Installation Fronius Energy Package Installation Instructions

1. Installation location and position

1. Installation location and position

Fire prevention

Note! 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 fires that can occur despite the presence of the integrated arc detection/extinguishing system (e.g. fires caused by a parallel arc).

Note! After an arc has been detected, the entire photovoltaic system must be checked for possible damage before resetting the inverter.

Observe the manufacturer's connection, installation and operating instructions at all times. To reduce the hazard potential to a minimum, perform all installation and connection work carefully according to the instructions and regulations.
Refer to the device Operating Instructions / Installation Instructions for the tightening torques to be used at the relevant terminal connections.

1. Installation location and position

• Any use above and beyond this purpose
• Making any modifications to the inverter that have not been expressly approved by Fronius
• Installing components that are not distributed or expressly approved by Fronius
• Operating the device with a battery that has not been approved by Fronius
• Operating the equipment with an energy meter that has not been approved by Fronius

Fronius shall not be liable for any damage resulting from such action.
No warranty claims will be entertained.

• Carefully studying and obeying the Installation and Operating Instructions
• Performing all stipulated inspection and maintenance work

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.

Observe the stipulations of the power supply company concerning energy fed into the grid, emergency power mode and the operation of storage systems.

• Emergency power mode may be in operation for at least 1500 hours
• Emergency power mode may be in operation for more than 1500 operating hours if 15% of the duration of the inverter's grid power feed operation is not exceeded at the relevant time

1. Installation location and position

		The inverter is suitable for indoor installation.
		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.
		In order to minimise the heating up of the inverter, do not expose it to direct insolation. Install the inverter in a protected location, e.g. in the vicinity of the solar modules or beneath the eaves.
		UDCmax at an altitude of: 0 to 2000 m = 1000 V 2000 to 2500 m = 900 V 2500 to 3000 m = 815 V 3000 to 3400 m = 750 V IMPORTANT! The inverter must not be installed or used at altitudes above 3400 m.
		Do not install the inverter in: Areas where ammonia, corrosive vapours, acids or salts are present (e.g. fertiliser stores, ventilation openings from cattle sheds, 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: Places where there is an increased risk of damage from farm animals (horses, cattle, sheep, pigs, etc.) Stables or adjoining areas Storage areas for hay, straw, chaff, animal feed, fertilisers, etc.
		Do not install the inverter in: Places and environments subject to a heavy build-up of dust Places and environments in which a heavy build-up of dust containing conductive particles (e.g. iron chips) is likely
		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 location and position

		The inverter is suitable for vertical installation on a vertical wall or column.
		The inverter is suitable for a horizontal installation position.
		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.

• the inverter is placed in the mounting bracket and permanently attached using screws，
• the cover for the data communication area is permanently attached to the inverter with screws.

Degree of protection IP 20 applies to the mounting bracket with no inverter and the venting duct.

1. Fitting the inverter mounting bracket

• the inverter is placed in the mounting bracket and permanently attached using screws，
• the cover for the data communication area is permanently attached to the inverter with screws.

Degree of protection IP 20 applies to the mounting bracket with no inverter and the venting duct.

1. Fitting the inverter mounting bracket

Important! Different fixings may be required to fit the mounting bracket depending on the type of underlying surface. Fixings are therefore not included in the scope of supply of the inverter. The installer is responsible for selecting the right type of fixing.

1. Fitting the inverter mounting bracket

To install the inverter, the manufacturer recommends the use of steel or aluminium screws with a diameter of 6 - 8 mm.

1. Fitting the inverter mounting bracket

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1. Fitting the inverter mounting bracket

Note! When fitting the mounting bracket to the wall, ensure that the mounting bracket does not become warped or deformed.

1. Fitting the inverter mounting bracket

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Tip: Install the inverter so that its display is at eye level

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Note! When mounting the mounting bracket on the wall, ensure that the mounting bracket does not become warped or deformed.

1. Fitting the inverter mounting bracket

When installing the inverter on a mast or support, Fronius recommends the "Pole Clamp" kit from Rittal GmbH (order no. SZ 2584.000).
This kit enables the inverter to be installed on round or rectangular masts with the following diameters: Æ from 40 to 190 mm (round mast), ÿ from 50 to 150 mm (rectangular mast)

1. Fitting the inverter mounting bracket

The mounting bracket must be affixed at a minimum of four points.

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

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

To provide the best possible grid monitoring, the resistance in the leads to the AC-side terminals should be as low as possible.

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

• Max. cross-section of each conductor cable: 16 mm²
• Min. cross-section of each conductor cable: in accordance with the fuse rating on the AC side, but at least 2.5 mm²
• The AC cables can be connected to the AC terminals without ferrules.
• In the case of an AC cable with a cross-section of 16 mm², ferrules can be either not used or only used to a limited extent depending on the type of ferrule and crimping.

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

The following types of AC cable can be connected to the AC terminals of the inverter:

Copper or aluminium: solid round conductor Copper: fine-stranded round conductor, up to conductor class 4

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

The AC-side terminals are suitable for connecting single-wire, round aluminium cables. Because of the formation of a non-conductive oxide layer due to the reaction of aluminium with air, the following points must be considered when connecting aluminium cables:

• the reduced rated currents for aluminium cables
• the connection conditions listed below

Always follow the cable manufacturer instructions when using aluminium cables.

When designing cable cross-sections, take local regulations into account.

Connection conditions:

IMPORTANT! Do not use brushes, files or emery paper, as the aluminium particles get trapped and can be transferred to other conductors.

IMPORTANT!Repeat the procedure if the cable has been disconnected and is to be re-connected.

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

For a standard M32 metric screw joint with a reducer:
Cable diameter from 7-15 mm

When using an M32 metric screw joint (reducer removed):

With cable diameters greater than 21 mm, the M32 screw joint must be replaced by an M32 screw joint with a larger clamping area – item number: 42,0407,0780 – strain-relief device M32 x 1.5 KB 18–25.

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

• Ensure that the grid neutral conductor is grounded. This may not be the case for IT grids (insulated grids with no grounding); it will then not be possible to use the inverter.
• In order to use the inverter, the neutral conductor must be connected. A neutral conductor that is too small may adversely affect the inverter feeding energy into the grid. The neutral conductor must therefore be the same size as the other live conductors.

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

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

• Form loops with the AC cables when connecting them to the AC terminals.
• When securing the AC cables using a metric screw joint, ensure that the loops do not protrude beyond the connection area.
  Otherwise, under certain circumstances it may no longer be possible to close the inverter.

IMPORTANT! The PE ground conductor of the AC cable must be laid in such a way that it is the last to be disconnected in the event that the strain-relief device should fail.
This can be ensured, for example, by making it somewhat longer and by laying it in a loop.

If AC cables are laid over the shaft of the DC main switch or across the connection block of the DC main switch, they may be damaged when the inverter is swung in, or they may even prevent the inverter from being swung in.

IMPORTANT! Do not lay AC cables over the shaft of the DC main switch or across the connection block of the DC main switch.

If overlength AC or DC cables are to be laid in loops in the connection area, attach the cables with cable ties to the eyelets provided on the top and bottom of the connection block.

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

1. Connecting solar module strings to the inverter

1. Connecting solar module strings to the inverter

To enable suitable solar 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 solar 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 no warranty claims will be entertained.
• The temperature coefficients on the solar modules data sheet must be observed.
• More exact values for dimensioning the solar modules can be provided by suitable calculation programs, like the Fronius Solar.creator (creator.fronius.com).

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

1. Connecting solar module strings to the inverter

Max. cross-section of each DC cable:
10 mm²

Min. cross-section of each DC cable:
2.5 mm²

The DC cables can be connected to the DC terminals without ferrules.

To ensure effective strain relief of the solar module strings, only use cables with identical cross-sections.

In the case of a DC cable with a cross-section of 16 mm², ferrules can be either not used or only used to a limited extent depending on the type of ferrule and crimping.

1. Connecting solar module strings to the inverter

The DC-side terminals are suitable for connecting single-wire, round aluminium cables. Because of the formation of a non-conductive oxide layer due to the reaction of aluminium with air, the following points must be considered when connecting aluminium cables:

• the reduced rated currents for aluminium cables
• the connection conditions listed below

Note! Always follow the cable manufacturer instructions when using aluminium cables.

Note! When designing cable cross-sections, take local regulations into account.

Connection conditions:

IMPORTANT! Do not use brushes, files or emery paper, as the aluminium particles get trapped and can be transferred to other conductors.

IMPORTANT! Repeat the procedure if the cable has been disconnected and is to be re-connected.

1. Connecting solar module strings to the inverter

The hybrid inverter is a transformerless device. The individual poles of the solar modules must not be grounded.

1. Connecting solar module strings to the inverter

CAUTION!

Risk of possible damage to the inverter!

Check the polarity and voltage of the solar module strings before making the connection. The voltage must not exceed the following values:

when installed between 0 and 2000 m above sea level: 1000 V

when installed between 2001 and 2500 m above sea level: 900 V

when installed between 2501 and 3000 m above sea level: 815 V

when installed between 3001 and 3400 m above sea level: 750 V

1. Connecting solar module strings to the inverter

Only break out as many target break points as there are cables.

1. Connecting solar module strings to the inverter

If DC cables are laid over the shaft of the DC main switch or across the connection block of the DC main switch, they may be damaged when the inverter is swung in or they may even prevent the inverter from being swung in.

IMPORTANT! Do not lay DC cables over the shaft of the DC main switch or across the connection block of the DC main switch.

If overlength AC or DC cables are to be laid in loops in the connection area, attach the cables with cable ties to the eyelets provided on the top and bottom of the connection block.

Only break out as many target break points as there are cables.

1. Connecting the battery to the inverter

Only break out as many target break points as there are cables.

1. Connecting the battery to the inverter

1. Connecting the battery to the inverter

IMPORTANT! Operating the inverter with a free broken-out option card slot is not permitted.
An appropriate blanking cover (42,0405,2020) to cover the slot is available from Fronius as an option.

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

• Depending on the number and cross-section of the data communication cables that are being introduced, take the relevant blanking plugs out of the sealing insert and insert the data communication cables.
• The relevant blanking plugs must be inserted into the free openings on the sealing insert.
  

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1. Connecting the battery to the inverter

The terminating resistor must be set according to how the individual devices are configured (see diagram below).

*) The R 120 Ohm terminating resistor is supplied with the Fronius Smart Meter A DC connection and ground connection must also be established between the battery and the inverter. The connection of the individual lines was illustrated in the preceding chapters. The installer is responsible for choosing the cables.

1. Connecting the battery to the inverter

Cabling variant 1:

Cabling variant 2:

The side sections of the housing lid are designed to function as holding and carrying handles.

• Never attach the inverter to the mounting bracket or swing it in unless the DC main switch is switched off.
• Never use force to attach the inverter or swing it in.

The fastening screws in the data communication area of the inverter are used for securing the inverter to the mounting bracket. Correctly tightened fastening screws are a prerequisite if proper contact is to be established between the inverter and mounting bracket.

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1. Attaching the inverter to the mounting bracket

The side sections of the housing lid are designed to function as holding and carrying handles.

• Never attach the inverter to the mounting bracket or swing it in unless the DC main switch is switched off.
• Never use force to attach the inverter or swing it in.

The fastening screws in the data communication area of the inverter are used for securing the inverter to the mounting bracket. Correctly tightened fastening screws are a prerequisite if proper contact is to be established between the inverter and mounting bracket.

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When starting the inverter for the first time, it is necessary to select various setup settings.

If setup is interrupted before it is complete, it can be restarted by means of an AC reset. An AC reset can be carried out by switching the automatic circuit breaker off and on again.

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

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1. Starting for the first time

When starting the inverter for the first time, it is necessary to select various setup settings.

If setup is interrupted before it is complete, it can be restarted by means of an AC reset. An AC reset can be carried out by switching the automatic circuit breaker off and on again.

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

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• Correct cabling of the emergency power system in the electrical installation (see document entitled "Fronius Energy Package - Examples of emergency power switchover")
• The meter (Fronius Smart Meter) must be installed at the feed-in point and configured
• Latest firmware on the inverter - if required, perform a firmware update
• Select Alternative (emergency power) setup in the CONFIG menu on the inverter (see Installation Instructions)
• Change the required settings in the emergency power area in the IO mapping menu (Fronius system monitoring web page → Settings → IO mapping → Emergency power)
• Set the system to "Auto" in the emergency power system overview (Fronius system monitoring web page → Settings → System overview → Emergency power operating mode)

If there are additional inverters in the system, these should be installed outside of the emergency power circuit, but within that for the Fronius Smart Meter.

1. Activating the emergency power function

• Correct cabling of the emergency power system in the electrical installation (see document entitled "Fronius Energy Package - Examples of emergency power switchover")
• The meter (Fronius Smart Meter) must be installed at the feed-in point and configured
• Latest firmware on the inverter - if required, perform a firmware update
• Select Alternative (emergency power) setup in the CONFIG menu on the inverter (see Installation Instructions)
• Change the required settings in the emergency power area in the IO mapping menu (Fronius system monitoring web page → Settings → IO mapping → Emergency power)
• Set the system to "Auto" in the emergency power system overview (Fronius system monitoring web page → Settings → System overview → Emergency power operating mode)

If there are additional inverters in the system, these should be installed outside of the emergency power circuit, but within that for the Fronius Smart Meter.

1. Activating the emergency power function

		1Press the "Menu" key
		The menu level appears. 2Press the unassigned "Menu / Esc" key 5 times

		'Access Code' is displayed in the 'CODE' menu; the first digit starts flashing. The access code for the CONFIG menu is: 39872
		3Enter the access code for the CONFIG menu: Use the 'Up' and 'Down' keys to select a value for the first digit of the code
		4Press the 'Enter' key

		The second digit flashes.
		5Repeat steps 3 and 4 for the second, third, fourth and fifth digits of the access code until...

		the selected code starts flashing.
		6Press the 'Enter' key
		The first parameter of the CONFIG menu is displayed

1. Activating the emergency power function

• EmergencyPower 50Hz: for all countries with a nominal frequency of 50 Hz
• EmergencyPower 60Hz: for all countries with a nominal frequency of 60 Hz

		1Use the 'Up' and 'Down' keys to select the Alternative (emergency power) setup
		2Press the 'Enter' key

1. Activating the emergency power function

 The Fronius Ohmpilot is not suitable for emergency power mode.
If a Fronius Ohmpilot is used, it should be installed outside of the emergency power circuit

• switch off the circuit breaker on the Fronius Ohmpilot (if fitted)
• or set heating element measurement on the Ohmpilot to manual (under 'General - General Settings - Heater 1 - Manual') and turn off the 'Legionella prevention (h)' and 'Adapt day curve' settings (under 'General - General Settings - Heater 1'). The power level required for these functions exceeds the power limits in emergency power mode. Since these functions are blocked when emergency power mode starts, these settings cannot be changed during a power failure and must be specified beforehand.
• do not turn on boost mode on the Ohmpilot

IMPORTANT! Knowledge of networking systems is required in order to install Fronius system monitoring.

1. Installing Fronius system monitoring – Overview

IMPORTANT! Knowledge of networking systems is required in order to install Fronius system monitoring.

1. Installing Fronius system monitoring – Overview

IMPORTANT! Starting up the Fronius system monitoring function for the first time is made considerably easier with the Fronius Solar.start app. The Fronius Solar.start app is available in the respective app stores.

Or visit
https://wizard.solarweb.com to select the desired menu item

IMPORTANT! In order to establish a connection to Fronius system monitoring, the end device in question (e.g. laptop, tablet, etc.) must be set up as follows:

• "Obtain IP address automatically (DHCP)" must be activated

1Switch the device to Service mode

• Activate the WLAN Access Point via the Setup menu on the inverter

The inverter establishes the WLAN access point. The WLAN access point remains open for 1 hour.

Installation using the Solar.start app 2Download the Fronius Solar.start App 3Run the Fronius Solar.start app

Installation using a web browser 2Connect the end device to the WLAN access point SSID = FRONIUS_239.xxxxx (4-8 digits) Search for a network with the name "FRONIUS_239.xxxxx" Establish a connection to this network Enter the password 12345678 (Alternatively, connect the end device and inverter using an Ethernet cable.) 3Enter the following in the browser: http://datamanager or 192.168.250.181 (IP address for WLAN connection) or 169.254.0.180 (IP address for LAN connection)

The Setup wizard start page is displayed.

If you run the technician wizard, always remember to make a note of the assigned service password. This service password is required to enter settings in the "System overview" and "DNO Editor" menus as well as for advanced battery settings.
If the technician wizard is not run, no specifications regarding power reduction are set and hybrid mode is not possible (charging and discharging of the battery)

The Fronius Solar.start homepage
or
the Fronius system monitoring web page is displayed.

1. Installing Fronius system monitoring – Overview

The solar web wizard consists of 5 steps:

1. General
General system data (e.g. system name) is entered here

2. Service password
Enter (and make a note of) the service password

3. IO assignment
Settings for the IO interface are entered (see also "Fronius Energy Package - IO assignment" Operating Instructions)

4. System overview
Settings for the entire PV system are entered (see also "Fronius Energy Package - System overview" Operating Instructions)

5. Dynamic power
Settings for dynamic power reduction are entered (see also "Fronius Energy Package - Dynamic power reduction" Operating Instructions)

Once you have worked your way through the Solar Web wizard, an automatic process is triggered to calibrate all the components. This involves charging the Fronius Solar Battery fully. After that, the system automatically starts in the set operating mode.
This calibration charging process is also performed automatically during actual operation after a number of charging and discharging cycles. When this calibration charge is performed depends on a number of different factors, such as the average state of charge or the energy throughput through the battery. The time can therefore vary depending on the time of year as well.

If the "permit battery charging from PSC grid" setting is deactivated, this calibration charging process relies exclusively on energy from the photovoltaic system when operating under normal conditions. Depending on the insolation conditions and size of the systems concerned, the charging process can take a very long time.
If the "permit battery charging from PSC grid" setting is activated, the calibration charging process is performed by drawing a constant current from the photovoltaic system and DSO (distribution system operator) grid.

IMPORTANT! The automatic process for fully charging the battery may result in energy being drawn from the DSO grid. The process can take several hours and cannot be aborted.

Note! When installed outdoors in a horizontal position: once a year, check that all screw joints are tight!

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

1. Notes regarding maintenance

Note! When installed outdoors in a horizontal position: once a year, check that all screw joints are tight!

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

1. Notes regarding maintenance

Clean the inverter as required with a damp cloth.
Do not use cleaning agents, abrasives solvents or similar to clean the inverter.