Fronius Smart Meter WR Operating instructions

1. Safety rules

1. Safety rules

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

Application notes

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

Software

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

Example: Click Save.

Instructions for action

1. Safety rules

• serious or fatal injury to the operator or a third party,
• and damage to the device and other material assets belonging to the operating company.

• be suitably qualified,
• have knowledge of and experience in dealing with electrical installations and
• have fully read and precisely followed these Operating Instructions.

The Operating Instructions must always be kept on hand wherever the device is being used. In addition to the Operating Instructions, all applicable local rules and regulations regarding accident prevention and environmental protection must also be followed.

• must be kept in a legible state
• must not be damaged/marked
• must not be removed
• must not be covered, pasted, or painted over.

The terminals can reach high temperatures.

• serious or fatal injury to the operator or a third party,
• and damage to the device and other material assets belonging to the operating company.

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

Never bypass or disable protection devices.

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

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

Your personal safety is at stake!

1. Safety rules

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

1. Safety rules

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

All cables must be secured, undamaged, insulated, and adequately dimensioned. Loose connections, damaged or under-dimensioned cables must be repaired immediately by an authorized specialist company.

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

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

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

Replace any damaged components or have them replaced immediately.

1. Safety rules

Copyright of these operating instructions remains with the manufacturer.

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

1. Safety rules

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

1. Safety rules

FCC
This device corresponds to the limit values for a digital device of class B in accordance with Part 15 of the FCC regulations. The limit values should provide adequate protection against harmful interference in homes. This device creates and uses high frequency energy and can interfere with radio communications when not used in accordance with the instructions. However, there is no guarantee against interference occurring in a particular installation.
If this device interferes with radio or television reception when turning the device on and off, it is recommended that the user solve this with one or more of the following measures:

• adjust or reposition the receiving antenna
• increase the distance between the device and the receiver
• connect the device to another circuit, which does not include the receiver
• for further support, please contact the retailer or an experienced radio/TV technician.

Industry Canada RSS
The device corresponds to the license-free Industry Canada RSS standards. Operation is subject to the following conditions:
(1) The device may not cause harmful interference
(2) The device must accept any interference received, including interference that may cause undesired operation.

1. Safety rules

Waste electrical and electronic equipment must be collected separately and recycled in an environmentally sound manner in accordance with the European Directive and national law. Used equipment must be returned to the distributor or through a local authorized collection and disposal system. Proper disposal of the used device promotes sustainable recycling of resources and prevents negative effects on health and the environment.

• Collect separately
• Observe local regulations
• Crush cardboard boxes

The Fronius Smart Meter is a bidirectional electricity meter for optimizing self-consumption and recording a household's load characteristic curve. Together with a Fronius inverter or Fronius Datamanager 2.0 and a Fronius data interface, the Fronius Smart Meter allows you to view your own power consumption. The meter measures the energy flow to the loads or to the public grid and forwards the information to the Fronius inverter or Fronius Datamanager 2.0 via the Modbus RTU/RS485 interface.

1. General

The Fronius Smart Meter is a bidirectional electricity meter for optimizing self-consumption and recording a household's load characteristic curve. Together with a Fronius inverter or Fronius Datamanager 2.0 and a Fronius data interface, the Fronius Smart Meter allows you to view your own power consumption. The meter measures the energy flow to the loads or to the public grid and forwards the information to the Fronius inverter or Fronius Datamanager 2.0 via the Modbus RTU/RS485 interface.

1. General

Safety symbols:
	To avoid electric shocks: Do not dismantle or modify the device Do not allow any water to enter the device Do not allow any foreign substances or material to enter the device Do not touch any connections directly
	RCM Symbol - The product complies with the Australian laws.

1. General

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

Positioning at the feed-in point
The positioning of the Fronius Smart Meter at the feed-in point.

Positioning at the consumption point
The positioning of the Fronius Smart Meter at the consumption point.

1. General

1. Installation

1. Installation

The Fronius Smart meter has two mounting holes spaced 5.4 in. (137 mm) apart (center-to-center). These mounting holes are normally obscured by the detachable screw terminals. Remove the screw terminals to mark the hole positions and mount the meter.

Self-tapping sheet metal screws are included. Do not over-tighten the screws, as long-term stress on the case can cause cracking.

1. Installation

The Fronius Smart Meter is considered “permanently connected equipment“ and requires a disconnect means (circuit breaker, switch or disconnect) and overcurrent protection (fuse or circuit breaker).

The Fronius Smart Meter only draws 10-30 mA, so the rating of any switches, disconnects, fuses and / or circuit breakers is determined by the wire gauge, the mains voltage and the current interrupting rating required.

• The switch, disconnect or circuit breaker must be within sight and as close as practicable to the Fronius Smart Meter and must be easy to operate.
• Use circuit breakers or fuses rated for 20 amps or less.
• Use ganged circuit breakers when monitoring more than one line voltage.
• The circuit breakers or fuses must protect the mains terminals labeled L1, L2 and L3. In the rare cases where neutral has overcurrent protection, the overcurrent protection device must interrupt both neutral and ungrounded conductors simultaneously.
• The circuit protection / disconnect system must meet IEC 60947-1 and IEC 60947-3, as well as all national and local electrical codes.

1. Installation

• Always turn off power before connecting the line voltage inputs to the Fronius Smart Meter.
• For the line voltage wires, 16 to 12 AWG stranded wire, type THHN, MTW or THWN, 600 V are recommended.
• Do not place more than one wire per screw terminal; use separate wire nuts or terminal blocks if needed.
• Verify that the line voltages match the line-to-line and line-to-neutral values printed in the white box on the front label.

Connect each conductor to the appropriate phase; also connect ground and neutral (if applicable). The neutral connection “N“ is not required on delta models but we recommend connecting it to ground if neutral is not present.

The screw terminal can handle wire up to 12 AWG. Connect each voltage line to the green terminal block as shown in the following figures. After the voltage lines have been connected, make sure both terminal blocks are fully seated in the Fronius Smart Meter.

When power is first applied, check that the LEDs behave normally. If you see LEDs flashing red-green-red-green, the voltage is too high for this model, so disconnect the power switch immediately!

Single-Phase Three-Wire (Mid-Point Neutral) / Two-Phase Australia

Single-Phase Two-Wire without Neutral

Single-Phase Two-Wire with Neutral

Three-Phase Four-Wire Wye

Three-Phase Three-Wire Delta without Neutral

Three-Phase Four-Wire Stinger

Three-Phase Two-Wire Corner Grounded Delta

1. Installation

The current transformer must generate 333.33 millivolts AC at rated current. See the current transformer data sheets for CT ratings (Fronius CT, 41,0010,0104 / 41,0010,0105 / 41,0010,0232).

• Do not use ratio or current output such as 1 amp or 5 amp output models!
• See the CT data sheets for the maximum input current ratings.
• Be careful to match the CTs with the voltage phases. Make sure the CT L1 is measuring the current on the same phase being monitored by the L1 voltage input and the same for phases L2 and L3. Use the supplied colored labels or colored tape to identify the CT leads.
• To minimize current measurement noise, avoid extending the CT wires, especially in noisy environments. If it is necessary to extend the wires, use twisted pair cable 22 to 14 AWG, rated for 300 V or 600 V (not less than the service voltage) and shielded if possible
• Make sure the CTs face the correct direction. An arrow might indicate either the load or the source (public grid)
• If you see strange readings on unused phases, jumper the unused CT inputs: for each unused CT, connect a short cable from the terminal marked with a white dot to the terminal marked with a black dot.

Install the CTs around the conductor to be measured and connect the CT leads to the Fronius Smart Meter. Always turn off power before disconnecting any live conductors. Put the line conductors through the CTs as shown in the previous section.

CTs are directional. If they are mounted backwards or with their white and black wires swapped the measured power will be negative. The status LEDs indicate negative measured power by flashing red.

Split-core CTs can be opened for installation around the conductor. A nylon cable tie may be secured around the CT to prevent inadvertent opening.

1. Installation

The device can be used for power control systems in accordance with the UL 3141 standard. The additionally required current transformers must comply with the specifications of the UL 2808 standard.

1. Installation

The current transformers connect to the six position black screw terminal block. Connect the white and black CT wires to the Fronius Smart Meter terminals marked CT L1, CT L2 and CT L3. Excess length may be trimmed from the wires if desired. Connect each CT with the white wire aligned with the white dot on the label and the black wire aligned with the black dot. Note the order in which the phases are connected, as the line voltage phases must match the current phases for accurate power measurement.

1. Installation

Fronius SnapINveter:
Connect the data communication ports 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 D- to D-.

2Connect D+ to D+.

3Connect - to -.

Fronius GEN24 inverter:
Connect the data communication ports 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 D- to M1-.

2Connect D+ to M1+.

3Connect - to GND.

• Use a CAT5 type cable or higher.
• For data lines belonging together (D+, D- and M1+, M1-) use a twisted pair of cables.
• If the output cables are close to the mains wiring, use wires or cables rated at 300 V to 600 V (never less than the operating voltage).
• Use double insulated or sheathed output cables when near bare conductors.
• Use shielded twisted pair cables to avoid interference.
• The outputs of the Fronius Smart Meter are galvanically isolated from dangerous voltages.

1. Installation

The Fronius Smart Meter must be connected to the Fronius Datamanager. If only one Fronius Smart Meter is installed, the Modbus Address is 1.

Examples

Modbus Adress 1
DIP Switch	1	2	3	4	5	6
Position	1	0	0	0	0	0

Modbus Adress 2
DIP Switch	1	2	3	4	5	6
Position	0	1	0	0	0	0

Modbus Adress 3 (value 1 + 2 = 3)
DIP Switch	1	2	3	4	5	6
Position	1	1	0	0	0	0

Modbus Adress 4
DIP Switch	1	2	3	4	5	6
Position	0	0	1	0	0	0

Modbus Adress 7 (value 1 + 2 + 4 = 7)
DIP Switch	1	2	3	4	5	6
Position	1	1	1	0	0	0

Modbus Adress 20 (value 4 + 16 = 20)
DIP Switch	1	2	3	4	5	6
Position	0	0	1	0	1	0

1. Installation

	Inverter in the system e.g. Fronius Primo GEN24 208-240
	Meter - Fronius Smart Meter WR Terminating resistor is integrated in the meter.
	Fronius or third-party device, connection via Modbus RTU e.g. Fronius Ohmpilot, battery, etc.
	Termination resistance R 120 Ohm

1. Installation

The system might work without terminating resistors. Due to interferences, the use of terminating resistors according to the following schemes are recommended.

Activate the Fronius Smart Meter terminating resistor (R 120 Ohm) by switching pin 7 to ON (1).

1. Installation

Select the baud rate by setting DIP switch position 8 (see below). The change will take effect immediately.

Baud Rate	DIP Switch 8
9600 (default)	0 (OFF)
38400	1 (ON)

1. Installation

	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 metering data relevant for the billing of electricity quantities (primarily the kilowatt hours of grid purchases and grid power feed). On the basis of the data relevant for billing, the electricity retailer invoices a grid purchase and the purchaser of the surplus pays for the grid power feed.
	Primary meter Records the load curve of the system and makes the measured data available for energy profiling in Fronius Solar.web. The primary meter also regulates the dynamic feed-in control.
	Secondary meter Records the load curve of individual loads and producers (e.g. washing machine, lights, television, heat pump, etc.) in the consumption branch and makes the measured data available for energy profiling in Fronius Solar.web.
	Modbus RTU, Third-party device e.g. Fronius Ohmpilot, 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

1. Installation

A maximum of 4 Modbus stations can be connected to the Modbus connection 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 subscribers.

Example:

Input	Battery	Fronius Ohmpilot	Number of primary meters	Number of secondary meters
Modbus			1	0
			1	1
			1	2
			1	3

1. Installation

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

IMPORTANT!
Use no more than 3 secondary meters in the system. To avoid interference, it is recommended to install the terminating resistors according to the chapter Terminating Resistors on page (→).

Position of the primary meter in the consumption branch. *Termination resistor R 120 Ohm

Position of the primary meter at the feed-in point. *Termination resistor R 120 Ohm

• Each Modbus address is assigned only once.
• Place the terminating resistors individually for each channel.

1. Installation

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

Example 1:

Input	Battery	Fronius Ohmpilot	Number of primary meters	Number of secondary meters
Modbus 0 (M0)			0	4
			0	2
			0	1
Modbus 1 (M1)			1	3

Example 2:

Input	Battery	Fronius Ohmpilot	Number of primary meters	Number of secondary meters
Modbus 0 (M0)			1	3
Modbus 1 (M1)			0	4
			0	2
			0	1

1. Installation

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

IMPORTANT!
Use no more than Use 7 secondary meters in the system. To avoid interference, it is recommended to install the terminating resistors according to the chapter Terminating Resistors on page (→).

Position of the primary meter in the consumption branch. *Termination resistance R 120 Ohm

Position of the primary meter at the feed-in point. *Termination resistance R 120 Ohm

• Connect the primary meter and the battery to different channels (recommended).
• Distribute the remaining Modbus participants evenly.
• Each Modbus address is assigned only once.
• Place the terminating resistors individually for each channel.

IMPORTANT! Settings in the "Meter" menu item may only be entered by staff trained to do so!

The service password must be entered for the "Meter" menu item.

Three-phase or one-phase Fronius Smart Meters may be used. In both cases, selection is made via the "Fronius Smart Meter" item. The Fronius Datamanager automatically detects the meter type.

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

1. Commissioning

IMPORTANT! Settings in the "Meter" menu item may only be entered by staff trained to do so!

The service password must be entered for the "Meter" menu item.

Three-phase or one-phase Fronius Smart Meters may be used. In both cases, selection is made via the "Fronius Smart Meter" item. The Fronius Datamanager automatically detects the meter type.

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

1. Commissioning
2. Fronius SnapINverter

IMPORTANT! Settings in the "Meter" menu item may only be entered by staff trained to do so!

The service password must be entered for the "Meter" menu item.

Three-phase or one-phase Fronius Smart Meters may be used. In both cases, selection is made via the "Fronius Smart Meter" item. The Fronius Datamanager automatically detects the meter type.

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

1. Commissioning
2. Fronius SnapINverter

Access Point:

Activate the WiFi access point of the inverter:

1.

Navigate to settings (Setup).

2.

Navigate to WiFi Access Point.

✓Network and password are displayed.

3.

Activate WiFi access point with the Enter    key.

1Select the Setup menu on the inverter display.

2Navigate to WiFi Access Point.

✓Network (SS) and password (PW) are displayed.

3Activate the WiFi Access Point with the Enter    key.

LAN:

1. Commissioning
2. Fronius SnapINverter

1Call up the Fronius Datamanager 2.0 website.

- Open web browser.

- In the browser's address bar, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or enter and confirm the host and domain name of the Fronius Datamanager 2.0.

- The Fronius Datamanager 2.0 website appears.

2Click on the Settings button.

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

4Call up the Meter menu area.

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

6Click on the Settings button.

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

8Set the converter ratio and the network type.

9Click the OK button when the status OK is displayed. If the timeout status is displayed, repeat the operation.

10Click on the button    to save the settings.

The Fronius Smart Meter is configured as a primary meter.

In the menu area Current Total View, the power of the PV modules, the self-consumption, the grid power feed and battery charging (if available) are displayed.

1. Commissioning
2. Fronius SnapINverter

1Call up the Fronius Datamanager 2.0 website.

- Open web browser.

- In the browser's address bar, enter the IP address (IP address for WLAN: 192.168.250.181, IP address for LAN: 169.254.0.180) or enter and confirm the host and domain name of the Fronius Datamanager 2.0.

- The Fronius Datamanager 2.0 website appears.

2Click on the Settings button.

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

4Call up the Meter menu area.

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

6Click on 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.

9Set the converter ratio and the network type.

10Complete the description of the meter.

11Click on the button    to save the settings.

The Fronius Smart Meter is configured as a secondary meter.

1. Commissioning

IMPORTANT! Settings in the "Device configuration" menu item may only be entered by staff trained to do so!

The service password must be entered for the "Device configuration" menu item.

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

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

1. Commissioning
2. Fronius GEN24 inverter

IMPORTANT! Settings in the "Device configuration" menu item may only be entered by staff trained to do so!

The service password must be entered for the "Device configuration" menu item.

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

One primary meter and several secondary meters can be selected. The primary meter must be configured before a secondary meter can be chosen.

1. Commissioning
2. Fronius GEN24 inverter

WLAN:

1Open the access point by touching the sensor   

✓Communications LED flashes blue.

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

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

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

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

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

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

Ethernet:

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

2Open the access point by touching the sensor once   

✓Communications LED flashes blue.

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

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

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

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

1. Commissioning
2. Fronius GEN24 inverter

The Fronius Smart Meter is configured as a primary meter.

1. Commissioning
2. Fronius GEN24 inverter

The Fronius Smart Meter is configured as a secondary meter.

The three status LEDs on the front of the Fronius Smart Meter can help indicate correct measurements and operation. The “L1”, “L2”, and “L3” on the diagrams indicate the three phases:

Normal Startup
The Fronius Smart Meter displays the following startup sequence whenever power is first applied.

Consuming Power
Any phase with the LEDs flashing green is indicating normal positive power (Import of energy from public grid).
If the inverter or any other power source is not producing power and some minimal power is being used, the LEDs should be flashing green. This is normal, when the inverter is in its 5 minute startup cycle.

No Power
Any phase with a solid green LED indicates no power, but line voltage is present.

No Voltage
Any phase LED that is off indicates no voltage on that phase.

Generating Power
Red flashing indicates negative power for that phase. This is a normal behavior if more power is produced (by the inverter or any other power source) than consumed (Export of energy to the public grid). If no power is produced at all, this might indicate either reversed CT's, swapped CT wires or CT's are not matched with the correct line voltage phase.

Overvoltage Warning
The following indicates that the line voltage is too high for this model. Disconnect power immediately! Check the line voltages and the meter ratings (in the white box on the label).

Meter Not Operating
If none of the LEDs are illuminated, check that the correct line voltages are applied to the meter. If the voltages are correct, call customer service for assistance.

Error
If the meter experiences an internal error, all LEDs will light up red for 3 or more seconds. If you see this happen repeatedly, call customer service for assistance.

1. Operation

The three status LEDs on the front of the Fronius Smart Meter can help indicate correct measurements and operation. The “L1”, “L2”, and “L3” on the diagrams indicate the three phases:

Normal Startup
The Fronius Smart Meter displays the following startup sequence whenever power is first applied.

Consuming Power
Any phase with the LEDs flashing green is indicating normal positive power (Import of energy from public grid).
If the inverter or any other power source is not producing power and some minimal power is being used, the LEDs should be flashing green. This is normal, when the inverter is in its 5 minute startup cycle.

No Power
Any phase with a solid green LED indicates no power, but line voltage is present.

No Voltage
Any phase LED that is off indicates no voltage on that phase.

Generating Power
Red flashing indicates negative power for that phase. This is a normal behavior if more power is produced (by the inverter or any other power source) than consumed (Export of energy to the public grid). If no power is produced at all, this might indicate either reversed CT's, swapped CT wires or CT's are not matched with the correct line voltage phase.

Overvoltage Warning
The following indicates that the line voltage is too high for this model. Disconnect power immediately! Check the line voltages and the meter ratings (in the white box on the label).

Meter Not Operating
If none of the LEDs are illuminated, check that the correct line voltages are applied to the meter. If the voltages are correct, call customer service for assistance.

Error
If the meter experiences an internal error, all LEDs will light up red for 3 or more seconds. If you see this happen repeatedly, call customer service for assistance.

1. Operation

Near the upper left corner, there is a diagnostic Com (communication) LED that can indicate the following:

	A short green flash indicates a valid packet addressed to this device.
	Short yellow flashes or rapid flashing indicate valid packets addressed to different devices.
	A one-second red flash indicates an invalid packet: bad baud rate, bad CRC, noise, bad parity, etc.
	Rapid red/yellow flashing indicates a possible address conflict (two devices with the same DIP switch address).
	Solid red indicates the address is set to zero: an invalid choice.

Normal Operation
Line voltage: 90 - 347 Vac (Line to Neutral), 120 - 600 Vac (Line to Line)
Power factor: 1.0
Frequency: 45 - 65 Hz
Ambient Temperature: 23° C ± 5° C
CT Current: 5% - 100% of rated current
Accuracy: ± 0.5% of reading

1. Technical data

Normal Operation
Line voltage: 90 - 347 Vac (Line to Neutral), 120 - 600 Vac (Line to Line)
Power factor: 1.0
Frequency: 45 - 65 Hz
Ambient Temperature: 23° C ± 5° C
CT Current: 5% - 100% of rated current
Accuracy: ± 0.5% of reading

1. Technical data

Update Rate: 0.1 second. Internally, all measurements are performed at this rate.
Startup Time: ~1.0 second. The Fronius Smart Meter starts communicating this long after AC voltage is applied. Energy measurement starts 50-100 milliseconds after AC is applied.
Default CT Phase Angle Correction: 0.0 degrees.

1. Technical data

The Fronius Smart Meter has an optional neutral connection that may be used for measuring wye circuits. In the absence of neutral, voltages are measured with respect to ground. The Fronius Smart Meter uses the phase L1 (øA) and phase L2 (øB) connections for power.

Over-Voltage Limit: 125% of nominal Vac. Extended over-voltage operation can damage the Fronius Smart Meter and void the warranty.
Over-Current Limit: 120% of rated current. Exceeding 120% of rated current will not harm the Fronius Smart Meter but the current and power will not be measured accurately.
Maximum Surge: 4 kV according to EN 61000-4-5

Power Consumption:

Operating Frequencies: 50 / 60 Hz
Measurement Category: CAT III
Measurement category III is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit breakers, wiring, including cables, bus bars, junction boxes, switches, socket outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to the fixed installation.

The line voltage measurement terminals on the meter are rated for the following CAT III voltages (these ratings appear on the front label):

Current Transformer Inputs:
Nominal Input Voltage (At CT Rated Current): 0.33333 Vac RMS
Absolute Maximum Input Voltage: 5.0 Vac RMS
Input Impedance at 50/60 Hz: 23 k Ohm

1. Technical data

• EN55011:2007, CISPR 11:2009- Class B
• FCC Part 15 - Class B
• EN 61326-1:2012, includes:
  • Harmonics: IEC 61000-3-2
  • Flicker: IEC 61000-3-3
  • Electrostatic Discharge: IEC 61000-4-2
  • Radiated RF Immunity: IEC 61000-4-3
  • Electrical Fast Transient / Burst: IEC 61000-4-4
  • Surge Immunity: IEC 61000-4-5
  • Conducted RF Immunity: IEC 61000-4-6
  • Power Frequency H-Field: IEC 61000-4-8
  • Voltage Dips, Interrupts: IEC 61000-4-11

• UL 61010-1
• CAN/CSA-C22.2 No. 61010-1-12
• IEC 61010-2

1. Technical data

Operating Temperature: -40° C to +80° C (-40° F to 176° F)
Altitude: Up to 3000 m (9842 ft)
Operating Humidity: non-condensing, 5 to 90% relative humidity (RH) up to 40°C, decreasing linearly to 50% RH at 55°C
Pollution: POLLUTION DEGREE 2 - Normally only non-conductive pollution; occasionally, a temporary conductivity caused by condensation must be expected.
Indoor Use: Suitable for indoor use
Outdoor Use: Suitable for outdoor use if mounted inside an electrical enclosure (Hammond Mfg., Type EJ Series) rated NEMA 3R or 4 (IP 66).

1. Technical data

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

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