GOODWE MIS Series Micro Inverter User Manual

: June 13, 2024
: GOODWE

GOODWE MIS Series Micro Inverter

Copyright ©GoodWe Technologies Co.,Ltd. 2023. All rights reserved. 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.

Trademarks

and other GOODWE trademarks are trademarks of GoodWe Technologies Co.,Ltd. All other trademarks or registered trademarks mentioned in this manual are owned by the company.

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.

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/.

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

Model	Nominal Output Power	Nominal Output Voltage
GW1600-MIS	1600W

220/230/240

GW1800-MIS| 1800W
GW2000-MIS| 2000W

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.

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.

Updates
The latest document contains all the updates made in earlier issues.

V1.0 2023-07-30

First Issue

Safety Precaution

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.

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.

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.

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.

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.

GOODWE-MIS-Series-Micro-Inverter-FIG-1

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.

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. GoodWe Technologies Co., Ltd. hereby declares that the inverter without wireless communication modules sold in the European market meets the requirements of the following directives:

Electromagnetic compatibility Directive 2014/30/EU (EMC)
Electrical Apparatus Low Voltage Directive 2014/35/EU (LVD)
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.

Product Introduction

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 : GOODWE-MIS-Series-Micro-Inverter-FIG-2

Supported Grid Types
For the grid type with neutral wire, the N to ground voltage must be less than 10V.

GOODWE-MIS-Series-Micro-Inverter-FIG-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 5.1 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.
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.

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 GOODWE-MIS-Series-Micro-Inverter-
FIG-5

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 EzLog-ger 3000R.

Circuit Diagram

GOODWE-MIS-Series-Micro-Inverter-FIG-6

Appearance

Parts

GOODWE-MIS-Series-Micro-Inverter-FIG-7

No.	Parts	Description
1	Antenna	Wireless communication; supports WiFi.
2	Handle	Moves or hangs the inverter.
3	Grounding Point	Connects grouding cables to the grouding points for

protection.
4| AC connector| Connects the AC branch of the inverter to the trunk

cable.

Dimensions

GOODWE-MIS-Series-Micro-Inverter-FIG-8

Indicators

GOODWE-MIS-Series-Micro-Inverter-FIG-9

Nameplate
The nameplate is for reference only.

GOODWE-MIS-Series-Micro-Inverter-FIG-10

Check and Storage

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.

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.

GOODWE-MIS-Series-Micro-Inverter-FIG-11

Storage
If the equipment is not to be installed or used immediately, please ensure that the storage environment meets the following requirements:

Do not unpack the outer package or throw the desiccant away.
Store the equipment in a clean place. Make sure the temperature and humidity are appropriate and no condensation.
The height and direction of the stacking inverters should follow the instructions on the packing box.
The inverters must be stacked with caution to prevent them from falling.
If the inverter has been long term stored, it should be checked by professionals before being put into use.

Installation

Installation Requirements

Installation Environment Requirements

Do not install the equipment in a place near flammable, explosive, or corrosive materials.
Install the equipment on a surface that is solid enough to bear the inverter weight.
Install the equipment in a well-ventilated place to ensure good dissipation. Also, the installation space should be large enough for operations.
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.
Install the equipment in a sheltered place to avoid direct sunlight, rain, and snow.
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.
Install the equipment at a height that is convenient for operation and maintenance, electrical connections, and checking indicators and labels.
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.

GOODWE-MIS-Series-Micro-Inverter-FIG-12

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.

GOODWE-MIS-Series-Micro-Inverter-FIG-14

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

GOODWE-MIS-Series-Micro-Inverter-FIG-15

Inverter Installation

Moving the Inverter

CAUTION
Move the inverter to the site before installation. Follow the instructions below to avoid personal injury or equipment damage.

Consider the weight of the equipment before moving it. Assign enough personnel to move the equipment to avoid personal injury.
Wear safety gloves to avoid personal injury.
Keep balance to avoid falling down when moving the equipment.
Do not bump or hit the antenna. Otherwise, the antenna may be damaged.
Instead of lifting the cables directly, it is recommended to hold the handle of the inverter to prevent potential damage to the cables.

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).
- 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.

Electrical Connection

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.

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.

Connecting the PE Cable

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.
The M8 grounding OT terminal should be prepared by the customer.

GOODWE-MIS-Series-Micro-Inverter-FIG-20

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	AC circuit breaker
For single inverter	For double inverters

For four inverters
GW1600-MIS| 10A| 25A| 32A| 32A
GW1800-MIS| 16A| 25A| 32A| 40A
GW2000-MIS| 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 should be prepared by the customer. Recommended specifications: 4mm2 or 6mm2.

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| Over Current Protection Device (OCPD)
---|---|---

GW1600-MIS

|

GW1800-MIS

|

GW2000-MIS

4mm2| 2| 2| 2| 25A
6mm2| 4| 3| 3| 32A
6mm2| –| 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.

GOODWE-MIS-Series-Micro-Inverter-FIG-21 GOODWE-
MIS-Series-Micro-Inverter-FIG-22

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

GOODWE-MIS-Series-Micro-Inverter-FIG-23

DANGER

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.
Do not plug or unplug the connectors when the inverter is running.

WARNING

Connect the PV cables using the MC4 PV connectors. The manufacturer shall not be liable for the damage if other connectors are used.
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.
Connect the connectors of the same PV module to the same pair of PV connectors on the inverter.
Recommended PV module specifications: GW1600-MIS: 0W~540W; 1800-MIS: 0W~600W; 2000: 0W~670W.
DC extension cable can be used if necessary. Recommended specifications: 4-6mm2.

NOTICE
Seal the PV connectors using waterproof covers when they are not to be used. Otherwise, the ingress protection rating will be influenced. GOODWE-
MIS-Series-Micro-Inverter-FIG-24

Equipment Commissioning

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

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.

System Commissioning

GOODWE-MIS-Series-Micro-Inverter-FIG-27

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:

Check the operating data, software version, alarms, etc.
Set grid parameters, communication parameters, etc.
Equipment maintenance.

Visit https://en.goodwe.com or scan the QR code to read the user manual.

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:

Manage the organization or user information;
Add and monitor the power plant information;
Equipment maintenance.

Maintenance

Power Off the Inverter

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.

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.

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.

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.

Inverter information like serial number, software version, installation date, fault time, fault frequency, etc.
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.
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.

2

|

Grid Overvoltage

|

The grid voltage exceeds the allowed range, or the duration of high voltage exceeds

the requirement of HVRT.

| 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 overvoltage protection threshold, HVRT or disable the 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.

No.	Fault	Cause	Solutions

3

|

Grid Rapid Overvoltage

|

The grid voltage is abnormal or ultra- high.

| 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.

4

|

Grid Undervoltage

|

The grid voltage is lower than the allowed range, or

the duration of low voltage exceeds the requirement of LVRT.

| 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.

No.	Fault	Cause	Solutions

5

|

Grid 10min Overvoltage

|

The moving average of grid voltage in 10min exceeds the range of safety requirements.

| 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.

6

|

Grid Overfrequency

|

Utility grid exception. The actual grid frequency exceeds the requirement of the local grid standard.

| 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.

No.	Fault	Cause	Solutions

7

|

Grid Underfrequency

|

Utility grid exception. The actual grid frequency is lower than the

requirement of the local grid standard.

| 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 underfrequency protection threshold or disable the underfrequency protection function

after obtaining the consent of the local power company if the grid frequency is

within the permissible range.

8

|

Grid Frequency Instability

|

Utility grid exception. The actual grid frequency change rate does not meet the requirement

of the local grid standard.

| 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.

• Contact the dealer or the after-sales service if the grid frequency is within

the permissible range.

9

|

Anti-islanding

| The utility grid is disconnected. The utility grid is disconnected according to the

safety regulations, but the grid voltage is maintained due

to the loads.

|

1. Check whether the utility grid is disconnected.

2. Contact the dealer or the after-sales service.

No.	Fault	Cause	Solutions

10

|

LVRT

Undervoltage

| Utility grid exception. The duration of the utility grid

exception exceeds the set time of

LVRT.

|

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. If not, contact the local power company. If yes, contact the dealer or the after-sales service.

11

|

HVRT

Overvoltage

| Utility grid exception. The duration of utility grid exception exceeds the set time of HVRT.

12

| Large DC of AC

current L1

|

The DC component of the output current exceeds the safety range or default range.

| 1. If the problem is caused by an external fault like a utility grid exception or frequency exception, the inverter will recover automatically after solving the problem.

2. If the problem occurs frequently and the PV station cannot work properly, contact

the dealer or the after-sales service.

13

|

Large DC of AC

current L2

14

|

Low Insulation Res.

|

1. The PV string is short-circuited to PE.

2. The PV system is in a moist environment and the cable is not well

insulated to the ground.

| 1. Check whether the resistance of the PV string to PE exceeds 50kΩ. If no, check the short circuit point.

2. Check whether the PE cable is connected correctly.

3. If the resistance is lower than default value on rainy days, please reset the ISO.

In Australia or New Zealand, customers may be informed in the following ways once insulation fault occurs.

1. The inverter is equipped with a buzzer that may sound continuously for 1 minute in the event of a fault. If the problem persists, the buzzer may sound every 30 minutes.

2. If the inverter is added to the monitoring platform, customers can set the alarm remind

method as email reminding.

No.	Fault	Cause	Solutions

15

|

Anti Reverse

power Failure

|

Abnormal fluctuation of load

| 1. If the exception is caused by an external fault, the inverter will recover automatically after solving the problem.

2. If the problem occurs frequently and the PV station cannot work properly, contact

the dealer or the after-sales service.

16

|

Flash Fault

| The internal Flash storage is abnormal.| Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if the problem persists.

17

|

Cavity Overtemperature

| 1. The inverter is installed in a place with poor ventilation.

2. The ambient temperature exceeds 60℃.

3. A fault occurs in

the internal fan

of the inverter.

| 1. Check the ventilation and the ambient temperature at the installation point.

2. If the ventilation is poor or the ambient temperature is too high, improve the ventilation and heat dissipation.

3. Contact the dealer or after-sales service if both the ventilation and the ambient temperature are normal.

18

|

BUS Overvoltage

| 1. The PV voltage is too high.

2. The sampling of the inverter BUS voltage is

abnormal.

| Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if the problem persists.

19

|

PV Input Overvoltage

| The PV array configuration is not correct. Too

many PV panels are connected in series

in the PV string.

|

Check the serial connection of the PV array. Make sure that the open circuit voltage of the PV string is not higher than the maximum operating voltage of the inverter.

20

| PV Continuous Hardware Overcurrent| 1. The PV

configuration is

not proper.

2. The hardware is

damaged.

| Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if the problem persists.

21

| PV Continuous Software Overcurrent| 1. The PV

configuration is

not proper.

2. The hardware is

damaged.

| Disconnect the AC output switch and DC input switch, then connect them 5 minutes later. Contact the dealer or the after-sales service if the problem persists.

22

| The string is connected reversely.| The PV string is connected reversely.| Check whether the PV modules are connected reversely.

Routine Maintenance

DANGER
Power off the inverter before operations and maintenance. Otherwise, the inverter may be damaged or electric shocks may occur.

Maintaining Item	Maintaining Method	Maintaining Period
System Clean	Check the heat sink for foreign matter or dust.	Once 6-12

months

Electrical Connection

| Check whether the cables are securely connected. Check whether the cables are broken or whether there is any exposed copper core.| ****

Once 6-12 months

Sealing

| Check whether all the terminals and ports are properly sealed. Reseal the cable hole if it is not sealed or too big.| ****

Once a year

Technical Parameters

Technial Data	GW1600-MIS	GW1800-MIS	GW2000-MIS

Input
Max. Input Power (W)| 2160| 2430| 2700
Max. Input Voltage (V)| 65| 65| 65
MPPT Operating Voltage Range (V)| 16~60| 16~60| 16~60
MPPT Voltage Range at Nominal

Power (V)

| 27~60| 30~60| 33~60
Start-up Voltage (V)| 22| 22| 22
Nominal Input Voltage (V)| 42| 42| 42
Max. Input Current per MPPT (A)| 16/16/16/16| 16/16/16/16| 16/16/16/16
Max. Short Circuit Current per MPPT

(A)

| 25/25/25/25| 25/25/25/25| 25/25/25/25
Max. Backfeed Current to The Array

(A)

| 0| 0| 0
Number of MPPT| 4| 4| 4
Number of Strings per MPPT| 1| 1| 1
Output
Nominal Output Power (W)| 1,600| 1,800| 2,000
Nominal Output Apparent Power

(VA)

| 1,600| 1,800| 2,000
Max. AC Active Power (W)| 1,600| 1,800| 2,000
Max. AC Apparent Power (VA)| 1,600| 1,800| 2,000
Nominal Power at 40℃ (W)| 1,600| 1,800| 2,000
Max Power at 40℃ (including AC

overload) (W)

| 1,600| 1,800| 2,000
Nominal Output Voltage (V)| 220/230/240| 220/230/240| 220/230/240
Output Voltage Range (V)| 180~275| 180~275| 180~275
Nominal AC Grid Frequency (Hz)| 50/60| 50/60| 50/60
AC Grid Frequency Range (Hz)| 50/60 ±5| 50/60 ±5| 50/60 ±5

Max. Output Current (A)

| 7.27@220 V

6.96@230 V

6.67@240 V

| 8.18@220 V

7.83@230 V

7.5@240 V

| 9.09@220 V

8.7@230 V

8.33@240 V

Max. Output Fault Current(peak and

duration) (A/ms)

| 54/2| 54/2| 54/2
Inrush Current(peak and duration)

(A/us)

| 50/10| 50/10| 50/10
Nominal Output Current (A) (at 230V)| 7.0| 7.8| 8.7
Power Factor| ~1 (Adjustable from 0.8 leading to 0.8 lagging)
Max. Total Harmonic Distortion| <3%| <3%| <3%
Technial Data| GW1600-MIS| GW1800-MIS| GW2000-MIS
---|---|---|---
Maximum Output Overcurrent

Protection (A)

connector

| T-type AC

connector

| T-type AC

connector

Environmental Category| 4K4H| 4K4H| 4K4H
Pollution Degree| III| III| III
Overvoltage Category| DC II / AC III| DC II / AC III| DC II / AC III
Protective class| I| I| I
Technial Data| GW1600-MIS| GW1800-MIS| GW2000-MIS
---|---|---|---

The Decisive Voltage Class (DVC)

| PV: C

AC: C

COM: A

| PV: C

AC: C

COM: A

| PV: C

AC: C

COM: A

Feedback.

Appendix

Installation Map Reference

User information:| Panel model：| Sheet_| N

---|---|---|---
Inverter model:
| Column 1| Column 2| Column 3| Column 4| Column 5| Column 6| Column 7
Row 1| | | | | | |
Row 2| | | | | | |
Row 3| | | | | | |
Row 4| | | | | | |
Row 5| | | | | | |
Row 6| | | | | | |
Row 7| | | | | | |
Row 8| | | | | | |
Row 9| | | | | | |
Row 10| | | | | | |