FRONIUS WR Manual de usuario

Operating

Instructions

Fronius Smart Meter WR

42,0426,0455,EA 002-31082022

EN-US Operating instructions

Table of contents

Safety rules 4

Explanation of Safety Instructions 4

General 4

Environmental conditions 5

Qualified personnel 5

Data backup 5

FCC / RSS Compliance 5

Disposal 6

General 7

Device description 7

Warning notices on the device 7

Positioning 7

Installation 9

Installation Checklist 9

Mounting 9

Circuit Protection 10

Line Wiring 10

Connect Current Transformers 13

CT Wiring 13

Connecting data communication cables to inverters 14

Set the address of the Fronius Smart Meter 15

Terminating resistors - explanation of symbols 16

Terminating Resistors 16

Set Baud Rate 18

Multi meter system - Explanation of symbols 18

Modbus participant - Fronius SnapINverter 19

Multi meter system - Fronius SnapINverter 19

Modbus participant - Fronius GEN24 20

Multi meter system - Fronius GEN24 inverter 21

Commissioning 23

Fronius SnapINverter 25

General 25

Connect to Fronius Datamanager 25

Configure Fronius Smart Meter as primary meter 25

Configure Fronius Smart Meter as a secondary meter 26

Fronius GEN24 inverter 27

General 27

Installation with the browser 27

Configure Fronius Smart Meter as primary meter 28

Configure Fronius Smart Meter as a secondary meter 28

Operation 30

Power Status LEDs 30

Modbus Communication LEDs 31

Technical data 32

Accuracy 32

Measurement 32

Models and Electrical 32

Certifications 33

Environmental 34

Fronius manufacturer's warranty 34

EN-US

Safety rules

Explanation of

Safety Instruc-

tions

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.

General The device has been manufactured using state-of-the-art technology and ac-

cording to recognized 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 operat-

ing 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 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.

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.

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 operat-

ing company.

Any safety devices that are not functioning properly must be repaired by an au-

thorized 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 sec-

tion headed “General” in the Operating Instructions for the device.

Any equipment malfunctions which might impair safety must be remedied imme-

diately before the device is turned on.

Your personal safety is at stake!

Environmental

conditions

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 liab-

ility for any damage resulting from improper use.

Qualified per-

sonnel

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 di-

mensioned. 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 an authorized special-

ist.

It is impossible to guarantee that externally (aka, third-party) 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 stand-

ard 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.

Text and illustrations were accurate at the time of printing. Fronius reserves 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 Operating Instructions, we will be most grateful for your com-

ments.

Data backup The user is responsible for backing up any changes made to the factory settings.

The manufacturer accepts no liability for any deleted personal settings.

FCC / RSS Com-

pliance

FCC

This device corresponds to the limit values for a digital device of class B in ac-

EN-US

cordance 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 guaran-

tee 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. Op-

eration 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.

Disposal To comply with European directives and national law, waste electrical and elec-

tronic equipment must be collected separately and sent for environmentally-

friendly recycling. Used devices must be returned to a distributor or an approved

collection and recycling facility in your area. Proper disposal of used devices pro-

motes the sustainable recycling of material resources. Ignoring this may have po-

tentially adverse effects on the environment and your health.

Packaging materials

Materials collected separately. Check the regulations in your area. Reduce the

volume of cardboard.

General

Device descrip-

tion

The Fronius Smart Meter is a bidirectional electricity meter for optimizing self-

consumption and recording the household's load characteristic curve. Together

with the Fronius inverter, the Fronius Datamanager and the Fronius data inter-

face, the Fronius Smart Meter provides a clear overview of your own power con-

sumption.

The meter measures the power ﬂow to the loads or to the grid and forwards the

information to the Fronius inverter via ModBus RTU/RS485 communication.

CAUTION!

Observe and follow the safety instructions!

Failure to observe the safety instructions will result in damage to persons and

equipment.

▶Switch off the power supply before establishing the mains connection.

▶Follow all safety instructions.

Warning notices

on the device 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.

Positioning 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.

EN-US

Positioning at the consumption point

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

Installation

Checklist

See the sections referenced below for installation details.

1Turn off power before making line voltage connections.

2Mount the Fronius Smart Meter (see Mounting on page 9).

3Connect circuit breakers or fuses and disconnects (see Circuit Protection on

page 10).

4Connect the line voltage wires to the meter‘s terminal block (see Line Wiring

on page 10).

5Mount the Current Transformers (CTs) around the line conductors. Make sure

the CTs face the correct direction. An arrow might indicate either the load or

the source (public grid) (see Connect Current Transformers on page 13).

6Connect the twisted white and black wires from the CTs to the terminal block

on the meter, matching the wire colors to the white and black dots on the

meter label (see CT Wiring on page 13).

7Check that the CT phases match the line voltage phases (see Connect Cur-

rent Transformers on page 13).

8Record the CT rated current for each meter, because it will be required dur-

ing setup.

9Connect the output terminals of the Fronius Smart Meter to the monitoring

equipment (see Connecting data communication cables to inverters on page

14).

10 If necessary set terminating resistors (see Terminating Resistors on page

16).

11 Check that all the wires and plugs are securely installed in the terminal

blocks by tugging on each wire.

12 Turn on the power to the Smart Meter.

13 Verify that the LEDs indicate correct operation. If there is a consumption of

power and all generated power sources are turned off, then the LEDs from

the used phases should ﬂash green (see Power Status LEDs on page 30).

14 Check your Fronius System monitoring software. In order to ensure compat-

ibility between 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.

15 Set CT-Ratio and Grid Type on the web interface of the Fronius Datamanager

in Settings - Meter - Settings (see Commissioning on page 23).

Mounting 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 detach-

able 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.

EN-US

155 mm (6.1 in)

38,1 mm (1.5 in) High

85 mm (3.35 in)

137 mm (5.4 in)

Circuit Protec-

tion

The Fronius Smart Meter is considered “permanently connected equipment“ and

requires a disconnect means (circuit breaker, switch or disconnect) and overcur-

rent protection (fuse or circuit breaker).

The Fronius Smart Meter only draws 10-30 mA, so the rating of any switches, dis-

connects, 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 over-

current protection device must interrupt both neutral and ungrounded con-

ductors 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 Froni-

us 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 mod-

els 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.

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