Fronius Verto 15.0 - 36.0 kW Operating instructions

Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.

1. Safety rules

Please pay special attention when one of the symbols from the "Safety rules" chapter appears in these instructions.

1. Safety rules

The conventions regarding how information is presented in the document, which are set out below, have been defined in order to increase the readability and comprehensibility of the document.

Application notes

IMPORTANT! Indicates application notes and other useful information. It does not indicate a harmful or dangerous situation.

Software

Software functions and elements of a graphical user interface (e.g., buttons, menu items) are highlighted in the text with this mark up.

Example: Click Save.

Instructions for action

1. Safety rules

• Serious or fatal injury to the operator or third parties
• Damage to the device and other material assets belonging to the operating company

• Be suitably qualified
• Have knowledge of and experience in dealing with electrical installations
• Have fully read and precisely followed these operating instructions

In addition to the operating instructions, all applicable local regulations regarding accident prevention and environmental protection must also be followed.

• Must be kept in a legible state
• Must not be damaged
• Must not be removed
• Must not be covered, have anything stuck on them, or painted over

• Serious or fatal injury to the operator or third parties
• Damage to the device and other material assets belonging to the operating company

Any safety devices that are not fully functional must be repaired by an authorized specialist before the device is switched on.

Never bypass or disable safety devices.

For the location of the safety and danger notices on the device, refer to the chapter headed "Information on the device" in the operating instructions for your device.

Any equipment malfunctions which impair safety must be remedied before the device is turned on.

1. Safety rules

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.

1. Safety rules

The information contained in these operating instructions is intended only for qualified personnel. 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 must be secured, undamaged, insulated, and adequately dimensioned. Loose connections, damaged or under-dimensioned cables must be repaired immediately by an authorized specialist company.

Maintenance and repair work must only be carried out by an authorized specialist company.

It is impossible to guarantee that third-party parts are designed and manufactured to meet the demands made on them, or that they satisfy safety requirements. Only use original spare parts.

Do not carry out any alterations, installations, or modifications to the device without first obtaining the manufacturer's permission.

Replace any damaged components or have them replaced immediately.

1. Safety rules

The sound pressure level of the inverter is indicated in the Technical data.

The cooling of the device takes place via an electronic temperature control system at the lowest possible noise level and depends on the power used, ambient temperature, and the soiling level 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 power quality, the surrounding walls, and the properties of the room in general.

1. Safety rules

In certain cases, even though a device complies with the standard limit values for emissions, it may affect the application area for which it was designed (e.g., when there is equipment that is susceptible to interference at the same location or if the site where the device is installed is close to either radio or television receivers). If this is the case, the operator is obliged to take action to rectify the situation.

1. Safety rules

• backing up any changes made to the factory settings
• saving and storing personal settings

1. Safety rules

Copyright of these operating instructions remains with the manufacturer.

Text and illustrations were accurate at the time of printing, subject to change.
We are grateful for suggestions for improvement and information on any discrepancies in the operating instructions.

1. Safety rules

Grounding a point in the device, system, or installation serves as a protective measure against electric shock in the event of a fault. When installing an inverter from safety class 1 (see Technical data), a ground conductor connection is required.

When connecting the ground conductor, ensure that it is secured to prevent unintentional disconnection. All of the points listed in the chapter headed Connecting the inverter to the public grid (AC side) on page (→) must be observed. When using strain-relief devices, it is important to ensure that the ground conductor is loaded last in the event of a failure. The respective national standards and regulations and requirements for minimum cross-section must be observed when connecting the ground conductor.

The inverter transforms the direct current generated by the solar modules into alternating current. This alternating current is fed into the public grid and synchronized with the mains voltage in use.

The inverter is intended for use in grid-connected photovoltaic systems.

The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (for example, grid switch-off, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid.
The grid is monitored by monitoring the voltage, frequency, and islanding conditions.

After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the PV modules.
Depending on the operating point, this power is used in the home or fed into the grid.

When its temperature gets too high, the inverter automatically reduces the output power or switches off completely, in order to protect itself.
Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).

1. General information

The inverter transforms the direct current generated by the solar modules into alternating current. This alternating current is fed into the public grid and synchronized with the mains voltage in use.

The inverter is intended for use in grid-connected photovoltaic systems.

The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (for example, grid switch-off, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid.
The grid is monitored by monitoring the voltage, frequency, and islanding conditions.

After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the PV modules.
Depending on the operating point, this power is used in the home or fed into the grid.

When its temperature gets too high, the inverter automatically reduces the output power or switches off completely, in order to protect itself.
Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).

1. General information
2. Fronius Verto

The inverter transforms the direct current generated by the solar modules into alternating current. This alternating current is fed into the public grid and synchronized with the mains voltage in use.

The inverter is intended for use in grid-connected photovoltaic systems.

The inverter automatically monitors the public grid. Whenever conditions in the electric grid are inconsistent with standard conditions (for example, grid switch-off, interruption), the inverter will immediately stop producing power and interrupt the supply of power into the grid.
The grid is monitored by monitoring the voltage, frequency, and islanding conditions.

After installation and commissioning, the inverter's operation is fully automatic; the inverter draws the maximum possible power from the PV modules.
Depending on the operating point, this power is used in the home or fed into the grid.

When its temperature gets too high, the inverter automatically reduces the output power or switches off completely, in order to protect itself.
Reasons for the temperature being too high include a high ambient temperature or insufficient heat dissipation (for example, inadequate heat dissipation when installed in switch cabinets).

1. General information
2. Fronius Verto

(1)	Mounting bracket (mounted on inverter on delivery)
(2)	Inverter
(3)	Housing cover
(4)	Quick Start Guide

1. General information
2. Fronius Verto

Ambient air is drawn in by the fan on the top and bottom and blown out at the device sides. The even heat dissipation allows several inverters to be installed next to each other.

1. General information
2. Fronius Verto

System owners and installers can easily monitor and analyze the PV system using Fronius Solar.web or Fronius Solar.web Premium. With the appropriate configuration, the inverter transmits data such as power, yield, load, and energy balance to Fronius Solar.web. More detailed information can be found at Solar.web - Monitoring & analysis.

Configuration is carried out using the Setup wizard; see the chapter headed Installation with the app on page (→) or Installation with the browser on page (→).

• Internet connection (download: min. 512 kbit/s, upload: min. 256 kbit/s)*.
• User account at solarweb.com.
• Completed configuration using the Setup wizard.

1. General information
2. Fronius Verto

The inverter can be found via the Multicast DNS (mDNS) protocol. We recommend searching for the inverter using the assigned host name.

• NominalPower
• Systemname
• DeviceSerialNumber
• SoftwareBundleVersion

1. General information

Technical data, warning notices, and safety symbols are located on and in the inverter. They must not be removed or painted over. They warn against incorrect operation, which may result in serious injury and property damage.

Symbols on the rating plate:
	CE label – confirms compliance with applicable EU directives and regulations.
	WEEE marking – 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.

Safety symbols:
	General warning sign Observe the danger shown on the additional sign(s).
	Observe instructions Do not use the functions described here until you have fully read and understood the following documents: These operating instructions, especially the safety rules. Read and understand all operating instructions for the system components of the photovoltaic system, especially the safety rules.
	Warning of hot surface Take care not to come into contact with hot surfaces.
	Warning of electrical voltage Take care not to come into contact with electrical voltage.
	Allow the capacitors of the inverter to discharge (2 minutes).

Warning notice text:

WARNING!
An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energized and disconnected.

1. General information
2. Protection of people and equipment

Technical data, warning notices, and safety symbols are located on and in the inverter. They must not be removed or painted over. They warn against incorrect operation, which may result in serious injury and property damage.

Symbols on the rating plate:
	CE label – confirms compliance with applicable EU directives and regulations.
	WEEE marking – 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.

Safety symbols:
	General warning sign Observe the danger shown on the additional sign(s).
	Observe instructions Do not use the functions described here until you have fully read and understood the following documents: These operating instructions, especially the safety rules. Read and understand all operating instructions for the system components of the photovoltaic system, especially the safety rules.
	Warning of hot surface Take care not to come into contact with hot surfaces.
	Warning of electrical voltage Take care not to come into contact with electrical voltage.
	Allow the capacitors of the inverter to discharge (2 minutes).

Warning notice text:

WARNING!
An electric shock can be fatal. Before opening the device, ensure that the input and output sides are de-energized and disconnected.

1. General information
2. Protection of people and equipment

The inverter offers the option to use the integrated AC relays as section 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 chapter WSD (wired shutdown) on page (→).

1. General information
2. Protection of people and equipment

The wired shutdown (WSD) interrupts the inverter's grid power feed if the trigger device (switch, e.g., Emergency Stop or fire alarm contact) has been activated.

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

For installation, see Installing the WSD (wired shutdown) on page (→).

1. General information
2. Protection of people and equipment

The inverter is equipped with an RCMU (RCMU = residual current monitoring unit) according to IEC 62109-2 and IEC63112.
It monitors residual currents from the PV module up to the AC output and disconnects the inverter from the grid when an improper residual current is detected.

1. General information
2. Protection of people and equipment

In the case of photovoltaic systems with ungrounded PV modules, the inverter checks the resistance between the positive or negative pole of the photovoltaic system and the ground potential before starting grid power feed operation. In the event of a short circuit between the DC+ or DC- cable and ground (e.g., due to inadequately insulated DC cables or defective PV modules), feeding into the public grid is prevented.

1. General information
2. Protection of people and equipment

An AFCI (Arc Fault Circuit Interrupter) protects against arc faults and, in the narrower sense, is a protection device in the event of contact errors. The AFCI evaluates faults that occur in the current and voltage flow on the DC side using an electronic circuit and shuts down the circuit if a contact error is detected. This prevents overheating at poor contact points and, ideally, possible fires.

IMPORTANT!
Fronius will not bear any costs that may arise due to a detected electric arc and its consequences. Fronius accepts no liability for damage which may occur despite the integrated Arc Fault Circuit Interrupter/interruption (e.g., due to a parallel arc).

IMPORTANT!
Active PV module electronics (e.g., power optimizers) can impair the function of the Arc Fault Circuit Interrupter. Fronius cannot guarantee the correct function of the Arc Fault Circuit Interrupter in combination with active PV module electronics.

Reconnection behavior
Grid power feed operation is interrupted for at least 5 minutes after an arc has been detected. Depending on the configuration, grid power feed operation is then automatically resumed. If several arcs are detected within a period of 24 hours, grid power feed operation can also be permanently interrupted until a manual reconnection has been performed.

1. General information
2. Protection of people and equipment

If one of the following safety devices is triggered, the inverter switches to a safe state:

• WSD
• Insulation monitoring
• RCMU
• AFCI

In the safe state, the inverter no longer feeds energy in and is disconnected from the grid by the AC relay opening.

1. General information

The inverter is designed to convert direct current from PV modules into alternating current and feed this power into the public grid.

• Carefully reading and following all the instructions as well as complying with the safety and danger notices in the operating instructions
• Installation in accordance with the chapter headed "Installation", from page (→)

Follow all grid operator regulations regarding energy fed into the grid and connection methods.

1. General information
2. Utilization in accordance with "intended purpose"

The inverter is designed to convert direct current from PV modules into alternating current and feed this power into the public grid.

• Carefully reading and following all the instructions as well as complying with the safety and danger notices in the operating instructions
• Installation in accordance with the chapter headed "Installation", from page (→)

Follow all grid operator regulations regarding energy fed into the grid and connection methods.

1. General information
2. Utilization in accordance with "intended purpose"

• Any use that is not the intended use or goes beyond the intended use.
• Alternations to the inverter are not expressly recommended by Fronius.
• Installation of components that are not expressly recommended or sold by Fronius.

The manufacturer shall not be liable for any resulting damage. In addition, no warranty claims will be entertained.

1. General information
2. Utilization in accordance with "intended purpose"

The inverter is designed exclusively to be connected and used with PV modules.
Use with other DC generators (e.g., wind generators) is not permitted.

When configuring the photovoltaic system, make sure that all photovoltaic system components are operating exclusively within their permitted operating range.

All measures recommended by the PV module manufacturer for maintaining the PV module properties must be followed.

1. General information

		The surge protection 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 protection device is triggered, the color of the indicator changes from green to red (mechanical display). A tripped SPD must be replaced immediately by an authorized specialist company with a functioning SPD in order to maintain the full protective function of the unit.
		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 2-pole signal cable of the surge protection device is interrupted or damaged.

1. General information
2. Surge protection device (SPD)

		The surge protection 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 protection device is triggered, the color of the indicator changes from green to red (mechanical display). A tripped SPD must be replaced immediately by an authorized specialist company with a functioning SPD in order to maintain the full protective function of the unit.
		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 2-pole signal cable of the surge protection device is interrupted or damaged.

1. General information

(1)	Push-in WSD (wired shutdown) terminal
(2)	Push-in terminals in the data communication area (Modbus)
(3)	Push-in terminals in the data communication area (digital inputs and outputs)
(4)	5-pin AC terminal    =
(5)	Cable bushing/cable gland AC
(6)	AC SPD (surge protection device)
(7)	Optional cable bushing
(8)	Grounding clamping bolts
(9)	Cable bushing/cable gland in the data communication area
(10)	DIN rail (mounting option for third-party components)
(11)	DC connections MC4
(12)	DC SPD (surge protection device)

1. General information
2. Operating controls and connections

(1)	Push-in WSD (wired shutdown) terminal
(2)	Push-in terminals in the data communication area (Modbus)
(3)	Push-in terminals in the data communication area (digital inputs and outputs)
(4)	5-pin AC terminal    =
(5)	Cable bushing/cable gland AC
(6)	AC SPD (surge protection device)
(7)	Optional cable bushing
(8)	Grounding clamping bolts
(9)	Cable bushing/cable gland in the data communication area
(10)	DIN rail (mounting option for third-party components)
(11)	DC connections MC4
(12)	DC SPD (surge protection device)

1. General information
2. Operating controls and connections

1. General information
2. Operating controls and connections

The ground electrode bolt    allows additional components to be grounded, such as:

• AC cable
• Module mounting system
• Ground rod

If further grounding options are required, suitable terminals can be fitted to the DIN rail.

1. General information
2. Operating controls and connections

In the 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 +70 °C.

1. General information
2. Operating controls and connections

The DC disconnector has 2 switch settings: On / Off.

IMPORTANT!
When the switch is in the 'Off' position, a conventional padlock can be used to secure the inverter against being switched on. The national guidelines must be complied with in this respect.

Padlock minimum requirement:

• Shackle diameter min. 6 mm
• Housing size min. 40 mm

1. General information
2. Operating controls and connections

1. General information
2. Operating controls and connections

	The operating status LED displays the status of the inverter. In case of faults, follow the individual steps in the Fronius Solar.web live app.
	The optical sensor is actuated by touching it with a finger.
	The communications LED displays the connection status. To establish a connection, follow the individual steps in the Fronius Solar.web live app.

Sensor functions
		1x    = WLAN access point (AP) is opened.    Flashes blue
		2x    = WLAN protected setup (WPS) is activated.    Flashes green
		3 seconds    (max. 6 seconds) = The service message disappears.    Flashes white (quickly)

LED status indicator
		The inverter is operating correctly.    Lights up green
		The inverter is starting.    Flashes green
		The inverter is on standby, is not operating (e.g., no energy fed into the grid at night), or is not configured.    Lights up yellow
		The inverter displays a non-critical status.    Flashes yellow
		The inverter displays a critical status and no energy is fed into the grid.    Lights up red
		The network connection is being established via WPS. 2x  = WPS search mode.    Flashes green
		The network connection is being established via WLAN AP. 1x  = WLAN AP search mode (active for 30 minutes).    Flashes blue
		The network connection is not configured.    Lights up yellow
		A network error is displayed, the inverter is operating correctly.    Lights up red
		The inverter is performing an update.    /    Flash blue
		There is a service message.    Lights up white

1. General information
2. Operating controls and connections

The V+/GND pin provides the possibility of feeding in a voltage in the range of 12.5 to 24 V (+ max. 20%) using an external power supply unit. Outputs IO 0 - 5 can then be operated using the external voltage that has been fed in. A maximum of 1 A may be drawn per output, whereby a total of max. 3 A is permitted. The fuse protection must take place externally.

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

• Spirit level
• Pencil
• TX20 screwdriver
• Hex socket torque wrench 5 mm
• Torque wrench M32, M50
• Wire stripper for cables and wires
• Multimeter for measuring voltage
• Smartphone, tablet, or PC for setting up the inverter
• Drill driver

1. Installation

• Spirit level
• Pencil
• TX20 screwdriver
• Hex socket torque wrench 5 mm
• Torque wrench M32, M50
• Wire stripper for cables and wires
• Multimeter for measuring voltage
• Smartphone, tablet, or PC for setting up the inverter
• Drill driver

1. Installation
2. General

• Spirit level
• Pencil
• TX20 screwdriver
• Hex socket torque wrench 5 mm
• Torque wrench M32, M50
• Wire stripper for cables and wires
• Multimeter for measuring voltage
• Smartphone, tablet, or PC for setting up the inverter
• Drill driver

1. Installation
2. General

A quick-fastener system (3) is used to mount the connection area cover and front cover. The system is opened and closed with a half-rotation (180°) of the captive screw (1) into the quick-fastener spring (2).

The system is independent of torque.

1. Installation
2. General

All components installed 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.

1. Installation

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

		Only install on a solid, non-flammable surface.
		When installing the inverter in a switch cabinet or similar closed environment, ensure adequate heat dissipation by forced-air ventilation.
When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between all sides of the inverter and the ventilation and building openings.
The following substrates are allowed: Wall installation: Corrugated sheet metal (mounting rails), brick, concrete, or other non-flammable surfaces sufficiently capable of bearing loads Mast or beam: Mounting rails, behind the PV modules directly on the PV mounting system Flat roof (if this is for a film roof, make sure that the films comply with the fire protection requirements and are not highly flammable. Ensure compliance with the national provisions.) Covered parking lot roof (no overhead installation)

		The inverter is suitable for indoor installation.
		The inverter is suitable for outdoor installation. Due to its IP 66 protection class, the inverter is not susceptible to water spray from any direction.
		Do not expose the inverter to direct sunlight in order to keep inverter heating as low as possible.
		The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof.
		The inverter must not be installed or operated at more than 4 000 m above sea level. The voltage UDCmax must not exceed the following values: between 0 and 3000 m: 1000 V between 3001 and 3500 m: 959 V between 3501 and 4000 m: 909 V over 4001: not allowed
		Do not install the inverter: Where it may be exposed to ammonia, corrosive gases, acids or salts (e.g., fertilizer storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)
		During certain operating phases the inverter may produce a slight noise. For this reason it should not be installed in an occupied living area.
		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.
		The inverter is designed to be dust-proof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. In this case, cleaning is required regularly. We therefore recommend not installing the inverter in areas and environments with high dust accumulation.
		Do not install the inverter in: Greenhouses Storage or processing areas for fruit, vegetables, or viticulture products Areas used in the preparation of grain, green fodder, or animal feeds

1. Installation
2. Installation location and position

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

		Only install on a solid, non-flammable surface.
		When installing the inverter in a switch cabinet or similar closed environment, ensure adequate heat dissipation by forced-air ventilation.
When installing the inverter on the outer walls of cattle sheds, it is important to maintain a minimum clearance of 2 m between all sides of the inverter and the ventilation and building openings.
The following substrates are allowed: Wall installation: Corrugated sheet metal (mounting rails), brick, concrete, or other non-flammable surfaces sufficiently capable of bearing loads Mast or beam: Mounting rails, behind the PV modules directly on the PV mounting system Flat roof (if this is for a film roof, make sure that the films comply with the fire protection requirements and are not highly flammable. Ensure compliance with the national provisions.) Covered parking lot roof (no overhead installation)

		The inverter is suitable for indoor installation.
		The inverter is suitable for outdoor installation. Due to its IP 66 protection class, the inverter is not susceptible to water spray from any direction.
		Do not expose the inverter to direct sunlight in order to keep inverter heating as low as possible.
		The inverter should be installed in a protected location, e.g., near the PV modules or under an overhanging roof.
		The inverter must not be installed or operated at more than 4 000 m above sea level. The voltage UDCmax must not exceed the following values: between 0 and 3000 m: 1000 V between 3001 and 3500 m: 959 V between 3501 and 4000 m: 909 V over 4001: not allowed
		Do not install the inverter: Where it may be exposed to ammonia, corrosive gases, acids or salts (e.g., fertilizer storage areas, vent openings for livestock stables, chemical plants, tanneries, etc.)
		During certain operating phases the inverter may produce a slight noise. For this reason it should not be installed in an occupied living area.
		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.
		The inverter is designed to be dust-proof (IP 66). In areas of high dust accumulation, dust deposits may collect on the cooling surfaces, and thus impair the thermal performance. In this case, cleaning is required regularly. We therefore recommend not installing the inverter in areas and environments with high dust accumulation.
		Do not install the inverter in: Greenhouses Storage or processing areas for fruit, vegetables, or viticulture products Areas used in the preparation of grain, green fodder, or animal feeds

1. Installation
2. Installation location and position

		The inverter is suitable for vertical installation on a vertical wall or column. Do not install the inverter: At an angle In the horizontal position With the connection sockets facing upwards On a base
		The inverter is suitable for a horizontal installation position or for installation on a sloping surface. Do not install the inverter: On a sloping surface with the connection sockets facing upwards Overhanging with the connection sockets facing down On the ceiling

1. Installation

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 right type of fixing.

1. Installation
2. Installing the mounting bracket and attaching the inverter

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 right type of fixing.

1. Installation
2. Installing the mounting bracket and attaching the inverter

The mounting bracket (illustration) can also be used as a guide.

The pre-drilled holes on the mounting bracket are intended for screws with a thread diameter of 6-8 mm (0.24-0.32 inches).

Unevenness on the installation surface (for example, coarse-grained plaster) is largely counterbalanced by the mounting bracket.

The mounting bracket must be fixed to the four outer tabs (marked in green). The four inner tabs (marked in orange) can be used in addition if required.

1. Installation
2. Installing the mounting bracket and attaching the inverter

1. Installation
2. Installing the mounting bracket and attaching the inverter

IMPORTANT!
When installing the mounting bracket, make sure that it is installed with the arrow pointing upwards.

1

1. Installation
2. Installing the mounting bracket and attaching the inverter

There are integrated grips on the side of the inverter which facilitate lifting/attaching.

1

Clip the inverter into the mounting bracket from above. The connections must point downwards.

Push the lower part of the inverter into the snap-in tabs of the mounting bracket until the inverter audibly clicks into place on both sides.

Check that the inverter is correctly positioned on both sides.

1. Installation

Aluminum cables can also be connected to the AC connections.

1. Installation
2. Requirements for connecting the inverter

Aluminum cables can also be connected to the AC connections.

1. Installation
2. Requirements for connecting the inverter

Solid	Fine-stranded	Fine-stranded with ferrule and collar	Fine-stranded with ferrule without collar	Sectoral

1. Installation
2. Requirements for connecting the inverter

Round copper or aluminum conductors with a cross-section of 4 to 35 mm² can be connected to the terminals of the inverter as described below.

The torques according to the following table must be observed:

Cross-section	Copper		Aluminum
35 mm2	10 Nm	10 Nm	14 Nm	14 Nm
25 mm2	8 Nm	8 Nm	12 Nm	10 Nm
16 mm2			10 Nm
10 mm2	6 Nm	6 Nm
6 mm2
4 mm2

SPD type 2: The grounding must be established with a 6 mm² copper or 16 mm² aluminum cable as a minimum requirement.

SPD type 1+2: The grounding must be established with a 16 mm² copper or aluminum cable as a minimum requirement.

1. Installation
2. Requirements for connecting the inverter

Round copper conductors with a cross section of 4-10 mm² can be connected to the MC4 plugs of the inverter.

Select a sufficiently large cable cross-section based on the actual device output and the installation situation!

1. Installation
2. Requirements for connecting the inverter

• Copper: round, solid
• Copper: round, fine-stranded

IMPORTANT!
If several single conductors are connected to an input of the push-in terminals, connect the single conductors with a corresponding ferrule.

WSD connections with push-in terminal
Distance	Stripping length					Cable recommendation
100 m 109 yd	10 mm 0.39 inch	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1 mm2 AWG 26 - 18	0.14 - 1.5 mm2 AWG 26 - 16	min. CAT 5 UTP (unshielded twisted pair)

Modbus connections with push-in terminal
Distance	Stripping length					Cable recommendation
300 m 328 yd	10 mm  0.39 inch	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1 mm2 AWG 26 - 18	0.14 - 1.5 mm2 AWG 26 - 16	min. CAT 5 STP (shielded twisted pair)

IO connections with push-in terminal
Distance	Stripping length					Cable recommendation
30 m 32 yd	10 mm  0.39 inch	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1.5 mm2 AWG 26 - 16	0.14 - 1 mm2 AWG 26 - 18	0.14 - 1.5 mm2 AWG 26 - 16	Single conductors possible

1. Installation
2. Requirements for connecting the inverter

For a standard M32 cable gland with a large reducer (green):
Cable diameter from 12-14 mm

For a standard M32 cable gland with a small reducer (red):
Cable diameter from 17-19 mm

For a standard M32 cable gland without a reducer:
Cable diameter from 20.5-24.5 mm

For an M50 cable gland:
Cable diameter from ≤35 mm

1. Installation
2. Requirements for connecting the inverter

NOTE!

A residual current circuit breaker for the AC connecting cable may be required depending on national regulations, the grid operator, and other conditions.

A type A residual current circuit breaker is generally sufficient in this case. Nevertheless, false alarms can be triggered for the type A residual current circuit breaker in individual cases and depending on local conditions. For this reason, Fronius recommends using a residual current circuit breaker suitable for frequency inverters with a release current of at least 100 mA, taking into account national provisions.

1. Installation

1. Installation
2. Connecting the inverter to the public grid (AC side)

1. Installation
2. Connecting the inverter to the public grid (AC side)

It is not possible to operate the inverter in ungrounded grids, e.g., IT grids (insulated grids without ground conductor).

1

Turn off the automatic circuit breaker.
Make sure that the DC disconnector is set to the "Off" switch setting.

2

Loosen the 6 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
Remove the connection area cover from the device.

3

Strip the insulation of the single conductors by 16 mm.
Select the cable cross-section in accordance with the instructions in Permitted cables for the electrical grid connection from page (→).

IMPORTANT!
Only one conductor may be connected to each pin. With a twin ferrule, two conductors can be connected to one pin.

4

For more information about the cable gland, see chapter Cable diameter of the AC cable on page (→).

5

NOTE!

Observe torques - see Permitted cables for the electrical grid connection on page (→).

IMPORTANT!
The ground conductor must be dimensioned longer and laid with a movement loop so that it is last loaded in the event of a failure of the cable gland.

L1	Phase conductor
L2	Phase conductor
L3	Phase conductor
N	Neutral conductor
PE	Ground conductor

6

Fasten the union nut of the cable gland with a torque of 4 Nm.

1. Installation
2. Connecting the inverter to the public grid (AC side)

It is not possible to operate the inverter in ungrounded grids, e.g., IT grids (insulated grids without ground conductor).

1

Turn off the automatic circuit breaker.
Make sure that the DC disconnector is set to the "Off" switch setting.

2

Loosen the 6 screws of the connection area cover by rotating them 180° to the left using a screwdriver (TX20).
Remove the connection area cover from the device.

3

Strip the insulation of the single conductors by 16 mm.
Select the cable cross-section in accordance with the instructions in Permitted cables for the electrical grid connection from page (→).

IMPORTANT!
Only one conductor may be connected to each pin. With a twin ferrule, two conductors can be connected to one pin.

4

For more information about the cable gland, see chapter Cable diameter of the AC cable on page (→).

NOTE!

The PEN conductor must have ends that are permanently marked blue, according to the national regulations.

NOTE!

The ground conductor must be dimensioned longer and laid with a movement loop so that it is last loaded in the event of a failure of the cable gland.

NOTE!

Observe torques - see Permitted cables for the electrical grid connection on page (→).

5

PEN conductor version: Terminal on DIN rail

6

PEN conductor version: Earthing bolt

7

Fasten the union nut of the cable gland with a torque of 4 Nm.

1. Installation
2. Connecting the inverter to the public grid (AC side)

1. Installation

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 calculation 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.

1. Installation
2. Connecting solar module strings to the inverter

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 calculation 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.

1. Installation
2. Connecting solar module strings to the inverter

1. Installation
2. Connecting solar module strings to the inverter

Several independent PV inputs are available. These inputs can be connected to a number of different modules.

When starting for the first time, set up the PV Generator in accordance with the respective configuration (can also be carried out at a later date in the System configuration menu field under menu item Components).

1. Installation
2. Connecting solar module strings to the inverter

1

2

Use a suitable measuring instrument to check the voltage and polarity of the DC cabling.

CAUTION!

Danger due to polarity reversal at the terminals.

This may result in severe damage to the inverter.

Use a suitable measuring instrument to check the polarity of the DC cabling.

Use a suitable measuring instrument to check the voltage (max. 1 000 V_DC)

CAUTION!

Risk of damage due to incompatible plug connectors.

Incompatible plug connectors can cause thermal damage and may cause a fire.

Only use the original plug connectors (MC4) from Stäubli (formerly Multi-Contact).

3

Connect PV cables from the solar modules to the MC4 plugs according to the label

Unused MC4 plugs on the inverter must be closed by the cover caps supplied with the inverter.

1. Installation

• Depending on the number and cross section of the wired data communication 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.

IMPORTANT!
Should the blanking plugs be missing or improperly fitted, then safety class IP66 cannot be guaranteed.

1

Undo the cable gland union nut and push out the sealing ring and the blanking plug from the inside of the device.

2

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

* Liberate the blanking plug by moving it sideways.

3

Guide the data cables first through the cable gland union nut and then through the housing opening.

4

Insert the sealing ring between the union 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 cable gland.

5

Secure the data cable to the protective cover of the DC SPD surge protection device with a cable tie. Tighten the union nut for the cable gland to a torque of min. 2.5 to max. 4 Nm.

1. Installation
2. Connecting the data communication cables

• Depending on the number and cross section of the wired data communication 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.

IMPORTANT!
Should the blanking plugs be missing or improperly fitted, then safety class IP66 cannot be guaranteed.

1

Undo the cable gland union nut and push out the sealing ring and the blanking plug from the inside of the device.

2

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

* Liberate the blanking plug by moving it sideways.

3

Guide the data cables first through the cable gland union nut and then through the housing opening.

4

Insert the sealing ring between the union 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 cable gland.

5

Secure the data cable to the protective cover of the DC SPD surge protection device with a cable tie. Tighten the union nut for the cable gland to a torque of min. 2.5 to max. 4 Nm.

1. Installation
2. Connecting the data communication cables

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 (master). The WSD switch of all other inverters should be in position 0 (slave).

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, these must be connected in series.

1. Installation

1

Place the cover on the connection area. Tighten six screws by rotating them 180° to the right using a screwdriver (TX20).

2

Clip the housing cover into the inverter from above.
Press on the lower part of the housing cover and tighten the two screws by rotating them 180° to the right using a screwdriver (TX20).

3

Turn the DC disconnector to the "on" switch setting. Turn on the automatic circuit breaker.

IMPORTANT! Open the WLAN access point with the optical sensor; refer to the chapter headed Button functions and LED status indicator on page (→)

1. Installation
2. Closing and commissioning the inverter

1

Place the cover on the connection area. Tighten six screws by rotating them 180° to the right using a screwdriver (TX20).

2

Clip the housing cover into the inverter from above.
Press on the lower part of the housing cover and tighten the two screws by rotating them 180° to the right using a screwdriver (TX20).

3

Turn the DC disconnector to the "on" switch setting. Turn on the automatic circuit breaker.

IMPORTANT! Open the WLAN access point with the optical sensor; refer to the chapter headed Button functions and LED status indicator on page (→)

1. Installation
2. Closing and commissioning the inverter

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

If the setup is canceled before completion, the input data is not saved and the start screen with the installation wizard is shown once again. The data is saved in the event of an interruption, e.g., a power failure. Commissioning is continued at the point at which the interruption occurred after the power supply is 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, contact your installer/technical support.

1. Installation
2. Closing and commissioning the inverter

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.

1Download and install the Fronius Solar.start app.

2Open the access point by touching the sensor    → Communication LED flashes blue.

3Open the Solar.start app and follow the installation wizard. Scan the QR code on the rating plate with a smartphone or tablet to connect to the inverter.

4Add 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.

1. Installation
2. Closing and commissioning the inverter

WLAN:

1Open the access point by touching the sensor   

✓Communications LED flashes blue.

2Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).

3Enter the password from the rating plate and confirm.
IMPORTANT!
To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.

4Enter the IP address 192.168.250.181 in the address bar of the browser and confirm. The installation wizard opens.

5Follow the installation wizard and complete the installation in the individual areas.

6Add the system components in Fronius Solar.web and commission the PV system.

The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.

Ethernet:

1Establish a connection to the inverter (LAN1) using a network cable (min. CAT5 STP).

2Open the access point by touching the sensor once   

✓Communications LED flashes blue.

3Enter the IP address 169.254.0.180 in the address bar of the browser and confirm. The installation wizard opens.

4Follow the installation wizard and complete the installation in the individual areas.

5Add the system components in Fronius Solar.web and commission the PV system.

The network wizard and product setup can be performed independently. A network connection is required for the Fronius Solar.web installation wizard.

1. Installation

1. Installation
2. De-energizing the inverter and switching it back on

1. Installation
2. De-energizing the inverter and switching it back on

1

1. Turn off the automatic circuit breaker.
2. Turn the DC disconnector to the "off" switch setting.

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

IMPORTANT!
Wait for the capacitors of the inverter to discharge!

IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.

1. Settings – User interface of the inverter

IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.

1. Settings – User interface of the inverter
2. User settings

IMPORTANT!
Depending on the authorization of the user, settings can be made in the individual menu areas.

1. Settings – User interface of the inverter
2. User settings

1. Settings – User interface of the inverter

All available components of the system can be added via Add component+.

PV Generator
Activate the MPP tracker and enter the connected PV output in the relevant field.

Primary meter
For problem-free operation with further energy generators, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and further producers must be connected to the public grid via the Fronius Smart Meter.
This setting also has an effect on the behavior of the inverter during the night. If the function is deactivated, the inverter switches to standby mode as soon as there is no more PV power available. The inverter starts again as soon as sufficient PV power is available.
If the function is activated, the inverter remains permanently connected to the grid in order to draw energy from other producers at any time.
After connecting the meter, the position must be configured. An individual Modbus address must be set for each Smart Meter.
The Watt value at the generator meter is the sum of all the generator meters. The Watt value on the consumption meter is the value of all secondary meters.

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

1. Settings – User interface of the inverter
2. Device configuration

All available components of the system can be added via Add component+.

PV Generator
Activate the MPP tracker and enter the connected PV output in the relevant field.

Primary meter
For problem-free operation with further energy generators, it is important to install the Fronius Smart Meter at the feed-in point. The inverter and further producers must be connected to the public grid via the Fronius Smart Meter.
This setting also has an effect on the behavior of the inverter during the night. If the function is deactivated, the inverter switches to standby mode as soon as there is no more PV power available. The inverter starts again as soon as sufficient PV power is available.
If the function is activated, the inverter remains permanently connected to the grid in order to draw energy from other producers at any time.
After connecting the meter, the position must be configured. An individual Modbus address must be set for each Smart Meter.
The Watt value at the generator meter is the sum of all the generator meters. The Watt value on the consumption meter is the value of all secondary meters.

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

1. Settings – User interface of the inverter
2. Device configuration

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

Australia - Demand Response Modes (DRM)
The pins for control via DRM can be set here:

IMPORTANT!
If the Demand Response Mode (DRM) function is activated and no DRM control is connected, the inverter switches into standby mode.

1. Settings – User interface of the inverter
2. Device configuration

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

1. Settings – User interface of the inverter
2. Device configuration

Force standby
When this function is activated, the supply of energy from the inverter into the grid is interrupted. This makes it possible to shut down the inverter without power and protect its components. The standby function is automatically deactivated when the inverter is restarted.

PV 1 to PV 4

Ripple control signal
Ripple control signals are signals that are sent by the energy company in order to switch controllable loads on and off. Depending on the installation situation, ripple control signals can be dampened or amplified by the inverter. This can be counteracted if necessary by applying the following settings.

Measures to prevent FI/RCMU false alarms
(when using a 30 mA residual current circuit breaker)

Iso Warning

1. Settings – User interface of the inverter

1. Settings – User interface of the inverter
2. System

1. Settings – User interface of the inverter
2. System

All available updates are provided on the product page and in the "Fronius Download Search" area at www.fronius.com .

1. Settings – User interface of the inverter
2. System

The guided setup wizard can be accessed here.

1. Settings – User interface of the inverter
2. System

All settings
Resets all configuration data, apart from the country setup. Changes to the country setup may only be made by authorized personnel.

All settings without network
Resets all configuration data, apart from the country setup and the network settings. Changes to the country setup may only be made by authorized personnel.

1. Settings – User interface of the inverter
2. System

Current messagesAll current events of the linked system components are displayed here.

IMPORTANT!
Depending on the type of event, this must be confirmed via the "tick" button so that it can be further processed.

History
All events of the linked system components that are no longer present are displayed here.

1. Settings – User interface of the inverter
2. System

All the information regarding the system and the current settings is displayed and provided for download in this menu area.

1. Settings – User interface of the inverter
2. System

The license file contains the performance data and the scope of functions of the inverter. When replacing the inverter or data communication area, the license file must also be replaced.

The license activation starts.

The license activation starts.

1. Settings – User interface of the inverter
2. System

IMPORTANT!
The support user exclusively enables Fronius Technical Support to configure settings on the inverter via a secure connection. Access is deactivated by clicking the Terminate Support User Session button.

IMPORTANT!
The remote access exclusively enables Fronius Technical Support to access the inverter via a secure connection. In this case, diagnostics data are transmitted, which are used for troubleshooting. The remote access can be activated only upon request by Fronius Support.

1. Settings – User interface of the inverter

Server addresses for data transfer
If a firewall is used for outgoing connections, the below protocols, server addresses, and ports must be allowed for successful data transfer, see:
https://www.fronius.com/~/downloads/Solar%20Energy/firmware/SE_FW_Changelog_Firewall_Rules_EN.pdf

When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).

LAN:

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

WLAN:

Establishing a connection via WPS:

☐

The access point of the inverter must be active. This is opened by touching the sensor    > Communications LED flashes blue

1.

Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).

2.

Enter the password from the rating plate and confirm.
IMPORTANT!
To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.

3.

Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.

4.

In the Communication > Network > WLAN > WPS menu area, click the Activate button.

5.

Activate WPS on the WLAN router (see WLAN router documentation).

6.

Click on the Start button. The connection is established automatically.

7.

Log in to the user interface of the inverter.

8.

Check the network details and connection to Fronius Solar.web.

1Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).

2Enter the password from the rating plate and confirm.
IMPORTANT!
To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.

3Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.

4In the Communication > Network > WLAN > WPS menu area, click the Activate button.

5Activate WPS on the WLAN router (see WLAN router documentation).

6Click on the Start button. The connection is established automatically.

7Log in to the user interface of the inverter.

8Check the network details and connection to Fronius Solar.web.

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

Selecting and connecting to a WLAN network:
The networks found are displayed in the list. Clicking on the Refresh button will    perform a new search for available WLAN networks. The selection list can be limited further via the Search network input field.

1Select network from the list.

2Select the connection type: Automatic or Static.

3For the Automatic connection type, enter the WLAN password and host name.

4For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.

5Click the Connect button.

✓The connection is established.

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

Access point:

The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
It is possible to operate a connection via WLAN and via the access point at the same time.

1. Settings – User interface of the inverter
2. Communication

Server addresses for data transfer
If a firewall is used for outgoing connections, the below protocols, server addresses, and ports must be allowed for successful data transfer, see:
https://www.fronius.com/~/downloads/Solar%20Energy/firmware/SE_FW_Changelog_Firewall_Rules_EN.pdf

When using FRITZ!Box products, Internet access must be configured without any restrictions or limitations. The DHCP Lease Time (validity) must not be set to 0 (=infinite).

LAN:

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

WLAN:

Establishing a connection via WPS:

☐

The access point of the inverter must be active. This is opened by touching the sensor    > Communications LED flashes blue

1.

Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).

2.

Enter the password from the rating plate and confirm.
IMPORTANT!
To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.

3.

Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.

4.

In the Communication > Network > WLAN > WPS menu area, click the Activate button.

5.

Activate WPS on the WLAN router (see WLAN router documentation).

6.

Click on the Start button. The connection is established automatically.

7.

Log in to the user interface of the inverter.

8.

Check the network details and connection to Fronius Solar.web.

1Establish the connection to the inverter in the network settings (the inverter is displayed with the name "FRONIUS_" and the serial number of the device).

2Enter the password from the rating plate and confirm.
IMPORTANT!
To enter the password in Windows 10, first select the Connect using a security key instead link to be able to establish the connection with the password.

3Enter the IP address 192.168.250.181 in the address bar of the browser and confirm.

4In the Communication > Network > WLAN > WPS menu area, click the Activate button.

5Activate WPS on the WLAN router (see WLAN router documentation).

6Click on the Start button. The connection is established automatically.

7Log in to the user interface of the inverter.

8Check the network details and connection to Fronius Solar.web.

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

Selecting and connecting to a WLAN network:
The networks found are displayed in the list. Clicking on the Refresh button will    perform a new search for available WLAN networks. The selection list can be limited further via the Search network input field.

1Select network from the list.

2Select the connection type: Automatic or Static.

3For the Automatic connection type, enter the WLAN password and host name.

4For the Static connection type, enter the IP address, subnet mask, DNS, and gateway.

5Click the Connect button.

✓The connection is established.

After connecting, the status of the connection should be checked (refer to the chapter headed Internet services on page (→)).

Access point:

The inverter serves as the access point. A PC or smart device connects directly to the inverter. Connecting to the Internet is not possible. In this menu area, Network Name (SSID) and Network Key (PSK) can be assigned.
It is possible to operate a connection via WLAN and via the access point at the same time.

1. Settings – User interface of the inverter
2. Communication

The inverter communicates with system components (e.g., Fronius Smart Meter) and other inverters via Modbus. The primary device (Modbus Client) sends control commands to the secondary device (Modbus Server). The control commands are executed by the secondary device.

Modbus 0 (M0) RTU / Modbus 1 (M1) RTU
If one of the two Modbus RTU interfaces is set to Modbus Server, the following input fields are available:

Control secondary inverter via Modbus TCP
This setting is necessary to enable inverter control via Modbus. If the Control secondary inverter via Modbus TCP function is activated, the following input fields are available:

1. Settings – User interface of the inverter
2. Communication

The utility/energy supplier can influence the output power of the inverter with Cloud control. This requires the inverter to have an active Internet connection.

* Cloud control
A virtual power plant is an interconnection of multiple generators. This virtual power plant can be controlled by means of the cloud control via the Internet. An active inverter Internet connection is a prerequisite for this. System data are transferred.

1. Settings – User interface of the inverter
2. Communication

The Solar API is an IP-based, open JSON interface. If enabled, IOT devices in the local network may access inverter information without authentication. For security reasons, the interface is disabled by default and must be enabled if it is required for a third-party application (e.g., EV charger, smart home solutions, etc.) or the Fronius Wattpilot.

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

In the event of a firmware update to version 1.14.x, the Solar API setting is applied. In systems with a version below 1.14.x, the Solar API is activated; with higher versions, it is deactivated but can be switched on and off via the menu.

Activating the Fronius Solar API
On the user interface of the inverter in the Communication > Solar API menu area, activate the function Activate communication via Solar API.

1. Settings – User interface of the inverter
2. Communication

In this menu, you can agree to the technically necessary data processing or reject it.

In addition, the transfer of analysis data and remote access via Solar.web can be enabled or disabled.

1. Settings – User interface of the inverter
2. Communication

Information regarding connections and the current connection status is displayed in this menu. If there are problems with the connection, a short description of the error is displayed.

1. Settings – User interface of the inverter

The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.

The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.

1. Settings – User interface of the inverter
2. Safety and grid requirements

The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. To apply for the access code required for this menu area, see chapter Requesting inverter codes in Solar.SOS.

The selected country setup for the country in question contains preset parameters in accordance with nationally applicable standards and requirements. Changes may need to be made to the selected country setup depending on local grid conditions and the specifications of the utility.

1. Settings – User interface of the inverter
2. Safety and grid requirements

The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal.

Requesting inverter codes in Fronius Solar.SOS:

1.

Open solar-sos.fronius.com in the browser

2.

Log in with your Fronius account

3.

At the top right, click on the drop-down menu   

4.

Select the Show inverter codes menu item

5.

A contract page appears on which the request for the access code to change the grid parameters for Fronius inverters is located

6.

Accept the terms and conditions of use by checking Yes, I have read and agree to the terms of use and click Confirm & Save

7.

After that, the codes can be retrieved in the drop-down menu at the top right under Show inverter codes

1Open solar-sos.fronius.com in the browser

2Log in with your Fronius account

3At the top right, click on the drop-down menu   

4Select the Show inverter codes menu item

✓A contract page appears on which the request for the access code to change the grid parameters for Fronius inverters is located

5Accept the terms and conditions of use by checking Yes, I have read and agree to the terms of use and click Confirm & Save

6After that, the codes can be retrieved in the drop-down menu at the top right under Show inverter codes

1. Settings – User interface of the inverter
2. Safety and grid requirements

Energy companies or utilities can prescribe feed-in limits for an inverter (e.g., max. 70% of the kWp or max. 5 kW).
The feed-in limit takes account of self-consumption in the household before the power of an inverter is reduced:

• An individual limit can be set.
• A Fronius Smart Meter can be connected to the Modbus push-in terminal of the data communication area, at the terminals M0/M1- and M0/M1+ for Modbus data.
• A Fronius Smart Meter IP can also be connected via the TCP connection type.

The inverter ensures that the PV power that cannot be fed into the public grid is used by the Fronius Ohmpilot so that it does not go to waste. The feed-in limit only becomes active if the power of feeding in is higher than the set power reduction.

Power Control deactivated
The inverter converts all available PV energy and feeds it into the public grid.

Power Control activated
Feeding in limited with the following selection options:

• Total Power Limit
  The entire photovoltaic system is limited to a fixed feed-in limit. A value must be set for the permissible total power of feeding in.
• Limit per phase – asymmetric generation
  The optimum per phase is determined. The inverter regulates the individual phases in such a way that the sum of the phases does not exceed the set value. This setting is only necessary if required by national standards and regulations. The value of the permissible power of feeding in per phase must be set.
  This function is not supported in systems with a Fronius Ohmpilot and/or dynamic power limitation of several inverters.
• Limit per phase – weakest phase
  Each individual phase is measured. If the permissible feed-in limit is exceeded on one phase, the total power of the inverter is reduced until the value on the affected phase is permissible again. This setting is only necessary if required by national standards and regulations. A value must be set for the permissible total feed-in power for each phase.

Total DC power of the Entire System
Input field for the total DC power of the entire system in Wp.
This value is used if the Maximum grid feed-in power is specified in %.

Export Limit Control (Soft Limit)
If this value is exceeded, the inverter readjusts down to the set value.

Export Limit Protection (Hard Limit Trip)
If this value is exceeded, the inverter switches off within max. 5 seconds. This value must be higher than the value set for Export Limit Control (Soft Limit).

Maximum grid feed-in power
Input field for the Maximum grid feed-in power in W or % (setting range: -10 to 100%).
If there is no meter in the system or if a meter has failed, the inverter limits the power of feeding in to the set value.

Activate the function Reduce inverter power to 0% for control if meter connection has been lost for control in the event of a fail-safe.

The use of WLAN for communication between the Smart Meter and the inverter is not recommended for the fail-safe function. Even short-term disconnections can cause the inverter to shut down. This problem is particularly common with weak WLAN signal strengths, a slow or overloaded WLAN connection, and automatic channel selection of the router.

Limit multiple inverters (only Soft Limit)
Control of the dynamic feed-in limit for several inverters, for details on configuration, see chapter Dynamic feed-in limit with multiple inverterson page (→).

1. Settings – User interface of the inverter
2. Safety and grid requirements

"Total Power Limit"
(feed-in limit 0 kW)

Explanation
No power (0 kW) may be fed into the public grid at the grid feed-in point. The load requirement in the home network (12 kW) is supplied by the power generated by the inverter.

"Limit per phase – asymmetric generation"
(feed-in limit 0 kW per phase) – asymmetric

Explanation
The load requirement in the home network per phase is determined and supplied.

"Limit per phase – asymmetric generation"
(feed-in limit 1 kW per phase) – asymmetric

Explanation
The load requirement in the home network per phase is determined and supplied. In addition, the excess production (1 kW per phase) is fed into the public grid in accordance with the maximum permitted feed-in limit.

"Limit per phase – weakest phase"
(feed-in limit 0 kW per phase) – symmetrical

Explanation
The weakest phase in the load requirement in the home network is determined (phase 1 = 2 kW). The result of the weakest phase (2 kW) is applied to all phases. Phase 1 (2 kW) can be supplied. Phase 2 (4 kW) and phase 3 (6 kW) cannot be supplied, power from the public grid is required (phase 2 = 2 kW, phase 3 = 4 kW).

"Limit per phase – weakest phase"
(feed-in limit 1 kW per phase) – symmetrical

Explanation
The weakest phase in the load requirement in the home network is determined (phase 1 = 2 kW) and the max. permitted feed-in limit (1 kW) is added. The result of the weakest phase (2 kW) is applied to all phases. Phase 1 (2 kW) can be supplied. Phase 2 (4 kW) and phase 3 (6 kW) cannot be supplied, power from the public grid is required (phase 2 = 1 kW, phase 3 = 3 kW).

1. Settings – User interface of the inverter
2. Safety and grid requirements

IMPORTANT!
To view and change settings in this menu item, select the user Technician, and enter and confirm the password for the user Technician. Settings in this menu area may only be made by trained and qualified personnel.

The inverter can be used as a primary device to control dynamic feed-in limits for additional Fronius inverters (secondary devices) so that feed-in limits prescribed by energy companies or utilities can be centrally managed. This control refers to the Soft Limit feed-in limit (see Feed-in limit. The following requirements must be met:

• Power Control and the Limit multiple inverters (only Soft Limit) function are activated and configured on the user interface of the primary device.
• Primary device and secondary device(s) are physically connected to the same network router via LAN.
• Inverter Control via Modbus is activated and configured for all secondary devices.
• The Fronius Smart Meter is configured as a primary meter and connected to the primary device.

IMPORTANT!
Only one primary meter is required for the primary device.

IMPORTANT!
If a GEN24 inverter with a battery is connected, it must be used as the primary device for dynamic feed-in limits.

Example connection diagram for dynamic feed-in limit with multiple inverters

The dynamic feed-in limit is available for the following device combinations:

Primary meter
The Fronius Smart Meter acts as the only primary meter and is connected directly to the primary device. The Smart Meter measures the total output power of all inverters into the grid and passes this information to the primary device via Modbus.

Primary device
The export limitation is configured on the user interface of the inverter:

The primary device automatically scans the network for available secondary devices. A list of the inverters found is displayed. Click the refresh button    to perform the search again.

Secondary device
A secondary device takes over the export limitation of the primary device. No data are sent to the primary device for the export limitation. The following configurations must be set for the power control:

IMPORTANT!
The secondary device automatically stops energy being fed into the grid in the event of a communication failure if the Modbus control does not send a signal to the inverter.

1. Settings – User interface of the inverter
2. Safety and grid requirements

General
Settings relevant to a grid operator are made under this menu item. An effective power limit in % and/or a power factor limit can be set.

IMPORTANT!
To view and change settings in this menu item, select the user Technician, and enter and confirm the password for the user Technician. Settings in this menu area may 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 clicks = gray (not used)

• Capacitive
• Inductive

DNO feedback
If the rule is activated, the DNO feedback output (pin 1 recommended) must be configured (e.g., for operating a signal device).

The data format *.fpc is supported for Import and Export.

Controlling Priorities
Used to set controlling priorities for I/O power management (DRM or ripple control receiver), the export limitation, and control via Modbus.

1 = highest priority, 3 = lowest priority

Local priorities of the I/O power management, the export limitation, and the Modbus are overridden by cloud control commands (regulatory purposes and virtual power plants) – see Cloud control on page (→) and by backup power.

The controlling priorities are differentiated internally by power control and inverter shutdown. Inverter shutdown always takes precedence over power control. An inverter shutdown command is always executed, regardless of the priority.

• I/O Powerlimit (DRM/ripple control receiver signal) – according to command
• Export Limitation (Soft Limit) – always active
• Modbus (generation limit) – according to command

• I/O Powerlimit with export limitation = 0% (DRM/ripple control receiver signal) – according to command
• Export Limitation (Hard Limit)
• Modbus (shutdown command) – according to command

1. Settings – User interface of the inverter
2. Safety and grid requirements

The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

1. Settings – User interface of the inverter
2. Safety and grid requirements

1. Settings – User interface of the inverter
2. Safety and grid requirements

The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

1. Settings – User interface of the inverter
2. Safety and grid requirements

1. Settings – User interface of the inverter
2. Safety and grid requirements

The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

1. Settings – User interface of the inverter
2. Safety and grid requirements

1. Settings – User interface of the inverter
2. Safety and grid requirements

The ripple control signal receivers and the I/O terminals of the inverter can be connected to one another as shown in the connection diagram.
For distances of over 10 m between the inverter and the ripple control signal receiver, a CAT 5 STP cable is recommended as a minimum and the shielding must be connected on one side at the push-in terminal of the data communication area (SHIELD).

1. Settings – User interface of the inverter
2. Safety and grid requirements

1. Settings – User interface of the inverter
2. Safety and grid requirements

Description
The Autotest makes it possible to check the Italian protection function, required by the applicable standard for monitoring the voltage and frequency limit values of the inverter during commissioning. In normal operation, the inverter constantly checks the real-time actual value of the voltage and frequency of the grid.
Once the Autotest has started, different individual tests are carried out automatically, in succession. Depending on the grid conditions, the duration of the test is approximately 15 minutes.

IMPORTANT!
In Italy, the inverter may only be commissioned following a successfully completed Autotest (CEI 0-21). If an Autotest is not passed, grid power feed operation may not take place. Once the Autotest is started, it must be completed successfully. The Autotest cannot be started during backup power mode.

Note on the Autotest
The limit values are set in the Safety and Grid Regulations > Country Setup > Grid Support Functions menu area.
The Country Setup menu area is intended exclusively for installers/service technicians from authorized specialist companies. The inverter access code required for this menu area can be requested in the Fronius Solar.SOS portal (see chapter Requesting inverter codes in Solar.SOS on page (→)).

The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

1. Appendix

The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

1. Appendix
2. Service, maintenance and disposal

The inverter is designed so that it does not require additional maintenance work. Nevertheless, a few points must be considered during operation to ensure that the inverter works perfectly.

1. Appendix
2. Service, maintenance and disposal

Maintenance and service work may only be carried out by Fronius-trained service technicians.

1. Appendix
2. Service, maintenance and disposal

Wipe the inverter, if necessary, with a damp cloth.
Do not use cleaning agents, scouring agents, solvents, or similar products to clean the inverter.

1. Appendix
2. Service, maintenance and disposal

1

Switch off power to the inverter and wait for the capacitors to discharge (2 minutes) and the fan to shut down.
Turn the DC disconnector to the "off" switch setting.

2

Remove any build-up of dirt on the heat sink and fan using compressed air, a cloth, or a brush.

NOTE!

Risk due to damage to the fan bearing in the event of incorrect cleaning.

Excessive speeds and the application of pressure to the fan bearing can cause damage.

Block the fan and clean with compressed air.

When using a cloth or brush, clean the fan without applying any pressure.

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

1. Appendix
2. Service, maintenance and disposal

1. Appendix
2. Service, maintenance and disposal

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. Used equipment must be returned to the distributor or through a local authorized collection and disposal system. Proper disposal of the used device promotes sustainable recycling of resources and prevents negative effects on health and the environment.

• Collect separately
• Observe local regulations
• Crush cardboard boxes

1. Appendix

Detailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.

To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.

1. Appendix
2. Warranty provisions

Detailed, country-specific warranty conditions are available at www.fronius.com/solar/warranty.

To obtain the full warranty period for your newly installed Fronius product, please register at www.solarweb.com.

1. Appendix

Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.

1. Appendix
2. Status codes and remedy

Status codes are displayed on the user interface of the inverter in the System > Event Log menu area or in the user menu under Notifications and in Fronius Solar.web*.

1. Appendix
2. Status codes and remedy

1. Appendix

1. Appendix
2. Technical data

1. Appendix
2. Technical data

1. Appendix
2. Technical data

1. Appendix
2. Technical data