GOODWE GW1600-MIS Micro Inverter User Manual

GOODWE GW1600-MIS Micro Inverter

Specifications

• Product: Micro Inverter
• Version: V1.1-2024-01-05
• Manufacturer: GoodWe Technologies Co.,Ltd

Safety Precautions

Before using the micro inverter, it is essential to read and understand all safety precautions mentioned in the user manual. This ensures safe operation and prevents any accidents.

Product Overview

Product Introduction

The micro inverter is designed to convert direct current (DC) generated by solar panels into alternating current (AC) for use in residential or commercial settings. It is compact and efficient, providing reliable power conversion.

Check and Storage

Before installation, ensure to check the micro inverter for any physical damage or defects. Store the inverter in a cool, dry place away from direct sunlight to prevent any potential damage.

Installation

Follow the installation requirements outlined in the manual carefully. Install the inverter securely in a location with proper ventilation to prevent overheating. Make sure to follow the steps for moving and installing the inverter as described.

Electrical Connection

Ensure all electrical connections are made following localelectrical codes and regulations. Properly connect the DC input from the solar panels and AC output to the electrical system m of your building.

Equipment Commissioning

Prior to powering on the inverter, perform a thorough check to ensure all connections are secure and correct. Follow the steps for powering on the inverter as detailed in the manual.

System Commissioning

After powering on the inverter, monitor the indicators to ensureproper functioning. Use the provided app or SEMS Portal for setting parameters and monitoring the performance of the inverter.

Supported Grid Types

FAQs

Q: Can I install the micro inverter myself?
A: It is recommended to have a certified electrician install the micro inverter to ensure proper installation and adherence to safety standards.

Q: What should I do if I encounter issues with the inverter?
A: Refer to the troubleshooting section of the user manual for common issues and solutions. If problems persist, contact GoodWe Technologies Co.,Ltd for technical support.

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/.

Features

1.1 Applicable Model

This manual applies to the listed inverters below (MIS for short):

Model GW1600-MIS GW1800-MIS GW2000-MIS

Nominal Output Power 1600W 1800W 2000W

Nominal Output Voltage 220/230/240

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.

1.3 Symbol Definition
Different levels of warning messages in this manual are defined 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 Highlights key information and supplements the texts. Or some skills and methods to solve product-related problems to save time.

WARNING
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 manual cannot replace the safety instructions or labels on the equipment unless otherwise specified. All descriptions here are for guidance only.
· Before installations, read through the manual for product information and installation precautions.
· All operations 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 configuration 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.

2.2 PV String Safety

DANGER
When connecting the PV input cable, make sure that the PV connector model matches the PV connector model on the inverter side. The manufacturer shall not be liable for the equipment damage if other connectors are used.
WARNING
· Ensure the component frames and the bracket system are securely grounded. · Ensure that the positive or negative poles of PV module do not short-circuit to the ground.
Otherwise, severe damage might happen, which is beyond the manufacturer’s liability. · Ensure the DC cables are connected tightly, securely and correctly. · Ensure that the voltage of the PV module is within the permissible range of the inverter. · Connect one PV module to each input of the inverter. Do not connect the battery or other
power source to the inverter input.

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02 Safety Precaution

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2.3 AC Side

WARNING
· The voltage and frequency at the connection point meet the on-grid requirements. · Additional protective devices like circuit breakers or fuses are recommended on the AC
side. Specification of the protective device should be at least 1.25 times the maximum AC output current. · Make sure that all the grounding cables are tightly connected. When there are multiple inverters, make sure that all the grounding points on the enclosures are equipotential connected.

2.4 Inverter Safety

DANGER
· All labels and warning marks should be visible after the installation. Do not scrawl, damage, or cover any label on the device.
· Unauthorized dismantling or modification may damage the equipment, the damage is not covered under the warranty.
· Do not touch the running equipment to avoid being hurt as its temperature may exceed 60. Do not install the equipment at a place within children’s reach.
· Install the product away from electromagnetic interference. Install the product away from electromagnetic interference. If there is any radio or wireless communication equipment below 30MHz near the equipment, you have to: · Add a low pass EMI filter or a multi winding ferrite core to the DC input cable or AC output cable of the inverter. · Install the inverter at least 30m far away from the wireless equipment.
· Warning labels on the inverter are as follows.

High-temperature hazard. Do not touch the product under operation to avoid being burnt.
Read through the user manual before any operations.
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.
CE mark

Delayed discharge. Wait 5 minutes after power off until the components are completely discharged. Potential risks exist. Wear proper Personal Protective Equipment before any operations. Grounding point
TÜV mark

RCM mark

ANATEL mark

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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 qualified professionals or trained personnel are allowed to install, operate, maintain, and replace the equipment or parts.

2.6 EU Declaration of Conformity
GoodWe Technologies Co., Ltd. hereby declares that the inverter with wireless communication modules sold in the European market meets the requirements of the following directives: · Radio Equipment Directive 2014/53/EU (RED) · Restrictions of Hazardous Substances Directive 2011/65/EU and (EU) 2015/863 (RoHS) · Waste Electrical and Electronic Equipment 2012/19/EU · Registration, Evaluation, Authorization and Restriction of Chemicals (EC) No 1907/2006
(REACH) You can download the EU Declaration of Conformity on https://en.goodwe.com.

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03 Product Introduction

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3 Product Introduction

3.1 Product Overview
The MIS inverter is a micro single-phase grid-tied PV inverter. The inverter converts the DC power generated by the PV module into AC power and feeds it into the utility grid. The intended use of the inverter is as follows:

PV string

Inverter

3.2 Supported Grid Types

Power distribution unit

Utility grid

Inverter

Inverter

Inverter

Inverter

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03 Product Introduction

3.3 Features

Module level monitoring The inverter supports 4 independent Maximum Power Point Tracking(MPPT for short). Each MPPT is connected to one PV module and tracks the maximum power point of each module.

Power derating To satisfying the local laws or regulations and ensuring a safe operation, the inverter will automatically reduce the output power when the operating environment is not ideal. The following are the factors that may occur power derating. Please try to avoid then during operations. · Unfavorable environmental conditions, e.g., direct sunlight, high temperature, etc. · Inverter’s output power percentage has been set. · Over-frequency derating. · Higher input voltage value. · Higher input current value.

Communication Setting the inverter via bluetooth in a short distance; or connecting the inverter to the server via WiFi to monitor the inverter and power plant working status. · Bluetooth: meets Bluetooth 5.0 standard. · WiFi: supports 2.4G frequency band. Set the router to 2.4G or 2.4G/5G mode. · The router wireless signal name supports a maximum input of 32 bytes. · To ensure communication quality, it is recommended to select a router with high wireless gain
or more antennas. Use a wireless repeater or outdoor router if needed. · Check the WiFi signal intensity via SolarGo app. It is recommended to move the router closer
to the inverter or clear the signal blocking objects to enhance the signal intensity when it is less than -60.

WiFi

Router

Server

SEMS Portal app/web

Inverter

Bluetooth

SolarGo app

When multiple inverters are connected, these inverters can form a tree network via WiFi and communicate with the server through the one selected as the communication root node. Specify

one inverter as the communication root node via SolarGo app if the communication is poor. For

more detailed instructions, refer to the SolarGo APP User Manual

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03 Product Introduction

Inverter 1 WiFi
WiFi

WiFi

Router

Bluetooth

Inverter n

Inverter 2

Bluetooth

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Server

SEMS Portal app/web

Bluetooth < 5m The inverter can communicate with the EzLogger 3000R product for functions such as power limit, remote shutdown, etc. For more detailed instructions, refer to the user manual of EzLogger 3000R.
3.4 Circuit Diagram

PV1+ PV1-

EMI Filter

PV2+ PV2-

EMI Filter

PV3+ PV3-

EMI Filter

L EMI Filter
N SPD

PV4+ PV4-

EMI Filter

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3.5 Appearance 3.5.1 Parts
1

2

3

03 Product Introduction 4

5 6

7

No. Parts

1

Antenna

2 Handle

3 Grounding Point

4

AC connector

5 Heat sink 6 LED Indicators 7 PV connector

3.5.2 Dimensions

7 Description Wireless communication; supports WiFi. Moves or hangs the inverter. Connects grouding cables to the grouding points for protection. Connects the AC branch of the inverter to the trunk cable. Used to cool the inverter. Indicates working state of the inverter. Connects the inverter to the PV module.

330.5mm 200mm 157mm

8mm

473±20mm

266.7mm

100mm 8

42.5mm

03 Product Introduction
3.5.3 Indicators
Indicator status

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Descriptions Slow blinking green = Equipment on and in the standby mode. Fast blinking green = equipment starting and in the self-check mode. Steady green = The four PV inputs are available, and the inverter is feeding power to the grid properly. Blinking green and red = Not all PV inputs are available, but the inverter is still feeding power to the grid. The four blinks represent the status of four inputs PV1, PV2, PV3 and PV4 respectively. Red blinks indicating abnormal PV input, green blinks indicating normal PV input. Example: As shown on the left, PV1 is abnormal and PV2, PV3 and PV4 are normally working. Single blinking red = Utility grid loss. Double blinking red = Utility grid fault. Steady red = Equipment fault. Fast blinking green and red = Updating software.

3.5.4 Nameplate

The nameplate is for reference only.

Technical parameters

Product: Micro Inverter

Model: GW****-MIS

PV Input Output

UDCma x: Vd.c. IDC,max: Ad.c. UAC,r : * Va.c. PAC,r : ** W Smax: * VA IAC,max:

UMPP: …Vd.c. ISC PV: Ad.c fAC, r: Hz Sr: **** VA

P.F.: ~…ind,

Toperating: **

Galvanically Isolate d HF Transforme r, IP67 , Protectiv e Clas s I

OV C DCII/ACIII

GW trademark, product type and product model
Safety symbols and certification marks

Contact

information

S/ N

and serial

number

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04 Check and Storage

4 Check and Storage
4.1 Check Before Receiving

· Check the following items before receiving the product. · 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. · Check the inverter model. If the inverter model is not what you requested, do not unpack the product and contact the supplier. · Check the deliverables for correct model, complete contents, and intact appearance. Contact the supplier as soon as possible if any damage is found.
4.2 Deliverables

NOTICE
· Connect the PV cables using the PV connectors in correct model. The manufacturer shall not be liable for the damage if other connectors are used.
· The actual number of accessories may differ. · The optional accessories can be purchased from the manufacturer based on your actual
needs. The accessories will be delivered separately.

Dust cover of the T shape AC connector x2

Uninstall tool of the T shape AC connector x4

Sealing plug of the T shape AC connector x4

Inverter x8

Inverter x1

T shape AC MC4 grounding

connector x1

screw x1 Documents x1

Optional accessory

Adapter bracket x N

DC extension cable x N

AC extension cable x N

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04 Check and Storage

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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

5 Installation
5.1 Installation Requirements
Installation Environment Requirements
1. Do not install the equipment in a place near flammable, 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 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. 6. 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. 7. Install the equipment at a height that is convenient for operation and maintenance, electrical connections, and checking indicators and labels. 8. Install the product away from electromagnetic interference. Install the equipment away from electromagnetic interference. If there are radio stations or wireless communication equipment below 30 MHz near the installation location, install the equipment as follows: · Add a multi- turn winding ferrite core at the DC input line or AC output line of the inverter,
or add a low-pass EMI filter. · Install the inverter at least 30m far away from the wireless equipment.

200mm 10mm

200mm 45mm 200mm
200mm

No touch during operation.

ALT: 2000m

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05 Installation

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IP67
0%~100%RH
Mounting Support Requirements · Install the inverter on the PV racking. · The mounting support shall be nonflammable and fireproof. · Ensure the PV racking is solid enough to bear the inverter weight. · 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.
Installation Angle Requirements · Mounting the inverter tilt with the angle of the PV module securely. · Ensure that the installation angle meets the ventilation and dissipation requirements.

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Installation Tool Requirements The following tools are recommended when installing the equipment. Use other auxiliary tools on site if necessary.

05 Installation

Goggles

Safety shoes

Safety gloves

Dust mask

M8/M4 M8
Torque wrench

Diagonal pliers

Wire stripper

Multimeter

Heat gun

Cable tie

Marker

Level

Heat shrink tube

M8 Socket wrench

Adjustable wrench

Hydraulic pliers Crimping pliers
5.2 Inverter Installation
5.2.1 Moving the Inverter
CAUTION Move the inverter to the site before installation. Follow the instructions below to avoid personal injury or equipment damage. 1. Consider the weight of the equipment before moving it. Assign enough personnel to move
the equipment to avoid personal injury. 2. Wear safety gloves to avoid personal injury. 3. Keep balance to avoid falling down when moving the equipment. 4. Do not bump or hit the antenna. Otherwise, the antenna may be damaged. 5. Instead of lifting the cables directly, it is recommended to hold the handle of the inverter to
prevent potential damage to the cables.
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05 Installation

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5.2.2 Installing the Inverter
NOTICE
· Plan the installation positions of the inverters and PV modules before installation. · Install the inverter on the rail. Prepare aluminum clamps to fix the installation screws when
the holes on the rail are not suitable for installing the inverter. · Wear goggles and a dust mask to prevent the dust from being inhaled or contacting eyes
when drilling holes. · M8 screws should be prepared by customers. Prepare the screws, especially the screw
length, in accordance with the dimension of the rail and thickness of the inverter handle (8mm).
Install the inverter without adapter bracket
The following installation is recommended when the distance between the PV module and rail is larger than 30mm.
PV module 30mm

PV mounting rail Floor

45mm

The following installation is recommended when the distance between the PV module and rail is less than 30mm and the distance between the rail and the floor is sufficient.

PV module

30mm

PV mounting rail 31mm

Floor

45mm

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05 Installation

Step 1 Fix the M8 screws on the rail and reserve a certain length for hanging the inverter. Step 2 Hang the inverter on the screws Step 3: Push the handle gently to secure the inverter. Step 4 Tighten the screws. Ensure that the inverter is fixed properly and securely.

1

2

157mm

10mm

M8 8.5-9.5N·m

3

4

M8

8.5-9.5N·m

Install the inverter with adapter bracket
The following installation is recommended when the distance between the PV module and rail is between 16mm and 30mm, or the inverter cannot install without the adapter bracket.

PV module

16~30mm

PV mounting rail Floor

45mm

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05 Installation

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Step 1 Fix the M8 screws on the rail and adapter bracket respectively. Reserve a certain length for hanging the inverter. Step 2 Hang the inverter on the screws Step 3: Push the handle gently to secure the inverter. Step 4 Tighten the screws. Ensure that the inverter is fixed properly and securely.

1

157mm

2

M8 8.5-9.5N·m
3

10mm
4

M8 8.5-9.5N·m

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06 Electrical Connection

6 Electrical Connection
6.1 Safety Precaution
DANGER
· Disconnect the PV connectors and the AC output switch of the inverter to power off the inverter before any electrical connections. Do not work with power on. Otherwise, an electric shock may occur.
· Perform electrical connections in compliance with local laws and regulations. Including operations, cables, and component specifications.
· If the cable bears too much tension, the connection may be poor. Reserve a certain length of the cable before connecting it to the inverter

NOTICE
· Wear personal protective equipment like safety shoes, safety gloves, and insulating gloves during electrical connections.
· All electrical connections should be performed by qualified professionals. · Cable colors in this document are for reference only. The cable specifications shall meet local
laws and regulations. · The inverter must be licensed by the electricity authority of the country/region in which it is
located before it can be connected to the grid.

6.2 System Network Diagram
NOTICE
· Prepare cables based on installation plan before electrical connections. · After installing the inverters, peel the removable serial number label from the micro inverter
and affix it on a paper to create a installation map. Or add the layout via SEMS Portal web to monitor the working status of the inverters.

Power distribution unit (AC breaker)

PV module 1

PV module 3 PV module n1

PV module n3

Utility Grid

Micro inverter 1

…
Micro inverter n

PV module 2

PV module 4 PV module n2

PV module n4

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06 Electrical Connection
6.3 Connecting the PE Cable

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WARNING
· Both the grounding points on the enclosure and AC cable are recommended. · Make sure that all the grounding points on the enclosures are equipotential connected
when there are multiple inverters. · To improve the corrosion resistance of the terminal, you are recommended to apply silica gel
or paint on the ground terminal after installing the PE cable. · The PE cable should be prepared by the customer. Recommended specifications: 6mm2(AWG). · The M4 grounding OT terminal should be prepared by the customer.

1

L=L1+(1~2)mm

L1

2

3

Copper, 6mm2(AWG)

M4

M4 1.6N·m

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06 Electrical Connection

6.4 Connecting the AC Output Cable

WARNING
Do not connect loads between the inverter and the AC switch directly connected to the inverter.

An AC circuit breaker shall be installed on the AC side to make sure that the inverter can safely disconnect the grid when an exception happens. Select the appropriate AC circuit breaker in compliance with local laws and regulations. Recommended AC circuit breakers:

Inverter model
GW1600-MIS GW1800-MIS GW2000-MIS

AC circuit breaker

For single inverter For double inverters For three inverters For four inverters

10A

25A

32A

32A

16A

25A

32A

40A

16A

25A

32A

40A

Select and Install RCD depending on local laws and regulations. Type A RCDs (Residual Current Monitoring Device) can be connected to the inverter for protection when the DC component of the leakage current exceeds the limit value. For the system with a power below 30kW, it is
recommended to use an RCD with a specification of 300mA. For the system with a power above 30kW, an RCD specification of 10mA per kVA is recommended.
WARNING
· Pay attention to the silkscreens L, N and PE on the AC connector. Connect the wires to the corresponding terminals. The inverter may be damaged if the wires are connected inappropriately.
· Make sure that the whole cable cores are inserted into the AC connector. No part of the cable core can be exposed.
· Make sure that the cables are connected securely. Otherwise, the connector may be too hot to damage the inverter when the inverter is working.
· Seal the AC connector using a sealing plug when it is not to be used. Otherwise, the ingress protection rating will be influenced.
· The AC cable can be purcahsed from the manufacturer or be prepared by the customer. Recommended specifications: 4mm2 or 10AWG or 12AWG.

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06 Electrical Connection

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The number of micro inverters on each AC branch shall not exceed the limit below.

Specification of the T shape AC connector/
Specification of the AC trunk cable

Maximum number per branch GW1600-MIS GW1800-MIS GW2000-MIS

Over Current Protection Device
(OCPD)

12AWG

2

2

2

25A

10AWG

4

3

3

32A

10AWG

–

4

4

40A

Connecting the AC Output Cable Step 1 Prepare the AC cable. Step 2 Disassemble the T shape AC connector. Step 3 Connect the AC cables to the T shape AC connector securely. Step 4 Fix the AC cables using cable ties.

1 10-14mm

10.8-12.9mm

32-38mm

Copper, 12AWGS10AWG

2

3

4

2

1

2

6

4

3

1

5

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06 Electrical Connection

5

4

6

3

2 22
2 22
1 1
1

6

3

4

5

M4 0.7-0.9N·m

A sealing plug is required as below when there is no AC cable connected at the end of the system.

1 1
1

5

4

6

3

2 22
2 22

11 9
10

7 8

M4 0.7-0.9N·m

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06 Electrical Connection

6.5 Connecting the PV Input Cable

DANGER
1. Confirm the following information before connecting the PV module to the inverter. Otherwise, the inverter may be damaged permanently or even cause fire and cause personal and property losses. · Make sure that the max short circuit current and the max input voltage per MPPT are within the permissible range. · Make sure that the positive pole of the PV module connects to the PV+ of the inverter. And the negative pole of the PV module connects to the PV- of the inverter.
2. Do not plug or unplug the connectors when the inverter is running.

WARNING
1. Connect the PV cables using the MC4 PV connectors. The manufacturer shall not be liable for the damage if other connectors are used.
2. The PV modules cannot be grounded. Ensure the minimum isolation resistance of string to the ground meets the minimum isolation resistance requirements before connecting the PV module to the inverter.
3. Connect the connectors of the same PV module to the same pair of PV connectors on the inverter.
4. Recommended PV module specifications: GW1600-MIS: 0W~540W; 1800-MIS: 0W~600W; 2000: 0W~670W.
5. DC extension cable can be purchased from the manufacturer or be prapared by the customer. Recommended specifications: 4-6mm2(12AWG-10AWG).

NOTICE
Seal the PV connectors using waterproof covers when they are not to be used. Otherwise, the ingress protection rating will be influenced.

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06 Electrical Connection

1

7-8mm

: 4-5mm

7-8mm

2
3 2
1

Copper, 4mm2(12AWG)S6mm2(10AWG)
3 Click

3

4

1

2 YQK-70

4

5

1

2 1

2

65V

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4 4
3 2
1
6 Click

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07 Equipment Commissioning

7 Equipment Commissioning

7.1 Check Before Power ON

No.

Check Item

1 The product is firmly installed at a clean place that is well-ventilated and easy-to operate.

2 The PE, PV input, and AC output cables are connected correctly and securely.

3 Cable ties are intact, routed properly and evenly.

4 Unused ports and terminals are sealed.

The voltage and frequency at the connection point meet the inverter on-grid 5
requirements.

7.2 Power On
Step 1 Connect the PV connectors between the inverter and the PV module. Step 2 Turn on the AC breaker between the inverter and the utility grid.

1 PV module PV connector

Inverter

2

Power distribution unit (AC breaker)

Utility grid

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08 System Commissioning
8 System Commissioning

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8.1 Indicators

Indicator status

Description
Slow blinking green = Equipment on and in the standby mode.
Fast blinking green = equipment starting and in the self-check mode.
Steady green = The four PV inputs are available, and the inverter is feeding power to the grid properly.
Blinking green and red = Not all PV inputs are available, but the inverter is still feeding power to the grid. The four blinks represent the status of four inputs PV1, PV2, PV3 and PV4 respectively. Red blinks indicating abnormal PV input, green blinks indicating normal PV input. Example: As shown on the left, PV1 is abnormal and PV2, PV3 and PV4 are normally working.
Single blinking red = Utility grid loss.
Double blinking red = Utility grid fault.
Steady red = Equipment fault.
Fast blinking green and red = Updating software.

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08 System Commissioning

8.2 Setting Inverter Parameters via App

SolarGo app is a mobile application that communicates with the inverter via Bluetooth , WiFi or 4G. Commonly used functions are as follows:
1. Check the operating data, software version, alarms, etc. 2. Set grid parameters, communication parameters, etc. 3. Equipment maintenance. Visit https://en.goodwe.com or scan the QR code to read the user manual.

SolarGo APP

SolarGo APP User Manual

8.3 Monitoring via SEMS Portal
SEMS Portal is a monitoring platform used to communicate with the inverter via WiFi, LAN, 4G, or GPRS. Commonly used functions:
1. Manage the organization or user information; 2. Add and monitor the power plant information; 3. Equipment maintenance.

SEMS Portal APP SEMS Portal APP User Manual

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09 Maintenance
9 Maintenance
9.1 Power Off the Inverter

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DANGER
· Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur.
· Delayed discharge. Wait until the components are discharged after power off.

Step 1 (optional) Send shutdown command to the inverter. Step 2 Turn off the AC switch between the inverter and the utility grid. Step 3 Disconnect the PV connectors between the inverter and the PV module.
9.2 Removing the Inverter
WARNING
· Make sure that the inverter is powered off. · Wear proper PPE before any operations.
Step 1 Disconnect all the cables, including DC cables, AC cables and PE cables. Step 2 Remove the inverter from the PV racking. Step 3 Store the inverter properly. If the inverter needs to be used later, ensure that the storage conditions meet the requirements.

9.3 Disposing of the Inverter
If the inverter cannot work anymore, dispose of it according to the local disposal requirements for electrical equipment waste. The inverter cannot be disposed of together with household waste.

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09 Maintenance

9.4 Troubleshooting

Perform troubleshooting according to the following methods. Contact the after- sales service if these methods do not work. Collect the information below before contacting the after-sales service, so that the problems can be solved quickly. 1. Inverter information like serial number, software version, installation date, fault time, fault
frequency, etc. 2. Installation environment, including weather conditions, whether the PV modules are
sheltered or shadowed, etc. It is recommended to provide some photos and videos to assist in analyzing the problem. 3. Utility grid situation.

No. Fault

Cause

Solutions

1

Utility Loss

1. Utility grid power fails. 2. The AC cable is disconnected, or the AC breaker is off.

1. The alarm is automatically cleared after the grid power supply is restored.
2. Check whether the AC cable is connected and the AC breaker is on.

1. If the problem occurs occasionally, the

utility grid may be abnormal temporarily.

The inverter will recover automatically

after detecting that the utility grid is

normal.

2. If the problem occurs frequently, check

whether the grid voltage is within the

The grid voltage

permissible range.

exceeds the

· Contact the local power company if the

allowed range, or

grid voltage exceeds the permissible

2

Grid Overvoltage the duration of high

range.

voltage exceeds

the requirement of

· Modify the overvoltage protection

threshold, HVRT or disable the

HVRT.

overvoltage protection function after

obtaining the consent of the local

power company if the grid frequency is

within the permissible range.

3. Check whether the AC breaker and the

output cables are connected securely and

correctly if the problem persists.

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09 Maintenance No. Fault
Grid Rapid 3
Overvoltage
Grid 4
Undervoltage

User Manual V1.1-2024-01-05

Cause
The grid voltage is abnormal or ultrahigh.
The grid voltage is lower than the allowed range, or the duration of low voltage exceeds the requirement of LVRT.

Solutions
1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal.
2. If the problem occurs frequently, check whether the grid voltage is within the permissible range. · Contact the local power company if the grid voltage exceeds the permissible range. · Modify the grid overvoltage rapid protection threshold after obtaining the consent of the local power company if the grid voltage is within the permissible range.
1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal.
2. If the problem occurs frequently, check whether the grid voltage is within the permissible range. · Contact the local power company if the grid voltage exceeds the permissible range. · Modify the undervoltage protection threshold, LVRT or disable the undervoltage protection function after obtaining the consent of the local power company if the grid frequency is within the permissible range.
3. Check whether the AC breaker and the output cables are connected securely and correctly if the problem persists.

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09 Maintenance

No. Fault Grid 10min
5 Overvoltage
Grid 6
Overfrequency

Cause
The moving average of grid voltage in 10min exceeds the range of safety requirements.
Utility grid exception. The actual grid frequency exceeds the requirement of the local grid standard.

Solutions
1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal.
2. If the problem occurs frequently, check whether the grid voltage is within the permissible range. · Contact the local power company if the grid voltage exceeds the permissible range. · Modify the grid overvoltage rapid protection threshold after obtaining the consent of the local power company if the grid voltage is within the permissible range.
1. If the problem occurs occasionally, the utility grid may be abnormal temporarily. The inverter will recover automatically after detecting that the utility grid is normal.
2. If the problem occurs frequently, check whether the grid frequency is within the permissible range. · Contact the local power company if the grid frequency exceeds the permissible range. · Modify the overfrequency protection threshold or disable the overfrequency protection function after obtaining the consent of the local power company if the grid frequency is within the permissible range.

References

• GoodWe: Smart Energy Innovator
• GoodWe: Smart Energy Innovator
• 质保相关

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