Goodwe MS Series User manual

User Manual
V1.0-2022-08-20
Grid-Tied PV Inverter
MS Series
5.0-11.4kW G3(US)

I
Copyright Statement
User Manual V1.0-2022-08-20
The information in this user manual is subject to change due to product updates or other
reasons. This guide cannot replace the product labels or the safety precautions in the user
manual unless otherwise specied. All descriptions here are for guidance only.
and other GOODWE trademarks are trademarks of GoodWe Technologies
Co.,Ltd. All other trademarks or registered trademarks mentioned in this manual are owned by
GoodWe Technologies Co.,Ltd.
NOTICE
No part of this manual can be reproduced or transmitted to the public platform in any form or
by any means without the prior written authorization of GoodWe Technologies Co., Ltd.
Copyright ©GoodWe Technologies Co., Ltd., 2022. All rights reserved
Trademarks

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User Manual V1.0-2022-08-20
CONTENT
CONTENT
1 About This Manual ..........................................................1
1.1 Applicable Model ....................................................................................... 1
1.2 Target Audience ......................................................................................... 1
1.3 Symbol De󽗉nition ..................................................................................... 2
1.4 Updates ...................................................................................................... 2
2 IMPORTANT SAFETY INSTRUCTIONS ................................3
2.1 General Safety ........................................................................................... 3
2.2 DC Side: ...................................................................................................... 3
2.3 AC Side ....................................................................................................... 4
2.4 Inverter Installation ................................................................................... 4
2.5 Personal Requirements ............................................................................. 5
3 Product Introduction ......................................................6
3.1 Application Scenarios ............................................................................... 6
3.2 Circuit Diagram .......................................................................................... 6
3.3 Supported Grid Types ...............................................................................7
3.4 Inverter Operation Mode ...........................................................................8
3.5 Functionality ............................................................................................. 9
3.6 Appearance ................................................................................................ 9
3.6.1 Parts ....................................................................................................................9
3.6.2 Dimensions .......................................................................................................10
3.6.3 Indicators ..........................................................................................................10
3.6.4 Nameplate ........................................................................................................11
4 Check and Storage ........................................................12
4.1 Check Before Receiving ........................................................................... 12
4.2 Deliverables .............................................................................................12
4.3 Storage ..................................................................................................... 13
5 Installation ...................................................................14
5.1 Installation Requirements ...................................................................... 14
5.2 Inverter Installation ................................................................................. 17
5.2.1 Moving the Inverter ..........................................................................................17

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评评评评
User Manual V1.0-2022-08-20 CONTENT
6 Electrical Connection ....................................................18
6.1 Safety Precaution .................................................................................... 18
6.2 Preparations before Installation ............................................................. 19
6.2.1 Terminal Introduction ......................................................................................19
6.2.1 Cable Speci󽗉cation ..........................................................................................19
6.3 Opening the wiring cover ....................................................................... 21
6.3 Connecting the PV Input Cable ............................................................... 21
6.4 Connecting the AC Output Cable ............................................................22
6.5 Communication ....................................................................................... 25
6.5.1 Communication Network Introduction ...........................................................25
6.5.2 Connecting the Communication Cable .........................................................27
6.5.3 Installing the WiFi Module (optional) ..............................................................28
6.5.4 Connecting the antenna(optional) ..................................................................28
7 Equipment Commissioning ........................................... 29
7.1 Check Before Power ON .......................................................................... 29
7.2 Power On .................................................................................................29
8 System Commissioning .................................................30
8.1 Indicators and Buttons ............................................................................30
8.3 Upgrading the Firmware Via USB Flash Disk.......................................... 31
8.4 Setting Inverter Parameters via SolarGo App ........................................31
8.4 Monitoring via SEMS Portal .................................................................... 31
9 Maintenance ................................................................32
9.1 Power O󽗈 the Inverter ............................................................................. 32
9.2 Removing the Inverter ............................................................................ 32
9.3 Disposing of the Inverter ......................................................................... 32
9.4 Troubleshooting ...................................................................................... 32
9.5 Routine Maintenance .............................................................................. 40
10 Technical Parameters .................................................. 41
11 Appendix ....................................................................46
11.1 Precision of inverter parameters ......................................................... 46

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User Manual V1.0-2022-08-20 01 Disclaimer
This manual applies to the listed inverters below (MS G3 for short):
Model Nominal Output Power Nominal Output Voltage
GW5000-MS-US30
5000W 240V
4333W 208V
GW6000-MS-US30
6000W 240V
5200W 208V
GW7600-MS-US30
7600W 240V
6580W 208V
GW9600-MS-US30
9600W 240V
8320W 208V
GW11K4-MS-US30
11400W 240V
9880W 208V
1 About This Manual
This manual describes the product information, installation, electrical connection, commissioning,
troubleshooting, and maintenance. Read through this manual before installing and operating the
product. All the installers and users have to be familiar with the product features, functions, and
safety precautions. This manual is subject to update without notice. For more product details and
latest documents, visit https://en.goodwe.com.
1.1 Applicable Model
1.2 Target Audience
This manual applies to trained and knowledgeable technical professionals. The technical
personnel has to be familiar with the product, local standards, and electric systems.

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User Manual V1.0-2022-08-20
01 Disclaimer
1.3 Symbol Denition
1.4 Updates
The latest document contains all the updates made in earlier issues.
V1.0 2022-08-20
First Issue
Dierent levels of warning messages in this manual are dened as follows:
DANGER
Indicates a high-level hazard that, if not avoided, will result in death or serious injury.
WARNING
Indicates a medium-level hazard that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.
NOTICE
Highlight and supplement the texts. Or some skills and methods to solve product-related
problems to save time.

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User Manual V1.0-2022-08-20 02 Safety Precaution
SAVE THESE INSTRUCTIONS
Please strictly follow these safety instructions in the user manual during the operation.
2 IMPORTANT SAFETY INSTRUCTIONS
NOTICE
The inverters are designed and tested strictly complies with related safety rules. Read and
follow all the safety instructions and cautions before any operations. Improper operation might
cause personal injury or property damage as the inverters are electrical equipment.
2.1 General Safety
NOTICE
• The information in this user manual is subject to change due to product updates or other
reasons. This guide cannot replace the product labels or the safety precautions in the user
manual unless otherwise specied. All descriptions here are for guidance only.
• Before installations, read through the quick installation guide. For additional information,
please see the user manual.
• All installations should be performed by trained and knowledgeable technicians who are
familiar with local standards and safety regulations.
• Use insulating tools and wear personal protective equipment when operating the
equipment to ensure personal safety. Wear anti-static gloves, cloths, and wrist strips when
touching electron devices to protect the inverter from damage.
• Strictly follow the installation, operation, and conguration instructions in this manual.
The manufacturer shall not be liable for equipment damage or personal injury if you do
not follow the instructions. For more warranty details, please visit https://en.goodwe.com/
warranty.
DANGER
Connect the DC cables using the delivered PV connectors. The manufacturer shall not be liable
for the equipment damage if other connectors or terminals are used.
WARNING
• Ensure the component frames and the bracket system are securely grounded.
• Ensure the DC cables are connected tightly, securely and correctly.
• Measure the DC cable using the multimeter to avoid reverse polarity connection. Also, the
voltage should be under the permissible range.
• Do not connect the same PV to multiple inverters. Otherwise, the inverters may be
damaged.
• The PV modules used with the inverter must have an IEC61730 class A rating.
2.2 DC Side:

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User Manual V1.0-2022-08-20
02 Safety Precaution
DANGER High voltage hazard.
Disconnect all incoming power
and turn o the product before
working on it.
Delayed discharge. Wait
5 minutes after power o
until the components are
completely discharged.
Read through the user manual
before working on this device.
Potential risks exist. Wear
proper PPE before any
operations.
High-temperature hazard. Do
not touch the product under
operation to avoid being burnt.
Grounding point.
SGS Marking for the United
States of America and Canada.
Do not dispose of the inverter
as household waste. Discard
the product in compliance with
local laws and regulations,
or send it back to the
manufacturer.
Support Type 1 DC Arc
detection on PV side.
- -
PV
AFCI
Type 1
WARNING
• The voltage and frequency at the connection point meet the inverter grid connection
requirements
• Additional protective devices like circuit breakers or fuses are recommended on the AC
side. Specication of the protective device should be at least 1.25 times the rated AC output
rated current.
• Make sure that all the groundings are tightly connected. When there are multiple
• inverters,make sure that all the grounding points on the enclosures are equipotential
• bonding.You are recommended to use copper cables as AC output cables. Contact the
manufacturer if you want to use other cables.
2.3 AC Side
2.4 Inverter Installation
DANGER
• Do not apply mechanical load to the terminals, otherwise the terminals can be damaged.
• All labels and warning marks should be visible after the installation. Do not scrawl,
damage, or cover any label on the device.
• Inverters should not be installed in multiple phase combination.
• Warning labels on the inverter are as follows.

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User Manual V1.0-2022-08-20 02 Safety Precaution
2.5 Personal Requirements
NOTICE
• Personnel who install or maintain the equipment must be strictly trained, learn about
safety precautions and correct operations.
• Only qualied professionals or trained personnel are allowed to install, operate, maintain,
and replace the equipment or parts.

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User Manual V1.0-2022-08-20
03 Product Introduction
PV3 only for GW9600-MS-US30, GW11K4-MS-US30.
House Meter
Meter
3 Product Introduction
3.1 Application Scenarios
3.2 Circuit Diagram
Utility
Grid
PV String
Inverter
Circuit Breaker
(optional)
Circuit
Breaker
Circuit
Breaker
Load
The MS G3 inverter is a single-phase PV string grid-tied inverter, which converts the DC power
generated by the PV module into AC power for loads or the grid. The intended use of the
inverter is as follows:
Main Panel

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User Manual V1.0-2022-08-20 03 Product Introduction
240V/120V Split Phase AC Grid 240V/120V Stinger AC Grid 240V Delta AC Grid
208V/120V WYE AC Grid 208V Delta AC Grid
3.3 Supported Grid Types
The inverter supports 240V/120V Split Phase AC Grid, 240V/120V Stinger AC Grid, 240V Delta AC
Grid, 208V/120V WYE AC Grid and 208V Delta AC Grid.

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User Manual V1.0-2022-08-20
03 Product Introduction
Waiting mode
Self-check mode
Burning Mode
Faulty mode
Grid-Tied mode
3.4 Inverter Operation Mode
No. Parts Description
1 Waiting
mode
Waiting stage after the inverter is powered on.
• When the conditions are met, it enters the self-check mode.
• If there is a fault, the inverter enters the fault mode.
• If a burning request is received, the inverter enters the burning mode.
2 Self-check
mode
Before the inverter starts up, it continuously performs self-check,
initialization, etc.
• When the conditions are met, it enters the grid-tied mode, and the
inverter starts on grid connection.
• If a burning request is received, the inverter enters the burning mode.
• If the self-check is not passed, it enters the fault mode.
3 Grid-Tied
mode
The inverter is grid-tied successfully, making energy conversion and
controlling the power in PV systems.
• If a fault is detected, it enters the fault mode.
• If a burning request is received, the inverter enters the burning mode.
4 Faulty
mode
If a fault is detected, the inverter enters the fault mode. When the fault is
cleared, it enters the wait mode.
5 Burning
Mode
When the inverter is upgrading the program, it enters the burning mode.
• When the upgrading is nished, it enters the waiting mode.

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User Manual V1.0-2022-08-20 03 Product Introduction
Ezlink
3.6 Appearance
3.6.1 Parts
3.5 Functionality
The inverter has a built-in Ezlink module supporting IEEE2030.5 communication protocol.
It supports setting the inverter via Bluetooth in a short distance; connecting to the server via 4G,
WiFi or LAN to monitor the inverter and power plant operation, etc.
• Bluetooth: meets Bluetooth 5.1 standard.
• 4G (optional): supports AT&T and T-Mobile mainstream service provider.
• WiFi: supports 2.4G frequency band. Set the router to 2.4G or 2.4G/5G coexistence mode
(User can set 40 bytes for router wireless signal name maximumly.)
• LAN (optional): supports connecting to the router via LAN communication and then
connecting to the server.
No. Parts Description
1 DC Switch Start or stop DC input.
2 Ezlink Reset Button Optical, able to reset the Ezlink.
3 Cable Hole Inverter cable inlet and outlet.
4 COM Module Port Optical, able to be connected with WiFi module.
5 Port for WiFi/BT antenna Able to be connected with WiFi or BT antenna.
6 Port for 4G antenna Optical, able to be connected with 4G antenna.
7 Indicator Indicates working state of the inverter.
Back view of MS G3 inverter

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User Manual V1.0-2022-08-20
03 Product Introduction
3.6.2 Dimensions
3.6.3 Indicators
Indicator Status Description
ON = Equipment Power On
OFF = Equipment Power O
ON = The Inverter Is Feeding Power
OFF = The inverter is not feeding power
Single slow ash = Self check before connecting to the grid
Single ash = Connecting to the grid
ON = Wireless is connected/active
Blink 1 = Wireless system is resetting
Blink 2 = Wireless router not connected
Blink 4 = Wireless server problem
Blink = RS485 is connected
OFF = Wireless is not active
ON = A fault has occurred
OFF = No fault
No. Parts Description
8 Mounting Plate Used to install the inverter.
9 Heat sink Used to cool the inverter.
10 Inverter xing part Used to x the inverter.

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User Manual V1.0-2022-08-20 03 Product Introduction
3.6.4 Nameplate
The nameplate is for reference only.
GW trademark, product type, and
product model
Technical parameters
Safety symbols and certication
marks
Contact information and serial
number

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User Manual V1.0-2022-08-20
04 Check and Storage
Documents x 1
Expansion boltx 6
Grounding
screw x 1 WiFi module x N
2PIN
communication
terminal x 2
4PIN
communication
terminal x 2
4 Check and Storage
4.1 Check Before Receiving
4.2 Deliverables
Check the following items before receiving the product.
1. Check the outer packing box for damage, such as holes, cracks, deformation, and other
signs of equipment damage. Do not unpack the package and contact the supplier as soon as
possible if any damage is found.
2. Check the inverter model. If the inverter model is not what you requested, do not unpack the
product and contact the supplier.
3. Check the deliverables for correct model, complete contents, and intact appearance. Contact
the supplier as soon as possible if any damage is found.
Inverter x 1 Mounting plate x 1
WARNING
Connect the DC cables with the delivered terminals. The manufacturer shall not be liable for
the damage if other terminals are used.
NOTICE
The antenna and the WiFi module are shipped according to the communication mode
supported by the inverter.
Frame post x1
Waterproof plug
remover Tool x1
Antenna xN Screwdriver
x1
Screw for the
bottom cover
x 2
Wrench x1 PV DC
Terminal x8
AC Terminal
(5AWG) x4
AC Terminal
(8AWG) x4

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User Manual V1.0-2022-08-20 04 Check and Storage
4.3 Storage
If the equipment is not to be installed or used immediately, please ensure that the storage
environment meets the following requirements:
1. Do not unpack the outer package or throw the desiccant away.
2. Store the equipment in a clean place. Make sure the temperature and humidity are
appropriate and no condensation.
3. The height and direction of the stacking inverters should follow the instructions on the
packing box.
4. The inverters must be stacked with caution to prevent them from falling.
5. If the inverter has been long term stored, it should be checked by professionals before being
put into use.

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05 Installation User Manual V1.0-2022-08-20
5 Installation
5.1 Installation Requirements
Installation Environment Requirements
Children No Touch
1. Do not install the equipment in a place near ammable, explosive, or corrosive materials.
2. Install the equipment on a surface that is solid enough to bear the inverter weight.
3. Install the equipment in a well-ventilated place to ensure good dissipation. Also, the
installation space should be large enough for operations.
4. The equipment with a high ingress protection rating can be installed indoors or outdoors.
The temperature and humidity at the installation site should be within the appropriate range.
5. Install the equipment in a sheltered place to avoid direct sunlight, rain, and snow. Build a
sunshade if it is needed.
6. Install the equipment in a well-ventilated place to ensure good dissipation. Also, the
installation space should be large enough for operations.
7. Do not install the equipment in a place that is easy to touch, especially within children’s
reach. High temperature exists when the equipment is working. Do not touch the surface to
avoid burning.
8. Install the equipment at a height that is convenient for operation and maintenance, electrical
connections, and checking indicators and labels.
9. The altitude to install the inverter shall be lower than the maximum working altitude
3000m(9842ft).
10.The inverter is easy to be corroded when installed in salt areas. Please consult the inverter
manufacturer before installing it outdoors in salt areas. A salt area refers to the region within
1000m(3281ft) oshore or aected by the sea breeze. The area prone to the sea breeze
varies depending on weather conditions (e.g. typhoon, monsoon) or terrain (such as dams
and hills).
11.Install the inverter away from high magnetic eld to avoid electromagnetic interference.If
there is any radio or wireless communication equipment below 30MHz near the inverter, you
have to:
• Install the inverter at least 30m(98.43ft) far away from the wireless equipment.
• Add a low pass EMI lter or a multi winding ferrite core to the DC input cable or AC output
cable of the inverter.

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05 Installation
User Manual V1.0-2022-08-20
Installation Angle Requirements
• Install the inverter vertically or at a maximum back tilt of 15 degrees.
• Do not install the inverter upside down, forward tilt, back forward tilt, or horizontally.
Mounting Support Requirements
• The mounting support shall be nonammable and reproof.
• Make sure that the support surface is solid enough to bear the product weight load.
• Do not install the product on the support with poor sound insulation to avoid the noise
generated by the working product, which may annoy the residents nearby.

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05 Installation User Manual V1.0-2022-08-20
The following tools are recommended when installing the equipment. Use other auxiliary tools
on site if necessary.
Installation Tool Requirements
Torque wrench
Cable tie
Multimeter
Marker Level Heat shrink
tube
Rubber
hammer
Goggles Safety shoes Safety gloves Dust mask
Diagonal pliers Wire stripper Hammer drill Heat gun
DC wiring
wrench
Vacuum
cleaner