Njoy Astris 3K/1P1T1 User manual

Astris 3K/5K/6K Installaon Manual
(Hardware)
Manual de instalare
(Hardware)
Before using this product, carefully read all product documentaon and retain it for future reference.
316.06.23.0
SIN110030001ATCU0B - Astris 3K/1P1T1
SIN110030001ATCU1B - Astris 3K/1P1T1
SIN120040002ATCU0B - Astris 4K/1P2T2
SIN120050002ATCU0B - Astris 5K/1P2T2
SIN120060002ATCU0B - Astris 6K/1P2T2

Contents
Safety 2
1.1 Personnel Safety 2
1.2 PV Inverter Protecon 3
1.3 Installaon Safety 3
1.4 Electrical Connecons 3
1.5 Operang and Commissioning 4
1.6 Maintenance 4
1.7 Addional Informaon 5
Overview of the Inverter 5
2.1 Funconal Models 5
2.2 Network Applicaon 6
2.3 Outline and Dimensions 6
2.4 Working Process 8
2.5 Working Modes 9
Storage 10
Installaon 11
4.1 Checking the Outer Packing 11
4.2 Moving the inverter 12
4.3 Idenfy the PV Inverter 12
4.4 Installaon Requirements 13
4.5 Installing a Rear Panel 17
4.6 Installing the inverter 20
ElectricalConnecons 21
5.1 Connecng Protecon Ground (PGND) Cables 21
5.2 Connecng AC Output Cables 23
5.3 Connecng the PV Strings 26
5.4 Connecng Communicaon Cables 31
5.5 Power limit (oponal) 32
5.6 Installaon Vericaon 34
SystemOperaon 35
6.1 Powering ON the Inverter 35
6.2 Powering OFF the Inverter 35
UserInterface 36
7.1 HMI specicaon denion 37
7.2 LCD automac-page-turning display 38

English
Română
Maintenance 39
8.1 Roune Maintenance 39
8.2 Inverter Troubleshoong 41
8.3 Removing the Inverter 43
Disposal of the Inverter 44

1
Please read this manual before using the product.
This user manual introduces the inverter in terms of its installaon,
electrical connecons, operaon, commissioning, maintenance,
and troubleshoong. Please read through the manual carefully
before installing and using the inverter, and keep the manual well
for future reference.
Forward
NOTE!
This user manual is subject to change without prior noce.
ApplicaonModel
Grid-ed PV string inverter
- 3K/5K/6K
Applicable Personnel
This user manual is intended for photovoltaic (PV) inverter operang
personnel and qualied electrical technicians.

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SymbolConvenons
Safety symbols used in this manual, which highlight potenal safety risks
and important safety informaon, are listed as follows:
Symbol Description
DANGER Indicates an imminently hazardous situaon which, if not
correctly followed, will result in serious injury or death.
WARNING Indicates a potenally hazardous situaon which, if not
correctly followed, could result in serious injury or death.
CAUTION Indicates a potenally hazardous situaon which, if not
correctly followed, could result in moderate or minor injury.
NOTICE Indicates a potenally hazardous situaon which, if not correctly
followed, could result in equipment failure, or property damage.
NOTE
Calls aenon to important informaon, best pracces and
ps: supplement addional safety instrucons for your beer
use of the PV inverter to reduce the waste of your resource.
REFER Refer to documentaon (Remind operators to refer to the
documentaon shipped with the inverter).
Safety
1
Before beginning your journey, please read these safety precauons in
User Manual carefully.
1.1 Personnel Safety
a. The PV inverter must be installed, electronically connected, operated
and maintained through specially trained technician;
b. The qualied technician must be familiar with the safety regulaons of
electrical system working process of PV power generaon system, and
standards of local power grid;
c. The technician must read through this User Manual carefully and master
it before any operaon.

3
a. Do not tamper with any warning signs on the inverter enclosure because
these signs contain important informaon about safe operaon.
b. Do not remove or damage the nameplate on the inverter’s enclosure
because it contains important product informaon.
1.3InstallaonSafety
NOTE!
As soon as receiving the PV inverter, please check if it is damaged during its
transportaon. If yes, please contact your dealer immediately.
NOTE!
Please read the User Manual carefully before installing the PV inverter;
warranty or liability will be void from our company if damage is caused by
installaon faults.
a. Ensure there is no electronical connecons around ports of the PV
inverter before installing;
b. Adequate venlaon must be provided for inverter installaon locaon.
Mount the inverter in vercal direcon, and ensure that no object is put
on the heat sink aecng the cooling. (For details, refer to Chapter 4
Installaon).
1.4ElectricalConnecons
Before installing the inverter, check all electrical ports to ensure
no damage and no short circuit. Otherwise personal casualty and/
or re will occur.
DANGER
a. Input terminals of the PV inverter apply only to input terminals of
PV String; do not connect any other DC source to the input terminals.
b. Before connecng PV modules, ensure that its voltage is within the safe
range; when exposed to any sunlight, PV modules can generate high voltage.
c. All electrical connecons must meet the electrical standards of the
country or region.
1.2PVInverterProtecon

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d. Cables used in electrical connecons must be well xed, good insulaon,
and with appropriate specicaon.
1.5OperangandCommissioning
While the inverter operating, high voltage can lead to an electrical
shock hazard, and even cause personal casualties. Therefore,
operate the PV inverter strictly according to the safety precautions
in the user manual.
DANGER
When the photovoltaic array is exposed to light, it supplies a DC
voltage to the PCE.
WARNING
a. Before geng the permission of electrical power authority in the
country/region, the grid-ed PV inverter cannot start generate power.
b. Follow the procedures of commissioning described in the user manual
when commissioning the PV inverter.
c. Do not touch any other parts'surface except the DC switch when the PV
inverter is operang; its paral parts will be extremely hot and can cause
burns.
a. For personal safety, maintenance personnel must wear appropriate
personal protecve equipment (like insulaon gloves and protecve
shoes) for the inverter maintenance.
Power OFF all electrical terminals before the inverter maintenance;
strictly comply with the safety precautions in this document when
operating the inverter.
DANGER
1.6Maintenance

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b. Place temporary warning signs or erect fences to prevent unauthorized
access to the maintenance site.
c. Follow the procedures of maintenance spulated in the manual strictly.
d. Check the relevant safety and performance of the inverter; recfy any
faults that may compromise the inverter security performance before
restarng the inverter.
This chapter introduces the inverter and describes its funconal model,
network applicaon, appearance, dimensions, and working process etc.
This series is a single-phase grid-ed PV string inverter (transformer less)
that converts the DC power generated by PV strings into AC power and
feeds the power into power grid.
NOTE!
To avoid any other unforeseeable risk, contact your dealer immediately, if
there is any issue found during operaon.
1.7AddionalInformaon
2.1FunconalModels
2.1.1Funcon
Overview of the Inverter
2
The inverter is transformerless. Add an isolation transformer
before grounding the positive/ negative terminal of PV modules
(like Thin Film module) for operation.
WARNING
Do not connect PV modules in parallel to several PV inverters for
operation.
WARNING

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The series applies to grid-ed PV power systems for outdoor power
staons. Typically, a grid-ed PV power system consists of PV modules,
grid-ed inverters, AC distribuon units, and low-voltage power grid, as
shown in Figure 2.2.
Figure 2.1 shows a model number of the inverter, using 3K and 5K/6K
as an example.
2.1.2ModelDescripon
2.2NetworkApplicaon
2.3OutlineandDimensions
2.2.1Grid-edPVPowerSystems
2.3.1Outline
Figures2.3 to 2.7 show the outline of the inverters as follows:
Figure 2.1 Model number descripons
Figure 2.2 a low-voltage grid-ed PV power system
Figure2.3 - 3K PV Inverter with Single MPPT Input (unit: mm)
Astris 5K

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Figure 2.4 - 5K/6K PV Inverter with Dual MPPT Input (unit: mm)
Figure 2.5 The front view and amplicaon eect of LED indicator area
Figure2.6 The rear view of this series of inverter
3K PV Inverter with Single MPPT Input 5K/6K PV Inverter with Dual MPPT Input

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Figure 2.7 The boom view of this series of inverter
Figure 2.8 circuit diagram
1. PV input connectors
2. COM2(RS-485/meter/CT/DI)
3. COM1(WIFI/GPRS/Ethernet/ RS-485)
4. AC output connector
5. External protect
6. Vent valve
7. DC isola
3K 5K/6K
2.4 Working Process
2.4.1BasicprincipleDescripon
2.4.2 Circuit Diagrams
The 5K/6K PV Inverter with Dual MPPT Input receives input from two
strings of PV panel (3K PV Inverter with Single MPPT Input receives input
from only one string of PV panel). Then the inputs are grouped into two
independent MPPT routes inside the inverter to track the maximum
power point of the PV panel. The two MPPT power is then converted into
DC Bus, then the DC power is converted to AC power through an inverter
circuit. Finally the AC power is fed to the Power grid. EMI ler is used on
both the DC and AC sides to reduce the electromagnec inference; Surge
protecon is supported on AC side.
Figure 2.8 shows the circuit diagram for the 3K PV Inverter with Single
MPPT Input:

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Figure2.9circuit diagram
Table 2.1 Working modes descripon
Figure 2.9 shows the circuit diagram for the 5K/6K Inverter with Dual
MPPT Input:
Three working modes of the inverter are shown as follows: standby,
operang, and shutdown.
Table 2.1 shows the condions for the inverter to switch between
working modes.
2.5 Working Modes
Modes Descripon
Standby
The PV inverter enters the standby mode when
>the input voltage of PV Strings can enable auxiliary power
supply to run, but cannot meet the inverter operaon
requirements.
>the input voltage of PV Strings can meet the inverter to-
start requirements, but cannot meet its minimum power
requirements.
Operang
When the PV inverter is grid-ed and generates electricity, it
> tracks the maximum power point to maximize the PV String
output.
> converts DC power from PV strings into AC power and feeds
the power to the power grid.
The PV inverter will enter to the shutdown mode if detecng a
fault or a shutdown command.
Shutdown
The PV inverter switches from standby or operang mode to
shutdown mode if detecng a fault or a shutdown command.
The inverter switches from shutdown mode to standby mode
if receiving a Startup command or detecng that a fault is
reced.

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This chapter describes the storage requirements for the inverter.
The following storage instrucons apply if the PV inverter will not be
deployed immediately:
> Do not unpack the inverter (put desiccant in the original box if the PV
inverter is unpacked).
> Store the PV inverter at a temperature range of -25°C to +60°C and with
the relave humidity of 0% to 100% (no condensing).
> The PV inverter should be stored in a clean and dry place and be
protected from dust and water vapor corrosion.
> 3K PV Inverter with Single MPPT Input a maximum of eight layers of
inverters can be stacked, 5K/6K PV Inverter with Dual MPPT Input a
maximum of six layers of inverters can be stacked.
> Do not posion the inverter at a front lt, excessive back lt, or side lt,
or upside down.
> Conduct periodic inspecon during storage. Replace the packing
materials immediately if any rodent bites are found.
> Ensure that qualied personnel inspect and test the inverter before use
if it has been stored for a long me.
NOTE!
instrucons: if the equipment is used in a manner not specied by the
manufacturer, the protecon provided by the equipment may be impaired.
Storage
3

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Installaon
4
Do not install the inverter on ammable building materials or in
an area where ammable or explosive materials are stored.
DANGER
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/burn.
CAUTION
4.1 Checking the Outer Packing
a. When receiving the inverter, check that the packing materials are intact.
b. Aer unpacking, check that the deliverables are complete, intact, and
consistent with your order list.
c. Examine the PV inverter and its ngs for damage such as scraps and
cracks.
Items Deliverables
AThe inverter
BRear panel
C AC output connector
D File package
E DC terminal connector group
FScrews
G Removal tool for DC connector
HExpansion screw group
(reserved for ghtening the support and rear panel)
Figures 4.1 The deliverables: The inverter and its ngs

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Română
4.2 Moving the inverter
Aer checking the outer packing, move the PV inverter to the designated
installaon posion horizontally. Hold the handles on both sides of the
inverter, as shown in Figure 4.2.
4.3IdenfythePVInverter
4.3.1Nameplate
Aer moving the PV inverter from packing box, idenfy it by reading its
nameplate labeled on the side of the inverter. The nameplate contains
important product informaon: the model informaon, communicaons/
technical specicaons, and compliance symbols.
Figure 4.2 Moving the inverter
NOTE!
If any damage menoned above is found, contact the dealer immediately.
NOTE!
PV modules for non-isolated inverters. Non-isolated inverters shall be provided
with installaon instrucons that require PV modules that have an IEC 61730
Class A rang. If the maximum AC mains operang voltage is higher than the PV
array maximum system voltage then the instrucons shall require PV modules
that have a maximum system voltage rang based upon the AC mains voltage.
>Do not place the PV inverter with its wiring terminals contacting
the oor because the power ports and signal ports at the bottom of
the device are not designed to support the weight of the inverter.
>When placing the inverter on the oor horizontally, put foam or
paper under to protect its enclosure.
CAUTION

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4.3.2ComplianceandSafetySymbols
Safety symbol Descripon
Electrical shock!
There are residual voltages in the PV inverter. It needs 5 minutes
to nish discharge.
The PV inverter must not be touched when in operaon. Its
enclosure and heat sinks are extremely hot.
Electrical shock! This part is charged. Only qualied and/or trained electrical
technicians are allowed to perform operaons on the inverter.
If the inverter service life has expired, dispose it in accordance with local
rules for disposal of electrical equipment waste. Do not dispose the PV
inverter with household garbage.
The PV inverter is compliant with TUV.
5 mins
4.4InstallaonRequirements
Applies to wall-mounng installaon, as described below in detail.
4.4.1DeterminingtheInstallaonPosion
BasicRequirements
a. The inverter is protected to IP65 and can be installed indoors or
outdoors.
b. The installaon method and posion must be appropriate for the
weight and dimensions of the inverter.
c. 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 operaon.
d. Do not install the inverter in an area that stores ammable or explosive
materials.

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InstallaonEnvironmentRequirements
a. The ambient temperature must be below 50°C to ensure the inverter’s
opmal operaon and extend its service life.
b. The inverter must be installed in a well venlated environment to
ensure good heat dissipaon.
c. The inverter must be free from direct exposure to sunlight, rain, and
snow to extend 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 Figure4.3.
CarrierRequirements
a. The carrier where the inverter is installed must be re-proof. Do not
install the inverter on ammable building materials.
b. The wall must be solid enough to bear the weight of the inverter.
c. Do not install the inverter on a wall made of gypsum boards or similar
materials with weak sound insulaon to avoid noise disturbance in a
residenal area.
InstallaonSpaceRequirements
a. It is recommended that the inverter be installed at eye level to facilitate
operaon and maintenance.
b. Reserve enough clearance around the inverter to ensure sucient
space for installaon and heat dissipaon, as shown in Figure 4.4.
Figures4.3Installaon environment with awning (unit: mm)

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Figures 4.4 Installaon Space Requirements (unit: mm)
Figure 4.5 Installaon along the same line (unit: mm)
c. When installing mulple inverter, install them along the same line (as
shown in Figure 4.5) if sucient space is available, and install them in
triangle mode (as shown in Figure4.6) or in stacked mode (as shown in
Figure 4.7) if no sucient space is available. The installaon modes ensure
sucient space for installaon and heat dissipaon.

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Figure4.6 Installaon in triangle mode (unit: mm)
Figure 4.7 Installaon in stacked mode (unit: mm)
NOTE!
The clearance between mulple inverters must be increased to ensure proper
heat dissipaon when they are installed in a hot area.

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4.4.2InstallaonModeRequirements
Install the inverter upright or at a maximum back lt of 15 degrees to
facilitate heat dissipaon. Some correct / wrong installaon modes are
shown in Figures4.8&4.9 below.
4.5InstallingaRearPanel
Before installing the inverter, secure the rear panel to a wall.
Step 1 Move out the rear panel from the packing case.
Step 2 Determine the posions for drilling holes (as shown in Figure 4.10)
using the rear panel.
Figures 4.8 The correct installaon mode
Figures4.9 The wrong installaon modes
NOTE!
The wrong installaon will lead to failure of the inverter operaon.
NOTE!
The recommended 5K/6K inverter rear panel mounng combinaon
is hole 1, 4 or 2, 3.