Fronius Symo Advanced UL (Online) Installation instructions

This manual contains important instructions for the inverter that must be followed during installation and maintenance of the inverter.

The inverter is designed and tested according to international safety requirements. Due to its electrical and electronic components, certain precautions must be taken when installing and operating the inverter.
In order to reduce the risk of injury to persons and to ensure safe installation and operation of the inverter, be sure to read these Operating Instructions carefully and follow all instructions and safety instructions.

Failure to observe the Operating Instructions and safety instructions can void the warranty and/or cause damage to the inverters or other property damage!

1. Safety

This manual contains important instructions for the inverter that must be followed during installation and maintenance of the inverter.

The inverter is designed and tested according to international safety requirements. Due to its electrical and electronic components, certain precautions must be taken when installing and operating the inverter.
In order to reduce the risk of injury to persons and to ensure safe installation and operation of the inverter, be sure to read these Operating Instructions carefully and follow all instructions and safety instructions.

Failure to observe the Operating Instructions and safety instructions can void the warranty and/or cause damage to the inverters or other property damage!

1. Safety

All electrical installations must be carried out in accordance with the National Electrical Code, ANSI/NFPA 70, and any other codes and regulations applicable to the installation site.

For installations in Canada, the installations must be done in accordance with applicable Canadian standards.

1. Safety

The rapid shutdown (RSD) can be triggered via loss of the grid connection: If the AC connection is lost, a rapid shutdown can be performed automatically. The inverter detects a loss of the AC connection and the lines are discharged to < 30 V_DC / 8 A / 240 VA and < 15 V_AC / 8 A / 240 VA. The inverter also interrupts the communication to the PV modules if they comply with the SunSpec standard for Rapid Shutdown.

In case a module-level shutdown equipment within the PV array is used in combination with the inverter, this labeling has to be used according to NEC (Section 690.12), CEC (64-218):

In case a string-level shutdown equipment at the PV array is used in combination with the inverter, this labeling has to be used according to NEC (Section 690.12), CEC (64-218).

Warning! The installer is responsible for the correct labeling of the PV system. The rapid shutdown requirement of the inverter is not affected by the FRT (fault ride through) capability, so the inverter is „Grid support interactive compatible“

Warning! This photovoltaic rapid shutdown equipment (PVRSE) does not perform all of the functions of a complete photovoltaic rapid shutdown system (PVRSS). This PVRSE must be installed with other equipment to from a complete PVRSS that meets the requirements of NEC (NFPA 70) section 690.12, CEC 6 section 4-218 for controlled conductors outside the array. Other equipment installed in or on this PV system may adversly affect the operation of the PVRSS. It is the responsibility of the installer to ensure that the completed PV system meets the rapid shutdown functional requirements. This equipment must be installed according to the manufacturer´s installation instructions

Self-test
A self-test of the RSD function can be performed manually or automatically. The self-test only affects the discharge circuit of the RSD function. All other RSD circuit components are implemented in a single-failure-proof manner.

Automatic self-test sequence:
At each start - before switching on to the public network - the discharge circuit is activated for 10 ms if the DC voltage (40 V) is sufficient and the feedback pin is checked before and during charging.

Manual self-test sequence:
A manual self-test can be triggered by an interruption of the AC connection (e.g.: AC breaker).

The discharge must be measured and checked using a multimeter.

Self-test error automatic: AC_SystemFailure

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

1. Installation location and position

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

1. Installation location and position

Fire Prevention

The manufacturer's specifications for connection, installation, and operation must be observed. You must carefully follow all installation steps and make all connections in accordance with specifications and regulations to minimize any risk of danger.
The tightening torques for the respective terminals are listed in the Installation Instructions for the devices.

1. Installation location and position

• Utilization for any other purpose, or in any other manner
• Alternations to the inverter are not expressly recommended by Fronius
• Installation of components that are not expressly recommended or sold by Fronius.

The manufacturer is not responsible for any damage resulting from improper use.
All warranty claims are considered void in such cases.

• carefully reading and obeying the instructions and all the safety and danger notices in the Operating and Installation Instructions
• compliance with the maintenance operations
• installation as specified in the Installation Instructions

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

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

Follow all grid operator regulations regarding grid power feed and connection methods.

1. Installation location and position

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

		The inverter is suitable for indoor installation.
		The inverter is suitable for outdoor installation. Because of its NEMA 4X protection class, the inverter is not susceptible to hose water on any side and can also be operated in moist environments. However:
		In order to keep inverter heating as low as possible, do not expose the inverter to direct sunlight. The inverter should be installed in a protected location, e.g., near the solar modules or under an overhanging roof.
		IMPORTANT! The inverter must not be installed or operated above an altitude of 11,154 ft. (3400 m). The maximum permissible DC voltage of the inverter depends on the altitude. UDCmax at an altitude of:
		Symo Advanced 10.0-3–12.0-3 208–240 0 to 11,154 ft ( 0 to 3400 m). = 600 V Symo Advanced 15.0-3–24.0-3 480 0 to 6561 ft ( 0 to 2000 m). = 1000 V 6531 to 8202 ft (2000 to 2500 m). = 950 V 8202 to 9842 ft (2500 to 3000 m). = 900 V 9842 to 11,154 ft (3000 to 3400 m). = 850 V
		The output power reduces when the device temperature is too high, and this may occur earlier than normal at increased altitudes.
		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)
		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 dustproof in principle. However, in areas of high dust accumulation, the cooling surfaces can become dusty, which can impair the thermal performance. In this case, the dust must be removed regularly. We therefore recommend that installation is not carried out in areas and environments with high dust accumulation (e.g., iron filings) as this can cause damage to the inverter.
		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 the connections upwards.
		Do not install the inverter in a sloping position on a vertical wall or column.
		Do not install the inverter in a horizontal position on a vertical wall or column.
		Do not install the inverter with the connections upwards on a vertical wall or column.
		Do not install the inverter overhanging with the connections upwards.
		Do not install the inverter overhanging with the connections downwards.
		Do not install the inverter on the ceiling.

1. Installation location and position

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

1. Installation location and position

1. Installation location and position

The inverter is designed exclusively for connection to and use with non-grounded solar modules. The solar modules must not be grounded at either the positive or negative pole.

1. Installation location and position

The inverter is equipped with a Power Line Communication (PLC) transmitter on the DC side.
Its function is to ensure rapid shutdown in accordance with US safety standard NEC 2017 Art. 690.12. The PLC is implemented according to the specification "Communication Signal for Rapid Shutdown – SunSpec Interoperability Specification". Please visit www.sunspec.org for details.

• Keep the distance between the DC+ and DC- conductors as small as possible
• Avoid cable loops caused by cables that are too long (coil effect)
• Use metal cable ducts where possible
• Do not place DC cables from different inverters in the same cable duct or cable tray

1. Preparation

1. Preparation
2. Attaching the Mounting Bracket

1. Preparation
2. Attaching the Mounting Bracket

Important! Depending on the surface, different mounting materials may be required for installing the mounting bracket. These mounting materials are not part of the scope of delivery for the inverter. The installer is responsible for selecting the proper mounting materials.

1. Preparation
2. Attaching the Mounting Bracket

For the installation of the inverter we recommend steel or aluminum screws with a diameter of 0.2–0.3 in. (6–8 mm).

1. Preparation
2. Attaching the Mounting Bracket

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1. Preparation
2. Attaching the Mounting Bracket

The mounting bracket must be secured in at least four places.

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1. Preparation
2. Attaching the Mounting Bracket

The mounting bracket must be secured in at least four places.

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1. Preparation
2. Attaching the Mounting Bracket

Notice! When attaching the mounting bracket to the wall or to a column, make sure that the mounting bracket is not warped or deformed.

1. Preparation

1. Preparation
2. Knockouts

1. Preparation
2. Knockouts

The wall bracket contains several knockouts of different sizes. When knocked out, the openings are used for the inputs of various wires.

IMPORTANT! The knockouts on the rear of the wall bracket are made of metal.

1. Preparation
2. Knockouts

IMPORTANT! The knockouts on the underside of the mounting bracket may be knocked out using a hammer or screwdriver, drilled out using a step drill, or opened using a hole punch. The side knockouts and the knockouts at the back may only be drilled out with a step drill or opened with a hole punch.

IMPORTANT! You should only remove the minimum number of knockouts required for the available cables.

	Use suitable eye protection when knocking/drilling out the knockouts.
	Only knock out knockouts using a hammer or screwdriver from the inside outwards.
	Only use suitable step drills to drill out the knockouts. Do not use spiral drills for drilling out!
	Only drill out knockouts using a step drill from the outside inwards.
	When drilling out using a step drill, ensure that the inside of device (e.g. connection block) is not damaged.
	When drilling out the knockouts at the back, place the mounting bracket on an even surface with the back upwards so that shavings and pieces of metal can fall out of the mounting bracket.
	Attach appropriate conduits to all knocked/drilled out knockouts. In the event of installation outside, only use watertight conduits and conduit fittings. Conduits and conduit fittings are not included with the inverter.
	If necessary, deburr the number of knockouts required with a suitable tool.

1. AC~

Delta Setup: 208 240 220 BR 50 Hz MG 3P MG 1P	No neutral conductor Nominal voltage: 208 V 240 V 220 V 220 V 50 Hz 208–240 V Microgrid 208 V Microgrid 240 V	Appropriate inverter: Symo Advanced 10.0-3 208–240 / 12.0-3 208–240
WYE Setup: 208 N 220 N BR N 50 HN HI2 480 N 440 N 50 HN MG 3N MG 2N MG 5N MG 6 CAL3 HI3	Neutral conductor required Nominal voltage: 208 V 220 V 220 V 50 Hz 208–240 V 208 V 480 V 440 V 50 Hz 415 V Microgrid 208 V Microgrid 50 Hz 208–240 V Microgrid 50 Hz 480 V Microgrid 480 V 480 V 480 V	Appropriate inverter: Symo Advanced 10.0-3 208–240 / 12.0-3 208–240 Symo Advanced 15.0-3 480 / 20.0-3 480 / 22.7-3 480 / 24.0-3 480
Hi-Leg Delta Setup: 240 N 50 HN MG 1N MG 2N HI1	Neutral conductor required Nominal voltage: 240 V 50 Hz 208–240 V Microgrid 240 V Microgrid 50 Hz 208–240 V 208 V	Appropriate inverter: Symo Advanced 10.0-3 208–240 / 12.0-3 208–240

1. AC~

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

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

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

Copper (Cu) or aluminum (Al): round, solid Copper: round, stranded

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

The AC-side terminals are designed for connecting single-wire, round aluminum cables. Due to the reaction of aluminum with air that creates a tough, non-conductive oxide layer the following points must be considered when connecting aluminum cables:

• Reduced rated currents for aluminum cables
• The connection requirements listed below

Always follow the instructions of the cable manufacturer when using aluminum cables.

Take into account local specifications when configuring cable cross sections.

Connection Requirements:

IMPORTANT! Do not use brushes, files, or sandpaper; aluminum particles may get stuck and can transfer to other cables.

IMPORTANT!Repeat the steps above whenever the cable is disconnected and then reconnected.

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

The resistance in the leads to the AC-side connection terminals must be as low as possible for optimal functioning of grid monitoring.

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

IMPORTANT! The ground conductor GND of the AC cable must be laid so that it is disconnected last.
Measure the ground conductor GND longer, for example, and loop.

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If AC cables are laid over the shaft of the DC main switch or across the DC main switch connection block, the cables may be damaged when the inverter is pivoted or the inverter may not be able to be pivoted.

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

If excessively long AC or DC cables are laid in loops in the connection area, fix the cables to the designated eyelets at the top and bottom of the connection block using cable ties.

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

Power circuit breaker

RCCB

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

Depending on the installation, an additional external AC and/or DC disconnect may be required if the inverter is installed in a location not easily accessible to utility or fire personnel. Contact your local authorities for additional information.

1. DC=

1. DC=
2. Connecting solar module strings to the inverter

1. DC=
2. Connecting solar module strings to the inverter

Only valid for the device types with the "Ecofuse" option:

The use of string fuses provides additional fuse protection for solar modules.
The maximum short circuit current I_SC, the maximum module backfeed current I_R, and the specification of the maximum string fuse value in the module data sheet of the respective solar module are decisive factors in the protection of the solar module.

The maximum short circuit current I_SC per terminal is 15 A.

The string fuse release current can be set to greater than 15 A if required. However, a release current of 20 A must not be exceeded.

If the inverter is being operated with an external string collection box, the DC connector kit 25 (item numbers 42,0201,4479 for DC+ and 42,0201,4480 for DC-) must be used. In this case the solar modules are externally protected in the string collection box and the metal bolts should be used in the inverter.

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

The inverter is delivered with metal bolts as standard.

1. DC=
2. Connecting solar module strings to the inverter

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

Copper (Cu) or aluminum (Al): round, solid Copper: round, stranded

1. DC=
2. Connecting solar module strings to the inverter

• The open circuit voltage of the solar modules increases as the temperature decreases, assuming constant irradiance. The open circuit voltage may not exceed the following values, depending on the altitude:

• If the open circuit voltage exceeds the values stated above, the inverter may be damaged and all warranty rights will become null and void as the inverter records the last DC voltage in the system meaning that non-compliance with the maximum permitted limits can be checked.
• Note the temperature coefficients in the solar module data sheet
• More exact data for sizing the solar modules for the particular location can be obtained using calculation tools such as the Fronius Solar.creator (creator.fronius.com).
• See NEC table 690.7 for the appropriate voltage adjustment factor for crystalline silicon solar modules, or use the manufacturer's specified voltage coefficients.

1. DC=
2. Connecting solar module strings to the inverter

The DC-side terminals are designed for connecting single-wire, round aluminum cables. Due to the reaction of aluminum with air that creates a tough, non-conductive oxide layer the following points must be considered when connecting aluminum cables:

• Reduced rated currents for aluminum cables
• The connection requirements listed below

IMPORTANT! Always follow the instructions of the cable manufacturer when using aluminum cables.

IMPORTANT! Take into account local specifications when configuring cable cross sections.

Connection Requirements:

IMPORTANT! Do not use brushes, files, or sandpaper; aluminum particles may get stuck and can transfer to other cables.

IMPORTANT! Repeat the steps above whenever the cable is disconnected and then reconnected.

1. DC=
2. Connecting solar module strings to the inverter

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If DC cables are laid over the shaft of the DC main switch or across the DC main switch connection block, the cables may be damaged when the inverter is pivoted or the inverter may not be able to be pivoted.

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

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

• Provide separate conduits for data communication cables
• Lay data communication cables in the supplied conduit
• Knock out the appropriate opening
• Cleanly deburr the knocked-out opening
• Clip the inverter onto the mounting bracket
• Guide the data communication cables through the cable glands from behind
• When pivoting the inverter, ensure that the cables are not trapped, kinked, or damaged in any other way. Do not loop the data communication cables.
• Lay the data communication cables in the data communication area of the inverter and connect to the Solar.Net “IN” and “OUT” connections.
  Plug the termination plugs into the remaining Solar.Net connections.

1. Laying Solar.Net Cables

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

• Provide separate conduits for data communication cables
• Lay data communication cables in the supplied conduit
• Knock out the appropriate opening
• Cleanly deburr the knocked-out opening
• Clip the inverter onto the mounting bracket
• Guide the data communication cables through the cable glands from behind
• When pivoting the inverter, ensure that the cables are not trapped, kinked, or damaged in any other way. Do not loop the data communication cables.
• Lay the data communication cables in the data communication area of the inverter and connect to the Solar.Net “IN” and “OUT” connections.
  Plug the termination plugs into the remaining Solar.Net connections.

1. Laying Solar.Net Cables
2. Data communication

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

• Provide separate conduits for data communication cables
• Lay data communication cables in the supplied conduit
• Knock out the appropriate opening
• Cleanly deburr the knocked-out opening
• Clip the inverter onto the mounting bracket
• Guide the data communication cables through the cable glands from behind
• When pivoting the inverter, ensure that the cables are not trapped, kinked, or damaged in any other way. Do not loop the data communication cables.
• Lay the data communication cables in the data communication area of the inverter and connect to the Solar.Net “IN” and “OUT” connections.
  Plug the termination plugs into the remaining Solar.Net connections.

1. Laying Solar.Net Cables
2. Data communication

IMPORTANT! Follow general ESD guidelines when handling option cards.

IMPORTANT! Only one Fronius Datamanager in master mode is permitted per Fronius Solar.Net Ring. Switch other Fronius Datamanagers to slave mode or remove them.
Unused option card slots can be closed by replacing the cover (item number 42,0405,2094), or an inverter without Fronius Datamanager (light version) can be used.

IMPORTANT! Only knock out one opening for the PC board when installing a data manager in the inverter.

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1. Laying Solar.Net Cables
2. Data communication

In the Fronius Solar Net ring (a combination of several inverters), the Fail-Safe function prevents inadmissible feeding of the connected inverters in the start-up phase or during operation. For this purpose, a signal is transmitted from the primary inverter with built-in data manager to the secondary inverters (Lite devices).

The function is activated as soon as the data manager fails or the Solar Net connection is interrupted. In this case, the signal is not transmitted to the secondary inverters. All devices switch off with status 710.

The following requirements must be met to enable the Fail-Safe to function correctly:

• For all inverters in the Solar Net ring, Fail-Safe Mode must be set to Permanent and Fail-Safe Behaviour to Disconnect.
• The inverter with data manager must be located in the last position of the ring line.

Correct wiring

Function in the event of a fault

Faults occur at the beginning and end of the Solar Net ring – the primary inverter stops sending the signal, and secondary inverters switch off with status 710.

Faults occur at the beginning and end of the Solar Net ring or between the connected inverters – the primary inverter stops sending the signal, and secondary inverters switch off with status 710.

1. Finally...

NOTE!

Condensation in the conduits can damage the inverter or the photovoltaic system components.

To avoid undesirable air circulation and condensation in the conduits:

seal all conduits in use with a permanently elastic sealant

seal every incoming and outgoing conduit

seal both conduit ends.

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1. Finally...

Due to the high weight, two people are required to clip the inverter into the mounting bracket.

The fixing screws in the data communication area of the inverter are used to fix the inverter to the mounting bracket. Fixing screws must be properly tightened to ensure correct contact between the inverter and the mounting bracket.

Use a torque screwdriver to insert the screws into the inverter. Do not use a conventional cordless screwdriver – the tightening torque will not be sufficiently accurate.

Before attaching the Datcom cover, check the seals on the back for damage. If there is damage, replacement covers (DatCom Cover Upgrade Kit) must be ordered.

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1. Finally...
2. Clipping the Inverter onto the Mounting Bracket

Due to the high weight, two people are required to clip the inverter into the mounting bracket.

The fixing screws in the data communication area of the inverter are used to fix the inverter to the mounting bracket. Fixing screws must be properly tightened to ensure correct contact between the inverter and the mounting bracket.

Use a torque screwdriver to insert the screws into the inverter. Do not use a conventional cordless screwdriver – the tightening torque will not be sufficiently accurate.

Before attaching the Datcom cover, check the seals on the back for damage. If there is damage, replacement covers (DatCom Cover Upgrade Kit) must be ordered.

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1. Finally...

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

If setup is stopped before it is completed, it can be started again via 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 starting the inverter for the first time. If the country setup needs to be changed at a later date, contact your technical support.

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* Country setup examples The available country setups may change during a software update. Therefore, the following list may not exactly match the display on the inverter.
Setups: Symo Advanced 208–240 240 N (with NL-Mon) 240 (without NL-Mon) 208 N (with NL-Mon) 208 (without NL-Mon) 220 N (with NL-Mon) 220 (without NL-Mon) 50 Hz 50 HN (with NL-Mon) BR N (Brazil 220 V with NL-Mon) BR (Brazil 220 V without NL-Mon) HI1 (Hawaii 240 V with NL-Mon) HI2 (Hawaii 208 V with NL-Mon)	Symo Advanced 208–240 MG1N* (Microgrid 240 V with NL-Mon) MG1P* (Microgrid 240 V without NL-Mon) MG2N* (Microgrid 220 V without NL-Mon) MG3N* (Microgrid 208 V without NL-Mon) MG3P* (Microgrid 208 V without NL-Mon)	Symo Advanced 480 480 N (with NL-Mon) 440 N (with NL-Mon) 50 HN (with NL-Mon) CAL3 (California 480 V with NL-Mon) HI3 (Hawaii with NL-Mon) MG5N* (Microgrid 240 V with NL-Mon) MG6* (Microgrid)
* For more information about "Field Adjustable Trip Points" and "Special Purpose Utility-Interactive" see www.fronius.com/QR-link/42042102339
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1. Finally...
2. Using for the first time

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

If setup is stopped before it is completed, it can be started again via 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 starting the inverter for the first time. If the country setup needs to be changed at a later date, contact your technical support.

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* Country setup examples The available country setups may change during a software update. Therefore, the following list may not exactly match the display on the inverter.
Setups: Symo Advanced 208–240 240 N (with NL-Mon) 240 (without NL-Mon) 208 N (with NL-Mon) 208 (without NL-Mon) 220 N (with NL-Mon) 220 (without NL-Mon) 50 Hz 50 HN (with NL-Mon) BR N (Brazil 220 V with NL-Mon) BR (Brazil 220 V without NL-Mon) HI1 (Hawaii 240 V with NL-Mon) HI2 (Hawaii 208 V with NL-Mon)	Symo Advanced 208–240 MG1N* (Microgrid 240 V with NL-Mon) MG1P* (Microgrid 240 V without NL-Mon) MG2N* (Microgrid 220 V without NL-Mon) MG3N* (Microgrid 208 V without NL-Mon) MG3P* (Microgrid 208 V without NL-Mon)	Symo Advanced 480 480 N (with NL-Mon) 440 N (with NL-Mon) 50 HN (with NL-Mon) CAL3 (California 480 V with NL-Mon) HI3 (Hawaii with NL-Mon) MG5N* (Microgrid 240 V with NL-Mon) MG6* (Microgrid)
* For more information about "Field Adjustable Trip Points" and "Special Purpose Utility-Interactive" see www.fronius.com/QR-link/42042102339
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A USB flash drive connected to the USB A socket can act as a data logger for an inverter.

The logging data that is saved on the USB flash drive can be viewed directly in third-party applications (e.g., Microsoft® Excel) at any time via the included CSV file.

Older Excel versions (up to Excel 2007) have a row limit of 65536.

1. Options

A USB flash drive connected to the USB A socket can act as a data logger for an inverter.

The logging data that is saved on the USB flash drive can be viewed directly in third-party applications (e.g., Microsoft® Excel) at any time via the included CSV file.

Older Excel versions (up to Excel 2007) have a row limit of 65536.

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

A USB flash drive connected to the USB A socket can act as a data logger for an inverter.

The logging data that is saved on the USB flash drive can be viewed directly in third-party applications (e.g., Microsoft® Excel) at any time via the included CSV file.

Older Excel versions (up to Excel 2007) have a row limit of 65536.

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

If the USB thumb drive is used as a datalogger, three files are automatically created:

• FRONIUS.sys system file:
  This file saves information from the inverter that is irrelevant to the customer. The file must not be deleted separately. Only delete all files together (sys, fld, csv).
  
• DALO.fld log file:
  Log file for reading out data in Fronius Solar.access.
  
  You can find additional information on the Fronius Solar.access software in the “DATCOM Detail” Operating Instructions at http://www.fronius.com
  
• DATA.csv log file:
  A log file for reading out data in a spreadsheet program (e.g., Microsoft® Excel)

Data structure on the USB thumb drive

(1)	USB root directory
(2)	Fronius inverter (Fronius Galvo, Fronius Symo Advanced, Fronius Primo, or Fronius Eco)
(3)	Inverter number – can be set in the setup menu under DATCOM

If multiple inverters exist with the same inverter number, the three files are saved in the same folder. A number is appended to the file name (e.g., DALO_02.fld)

Structure of the CSV file:

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

One USB thumb drive with a memory capacity of 1 GB, for example, can record logging data at a logging interval of 5 minutes for approx. 7 years.

CSV file
CSV files can store only 65,535 rows (data records) (up to Microsoft® Excel version 2007, afterwards there is no limit).
At a logging interval of 5 minutes, the 65,535 rows are written within approx. 7 months (CSV data size of approx. 8 MB).
To avoid a loss of data, the CSV file should be backed up to a PC within these 7 months and deleted from the USB thumb drive. If the logging interval is set longer, this time frame is extended accordingly.

FLD file
The FLD file should not be larger than 16 MB. At a logging interval of 5 minutes, this corresponds to a storage duration of approx. 6 years.
If the file exceeds this 16 MB limit, it should be backed up to a PC, and all data should be deleted from the USB thumb drive.

After you have backed up the data and removed it from the USB thumb drive, the thumb drive should be immediately reinserted so that it can record logging data; no further steps are required.

ARC file
If the inverter recognizes an arc it will be logged in the ARC file.

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

If the USB thumb drive is removed (e.g., to back up data), the logging data is written to a buffer memory in the inverter.
As soon as the USB thumb drive is reinserted, the data is automatically transferred from the buffer memory to the USB thumb drive.

The buffer memory can store a maximum of 6 logging points. Data is logged only during inverter operation (power greater than 0 W). The logging interval is set to 30 minutes. This results in a time span of 3 hours for recording data in the buffer memory.

When the buffer memory is full, the oldest data in the buffer memory is written over with the new data.

IMPORTANT! The buffer memory requires a constant power supply.
If there is an AC power outage during operation, all data in the buffer memory is lost. The automatic night switch-off must be deactivated so that data is not lost at night (set “Night Mode” to ON – see the Operating Instructions for Datamanager 2.0 and the sections “Setting and Displaying Menu Items,” “Displaying and setting parameters in the ‘DATCOM’ menu item”).

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

Due to the number of USB thumb drives on the market, we cannot guarantee that every USB thumb drive will be recognized by the inverter.

Fronius recommends using only certified, industrial USB thumb drives (look for the USB-IF logo).

The inverter supports USB thumb drives using the following file systems:

• FAT12
• FAT16
• FAT32

Fronius recommends that the USB thumb drive only be used for recording logging data or for updating the inverter software. USB thumb drives should not contain any other data.

USB symbol on the inverter display, e.g., in the 'NOW' display mode:

When the inverter recognizes a USB thumb drive, the USB symbol will appear at the top right of the display.

When inserting the USB thumb drive, make sure that the USB symbol is displayed (it may also be flashing).

IMPORTANT! Please be aware that in outdoor applications the USB thumb drive may only function in a limited temperature range.
Make sure, for example, that the USB thumb drive will also function at low temperatures for outdoor applications.

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

The USB stick can be used to help end customers update inverter software via the USB menu item in the SETUP menu item: the update file is first saved on the USB stick and then transferred to the inverter. The update file must be saved in the USB stick root directory.

1. Options
2. USB Stick as a Data Logger and for Updating Inverter Software

Safety information for removing a USB stick
		IMPORTANT! To prevent a loss of data, the connected USB stick should only be removed under the following conditions: via the SETUP and "Safely remove USB / hardware" menu items when the "Data Transfer" LED is no longer flashing or illuminated.

1. Options

NOTE!

A DIN rail is provided in order to mount accessory electrical devices including, but not limited to, overcurrent protection, metering, radio or cellular modem.

Maximum size for mounting of all devices is 4 w x 4.75 l x 2.59 inches. The installer takes responsibility for any undesired effect on the inverter by installing an electrical device in this area. Caution should be taken when installing a device that may output significant amounts of heat or radio interference. Always ensure that the device does not inhibit the inverter from closing and sealing properly. Any questions about device eligibility should be directed toward technical support.

1. Options
2. Options

NOTE!

A DIN rail is provided in order to mount accessory electrical devices including, but not limited to, overcurrent protection, metering, radio or cellular modem.

Maximum size for mounting of all devices is 4 w x 4.75 l x 2.59 inches. The installer takes responsibility for any undesired effect on the inverter by installing an electrical device in this area. Caution should be taken when installing a device that may output significant amounts of heat or radio interference. Always ensure that the device does not inhibit the inverter from closing and sealing properly. Any questions about device eligibility should be directed toward technical support.

1. Options
2. Options

• Use the ShadeCover when the inverter is exposed to direct sunlight
• Use 4 screws for proper mounting
  

IMPORTANT! For a horizontal installation position and installation outside: perform an annual check to ensure that all screw connections are tightly fastened.

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

1. Care and maintenance

IMPORTANT! For a horizontal installation position and installation outside: perform an annual check to ensure that all screw connections are tightly fastened.

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

1. Care and maintenance
2. Notes on Maintenance

IMPORTANT! For a horizontal installation position and installation outside: perform an annual check to ensure that all screw connections are tightly fastened.

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

1. Care and maintenance
2. Notes on Maintenance

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