code to third parties and/or unauthorised persons.

▶

WARNING!

Danger due to unauthorised error analyses and repair work.

This can result in serious injury and damage to property.

Fault analyses and repair work on the photovoltaic system may only be car-

▶

ried out by installers/service technicians from authorized specialist companies in accordance with national standards and guidelines.

Feed-in limitation

The selected country setup for the respective country contains preset parameters according to the nationally applicable standards and requirements. Depending on local grid conditions and the specifications of the energy provider, adjustments to the selected country setup may be necessary.

CAUTION!

Risk due to incorrectly set parameters.

Incorrectly set parameters can negatively inﬂuence the public grid and/or cause faults and failures on the inverter, and lead to the loss of standard conformity.

The parameters may only be adjusted by installers/service technicians from

▶

authorised specialist companies. The parameters may only be adjusted if the energy provider permits or re-

▶

quires this. Only adjust the parameters taking into account the nationally applicable

▶

standards and/or directives and the specifications of the energy provider.

DNO or grid operators may stipulate feed-in limitations for an inverter (e.g. max. 70% of kWp or max. 5 kW). The feed-in limitation takes account of self-consumption before the power of an inverter is reduced:

There are two options for the feed-in limit:

Simple power reduction of an inverter using Fronius Smart Meter

Power reduction by external plant controller

The following formulas provide guidance as to which solution may apply: P

... Inverter power n

WRn

0% P

+ 100% P

WR1

+ 100% P

WR2

... ≤ Feed-in limit → Solution a)

WR3

0% P

+ 100% P

WR1

+ 100% P

WR2

... > Feed-in limit → Solution b)

WR3

Solution a) - Power reduction of a single inverter

The specifications can be met if the prescribed feed-in limit is achieved by reducing the power of a single inverter to ≥ 0%.

Example: there are 3 inverters in a system: 1x Fronius Tauro 100 kW, 2x Fronius Tauro 50 kW. The specified feed-in limit at the transfer point must not exceed 100 kW.

Solution: the Fronius Tauro can be regulated to 0% output power to meet the feed-in limit. The outputs of the other two inverters are not reduced and can feed in at any time without restriction.

If the power reduction of an inverter to 0% is not sufficient, solution b) must be applied.

Solution b) - Integration of a plant controller

This solution is used if the specifications of the grid operator cannot be met by limiting a single inverter, or if permanent access (e.g.: remote shutdown) is required. In this case, the integration of a PLANT CONTROLLER is recommended.

A detailed technical overview of this solution can be found at www.fronius.com under the keyword "feed-in management".

I/O power management

To benefit from the advantages of Fronius Solar.web, in addition to the monitoring function of the PLANT CONTROLLER SYSTEM a Fronius Smart Meter can also be installed. The integration of a Fronius Smart Meter ensures that the load and feed-in data of the PV system are visualised in Fronius Solar.web and are available for analysis.

General

In this menu item, settings relevant for a distribution network operator (DNO) are made. An effective power limitation in % and/or a power factor limitation can be set.

IMPORTANT!

The service password must be entered in order to adjust settings in this menu item. Settings in this menu area must only be made by trained and qualified personnel.

"Input pattern" (assignment of individual I/Os) 1 click = white (contact open) 2 clicks = blue (contact closed) 3 x clicks = grey (not used)

"Power factor (cos φ)" "ind" = inductive "cap" = capacitive

"DNO feedback" When the rule is enabled, output DNO feedback (pin 1 recommended) must be configured (e.g. for operating a signalling device).

For "Import" or "Export", the data format *.fpc is supported.

Control priorities

(2)

IO4

V+

IO0

IO2

IN6

IN8

IN10IN11

IN9

IN7

IO5

IO3

IO1

GND

100 %

60 %

30 %

0 %

(1)

V+

IN8

IN9

IN10

IN11

For setting the control priorities for the ripple control signal receiver, the feed-in limitation and control via Modbus.

1 = highest priority, 3 = lowest priority

Connection diagram - 4 relay

The ripple control signal receiver and the I/Os terminal of the inverter can be connected to one another in accordance with the connection diagram. If the distance between the inverter and the ripple control signal receiver exceeds 10 m, at least a CAT 5 cable is recommended and the shield must be connected at one end to the push-in terminal of the data communication area (SHIELD).

(1) Ripple control signal receiver with 4 relays, for effective power limiting. (2) I/Os of the data communication area.

Use the preconfigured file for 4-relay mode:

Download the file (.fpc) under 4-relay mode onto the end device.

Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-

port" button.

Click on the "Save" button.

The settings for 4-relay mode are stored.

I/O power man-

DNO Rules

V+/GND IO I

not used

DNO Feedback

Rule 1

0 2 4 6 8 10

1 3 5 7 9 11

100

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 2

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 3

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 4

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

EXPORTIMPORT

2 4

1 3 5

9 117

108

v+ v+

GND GND

I/O Power Management

None

IO control IO control IO control IO control

agement settings - 4 relays

Connection dia-

(2)

IO4

V+

IO0

IO2

IN6

IN8

IN10IN11

IN9

IN7

IO5

IO3

IO1

GND

60 %

30 %

0 %

(1)

V+

IN8

IN9

IN10

gram - 3 relay

(1) Ripple control signal receiver with 3 relays, for effective power limiting. (2) I/Os of the data communication area.

Use the preconfigured file for 3-relay mode:

Download the file (.fpc) under 3-relay mode onto the end device.

Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-

port" button.

Click on the "Save" button.

The settings for 3-relay mode are stored.

I/O power man-

DNO Rules

V+/GND IO I

not used

DNO Feedback

Rule 1

0 2 4 6 8 10

1 3 5 7 9 11

100

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 2

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 3

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 4

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

EXPORTIMPORT

2 4

1 3 5

9 117

108

v+ v+

GND GND

I/O Power Management

None

IO control IO control IO control

None

agement settings - 3 relays

Connection dia-

(2)

IO4

V+

IO0

IO2

IN6

IN8

IN10IN11

IN9

IN7

IO5

IO3

IO1

GND

Relais 1

Relais 2

(1)

V+

IN8

IN9

Active Power

100 %

60 %

30 %

0 %

Relais 1

Relais 2

gram - 2 relay

(1) Ripple control signal receiver with 2 relays, for effective power limiting. (2) I/Os of the data communication area.

Use the preconfigured file for 2-relay mode:

Download the file (.fpc) under 2-relay mode onto the end device.

Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-

port" button.

Click on the "Save" button.

The settings for 2-relay mode are stored.

I/O power man-

DNO Rules

V+/GND IO I

not used

DNO Feedback

Rule 1

0 2 4 6 8 10

1 3 5 7 9 11

100

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 2

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 3

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 4

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

EXPORTIMPORT

2 4

1 3 5

9 117

108

v+ v+

GND GND

I/O Power Management

None

IO control IO control

None

agement settings - 2 relays

Connection dia-

(2)

IO4

V+

IO0

IO2

IN6

IN8

IN10IN11

IN9

IN7

IO5

IO3

IO1

GND

100 %

(1)

V+

IN8

gram - 1 relay

(1) Ripple control signal receiver with 1 relay, for effective power limiting. (2) I/Os of the data communication area.

Use the preconfigured file for 1-relay mode:

Download the file (.fpc) under 1-relay mode onto the end device.

Upload the file (.fpc) in the "I/O Power Management" menu using the "Im-

port" button.

Click on the "Save" button.

The settings for 1-relay mode are stored.

I/O power man-

DNO Rules

V+/GND IO I

not used

DNO Feedback

Rule 1

0 2 4 6 8 10

1 3 5 7 9 11

100

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

Rule 2

0 2 4 6 8 10

1 3 5 7 9 11

DNO Feedback

Active Power

1 cap

Power Factor (cos φ)

EXPORTIMPORT

2 4

1 3 5

9 117

108

v+ v+

GND GND

I/O Power Management

None

IO control

None

agement settings - 1 relay

Appendix

Status codes and remedy

Status Codes

1006 – ArcDetected (operation LED: ﬂashes yellow)

Cause: Remedy:

1030 - WSD Open (operation LED: lights up red)

Cause:

Remedy:

OR: OR:

Danger due to work that has been carried out incorrectly.

This can result in serious injury and damage to property.

Installing and connecting a surge protective device (SPD) must only be car-

▶

ried out by service personnel trained by Fronius and only within the scope of the respective technical regulations. Follow the safety rules.

▶

An arc was detected at a specific point on the PV system. No action required. Feed-in mode is restarted again automatically

after 5 minutes.

A device connected in the WSD chain has interrupted the signal line (e.g. a surge protective device) or the bypass ex works has been removed and no trigger device has been installed.

If the SPD surge protective device is triggered, the inverter must be repaired by an authorised specialist.

Install the bypass ex works or a trigger device. Set the WSD (wired shutdown) switch to position 1 (WSD primary

device).

WARNING!

1173 - ArcContinuousFault (operation LED: lights up red)

Cause:

Remedy:

OR:

Danger from damaged components of the photovoltaic system

This can result in severe personal injury/damage to property.

Before the status "1173 - ArcContinuousFault" is confirmed, the entire

▶

photovoltaic system in question must be checked for possible damage. Have damaged components repaired by qualified personnel.

▶

An arc on the PV system was detected and the maximum number of automatic switch-ons within 24 hours was reached.

Press and hold the sensor on the inverter for 3 seconds (max. 6 seconds).

Confirm the status "1173 - ArcContinuousFault" in the "System” →

"Event Log" menu area on the user interface of the inverter.

Confirm the status "1173 - ArcContinuousFault" in the "Notifica-

tions" user menu on the user interface of the inverter.

CAUTION!

Technical data

Tauro 50-3-D / 50-3-P

Input data

Maximum input voltage

1000 V

(at 1000 W/m²/ -10 °C in an open circuit)

Start-up input voltage 200 V

MPP voltage range 400–870 V

Number MPP-controller 3

Maximum input current (I

DC max

PV1 / PV2 / PV3 per string (for D-version only)

Max. short circuit current 8) Total PV1 / PV2 / PV3 per string (for D-version only)

Maximum PV field power (P PV1 / PV2 / PV3

) Total

PV max

) Total

134 A

36 A / 36 A / 72 A

14.5 A / 22 A (30A fuses)

240 A

72 A / 72 A / 125 A

20 A / 30 A (30A fuses)

75 kWp

25 kWp / 25 kWp / 50

kWp

DC overvoltage category 2

Max. inverter backfeed current to the array D-version PV1 / PV2 / PV3 P-version PV1 / PV2 / PV3

72 / 72 / 125 A

0 / 0 / 0 A

Max. capacity of the PV generator against earth 10000 nF

Insulation resistance test limit value between PV generator and earth (on delivery)

Adjustable range of insulation resistance test between PV generator and earth

Limit value and tripping time of the sudden residual current monitoring (on delivery)

10–10000 kΩ

30 / 300 mA / ms 60 / 150 mA / ms

34 kΩ

90 / 40 mA / ms

Limit value and tripping time of the continuous re-

450 / 300 mA / ms

sidual current monitoring (on delivery)

Adjustable range of continuous residual current monitoring

Cyclic repetition of the insulation resistance test

30–1000 mA

24 h

(on delivery)

Adjustable range for the cyclic repetition of the insulation resistance test

Output data

Grid voltage range 180–270 V

Rated grid voltage

220 VAC | 230 V

Rated power 50 kW

Rated apparent power 50 kVA

Output data

Rated frequency

50 / 60 Hz

Maximum output current / Phase 76 A

Initial short-circuit current / Phase IK“ 76 A

Power factor (cos phi)

Grid connection 3~ NPE 380 / 220 V

3~ NPE 400 / 230 V

0–1 ind./cap.

Maximum output power 50 kW

Rated power 50 kW

Nominal output current / phase 75.8 A / 72.5 A

Total harmonic distortion < 3%

AC overvoltage category 3

Current (inrush)

26.6 A rms over 3.2 ms

228 A peak /

Max. output fault current per period 44.7 A / 16.24 ms

General data

Night-time power loss = standby consumption 15 W

European efficiency (400 / 600 / 800 / 870 VDC) 97.8 / 98.3 / 97.9 / 97.7%

Maximum efficiency 98.5%

Safety class 1

EMC device class B

Pollution degree 3

Permitted ambient temperature with built-in ‘AC disconnector’ option

- 40 °C – +65 °C

-30 °C – +65 °C

Permitted storage temperature - 40 °C – +70 °C

Relative humidity 0–100%

Sound pressure level (600 VDC) 68.4 dB(A) (ref. 20 µPa)

Protection class IP65

Dimensions (height x width x depth) 755 x 1109 x 346 mm

Weight 98 kg

Inverter topology Non-insulated trans-

formerless

Protection devices

DC disconnector Integrated

Cooling principle Controlled forced-air

ventilation

RCMU

DC isolation measurement

Integrated

Overload performance Operating point shift

power limitation

Protection devices

Active anti-islanding method Frequency conversion

method

Tauro Eco 50-3D / 50-3-P

Input data

Maximum input voltage

1000 V

(at 1000 W/m²/ -10 °C in an open circuit)

Start-up input voltage 650 V

MPP voltage range 580–930 V

Number MPP-controller 1

Maximum input current (I

DC max

PV1 / PV2 per string (for D-version only)

Max. short circuit current 8) Total PV1 / PV2 per string (for D-version only)

Maximum PV field power (P PV1 / PV2

) Total

PV max

) Total

87.5 A

75 A / 75 A

14.5 A / 22 A (30A fuses)

178 A

125 A / 125 A

20 A / 30 A (30A fuses)

75 kWp

60 kWp / 60 kWp

DC overvoltage category 2

Max. inverter backfeed current to the array

125 A

Max. capacity of the PV generator against earth 10000 nF

Insulation resistance test limit value between PV generator and earth (on delivery)

34 kΩ

Adjustable range of insulation resistance test between PV generator and earth

Limit value and tripping time of the sudden residual current monitoring (on delivery)

10–10000 kΩ

30 / 300 mA / ms 60 / 150 mA / ms

90 / 40 mA / ms

Limit value and tripping time of the continuous re-

450 / 300 mA / ms

sidual current monitoring (on delivery)

Adjustable range of continuous residual current monitoring

Cyclic repetition of the insulation resistance test

30–1000 mA

24 h

(on delivery)

Adjustable range for the cyclic repetition of the insulation resistance test

Output data

Grid voltage range 180–270 V

Rated grid voltage

220 VAC | 230 V

Rated power 50 kW

Rated apparent power 50 kVA

Output data

Rated frequency

50 / 60 Hz

Maximum output current / Phase 76 A

Initial short-circuit current / Phase IK“ 76 A

Power factor (cos phi)

Grid connection 3~ NPE 380 / 220 V

3~ NPE 400 / 230 V

0–1 ind./cap.

Maximum output power 50 kW

Rated power 50 kW

Nominal output current / phase 75.8 A / 72.5 A

Total harmonic distortion < 3%

AC overvoltage category 3

Current (inrush)

209 A peak /

30.5 A rms over 2.1 ms

Max. output fault current per period 37.2 A / 19.4 ms

General data

Night-time power loss = standby consumption 15 W

European efficiency (580 / 800 / 930 VDC) 98.2 / 97.7 / 97.3%

Maximum efficiency 98.5%

Safety class 1

EMC device class B

Pollution degree 3

Permitted ambient temperature with built-in ‘AC disconnector’ option

- 40 °C – +65 °C

-30 °C – +65 °C

Permitted storage temperature - 40 °C – +70 °C

Relative humidity 0–100%

Sound pressure level (580 VDC) 68.5 dB(A) (ref. 20 µPa)

Protection class IP65

Dimensions (height x width x depth) 755 x 1109 x 346 mm

Weight 80 kg

Inverter topology Non-insulated trans-

formerless

Protection devices

DC disconnector Integrated

Cooling principle Controlled forced-air

ventilation

RCMU

DC isolation measurement

Integrated

Overload performance Operating point shift

power limitation

Protection devices

Active anti-islanding method Frequency conversion

method

AFCI (for D-version with 15/20 A fuses only) Optional

AFPE (AFCI) classification (acc. IEC63027) (for D-version with 15/20 A fuses only)

= F-I-AFPE-1-7/7-2

Full coverage

Integrated

AFPE

1 monitored string per in-

put port

7/7 input ports per chan-

nel (AFD1: 7, AFD2: 7)

2 monitored channels

Tauro Eco 99-3D / 99-3-P

Input data

Maximum input voltage

1000 V

(at 1000 W/m²/ -10 °C in an open circuit)

Start-up input voltage 650 V

MPP voltage range 580–930 V

Number MPP-controller 1

Maximum input current (I

DC max

P-version PV1 / PV2 D-version PV1 / PV2 / PV3 per string (for D-version only)

) Total

175 A

100 A / 100 A

75 A / 75 A / 75 A

14.5 A / 22 A (30A fuses)

Max. short circuit current 8) P-version total D-version total PV1 / PV2 / (PV3 for D-version only) per string (for D-version only)

Maximum PV field power (P

PV max

) Total

P-version PV1 / PV2 D-version PV1 / PV2 / PV3

125 A / 125 A / 125 A

20 A / 30 A (30A fuses)

79 kWp / 79 kWp

57 kWp / 57 kWp / 57

250 A 355 A

150 kWp

kWp

DC overvoltage category 2

Max. inverter backfeed current to the array P-version total D-version total

125 A

250 A

100

Max. capacity of the PV generator against earth 19998 nF

Insulation resistance test limit value between PV generator and earth (on delivery)

Adjustable range of insulation resistance test between PV generator and earth

Limit value and tripping time of the sudden residual current monitoring (on delivery)

10–10000 kΩ

30 / 300 mA / ms 60 / 150 mA / ms

34 kΩ

90 / 40 mA / ms

Limit value and tripping time of the continuous re-

900 / 300 mA / ms

sidual current monitoring (on delivery)

Fronius Fronius Tauro, Fronius Tauro Eco Operating Instruction [EN]

Specifications and Main Features

Frequently Asked Questions

User Manual