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Fronius Smart Meter 240V-3 UL
Fronius Smart Meter 480V-3 UL
Fronius Smart Meter 600V-3 UL
Operating Instructions
System monitoring
EN-USESFR
Manual de instrucciones
Supervisión del equipo
Instructions de service
Surveillance des installations
42,0410,2289 006-31082018
2
Dear reader,
Introduction Thank you for the trust you have placed in our company and congratulations on buying this
high-quality Fronius product. These instructions will help you familiarize yourself with the
product. Reading the instructions carefully will enable you to learn about the many different
features your Fronius product has to offer. This will allow you to make full use of its advantages.
Please also note the safety rules to ensure greater safety when using the product. Careful
handling of the product will repay you with years of safe and reliable operation. These are
essential prerequisites for excellent results.
EN-US
Explanation of
Safety Instructions
DANGER! Indicates an immediate danger. Death or serious injury may result if
appropriate precautions are not taken.
WARNING! Indicates a possibly dangerous situation. Death or serious injury may
result if appropriate precautions are not taken.
CAUTION! Indicates a situation where damage or injury could occur. Minor injury
or damage to property may result if appropriate precautions are not taken.
NOTE! Indicates the possibility of flawed results and damage to the equipment.
IMPORTANT! Indicates tips for correct operation and other particularly useful information.
It does not indicate a potentially damaging or dangerous situation.
If you see any of the symbols depicted in the "Safety Rules," special care is required.
3
4
Contents
Safety rules ................................................................................................................................................ 7
General ................................................................................................................................................. 7
Environmental Conditions..................................................................................................................... 7
Qualified Service Engineers.................................................................................................................. 7
Copyright............................................................................................................................................... 8
Backup.................................................................................................................................................. 8
FCC / RSS Compliance ........................................................................................................................ 8
Warning notices on the device.............................................................................................................. 8
Installation.................................................................................................................................................. 9
Installation Checklist ............................................................................................................................. 9
Mounting ............................................................................................................................................... 9
Circuit Protection................................................................................................................................... 10
Line Wiring............................................................................................................................................ 10
Connect Current Transformers ............................................................................................................. 13
CT Wiring.............................................................................................................................................. 14
Connecting the Data Communication Signals to the Fronius Inverter .................................................. 14
Set the address of the Fronius Smart Meter......................................................................................... 14
Terminating Resistors........................................................................................................................... 15
Set Baud Rate....................................................................................................................................... 15
Configuration Web Interface ................................................................................................................. 16
Multi-meter system................................................................................................................................ 16
Operation ................................................................................................................................................... 17
Power Status LEDs............................................................................................................................... 17
Modbus Communication LEDs ............................................................................................................. 18
Technical Data ........................................................................................................................................... 19
Accuracy ............................................................................................................................................... 19
Measurement........................................................................................................................................ 19
Models and Electrical............................................................................................................................ 19
Certifications ......................................................................................................................................... 20
Environmental....................................................................................................................................... 20
Mechanical............................................................................................................................................ 20
Fronius Manufacturer's Warranty.......................................................................................................... 20
EN-US
5
6
Safety rules
General The device has been manufactured using state-of-the-art technology and according to rec-
ognized safety standards. If used incorrectly or misused, however, it can cause
- 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.
All persons involved in start-up operation, 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 kept to 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.
All safety and danger notices on the device
- 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.
EN-US
Environmental
Conditions
Only operate the device when all protection devices are fully functional. If the protection
devices are not fully functional, there is a risk of
- 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 be-
fore the device is turned on.
Your personal safety is at stake!
Operation or storage of the device outside the prescribed area will be deemed as "not in
accordance with the intended purpose." The manufacturer is not responsible for any damages resulting from unintended use.
Qualified Service
Engineers
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 under-dimensioned cables and leads
must be repaired immediately by an authorized specialist.
Maintenance and repair work must only be carried out by authorized personnel.
7
It is impossible to guarantee that externally procured 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.
Copyright Copyright of these operating instructions remains with the manufacturer.
Text and illustrations are technically correct at the time of going to print. The right to make
modifications is reserved. 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 operating instructions, we will be most grateful for your comments.
Backup The user is responsible for backing up any changes made to the factory settings. The man-
ufacturer accepts no liability for any deleted personal settings.
FCC / RSS Compliance
Warning notices
on the device
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.
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.
8
Installation
EN-US
Installation
Checklist
See the sections referenced below for installation details
Turn off power before making line voltage connections
1
Mount the Fronius Smart Meter (see Mounting on page 9)
2
Connect circuit breakers or fuses and disconnects (see Circuit Protection on page 10)
3
Connect the line voltage wires to the meter‘s terminal block (see Line Wiring on page
4
10)
Mount the Current Transformers (CTs) around the line conductors. Make sure the CTs
5
face the correct direction. An arrow might indicate either the load or the source (public
grid) (see Connect Current Transformers on page 13)
Connect the twisted white and black wires form the CTs to the terminal block on the
6
meter, matching the wire colors to the white and black dots on the meter label (see CT
Wiring on page 14)
Check that the CT phases match the line voltage phases (see Connect Current Trans-
7
formers on page 13)
Record the CT rated current for each meter, because it will be required during setup
8
Connect the output terminals of the Fronius Smart Meter to the monitoring equipment
9
(see Connecting the Data Communication Signals to the Fronius Inverter on page 14)
If necessary set terminating resistors (see Terminating Resistors on page 15)
10
Check that all the wires and plugs are securely installed in the terminal blocks by tug-
11
ging on each wire
Turn on the power to the Smart Meter
12
Verify that the LEDs indicate correct operation. If there is a consumption of power and
13
all generated power sources are turned off, then the LEDs from the used phases
should flash green (see Power Status LEDs on page 17).
Check your Fronius System monitoring software. In order to ensure compatibility be-
14
tween the inverter and the Smart Meter, software must always be kept up-to-date. The
update can be started via the inverter website or via Solar.web.
Set CT-Ratio and Grid Type on the web interface of the Fronius Datamanager in Set-
15
tings - Meter - Settings (see Configuration Web Interface on page 16)
Mounting The Fronius Smart meter has two mounting holes spaced 5.375 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.
9
153 mm (6.02 in)
85.1 mm (3.35 in)
Ø
9.8 mm (0.386 in)
136.6 mm (5.375 in)
Ø
5.1 mm (0.200 in)
38 mm (1.50 in) High
Circuit Protection 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.
Line Wiring - 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.
10
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) (only 240V-3)
Fronius
Inverter
WHITE
Load
Faces
LOAD
Current
Tran sformers
D-
D+
-
WHITE
BLACK
BLACK
Shorting
Jumper
Source
Faces
Fronius Smart Meter
CT L1
CT L2
CT L3
e.g. 240 Vac (US)
Two-Phase (Australia) (only 480V-3)
Fronius
Inverter
WHITE
Load
Faces
LOAD
Current
Tran sformers
D-
D+
-
WHITE
BLACK
BLACK
Shorting
Jumper
Source
Faces
Fronius Smart Meter
CT L1
CT L2
CT L3
e.g. 400/480 Vac (AUS)
e.g. 120 Vac (US)
e.g. 120 Vac (US)
e.g. 240 Vac (AUS)
e.g. 240 Vac (AUS)
Ground
N
L1
L2
L3
Fuses or
EN-US
Breaker ≤ 20 A
Phase L1
Neutral
LINE
Phase L2
Ground
N
L1
L2
L3
Fuses or
Breaker ≤ 20 A
Phase L1
Neutral
LINE
Phase L2
Single-Phase Two-Wire without Neutral (only 240V-3 and 480V-3)
D-
Fronius
Inverter
WHITE
Load
Faces
LOAD
Current
Tran sformers
WHITE
BLACK
BLACK
Shorting
Jumper
Source
Fronius Smart Meter
D+
-
CT L1
CT L2
CT L3
Faces
N
L1
L2
L3
Ground
Fuses or
Breaker ≤ 20 A
Phase L1
Phase L2
LINE
11
Single-Phase Two-Wire with Neutral
D-
Fronius
Inverter
Fronius Smart Meter
D+
-
Ground
N
CT L1
LOAD
Load
Face
WHITE
BLACK
Shorting
Jumpers
Source
Face
CT L2
CT L3
Current
Transf or m er
Three-Phase Four-Wire Wye
D-
D+
-
CT L1
CT L2
CT L3
WHITE
BLACK
Source
Faces
LOAD
Load
Faces
Tran sformers
Fronius
Inverter
WHITE
BLACK
Current
WHITE
BLACK
Fronius Smart Meter
L1
L2
L3
Fuses or
Breaker ≤ 20 A
Phase L1
LINE
Neutral
Ground
N
L1
L2
L3
Fuses or Breaker ≤ 20 A
Phase L1
Phase L2
LINE
Phase L3
Neutral
Three-Phase Three-Wire Delta without Neutral (only 240V-3 and 480V-3)
D-
Fronius Smart Meter
D+
-
CT L1
CT L2
CT L3
Faces
Ground
N
L1
L2
L3
Fuses or
Breaker ≤ 20 A
Phase L1
Phase L2
Phase L3
LOAD
Load
Faces
Tran sformers
Fronius
Inverter
WHITE
BLACK
Current
WHITE
BLACK
WHITE
BLACK
Source
LINE
12
Three-Phase Four-Wire Stinger
D-
Fronius Smart Meter
CT L1
CT L2
CT L3
Faces
240 Vac
240 Vac
240 Vac 120 Va c
208 Vac
120 Va c
Ground
N
L1
L2
L3
Fuses or
Breaker ≤ 20 A
Phase L1
Phase L2
Phase L3
(Wild Leg)
Neutral
LOAD
Load
Faces
Tran sformers
Fronius
Inverter
WHITE
BLACK
Current
D+
-
WHITE
BLACK
WHITE
BLACK
Source
Three-Phase Two-Wire Corner Grounded Delta (only 240V-3 and 480V-3)
D-
Fronius Smart Meter
D+
-
CT L1
CT L2
CT L3
Faces
N
L1
L2
L3
Fuses or
Breaker ≤ 20 A
Phase L1
Phase L2
(Ground)
Phase L3
LOAD
Load
Faces
Tran sformers
Fronius
Inverter
Shorting
WHITE
Jumper
BLACK
Current
WHITE
BLACK
Source
EN-US
LINE
LINE
Connect Current
Transformers
The current transformer must generate 333.33 millivolts AC at rated current. See the current transformer data sheets for CT ratings.
- 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.
13
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.
CT Wiring 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.
Connecting the
Data Communication Signals to the
Fronius Inverter
Fronius Inverter Type 1
- Connect the Data Communication Terminal from the Fronius Smart Meter to the Fronius Inverter
- D+ to D+
- D- to D-
- - to -
Fronius Inverter Type 2
- Connect the Data Communication Terminal from the Fronius Smart Meter to the Fronius Inverter
- D+ to M1+
- D- to M1-
- - to GND
- Connect the shield of the cable to Shield
Fronius Inverter Type 1 and Type 2
- The Fronius Solar Meter outputs are electrically isolated from dangerous voltages.
- If the output wiring is near line voltage wiring, use wires or cables with a 300 V or 600
V rating (never less than the service voltage).
- If the output wiring is near bare conductors, it should be double insulated or jacketed.
- You may install two wires into each screw terminal by twisting the wires together, inserting them into the terminal and tightening them securely. Note: a loose wire can disable an entire network section.
- Use shielded twisted-pair cable to prevent interference. If there is no common conductor, connect the shield to the - (respectively C) terminal.
- Shielded 24 AWG Cat5 cable or higher is acceptable.
Set the address of
the Fronius Smart
Meter
14
The Fronius Smart Meter must be connected to the Fronius Datamanager. If only one Fronius Smart Meter is installed, the Modbus Address is 1.
DIP Switch 1 2 3 4 5 6
Up (1) value 1 2 4 8 16 32
Address Modbus Address 1
Position 1, Up 0, Down 0, Down 0, Down 0, Down 0, Down
Terminating Re-
OPTION 1
OPTION 3
OPTION 4
OPTION 2
sistors
The system might work without terminating resistors. Due to interferences, the use of terminating resistors according to the following schemes are recommended.
EN-US
OPTION 1
Fronius
Smart
Meter
max.
300 m
Data (Recommended cable: CAT)
OPTION 2
Modbus
RTU
Slave**)
Fronius
Smart
Meter
max.
300 m
Data (Recommended cable: CAT)
OPTION 3
Fronius
Smart
Meter
Fronius
Inverter
max.
300 m
Data (Recommended cable: CAT)
Fronius
Inverter
Fronius
Inverter
Modbus
RTU
Slave**)
1 2 3 4 5 6 7 8
CTS 206-8 T517
Modbus RTU
Slave
D- / D+ -
120 Ω
*)
1 2 3 4 5 6 7 8
CTS 206-8 T517
PIN7
ON
PIN7
ON
Modbus
1 2 3 4 5 6 7 8
CTS 206-8 T517
Modbus
ON (1)OFF (0)
PIN7
OFF
ON (1)OFF (0)
Modbus
ON (1)OFF (0)
Modbus RTU
Slave
D- / D+ -
120 Ω
*)
OPTION 4
Modbus RTU
Fronius
Smart
Meter
max.
300 m
Modbus
RTU
Slave**)
Fronius
Inverter
1 2 3 4 5 6 7 8
CTS 206-8 T517
PIN7
ON
Slave
D- / D+ -
Modbus
ON (1)OFF (0)
Data (Recommended cable: CAT)
*) Terminating resistor R 120 Ohm is supplied with the device
**) e.g. Fronius Ohmpilot, Fronius Solar Battery...
Set Baud Rate Select the baud rate by setting DIP switch position 8 (see below). The change will take ef-
fect immediately.
Baud Rate DIP Switch 8
9600 (default) 0, Down
15
Configuration
Web Interface
Go to the web interface of the Fronius Datamanager in Settings - Meter - Settings
1
Select “Fronius Smart Meter“
2
Click “Settings“
3
Set Location of the meter, CT-Ratio and Grid Type
4
Multi-meter system
If several Fronius Smart Meters are installed in the system, a separate address must be
set for each meter. The primary meter is always assigned address 1. All the other meters
are numbered consecutively with the address range from 2 to 14. Different types of Fronius
Smart Meters can be used in combination.
Maximum 3 secondary meter!
Grid
Grid
Meter
Primary
Meter
Consumption
Meter 1
IN OUT
Load 1
120 Ω
Fronius
120 Ω
Consumption
Meter 2
IN
OUT
Load 2
Inverter
Communication Line
Location of the primary meter in the consumption branch
Source
Meter 1
IN
Source 1
OUT
Maximum 3 secondary meter!
Grid
Grid
Meter
Primary
Meter
120 Ω
Communi-
cation Line
Consumption
Meter 1
IN OUT
Consumption
Meter 2
120 Ω
IN OUT
Fronius
Inverter
Source
Meter 1
IN
Location of the primary meter at the feed-in point
OUT
The following must be observed in a multi-meter system:
- Each Modbus address must only be assigned once
- Terminating resistors must be positioned individually for each channel
- The primary meter and the battery must be on different channels
- The remaining Modbus nodes must be distributed equally
Load 1
Load 2
Source 1
16
Operation
EN-US
Power Status
LEDs
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.
A
B
C
1.0sec1.0sec
GreenYel lowRed
GreenYel lowRed
GreenYel lowRed
1.0sec
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.
Green
Off
Green
Off
Green
Off
No Power
Any phase with a solid green LED indicates no power, but line voltage is present.
Green
No Voltage
Any phase LED that is off indicates no voltage on that phase.
Off
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.
C
Red
Off
Red
Off
Red
Off
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).
GR GR GR GR GR GR
A
GR GR GR GR
B
GR GR GR GR
C
1.0sec
GR GR
GR GR
17
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.
Modbus Communication LEDs
A
B
C
Off
Off
Off
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, return the meter for service.
A
B
C
Red
Red
Red
3.0sec
Near the upper left corner, there is a diagnostic Com (communication) LED that can indicate the following:
Green Off
Yel low Off
Red
YR YR YR
Red
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.
18
Technical Data
Accuracy Normal Operation
Line voltage: -20% to +15% of nominal
Power factor: 1.0
Frequency: 48 - 62 Hz
Ambient Temperature: 23° C ± 5° C
CT Current: 5% - 100% of rated current
Accuracy: ± 0.5% of reading
Measurement 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.
EN-US
Models and Electrical
Meter Service
Type
240V-3 UL 120 208-240 1 - 3 2 - 4
480V-3 UL 277 480 1 - 3 2 - 4
600V-3 UL 347 600 1 - 3 2 - 4
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: The following table shows maximum volt-amperes, the power sup-
ply ranges, typical power consumption, and typical power factors with all three phases
powered at nominal line voltages. The power supply consumes most of the total power,
while the measurement circuitry draws 1-10% of the total (6-96 milliwatts per phase, depending on the model). Due to the design of the power supply, the Fronius Smart Meter
draws slightly more power at 50 Hz.
Nominal Vac
Line-to-Neutral
Nominal Vac
Line-to-Line
Phases Wires
Meter Ser-
vice Type
240V-3 UL 1.2 W 1.5 W 0.70 4 VA 166 - 276 L1 and L2
480V-3 UL 1.2 W 1.6 W 0.70 3 VA 384 - 552 L1 and L2
600V-3 UL 1.0 W 1.3 W 0.76 3 VA 278 - 399 N and L1
*) The Rated VA is the maximum at 115% of nominal Vac at 50 Hz. This is the same as the
value that appears on the front label of the Fronius Smart Meter.
Maximum Power Supply Voltage Range: -20% to +15% of nominal (see table above).
For the 3D-240 service, this is -20% of 208 Vac (166 Vac) to +15% of 240 Vac (276 Vac).
Operating Frequencies: 50 / 60 Hz
Measurement Category: CAT III
Real Pow-
er (60 Hz)
Real Pow-
er (50 Hz)
Power
Factor
(50 Hz)
Rated
VA *)
Power Supply
Range (Vac)
Power Sup-
ply Terminals
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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):
Meter Service Type CAT III Voltage Rating
240V-3 UL 120
480V-3 UL 277
600V-3 UL 600
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 kOhm
Certifications Safety: UL 61010-1, CAN/CSA-C22.2 No. 61010-1-04, IEC 61010-1
Immunity: EN 61326: 2002 (Industrial Locations)
Electrostatic Discharge: EN 61000-4-2
Radiated RF Immunity: EN 61000-4-3
Electrical Fast Transient / Burst: EN 61000-4-4
Surge Immunity: EN 61000-4-5
Conducted RF Immunity: EN 61000-4-6
Voltage Dips, Interrupts: EN 61000-4-11
Emissions: FCC Part 15, Class B, EN 55022: 1994, Class B
Environmental Operating Temperature: -30° C to +75° C (-22° F to 167° F)
Altitude: Up to 2000 m (6560 ft)
Operating Humidity: non-condensing, 5 to 90% relative humidity (RH) up to 40°C, de-
creasing 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 (Ham-
mond Mfg., Type EJ Series) rated NEMA 3R or 4 (IP 66).
Mechanical Enclosure: High impact, ABS/PC plastic
Flame Resistance Rating: UL 94V-0, IEC FV-0
Size: 6.02 in. × 3.35 in. × 1.50 in. (153 mm × 85 mm × 38 mm)
Connectors: Euroblock pluggable terminal blocks
Green: up to 12 AWG (2.5 mm²), 600 V
Black: up to 12 AWG (2.5 mm²), 300 V
Fronius Manufacturer's Warranty
Detailed warranty terms and conditions specific to your country can be found online:
www.fronius.com/solar/warranty
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To take advantage of the full warranty duration for your newly installed Fronius inverter or
accumulator, register your product at: www.solarweb.com.
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