Ningbo Ginlong Technologies Solis-2.5K-2G User manual

Ningbo Ginlong Technologies Co., Ltd.
No. 57 Jintong Road, Binhai Industrial Park,
Xiangshan, Ningbo, Zhejiang, 315712, P.R.China
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.ginlong.com
Please record the serial number of your inverter and quote this when you contact us.
Solar PV Grid Tie Inverter
Installation and Operation Manual
Ver 1.0
2013, Ningbo Ginlong Technologies Co., Ltd.
C
inver ter
-2.5K-2G

1. Introduction
2. Safety Instructions
2.1 Safety Symbols
2.2 General Safety Instructions
2.3 Intended Use
3. Overview
3.1 Front Panel Display
3.2 LED Status Indicator Lights
3.3 Keypad
3.4 LCD
4. Installation
4.1 Selecting a Location for the Inverter
4.2 Mounting the Inverter
4.3 Electrical Connections
4.4 System Installation Requirement
4.5 Grounding
5. Setup and Stop
5.1 Starting the Inverter
5.2 Stopping the Inverter
6. Operation
6.1 Main Menu
6.2 Information
6.3 Settings
6.3.1 Setting Time
6.3.2 Setting Address
6.3.3 Clearing Energy
6.3.4 Restoring Settings
6.4 Advanced Info.
6.4.1 Alarm Message
Contents Contents
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6.4.2 STD No.
6.4.3 Version
6.4.4 Communication Data
6.5 Advanced Settings
6.5.1 Selecting Standard
6.5.2 Grid ON/OFF
7. Maintenance
8. Trouble Shooting
9. Specifications
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6.5.3 New Password

1. Introduction
Solis-2.5K-2G is a transformerless solar grid tie inverter. It has excellent
MPPT performance to effeciently obtain power from solar panels.
The maximum input current of Solis-2.5K-2G is 10A DC and maximum
output power is 2800W.
2. Safety Instructions
2.1 Safety Symbols
WARNING:
WARNING symbol indicates important safety instructions, which if not
correctly followed, could result in serious injury or death.
NOTE:
NOTE symbol indicates important safety instructions, which if not correctly
followed, could result in damage to or destruction of the inverter.
CAUTION:
CAUTION, RISK OF ELECTRIC SHOCK symbol indicates important safety
instructions, which if not correctly followed, could result in electric shock
causing serious injury or death.
CAUTION:
CAUTION, HOT SURFACE symbol indicates safety instructions, which if not
correctly followed, could result in burns.
!
.3. .4.
Solis-2.5K-2G is designed and manufactured to ensure your personal
safety. Improper use may result in potential electric shock hazards
or burns. This manual contains important instructions that should
be followed during installation and maintenance of Solis-2.5K-2G.
Please read these instructions carefully before use and keep them
for future reference.
Safety symbols used in this manual, which highlight potential safety risks
and important safety information, are listed as follows:
Figure 1.1 Solis-2.5K-2G vertical view
Figure 1.1 Solis-2.5K-2G side view

2.Safety Instructions2.Safety Instructions
2.2 General Safety Instructions
!WARNING:
Solis-2.5K-2G is a transformerless inverter. Hence before its operation, it is very
important to ensure that the DC input source and the AC output source are
electrically isolated. Failure to do so will cause serious damage to the inverter.
( CAUTION: AC and DC voltage sources are terminated inside the inverter.
The AC circuit and the DC circuit must be isolated from each other before
servicing. Each circuit must be individually disconnected before servicing.)
!WARNING:
All electrical installations must be done in accordance with the local and
National Electrical Code AS/NZS3000.
!WARNING:
To reduce the risk of fire, branch circuit overcurrent protective devices are
required for circuits connected to Solis-2.5K-2G. The rating of overcurrent
device should not exceed 15 amperes.
CAUTION:
Risk of electric shock. Do not remove cover. There are no user serviceable
parts inside. Refer servicing to qualified and accredited service technician.
CAUTION:
The PV array (Solar panels) supplies a DC voltage when it is exposed to light.
CAUTION:
Risk of electric shock from energy stored in capacitors of Solis-2.5K-2G. Do not
remove cover until 5 minutes after disconnecting all sources of supply. Service
technician only. Warranty may be void if unauthorized removal of cover.
CAUTION:
Solis-2.5K-2G has a heat sink on its top surface, which helps in cooling down the
internal components. The heat sink can reach temperatures up to 70℃ (158 F).
To avoid risk of burns, do not touch the heat sink when the inverter is
operating. To install an inverter on a wooden, painted, or any other combustible
surface, a cement sheet is required to be used as a fire retardant material
between the wall and the inverter mounting.
Inverter must be installed OUT OF REACH OF CHILDREN.
2.3 Intended Use
The inverter has been constructed according to the applicable safety and technical
guidelines. Use the inverter in installations that meet the following sepcifications
ONLY:
1.Permanent installation is required.
2.The inverter must be connected to a separate, grounded AC group, to which no other
electrical equipment is connected.
3.The electrical installation must meet all the applicable regulations and standards.
4.The inverter must be installed according to the instructions stated in this manual.
5.The inverter must be installed according to the correct technical specifications.
.5. .6.
7.The DC input voltage into the Solis-2.5K-2G must NOT exceed 600Vdc.
6.To startup the inverter, the Grid Supply Main Switch (AC) must be switched on before
the solar panel DC isolator is switched on. To stop the inverter, the Grid Supply Main
Switch (AC) must be switched off before solar panel DC isolator is switched off.

3. Overview
3.3 Keypad3.1 Front Panel Display
Figure 3.1 Front Panel Display
3.2 LED Status Indicator Lights
There are three LED status indicator lights in the front panel of Solis-2.5K-2G. The left
POWER light (red) indicates power status of the inverter. The middle OPERATION
light (green) indicates the operation status. The right ALARM light (yellow) indicates
the alarm status. Table 3.1 explains their meanings.
Description
The inverter is detecting solar power signal.
The inverter has lost a solar power signal.
The inverter is operating properly.
The inverter has stopped supplying power.
The inverter is initializing.
Alarm or fault condition is detected. The inverter
stores the last 10 messages.
The inverter is operating properly.
Status
ON
OFF
ON
OFF
OFF
ON
FLASHING
Light
POWER
OPERATION
ALARM
3.4 LCD
There are four keys in the front panel of the Solis-2.5K-2G(from left to right): ESC, UP, DOWN
and ENTER keys. The keypad is used for:
Scrolling through the displayed options (the UP and DOWN keys);
Access to modify the adjustable settings (the ESC and ENTER keys).
3. Overview
The two-line Liquid Crystal Display (LCD) is located at the front panel of Solis-2.5K-2G,
which shows the following information:
Inverter operation status and data;
Service messages for operator;
Alarm messages and fault indications.
Table 3.1 Status Indicator Lights
.7. .8.

4. Installation
4.1 Selecting a Location for the Inverter
4. Installation
To select a location for the inverter, the following criteria should be considered:
The temperature of the inverter heat sink up to 70℃. Hence the inverter must
be installed at a place where nobody will touch its top.
The inverter is designed to work in extreme temperatures. The ambient operating
temperature range is from -25℃ to 60℃.
A minimum 500mm clearance between the bottom of the inverter and the ground are
recommended.
Visibility of the LED status indicator lights and the LCD located at the front panel of
the inverter should be considered.
Adequate ventilation must be provided if the inverter is to be installed in a confined space.
4.2 Mounting the Inverter
Please use suitable fixings for wall type (e.g. use dynabolts for brick masonry).
Inverter should be mounted in a vertical position as shown in Figure 4.1. The steps to
mount the inverter to the wall are given as follows:
WARNING:
!
.9. .10.
NOTE:
Nothing should be stored on or placed against the inverter.
NOTE:
Heat sink must be Out of Reach of Children.
3. Carefully hang the inverter on the upper part of the bracket so that the hooks
located at the rear of the inverter hang over the bracket. Use M4×25 stainless
steel screws to secure points E and F (in Fig 4.2) to the bracket .
Bracket must be mounted horizontally on a vertical wall surface.
1. Locate the wall studs in the desired location and align the wall mount bracket over
the studs. Mark the mounting holes. For masonry walls, the mounting holes should be
as for a suitable dynabolt type mounting system.
2. MAKE SURE BRACKET IS LEVEL. Ensure mounting holes A, B, C and D (in Figure
4.2) are aligned with most secure points on wall (e.g. wall studs if clad building
materials).
Figure 4.1 Inverter Mounting
Bracket
M4×25 stainless steel screw
Inverter
5.5×38 stainless steel screw
Figure 4.2 Wall Mount Bracket
AB
CD
Inverter
E(F)

4.3 Electrical Connections
Solis-2.5K-2G can transfer the power available to the utility at any input DC voltage that is
within the range from 100Vdc to 500Vdc. The maximum input current is 10Adc. The rated
output voltage of Solis-2.5K-2G is 230Vac or 240Vac.
The electrical connection of the inverter must follow the steps listed below:
1. Switch the Solar Supply Main Switch (AC) OFF.
2. Switch the solar panel DC Isolator OFF.
3. Connect Solis-2.5K-2G to the solar panel DC Isolator.
a) Make sure the polarity of the output voltage from the solar panel (i.e. the input voltage
for Solis-2.5K-2G) matches the “DC+”and“DC-”symbols.
b) Attach the positive DC connector (refer to Figure 4.3) to the solar panel output positive
terminal. Attach the negative DC connector (refer to Figure 4.4) to the solar panel
output negative terminal.
Figure 4.3 DC+ Connector Figure 4.4 DC- Connector
The steps to assemble the DC connectors are listed as follows:
i) Disassemble the connector coat (see Figure 4.5).
ii) Insert the wire into the bottom part of the connector coat as shown in Figure 4.6.
Figure 4.5 Disassemble the Connector Cap
Figure 4.6 Insert the Wire into the Connector Cap
ii) Attach the pin top to the wire as shown in Figure 4.7.i
Figure 4.7 Attach the Pin Top to the wire
iv
on the bottom part of the connector (as shown in Figure 4.8).
) Insert the pin to the top part of the connector and screw the top part back
Figure 4.8 Connector with Cap Screwed on
.11. .12.
4. Installation 4. Installation
Solis-2.5K-2G is designed for electrical connection without removing the cover. The
meaning of the symbols located at the bottom of the inverter are listed in Table 4.1.
All electrical installations must be in accordance with all local and national electrical
codes.
Table 4.1 Terminals
+
-
Positive terminals of DC input
Negative terminals of DC input
DC 1
DC 1 input terminals positive or negative
DC 2
DC 2 input terminals positive or negative
DC SWITCH Switch of DC input terminals(optional)
COM Equipment communication connect terminal
Rs485 communication connect terminal(optional)
RS 485
GRID Equipment grid wires connect terminal

v) Then connect the DC connectors to Solis-2.5K-2G (as shown in Figure 4.9).
Figure 4.9 Connect the DC Connectors to the Inverter
4. Connect Solis-2.5K-2G to the AC grid switch.
Each Solis-2.5K-2G is supplied with an AC grid terminal connector, which is shown in Figure 4.10.
!WARNING:
Figure 4.10 AC Grid Terminal Connector
Figure 4.11 AC Grid Terminal Connector Inside
The steps to assemble the AC grid terminal connectors are listed as follows:
a) Attach the wires to the grid terminal using screws on the connector (as shown in
Figure 4.12).
b) Put the terminal cap on the terminal (as shown in Figure 4.13).
Figure 4.12 Connect Wires to the Grid Terminal
Figure 4.13 Put the Cap on the Terminal
c) Connect the AC grid terminal connector to Solis-2.5K-2G (as shown in Figure 4.14).
Figure 4.14 Connect the Terminal Connector to Solis-2.5K-2G
5. Connect Solis-2.5K-2G to your PC via communication terminal (optional).
Please refer to the software application manual.
.13. .14.
4. Installation 4. Installation
There are symbols marked inside the connector ( see Figure
4.11), the Line wire of grid must be connected to“L”terminal; the Neutral wire
of grid must be connected to“N”terminal; the Earth of grid must be connected
to“ ”(see Figure 4.12).

5. Setup and Stop
4.4 System Installation Requirement
Figure 4.15 is a simple guidance for installing a solar system with PV inverter. A DC isolator
is required to be installed in the system between the PV panels and the inverter.
Figure 4.15 Guidance for a Simple Installation of an Inverter Solar Energy System
4.5 Grounding
Solis-2.5K-2G must be earthed securely. Inside the inverter, the earth wire is in yellow and green.
When the inverter is connected to the grid through the AC grid terminal connector, the earth
wire will be connected to the Earth and hence ensure safety.
5.1 Starting the Inverter
To start up Solis-2.5K-2G, it is important that the following steps are strictly adhered to:
1. Switch the Solar Supply Main Switch (AC) ON first.
2. Switch the solar panel DC Isolator ON. If the solar panels provide normal power
supply, Solis-2.5K-2G will turn on ( the red light displays and the LCD show the model name of
the inverter ).
Solis-2.5K-2G
Figure 5.1 Company Name and Model Name on LCD
3. When both the DC side and AC grid side of Solis-2.5K-2G have power presented, the inverter
will prepare to generate. Initially, Solis-2.5K-2G will check both its internal parameters and
the parameters of the AC grid to ensure that they are within the acceptable limits. At
this time, the green light will flash and the LCD displays the information of INITIALIZING.
4. After 3 mins, Solis-2.5K-2G will generate electricity normally. The green light will remain
on and the LCD displays GENERATING.
WARNING:
Do not touch the heat sink when the inverter is operating. Some parts may be
hot and cause burns.
!
5.2 Stopping the Inverter
To stop Solis-2.5K-2G, the following steps must be strictly followed:
1. Switch the Solar Supply Main Switch (AC) OFF.
2. Wait 30 seconds. Switch the solar panel DC Isolator OFF. All the LEDs of the inverter will
be off in a minute.
Isolation switch
Solar supply
main switch
Consumers
mains
(to grid)
Main
switch
MAIN SWITCHBOARD
Circuits not
protected by
RCDs
Circuits Protected
by RCDs
Isolation device
Inverter with
integral grid
Protection device
Solar
(PV)
array
11
2
NOTE:
1. The RCD should not be placed between the consumers mains and the solar
supply.
2. More than one RCD may be used. Each RCD can protect one or more
circuits.
.15. .16.
4. Installation

6. Operation 6. Operation
6.1 Main Menu
During regular operation, the display shows the power and the operation status alternately
with each screen lasting for 10 seconds (see Figure 6.1). Screens can also be scrolled
manually by pressing the UP and DOWN keys. Pressing the ENTER key gives access to
the Main Menu.
Pressing the ESC key returns to the Main Menu. Pressing the ENTER key can lock (Figure
6.2(b)) or unlock (Figure 6.2 (a)) the screen.
Figure 6.1 Operation Overview
5 sec
Solis-2.5K-2G
Start
Power 1924W
01-01-2010 09:04
Status: Generating
01-01-2010 09:04
Information
Settings
Advanced Info.
Advanced settings
UP/DOWN
UP/DOWN
UP/DOWN
UP/DOWN or
auto-scroll
(10 sec)
Pressing the
ENTER key
gives access to
the main menu.
Pressing the
ESC key
calls back the
previous menu.
Main Menu
There are four submenus in the Main Menu (see Figure 6.1):
1. Information
2. Settings
3. Advanced Info
4. Advanced Settings
6.2 Information
The Solis-2.5K-2G main menu provides access to operational data and information. The
information is displayed by selecting "Information" from the menu and then by scrolling
up or down.
V_DC 350.8
I_DC 5.1A
V_Grid 230.4V
I_Grid 8.1A
Status: generating
Power: 1488W
Grid Frequency
F_Grid 50.06Hz
Total Energy
0258458 kwh
This Month: 0123kwh
Last Month: 0123kwh
This day: 02kwh
Last day: 01kwh
10 sec
10 sec
10 sec
10 sec
10 sec
10 sec
10 sec
V_DC: shows input voltage value.
I_DC: shows input current value.
V_Grid: shows grid voltage value.
I_Grid: shows grid current value.
Status: shows instant status of Solis-2.5K-2G.
Power: shows instant output power value.
F_Grid: shows instant frequency of grid value.
Total energy output value (since the last time
energy was cleared).
This Month: Total energy output during this month.
Last Month: Total energy output of last month.
This Day: Total energy output during this Day.
Last Day: Total energy output of last Day.
Display Duration Description
Table 6.1 Information Indicator
5.2 Stop the Inverter
Figure 6.2 Lock and Unlock the Screen of LCD
(a) (b)
.17. .18.

6.3 Settings
The following submenus are displayed when the Settings menu is selected:
1.Set Time
2.Set Address
3.Clear Energy
4.Restore Settings
6.3.1 Setting Time
This function allows time and date setting. When this function is selected, the LCD will
display a screen as shown in Figure 6.3.
NEXT=<ENT> OK=<ESC>
01-01-2010 16:37
Figure 6.3 Set Time
Press the UP/DOWN keys to set time and date. Press the ENTER key to move from one
digit to the next (from left to right). Press the ESC key to save the settings and return to
the previous menu.
6.3.2 Setting Address
YES=<ENT> NO=<ESC>
Set Address: 02
Figure 6.4 Set Address
Press the UP/DOWN keys to set the address. Press the ENTER key to save the settings.
Press the ESC key to cancel the change and return to the previous menu.
6.3.3 Clearing Energy
This function is used to clear energy (total energy, this month energy and last month energy).
When Clear Energy is selected, the screen will show the following figure (Figure 6.5).
Are you sure?
YES=<ENT> NO=<ESC>
Figure 6.5 Clear Energy
Press the ENTER key to confirm before executing clearing energy. Press the ESC key to
cancel the change and return to the previous menu.
6.3.4 Restoring Settings
.19. .20.
6. Operation 6. Operation
Do NOT use this function. The inverter is preset to standard AS4777, which must NOT be
changed. Access to this function may cause damage to the inverter and may void the
warranty.
This function is used to set the address of an inverter connected to PC for communication
purpose. The address number can be assigned from “01”to “99”(see Figure 6.4).
The default address number of Solis-2.5K-2G is “01”.

6.4 Advanced Info - Technicians Only
Select Advanced Info. from the Main Menu to display a screen that requires a password
(see Figure 6.8).
YES=<ENT> NO=<ESC>
Password: 0000
Figure 6.8 Advanced Info. Login
Type in the correct password and press the ENTER key to access the following information:
1.Alarm Message
2.Temperature
3.STD NO.
4.Version
5.Communication Data
Screens can be scrolled manually by pressing the UP/DOWN keys. Pressing the ENTER
key gives access to submenu. Press the ESC key to return to the Main Menu.
NOTE:
The default password of Solis-2.5K-2G is (0010)
6.4.1 Alarm Message
The display shows 10 latest alarm messages (see Figure 6.9). Screens can be scrolled
manually by pressing the UP/ DOWN keys. Press the ESC key to return to the previous
menu.
Alarm0: OV-G-V
Time: 27-11 Data: 7171
Figure 6.9 Alarm Message
6.4.3 STD NO.
The screen shows the reference standard of Solis-2.5K-2G (see Figure 6.11).
Standard: AS4777
Figure 6.11 Standard of the Inverter
6.4.4 Version
The screen shows the model version and the software version of Solis-2.5K-2G (see Figure 6.12).
Model: 07
Software Version: 8E06
Figure 6.12 Model Version and Software Version
6.4.5 Communication Data
The screen shows the internal data of Solis-2.5K-2G (see Figure 6.13), which is for service
technicians only.
01-05: 01 25 E4 9D AA
06-10: C2 B5 E4 9D 55
Figure 6.13 Communication Data
6.5 Advanced Settings - Technicians Only
Select Advanced Settings from the Main Menu to display a screen that requires a password.
Type in the correct password (refer to Section 6.4 if you do not know the password) and
press the ENTER key to access the following options:
1.Select Standard
2.Grid ON/OFF
3.New Password
.21. .22.
6. Operation 6. Operation
6.4.2 Temperature
The screen shows the power module temperature of Solis-2.5K-2G (see Figure 6.10).
Figure 6.10 Temperature of the Inverter
Temperature
046.6
℃
NOTE:
Access to this area is for fully qualified and accredited technicians only.
Unauthorized access to these areas may void the warranty.
NOTE:
Access to this area is for fully qualified and accredited technicians only.
Unauthorized access to these areas may void the warranty.

6.5.2 Grid ON/OFF
This function is used to start or stop the generation of Solis-2.5K-2G (see Figure 6.16).
Grid ON
Grid OFF
Figure 6.16 Set Grid ON/OFF
This function is used to select reference standard of grid (see Figure 6.14).
YES=<ENT> NO=<ESC>
Standard: AS4777
Figure 6.14
NOTE:
This function exists for technician use only.
NOTE:
You must set Grid OFF first (refer to Section 6.5.2) to use this function.
Press the UP/DOWN keys to select the standard (AS4777, VDE0126, UL1741, G83, User
-Def). Press the ENTER key to confirm the setting. Press the ESC key to cancel the change
and return to the previous menu.
Selecting the User-Def menu will access to the following submenu (see Figure 6.15):
OV-V: 240---270V
UN-V: 180---210V
OV-G-F: 50.3---52.0Hz(60.3—62.0Hz)
UN-G-F: 47.0---49.5Hz(57.0—59.5Hz)
NOTE:
The initial values of the User-Def standard are some reference values. They
are not indicating the values of the standard you are currently using.
Figure 6.15
Press the UP/DOWN keys to scroll through items. Press the ENTER key to edit the highlighted
item. Press the UP/DOWN keys again to change the setting. Press the ENTER key to save
the setting. Press the ESC key to cancel the change and return to the previous menu.
NOTE:
You must set Grid ON (refer to Section 6.5.2) before the new standard can
be used.
6.5.1 Selecting Standard
Screens can be scrolled manually by pressing the UP/DOWN keys. Press the ENTER key
to save the setting. Press the ESC key to return to the previous menu.
6.5.3 New Password
This function is used to change the password of Solis-2.5K-2G. Enter the new password you want
to set (see Figure 6.17).
Enter New Password
Password: 0000
Figure 6.17 Enter the Password
And then verify your new password (see Figure 6.18).
Verify New Password
Password: 0000
Figure 6.18 Verify the Password
The password has been changed successfully (see Figure 6.19).
Verify New Password
Done!
Figure 6.19 Successful Password Change
If the new password is failed to be verified, the screen will display an error message (see
Figure 6.20):
Warning:
Verify error!
Figure 6.20 Failed Password Change
.23. .24.
6. Operation 6. Operation
OV-V: 262V
UN-V: 210V
NOTE:
Your inverter must be set to AS4777 only.

7. Maintenance 8. Trouble Shooting
Solis-2.5K-2G does not require any regular maintenance from the user. However, impurities such
as dirt may affect the heat accumulation of the inverter and hence its performance. The dirt
on the inverter can be cleaned with a soft brush.
CAUTION:
Do not touch the heat sink when the inverter is operating. Some parts may be hot
and cause burns. Turn OFF your inverter (refer to Section 5.2) and let it cool down
before you do any maintenance or cleaning of inverter.
The LCD and the LED status indicator lights can be cleaned with a damp cloth if they are too
dirty to be read.
NOTE:
Never use any solvents, abrasives or corrosive materials to clean the inverter.
Alarm Message
OV-G-V
UN-G-V
OV-G-F
UN-G-F
G-IMP
NO-Grid
OV-DC
OV-BUS
UN-BUS
SHORT-PRO
INI-PRO
TEM-PRO
GROUND-PRO
Failure Scenario
Over grid voltage
Under grid voltage
Over grid frequency
Under grid frequency
Grid impedance high
No grid
Over DC voltage
Over DC bus voltage
Under DC bus voltage
Short circuit fault
System initial fault
Over Temperature
Ground fault
Table 8.1 Failure Scenarios
NOTE:
If your Solis-2.5K-2G gives any alarm message listed in Table 8.1, turn off your
inverter (refer to Section 5.2 to stop your inverter) and wait for 30 minutes
before restarting it (refer to Section 5.1 to start your inverter). If the failure
has not been cleared, contact your local distributor or the service center.
Please have the following information ready with you before you contact us.
1. Serial number of Solis-2.5K-2G;
2. The distributor/dealer of Solis-2.5K-2G (if available);
3. Installation date.
4. The description of problem (i.e. the alarm message displayed on the LCD and the status
of the LED status indicator lights. Other readings obtained from the Information submenu
(refer to Section 6.2) will also be helpful.);
5. System design for the solar PV array configuration (e.g. number of panels, capacity of
panels, number of strings, etc.);
6. Your contact details.
Trouble Shooting
Solis-2.5K-2G is designed in accordance with the standards of grid-tied operation, safety
requirements and electromagnetic compatibility. Before being delivered to the customer,
Solis-2.5K-2G has been subjected to several tests to ensure its optimal operation, reliable
performance and good durability.
If an operational failure occurs, the LCD screen will display an alarm message. In this
case, the inverter stops feeding into the grid. The possible failure scenarios and their
corresponding alarm messages are listed in Table 8.1:
.25. .26.

9. Specifications
.27.
Table 9.1 Specifications
The max DC input voltage:
MPPT operation range:
DC nominal voltage:
The max dc input current:
Rating output power:
The transient max power:
Rating grid voltage:
The grid voltage range:
Operation phase:
Rating grid output current:
Output power factor:
Grid current THD:
The dc injection current:
Rating grid frequency:
Efficiency:
Protection :
Size:
Weight:
Topology:
Internal consumption:
Running temperature:
Ingress protection:
Interface:
Design lifetime:
2.5kW
2.8kW
230Vac
180~270Vac
Single phase
10.9Aac
>0.99
<4%
<20mA
50Hz/60Hz
>97%
Isolation protection; temperature protection; short circuit protection; Etc
339Wx565Hx172.5D（mm）
14.5kg
Transformerless
<1W(Night)
-25℃~60℃
IP65
RS485/Wifi or GPRS(Optional)
>20 years
100-500Vdc
300Vdc
10Adc
600V
MPPT mode: Max power point tracking
Maximum input power: 2.5kW