Fronius Smart Meter 50kA-3 Operating Instructions

DANGER!

Indicates immediate danger.

If not avoided, death or serious injury will result.

WARNING!

Indicates a potentially hazardous situation.

If not avoided, death or serious injury may result.

CAUTION!

Indicates a situation where damage or injury could occur.

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

NOTE!

Indicates a risk of flawed results and possible damage to the equipment.

DANGER!

Indicates immediate danger.

If not avoided, death or serious injury will result.

WARNING!

Indicates a potentially hazardous situation.

If not avoided, death or serious injury may result.

CAUTION!

Indicates a situation where damage or injury could occur.

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

NOTE!

Indicates a risk of flawed results and possible damage to the equipment.

The device has been manufactured in line with the state of the art and according to recognized safety standards. If used incorrectly or misused, however, it can cause:

Injury or death to the operator or a third party
Damage to the device and other material assets belonging to the operating company.

All personnel involved in commissioning, maintenance, and servicing of the device must:

Be suitably qualified
Have knowledge of and experience in dealing with electrical installations and
Have fully read and precisely followed these Operating Instructions

The Operating Instructions must always be at hand wherever the device is being used. In addition to the Operating Instructions, attention must also be paid to any generally applicable and local regulations regarding accident prevention and environmental protection.

All safety and danger notices on the device:

Must be kept in a legible state
Must not be damaged
Must not be removed
Must not be covered, pasted or painted over

The terminals can reach high temperatures.

Only operate the device when all protection devices are fully functional. If the protection devices are not fully functional, there is a danger of:

Injury or death to the operator or a third party
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 authorised specialist before the device is switched on.

Never bypass or disable protection devices.

For the location of the safety and danger notices on the device, refer to the section headed "General remarks" in the Operating Instructions for the device.

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

This is for your personal safety!

Operation or storage of the device outside the stipulated area will be deemed as not in accordance with the intended purpose. The manufacturer accepts no liability for any damage resulting from improper use.

The servicing information contained in these operating instructions is intended only for the use of qualified service engineers. An electric shock can be fatal. Do not carry out any actions other than those described in the documentation. This also applies to qualified personnel.

All cables and leads must be secured, undamaged, insulated and adequately dimensioned. Loose connections, scorched, damaged or inadequately dimensioned cables and leads must be immediately repaired by authorised personnel.

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

It is impossible to guarantee that bought-in parts are designed and manufactured to meet the demands made on them, or that they satisfy safety requirements. Use only original spare parts (also applies to standard parts).

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

Components that are not in perfect condition must be changed immediately.

The text and illustrations are all technically correct at the time of printing. We reserve the right to make changes. The contents of the operating instructions shall not provide the basis for any claims whatsoever on the part of the purchaser. If you have any suggestions for improvement, or can point out any mistakes that you have found in the instructions, we will be most grateful for your comments.

The user is responsible for the safekeeping of any changes made to the factory settings. The manufacturer accepts no liability for any deleted personal settings.

The Fronius Smart Meter is a bidirectional electricity meter which optimises self-consumption and records the household's load curve. In conjunction with the Fronius inverter, Fronius Datamanager and Fronius data interface, the Fronius Smart Meter provides a clear overview of a user's own power consumption.

The meter measures the power flow to the loads or to the grid and forwards the information via the Modbus RTU/RS485 communication to the Fronius inverter.

CAUTION!

Observe and follow safety instructions!

Failure to observe the safety instructions will result in damage to personnel and equipment.

Switch off the power supply before establishing a mains connection.

Observe the safety instructions.

The meter measures the power flow to the loads or to the grid and forwards the information via the Modbus RTU/RS485 communication to the Fronius inverter.

CAUTION!

Observe and follow safety instructions!

Failure to observe the safety instructions will result in damage to personnel and equipment.

Switch off the power supply before establishing a mains connection.

Observe the safety instructions.

Technical data, markings and safety symbols are located on the Fronius Smart Meter. These must not be removed nor painted over. The notices and symbols warn of incorrect operation that could result in serious injury and damage to property.

Symbols on the rating plate:
	CE mark The devices conform to all the requisite and relevant standards and guidelines that form part of the relevant EU directive, and are therefore permitted to display the CE mark.
	Regulatory Compliance Mark (RCM) Complies with all applicable regulatory requirements in Australia and New Zealand regarding safety and electromagnetic compatibility, as well as specific requirements for radio equipment.
	WEEE mark In accordance with European Directive 2012/19/EU on waste electrical and electronic equipment and its implementation in national law, used electrical devices must be collected separately and recycled in an environmentally responsible manner. Ensure that you return your used device to your dealer or obtain information regarding a local, authorised collection and disposal system. Failure to comply with this EU Directive may result in a negative impact on the environment and your health!

The Fronius Smart Meter can be installed at two possible locations in the system: at the feed-in point and at the consumption point.

Placement at the feed-in point
Fronius Smart Meter located at the feed-in point.

Placement at the consumption point
Fronius Smart Meter located at the consumption load.

For installation information, see the following chapters:

1Switch off the power supply before establishing a mains connection.

2Mount the Fronius Smart Meter (see Installation on page (→)).

3Connect automatic circuit breakers or automatic circuit breakers and disconnectors (see Protective circuit on page (→)).

4Connect the mains cable to the Fronius Smart Meter (see Cabling on page (→)).

5Mount the current transformers on the conductors. Make sure that the current transformers are pointing in the correct direction. An arrow either points to the load or the source (public grid) (see Connecting the current transformers on page (→)).

6Connect the current transformer and Fronius Smart Meter (see Connecting the current transformers on page (→)).

7Make sure that the current transformer phases match the mains voltage phases (see Connecting the current transformers on page (→)).

8Note down the nominal current of the current transformer for each meter. These values will be required during setup.

9Connect the output terminals of the Fronius Smart Meter to the Fronius inverter (see Connecting the data communication cable to the inverter on page (→)).

10If necessary, set terminating resistors (see Terminating resistors on page (→)).

11Tug on each wire and plug to make sure that they are securely connected to the terminal blocks.

12Switch on the power supply to the Fronius Smart Meter.

13Check the firmware version of the Fronius inverter. To ensure compatibility between the inverter and the Fronius Smart Meter, the software must always be kept up to date. The update can be started via the inverter web page or using Solar.web.

14Set the transformation ratio of the current and voltage transformers (see Setting the transformation ratio of the current and voltage transformers on the Fronius Smart Meter on page (→)).

15If several Fronius Smart Meters are installed in the system, set the address (see "Setting the address" under Setting the address of the Fronius Smart Meter on page (→)).

16Configure and commission the meter (see Start-up on page (→)).

For installation information, see the following chapters:

1Switch off the power supply before establishing a mains connection.

2Mount the Fronius Smart Meter (see Installation on page (→)).

3Connect automatic circuit breakers or automatic circuit breakers and disconnectors (see Protective circuit on page (→)).

4Connect the mains cable to the Fronius Smart Meter (see Cabling on page (→)).

6Connect the current transformer and Fronius Smart Meter (see Connecting the current transformers on page (→)).

7Make sure that the current transformer phases match the mains voltage phases (see Connecting the current transformers on page (→)).

8Note down the nominal current of the current transformer for each meter. These values will be required during setup.

9Connect the output terminals of the Fronius Smart Meter to the Fronius inverter (see Connecting the data communication cable to the inverter on page (→)).

10If necessary, set terminating resistors (see Terminating resistors on page (→)).

11Tug on each wire and plug to make sure that they are securely connected to the terminal blocks.

12Switch on the power supply to the Fronius Smart Meter.

14Set the transformation ratio of the current and voltage transformers (see Setting the transformation ratio of the current and voltage transformers on the Fronius Smart Meter on page (→)).

15If several Fronius Smart Meters are installed in the system, set the address (see "Setting the address" under Setting the address of the Fronius Smart Meter on page (→)).

16Configure and commission the meter (see Start-up on page (→)).

The Fronius Smart Meter can be mounted on a 35 mm DIN rail. The housing comprises 4 DUs (division units, max. 72 mm).

The Fronius Smart Meter is a hard-wired device and requires a disconnecting device (circuit breaker, switch or disconnector) and overcurrent protection (automatic circuit breaker).

The Fronius Smart Meter consumes 10 - 30 mA. The nominal capacity of the disconnecting devices and the overcurrent protection is determined by the wire thickness, the mains voltage and the required breaking capacity.

Disconnecting devices must be mounted within sight and as close as possible to the Fronius Smart Meter; they must also be easy to use.
The disconnecting devices must satisfy the requirements of IEC 60947-1 and IEC 60947-3, as well as all national and local regulations for electrical systems.
Use overcurrent protection rated for max. 63 A.
To monitor more than one mains voltage, use connected automatic circuit breakers.
The overcurrent protection must protect the mains terminals marked L1, L2 and L3. In rare cases, the neutral conductor has an overcurrent protection which must simultaneously interrupt neutral and unearthed lines.

WARNING!

Danger from mains voltage.

An electric shock can be fatal.

Switch off the power supply before connecting the mains voltage inputs to the Fronius Smart Meter.

IMPORTANT!
Do not install more than one cable per screw terminal. If necessary, use terminal blocks. The measuring inputs of the current transformers must be earthed on one side as shown in the circuit diagram.

Connection cross-section:

Wire (rigid): min. 0.05 mm² / max. 4 mm²
Wire (flexible): min. 0.05 mm² / max. 2.5 mm²
Recommended torque: 0.5 Nm / max. 0.8 Nm

Connect each voltage cable to the terminal strip as shown in the graphics below.

General
Do not use current transformers with a voltage output.
Current transformers are directional. If they are mounted backwards or with swapped wires, the measured power will be negative.

Primary current
Maximum current per phase. A current transformer with a primary current greater than the maximum expected current per phase should be selected. The closer the expected current is to this value, the more precise the measurement will be.

Secondary current
The current transformer must supply alternating current at a nominal current of 1 or 5 A. The nominal values for the current transformer are listed in the current transformer data sheet.

Power
The Fronius Smart Meter needs 0.3 VA to carry out its measurements. Losses also occur on the outgoing and return leads. The power of the current transformer must be greater than the sum total of the power of the Fronius Smart Meter and the leads. The higher the power, the better.

Line resistances at different cross-sections (copper wires)
Secondary current [A]	Cross-section [mm²]	Line resistances at different lead lengths (outgoing and return lead)
Secondary current [A]	Cross-section [mm²]	0.5 m	1.0 m	2.5 m	5 m	10 m
5	1.5	0.3 VA	0.6 VA	1.5 VA	2.9 VA	5.8 VA
5	2.5	0.2 VA	0.4 VA	0.9 VA	1.8 VA	3.6 VA
5	4	-	-	0.6 VA	1.1 VA	2.2 VA

Example
The length of the outgoing and return lead (0.5 m each) between the Fronius Smart Meter and the current transformer is a total of 1 m and has a copper cable cross-section of 1.5 mm²; the line resistance is therefore 0.6 VA according to the table above. The self-consumption of the Fronius Smart Meter is 0.3 VA.
Line resistance 0.6 VA + self-consumption 0.3 VA = 0.9 VA
→ A current transformer with a rating of 1 VA, 1.5 VA, 5 VA or higher is suitable here.

Accuracy class
Use Class 1 or better (Class 0.5, 0.2, etc.). Class 1 is equivalent to a deviation of ± 1% of the secondary current at maximum power.

Mounting
Rigid or hinged.
"Rigid" is usually cheaper with better power and accuracy values. Hinged current transformers can be opened for attachment to the conductor. To prevent it being opened inadvertently, a plastic cable tie can be secured to the current transformer. Hinged current transformers can be installed in a system without interrupting the voltage.

Make sure that the current transformers match the voltage phases. Make sure that current transformer L1 measures the current on the same phase that is monitored by voltage input L1. The same applies for phases L2 and L3.
Make sure that the current transformers are pointing in the correct direction. Observe the data sheet for the current transformer.

Attach the current transformers to the conductor to be measured and connect the current transformer cables to the Fronius Smart Meter. Always switch off the power supply before disconnecting live conductors.

The current transformers are connected to connections 1 and 3; 4 and 6; 7 and 9. If necessary, excessively long cables can be shortened accordingly. Observe the sequence in which the phases are connected. Accurate power measurement is only ensured if the mains voltage phases match the current phases.

Suitable voltage transformers: Only voltage transformers with a voltage range from 210 to 440 V (phase - phase) may be used. The voltage transformers must be connected to terminals 2, 5, 8 and 11 at the point of direct voltage measurement.

Fronius SnapINverter:
Connect the data communication connections of the Fronius Smart Meter to the Fronius system monitoring in the inverter. Several Smart Meters can be installed in the system, see chapter Multi-meter system - Fronius SnapINverter on page (→).

1Connect 35 to -.

2Connect 34 to D-.

3Connect 33 to D+.

Fronius GEN24 inverter:
Connect the data communication connections of the Fronius Smart Meter to the Modbus interface of the Fronius GEN24 inverter. Several Smart Meters can be installed in the system, see chapter Multi-meter system - Fronius GEN24 inverter on page (→).

1Connect 35 to GND.

2Connect 34 to M1-.

3Connect 33 to M1+.

NOTE!

More information on successful commissioning.

Note the following information about connecting the data communication cable to the inverter.

Use cables of type CAT5 or higher.

Use a mutual twisted cable pair for data lines that belong together (D+, D- and M1+, M1-).

If the output cables are close to the mains cabling, use wires or cables that are designed for 300 V to 600 V (never less than the operating voltage).

Use double-insulated or sheathed output cables when they are close to bare conductors.

Use shielded twisted pair cables to avoid faults.

The outputs of the Fronius Smart Meter are electrically isolated from hazardous voltages.

	Inverter in the system e. g. Fronius Symo
	Meter - Fronius Smart Meter Terminating resistor R 120 Ohm is included in the scope of supply.
	Modbus RTU slave e. g. Fronius Ohmpilot, Fronius Solar Battery, etc.
	Terminating resistor R 120 Ohm

Due to interference, it is recommended that terminating resistors are used as illustrated below to ensure proper functioning.

* The terminating resistor on Fronius Smart Meters is installed between 33 and 34. The terminating resistor R 120 Ohm is included with the Fronius Smart Meter.

Only the transformation ratio of the current and voltage transformers must be set. All other parameters have already been set in advance.

Password (0001):

Transformation ratio of the current transformers¹⁾ (0001 - 9999²⁾):

Transformation ratio of the voltage transformers^{1), 3)} (001.0 - 500.0²⁾):

Change password and write it down⁴⁾:

¹⁾ IMPORTANT! Changing the transformation ratios will reset the meter data in the Fronius Smart Meter to 0.

²⁾Transformation ratio in the current transformer x Transformation ratio of the voltage transformers = max. 1,000,000.

³⁾ Changeover only when using voltage transformers (direct voltage measurement Vt = 1).

⁴⁾ IMPORTANT! The password cannot be reset.

	Grid supplies the loads in the system if insufficient power is being generated by the PV modules or supplied by the battery.
	Inverter in the system e. g. Fronius Primo, Fronius Symo, etc.
	Utility meter Measures the measurement data relevant for billing amounts of energy (in particular kilowatt hours of energy sourced from the grid and energy fed into the grid). Based on the relevant billing data, the electricity retailer will invoice the energy sourced from the grid and the purchaser of the surplus energy will reimburse the energy fed into the grid.
	Primary meter Records the system's load curve and provides measurement data for energy profiling in Fronius Solar.web. The primary meter also controls the dynamic feed-in control.
	Secondary meter Records the load curve of individual loads (e.g. washing machine, lamps, TV, heat pump, etc.) in the consumption branch and provides measurement data for energy profiling in Fronius Solar.web.
	Producer meter Records the load curve of individual producers (e.g. wind power plant) in the consumption branch and provides measurement data for energy profiling in Fronius Solar.web.
	Modbus RTU slave e. g. Fronius Ohmpilot, Fronius Solar Battery, etc.
	Loads in the system e. g. washing machine, lamps, TV, etc.
	Additional loads in the system e. g. heat pump
	Additional producers in the system e. g. wind power plant
	Terminating resistor R 120 Ohm

A maximum of 4 Modbus participants can be connected to the Modbus terminal.

IMPORTANT!
Only one primary meter, one battery and one Ohmpilot can be connected per inverter. Due to the high data transfer of the battery, the battery occupies 2 participants.

Example:

Input	Quantity Primary meter	Quantity Secondary meter
Modbus	1	0
	1	1
	1	2
	1	3

If several Fronius Smart Meters are installed, a separate address must be set for each one (see Setting the address of the Fronius Smart Meter on page (→)). The primary meter is always assigned address 1. All the other meters are numbered consecutively with the address range from 2 to 14. Different Fronius Smart Meter power categories can be used in combination.

IMPORTANT!
Use max. 3 secondary meters in the system. To avoid interference, it is recommended to install the terminating resistors according to chapter Terminating resistors on page (→).

Location of the primary meter in the consumption branch. *Terminating resistor R 120 Ohm

Location of the primary meter at the feed-in point. *Terminating resistor R 120 Ohm

The following must be observed in a multi-meter system:

Only assign each Modbus address once.
Terminating resistors must be positioned individually for each channel.

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

IMPORTANT!
Only one primary meter, one battery and one Ohmpilot can be connected per inverter. Due to the high data transfer of the battery, the battery occupies 2 participants.

Example 1:

Input	Quantity Primary meter	Quantity Secondary meter
Modbus 0 (M0)	0	4
	0	2
	0	1
Modbus 1 (M1)	1	3

Example 2:

Input	Quantity Primary meter	Quantity Secondary meter
Modbus 0 (M0)	1	3
Modbus 1 (M1)	0	4
	0	2
	0	1

If several Fronius Smart Meters are installed, a separate address must be set for each one (see Setting the address of the Fronius Smart Meter on page (→)). The primary meter is always assigned address 1. All the other meters are numbered consecutively with the address range from 2 to 14. Different Fronius Smart Meter power categories can be used in combination.

IMPORTANT!
Use max. 7 secondary meters in the system. To avoid interference, it is recommended to install the terminating resistors according to chapter Terminating resistors on page (→).

Location of the primary meter in the consumption branch. *Terminating resistor R 120 Ohm

Location of the primary meter at the feed-in point. *Terminating resistor R 120 Ohm

The following must be observed in a multi-meter system:

Connect the primary meter and the battery to different channels (recommended).
The remaining Modbus participants must be distributed equally.
Only assign each Modbus address once.
Terminating resistors must be positioned individually for each channel.

A graphic view of the menu structure can be found in the User Information that is supplied as standard.

Name	Event	Function
Prog	1 x	Increases the set value
Page	1 x	Moves the cursor
Enter	1 x	Confirms the entry

1Press "Prog" and "Page" at the same time to enter the code.

2Enter the password "2633". Increase the value with "Prog" and change to the next digit with "Page".

3Press "Prog" and "Page" at the same time again to switch to the menu item "Addr" (address).

4Set the relevant address.

Permissible values: 1 - 14

NOTE!

Only configure the menu items "Password" and "Address".

The parameter „Node A“ is preset and must not be changed.

Symbol	Name	Event	Function
	Page	1 x	Continue to the next screen
	Page	5 seconds	Reset value / change menu

The following illustrations are symbolic representations. The values displayed vary for each individual unit.

Display	Description
	Total active energy consumed
	Total reactive energy
	Total active energy produced Press arrow key for 5 seconds to reset the value
	Partial reactive energy Press arrow key for 5 seconds to reset the value
	Maximum effective power average value Press arrow key for 5 seconds to reset the value
	Effective power average value
	Voltage and current menu Press the arrow key and wait 2 seconds until the next display (current phase L1) appears.
	Current phase L1
	Current phase L2
	Current phase L3
	Chained voltage phase L1-L2
	Chained voltage phase L2-L3
	Chained voltage phase L1-L3
	Effective power
	Reactive power
	Apparent power

IMPORTANT! Settings under the "Meter" menu item are only to be made by trained and qualified personnel!

The service password must be entered in order to access the "Meter" menu item.

Three-phase or single-phase Fronius Smart Meters can be used. In both cases, the selection is made under the "Fronius Smart Meter" item. The Fronius Datamanager automatically identifies the meter type.

A primary meter and several secondary meters can be selected. The primary meter needs to be configured first before a secondary meter can be selected.

IMPORTANT! Settings under the "Meter" menu item are only to be made by trained and qualified personnel!

The service password must be entered in order to access the "Meter" menu item.

A primary meter and several secondary meters can be selected. The primary meter needs to be configured first before a secondary meter can be selected.

IMPORTANT! Settings under the "Meter" menu item are only to be made by trained and qualified personnel!

The service password must be entered in order to access the "Meter" menu item.

A primary meter and several secondary meters can be selected. The primary meter needs to be configured first before a secondary meter can be selected.

Access point:

Navigate to settings (Setup).

Navigate to WiFi Access Point.

Network and password are displayed.

Activate WiFi Access Point.

1Select the "Setup" menu on the inverter display and enable the "Wi-Fi Access Point".

2Establish the connection to the inverter in the network settings (the inverter is displayed with the name "Fronius_240.XXXXXX").

3Password: Enter 12345678 and confirm.

4In the browser address bar, enter and confirm the IP address http://192.168.250.181 and confirm.

The Fronius Datamanager start page is displayed.

LAN:

1Connect the Fronius Datamanager and computer to a LAN cable.

2Place the Fronius Datamanager IP switch in the 'A' position.

3In the browser address bar, enter and confirm the IP address http://169.254.0.180 and confirm.

1Go to the Fronius Datamanager website.

- Open the web browser.

- In the address bar of the browser, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or the host and domain name of the Fronius Datamanager and confirm.

- The Fronius Datamanager website will be displayed.

2Click the "Settings" button.

3Log in to the login area with the "service" user and the service password.

4Call up the "Meter" menu area.

5Select the primary meter from the drop-down list.

6Click the "Settings" button.

7In the pop-up window, set the position of the meter (feed-in point or consumption point). For more information on the position of the Fronius Smart Meter, see Positioning on page (→).

8Click the "Ok" button when the OK status is displayed. If the Timeout status is displayed, try again.

9Click the

button to save the settings.

The Fronius Smart Meter is configured as a primary meter.

The "Current general view" menu area displays the power of the PV modules, self-consumption, the energy fed into the grid and the battery charge (if available).

1Go to the Fronius Datamanager website.

- Open the web browser.

- In the address bar of the browser, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or the host and domain name of the Fronius Datamanager and confirm.

- The Fronius Datamanager website will be displayed.

2Click the "Settings" button.

3Log in to the login area with the "service" user and the service password.

4Call up the "Meter" menu area.

5Select the secondary meter from the drop-down list.

6Click the "Add" button.

7Enter the name of the secondary meter in the "Name" input field.

8Enter the previously assigned address in the "Modbus address" input field.

9Add meter description.

10Click the

button to save the settings.

The Fronius Smart Meter is configured as a secondary meter.

IMPORTANT! Settings under the "Device configuration" menu item are only to be made by trained and qualified personnel!

The technician password must be entered in order to access the "Device configuration" menu item.

Three-phase or single-phase Fronius Smart Meters can be used. In both cases, the selection is made under the "Components" menu area. The meter type is determined automatically.

A primary meter and several secondary meters can be selected. The primary meter needs to be configured first before a secondary meter can be selected.

IMPORTANT! Settings under the "Device configuration" menu item are only to be made by trained and qualified personnel!

The technician password must be entered in order to access the "Device configuration" menu item.

Three-phase or single-phase Fronius Smart Meters can be used. In both cases, the selection is made under the "Components" menu area. The meter type is determined automatically.

A primary meter and several secondary meters can be selected. The primary meter needs to be configured first before a secondary meter can be selected.

WLAN:

1Open the access point by touching the sensor

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

4In the browser address bar, enter and confirm the IP address 192.168.250.181. The installation wizard is opened.

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

6Add system components in Solar.web and start up the PV system.

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

Ethernet:

1Establish a connection to the inverter (LAN1) with a network cable (CAT5 STP or higher).

2Open the access point by touching the sensor once

→ Communication LED: flashes blue.

3In the browser address bar, enter and confirm IP address 169.254.0.180. The installation wizard is opened.

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

5Add 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.

1Access the inverter website.

- Open the web browser.

- In the address bar of the browser, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or the host and domain name of the inverter and confirm.

- The inverter website is displayed.

2Click the "Device configuration" button.

3Log in to the login area with the "Technician" user and the technician password.

4Access the "Components" menu area.

5Click the "Add component" button.

6In the "Position" drop-down list, set the position of the meter (feed-in point or consumption point). For more information on the position of the Fronius Smart Meter, see Positioning on page (→).

7Click the "Add" button.

8Click the "Save" button to save the settings.

The Fronius Smart Meter is configured as a primary meter.

1Access the inverter website.

- Open the web browser.

- In the address bar of the browser, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or the host and domain name of the inverter and confirm.

- The inverter website is displayed.

2Click the "Device configuration" button.

3Log in to the login area with the "Technician" user and the technician password.

4Access the "Components" menu area.

5Click the "Add component" button.

6In the "Position" drop-down list, select the meter type (producer/load meter).

7Enter the previously assigned address in the "Modbus address" input field.

8Enter the name of the meter in the "Name" input field.

9In the "Category" drop-down list, select the category (producer or load).

10Click the "Add" button.

11Click the "Save" button to save the settings.

The Fronius Smart Meter is configured as a secondary meter.

Modbus transmission speed: 9600 baud
Parity bit: None
Software version: Datamanager 3.7.2 / Energypackage 1.3.3

Input
Three-phase nominal voltage Operating range	400 - 415 V 363 to 457 V
Single-phase nominal voltage Operating range	230 - 240 V 210 to 264 V
Voltage transformer ratio (kVT)	1...1500.0 e.g. VT 20000/400V kVT = 50 For direct connection: kVT = 1
Self-consumption - voltage path (max. voltage)	4.5 VA (1.85 W) for 440 V
Nominal frequency Tolerance	50 - 60 Hz 47 to 63 Hz
Nominal current, lb	1 A + 5 A
Maximum current, Imax	6 A
Starting current	20 mA
Current transformer ratio (kCT)	1...9,999 e.g. TC 800/5A kCT = 160
Short-time overload (EN/IEC 62053-21, EN/IEC 62053-23)	20 lmax / 0.5 s
Self-consumption - current path (max. current)	0.3 W for phase
Maximum value kVT x kCT	5,000,000 (CT/1A) or 1,000,000 (CT/5A)
Current distortion factor	In acc. with EN/IEC 62053-21
Power factor Operating range (EN/IEC 62053-21, EN/IEC 62053-23)	Active cosφ 0.5 ind to 0.8 cap, Reactive sinφ 0.5 ind to 0.5 cap

Energy
Max. display	As per table
Resolution	As per table
LED indicator	1 pulse / 0.1 Wh
Active energy accuracy (EN/IEC 62053-21)	Class 1
Reactive energy accuracy (EN/IEC 62053-23)	Class 2
Response time after switch-on (EN/IEC 62053-21, EN/IEC 62053-23)	< 5 s

kCT x kVT	Maximum display		Resolution
1 to 9.9	9 9 9 9 9 9 . 9 9	kWh / kvarh	10 Wh / varh
10 to 99.9	9 9 9 9 9 9 9 . 9	kWh / kvarh	100 Wh / varh
100 to 999.9	9 9 9 9 9 9 9 9	kWh / kvarh	1 kWh / varh
1000 to 9999.9	9 9 9 9 9 9 . 9 9	MWh / kvarh	10 kWh / varh
≥ 10000	9 9 9 9 9 9 9 . 9	MWh / kvarh	100 kWh / varh

Average power
Measured variable	Effective power
Calculation	Average value over set period of time
Integration time	5 / 8 / 10 / 15 / 20 / 30 / 60 minutes

Operating hours counter
Operating hours counter	Hours and minutes
Resolution	7-digit (5 hours + 2 minutes)
Max. display	99,999 h 59 min
Counting start	3-phase effective power
Programmable values	0.10 to 50% Pn
3-phase effective power	In acc. with 400 V 5 A - 3464 W
Operating hours counter reset	Accessible via keypad or locked

Output
Energy pulse Pulse output compatible with S0 EN/IEC 62053-31 Optical relay with NO contact SPST-NO, floating
Contact load	110 V DC/AC - 50 mA
Assignable energy	Active or reactive energy
Pulse value	10 Wh (Varh) - 100 Wh (Varh) - 1 kWh (kVarh) - 10 kWh (kVarh) - 100 kWh (kVarh) - 1000 kWh (kVarh)
Pulse duration	50 - 100 - 150 - 200 - 300 - 400 - 500 ms
RS485 communication Electrically isolated from input and auxiliary voltage
Standard	RS485 - 3 conductors
Transmission	Serial, asynchronous
Protocol	Modbus RTU
Addresses	1 to 255
Number of bits	8
Stop bit	1
Parity bit	None - even - odd
Baud rate	4800 - 9600 - 19200 bit/s
Response time	≤ 200 ms

Insulation (EN/IEC 62052-11, 62053-21)
Installation category	III
Pollution level	2
Insulation voltage	300 V phase-neutral
Impulse withstand voltage Test circuit	5 kV 1.2/60 µs Voltage input, current input, pulse output, communication
Test voltage Test circuit	2.75 kV r.m.s. 50 Hz / 1 min Voltage input, current input, pulse output, communication
Test voltage Test circuit	4 kV r.m.s. 50 Hz / 1 min All circuits and earth

Electromagnetic compatibility
Test in acc. with EN/IEC 62052-11

Operating conditions
Reference temperature	23 °C (±2 °C)
Operating range	-5 to 55 °C
Temperature limit for storage and transport	-25 to 70 °C
Tropical model
Max. power loss (for thermal dimensioning of the switch cabinet)	≤ 2.8 W

Housing
Housing	4 modules according to DIN 43880
Sealable front and terminal cover
Connection	Screw connection
Mounting	Can be snapped onto 35 mm DIN rail
Housing material	Polycarbonate, self-extinguishing
Degree of protection (EN 60529)	IP54 front, IP20 connections
Weight	260 grams

Screw terminals
Measuring input
Wire (rigid)	Min. 0.05 mm² / max. 4 mm²
Wire (flexible)	Min. 0.05 mm² / max. 2.5 mm²
Recommended torque	0.5 Nm / max. 0.8 Nm
Output
Wire (rigid)	Min. 0.05 mm² / max. 4 mm²
Wire (flexible)	Min. 0.05 mm² / max. 2.5 mm²
Recommended torque	0.5 Nm / max. 0.8 Nm

Modbus transmission speed: 9600 baud
Parity bit: None
Software version: Datamanager 3.7.2 / Energypackage 1.3.3

Input
Three-phase nominal voltage Operating range	400 - 415 V 363 to 457 V
Single-phase nominal voltage Operating range	230 - 240 V 210 to 264 V
Voltage transformer ratio (kVT)	1...1500.0 e.g. VT 20000/400V kVT = 50 For direct connection: kVT = 1
Self-consumption - voltage path (max. voltage)	4.5 VA (1.85 W) for 440 V
Nominal frequency Tolerance	50 - 60 Hz 47 to 63 Hz
Nominal current, lb	1 A + 5 A
Maximum current, Imax	6 A
Starting current	20 mA
Current transformer ratio (kCT)	1...9,999 e.g. TC 800/5A kCT = 160
Short-time overload (EN/IEC 62053-21, EN/IEC 62053-23)	20 lmax / 0.5 s
Self-consumption - current path (max. current)	0.3 W for phase
Maximum value kVT x kCT	5,000,000 (CT/1A) or 1,000,000 (CT/5A)
Current distortion factor	In acc. with EN/IEC 62053-21
Power factor Operating range (EN/IEC 62053-21, EN/IEC 62053-23)	Active cosφ 0.5 ind to 0.8 cap, Reactive sinφ 0.5 ind to 0.5 cap

Energy
Max. display	As per table
Resolution	As per table
LED indicator	1 pulse / 0.1 Wh
Active energy accuracy (EN/IEC 62053-21)	Class 1
Reactive energy accuracy (EN/IEC 62053-23)	Class 2
Response time after switch-on (EN/IEC 62053-21, EN/IEC 62053-23)	< 5 s

kCT x kVT	Maximum display		Resolution
1 to 9.9	9 9 9 9 9 9 . 9 9	kWh / kvarh	10 Wh / varh
10 to 99.9	9 9 9 9 9 9 9 . 9	kWh / kvarh	100 Wh / varh
100 to 999.9	9 9 9 9 9 9 9 9	kWh / kvarh	1 kWh / varh
1000 to 9999.9	9 9 9 9 9 9 . 9 9	MWh / kvarh	10 kWh / varh
≥ 10000	9 9 9 9 9 9 9 . 9	MWh / kvarh	100 kWh / varh

Average power
Measured variable	Effective power
Calculation	Average value over set period of time
Integration time	5 / 8 / 10 / 15 / 20 / 30 / 60 minutes

Operating hours counter
Operating hours counter	Hours and minutes
Resolution	7-digit (5 hours + 2 minutes)
Max. display	99,999 h 59 min
Counting start	3-phase effective power
Programmable values	0.10 to 50% Pn
3-phase effective power	In acc. with 400 V 5 A - 3464 W
Operating hours counter reset	Accessible via keypad or locked

Output
Energy pulse Pulse output compatible with S0 EN/IEC 62053-31 Optical relay with NO contact SPST-NO, floating
Contact load	110 V DC/AC - 50 mA
Assignable energy	Active or reactive energy
Pulse value	10 Wh (Varh) - 100 Wh (Varh) - 1 kWh (kVarh) - 10 kWh (kVarh) - 100 kWh (kVarh) - 1000 kWh (kVarh)
Pulse duration	50 - 100 - 150 - 200 - 300 - 400 - 500 ms
RS485 communication Electrically isolated from input and auxiliary voltage
Standard	RS485 - 3 conductors
Transmission	Serial, asynchronous
Protocol	Modbus RTU
Addresses	1 to 255
Number of bits	8
Stop bit	1
Parity bit	None - even - odd
Baud rate	4800 - 9600 - 19200 bit/s
Response time	≤ 200 ms

Insulation (EN/IEC 62052-11, 62053-21)
Installation category	III
Pollution level	2
Insulation voltage	300 V phase-neutral
Impulse withstand voltage Test circuit	5 kV 1.2/60 µs Voltage input, current input, pulse output, communication
Test voltage Test circuit	2.75 kV r.m.s. 50 Hz / 1 min Voltage input, current input, pulse output, communication
Test voltage Test circuit	4 kV r.m.s. 50 Hz / 1 min All circuits and earth

Electromagnetic compatibility
Test in acc. with EN/IEC 62052-11

Operating conditions
Reference temperature	23 °C (±2 °C)
Operating range	-5 to 55 °C
Temperature limit for storage and transport	-25 to 70 °C
Tropical model
Max. power loss (for thermal dimensioning of the switch cabinet)	≤ 2.8 W

Housing
Housing	4 modules according to DIN 43880
Sealable front and terminal cover
Connection	Screw connection
Mounting	Can be snapped onto 35 mm DIN rail
Housing material	Polycarbonate, self-extinguishing
Degree of protection (EN 60529)	IP54 front, IP20 connections
Weight	260 grams

Screw terminals
Measuring input
Wire (rigid)	Min. 0.05 mm² / max. 4 mm²
Wire (flexible)	Min. 0.05 mm² / max. 2.5 mm²
Recommended torque	0.5 Nm / max. 0.8 Nm
Output
Wire (rigid)	Min. 0.05 mm² / max. 4 mm²
Wire (flexible)	Min. 0.05 mm² / max. 2.5 mm²
Recommended torque	0.5 Nm / max. 0.8 Nm

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www.fronius.com/solar/warranty

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Fronius Smart Meter 50kA-3 Operating Instructions

Safety rules

Explanation of safety notices

DANGER!

WARNING!

CAUTION!

NOTE!

Explanation of safety notices

DANGER!

WARNING!

CAUTION!

NOTE!

General

Environmental conditions

Qualified personnel

Copyright

Data protection

General

Device description

CAUTION!

Device description

CAUTION!

Symbols on the device

Positioning

Installation

Checklist for installation

Checklist for installation

Installation

Protective circuit

Cabling

WARNING!

Selection criteria for current transformers

Connecting the current transformers

Suitable voltage transformers

Connecting the data communication cable to the inverter

NOTE!

Terminating resistors - Explanation of symbols

Terminating resistors

Setting the transformation ratio of the current and voltage transformers on the Fronius Smart Meter

Multi-meter system - Explanation of symbols

Modbus participants - Fronius SnapINverter

Multi-meter system - Fronius SnapINverter

Modbus participants - Fronius GEN24

Multi-meter system - Fronius GEN24 inverter

Menu structure

Setting the address of the Fronius Smart Meter

NOTE!

Reading the Fronius Smart Meter operating parameters

Start-up

Fronius SnapINverter

General

Fronius SnapINverter

General

General

Connecting to the Fronius Datamanager

Configuring the Fronius Smart Meter as the primary meter

Configuring the Fronius Smart Meter as a secondary meter

Fronius GEN24 inverter

General

General

Installation using the web browser

Configuring the Fronius Smart Meter as the primary meter

Configuring the Fronius Smart Meter as a secondary meter

Technical data

Technical data

Technical data

Fronius manufacturer's warranty