Riello RS 3.0, RS 4.0, RS 6.0 Installation And User Manual

INTRODUCTION
Thank you so much for choosing RS 1.5-6.0, the latest generation of grid-tied PV string inverters (hereinafter referred to as the
“inverter”) designed and developed by Riello Solartech.
Our company is specialised in the development and production of photovoltaic inverters. The solar inverters in this series are highquality products, carefully designed and constructed with the aim of ensuring high performance.
This equipment can be used by any person, provided they READ THIS MANUAL CAREFULLY AND THOROUGHLY.
This user manual introduces the inverter in terms of its installation, electrical connections, operation, commissioning, maintenance
and troubleshooting.
For information regarding use and to obtain maximum performance from your equipment, this manual should be stored
carefully near the inverter and CONSULTED BEFORE OPERATION.
NOTE: some images contained in this document are for information purposes only and may not faithfully reproduce the parts of the
product represented.
Application Model
Grid-tied PV string inverter
•
•
RS 1.5/2.0/3.0
RS 4.0/5.0/6.0
PV inverter with single MPPT input
PV inverter with double MPPT input
Intended Recipients
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified electrical technicians.
Note:
this user manual is subject to change (specific please in kind prevail) without prior notice. The latest version of the user manual and
additional information on the product are available on http://www.riello-solartech.com, and/or by consulting your dealer.
Symbol Conventions
The safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed below:
Symbol
Description
Indicates an imminently hazardous situation which, if not correctly followed, will result in serious injury or
DANGER
death.
WARNING
death.
Indicates a potentially hazardous situation which, if not correctly followed, could result in serious injury or
Indicates a potentially hazardous situation which, if not correctly followed, could result in moderate or minor
CAUTION
injury.
Indicates a potentially hazardous situation which, if not correctly followed, could result in equipment failure
NOTICE
NOTE
Refer
or property damage.
Calls attention to important information, best practices and tips:
supplements the safety instructions to optimise your use of the PV inverter and reduce wastage of
resources.
Refer to documentation (Remind operators to refer to the documentation shipped with the inverter).
-1-
SAFETY PRECAUTIONS
Before using the product, please read these safety precautions in the User Manual carefully.
Personnel Safety
•
•
•
The PV inverter must be installed, electrically connected, operated and maintained by a specially trained technician.
The qualified technician must be familiar with the safety regulations concerning the electrical system, the working process
of the PV power generation system and the standards of the local power grid.
The technician must read through this User Manual carefully and master it before any operation.
PV Inverter Protection
NOTICE
•
•
Upon receiving the PV inverter, please check whether it was damaged during transport. If it was, please contact
your dealer immediately.
Do not tamper with any warning signs on the inverter’s enclosure, because these signs contain important information on
safe operation.
Do not remove or damage the nameplate on the inverter’s enclosure, because it contains important product information.
Installation Safety
NOTICE
•
•
Please read the User Manual carefully before installing the PV inverter; warranty or liability will be voided if
damage is caused by installation faults.
Ensure that there are no electrical connections around the PV inverter ports prior to installation.
Adequate ventilation must be provided in the inverter’s installation location. Mount the inverter in the vertical direction and
ensure that no object is placed on the heat sink, as this may affect the cooling efficiency (for details, refer to Chapter 4 Installation).
Electrical Connections
DANGER
•
•
•
•
Before installing the inverter, check all electrical ports to ensure that there are no
damages or short-circuits. Otherwise, personal injury and/or fire will occur.
Input terminals of the PV inverter apply only to input terminals of the PV string; do not connect any other DC source to the
input terminals.
Before connecting PV modules, ensure that their voltage is within the safe range; when exposed to any sunlight, PV modules
can generate high voltage.
All electrical connections must meet the electrical standards of the relevant country or region.
Cables used for electrical connections must be properly secured, well-insulated and made to the appropriate specification.
Operation and Commissioning
DANGER
•
•
•
While the inverter operates, high voltage can lead to an electrical shock hazard and even cause personal injury.
Therefore, operate the PV inverter strictly according to the safety precautions in this User Manual.
Unless permission has been obtained from the power company of the country/region, the grid-tied PV inverter cannot start
generating power.
Follow the procedures for commissioning described in the User Manual when commissioning the PV inverter.
When the PV inverter is operating, do not touch the surface of any other parts except for the DC switch; its constituent parts
will be extremely hot and can cause burns.
Maintenance
DANGER
•
•
•
•
Power OFF all electrical terminals before performing inverter maintenance; strictly comply with the safety
precautions stated in this document when operating the inverter.
For personal safety, maintenance personnel must wear appropriate personal protective equipment (such as insulation gloves
and protective shoes) for inverter maintenance operations.
Place temporary warning signs or erect fences to prevent unauthorised access to the maintenance site.
Strictly follow the maintenance procedures specified in the User Manual.
Check the relevant safety and performance of the inverter; rectify any faults which may compromise the safe operation of
the inverter before restarting the latter.
Additional Information
NOTICE
To avoid any other unforeseeable risk, contact Riello immediately if any safety issue emerges during operation.
-2-
PROTECTING THE ENVIRONMENT
Our company has devoted extensive resources to the analysis of environmental aspects in the development of our products. All our
products pursue the objectives set out in the environmental management system policy, developed by our company in accordance
with current legislation.
This product does not contain hazardous materials such as CFCs, HCFCs or asbestos.
Product packaging is made from RECYCLED MATERIALS. The disposal of individual components must be performed in accordance
with current legislation in the country where the product is used. Refer to the following table for material identification:
DESCRIPTION
MATERIAL
Packaging box
Corrugated cardboard (PAP)
Protective bag
High-density polyethylene (HDPE)
Foam
Low-density polyethylene (LDPE)
Bubble wrap
LIMITED GUARANTEE
The equipment you have purchased has been constructed according to the most modern techniques and was rigorously tested before
leaving the factory.
During the guarantee period, the manufacturer shall repair or replace parts that prove defective, provided that such defects have not
been caused by incompetence or negligence of the buyer, fortuitous events or force majeure (lightning, fire, flood, etc.), incorrect or
inadequate installation other than as stated in the manual, unsuitable transport or delivery, opening of the unit by unqualified personnel
or breaking of the closure seal, modification, testing or unauthorised repair, use or application beyond the limits defined by the manual,
or application beyond those defined by safety standards (VDE, UL, etc.).
It is the responsibility of the person applying for technical assistance from Customer Service to provide detailed information about the
detected failure or malfunction.
The repair and/or replacement of parts or the device shall be implemented at the discretion of the supplier.
Any repair under guarantee will be performed by the manufacturer or an authorised service centre. Equipment must arrive at the risk
and expense of the customer in its original packaging so as not to cause further damage.
If repairs must be performed directly at the customer’s premises, the customer shall be charged for expenses and hours of travel,
while the costs for labour and parts shall be borne by the manufacturer. This guarantee does not in any case cover the replacement
of equipment or compensation for any direct or indirect costs or claims for damage caused by device malfunction.
©
No part of this manual may be reproduced without prior permission from the manufacturer.
For the purpose of improvement, the manufacturer reserves the right to change the product described at any time and without notice.
-3-
CONTENTS
PRESENTATION _________________________________________________________________________ 5
Product presentation _________________________________________________________________________ 5
INSTALLATION _________________________________________________________________________ 9
Preliminary checks ___________________________________________________________________________ 9
Electrical installation _________________________________________________________________________ 17
USE _________________________________________________________________________________ 23
System Operation ___________________________________________________________________________ 23
User Interface ______________________________________________________________________________ 23
Maintenance _______________________________________________________________________________ 25
Troubleshooting ____________________________________________________________________________ 26
Storage ____________________________________________________________________________________ 28
Disposal of the inverter _______________________________________________________________________ 28
CONFIGURATION & MONITORING ________________________________________________________ 29
Introduction ________________________________________________________________________________ 29
“RS Connect” app ___________________________________________________________________________ 29
“RS MONITORING” CLOUD PORTAL _____________________________________________________________ 34
APPENDIX ____________________________________________________________________________ 42
Technical Specifications ______________________________________________________________________ 42
-4-
PRESENTATION
PRODUCT PRESENTATION
This chapter introduces the inverter and describes its functional model, network application, appearance, dimensions and working
process, etc.
Functional Model
Function
This series consists of a single-phase grid-tied PV string inverter (transformerless) which converts the DC power generated by PV
strings into AC power and feeds the power into the power grid.
WARNING
The inverter is transformerless. Add an isolation transformer before grounding the positive/negative terminal
of the PV modules (such as a thin-film module) for operation.
WARNING
Do not connect PV modules in parallel to several PV inverters for operation.
Model Description
The number in the model name indicates the power class of the inverter, for example, model RS 3.0 is a 3 kW inverter.
RS 3.0
Power class 3 kW
Network Application
Grid-tied PV Power Systems
The series included grid-tied PV power systems for outdoor power stations. Typically, a grid-tied PV power system consists of PV
modules, grid-tied inverters, AC distribution units and a low-voltage power grid, as shown in the figure below.
PV string
Inverter
-5-
Low-voltage power grid
Outline and Dimensions
RS 1.5-2.0 3.0 PV inverter with single MPPT input (UoM: mm)
RS 4.0/5.0/6.0 PV inverter with double MPPT input (UoM: mm)
Bottom view RS 1.5/2.0/3.0
Bottom view RS 4.0/5.0/6.0
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Connections Area
(1)
(2)
(3)
(4)
(5)
(6)
Vent valve
DC isolation breaker
PV string terminal
AC output connector
Communications interface
External protection ground interface
(1)
(2)
(3)
(4)
(5)
PV indicator
Grid indicator
COM indicator
Warning indicator
LCD
Indicator Panel View LED and LCD Area
-7-
Working Process
Basic principle description
The RS 1.5/2.0/3.0 PV inverters with single MPPT input receives inputs from only one string of PV panels. The RS 4.0/5.0/6.0 PV
inverters with double MPPT input receive inputs from two strings of PV panels. Then the inputs are grouped into one or two
independent MPPT routes inside the inverter to track the maximum power point of the PV panels. The MPPT power is then converted
into DC bus and the DC power is converted to AC power through an inverter circuit. Lastly, the AC power is fed into the power grid.
An EMI filter is used on both the DC and AC sides to reduce electromagnetic inference; surge protection is supported on the AC side.
Circuit Diagrams
The diagram below shows the circuit blocks of the 1.5 kW-3 kW PV inverters with single MPPT input:
DC
EMI
Filter
MPPT
L
Route
N
1
PE
PV DC
Switch
Relay
The diagram below shows the circuit blocks of the 4kW-6 kW inverters with double MPPT input:
DC
EMI
Filter
MPPT
Route1
1
L
N
DC
EMI
MPPT
Filter
Route2
PE
2
Relay
PV DC
Switch
Operating Modes
The following three operating modes of the inverter are described below: stand-by, operating, and shutdown.
The table below shows the conditions for the inverter to switch between operating modes.
Mode
Description
Stand-by
The PV inverter enters the stand-by mode when:
•
The input voltage of the PV string can enable the auxiliary power supply to run but cannot meet the inverter
operation requirements.
•
The input voltage of the PV string can meet the inverter start-up requirements but cannot meet its minimum
power requirements.
Operating
When the PV inverter is grid-tied and generates electricity, it tracks the maximum power point to maximise the PV
string output. It converts DC power from PV strings into AC power and feeds the power into the power grid.
The PV inverter will enter the shutdown mode if a fault is detected or a shutdown command is given.
Shutdown
The PV inverter switches from stand-by or operating mode to shutdown mode if a fault is detected or a shutdown
command is given.
The inverter switches from shutdown mode to stand-by mode if a start-up command is given or when it detects that
a fault has been rectified.
-8-
INSTALLATION
PRELIMINARY CHECKS
DANGER
Do not install the inverter on flammable building materials or in an area where flammable or explosive
materials are stored.
CAUTION
Do not install the inverter in a place where personnel are likely to come into contact with its enclosure and
heat sinks, to avoid electrical shock or burns.
Checking the packaging contents
•
•
•
Upon receiving the inverter, check that the packaging materials are intact.
After unpacking, check that the deliverables are complete, intact and consistent with your order list.
Examine the PV inverter and its fittings for any damage such as scraps and cracks.
G
H
ITEM
DESCRIPTION
A
PV Inverter
B
Rear panel
C
Manuals
D
AC output connector
E
DC terminal connector group
F
Screws
G
Expansion plugs kit
(for tightening the rear panel)
H
Wi-Fi antenna
I
Removal tool for DC connectors
NOTICE
I
If any of the damage mentioned above is found, contact the dealer immediately.
-9-
Moving the inverter
After checking the outer packaging, move the PV inverter to the designated installation position horizontally. Grip the handles on both
sides of the inverter, as shown in the figure below.
CAUTION
Do not place the PV inverter with its wiring terminals in contact with the floor, because the power ports and signal
ports at the bottom of the device are not designed to bear the weight of the inverter.
When placing the inverter on the floor horizontally, place foam or paper under it to protect its enclosure.
Identifying the PV Inverter
Nameplate
After removing the PV inverter from its packaging box, identify it by reading its nameplate affixed to the side of the inverter. The
nameplate contains important product information: model, communication/technical specifications and compliance symbols.
Risk of electric shock
The device contains high voltages, both alternating and direct current, and high leakage currents may be generated
during operation. To avoid the risk of electric shock during maintenance or installation, make sure that all DC and AC
connection terminals are disconnected. First connect the grounding wire to ground and disconnect it last during
maintenance. Check for the proper phase and neutral connection. If the unit is used without following the
specifications of the manufacturer, the protection provided by the equipment may be impaired.
Disconnect the inverter from the grid and from the photovoltaic generator before cleaning the photovoltaic modules:
an unexpected capacitive current from the surface of the modules may surprise operators, causing them to fall off
the roof.
Handling the photovoltaic inverter
The photovoltaic inverter must only be handled by qualified service personnel. When the photovoltaic generator is
exposed to sufficiently intense light, it generates DC voltage, and when connected to the device, it charges the bulk
capacitor. After having disconnected the photovoltaic inverter from the grid and the photovoltaic generator, an electric
charge may remain in the bulk capacitor. Please wait at least 10 minutes after disconnecting the device from the grid
before handling it.
10 m i ns
Exclusively for the grid
The PV inverter is designed for the sole purpose of converting energy from PV modules and injecting it into the grid.
This inverter is not designed to be powered by sources of primary energy other than PV modules or to be connected
to different loads other than the public grid.
Hot surfaces
Although it has been designed in accordance with international safety standards, the photovoltaic inverter may
become hot during operation.
Disposal
If the inverter service life has expired, dispose of the device in accordance with local rules for disposal of electrical
equipment waste. Do not dispose of PV inverter with household waste.
- 10 -
Installation Requirements
These apply to wall-mounted installation, as described below in detail.
Determining the Installation Position
Basic Requirements
•
The inverter is protected to IP65 and can be installed indoors or outdoors.
•
The installation method and position must be appropriate for the weight and dimensions of the inverter.
•
Do not install the inverter in a place where personnel are likely to come into contact with its enclosure and heat sinks,
because these parts are extremely hot during operation.
•
Do not install the inverter in an area where flammable or explosive materials are stored.
Installation Environment Requirements
•
The ambient temperature must be below 50℃, which ensures the inverter’s optimal operation and extends its service life.
•
The inverter must be installed in a well-ventilated environment to ensure good heat dissipation.
•
The inverter must not be directly exposed to sunlight, rain and snow to avoid shortening its service life. It is recommended
that the inverter be installed in a sheltered place. If no shelter is available, build an awning, as shown in the figure below.
Carrier Requirements
•
The carrier where the inverter is installed must be fireproof. Do not install the inverter on flammable building materials.
•
The wall must be solid enough to bear the weight of the inverter.
•
Do not install the inverter on a wall made of gypsum boards or similar materials.
- 11 -
Installation Space Requirements
•
It is recommended that the inverter be installed at eye level to facilitate operation and maintenance.
•
Reserve enough clearance around the inverter to ensure sufficient space for installation and heat dissipation, as shown in
the figure below.
Front view
Side view
When installing multiple inverters, install them along the same line if sufficient space is available, or in a triangle pattern or stacked if
there is insufficient space. The installation modes ensure sufficient space for installation and heat dissipation (see following figures
for more details).
Installation along the same line (UoM: mm)
- 12 -
Installation in triangle pattern (UoM: mm)
200
10 00
Installation in stacked mode (UoM: mm)
NOTICE
The clearance between multiple inverters must be increased to ensure proper heat dissipation when they are
installed in a hot area.
- 13 -
Installation Mode Requirements
Install the inverter upright or with a maximum backward tilt angle of 15 degrees to facilitate heat dissipation.
Below are some correct/wrong installation modes.
The correct installation mode
Upright
Backward tilt
Upside-down
Horizontal
The wrong installation mode
NOTICE
Incorrect installation will lead to failure of the inverter operation.
Installing a Rear Panel
Before installing the inverter, secure the shipped rear panel to a wall.
Step 1 Remove the rear panel from the packaging box.
Step 2 Determine the positions for drilling holes using the rear panel.
RS 1.5/2.0/3.0 PV inverter with single MPPT input
RS 4.0/5.0/6.0 PV inverter with double MPPT input
- 14 -
Step 3 Level the hole positions using a level and mark the hole positions using a marker.
level
Step 4 Drill holes using a hammer drill and install expansion bolts, as shown in the figure below.
DANGER
•
•
Before drilling the hole in the wall, ensure that no electrical wiring and/or water piping inside the wall will be
damaged.
Drill a hole in a marked position to a depth of 60 mm using a hammer drill with a Ф10 mm bit.
Partially tighten an expansion bolt, insert it vertically into the hole and knock it completely into the hole using a rubber mallet.
Ø1 0 , d ri llin g depth ： 60m m
Punch holes
Install expansion plugs
Step 5 Align the rear panel with the holes, insert the expansion bolts into the holes through the real panel and tighten them to a torque
of 2-2.5 Nm using a torque wrench.
torque：2-2.5N.m
- 15 -
Installing the Inverter
Follow the procedures described below:
Step 1 The installer must hold the handle at both sides of the inverter and then lift the inverter and place it standing.
Step 2 Mount the inverter on the rear panel and keep the two parts aligned with one another.
Step 3 Tighten the two hexagon screws at both sides of the inverter to a torque of 1.2 Nm and 3 Nm respectively. Screw specs for
1K-3.6K and 3K-6K are M4 and M6 respectively.
Mount on the rear panel
Tighten the screws at both sides
- 16 -
ELECTRICAL INSTALLATION
Preliminary operations
•
•
•
It is advisable to install a circuit breaker on the AC side (see “Recommended circuit breaker” in the technical specifications
table).
Turn the DC switch to off.
Open the AC switch downstream of the inverter.
DANGER
Before performing any electrical connections, ensure that both the DC and AC switches are OFF.
Otherwise, fatal injury can occur due to the high voltage generated by the AC and DC cables.
CAUTION
Grounding of the PV strings must obey the following prerequisites:
If an isolation transformer must be installed on the AC side of each inverter, ensure that the neutral wire of the isolation
transformer is disconnected from the PGND cable.
One isolation transformer goes with one PV inverter: do not install a single isolation transformer for multiple inverters; otherwise,
circulating current generated by the inverters will lead to operation failure.
Connecting Protection Ground (PGND) Cables
Preparation
The ground cable and OT terminals have to be prepared.
Ground cable: outdoor copper-core cables with 4 mm2 cross-sectional area or more are recommended.
OT terminal: OT6~4 M4
NOTE
Proper grounding for the inverter helps to counter the impact of surge voltage and improve EMI performance.
Connect the PGND cable before connecting the AC and DC power cables and the communication cables.
NOTE
It is recommended that the ground cable be connected to a nearby ground position. For a system with multiple
inverters connected in parallel, connect the ground points of all inverters to ensure equipotential connections.
Wiring Procedures
Step 1 Remove an appropriate length of the insulation layer from the PGND cable using a wire stripper; this length must be longer
than that of the OT terminal’s crimping end by 2 mm–3 mm.
Step 2 Insert the exposed core wires into the crimping areas of the OT terminal and crimp them using hydraulic pliers.
- 17 -
Step 3 Remove the ground screws from the ground points.
Step 4 Secure the PGND cable (done with steps 1 and 2) using the ground screw and tighten the screw to a torque of 1.2 Nm using
a socket wrench.
Connecting the AC Output Cables
Preparation
The AC power cable and AC terminals have been prepared.
AC power cable: outdoor copper-core cables are recommended. The following table describes the specifications.
Cross-sectional area (mm2)
Inverter model
Range
1K–3.6K
Recommended value
outdoor cable
Range
Recommended value
10–14
14
4
4–6
3K–6K
Cable outer diameter (mm)
Cable type
outdoor cable
6
WARNING
An independent circuit breaker must be installed on the AC side of each
inverter to ensure that the inverter can be safely disconnected from the power grid.
WARNING
Do not connect loads between the AC output terminals of the inverter and circuit breaker.
- 18 -
Procedure for Connecting AC Cables
Step 1 Remove an appropriate length of the jacket and insulation layer from the AC output cable using a wire stripper, as shown in
figure below.
8 ~1 5
3 6 ~4 0
Step 2 Insert the exposed core wires through the nut of the AC terminal sleeve in the middle, with the L terminal for the line wire, the
N terminal for the neutral wire and the G terminal for the earth wire, then tighten the screw. The required torque is 0.8 Nm. After
fastening the cables, tighten the nut and sleeve in the middle, as shown in figure below.
Step 3 After the AC wiring, route the AC connector into the AC terminal of the inverter and double-check it.
- 19 -
Connecting the PV Strings
The PV strings connection must comply with the following prerequisites; otherwise, an electric shock may
occur.
DANGER
PV modules generate electrical energy when exposed to sunlight and can create an electric shock hazard. Therefore, when
connecting the PV modules, shield them with opaque cloth.
Before connecting the DC input power cables, ensure that the voltage on the DC side is within the safe range and that the DC
SWITCH on the inverter is OFF. Otherwise, high voltage may result in electric shock.
When the inverter is grid-tied, it is not allowed to maintain DC input power cables, such as those used to connect or disconnect a
string or a module in a string. Only after the inverter enters in shutdown mode can maintenance on the DC input power cables be
performed.
Grounding of the PV strings must comply with the following prerequisites; otherwise, a fire can break out.
WARNING
PV modules connected in series in each PV string must have the same specifications.
The maximum open-circuit voltage of each PV string must be always lower than or equal to its permitted range.
The maximum short-circuit current of each PV string must be always lower than or equal to its permitted range.
The positive and negative terminals of PV modules must be connected to the positive and negative DC input terminals of the inverter,
respectively.
During the installation of PV strings and the inverter, the positive or negative terminals of PV strings cannot be connected with a
short-circuit.
Preparation
Route connection for the installation of PV strings and the inverter:
Inverter model
Number of input route
RS 1.5/2.0/3.0
1
RS 4.0/5.0/6.0
2
PV strings DC input cable and connectors have to be prepared; the following table lists the recommended outdoor copper-core DC
input cable specifications.
Cross-sectional area (mm2)
Range
Recommended value
Inverter model
Cable type
RS 1.5/2.0/3.0
Common PV cables in
the industry (model:
PV1-F)
RS 4.0/5.0/6.0
Cable outer diameter (mm)
Range
Recommended value
4–6
4
5–8
5
4–6
6
5–8
8
Connectors for PV strings: positive and negative DC input connectors are used, as shown below.
1
2
th e in su l ati o n la ye r
1
l o cki n g nu t
th e in su l ati o n la ye r
Positive connector components
NOTE
2
l o cki n g nu t
Negative connector components
Positive and negative metal connectors are packaged with positive and negative connectors,
respectively, when shipped. After unpacking the device, keep the positive and negative
connectors separate to avoid confusion.
- 20 -
Procedures for connecting the PV strings
Step 1 Remove an appropriate length of the insulation layer from the positive and negative power cables using a wire stripper, as
shown in the figure below.
Po si ti ve me ta l co nn e cto r
Ne ga ti ve me ta l co nn e cto r
Step 2 Insert the exposed areas of the positive and negative power cables into the metal terminals of the positive and negative
connectors respectively and crimp them using a crimping tool, as shown below.
Step 3 Insert the crimped positive and negative power cables into the corresponding positive and negative connectors until a “click”
is heard, as shown below.
Step 4 Tighten the locking nuts on the positive and negative connectors using a spanner.
Step 5 Measure the voltage of every string route using a multimeter. Ensure that the poles of the DC input power cables match up.
- 21 -
Step 6 Insert the positive and negative connectors into their corresponding terminals of the inverter until a “click” is heard, as shown
in the figure below.
Step 7 After connecting the PV strings, ensure that all connectors are in position by checking for resistance when a slight pull is
applied.
Connecting the Wi-Fi Antenna
Fasten the Wi-Fi antenna (included in the box) to the inverter, screwing it onto the relative connector.
Contacts and RS485 Module (optional)
A module is available including the RS485 standard, besides contacts and power limiter functions. This module must be installed to
the inverter communication interface.
For more details refer to www.riello-solartech.com.
Installation Verification
Once the inverted has been installed, check the following items:
•
No other objects must be placed on the PV inverter.
•
All screws, especially those used for electrical connections, must be tight.
•
The PV inverter must be installed correctly and securely.
•
The ground, AC, DC and communications cables must be connected tightly/correctly and securely.
•
Check that there is no open circuit or short-circuits at the AC and DC terminals using a multimeter.
•
Waterproof connectors at AC terminals and RS485 ports must be tightly plugged with waterproof plugs.
•
Covers at the AC terminals must be tight.
•
Idle terminals must be sealed.
•
All safety warning symbols on the inverter must be intact and complete.
- 22 -
USE
SYSTEM OPERATION
Powering the Inverter On
Step 1: Switch on the AC circuit breaker.
Step 2: Turn on the DC switch on the inverter.
Step 3: Observe the statuses of the LED indicator lights on the inverter by referring to the table in the user interface chapter.
NOTE
When the LED status lights show that the inverter has entered the grid connection mode, it means that the
inverter is operating properly. For any queries during the PV inverter’s operation, contact your dealer.
Powering the Inverter Off
Step 1: Give a shutdown command on the inverter app (RS Connect).
Step 2: Switch off the circuit breaker at the AC terminal.
Step 3: Turn off the DC switch on the inverter.
WARNING
After the inverter switches off, the remaining electricity and heat may still cause electrical shock and burns.
Wait ten minutes after the power-off before servicing the inverter.
USER INTERFACE
The indicator panel of the inverter is composed of LED indicators and a LCD. The LED indicators include the PV, Grid, COM and Warning
indicators.
(1)
(2)
(3)
(4)
(5)
PV indicator: this LED indicates the status of the DC voltage panels.
When lit, DC voltage is present within the normal range.
Grid indicator: this LED indicates the AC voltage status. When lit, it
means that AC is present and inverter is connected to the grid.
COM indicator: this LED indicated the communication status. See
next table for details.
Warning indicator: this LED indicates that an alarm is present on
the inverter. See next table for details.
LCD: normally, the LCD indicates the instantaneous power
generated. If an alarm occurs, the LCD will display the relative alarm
code. See next table for details.
- 23 -
LED/LCD Status and Warning Code Table
Normal status (with Wi-Fi Internet
connection OK)
Starting up (inverter tries to connect
to grid)
Wi-Fi connection
Router OK – Internet Fail
Wi-Fi connection
Router OK – Internet Fail
Wi-Fi connection
Router Fail – Internet Fail
Wi-Fi/RS485 communication during
data transmission
LCD
Display
Instantaneous
power generated
PV
Indicator
0.0 kW
PV normal
PV absent
Grid normal
(inverter connected to grid)
Grid normal
(not connected to grid)
Except start-up phase
Grid absent
Grid over-voltage
Grid under-voltage
Grid over-frequency
Grid under-frequency
Grid type unknown
PV over-voltage
PV under-voltage
PV strings abnormal
Inverter over-temperature
Fan lock
Abnormal insulation resistance
Abnormal leakage current
Strings reverse
Control power low
Output DC over-current
Inverter relay abnormal
Abnormal leakage current HCT
System fault
BUS voltage imbalance
BUS over-voltage
Internal communication fault
Software incompatibility
EEPROM error
Consistent warning
Invert circuit abnormal
Boost circuit abnormal
Symbol legend:
light on
light off
keep original status
light blinks very slow (every 5 s)
light blinks slow (every 2 s)
light blinks fast (every 0.5 s)
- 24 -
Grid
Indicator
COM
Indicator
Warning
Indicator
MAINTENANCE
WARNING
Before performing maintenance on and commissioning the inverter and its peripheral distribution unit,
switch off all the charged terminals of the inverter and wait at least 10 minutes after the inverter is powered
off.
Routine Maintenance
Check item
Check content
Maintain content
Maintenance
interval
Inverter output
status
Statistically maintain the electrical yield status and remotely monitor
its abnormal status.
N/A
Weekly
PV inverter
cleaning
Periodically check that the heat sink is free from dust and clogging.
Clean the heatsink
periodically.
Yearly
PV inverter
running status
Check that the inverter is not damaged or deformed.
Check for normal sound emissions during inverter operation.
Check and ensure that all inverter communications are running well.
If there is any abnormal
situation, contact the
customer service centre.
Monthly
PV inverter
electrical
connections
Check that the AC, DC and communication cables are securely If there is any abnormal
connected; check that the PGND cables are securely connected;
situation, replace the cable
check that the cables are intact and have no signs of ageing.
or re-connect it.
- 25 -
Half-yearly
TROUBLESHOOTING
When the inverter has an exception, its basic common warning and exception handling methods are shown in the following table.
Alarm
code
Alarm name
Alarm explanation
A0
Grid AC overvoltage
The grid voltage exceeds the
allowed range.
A1
Grid AC undervoltage
The grid voltage exceeds the
allowed range.
A2
Grid AC absent
The grid voltage is absent.
A3
Grid AC over
frequency
The grid frequency exceeds the
allowed range.
A4
Grid AC underfrequency
The grid frequency exceeds the
allowed range.
B0
PV DC overvoltage
The PV module input voltage is
higher than the allowed range.
1. If the alarm occurs occasionally, it means that the grid is
operating abnormally; the inverter can automatically restore its
normal operating status after the grid returns normal.
2. If the alarm occurs repeatedly and it can automatically recover,
contact the local power company to obtain permission to modify
the inverter grid protection parameters with the app.
3. If the alarm occurs repeatedly for a long time, check whether:
1) The output breaker is closed
2) The output terminal is OK
3) The output cable conforms to the instructions of the User
Manual
Please measure the PV input voltage with a multimeter and
compare it with the “Max input voltage” shown on the inverter label.
If the PV input voltage is higher than the “Max input voltage”,
reduce the quantity of PV modules.
1. If the alarm occurs occasionally, it may be caused by an external
circuit; the inverter can automatically recover its normal operating
status once the fault is solved.
B1
B2
PV insulation
abnormal
The insulation resistance against 2. If the alarm occurs repeatedly or lasts a long time, take the
the ground is low before inverter following steps:
start-up.
1) Check if the output cable is stable.
2) Plug the PV strings one by one to find the abnormal PV string.
Check if the insulation resistance against the ground of the PV
strings is too low, or if the cable is broken or connected
incorrectly.
1. If the alarm occurs occasionally, it may be caused by an external
circuit; the inverter can automatically recover its normal operating
status once the fault is solved.
The insulation resistance against 2. If the alarm occurs repeatedly or lasts a long time, take the
Abnormal leakage
the ground at the input side
following steps:
current
decreases during inverter
1) Check if the output cable is stable.
operation.
2) Plug the PV strings one by one to find the abnormal PV string.
Check if the insulation resistance against the ground of the
PV strings is too low, or if the cable is broken or connected
incorrectly.
1. If the alarm occurs occasionally, the inverter can automatically
recover its normal operating status and no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, contact the
customer service centre.
C0
Control power low
Inverter internal power source
abnormal
B3
PV strings
abnormal
The PV strings have been
shielded for a long time or are
deteriorating.
1. Check whether the PV string is shielded.
2. If the PV string is clean and not shielded, check if the PV
modules are ageing or deteriorated, or if the cable/terminal is
abnormal.
B4
PV DC undervoltage
The PV module input voltage is
below the inverter’s default
protection value.
1. If the alarm occurs during weak sunlight conditions (in the
morning or at dawn, during rain, etc.), this is normal and no action
is needed.
2. If not, check if there is a PV module connection short-circuit.
B5
Weak PV radiation
The PV module power is less
than the minimum inverter
operating power.
C2
Output DC overcurrent
This is due to weak sunlight. No action is needed.
1. If the alarm occurs occasionally, this is due to temporary
abnormal grid voltage and the inverter can automatically recover
The DC component current in the
its normal operating status, so no action is needed.
grid exceeds the allowed range.
2. If the alarm occurs repeatedly or lasts a long time, contact the
customer service centre.
- 26 -
Inverter relay
abnormal
C3
Inverter overtemperature
C5
The output relay cannot be
closed.
1. If the alarm occurs occasionally, this is due to temporary
abnormal grid voltage and the inverter can automatically recover
its normal operating status, so no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, check if the
output neutral and live lines are inversely connected. If not, please
contact the customer service centre.
Inverter internal temperature
high.
1. If the alarm occurs occasionally, the inverter can automatically
recover its normal operating status and no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, check if the
installation site is exposed to direct sunlight, that it is well-ventilated
and if the ambient temperature is too high. If not, contact the
customer service centre.
Residual current test failed
during inverter start-up.
1. If the alarm occurs occasionally, it may be caused by an
abnormal external circuit; the inverter can automatically recover its
normal operating status once the fault is solved.
2. If the alarm occurs repeatedly or lasts a long time, check if the
insulation resistance against the ground of the PV strings is too
low, or if the cable is broken or connected incorrectly.
C6
Abnormal leakage
current HCT
B7
PV string reverse
C7
System type error
Internal warning
C8
Fan lock
Fan abnormal
C9
BUS voltage
imbalance
Internal warning
CA
BUS over-voltage
Internal warning
1. If the alarm occurs occasionally, the inverter can automatically
recover its normal operating status and no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, contact the
customer service centre.
Cb
Internal
communication
error
Internal warning
Please contact the customer service centre.
CC
Software
incompatibility
Internal warning
Please contact the customer service centre.
Cd
EEPROM error
Internal warning
Please contact the customer service centre.
CE
Consistent
warning
Internal warning
Please contact the customer service centre.
Internal warning
1. If the alarm occurs occasionally, the inverter can automatically
recover its normal operating status and no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, contact the
customer service centre.
Internal warning
1. If the alarm occurs occasionally, the inverter can automatically
recover its normal operating status and no action is needed.
2. If the alarm occurs repeatedly or lasts a long time, contact the
customer service centre.
CF
CG
Inverter abnormal
BOOST abnormal
NOTE
The cables of the PV strings are Check whether the cables of the PV strings are correctly
connected reversely.
connected. If they are connected reversely, reconnect the cables.
Please contact the customer service centre.
1. If the alarm occurs occasionally, restart the inverter.
2. If the alarm occurs repeatedly or lasts a long time, check if the
fan is clogged. If not, please contact the customer service centre.
If you cannot clear the preceding alarm according to the recommended measures, contact your dealer promptly.
- 27 -
Removing the Inverter
Perform the following procedures to remove the inverter:
Step 1: Turn off the inverter (see dedicated chapter).
Step 2: Disconnect all cables from the inverter, including any communication cables, DC input and AC output power cables, and
PGND cables, as shown in the following figure.
WARNING
NOTE
Before removing the DC input connector, double-check that the DC input switch is turned to OFF to avoid
inverter damage and personal injury.
When removing the DC input connectors, insert the removal spanner onto the bayonet, press the spanner
down and take out the connector carefully.
Step 3: Unscrew the fixing screws that fasten the inverter to the rear panel.
Step 4: Remove the inverter from the rear panel.
Step 5: Remove the rear panel.
STORAGE
This chapter describes the storage requirements for the inverter.
The following storage instructions apply if the PV inverter will not be deployed immediately:
• Do not unpack the inverter (add desiccant in the original box if the PV inverter is unpacked).
• Store the PV inverter within a temperature range of –40℃ to +70℃ and with the relative humidity of between 0 and 100% (no
condensing).
• The PV inverter should be stored in a clean and dry place, protected from dust and water vapour corrosion.
• Do not position the inverter tilting frontwards, tilting excessively backwards, tilting sideways, or upside-down.
• Conduct periodic inspections during storage.
• Replace the packaging materials immediately if any rodent bites are found.
• Ensure that qualified personnel inspect and test the inverter before use if it has been stored for a long time.
DISPOSAL OF THE INVERTER
The PV inverter and its packing case are made from environment-friendly material. If its service life has expired, do NOT dispose of
the inverter with household waste; dispose of it in accordance with local rules for the disposal of electrical equipment waste.
- 28 -
CONFIGURATION & MONITORING
INTRODUCTION
The PV inverters of this series are equipped with an integrated dual-channel Wi-Fi connection. Using a dedicated “RS Connect” app,
it is possible to make a local connection to the system using the inverter as an access point (channel 1) and perform pre-configuration
activities, such as the autotest and performance and analysis parameters instantaneous and periodic production measurements.
The second Wi-Fi channel allows the connection with the own home router for sending information to the Riello Solartech cloud that
will be visualised on the “RS Monitoring” supervision web portal.
For installation and configuration settings, use the dedicated RS Connect app.
For inverter energy production monitoring, use the RS Connect app or register with the Riello RS Monitoring cloud portal on
www.riello-rsmonitoring.com.
“RS CONNECT” APP
RS Connect
The RS Connect app is compatible with Android and iOS systems. It can be downloaded for free from Google Play and App Store.
With its simple and user-friendly graphic interface, the app can be used to configure the system, manage the autotest and analyse
the operating conditions of the system.
In addition, the monitoring and cloud login can be accessed directly from the homepage.
Preliminary configuration
1.
2.
Download the RS Connect APP.
Access to Wi-Fi settings of your smartphone and connect to the inverter Wi-Fi (The SSID of the inverter Wi-Fi is made up of
the inverter model name RS x.x + serial number S/N of the inverter). Default password is: 12345678
NOTE: the inverter must be turned on (stand-by or operating).
Example of inverter Wi-Fi among the list of available Wi-Fi connections.
- 29 -
3.
Start the RS Connect app and select "Connect Inverter"
4.
The following screen will appear; select the inverter from the list.
NOTE: for some devices, it is necessary to enable the position function.
Select the inverter by clicking on the serial number.
5.
At this point, the MAIN screen will appear.
Starting from Main page, it is possible to view the grid connection status, the
connection to Wi-Fi router status, the graph of instantaneous power production,
current, power, peak power, daily energy, total energy and ambient temperature
values.
In addition, the DC parameters (voltage and current at the inverter input) and the
inverter output AC parameters (voltage and current, power factor, frequency, active
power and reactive power) are displayed.
- 30 -
6.
From the Main page the following menus can be accessed:
History / Production / Maintenance / Settings / Autotest/ Power Limiter
History
This page shows the list of last 128 events and alarms that have occurred.
Production
This page shows the daily / monthly / yearly energy production graphs.
- 31 -
Maintenance
This menu is reserved for technical service personnel. Not available for standard users.
Settings
This menu is used to set:
Date and time
Wi-Fi connection with own router
RS484 connection configuration
Advanced settings are reserved for technical service personnel. Not available for standard users.
Autotest
This menu allows for easily starting the AUTOTEST process by simply pressing on START button.
After that Autotest is executed is possible download the result pressing the relative button in the bottom of the page*.
A file called Autotest(date).csv will be saved in the root of the mobile phone.
*NOTE: this function, at the moment, is available only for Android devices
- 32 -
Power Limiter
This menu can be used to enable the power limiter function. Refer to the power limiter optional kit for further details and setting
instructions.
Cloud Connection via App
To use this feature, you must first create an account and register your own solar plant on the Riello Solartech cloud portal at
www.riello-rsmonitoring.com.
Start the RS Connect app and login with the account name and password (the same ones used to register with the Riello Solartech
cloud portal).
LOGIN to your account
If the inverter is correctly connected to the cloud through your own router, after the login you can view an enhanced monitoring system
in this area including:
Day / month / year and configurable time-period graphs relative to the power, energy and many other parameters.
Electrical parameters relative to the instantaneous or historical data of each inverter; plant production.
- 33 -
“RS MONITORING” CLOUD PORTAL
RS Monitoring is the name of the portal for Riello Solartech inverters.
It is a professional monitoring system that strictly controls every type of PV system and the environment in which it is located. Useful
for small, necessary for medium and large plants, RS Monitoring communicates data and information to users in real time. RS
Monitoring allows real-time supervision of the performance of the systems that send data to the Cloud via the Wi-Fi connection
integrated in the inverter.
The processing of this data, in addition to weather and environmental data, allows for keeping the systems totally under control.
By registering at the web portal www.riello-rsmonitoring.com.it. it is possible to monitor the production and consumption trends of one
or more photovoltaic systems by logging in with a single account. Furthermore, it is possible to activate the reception of fault alarm
messages and those related to production. The types of messages are mail alerts.
The user can choose to modify the references of the e-mail addresses to which messages and other alarms will be delivered.
The platform provides for the management of an ordered and summary dashboard of all the PV fields monitored for each user with
relative indications on the status and production of the plant.
It is possible to access detailed information on a single inverter in a selected system: status, power, energy and many other
parameters on a daily, monthly, annual basis; status code and inverter error. It is possible to compare inverter performances and
create reports.
Refer to the www.riello-solartech.com website for further details and registrations instructions.
The RS Monitoring system allows real-time displays and diagnostics of all the information relating to the photovoltaic systems, in
terms of power, energy and the status of the inverters. With this system, all users can monitor, view and analyse the highly-detailed
results of all their photovoltaic plants (through previously configuring the system itself; see the paragraph “Configuration panel –
Settings”).
The system is equipped with an ALERT Service, which is detailed and configurable, so that users can be informed at all times via
email about any errors or malfunctions of the plant. These alarms can be notified on the portal through the alarm icon.
Users can access the RS Monitoring Portal via the URL riello-rsmonitoring.com, by entering their Username and Password. If the
user is not yet registered, they will obviously need to do so, by clicking on the “Sign Up!” link at the bottom of the page to access the
RS Monitoring - Account Registration Page.
After entering the portal, users can access the display of their plants or the RS Monitoring Configuration Panel, by clicking the button
in the top right-hand corner (user icon) and then “Settings”.
Through appropriate management, starting from the RS Monitoring system, it is possible to make requests from external APPs (the
RS Connect APP) to obtain data that is available on the Portal.
The RS Monitoring system can be used in Italian and English.
- 34 -
Access to the RS Monitoring portal
To access the RS Monitoring portal after initial registration, a user will need to connect to the URL riello-rsmonitoring.com, and
log in by entering their Username and Password (see Figure 1).
If the user is not yet registered, they will need to do so by clicking on the “Sign Up!” link at the bottom of the page.
Figure 1: Login page
After registration, the user will receive a confirmation email containing their Username and Password for access to the RS Monitoring
portal. From this moment onwards, the user can use a configuration menu to create or acquire one of their systems and configure it
according to its features. The user can display a summary Dashboard for each plant and view other sections to monitor its operation
in real time and download relevant data.
•
User registration
All users must register on the portal, either independently or by asking their Supervisor (e.g. their own installer) to perform the
procedure on their behalf.
Registration is performed via a specific registration panel on the portal. Via the URL riello-rsmonitoring.com, users must click on
the “Sign Up!” link at the bottom of the page to gain access to the account registration page.
Figure 2 shows the user account registration page.
Figure 2: Registration page
Any user can create an account via the registration page, by simply filling in the registration form and choosing the language they
wish to use on the portal (this can also be changed subsequently).
- 35 -
All users must register by entering the following information:
a.
Username (Account User Name, represented by their email address)
b.
Password (Account User Password)
c.
Full Name (e.g. Name and Surname)
d.
Default language
e.
Authorisation for data processing (Privacy)
After registration, the user will receive a confirmation email containing their Username and Password for access to the RS Monitoring
portal.
•
List of Plants
After logging in to the RS Monitoring portal, a user will access the list of plants, if they have more than one plant. Otherwise the user
will have direct access to their dashboard.
Initially, the list of plants will be empty and, therefore, it will be necessary to create a plant, by accessing the configuration page via
the settings menu and clicking on the user icon in the top right-hand corner.
The list of plants page can be reached from all pages on the site, by clicking on the user icon which provides access to the plant list
menu.
When the plants have been configured, summary information will be provided for each field displayed regarding daily production and
the alarm status of the field. By clicking on the name of a plant, a user can access the relevant dashboard. In addition, a rapid search
for a particular plant will always be available via a special filter and the chosen language can also be changed.
Figure 3: List of fields
•
Configuration panel - Settings
The RS Monitoring configuration panel can be reached from all pages on the site by clicking on the user icon and then the settings
menu. It features three sections: Account Settings, Add Plant, Amend Plant.
Account Settings
In the Account Settings section, one can amend the user information that was defined during registration, connect a logo with the
user and, if required, change the account password.
User Information
In User Information, one can change the (obligatory) name of the user that is displayed on all pages of the site next to the user
icon, the Tax ID Code/VAT No., Street, Post Code, Town/City, Country and telephone number associated with them. In addition,
one can also change the default language used on the portal.
Change Logo
In this section, the user can upload an image that will become the user logo and will be displayed on the dashboards of all their
plants. This image is univocal for each individual user and can only be displayed by that person.
Change Password
A user can use this section at any time to change their password used to access the RSmonitoring portal.
- 36 -
Add Plant
In the Add Plant section, a user can create their own plant or acquire one created by another user (e.g. their installer).
Create Plant
The Create Plant screen allows a user to initialise their field. The user must:
•
Indicate the name to be associated with the field, the nominal power and the incentive tariff (on the inverter dashboard, this
value will be essential in order to calculate earnings);
•
Enter the location (address/street/...), and by clicking on Obtain Position, the system will obtain the latitude, longitude and
time zone of the plant (essential for generating the times of the packages received by the inverters associated with the
field).
After the field creation has been completed, if the procedure has been successful, a message will be displayed confirming this
and then the field which has just been created will be associated with the account.
At this point, an “empty” plant will now exist to which one or more inverters will need to be associated.
Acquire Plant
If another user (e.g. an installer) has created and configured the plant, it can be acquired directly via the Acquire Plant section.
To use the Acquire Plant function, the user must enter one of the S/N serial numbers present on it and click on “search”. Once it
has been established that the relevant S/N actually exists on that plant, the user can acquire it.
Modify Plant
On the Modify Plant screen, the user can display the list of fields created by and associated with them, and by clicking on one of
them, they can amend some of the information that was entered when the field was created (via the Modify Plant, Mail Activation,
Plant Image sections) and add/remove inverters in the Inverter List section.
Modify Plant
In this section, the user can change the name of the plant, the nominal power and the incentive tariff that was entered when the
plant was created;
If the user is not the creator of the plant, they will only be able to change the incentive tariff, allowing them to amend the
calculation regarding the plant earnings, to be displayed only through their account.
Mail Activation
Every user can decide independently and for each plant to enable/disable the email function for alarm emails to be sent to their
account.
Plant Image
With the Plant Image function, all users can upload an image for each field, to be displayed in the individual dashboard through
their own profile.
Inverter List
Only the creator of the plant can add and/or remove inverters.
When the plant is created, it will be empty and an inverter will need to be added to it, by entering the S/N in the appropriate field
and clicking on the “+” key. The inverter will be added to the plant if and only, if:
a)
The S/N of the inverter meets the reliability requirements for the serial numbers defined by RPS and that the inverter with
that S/N has already been in communication with the server.
b)
The S/N of the inverter is not already associated with any plant.
Once the inverters have been added to the plant, there will be a list of inverters and next to each inverter there will be a “-” sign
which can be used to remove the inverter from the list.
- 37 -
•
Dashboard
With the Smart Dashboard, customers and maintenance staff of a particular photovoltaic plant will have access in real time, and at
all times, to information relating to the nominal power on the DC and AC sides; the daily, weekly, monthly, yearly and total energy,
and also the status of the devices (when necessary, there will be a notice next to each alarm icon).
Figure 4: Dashboard
The first box in the dashboard will show information about the user and the field, with the date of installation, the dimensions and
location of the field, the current time at the plant location, the logo and image (default items or those entered by the user during
configuration) and information relating to earnings (calculated on the basis of the incentive tariff defined by the user for the plant), the
number of trees planted and CO2 savings.
The second box will contain information on the energy relating to the entire plant and a button for the choice of chart to be displayed
in the third box (field or individual inverter level). This chart will display the instantaneous DC and AC power values on an inverter
level (for each individual inverter) and on a field level (i.e. the sum of all the inverters that make up the field).
Based on the inverter associated with the plant, this chart will adapt to its characteristics. It will be possible to notice the differences
between inverters with single, double or treble MPPT.
The dashboard colours will allow the user to follow the flow of energy produced, in a highly intuitive manner, and if there is any
anomaly on the DC or AC side.
The time of the last update relating to the plant or the selected device will be shown below the chart.
At the top of the page, there will be a menu allowing you to access the dashboard itself and also the Data, Alarm Log and Reports
pages. The same menu will also allow the user to change the language of the portal for the current session.
- 38 -
•
Data
The Data section allows the user to display all the information regarding their plant on a field or single inverter level.
Figure 5: Data Section
Plant data
This page allows the user to display the information on a plant level, showing in real time the power or energy of the plant
(calculated as the sum of the powers/energies of the inverters associated with it) for the current day; and by using the appropriate
datapickers, the user can view the same information for different days/weeks/months/years.
Single Inverter
To view the information for an individual inverter, the user will need to use that section. By using the appropriate datapickers and
selecting the inverter of the plant in question, one can display the AC Data (power, voltage, current, frequency), the Inverter Data
(temperature), MPPT Data (MPPT power, MPPT voltage, MPPT current), DC Data Strings (DC power, DC voltage, DC current) and
Periodic Data (weekly energy, monthly energy, annual energy, total energy).
Inverter Comparison
In this section, one can compare 2 curve graphs. One can choose the same inverter or 2 different inverters, the same date or 2
different dates and the same measurement or 2 different measurements. If the selected measurement is the same, the 2 graphs will
overlap in a single graph; conversely, 2 separate graphs will be displayed side-by-side.
- 39 -
History
The History log section will provide the customer with information regarding the exact moment when an IN or OUT alarm is
triggered for the inverters of the plant; by selecting a specific time period, one can view the information on the screen (by clicking on
Load Log) or download an excel file which contains this data (by clicking on Download Events Log).
Figure 6: Alarm Log Section
Reports
The Reports section will provide the customer with information on the measurements of the inverters of the plant; by selecting a
specific time period, one can view on the screen the power measurements of the inverters (by clicking on Load Log) or download
an Excel file which contains all the measurement data, associated with all the inverters of the plant, in that time period (by clicking
on Download Events Log).
Figure 7: Reports Section
- 40 -
Service Alert and Management of Alarms
The RS Monitoring system is equipped with an ALERT Service, which is detailed and configurable, so that users can be informed at
all times via email about any errors or malfunctions of the plant.
The management of alarms is divided into the following groups:
GROUP 1 - Absence of communication: This error is generated when packages are not sent by an inverter for more than 8 hours.
After this time, an alarm email is sent to the customer and the error is notified on the portal. This control is performed 24 hours a day.
GROUP 2 – Energy production zero: This error is generated when the packages from the inverter under examination show a power
value of zero for more than 8 consecutive hours. After this time, an alarm email is sent to the customer and the error is notified on
the portal. This control is only performed during daytime hours (dawn till dusk)
GROUP 3 – Alarms generated by the inverters:
agreed with RPS (see Table 1).
These errors, sent by the inverters are managed according to specifications
Table 1: Management of Group 3 alarms
- 41 -
APPENDIX
TECHNICAL SPECIFICATIONS
Model
RS 1.5
RS 2.0
RS 3.0
RS 4.0
RS 5.0
RS 6.0
97.6%
97.6%
97.5%
97.4%
97.4%
97.4%
96.8%
96.8%
96.9%
97.1%
Efficiency
Max efficiency
European efficiency
96.1%
96.6%
Input (PV)
Max input voltage
600 V
Rated input voltage
360 V
Max input current
Max short-circuit current
12.5 A
22 A (2x11 A)
15 A
30 A (2x15 A)
Start input voltage / Min operating voltage
90 V / 70 V
MPPT operating voltage range
90 V–580 V
MPPT operating voltage range (full-load)
130 V–520 V
170 V–520 V
240 V–520 V
190V-520V
240 V–520 V
Max number of PV strings
1
2 (1/1)
No. of MPPTs
1
2
300 V–520 V
Output (grid)
Rated AC active power
1,500 W
2,000 W
3,000 W
4000 W
5,000 W
6,000 W
Max AC apparent power
1,650 VA
2,200 VA
3,300 VA
4400 VA
5,500 VA
6,600 VA
Max AC active power (PF=1)
1,650 W
2,200 W
3,300 W
4400 W
5,500 W
6,600 W
7.2 A
9.5 A
14.3 A
19.1A
23.8 A
28.6 A
Max AC output current
220 V / 230 V, L+N+PE
Rated AC voltage
AC voltage range*
160 V–300 V
Rated grid frequency
50 Hz / 60 Hz
45 Hz–55 Hz / 55 Hz–65 Hz
Grid frequency range**
<3% (rated power)
THDI
<0.5% ln
DC current injection
> 0.99 rated power (adjustable 0.8 leading - 0.8 lagging)
Power factor
Recommended circuit breaker
10A Z or B curve
16A Z or B curve 20A Z or B curve 25A Z or B curve 32A Z or B curve
Protection
DC switch
Yes
Anti-islanding protection
Yes
AC over-current protection
Yes
AC short-circuit protection
Yes
DC reverse connection
Yes
AC Type III
Surge arrester
Insulation detection
Yes
Leakage current protection
Yes
General
Transformerless
Topology
IP Rating
IP65
Night self-consumption
<5W
Natural cooling
Cooling
-25℃ to 60℃
Operating temperature range
0–100%
Relative humidity range
4,000 m (> 2,000 m derating)
Max operating altitude
< 30 dB (measured at 1 m)
Noise
Dimensions (W*H*D)
Weight
298x377x130 mm
367x467x135 mm
9.3 kg
12.9 kg
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HMI & COM
Wireless & app + LED, LCD
Display
Wi-Fi (integrated), RS485 (optional)
Communication
Certification
IEC62109-1, IEC62109-2
Safety
EMC
EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4
CEI 0-21, RD1699
Grid code
5 Years/10 Years (optional)
Warranty
Notes:
* The grid power voltage range can be set according to national voltage standards.
** The power grid frequency range can be set according to national grid standards.
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0MNPS11K5RUENUB