Goodwe GW4K-DT User manual

340-00220-01
光伏并网逆变器
SOLAR INVERTER
SDT SERIES USER MANUAL
Company’s offcial website SEMS Portal website
www.sems.portal.com
SEMS Portal app

02
02
02
03
05
3 Installation
3.1 Mounting instruction
3.2 Inverter Overview and Package
3.3 Inverter Installation
3.4 Electrical Connection
11
11
11
16
16
16
4 System Operation
4.1 Indicator Lights
4.2 User Interface and Use of the Display
4.3 Error message
4.4 Wi-Fi Reset & Wi-Fi Reload
4.5 Special Adjustable Setpoints
17
5 Troubleshooting
18
6 Technical Parameters
20
7 Certificates
20
8 Maintenance
01
2 Safety
01
1 Symbols

SDT4~6KW
8
There is a risk of injury due to
improperly handle the device.
Component of product can be
recycled
Danger of high voltage and
electric shock.
This surface is upward, and it should
not be tilted and upended.
Danger of hot surface! Do not touch
the hot surface when the device is
running.
No more than eight (8) identical
packages be stacked on each other.
Product should not be disposed as
normal house hold waste.
The package/product should be handled
carefully and never be tipped over or slung.
Refer to the operating instructions
This symbol indicates that you should wait at
least 5mins after disconnecting the inverter
from the utility grid and from the PV pannel
before touch any inner live parts
Keep Dry
CE mark.
2 Safety
1 Symbols
The SDT series inverter of Jiangsu GoodWe Power Technolgy Co., Ltd. (hereinafter referred to as GoodWe) strictly conforms to
related safety rules in design and test. Safety regulation relevant to the location shall be followed during installation,
commissioning, operation and maintenance. Improper operation may have a risk of electric shock or damage to equipment
and property.(SDT: Dual-MPPT, Three - Phase.)
• Installation, maintenance and connection of inverters must be performed by qualified personnel, in commpliance with local
electrical standards,regulations and the requirements of local power authorites and/or companies.
• To avoid electric shock, DC input and AC output of the inverter must be disconnected and wait at least 5 minutes before
performing any installation or maintenance.
• The temperature of some parts of the inverter may exceed 60℃ during operation. To avoid being burnt, do not touch the
inverter during operation. Let it cool before touching it.
• Keep children away from inverter.
• Do not open the front cover of the inverter. Apart from performing work at the wiring terminal (as instructed in this manual),
touching or changing components without authorization may cause injury to people, damage to inverters and annulment of
the warranty.
• Static electricity may damage electronic components. Appropricate method must be adopted to prevent such damage to
the inverter, otherwise the inverter may be damage to inverter and annulment of the warranty.
• Ensure that the output voltage of the proposed PV array is lower than the maximum rated input voltage of the inverter;
otherwise the inverter may be damaged and the warranty will be annulled.
• When exposed to sunlight, the PV array generate dangerous high DC voltage, Please operate according to our instructions, or
it will result in danger to life.
• PV modules should have an IEC61730 class A rating.
• If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be
impaired.
• Completely isolate the equipment should: switch off the DC switch, disconnect the DC terminal, and disconnect the AC
terminal or AC breaker.
• Prohibit inserting or pulling the AC or DC terminals when the inverter is electrified.
• If there are more than 3 PV strings on input side, an additional fuse installing will be suggested.
• An earthing photovoltaic system need to connect an Arc fault detecotr on DC side.
• The inverter can exclude the possibility of DC residual currents to 6mA in the system, Where an external RCD is required in
addition to the built-in RCMU, type A RCD must be used to avoid tripping.
• The PV is not grounded as default configuration.
To ensure IP65, inverters must be sealed well, please install the inverters in one day after unpacking, otherwise
please seal all unused terminals/holes, not allowed to keep any terminals/holes open, confirm there is no risk to
have water&dust in.
3 Installation
3.1 Mounting Instruction
• In order to achieve optimal performance, the ambient tmperature should be lower than 45℃.
• For the convenience maintenance activities, please install the inverter at eye level.
• Inverters should NOT be installed near inflammable and explosive items. Any strong
electro-magnetic should be kept away from installation site.
• Product lable and warning symbol shall be clear to read after installation.
• Please install inverter in the place where is not exposed to direct sunlight, rain and snow.
3.2 Inverter Overview and Package
Check the scope of delivery for completeness and any visible damage.
3.2.1 Inverter Overview
SDT4~6KW Refer to Figure3.2.1-1，SDT8~15KW Refer to Figure3.2.1-2.
1. PV input terminals
2. DC Switch (Optional)
3. Com Model
4. AC output terminal
5. Indicator lights
6. Button
Direct Sunlight Rain Exposure Snow Lay Up No Direct Sunlight No Rain Exposure No Snow Lay Up
Figure 3.2.1-1
DRED
METER
0201
6

Max
3.3 Inverter Installation
3.3.1 Selecting the installation location
The following must be considered when selecting the best location for an inverter:
• The mount and installation method must be appropriate for the inverter’s weight and
dimensions.
• The location must be well ventilated and sheltered from direct sunlight.
• The inverter must be installed vertical or with a backward tilt less than 15.No sideways tilt is
allowed. The connection area must point downwards. Refer to Figure 3.3.1-1.
3.3.2 Mounting Procedure
(1) Use the wall-mounted bracket as a template and drill holes in the wall, 10 mm in diameter
and 80mm deep. SDT referred Figure 3.3.2-1.
(2) Fix the wall mounting bracket on the wall using the expansion bolts in the accessories bag.
(3) Hold the inverter by the side groove as Figure 3.3.2-2.
(4) Install the inverter on the wall-mounted bracket. SDT referred to Figure 3.3.2-3.
To allow dissipation of heat, and for convenience of dismantling, clearnaces around the
inverter must be at least:
The installation position shall not prevent access to the disconnection means.
1. PV input terminals
（SDT12~15KW PV *3pair）
2. DC Switch (Optional)
3.2.2 Package
Figure 3.3.1-2
Figure 3.3.2-1
Figure 3.2.1-2
Figure 3.3.1-1
Upward
Downward
Front
Both sides
-------------500mm
---------500mm
----------------300mm
----------200mm
Inverter *1
PE Terminal *1
Com Model
Wi-Fi Connection
Guide *1
（WiFi Model Only）
User Manual *1 Quick Installation
Guide *1
Expansion Bolts *6
Wall-mounted
Bracket *1
AllenWrench *1
（VACONN AC PLUG Only）
Wi-Fi
Connection
Guide
DC Plug *2pair AC Connector Screw*6
APP
200mm
100mm
45mm
SDT8~15KW
7
6
6. Indicator lights
7. Button
3. Com Model
4. AC output terminal
5. Fan
0403

3.4 Electrical Connection
3.4.1 Connection to grid (AC side Connection)
(1) Check the grid voltage and frequency if it can comply with the required voltage and
frequency of inverter connection.
(2) Add breaker or fuse to AC side, the specification should be more than 1.25 times of rated AC
output current.
(3) The PE line of inverter should be connected the earth, make sure the impedance of neutral
wire and earth wire less than 10ohm.
(4) Disconnect the breaker or fuse between the inverter and the utility.
(5) Connect the inverter to the gird as follows:There are two AC connector brands for inverter,
VACONN and WIELAND. Please refer to Figure 3.4.1-1.
(6) The AC line construction shall be such that if the cord should slip in its anchorage, placing a
strain on condutors, the protective earthing conductor will be the last to take the strain. such
as the PE line is longger than L and N.
Note: Multiple inverters are not allowed to share a circuit breaker.
The integrated leakage current detection device of the inverter can detect external leakage
current in real time. When the detected leakage current exceeds the limit value, inverter will
quickly disconnect with the grid, If the leakage current protection device is installed external-
ly, the action current should be 300mA or higher.
3.4.3 DC Side Connection
（1）Before connecting the PV strings, please ensure the plug connectors have the correct
polarity. Incorrect polarity could permanently damage the unit.
（2）The open circuit voltage of the PV strings cannot exceed the maximum input voltage of
the inverter.
（3）Only DC connectors provided by us are permitted to use.
（4）The positive and negative pole is forbid to connect PE wire（Ground wire）, otherwise, it
will damage the unit.
（5）Don’t connect positive or negative pole of PV string to PE wire. Otherwise , it will cause
damage to inverter.
（6）Positive shall be red, negative shall be black.
（7）The minimum insulation resistance to ground of the PV panels for SDT series must
exceed 33.4KΩ（R=1000/30mA）, there is a risk of shock hazard if the requirement of minimum
resistance is not met.
*Neutral conductor shall be blue, line conductor shall be black or brown（preferred,protec-
tive earth bonding line shall be yellow-green.
*Fix（moment:0.6N.m）the connector of AC cable to the corresponding terminals.
3.4.2 AC circuit breaker and leakage current protection device
In order to ensure that the inverter can be safe and reliable to disconnect from the power grid,
please install an independent two pole circuit breaker to protect the inverter.
Installation instruction of VACONN series please refer to figure 3.4.1-2.
Cable specification of AC side please refer to Figure 3.4.1-3.
VACONN Series
fasten screw cap clockwise fasten screw cap clockwise
Fastening three screws to
ensure each screw head is
not exceeding the surface
Material (Annealed copper wire)
Figure 3.3.2-2 Figure 3.3.2-3
Figure 3.4.1-1
Figure 3.4.1-2
Recommended circuit breaker specifications
16A
25A
32A
Inverter model
GW4K-DT / GW5K-DT / GW6K-DT
GW8K-DT / GW10K-DT
GW12K-DT / GW15K-DT
Figure 3.4.1-3
Grade
A
B
C
Value
10~12mm
2.5~6mm2
10mm around
Description
O.D.
Bare Wire Length
Conductor Material
Sectional Area
0605
Pin1 ------ R phase
Pin2 ------ S phase
PinL ------ T phase
PinN ------ T phase
PinPE ----- PE phase

DC Cable specification is showed as Figure 3.4.2-2.
DC Cable should be use dedicated PV cable
(Suggest using 4mm PV1-F wire)
Installation instruction of SUNCLIX please refer to Figure 3.4.3-3.
3.4.4 Earth Terminal Connection
The inverter is added earth terminal
according to the requirement of EN 50178.It
is must that installation person should
connect the terminal to earthing wire.
Position of earth terminal as Figure 3.4.3-1.
The earth connecting terminal is on the side
of inverter, illustrated as Figure 3.4.4-1. The
customer should select to grounding base
on site condition.
3.4.5 Wi-Fi Communication
The Wi-Fi communication function is only applied to WiFi BOX, the detailed configuration
instruction can be referred to Wi-Fi Configuration in the accessory box.
After configuration, please browse http://www.goodwe-power.com to create PV station.
3.4.6 Power Limiting Device & DRED Installation
Connection method of Power Limiting device Meter please refer to Figure 3.4.6-1.
Figure 3.4.3-1
Figure 3.4.6-1
Figure 3.4.4-1
Figure 3.4.3-2
Figure 3.4.3-4
Special tools are used to stitching
MC4 series & QC4.10 series DEVALAN series & AMPHENOL series
Limit buckle can not
crimping the wire
Negative connector
Positive connector
DEVALAN SERIES MC4 SERIES
AMPHENOL SERIES QC4.10 SERIES
There are three types of DC connectors, SUNCLIX/MC4 and AMPHENDL H4 series. Please refer
to Figure 3.4.3-1.
0807

Note:
Make sure" DRED "function or "Remote Shutdown" function is connected to the machine,
otherwise the machine will not work properly.
Connection Procedure:
• Put the cable through the components in this order: screw cap, one-hole sealing ring,
insulation body and sheet metal parts.
• Pull out the 6-pin terminal from the socket in the cabinet and take off the resistor which is
fixed in it.
Cable should be connected as Figure 3.4.8-2.
• Insert the green terminal into the corresponding interior terminal of the inverter. Pull cable
softly to maintain the cable not to be pulled out.
• Lock the sheet metal parts onto the box and tighten the screw cap.
1. DRED connection is only available for Australia and New Zealand.
2. Supported DRED command: DRM0, DRM5, DRM6, DRM7, DRM8.
3. After installation is completed, please set up power limiting referring to section 4.2（6）.
4. Pay attention to the direction of Meter when wiring. Meter clip should be locked tight.
White/Black cable should connect Line 2, black cable should connect Line 1.Tighten them
with screwdriver. Make sure Meter cables connected to the right output phase lines of
inverter when in use.
3.4.7 Earth Fault Alarm
The inverter complies with IEC62109-2 chapter 13.9. When earth fault occurs,the fault
indicator LED on front cover will light up, and, for non wifi inverter ,the buzzer in inverter will
keep ringing 1 minute and ring again after half an hour unless the fault is resolved(This
function is only available to Australia/ New Zealand).
Figure 3.4.8-2
Figure 3.4.7-1
DRED
ME TE R
DRED
Meter
Function
DRM1/5
DRM2/6
DRM3/7
DRM4/8
REFGen
Com/DRM0
Function
Meter +
Meter -
NO.
1
2
3
4
5
6
NO.
1
2
Tightening the screws and the
screws are not over the surface
CablesThe insulator
Screw cap
Single hole seal ring
Remote shutdown and DRED：
You need to connect 5 and 6 pins with a resistor to use "DRED " function ( for Australia ) or
connecting 4 and 5 pins to use "Remote Shutdown" function ( for Europe ) , you can't use both
of them at the same time. You can only choose one of them.
1009

display an error message. Refer to Table 4.3.
Through key operation, the screen can display different information such as operation
parameters and power generation status in this area. There are two levels of menus, and
the flow chart of first level menu is shown below:
(3) Use of the display
There are 2 modes of button operation: short press and long press.
(4) Use of the display and LCD display
The display allows accessing the configuration of the basic parameters. All the language,
All the language, time and country setting can be configured by buttons. The menu, shown
in the LCD display area has two levels of menu. Short and long key presses will take you
between menus and through each menu. Items in the first level menu that have no second
level are locked. For these items, when the key is pressed for two second, the LCD will
display the word“ Lock ”followed by data relating to the first level menu item. The
locked menu can only be unlocked under system mode switching, fault occurrence or key
operation.
In all levels of menu, If no action is taken for 20 seconds, the backlight of the LCD display
will switch off, the display will automatically revert to the first item of the first level menu,
and any modifications made to the data will be stored into internal memory.
(5)Menu Introduction
• When the PV panel is feeding power to the inverter, the screen shows the first-level menu.
• The initial display is the the first item of the first level menu, and the interface displays the
current status of the system, It shows“ Waiting Pac=0.0W ” in the initial state; it
shows “ Normal Pac=6000.0W ”during power generation mode; if there is something
wrong with the system, an error message is shown. Please refer to chapter 5.
View PV voltage, PV current, grid voltage, current and frequency:
• Short press the key to enter the E-Today menu which display the total power generation
for today.
• Short press the key to enter the E-Total menu which display the total power generation
for Until today.
• Short press the key to enter the Vpv menu which display the PV voltage in “V”.
• Short press the key to enter the Ipv menu which display the PV current in “A”.
• Short press the key to enter the Vac menu which display the grid voltage in “V”.
• Short press the key once more to enter the Iav menu which display the grid current in
“A”.
• Short press the key once more to enter the Frequency menu which display the grid
frequency in HZ.
• View Error massage
Short press the key once more to enter the Error Massage History menu.
Long press（2s）the key to enter the second level menu of error detection. The last three
inverter error massage will be shown by short pressing the key in this second level menu.
4.2 User interface and use of the display
Set Safety Country:
If display shows“ GW6K-DT Pac=6000.0W ”, then long press (2S) the key to enter the
second level menu. Short press to browse the safety country available. Please waiting for 10s
after choose suitable safety country ,then display will show“setting...” and jump to“ Set
OK ”or“Set Fail”.
(1) A schematic of the display screen is shown as below:
Display area is divided as follows:
(2) Display area
Line 1---Working status information
This area displays the status information.“ Waiting Pac=0.0W ”indicates the inverter is
standby for power generation;“ Checking**S Pac=0.0W ” (checking time is based on
safety, and varies from country to country) indicates the inverter is self-checking, counting
down and preparing for power generation.“ Normal Pac=6000.0W ”indicates the
inverter is generating power. If any condition of the system is abnormal, the screen will
4 System Operation
4.1 Indicator Lights
Indicator lights in Yellow/Green/Red correspondently refer to
ON = WiFi CONNECTED / ACTIVE
BLINK 1 = WiFi SYSTEM RESETTING
BLINK 2 = WiFi ROUTER PROBLEM
BLINK 4 = WiFi SERVER PROBLEM
OFF = WiFi NOT ACTIVE
ON = INVER TER IS FEEDING POWER
OFF= INVER TER IS NOT FEEDING POWERATTHE MOMENT
ON = FAULT OCCURRED
OFF = NO FAULT
Normal
Pac=6000.0W
Line 1
Line 2
POWER
RUN
FAULT
1211

The records include error massage and error times（190520 15：30）. Error massage can
be Found in Table 4.3.
• View model name and reconfigure safety country:
From the error massage history item in the first level menu, short press the key once to
see model name.
If you want to change the safety country, please hold the key for 2 seconds, then the LCD
screen will go to the second level menu.
In the second level menu, short press the key can change the safety country. If you change
nothing in second level menu and without pressing button in 20 seconds ,then the
backlight of LCD will power off and return to the first level menu. If you change the
safety country ，the LCD screen will show:“Setting...”after 10 seconds then show :
“ Set Fail”or“Set OK”.
• View software version
From the model name item in the first level menu, short press the key once to see
software version.
The current software version can be shown in this menu.
Setting:
• Set language:
Short press the button to enter the Set Language menu. Long press（2s）the key to enter
the second level menu. Short press to browse the languages available. If you change
nothing in second level menu and without pressing button in 20 seconds , then the
backlight of LCD will power off and screen return to the first level menu. If you change
the Language，the LCD screen will show：“Setting...” after 10 seconds then show :
“Set OK” or “ Set Fail ”.
• Set time:
From the first level Set language menu, short press the key to enter the Set Time menu.
Long press（2s）the key to enter the second level menu. The initial display is
“2019-00-00 00:00”, in which the first four numbers represent the year（e.g 2000-2099）;
the fifth and sixth number represent the month（e.g 01-12）; the seventh and the eighth
numbers represent the data（e.g 01-31）. The remaining number represent the time.
Short press increase the number in current location, and long press to move the cursor to
next position. The inverter will store the time the time after 20 seconds without any key
operation, and the LCD will automatically return to the main menu and the backlight will
switch off.
• Set protocol:
The function is only used for service personnel, set wrong protocol could lead to commu-
nication failure.
From the first level Set Time menu, short press the key once to enters protocol display
menu. Press the Key for 25 to enter submenu. The circulatory submenu including two
protocols can be found. The protocol can be chosen by short pressing the key. The
inverter will store the chosen protocol without any action within 255 and LCD display will
automatically return to main menu when the backlight is off.
• MPPT function for Shadow:
1413
50Hz GridDefault
Lock
No Error
Utility Loss
190520 05：21
50Hz GridDefault
Language
Portuguese
Ipv= 4.1/ 4.1A
Pac=6000W
Vpv=325.5/325.5V
Pac=6000W
E-Total=533.17KWh
Pac=6000W
E-Today= 15.2KWh
Pac=6000W
Normal
Pac=6000W
First Level menu
Short press
Short press
Short press
Short press
Short press
Error History
Pac=6000W
GW 6K-DT
Pac=6000W
Ver:
V1.XX .XX .XX
Set Language
Pac=2595.5W
Set Time
Pac=6000W
WiFi Reset
Pac=6000W
Short press
Short press
Short press
Short press
Short press
Short press
WIFI
WiFi Reload
Pac=6000W
Long press 2S
Second Level menu
Long press 2S
Long press 2S
Long press 2S Short press for
safety country select
Long press 2S
Short press
Short press
2000-00-00 00：00
2000-00-00 00：00
���
2000-00-00 00：00
Short press to set
The second number
Long press 2S
Long press 2S
Long press 2S
Long press 2S
Long press 2S
Short press to set
The third number
Short press to set
The last number
WiFi Resetting
Long press 2S WiFi Reset OK
WiFi Reset Fail
Wait 25s
WiFi Reloading
Long press 2S WiFi Reload OK
WiFi Reload Fail
Wait 25s
PF Adjust
Pac=6000W
Short press
Short press
Shadow MPPT OFF
Pac=6000W
Shadow MPPT ON
Pac=6000W
Power Limit OFF
Pac=6000W
Power Limit ON
Pac=6000W
Set Power Limit
XXX %
Set Modbus Addr
Pac=6000W
Disable
lagging 0.95
lagging 0.95
lagging 0.95
Short press to select
Leading Or lagging
Long press 2S
Long press 2S Long press 2S
Short press to select
Number 8 or 9
Short press to select
Number 0~9
Set Power Limit
XXX %
Set Power Limit
XXX%
Set Power Limit
XX X%
Long press 2S
Long press 2S Long press 2S
Long press 2S
Short press Short press
Set Addr ：XXX
Set Addr ：XXX
Set Addr ：XX X
Long press 2S
Long press 2S Long press 2S
Short press to select
Number 0~9
Short press to select
Number 0~9
Short press to select
Number 0 or 1
Short press to select
Number 0~2
Short press to select
Number 0~9
Short press to select
Number 0~9
Short press
Or
Long press 2S
Short press
Short
press
Or
Long press 2S
Short press
Short press
Long press 2S
Set time
Set MOBUS
adress
Vac=
230/230/230V
Iac=
11.1/11.1/11.1A
Fac=50.02HZ
Short press
Short press
Wait 10s Set OK
Set Fail
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
Wait 10s
LVRT ON
Pac=6000W
Short press
Long press 2S
Set OK
Set Fail
LVRT OFF
Pac=6000W
Long press 2S
Or
Setting ...
Setting ...
Setting ...
Setting ...
Set OK
Set Fail
Setting...
Set OK
Set Fail
Set OK
Set Fail
Set OK
Set Fail
Setting ...
Wait 10s
RSSI : 0%
Pac=6000W
Grid Type
Pac=6000W Delta Grid
Star Grid
Set OK
Set Fail
Setting ...
Short press
Long press 2S
Short press
Wait 10s
Long press 2S to set password,
the default password is “1111”
Pac=6000W

The default setting for shadow optimizer is disabled.
Please do not enable the function when there’s no shadow on panel. Otherwise it could
lead to generate less power.
Press the key until enter Shadow Optimize menu. When it shows“ Shadow MPPT
OFF ”, it means the shadow optimizer is on. Press the key 25 to disable the function.
(6) Power limiting function setting
The Operations that the ON/OFF of power limiting function (the default is OFF) and the
power limiting settings (the default is 2% rated) are shown below:
Note:
If the power limiting function is ON, the maximum output power of the inverter will be
limited at the power limiting setting value while the inverter is without the power limmiting
device (such as a CT/Meter) or the power limiting device is out of work.
You need to enter a password before setting up power limit . The default password is
“1111”.(only for Australian security regulations)
(7) Operation of Display when commissioning.
When the input voltage reaches the inverter turn-on voltage, the LCD starts to work, the
yellow light is on and the LCD displays“ Waiting ”. More information will be displayed
within a few second. If the inverters is connected to the grid, “ Checking XXs ” will be
displayed and a countdown will commence from 30 seconds. when it shows “ 00S ”you
will hear the relay triggered 4 times. The LCD will then display “ Normal ”. The instant
power output will be shown at the left bottom of the LCD.
4.4 Wi-Fi Reset & Wi-Fi Reload
The two functions are only available for Wi-Fi model inverters.
Wi-Fi reload function is used to change the Wi-Fi configuration to default value.
Please configure the Wi-Fi again as 3.4.5 after using the function.
Press the key until the LCD displays “ Wi-Fi Reload ”, then long press (2S) until the LCD
displays "Wi-Fi Resetting...". Stop pressing and wait for the screen showing“ Wi-Fi Reset
OK ” or “ Wi-Fi Reset Failed ”.
Press the key until the LCD displays “ Wi-Fi Reload ”, then long press (2S) until the LCD
displays “ Wi-Fi Reloading... ”. Stop pressing and wait for the screen showing “ Wi-Fi
Reloading OK ” or “ Wi-Fi Reloading Failed ”.
4.5 Special Adjustable Setpoints
The inverter has field adjustable function,such as trip points,trip times, reconnect times,active
and invalid of QU curve,PU curve.
It is adjustable through special software ,if you want to use it ,plaese contact with after sales.
The methods document of using the software can download from goodwe website or contact
with after sales.
4.3 Error message
An error message will be displayed on the LCD if a fault occurs.
Error mess
Fac Fail
Isolation Fail
Vac Fail
PV Over Voltage
Over Temperature
Utility Loss
Description
Grid frequency out of pemissible range
Grund insulation impedance is too low
Grid voltage out of permissible range
Overvoltage at DC input
Over temperature on the case
Utility is unavailable
Long press 2S
Long press 2S
Long press 2S
Long press 2S
Long press 2S Set Power Limit
XXX %
Short press to select
Number 0 or 1
Short press to select
Number 0~9
Short press to select
Number 0~9
Short press
Or
Short press
Short press
Or
Short press
Short press
Set OK
Set Fail
Wait 10s
Wait 10s
Wait 10s
Setting...
PF Adjust
Pac = 6000W
Shadow MPPT OFF
Pac = 6000W
Power Limit OFF
Pac = 6000W
Power Limit ON
Pac = 6000W
Set Power Limit
XXX %
Shadow MPPT ON
Pac = 6000W
Set Power Limit
XXX %
Set Power Limit
XXX %
Long press 2S
1615

6 Technical Parameters
5 Troubleshooting
In most situations, the inverter requires very little maintenance. However, if the inverter is not
working properly, please try the following troubleshooting solutions;
• When a problem occurs, the red (fault) LED indicator on the front panel will light up and the
LCD screen will display the type of fault, The following table lists error messages and the
solutions for associated faults.
Note:
When sunlight is insufficient, the PV Inverter may continuously start up and shut down
automatically due to insufficient power generated by the PV panels, which would not lead to
inverter damage. If the problem still exits, please call the local service office.
Technical Data
PV Input Data
Max. DC Power (W)
Max. DC Input Voltage (V)
[1]
MPPT Range (V)
Starting Voltage (V)
Max. Input Current (A)
Max. Short Current (A)
No. of MPP Trackers
No. of Input Strings per Tracker
AC Output Data
Nominal Output Power (W)
Max. Output Apparent Power (VA)
Nominal Output Voltage (V)
Nominal Ouput Frequency (Hz)
Max. Output Current (A)
Output Power Factor
Output THDi (@Nominal Output)
Efficiency
Max. Efficiency
Europe Efficiency
Protection
Anti-islanding Protection
Input Reverse Polarity Protection
Insulation monitoring
DC Surge Protectioin
AC Surge Protectioin
Residual Current Monitoring Unit
AC Over Current Protection
AC Short Protection
AC Over Voltage Protection
General Data
Operating Temperature Range (℃)
Relative Humidity
Operating Altitude (m）
Cooling
noise (dB)
User Interface
Communication
Weight (kg)
Size (Width*Height*Depth mm）
Protection Degree
Night Self Consumption (W)
Topology
GW6K-DT
9000
1000
180~850
160
12.5/12.5
15.6/15.6
2
1/1
6000
6600
400, 3L/N/PE
50/60
9.6
<3%
98.2%
＞97.6%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Natural Cooling
<30
LED or LCD
WiFi or LAN(Optional)
15
354*433*147
IP65
<1
Transformerless
GW8K-DT
12000
1000
180~850
160
12.5/12.5
15.6/15.6
2
1/1
8000
8800
400, 3L/N/PE
50/60
12.8
<3%
98.2%
＞97.6%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Fan Cooling
<30
LED或LCD
WiFi or LAN(Optional)
16
354*433*155
IP65
<1
Transformerless
GW5K-DT
7500
1000
180~850
160
12.5/12.5
15.6/15.6
2
1/1
5000
5500
400, 3L/N/PE
50/60
8
<3%
98.2%
＞97.6%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Natural Cooling
<30
LED or LCD
WiFi or LAN(Optional)
15
354*433*147
IP65
<1
Transformerless
GW4K-DT
6000
1000
180~850
160
12.5/12.5
15.6/15.6
2
1/1
4000
4400
400, 3L/N/PE
50/60
6.4
3%
<3%
98.2%
＞97.6%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Natural Cooling
<30
LED or LCD
WiFi or LAN(Optional)
15
354*433*147
IP65
<1
Transformerless
~1 (Adjustable from 0.8 leading to 0.8 lagging)
1. Disconnect DC switch, take off DC connector, Check the impedance between PV (+) & PV (-) to earth.
2. If impedance is less than 100KΩ, please check the insulation of PV string wiring to the earth.
3. If impedance is larger than 100KΩ, please contact local service office.
4. Take off AC connector, measure the impedance between neutral and PE. If it is larger than 10 KΩ,
please check AV wiring.
1. Disconnect the DC switch, taking off AC connector, measure the voltage between line and neutral
no connector, make sure if it conforms to the grid-connected specification of inverter.
2. If it does not, please check if the distribution switch is connected and the grid is normal.
3. If it does, reconnect AC connector and DC connector; If the problem still exits, please call the local
service office.
1. Disconnect the DC switch , take off DC connector, check PV string voltage, make sure if it
exceeds the input voltage in inverter specification.
2. If it does, please reconfigurate PV panel string.
3. If the problem still exits, please call the local service office.
1. Please check if installation position conforms to the specification.
2. Try to lower the surrounding temperature.
3. Move the inverter to vents or alter the installation position.
4. If the problem still exits, please call the local service office.
1. Disconnect the DC connector.
2. Reconnect the DC connector.
3. If the problem still exits, please call the local service office.
1. Disconnect the DC connector.
2. Reconnect the DC connector.
3. If the problem still exits, please call the local service office.
1. Disconnect the DC switch, take off DC connector, measure the voltage of PV string.
2. Plug in DC connector, and reconnect DC switch.
3. If the voltage is less than 70V, please check the PV string configuration.
4. If the voltage is higher than 125V and still no display, please contact local service office.
1. Disconnect DC switch, check the insulation of PV string wiring to earth.
2. Reconnect the DC switch again.
3. If te problem still exits, please call the local service office.
1. Disconnect DC switch, taking off AC connector, measuring the voltage between line and neutral in
connector, make sure if it conforms to the grid-connected specification of inverter.
2. If it does not, please check grid wiring.
3. If it does, please connect AC connector, reconnect DC switch, inverter will connect grid
automatically. If the probiem still exits, please call the local service office.
1.The PV inverter will automatically restart if the Fac returns to normal.
2.If the problem still exits, please call the local service office.
Others No display
Vac Fail
Fac Fail
Display Troubleshooting
Ground I Fail
Isolation Fail
GFCI Fail
DC Bus High
SPI Fail
EEPROM R/W Fail
Relay-Check Fail
Over Temperature
PV Over Voltage
Utility Loss
System
failure
System
failure
Inverter
failure
DCI High
1817

IEC62109-1/-2 VDE-AR-N 4105
Moisture parameters
Temperature Range
Humidity Range
3K3
0~+40℃
5%～85%
4K2
-33~+40℃
15%～100%
4K4H
-20~+55℃
4%～100%
Level
7 Certificates
VDE0126-1-1
EN50549 AS4777.2 IEC62116 IEC61727
Note：
Overvoltage category definition
Category I: applies to equipment connected to a circuit where measures have been taken to
reduce transient overvoltage to a low level.
Category II: applies to equipment not permanently connected to the installation. Examples
are appliances, portable tools and other plug-connected equipment;
Category III: applies to fixed equipment downstream of and including, the main distribution
board. Examples are switchgear and other equipment in an industrial installation;
Category IV: applies to equipment permanently connected at the origin of an installation
(upstream of the main distribution board)
Example are electricity meters, primary overcurrent protection equipment and other equip-
ment connected directly to outdoor open lines.
Moisture location category definition
Environment category definition
Outdoor : the ambient air temperature is -20~50℃, Relative humidity range is 4%to 100%，
applied to PD3.
Indoor unconditioned: the ambient air temperature is -20~50 ℃, Relative humidity range is 5%
to 95%,applied to PD3.
Indoor conditioned: the ambient air temperature is 0~40 ℃, Relative humidity range is 5%to
85%,applied to PD2.
Pollution degree definition
Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution
has no influence.
Pollution degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a
temporary conductivity caused by condensation must be expected.
Pollution degree 3: Conductive pollution occurs, or, dry, non-conductive pollution occurs
which becomes conductive due to condensation which is expected.
Pollution degree 4: Persistent conductive pollution occurs, for example, the pollution cause by
conductive dust, rain and snow.
8 Maintenance
Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant.
Caution: Before maintains please disconnect the AC breaker firstly and then disconnect DC
breaker. Wait 5 minutes until the residual voltage has been drained.
GW12KT-DT
18000
1000
180~850
160
12.5/25
15.6/31.2
2
1/2
12000
14000
400, 3L/N/PE
50/60
20.3
<3%
98.3%
＞97.7%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Fan Cooling
<30
LED or LCD
GPRS or LAN（Optional）
18
354*433*155
IP65
<1
Transformerless
GW15KT-DT
22500
1000
180~850
160
12.5/25
15.6/31.2
2
1/2
15000
16500
400, 3L/N/PE
50/60
24
<3%
98.3%
＞97.7%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Fan Cooling
<30
LED或LCD
GPRS or LAN（Optional）
18
354*433*155
IP65
<1
Transformerless
GW10KT-DT
15000
1000
180~850
160
12.5/12.5
15.6/15.6
2
1/1
10000
11000
400, 3L/N/PE
50/60
16
<3%
98.3%
＞97.7%
Integrated
Integrated
Integrated
Integrated（Type III）
Integrated（Type III）
Integrated
Integrated
Integrated
Integrated
-30~60
0~100%
≤4000
Fan Cooling
<30
LED or LCD
GPRS or LAN（Optional）
16
354*433*155
IP65
<1
Transformerless
~1 (Adjustable from 0.8 leading to 0.8 lagging)
Technical Data
PV Input Data
Max. DC Power (W)
Max. DC Input Voltage (V)
[1]
MPPT Range (V)
Starting Voltage (V)
Max. Input Current (A)
Max. Short Current (A)
No. of MPP Trackers
No. of Input Strings per Tracker
AC Output Data
Nominal Output Power (W)
Max. Output Apparent Power (VA)
Nominal Output Voltage (V)
Nominal Ouput Frequency (Hz)
Max. Output Current (A)
Output Power Factor
Output THDi (@Nominal Output)
Efficiency
Max. Efficiency
Europe Efficiency
Protection
Anti-islanding Protection
Input Reverse Polarity Protection
Insulation monitoring
DC Surge Protectioin
AC Surge Protectioin
Residual Current Monitoring Unit
AC Over Current Protection
AC Short Protection
AC Over Voltage Protection
General Data
Operating Temperature Range (℃)
Relative Humidity
Operating Altitude (m）
Cooling
Noise(dB)
User Interface
Communication
Weight (kg)
Size (Width*Height*Depth mm）
Protection Degree
Night Self Consumption (W)
Topology
[1]Please make sure the voltage of PV string will not exceed the Max. DC voltage.
2019