Goodwe DNS Series User manual

User Manual
Grid-Tied PV Inverter
DNS Series
V1.6-2022-01-20

1 Symbols ............................................................................................................................ 01
2 Safety Measures & Warning .......................................................................... 02
3 Product Introduction .......................................................................................... 04
3.1 Inverter Overview .................................................................................................................... 04
3.2 Package .................................................................................................................................................. 05
4 Installation ..................................................................................................................... 05
4.1 Mounting Instructions ........................................................................................................................ 05
4.2 Equipment Installation ...................................................................................................................... 06
4.3 Electrical Connection ......................................................................................................................... 07
4.4 Communication Connection ............................................................................................................ 12
5 System Operation ................................................................................................... 17
5.1 LCD Panel ............................................................................................................................................. 17
5.2 User Interface And System Con󽗉guration ....................................................................................... 17
5.3 Error Message ....................................................................................................................................... 23
5.4 Wi-Fi Reset & Wi-Fi Reload ................................................................................................................. 24
5.5 Precaution For Initial Startup ............................................................................................................ 24
5.6 Special Adjustable Setpoints ............................................................................................................ 25
6 Troubleshooting ...................................................................................................... 27
7 Technical Parameters ................................................................................................... 29
8 Maintenance ............................................................................................................................. 29
9 Power o󽗈 the inverter................................................................................................... 29

01
1 Symbols
Failure to observe warnings indicated in this manual may result in
injury.
Recyclable materials
Danger of high voltage & electric shock
This side up - The package must always have
the arrows point up
Don't touch, hot surface!
No more than six (6) identical packages be stacked on each other.
Special disposal instructions
Fragile
Keep Dry
Refer to operation instructions
Wait at least 5 minutes after disconnecting the inverter before
touching internal parts
CE mark

02
2 Safety Measures & Warning
The DNS series inverter of GoodWe Technologies Co., Ltd. (hereinafter referred to as GOODWE)
strictly conforms to related safety rules in design and test. Safety regulations relevant to the
location shall be followed during installation, commissioning, operation and maintenance.
Improper operation pose a risk of electric shock or damage to equipment and property. (DNS
Dual-MPPT, Single-Phase)
• Installation and connection of inverters must be performed by quali󽗉ed personnel, in
compliance with local electrical standards, regulations and the requirements of local power
authorities and/or companies.
• To avoid electric shock, DC input and AC output of the inverter must be disconnected for 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 the inverter.
• Do not open the front cover of the inverter, except operating 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. Appropriate methods must be adopted to
prevent such damage to the inverter; otherwise the inverter may be damaged and the warranty
annulled.
• Ensure the output voltage of the proposed PV array is lower than the maximum rated inut
voltage of the inverter; otherwise the inverter may be damaged and the warranty annulled.
• When exposed to sunlight, the PV array generates 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 way not speci󽗉ed by the manufacturer, the protection provided by
the equipment's design may be impaired.
• To completely isolate the equipment: switch o󽗈 the DC switch, disconnect the DC terminal, and
disconnect the AC terminal or AC breaker.
• Insert or pull the AC and DC terminals when the inverter is powered on is prohibited.

03
• If there are more than 3 PV strings on input side, additional fuse installation will be suggested.
• An earthing photovoltaic system requires the connection of an Arc fault detector on DC side.
• The inverter can exclude the possibility of DC residual currents, where an external RCD is
required in addition to the build=in RCMU, type B RCD must be used to avoid tripping.
• The PV- is not grounded as default con󽗉guration.
• Inverters should not be used in multiple phase combinations.
To ensure IP65, inverters must be sealed well, please install the inverters within one day
after unpacking. Please seal all used terminals / holes, any unused terminals / holes are
not allowed to be kept open. Make sure that there is no risk of water or dust entering
terminals / holes.
GOODWE provides standard manufacture warranty to inverter products, which will be delivered
with the product. We also provide prepaid warranty extension solution to our customer. You can
󽗉nd the details about the terms and solutions from o󽗋cial website: https://en.goodwe.com/
warranty.asp.

04
3 Product Introduction
3.1 Inverter Overview
1. PV Input Terminal 2. DC Switch 3.
WiFi/4G/LAN/GPRS Communication
Module Port or RS485
Communication Cable Port
4.
DRED/CT/Remote Shut
down Communication
Cable Port
5. AC Output
Terminal 6. LED
7. LCD 8. Button 9. PE Terminal
10. Mounting Plate 11. Heat Sink
Item Name Description
1 PV Input Terminal For PV string connection
2 DC Switch
During normal operation, it can shut down the
inverter after it is disconnected from the grid by
the AC breaker.
3 Communication Module Port For 4G/LAN/GPRS communication; RS485
communication
4 Communication Cable Port For CT/DRED/RSD Communication
5 AC Output Terminal For AC cable connection
6 LED Display the state of the inverter
7LCD Operation data viewing and parameter
con󽗉guration.
8 Button For con󽗉guration and viewing parameters.
9 Ground Terminal Connect the invter to the ground and avoid
electric hazard.
10 Mouting Plate Hang the inverter on the wall.
11 Heat Sink For heat dissipation.

05
3.2 Package
The units have been thoroughly tested and strictly inspected before delivery. Damage may still
occur during shipping.
1. Check the package for any visible damage upon receiving.
2. Check the inner contents for damage after unpacking.
3. Check the package list below.
Note: Number of expansion bolts, screws, and terminals are various depending on the
di󽗈erent inverters. The actual accessories may di󽗈er.
Communication module types: WiFi/4G/LAN/GPRS. The actual module delivered depends
on the communication method of the selected inverter.
2PIN terminal is used to connect CT communication cable.
1. In order to achieve optimal performance, the ambient temperature should be lower than 45℃.
2. For easy maintenance, we suggest to install the inverter at eye level.
3. Inverters should not be installed near 󽗊ammable and explosive items. Strong electro-magnetic
charges should be kept away from installation site.
4. Product labels and warning symbols should be put at a place that is easy to read by the users.
5. Shelter the inverter from direct sunlight, rain and snow.
Inverter*1
AC Connector*1 Spare Screws
Keep away
from sunlight Keep it clear
of snow Sun Rain Accmulated
snow
Keep dry
2PIN Terminal
Documentation
*1
Communication
Module*1
PE OT
Terminal*1
Mounting
Bracket*1 Expansion
Bolts
Postive DC
Terminal*2
Negative DC
Terminal*2
4 Installation
4.1 Mounting Instructions

06
4.2 Equipment Installation
4.2.1 Select installation location
4.2.2 Mounting procedure
Please take the following points into consideration when you are selecting a proper location to
install the inverter.
• Please choose appropriate mounting methods and installation location in terms of weight and
dimensions of the inverter.
• The place must be well ventilated and sheltered from direct sunlight.
• Install the inverter vertically or with a backward tilt within 15 degrees. No lateral tilt is allowed.
The area of the connectors should point downwards.
For convenient dismantling and heat dissipation, the clearance around the inverter must follow
the below diagram.
The installation position shall not block access to the disconnection means.
1. Use the mounting bracket as a template and drill holes (diameter 10mm, depth 80 mm) on the
wall.
2. Fix the mounting bracket on the wall with the expansion bolts in the accessories bag.
3. Hold the inverter by the side groove.
4. Mount the inverter on the wall-mount bracket.
Upward---------------300mm
Downward-----------500mm
Front-------------------200mm
Both sides------------200mm
Max
15°
300mm
200mm
200mm
300mm
500mm

07
The lock is not included in
the package. Customers
need to prepare it by
themselves if need.
195mm
Wall-Mounting Bracket
Expansion Pipe
Self-tapping Screws
195mm
130mm
4.2 Equipment Installation
4.2.1 Select installation location
1. Check the grid voltage and frequency to see whether it complies with the required voltage and
frequency.
2. Add the breaker or fuse to AC side, the speci󽗉cation should be at least 1.25 times rated AC
output current.
3. The PE cable of the inverter should be connected to the ground. Make sure the impedance of
the neutral wire and the gound cable is less than 10 ohm.
4. Disconnect the breaker or fuse between the inverter and the utility.
5. Connect the inverter to the grid as follows:
There are 3 AC connector brands for inverter, VACONN, WIELAND and Exceedconn.
6. About construction of the AC cable, if the cord slip from its anchorage and place a strain on
conductors, the protective earthing conductor should be the last one to take the strain. So the PE
cable should be longer than L and N.
VACONN Series WIELAND Series Exceedconn

08
Note:
1. Neutral conductor shall be blue, line conductor shall be black or brown (preferred),
protective earth cable shall be yellow-green.
2. Fix (moment: 0.6N.m) the connector of AC cable to the corresponding terminals.
AC cable illustration :
7-9mm
unlock
lock
When unplugging the AC terminals, press
the button and hold it to unlock it.
Make sure the terminal is rotated to the lock position before the inverter started.
Torque 0.7~0.9N.m
Grade Description Value
A O.D 10~12mm
B Section area of
conduction material
2.5~4mm²
C Length of Bare wire 10mm around

09
4.3.2 AC Circuit Breaker And Residual Current Protection Device
4.3.3 Earth Terminal Connection
In order to ensure that the inverter can be safely and reliably disconnect from the power grid,
please install an independent bipolar circuit breaker to protect the inverter.
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 build-in RCMU. Type B must be used to avoid tripping.
The inverter is equipped with earth terminal according to the requirement of EN 50178.
All non-current carrying exposed metal parts of the equipment and other enclosures in the PV
power system must be grounded.
Please follow the steps below to connect PE cable to ground.
Step 1
Strip the wire insulation layer to a suitable length using a wire stripper.
Step 2
Insert the stripped wire into the terminal and compress it tightly using crimping pliers.
Note: Multiple inverters are not allowed to share one circuit breaker.
The integrated leakage current detection device of the inverter can detect external leakage
current in real time. When the detected current exceeds the limit value, the inverter will
immediately disconnect from the grid. If the leakage current protection device is installed
externally, the action current should be 300mA or higher.
Inverter model Recommended circuit breaker speci󽗉cations
GW3000D-NS/GW3600D-NS/GW3000T-DS/GW3600T-DS 25A
GW4200D-NS/GW5000D-NS/GW4200T-DS/GW5000T-DS/GW5KBD-NS 32A
GW6000D-NS/GW6000T-DS/GW6KBD-NS 40A
L2 = L1 + (1~2mm)

10
4.3.4 DC side Connection
1. Before connecting the PV strings, please ensure the plug connectors are connected to 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 GoodWe are permitted.
4. Do not connect the positive and negative pole to the PE cable (Ground cable). Otherwise, the
unit may be damaged.
5. Do not connect the positive or negative pole of PV string to PE cable. Otherwise it will cause
damage to inverter.
6. Positive wire shall be red, negative wire shall be black.
7. The minimum insulation resistance of the PV panels for DST series to ground must exceed
19.3K ohms (R = 58-/30 mA) . There is a risk of shock hazard if the requirement of minimum
resistance is not met.
There are four types of DC connectors, DEVALAN, MC4, AMPHENDL H4 and QC4.10 series.
Step 3
Fix the ground cable on the equipment.
In order to improve the corrosion resistance of the terminal, it is recommended to
apply silica gel on the earth terminal for corrosion protection after the ground cable
assembling is completed.
NO. Name Explanation
A Cold-pressed terminal
B Screw M5*14
C Yellow and green line 4mm2 / 10AWG
DEVALAN SERIES MC4 SERIES

11
AMPHENOL SERIES QC4.10 SERIES
Note: The actual DC connector used is as shown in the accessory box.
DC cable speci󽗉cation:
Note: The DC Cable should be dedicated PV cable.
The installation method of DC connector.
Positive connector
Negative connector
Inverter side
Please use special tools to do crimping.
Do not crimp wire into
the limit buckle.
DEVALAN & AMPHENOLMC4 & QC4.10
NO. Name Explanation
A Cold-pressed terminal
B Screw M5*14
C Yellow and green line 4mm2 / 10AWG

12
4.4 Communication Connection
4.4.1 USB Connection
4.4.2 RS485 Communication
USB interface is used for after-sales service team to repair inverter only. Not allowed for any
other purposes.
This function is only applied to inverters with RS485.
The RS485 interface is used to connect EzLogger Pro and the maximum total length of all
connecting cables should not exceed 800m.
Communication cables must be separated from other power cables to prevent interference to
the communication. RS485 connection is shown as below.
Step 1: Unscrew this plate from inverter.
Step 2: Insert the USB data cable.
Inverter Inverter Inverter
EzLogger Pro
Internet
Router
PC
RS485 RS485 RS485

13
Step 1: Unscrew this plate from inverter.
Step 2:
Thread the cable through the plate, and
connect the RS485 cable on the 6-pin
terminal.
16AWG-26AWG cables are recommended.
Step 3: Connect the terminal to the right position of the inverter and screw the plate.
Please follow the steps below to complete RS485 communication connection.
Connect the inverter to the Ezlogger Pro using communication cables of RS485. Connect the
Ezlogger Pro to the interchanger or the router using UTP (Unshielded Twisted Pair).
The Wi-Fi Communication function is only applied for WIFi Module, for detailed con󽗉guration
instruction please refer to "Wi-Fi Con󽗉guration Instruction" in the accessory box.
6.5mm
Lock Nut Screw Cap
Cable
RS485
communication board
Single hole
seal ring
The
Insulator
25mm
No. Function
1 RS485+
2 RS485-
3 Reserved
4 Reserved
5 RS485+
6 RS485-
4.4.3 Wi-Fi Communication

14
Step 1: Unscrew this plate.
After con󽗉guration, please create PV station using the monitoring portal website.
white & Black Wire
CT
Inverter
Black
Wire
Connect the Power Limiting device CT shown below.
4.4.4 Export Power Limit Connection Diagram
L
N
Switch Board
Router
4.4.5 DRED / Remote Shutdown / CT (Power Limit Device) Connection
DRED (Demand response enabling device) is only for Australian and New Zealand
installations, in compliance with Australian and New Zealand safety requirements. And DRED
is not provided by the manufacturer.
Remote shutdown is only for Europe installations, in compliance with European safety
requirements. And Remote shutdown device is not provided by the manufacturer.
Please follow the steps below to complete the connection.

15
Step 2-1 For DRED:
Step 2-2 For remote shutdown:
Step 2-3 For CT:
Step 3:
Thread the cable through the connector and
connect to the terminal.
Thread the cable through the connector and
connect to the terminal.
Thread the cable through the connector and
connect to the terminal.
Connect the terminal to the right position of the inverter.
Note:
Connect the CT using two cables. Connect CT+ to the CT+ port of the inverter, and CT- to the CT- port of
the inverter. The color of the CT+ cable can be white, black and white, or red. The color of the CT- cable is
black. Connect the CT cable properly, otherwise, the CT cannot work.
No. Function
1 COM/DRM0
2 REFGEN
3 DRM4/8
4 DRM3/7
5 DRM2/6
6 DRM1/5
No. Function
2 REFGEN
3 DRM4/8
No. Function
1CT-
2CT+
Lock
6.5mm
6.5mm
6.5mm
25mm
25mm
25mm
Nut Screw Cap
Cable
RS485
communication board
Single hole
seal ring
The
Insulator

16
Note:
1. Compatible DRED commands are DRM0, DRM5, DRM6, DRM7, DRM8.
2. Please set up power limit function at local setting page once all connection steps are done.
3. The CT is directional. Please make sure the limit buckle is connected to the output live wire (L)
of the inverter.
4. If the CT is not well connected, "CT disconnected" will be displayed on the LCD. If the CT is
reversely connected, "CT Reverse" will be displayed when connected to the grid.
In compliance with the section 13.9 of IEC62109-2, the DST series inverter is equipped with an
earth fault alarm. When earth fault occurs, the fault indicator on the front LED screen will light up.
For inverters with Wi-Fi communication, the system will send an email with the fault noti󽗉cation
to the customer. For inverters without Wi-Fi, the buzzer of the inverter will keep ringing for
one minute and ring again after half an hour until the problem is solved. (This function is only
available in Australia and New Zealand).
SEMS Portal is an online monitoring system. After completing the installation
of communication connection, you can visit www.semsportal.com or
download the App by scanning the QR code to monitor your PV plant and
device.
Please contact the after-sales for more operations of SEMS Protal.
AFCI is avaliable in models support arc detection only. For more details, please refer to user
manual of SolarGo APP.
4.4.6 Earth Fault Alarm
4.4.7 SEMS Portal
4.4.8 AFCI

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5 System Operation
5.1 LCD Panel And LED
5.1 User Interface And System Con󽗉guration
5.1.1 Indicator Lights
5.2.1 Operation Method
Indicator lights in Yellow/Green/Red correspondently refer to:
Indicator Status Explanation
ON = WiFi connected/active
BLINK 1 = WiFi system resetting
BLINK 2 = Not connect to router
BLINK 3 = WiFi server problem
BLINK = RS485 connected
OFF = WiFi not active
On = Inverter is feeding power
OFF = Inverter is not feeding power at the moment
On = Fault occurred
OFF = No fault
Power
Operating
Alarming
There are two modes of button operation: Short press the button and long press the button.
If no action is taken, the backlight of the LCD will be o󽗈 and the LCD will automatically revert to
the 󽗉rst item of the main menu. Also, any modi󽗉cations made to the data will be stored in the
internal memory.

18
5.2.2 Set Safety Country
5.2.3 LCD
5.2.4 Display Area
5.2.5 Use Of The LCD
A schematic of the LCD is shown as below:
The display area is divided as follows:
After powering on for the 󽗉rst time, the inverter prompts Select Country/Region, please short
press until "GW3000D-NS Pac=****.0W" is displayed, and then set the safety region. The inverter
cannot be connected to the grid before the safety-related area is set.
If display shows "GW3000D-NS Pac=****.0W", then long press the button to enter the second level
menu. Short press to browse the countries available. Please wait after choosing the suitable
country's safety setting, the display will show "setting..." and skip to "Set OK" or "Set Fail".
NOTE: For the Australian market, to comply with AS/NZS 4777.2:2020, please select from Australia
Region A/B/C, please contact your local electricity grid operator on which Region to select. After
the safety area setting is completed, some parameters in the inverter system will take e󽗈ect
according to the corresponding safety regulations, such as PU curve, QU curve, trip protection,
etc. If you need to change the con󽗉guration parameters, please refer to the SolarGo APP user
manual.
Line 1 --- Working status information
Line 2--- Real-time power generated by the inverter.
• This area displays the status information. "Waiting" indicates the inverter is standing by for
power generation; "Checking **S" (checking time is based on the safety country, and varies
from country to country) indicates the equipment is self-checking, counting down and
preparing for power generation. "Normal" indicates the inverter is generating power. If any
condition of the system is abnormal, the screen will display an error message.
• Through button operation, the screen can display di󽗈erent information such as operation
parameters and power generation status. There are two levels of menus, and the 󽗊ow chart of
the menus is shown below.
The LCD display allows con󽗉guring the basic parameters. All the language, time and country
settings can be con󽗉gured by pressing the button. There are two levels of menu shown on the LCD
screen. Short or long press the button to switch the menus. Items without sub menu are locked.
For these items,long press the button for two seconds, the LCD will display "Lock", followed by
data relating to the main menu item. The locked menu can only be unlocked when switch system
mode, fault occurs or operate the button.
Normal
Pac=XXXX.XW
Line ①
Line ②