GSHK 6K-15K User Manual

User Manual
Applicable model: 6K-15K
GS Holding GmbH
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User Manual - Contents
Contents
Forward
------------------------------------------------------ 1
Application Model - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1
Intended Audience - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Symbol Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2
1 Safety Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3
1.1 Personnel Safety- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3
1.2 PV Inverter Protection- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
1.3 Installation Safety- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3
1.4 Electrical Connections
--------------------------------------4
1.5 Operating and Commissioning- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
1.6 Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4
1.7 Additional Information- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5
2 Overview of the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6
2.1 Functional Models- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
2.1.1 Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
2.1.2 Model Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
2.2 Network Application- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
2.2.1 Grid-tied PV power Systems - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6
2.3 Outline and Dimensions- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
2.3.1 Dimensions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
2.3.2 Outline - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
2.4 Working Process - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.4.1 Basic principal Description - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.4.2 Circuit Diagrams - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9
2.5 Working Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
3 Storage
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11
4 Installation
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -12
4.1 Checking the Outer Packing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12
4.2 Moving the inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13
4.3 Identify the PV Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -13
4.3.1 Nameplate - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -13
4.3.2 Compliance and Safety Symbols - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -14
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User Manual - Contents
4.4 Installation Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14
4.4.1 Determining the Installation Position - - - - - - - - - - - - - - - - - - - - - - - - - - - 14
4.4.2 Installation Mode Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
4.5 Wall-mounting the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
5 Electrical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22
5.1 Connecting Protection Ground (PGND) Cables- - - - - - - - - - - - - - - - - - - - - - - 22
5.1.1 Preparation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22
5.1.2 Wiring Procedures- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 23
5.2 Connecting AC Output Cables- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 24
5.2.1 Preparation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -24
5.2.2 Procedure of Connecting AC Cables - - - - - - - - - - - - - - - - - - - - - - - - - - - -25
5.3 Connecting the PV Strings- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -27
5.3.1 Preparation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -28
5.4 Connecting Communications Cables- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31
5.4.1 Communications Mode Description- - - - - - - - - - - - - - - - - - - - - - - - - - - - -31
5.4.2 Connecting RS485 Communications Cables- - - - - - - - - - - - - - - - - - - - - - - 33
5.4.3 Setting RS485 Communications Address- - - - - - - - - - - - - - - - - - - - - - - - - 34
5.5 Installation Verification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 27
6 System Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
36
6.1 Powering ON the Inverter- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
6.2 Powering OFF the Inverter- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 36
7 User Interface- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 37
8 Maintenance- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 41
8.1 Routine Maintenance- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 41
8.2 Inverter warning and exception handling- - - - - - - - - - - - - - - - - - - - - - - - - - - - 42
8.3 Removing the Inverter- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -44
9 Quality Guarantee - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -46
9.1 Quality Terms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -46
9.2 Liability Waiver - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 46
10 Disposal of the Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -47
11 Technical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 48
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User Manual - Forward
Forward
Dear User,
Thank you so much for your choosing 6K-15K, the latest generation of grid-tied PV Strings inverter (herein after referred to as
the inverter) designed and developed by Group Solar.
This user manual introduces the inverter in terms of its installation, electrical connections, operation, commissioning,
maintenance, and troubleshooting. Please read through the manual carefully before installing and using the inverter, and keep
the manual well for future reference.
Application Model
Grid-tied PV string inverter
•
6K/8K/10K
•
12K/15K
Intended Audience
This user manual is intended for photovoltaic (PV) inverter operating personnel and qualified electrical technicians.
Notes:
This user manual is subject to change (specific please in kind prevail) without prior notice. The latest version of user
manual and other more information about the product are available from http://www.groupgshk.com, and/or by
consulting your dealer.
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User Manual - Forward
Symbol Conventions
Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed as follows:
Description
Symbol
&
&
&
&
D
mJ
DANGER
Indicates an imminently hazardous situation which, if not correctly followed, will result in
serious injury or death.
WARNING
Indicates a potentially hazardous situation which, if not correctly followed, could result in
serious injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not correctly followed, could result in
moderate or minor injury.
NOTICE
Indicates a potentially hazardous situation which, if not correctly followed, could result in
equipment failure to run, or property damage.
Calls attention to important information, best practices and tips: supplement additional
NOTE
safety instructions for your better use of the PV inverter to reduce the waste of your
resource.
REFER
Refer to documentation (Remind operators to refer to the documentation shipped with the
inverter).
2
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User Manual - Safety Precautions
1 Safety Precautions
Before beginning your journey, please read these safety precautions 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 qualified technician must be familiar with the safety regulations of electrical system, working process of PV power
generation system, and standards of local power grid;
c. The technician must read through this User Manual carefully and master it before any operation.
1.2 The PV Inverter Protection
&
NOTICE
As soon as receiving the PV inverter, please check if it is damaged during its transportation. If
yes, please contact your dealer immediately
a. Do not tamper with any warning signs on the inverter enclosure because these signs contain important information about safe
operation.
b. Do not remove or damage the nameplate on the inverter's enclosure because it contains important product information.
c. Do not remove the anti-dismantle label on the inverter's enclosure because it is the basis for product warranty.
1.3 Installation Safety
&
Please read the User Manual carefully before installing the PV inverter; warranty or liability will
NOTICE
be void from Group Solar if damage is caused by installation faults.
a. Ensure there is no electronical connections around ports of the PV inverter before installing;
b. Adequate ventilation must be provided for inverter installation location. Mount the inverter in vertical direction, and ensure
that no object is put on the heat sink affecting the cooling. (For details, refer to Chapter 4 Installation)
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User Manual - Safety Precautions
1.4 Electrical Connections
&
a.
DANGER
Before installing the inverter, check all electrical ports to ensure no damage and no
short circuit. Otherwise personal casualty and/or fire will occur.
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 connecting PV modules, ensure that is its voltage is within the safe range; when exposed to any sunlight, PV modules
can generate high voltage.
c.
All electrical connections must meet the electrical standards of the country or region.
d.
Cables used in electrical connections must be well fixed, good insulation, and with appropriate specification.
1.5 Operating and Commissioning
&
While the inverter operating, high voltage can lead to an electrical shock hazard, and even
DANGER
cause personal casualties. Therefore, operate the PV inverter strictly according to the safety
precautions in the user manual.
a. Before getting the permission of electrical power sector in the country/ region, the grid-tied 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 operating; its partial parts will be extremely
hot and can cause burns.
1.6 Maintenance
&
DANGER
Power OFF all electrical terminals before the inverter maintenance; strictly comply with the
safety precautions in this document when operating the inverter.
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User Manual - Safety Precautions
a. For personal safety, maintenance personnel must wear appropriate personal protective equipment (like insulation
gloves and protective shoes) for the inverter maintenance.
b. Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.
c. Follow the procedures of maintenance stipulated in the manual strictly.
d. Check the relevant safety and performance of the inverter; rectify any faults that may compromise the inverter security
performance before restarting the inverter.
1.7 Additional Information
&
NOTICE
To avoid any other unforeseeable risk, contact Group Solar immediately, if there is any issue
found during operation.
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User Manual - Overview of the Inverter
2 Overview of the Inverter
This chapter introduces the inverter and describes its functional model, network application, appearance, dimensions, and
working process etc.
2.1 Functional Models
2.1.1 Function
This series is a three-phase grid-tied PV string inverter (transformer less) that converts the DC power generated by PV strings into
AC power and feeds the power into power grid.
&.
&.
WARNING
The inverter is transformer less. 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.
2.1.2 Model Description
Figure 2.1 shows a model number of the inverter, using 6K as an example.
[
6K
�--- Power class code
Figure 2.1 Model number descriptions
l
2.2 Network Application
2.2.1 Grid-tied PV Power Systems
This series inverter applies to grid-tied PV power systems for industrial/commercial rooftops, fishing/farmers light complementary
power generation systems, and large ground-based power stations. Generally, these series inverters are used to low-voltage gridtied PV power system, as shown in Figure 2.2.
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User Manual - Overview of the Inverter
inverter
PV strings
AC Distribution Unit
low-voltage power grid
Figure 2.2 a low-voltage grid-tied PV power system
These series inverters support TN-S, TN-C, and TT power grids as shown in Figure 2.3.
Transformer
Transformer
Transformer
L1
L2
L3
Transformer
PEN
TN-S
TN-C
TN-C-S
Figure 2.3 Power grids supported by these series inverters
2.3 Outline and Dimensions
2.3.1 Dimensions
Figure 2.4 shows the dimensions of the inverter as follows:
�
.
385
�
[BJ
V
-
Figure 2.4 The dimensions of the inverter by front & lateral views (unit: mm)
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TT
User Manual - Overview of the Inverter
2.3.2 Outline
Figures 2.5 to 2.7 shows the outline of inverter as follows:
1. PV Indicator
2. Grid Indicator
3. COM Indicator
4. Warning Indicator
5. LCD (optional)
Figure 2.5 The front view and amplification effect of LED indicator area
Mounting bracket
Figure 2.6 The rear view of this series inverter
1. DC isolation breaker
2. PV Strings connectors
3. Communications interface
4. RS485
5. AC OUTPUT CONNECTORS
6. External Protection Ground interface
7. Vent valve
Figure 2.7 The bottom view of this series inverter
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User Manual - Overview of the Inverter
2.4 Working Process
2.4.1 Basic Principle Description
6K/8K/10K/12K/15K receive inputs from PV strings through DC switch and surge protection in order: there are 2 groups of PV strings
input terminals on DC input terminal of 6K/8K/1OK; there are 3 groups of PV strings input terminals on 12K/15K with the 2nd and
3rd routes terminals merging into one independent MPPT. Then the inputs are grouped into two MPPT routes inside the inverter to
track the maximum power point of the PV strings. These two MPPT power is then converted into DC Bus which is then converted to
AC power through an inverter circuit. Finally the converted AC power is fed to the Power grid through the inverter. Surge protection
and EMI filter are supported on both the DC and AC sides to reduce electromagnetic interference.
2.4.2 Circuit Diagrams
Figure 2.8 shows the circuit diagram for 6K/8K/10K.
+
MPPT
Route1
MPPT
Route2
Relay
PV DC
Switch
DC surge protector
---+-----�
----...---m
--+-+-+--1!!1
--+-+-+-.-,m
l lil
AC surge protector
Figure 2.8 circuit diagram
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AC EMI Filter
Inverter circuit
DC
EMI
Filter
1
User Manual - Overview of the Inverter
Figure 2.9 shows the circuit diagram for 12K/15K.
MPPT
Route1
+
MPPT
Route2
AC EMI Filter
Inverter circuit
DC
EMI
Filter
1
-m
------+---�
---+--+--.--RJ
---+--+-+-..-.
• PV DC [
Switch
crJ
m
l�
Relay
:
AC surge protector
DC surge protector
Figure 2.9 circuit diagram
2.5 Working Modes
Three working modes of the inverter are shown as follows: standby, operating, and shutdown. Table 2.1 shows the conditions
for the inverter to switch between working modes.
Modes
Description
The PV inverter enters the standby mode when
>the input voltage of PV Strings can enable auxiliary power supply to run,
Standby
but cannot meet the inverter operation requirements.
>the input voltage of PV Strings can meet the inverter to-start requirements,
but cannot meet its minimum power requirements.
When the PV inverter is grid-tied and generates electricity, it
Operating
> 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 detecting a fault or a shutdown command.
Shutdown
The PV inverter switches from standby or operating mode to shutdown mode if detecting a fault
or a shutdown command.
The inverter switches from shutdown mode to standby mode if receiving a Startup command or
detecting that a fault is rectified.
Table 2.1 Working modes description
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User Manual - Storage
3 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 (put desiccant in the original box if the PV inverter is unpacked).
> Store the PV inverter at a temperature range of -40℃ to +70℃ and with the relative 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.
> A maximum of six layers of inverters can be stacked.
> Do not position the inverter at a front tilt, excessive back tilt, or side tilt, or upside down.
> Conduct periodic inspection during storage. Replace the packing 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.
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User Manual - Installation
4 Installation
&
DANGER
&
CAUTION
Do not install the inverter on flammable building materials or in an area that stores flammable
or explosive materials.
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.
4.1 Checking the Outer Packing
a. When receiving the inverter, check that the packing materials are intact.
b. After unpacking, check that the deliverables are complete, intact, and consistent with your order list.
c. Examine the PV inverter and its fittings for damage such as scraps and cracks.
r�
The deliverables in the fittings of inverter
I [;;JI
I
®
I
l�I.
�,
@
�a
�
�
®
,r
�
Items
Deliverables
A
The inverter
B
Rear panel
C
D
E
F
®
File package
DC terminal connector group
screw
Bolt group
(reserved for tighteningthe support and rear panel)
Figures 4.1 The deliverables: The inverter and its fittings
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©
L______Q
User Manual - Installation
&
NOTICE
If any damage mentioned above is found, contact the dealer immediately.
4.2 Moving the inverter
After checking the outer packing, move the PV inverter to the designated installation position horizontally. Hold the handles
on both sides of the inverter, as shown in Figure 4.2.
Figure 4.2 Moving the inverter
&
&
CAUTION
CAUTION
The inverter is relatively heavy! To prevent device damage and personal injury, arrange two
people to move the inverter and handle with care.
>Do not place the PV inverter with its wiring terminals contacting the
floor 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 floor horizontally, put foam or
paper under to protect its enclosure.
4.3 Identify the PV Inverter
4.3.1 Nameplate
After moving the PV inverter from packing box, identify it by reading its nameplate labeled on the side of the inverter. T he
nameplate contains important product information: the model information, communications/ technical specifications, and
compliance symbols.
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User Manual - Installation
4.3.2 Compliance and Safety Symbols
Description
Safety symbol
Electrical shock!
There are residual voltages in the PV inverter. It needs 10 minutes to finish discharge.
The PV inverter must not be touched when in operation. Its enclosure and heat sinks are
extremely hot.
Electrical shock! This part is charged. Only qualified and I or trained electrical technicians are
allowed to perform operations on the inverter
If the inverter service life has expired, dispose ii 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.
4.4 Installation Requirements
According to installation position, one kind of physical installation is described below in detail: wall-mounting.
4.4.1 Determining the Installation Position
Basic Requirements
a.
The inverter is protected to IP65 and can be installed indoors or outdoors.
b.
The installation method and position 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 operation.
d.
Do not install the inverter in an area that stores flammable or explosive materials.
Installation Environment Requirements
a. The ambient temperature must be below 50℃ to ensure the inverter’s optimal operation
and extend its service life.
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User Manual - Installation
b. The inverter must be installed in a well ventilated environment to ensure good heat dissipation.
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.
I◄
>1000 ►I
[gJ
the front view
the lateral view
Figure 4.3 Installation environment with awning (unit: mm)
Carrier Requirements
a.
The carrier where the inverter is installed must be fire-proof. Do not install the inverter on flammable 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 insulation to avoid noise
disturbance in a residential area.
Installation Space Requirements
a.
b.
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
Figure 4.4.
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User Manual - Installation
>500
''
I
'I
I
:
I
:◄
:
:
:
I
>200 I
II
>200
�
I
:
�I
(
I
:
I
�}
:
i
:
i
0
----
>1000 '
►
:
,,
:
I
I
I
I
I
I
I
I
-----
the lateral view
the front view
Figure 4.4 Installation Space Requirements (unit: mm)
c. When installing multiple inverters, install them along the same line (as shown in Figure 4.5)
if sufficient 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 sufficient space is available. The installation modes ensure sufficient space for installation and heat
dissipation.
Figure 4.5 Installation along the same line (unit: mm)
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100
I
�;
Figure 4.6 Installation in triangle mode (unit: mm)
11
.,
'1
I
1
11
[gJ
·--
I
I
1
II
11
Il
l
·--·
I
I
200
[TI]
I
I
1000
Figure 4.7 Installation in stacked mode (unit: mm)
.&_
NOTICE
The clearance between multiple inverters must be increased to ensure proper heat
dissipation when they are installed in a hot area.
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User Manual - Installation
4.4.2 Installation Mode Requirements
Install the inverter upright or at a maximum back tilt of 15 degrees to facilitate heat dissipation. Below are some correct/ wrong
installation modes, as shown in Figures 4.8 & 4.9.
The correct installation mode
upright
back tilt
Figures 4.8 The correct installation mode
The wrong installation mode
Horizontally
Upside-down
Figure 4.9 The wrong installation modes
&
NOTICE
The wrong installation will lead to failure of the inverter operation.
4.5 Wall-mounting the Inverter
Before installing, you have to prepare expansion bolts (specification: M6*60; Quantity: 3)
Step 1 Move out the rear panel from packing case.
Step 2 Determine the positions for drilling holes (as shown in Figure 4.10) using the rear panel.
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User Manual - Installation
65
320
"'
NL_J___EE�
"'co
Figure 4.10 Positions determining (unit: mm)
Step 3 Level the hole position using a level, and mark the hole positions using a marker, as shown in Figure 4.11.
a level-----+. ""'"'
-'-" ""'"''"'"""""'"'"'
0
0
Figure 4.11 marking the hole positions
&
DANGER
While drilling the hole on the wall, ensure no damage on the electric wire and /or
water pipe inside the wall.
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User Manual - Installation
Step 4 Drill holes using a hammer drill and install expansion bolts, as shown in Figure 4.12.
08,Depth of the hole : 6O-65mm
Drilling a hole on wall using a hammer drill
Installing the expansion bolt
Figure 4.12 Drilling a hole and installing expansion bolts (unit: mm)
Step 5 Align the rear panel with the holes, insert expansion bolts into the holes through the real panel, and lighten the expansion
bolts to a torque of 3 N·m using a torque wrench, as shown in Figure 4.13.
C)
Spec: M6; the required torque is 3 N·m
0
Tighten the screw into the expansion bolt
Figure 4.13 Securing a rear panel
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User Manual - Installation
Step 6 Mount the inverter on the rear panel and secure it as shown in Figure 4.14.
,L
Figure 4.14 Mounting the inverter
Step 7 Lock the inverter with the rear panel and ensure that the inverter in secured by checking for resistance when a slight pull
is applied, as shown in Figure 4.15.
Figure 4.15 Securing the inverter
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User Manual - Electrical Connections
5 Electrical Connections
Before performing any electrical connections, ensure that both DC and AC Switches are
&
DANGER
&
CAUTION
OF F. Otherwise, fatal injury can occur due to the high voltage caused from AC and DC
cables.
Grounding the PV Strings needs below prerequisites:
An isolation transformer must be installed on the AC side of each inverter;
Ensure that the neutral wire of the isolation transformer must be disconnected from the PGND cable.
One isolation transformer is 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.
Select Isolation SET on the GS Touch APP, and set in Input Grounded, With T F.
5.1 Connecting Protection Ground (PGND) Cables
5.1.1 Preparation
T he ground cable and OT terminals have been prepared.
a. Ground cable: Outdoor copper-core cables with a cross sectional area of 6 mm' or more are recommended.
b. OT terminal: OT6-4.
OT 6~4
Key parameter
Product series code Terminal product
series code
D
Good grounding for the inverter helps resist the impact of surge voltage and improve the EMI
NOTE
performance. Connect the PGND cable before connecting the AC power cables, DC power
cables, and communications cables.
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User Manual - Electrical Connections
D
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.
NOTE
5.1.2 Wiring Procedures
Step 1 Remove an appropriate length of the insulation layer from the PGND cable using a wire Stripper; the length is a little bit
longer than that of OT terminal’s crimping end by 2mm~3mm, as shown in Figure 5.1.
�Specification : OT6-4
I
◄1---.i► L2=L 1 +(2mm~3mm)
141
Figure 5.1 Stripped length (unit: mm)
Step 2 Insert the exposed core wires into the crimping areas of the OT terminal and crimp them using hydraulic pliers, as
shown in Figure 5.2.
-.1 ..
L3<2mm
'----..----,1
Figure 5.2 Crimping a cable (unit: mm)
Step 3 Secure the PGND cable (done by step 1 & 2) using the ground bolts and tighten the bolts to a torque of 1.2 N·m using a
socket wrench. Ensure that the PE wire is grounding well and impedance between earth wire and neutral wire is no more than 10
0, as shown in Figure 5.3.
Figure 5.3 Securing the PGND cable
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User Manual - Electrical Connections
5.2 Connecting AC Output Cables
5.2.1 Preparation
T he AC power cable and AC terminals have been prepared with below requirements.
a. AC power cable: Outdoor multi-strand copper-core cables are recommended. Single strand cables or aluminum cable is forbidden
for inverter output terminal. Table 5.1 describes the specifications.
Cable Outer Diameter (mm)
Cross-sectional Area(mm2)
Cable type
Cable
Range
Recommended Value
Range
AC cable
multi-core
outdoor cable
4-6
4
11-18
DC cable
common PV
cables in the
industry
/model: PV1-Fl
2.5-4
4
4-5
External
PGND
cable
multi-core
outdoor cable
4-6
6
NA
Tabla 5.1 AC output cable spaciflcations (recommended)
6K
8K
10K
12K
15K
4mm2
53m
40m
30m
25m
20m
6mm2
80m
58m
47m
39m
30m
��
Table 5.2 Cable Max length at AC terminal
b. AC wiring terminals: Leak-protective switch is not recommended in this system; if there is a must, please install a model B
switch with no less than 300mA current leakage. Neutral wire sharing is forbidden for multi leak-protective switches in system, or
tripping operation will be resulted.
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User Manual - Electrical Connections
&
WARNING
An independent three-phase 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.
&
5.2.2 Procedure of 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 5.4.
u,.1ommm~12mm
H
,
>-------,, 70(recommend)
Figure 5.4 Stripped length (unit: mm)
Step 2 Crimp Euro type terminals using special crimping tool, shown in Figure 5.5.
Figure 5.5 Crimping Euro type terminals
Step 3 Insert AC output wire through waterproof terminal block to AC connector reserving appreciate wiring length
shown in Figure 5.6.
Figure 5.6 Dealing AC output cable
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User Manual - Electrical Connections
Step 4 Connect the AC output cable to L1, L2, L3, N, and Eon the AC terminal block, tighten them using screw driver and the
required torque is 1.5 N· m, shown as in Figure 5.7.
Figure 5.7 Tightening AC cable
Step 5 Aligning with the hole position on the AC terminal cover, use a torque wrench to tighten the locking cap to a torque of
1.2 N · m, as shown in Figure 5.8.
Figure 5.8 lightening AC wiring cover
Step 6 Use a torque wrench to tighten the locking cap on the AC cable to a torque of 5 N·m, as shown in Figure 5.8.
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User Manual - Electrical Connections
5.3 Connecting the PV Strings
&
DANGER
PV Strings connection needs below prerequisites; otherwise, an electrical shock can
occur.
PV modules generate electric energy when exposed to sunlight and can create an electrica shock hazard. Therefore, when
connecting the PV modules, shield them with opaque cloth.
Before connecting 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 connect or disconnect a string
or a module in a string. Only after the inverter enters in shutdown mode, it is allowable for preceding DC input power
cables maintenance.
&
WARNING
Grounding the PV Strings needs below prerequisites; otherwise, a fire can occur.
PV modules connected in series in each PV string must be of 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 short circuit.
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User Manual - Electrical Connections
5.3.1 Preparation
PV Strings DC input cable and PV Strings connectors have been prepared with below requirements:
a.Route connecting for the installation of PV strings and the inverter is shown in Table 5.3
Number of Input Route
Input Route
1
Connected to any route
2
Connected to routes 1 & 2
3
Connected to routes 1,2 & 3
Inverter model
6K/8K/10K/12K/15K
Not applicable for 6K/8K/1OK
Table 5.3 Route connecting for the installation of PV strings and the inverter
b. DC input cables of PV Strings: Table 5.4 lists the recommended outdoor copper-core DC input cable specifications.
Cross-sectional Area(mm')
Cable Type
Inverter model
Range
Common PV cables in the
industry (model: PV1-F}
6K/8K/1OK
12K/15K
2.5-4
Cable Outer Diameter (mm
Recommended Value
Range
4
4-5
Table 5.4 Recommended DC input cable recommended specifications
c. Connectors of PV Strings: Positive and negative DC input connectors are used, as shown in Figure 5.9 and Figure 5.10.
1
2
2
1
the insulation layer
locking nut
the insulation layer
Figure 5.9 Positive connector compositions
D
Figure 5.10 Negative connector compositions
Positive and negative metal connectors are packed with positive and negative connectors
NOTE
respectively when shipped out. After unpacking, keep the positive and negative ones separate
to avoid confusion.
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2
locking nut
User Manual - Electrical Connections
Procedures of 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 below Figure.
Positive metal connector
Negative metal connector
Figure 5.11 Removing insulation layer for DC cable (unit: mm)
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 in Figure 5.12.
�
Figure 5.12 Crimping a metal connector
Step 3 Insert the crimped positive and negative power cables into the corresponding positive and negative connectors until a
"click" sound is heard, as shown in Figure 5.13.
�
� ◄------------��◄------------Figure 5.13 Connecting positive and negative connectors
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Step 4 Tighten the locking nuts on the positive and negative connectors using a removal wrench, as shown in Figure
5.14.
J,
Figure 5.14 Locking connectors
Step 5 Measure the voltage of every route Strings using a multimeter. Ensure that the polarities of the DC input power cables
are correct, as shown in Figure 5.15.
Figure 5.15 Checking the voltage of every route Strings
Step 6 Insert the positive and negative connectors into their corresponding terminals of the inverter until a "click" sound
is heard, as shown in Figure 5.16.
Figure 5.16 Connecting to the inverter
Step 7 After connecting the PV strings, ensure that all connectors are in position by checking for resistance when a slight pull
is applied.
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5.4 Connecting Communication Cables
5.4.1 Communication Mode Description
You can use the following communication modes to implement communication:
Bluetooth, WIFI, GPRS and RS485 all of which are described as follows.
Bluetooth Module
You can turn on the Bluetooth function of the mobile phone, and set parameters and monitor data of the inverter through the mobile
APP. For details about operation, refer to APP User Manual.
WIFI & GPRS & RS485 Modules
Following figure show inverter’s interface to connect WIFI, GPRS and RS485 accessory, please refer user manual of accessory for
connecting method and its setting.
Module
Function description
WIFI
WIFI module implements communication with Cloud server through wireless network to
monitor PV inverter's data status. For more details, refer to WIFI Product Application Manual.
GPRS
GPRS module communicates with Cloud server through a mobile phone to monitor PV
inverter`s data status. For more details, refer to GPRS Product Application Manual.
RS485
RS485 switching module monitors PV inverter's data status through collecting and uploading data
to Cloud server. For more details, refer to RS485 switching Product Application Manual.
NOTE
You can choose and buy WIFI/GPRS/RS485 communication modules from the
company. The baud rate supported by RS485: 9600BPS
Table 5.4 WIFI & GPRS & RS485 Modules Description
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User Manual - Electrical Connections
RS485 communications mode (for single inverter)
You can connect RS485 communications module to inverter for monitoring in two ways: connecting to single inverter
and to multiple inverters. Figure 5.17 demonstrates connection to single inverter to implement RS485 communications.
,�-1'
: [gJ :
L_l
Inverter
RS485 OUT
RS485IN
.......... □J-����---c_o_o_J
Data Logger
Router/Modem
Cloud Sever
Terminal Device
Figure 5.17 RS485 communications mode for a single inverter
RS485 communications mode (for multiple inverters)
Inverter
Data Logger
Router/Modem
Cloud Sever
----RS485IN
----RS485 OUT
Terminal Device
Figure 5.18 RS485 communications for multiple inverters
If multiple inverters are connected, note the following:
D
NOT E
1) No need for re-setting Modbus address and the address can be allocated automatically if
V1000 data logger (manufactured by Group Solar is used. Otherwise, you need to re-set
Modbus address manually through GS Touch APP if other brand data logger is used. For
details, refer to GS Touch Product Manual.
2) Turn RS485 Resistance to ON from the dial switch of the inverters on the end of the chain.
3) Ensure that the appropriate length of communications cable between every two inverters is
less than 200m and communications cable must be separated from other power cables to
avoid communications interference.
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5.4.2 Connecting RS485 Communications Cables
Step 1 Remove an appropriate length of the insulation layer from the cable using a wire stripper,
as shown in Figure 5.19.
Figure 5.19 Stripping an RS485 communications cable (unit: mm)
Step 2 Remove the RS485 screws at the inverter bottom to remove the metal plate.
Step 3 Take RS485 cable out of accessory kit, and remove the locking caps from the 485 IN and 485 OUT waterproof
cable connectors. Route RS485 cables through waterproof cable connectors and reserve appreciate wire length for wiring
to the inverter.
Step 4 Connect RS485 differential positive and negative signal of data logger to terminal 1A and 1 B of inverter, and connect
terminal 2A and 2B of the inverter to terminal 1A and 1 B of another inverter. Figure 5.20.
Figure 5.20 RS485 Terminal block connection
Step 5 Connect RS485 male terminal with its female terminal, Tighten the locking caps to a torque of 8 N·m as well as
waterproof cable connectors.
D
NOTE
To prevent corrosion, apply silica gel or fireproof mud to the terminal or interface after
connecting external PGND cables, AC cables, RS485 port, and Ethernet port.
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User Manual - Electrical Connections
5.4.3 Setting RS485 Communications Address
Step 1 Input http://www.groupgshk.com in your mobile phone browser and click APP to download GS Touch, which is also
available by scanning below QR code. And then login GS Touch and register an account for your inverter.
Figure 5.21 QR Code for downloading GS Touch APP
Step 2 Click the Extension key, and select Setting in the prompt manual, as shown in Figure 5.22.
FF+iiiii "'"�
Standby Mode
Genetalingcapacity
Maintenance
1 Set"""
,
\
_____,._��
0
2
•
6
I 10 l"2 \4 16 IS 20 22
Figure 5.22 APP homepage setting
Step 3 Check the Modbus address in Figure 5.23, the default address is 1, long click to revise the address and save it, the inverter
at same RS485 bus must be set a unique address.
�
Settmg
Basic Setting
Date and 1Ime
IP address
Figure 5.23 Check the Modbus address
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User Manual - Electrical Connections
Step 4 You can set Mach Resistance of the end of multi-RS485 connection chain, as showed in Figure 5.24.
�
Setting
Leakage Current Detection
I Match Resistance
..
Standard Code
Figure 5.24 Setting Mach Resistances
5.5 Installation Verification
Check the following items after the inverter is installed according to Table 5.6.
1. No other objects put on the PV inverter.
2. All screws, especially the screws used for electrical connections, are tightened
3. The PV inverter is installed correctly and securely.
4. Ground, AC, DC, and Communications cables are connected tightly/correctly and securely
5. Check there is no open circuit or short-circuits at AC and DC terminals using multimeter.
6. Waterproof connectors at AC terminals and RS485 ports are plugged with waterproof plugs tightly.
7. Covers at AC terminals are tightened.
8. Idle terminals are sealed.
9. All safety warning symbols are intact and complete on the inverter.
Table 5.6 Self-check items after installation
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User Manual - System Operation
6 System Operation
6.1 Powering ON the Inverter
Step 1: Switch ON the AC circuit breaker.
Step 2: Set the DC SWITCH of the inverter to ON.
Step 3: Observe statuses of LED indicator lights on the inverter according to Table 7.2.
D
NOTE
When LED status lights display the inverter has entered
grid-connecting, it means the inverter is operating well. A ny query during operating the
PV inverter, call your dealer.
6.2 Powering OFF the Inverter
Step 1: Switch off the circuit breaker at AC terminal.
Step 2: Set the DC SWITCH to OFF.
&
WARNING
After the inverter powers off, the remaining electricity and heat may still cause electrical
shock and body burns. Please only begin servicing the inverter ten minutes after the poweroff.
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User Manual - User Interface
7 User Interface
Display screen of inverter is composed of LED indicator and LCD (LCD is optional for some models of inverter). LED indicator
includes PV Indicator, Grid Indicator, COM Indicator, and Warning Indicator.
1. PV indicator
2. Grid indicator
�
� Co'v &
3. COM indicator
6rn3
4. Warning indicator
? ? ? ?
G)
LED indicator
PV Indicator
Warning
Indicator
5. LCD (optional)
©
Description
Voltage of PV strings meets the requirements for inverter
grid-connecting to generate power.
blink
Voltage of PV strings can't meet the requirements for inverter grid-connecting to generate
power.
blink
Power grid abnormal, and can't meet the requirements for inverter grid-connecting to
generate power.
on
blink
COM
Indicator
®
Status
on
Grid
Indicator
Q)
off
on/blink
off
When grid-on, the blink (every cycle last 30s) of Grid Indicator means loading amounts:
quantity of blink means power size, and after that the Indicator keeps ON.
When less than 20% rated power, blink one time;
20%-40% rated power, blink twice every 30s;
40%-60% rated power, blink three times every 30s;
60%-80% rated power, blink four times every 30s;
80%-100% rated power, blink five times every 30s.
Communications data transmission is underway.
No external communications is connected or no communications data transmission.
Refer LED status in warning table
No warning
Table 7.1 LED indicator
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User Manual - User Interface
LCD Screen
COM
.......
Warning
I
Date
&88
2an as 22 23:as
r,m»>»I§ >>>>> 11
,!'!!1!,�'2:e.o11I
rqj?'T
am!D&l!l!l:Jl:it
Meter-
a,nnn
0000
kWh
MWh
VAS
nnnn
0000
•c
j
Hz
kW
VA
- Status
- Output
1) COM
When WIFI/GPRS/Bluetooth is transferring data, icon :\'\ will be ON, while no data transmission, the icon will be off after 1 Os.
When RS485 is transferring data, icon
a
will be ON, while no data transmission, the icon will be off after 1Os.
2) Warning
When warning is triggered, icon A 88 will be illuminated: from left to right the first bit could be R (A)/ b (B)/ C (C), it
stands for warning type, and the second bit is warning code, please refer to warning code in table 7.2 for details.
3) Date
When external communications is normal and time zone is set correctly, the built-in clock of inverter will be synchronized with
server's time.
4) Status
Icon@ stands for PV strings; when inverter is standby status, MPPT voltage of the PV string will be displayed in Meter zone.
Icon
1 stands for grid; when voltage and frequency of power grid is in normal range, the icon keeps on, or else, it blinks;
when there is no voltage, the icon will be off.
Icon
>»»
stands for energy flow; when inverter is in normal status, the icon will be on, or else it will be off.
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5) Meter
Normal status: today and total energy, MPPT voltage and
,mm,
#!l!lD
9.gss- :'3BB- 988.
current are showed in turn.
BB,
Standby status: counter down value before inverter start up.
:sss
Any status: setting parameters via APP, the screen keep for 5
seconds.
,n .
,u
"
6) Output
998B · 38 □ ,
Normal status: output power, grid voltage
and current are showed in turn
,n
,u .
View Inverter status
T he inverter operation status can be obtained from observing LED indicator status. For more details, refer to Table 7.1 LED
indicator status.
and Set
Set Inverter
Inverterrunning
runningdata
data )
( View
View and
T he inverter operation data can be obtained from GS Touch, mobile phone APP downloaded through Bluetooth
communications. For more details, refer to GS Touch Manual.
D
You can view&set data through the inverter APP, GS Touch. For details about operation,
NOT E
refer to GS Touch User Manual. GS Touch User Manual is available for free from
http://www.groupgshk.com.
Warning
code
Normal status
Starting up
WLAN/WI-FI/RS485 communication
•
•
•
©
PV normal
Grid over voltage
AO
Grid under voltage
A1
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PV
indicator
©
.,.
Grid
indicator
0
COM
indicator
Warning
indicator
©
0
©
0
©
*
©
©
0
*
©
0
0
User Manual - User Interface
Grid absent
A2
Grid over frequency Grid
A3
under frequency Grid
A4
unbalance
A6
PV over voltage
BO
PV under voltage
B4
0
*
0
0
*
0
0
0
0
0
*
•
0
Weak radiation
BS
Strings abnormal
B3
Inverter over temperature
C5
0
Fan abnormal
c8
Insulation resistance abnormal
B1
Leakage current abnormal
B2
•
0
Strings reverse
B7
0
0
0
•
•
•
0
*
Control power abnormal
co
DC bias current abnormal
C2
*
Inverter relay abnormal
C3
0
Leakage current HCT abnormal
C6
System fault
C7
DC link voltage unbalance
C9
DC link over voltage
CA
0
*
Internal Communications Fault
CB
0
0
Software version incompatibility
cc
EEPROM fault
CD
Sampling inconsistency
CE
Invert circuit abnormal
CF
Boost circuit abnormal
CG
•
*
•
*
*
*
•
*
*
0
•
•
•
0
0
Table 7.2 LED indicator status for common fault of the inverter
Note:
means light ON,
light
*blink
40
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keep original status.
•
0
0
*
•
0
*
•
*
*
•
•
•
0
0
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
User Manual - Maintenance
8 Maintenance
.&
Before maintaining and commissioning 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.
WARNING
8.1 Routine Maintenance
Check Item
Maintain
content
Check Content
inverter output
Statistically maintain the status of electrical yield,
status
and remotely monitor its abnormal status.
NA
PV inverter
cleaning
Check periodically that the heat sink is free from
Clean periodically
dust and blockage.
the heat sink
PV inverter
running
status
PV inverter
Electrical
Connections
Check that the inverter is not damaged or deformed.
Check for normal sound emitted during inverter
operation.
Check and ensure that all inverter communications
is running well.
Check that AC, DC, and communication cables are
phenomenon,
replace the
If there is any
abnormal
Check that PGND cables are securely connected;
phenomenon,
Check that cables are intact and there are not wire
replace the cable
or re-connect it.
Table 8.1 Maintenance checklist and interval
41
Weekly
yearly
monthly
relevant parts.
securely connected;
aging;
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If there is any
abnormal
Maintenance
Interval
Semiannually
User Manual - Maintenance
8.2 Inverter warning and exception handling
When the inverter has an exception, its basic common warning and exception handling methods are shown in the table 8.2.
Alarm Name
Causes
Grid
Over Voltage
Grid
Under Voltage
Over
Frequency
T he grid voltage
exceeds its
allowable range.
Voltage
breaker I AC terminals is disconnected or not, or if the grid has a power
PV modules input
voltage exceeds the
inverter's allowable
range.
PV modules input
PV Under
Voltage
1. If the alarm occurs accidentally, possibly the
power grid is abnormal accidentally. No extra
action is needed.
2. If the alarm occurs repeatedly, contact the local power station. After
receiving approval of the local power bureau, revise the electrical
protection parameters setting on the inverter through GS Touch APP.
3. If the alarm persists for a long time, check whether the AC circuit
outage.
Under
Frequency
PV Over
Measures Recommended
voltage is under the
inverter's defaulted
protection value.
Check the number of PV modules and adjust it if need.
1. When sunlight intensity weakens, PV modules voltage decreases.
No action is needed.
2. If such phenomena occur when sunlight intensity does not
weaken, check if there is short circuit, open circuit etc. in the PV
strings.
A short circuit exists
between PV strings
1. Check the insulation resistance against the ground for the PV
Insulation
Resistance
and protection
strings. If a short circuit has occurred, rectify the fault
ground. PV strings are
2. If the insulation resistance against the ground is less than the
Abnormal
installed in a long-
default value in a rainy environment, set Insulation resistance
term moist
protection on GS Touch.
environment.
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User Manual - Maintenance
The insulation
resistance against
Residual
Current
Abnormal
the ground at the input
side causes decreases
during the inverter
operation, which
excessively high
1. If the alarm occurs accidentally, possibly the external circuits
are abnormal accidentally. The inverter automatically recovers
to the normal operating status after the fault is rectified.
2. If the alarm occurs repeatedly or lasts a long time, check
whether the insulation resistance against the ground of PC
strings is too low.
residual current.
PV Strings
Abnormal
PV strings have
been shielded for a
long time. PV strings are
deteriorating.
PV Strings
Reverse
BUS Under
Voltage
BUS Over Voltage
Invert Module
Fault
BOOST Fault
The cables of PV strings
are connected reversely
during the inverter
installation.
Abnormal internal
energy control
imbalance has been
triggered by the PV
Strings/grid sharp
change of woriking
conditions
1. Check whether the PV string is shielded.
2. If the PV string is clean and not shielded, check whether the
PV modules are aging or deteriorated.
Check whether the cables of PV strings are correctly connected. If they
are connected reversely, reconnect the cables.
1. If the alarm occurs occasionally, the inverter can automatically
recover to the normal operating status after the fault is rectified.
2. If the alarm occurs repeatedly, contact your dealer for technical
support.
EEPROM
EEPROM Fault
Zero power
generation and
Yellow alarm light
illuminating in
remote monitor
system
Component
damaged
Replace the monitoring board.
Communications Outage
If modem or other data logger is used, please reboot it; if still does not
work after rebooting, contact your dealer.
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User Manual - Maintenance
remote monitor
displays zero
power generation
remote monitor displays
no output voltage
Inverter off grid
Communications
If modem or other data logger is used, please reboot it; if still does not
outage
work after rebooting, contact your dealer.
Output switch
Check if DC switch is damaged, and if not, switch it to ON. If it still
doesn't work, contact your dealer.
tripping
1.Power grid fault;
2. DC switch
tripping
1. Wait till power is restored;
2. Turn DC switch to ON, and if DC switch trips a lot, contact your dealer.
Table 8.2 Common troubleshooting measures
D
NOTE
If you cannot clear the preceding alarm according the measures recommended, contact
your dealer timely.
8.3 Removing the Inverter
Perform the following procedures to remove the inverter:
Step 1: Disconnect all cables from the inverter, including communications cables, DC input power cables, AC output power
cables, and PGND cables, as shown in Figure 8.1.
Figure 8.1 Removing DC input connector
Notes:
When removing DC input connector, insert the removal wrench to the bayonet, press the wrench down, and take out
the connector carefully.
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User Manual - Maintenance
Step 2: Remove the inverter from the rear panel.
Step 3: Remove the rear panel.
&.
WARNING
Before removing DC input connector, double check DC input switch is turned to OFF to
avoid inverter damage and personal injury.
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User Manual - Quality Guarantee
9 Quality Guarantee
9.1 Quality Terms
1) Where otherwise agreed to in a contract, quality warranty period of the inverter is 60 months
2) As for the PV inverter which is defective or damaged within its quality warranty period, Group Solar shall repair or replace it for
free.
3) The defective I damaged PV inverter replaced must be returned.
9.2 Liability Waiver
Warranty or liability will be void if damage is caused from below operations / situations. If customer asks for maintenance
service, Group Solar can, at its discretions, provide paid service.
1) The warranty period expired;
2) The damage caused during transit;
3) The damage caused by man;
4) The damage caused by force majeure including, but not restricted to the following: earthquake, flood, fire,
explosion, debris flow etc.
5) Operation in adverse environments beyond that described in the User Manual;
6) Any installation and operation environment beyond the relevant national standards;
7) Any installing, reconfiguring, or using faulty;
8) Any revising the product or modifying its software code without authorization;
9) Maintenance faulty caused by the technician personnel unauthorized by Group Solar;
1 O) Any operation ignoring the safety precautions stipulated in the User Manual.
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User Manual - Disposal of the Inverter
10 Disposal of the Inverter
The PV inverter and its packing case are made from environment-friendly materials. If the inverter service life has expired,
do NOT discard it with household garbage; dispose the inverter in accordance with local environmental laws and
regulations.
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User Manual - Technical Specifications
11 Technical Specifications
Inverter Model
6K
SK
10K
12K
15K
Max. efficiency
98.00%
98.20%
98.30%
98.40%
98.40%
European efficiency
97.50%
97.60%
97.60%
98.00%
98.00%
MPPT dynamic efficiency
99.50%
99.50%
99.50%
99.50%
99.50%
7,200W
9,600W
12,000W
14.400W
18,000W
Efficiency
Input
Max. input power
1000V
Max. input voltage
22A (1*11A+1*11A)
Max. input current
Starting voltage
MPPT operation voltage range
Full load MPPT voltage range
33A (1*11A+2*11A)
180V
160V-850V
300V-800V
380V-800V
470V-800V
380V-800V
2(1/1)
Max. number of inputs
26A (1*13A+1*13A)
Maximum short-circuit current
470V-800V
2(1/2)
39A (1*13A+2*13A)
Maximum reverse current
0A
Overvoltage protection level
II
Output
Rated output power
6,000W
8,000W
10,000W
12,000W
15,000W
Max. apparent power
6,600VA
8,800VA
11,000VA
13,200VA
16,500VA
Max. active power (PF=1)
6,600W
8,800W
11,000W
13,200W
16,500W
Max. output current
3*10A
3*13A
3*16A
3*19A
3*23A
3*27A
3*32A
3*10A
Current (In rush)
Max output current under fault conditions*
3*18A
3*14A
Rated grid voltage
277V-510V
Power grid voltage range
Rated frequency
50/60Hz
THDi
<5%
DC off-sets
<50mA
Power factor range
0.8Iead-0.8Iag
Overvoltage protection level
Ill
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3*23A
380V/400V/415V
User Manual - Technical Specifications
Common specs
Topology
Transformerless
Protective class
I
Protection level
IP65
Pollution degree
PD3
-25 degree-60 degree
Operating temperature range
Relative humidity
0 - 100%
Warranty period
5 years
Cooling
Natural convection
Max. operating altitude
4000m(>2000 derate)
<25dB
Noise
Dimensions (W x H x D)
385mm*490mm*185mm
Weight
18.4Kg
Protection
I
20.9Kg
Supported: Input DC switch, Anti-islanding protection, low voltage ride-through, Output over current Protection, Output shirt circuit protection, Input
reverse-connection protection, PV string fault detection, DC surge protection, AC surge protection, Insulation resistance detection, RCD detection.
Standards Compliance
Grid-tied
NB/T 32004
Safety certification
IEC 62109-1 IEC 62109-2 NB/T 32004
To avoid potential risk, you are recommended to add following devices: a 15A/1
00VDC PV FUSE on the input terminal of every PV String, and an overcurrent protection device
Note
with specifications more than 20A/400VAC for 61</BK/1OK, and 32A/400VAC for 12K/15K on
the output terminal.
Notes:
1) Grid power voltage range can be set according to national voltage standards;
2) Power grid frequency range can be set according to national grid standards
3) The preceding technical specifications are subject to change without prior notice. The listed specifications are for your
reference only.
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