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HUAWEI SUN2000-50KTL-M0 Solar Inverter User Manual

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User Manual

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SUN2000-(50KTL, 60KTL, 65KTL)-M0 User Manual Issue 08 Date 2021-01-20 HUAWEI TECHNOLOGIES CO., LTD.

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SUN2000-(50KTL, 60KTL, 65KTL)-M0
User Manual

Issue Date

08 2021-01-20

HUAWEI TECHNOLOGIES CO., LTD.

Copyright � Huawei Technologies Co., Ltd. 2021. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

https://e.huawei.com

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About This Document

Purpose
This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and SUN2000-65KTL-M0 (SUN2000 for short) in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting. Before installing and operating the SUN2000, ensure that you are familiar with the features, functions, and safety precautions provided in this document.

Intended Audience
This document is intended for photovoltaic (PV) plant personnel and electrical technicians.

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol

Remarks
Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.

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Symbol

About This Document
Remarks
Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.
Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History
Changes between document issues are cumulative. The latest document issue contains all updates made in previous issues.

Issue 08 (2021-01-20)
Updated 5.6.1 Communication Mode Description. Updated 5.6.2.1 Terminal Block Connection. Added 7.3 (Optional) Installing a Smart Dongle.

Issue 07 (2020-10-12)
Updated 2.1 Introduction. Updated 4.3.1 Environment Requirements. Updated A Grid Code.

Issue 06 (2020-07-07)
Updated 4.3.1 Environment Requirements.

Issue 05 (2019-12-18)
Updated 3 Storage. Added 6.4 Power-Off for Troubleshooting.

Issue 04 (2019-06-30)
Updated 2.2 Appearance. Updated 5 Electrical Connections.

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Updated 6.2 Powering On the SUN2000. Updated 10 Technical Specifications.
Issue 03 (2019-04-16)
Updated 5.1 Precautions. Updated A Grid Code.
Issue 02 (2018-07-30)
Updated 5.4 Installing the AC Output Power Cable. Updated 7.2.1.3 Setting Feature Parameters. Updated 8.2 Troubleshooting.
Issue 01 (2018-04-20)
This issue is used for first office application (FOA).

About This Document

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Contents

About This Document................................................................................................................ ii
1 Safety Information.................................................................................................................. 1
1.1 General Safety.......................................................................................................................................................................... 1 1.2 Personnel Requirements....................................................................................................................................................... 2 1.3 Electrical Safety........................................................................................................................................................................ 3 1.4 Installation Environment Requirements.......................................................................................................................... 4 1.5 Mechanical Safety................................................................................................................................................................... 4 1.6 Commissioning......................................................................................................................................................................... 5 1.7 Maintenance and Replacement..........................................................................................................................................6
2 Overview....................................................................................................................................7
2.1 Introduction............................................................................................................................................................................... 7 2.2 Appearance................................................................................................................................................................................ 9 2.3 Label Description.................................................................................................................................................................. 11 2.3.1 Enclosure Labels.................................................................................................................................................................12 2.3.2 Product Nameplate........................................................................................................................................................... 13 2.4 Working Principles................................................................................................................................................................ 14 2.4.1 Conceptual Diagram.........................................................................................................................................................14 2.4.2 Working Modes.................................................................................................................................................................. 15
3 Storage..................................................................................................................................... 17
4 Installation..............................................................................................................................19
4.1 Checking Before Installation............................................................................................................................................. 19 4.2 Tools.......................................................................................................................................................................................... 19 4.3 Determining the Installation Position............................................................................................................................ 21 4.3.1 Environment Requirements............................................................................................................................................21 4.3.2 Space Requirements......................................................................................................................................................... 22 4.4 Installing the Mounting Bracket...................................................................................................................................... 25 4.4.1 Support-mounted Installation.......................................................................................................................................26 4.4.2 Wall-mounted Installation............................................................................................................................................. 28 4.5 Installing the SUN2000....................................................................................................................................................... 30
5 Electrical Connections.......................................................................................................... 35
5.1 Precautions.............................................................................................................................................................................. 35

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Contents

5.2 Crimping the OT Terminal................................................................................................................................................. 35 5.3 Opening the Maintenance Compartment Door......................................................................................................... 38 5.4 Installing the AC Output Power Cable.......................................................................................................................... 39 5.5 Connecting DC input power cables................................................................................................................................ 46 5.6 Installing the Communications Cable............................................................................................................................ 52 5.6.1 Communication Mode Description..............................................................................................................................52 5.6.2 Installing the RS485 Communications Cable........................................................................................................... 55 5.6.2.1 Terminal Block Connection......................................................................................................................................... 55 5.6.2.2 Connecting Cables to the RJ45 Network Port......................................................................................................58 5.6.3 (Optional) Installing the Solar Tracker Power Cable............................................................................................ 61 5.7 Closing the Maintenance Compartment Door........................................................................................................... 64
6 Commissioning....................................................................................................................... 65
6.1 Checking Before Power-On................................................................................................................................................65 6.2 Powering On the SUN2000............................................................................................................................................... 66 6.3 Powering Off the System................................................................................................................................................... 70 6.4 Power-Off for Troubleshooting........................................................................................................................................ 71
7 Man-Machine Interactions.................................................................................................. 73
7.1 Operations with a USB Flash Drive................................................................................................................................ 73 7.1.1 Exporting Configurations................................................................................................................................................ 73 7.1.2 Importing Configurations............................................................................................................................................... 75 7.1.3 Exporting Data................................................................................................................................................................... 76 7.1.4 Upgrading............................................................................................................................................................................ 77 7.2 Operations with the SUN2000 App................................................................................................................................ 78 7.2.1 Operations Related to the Advanced User............................................................................................................... 79 7.2.1.1 Setting Grid Parameters...............................................................................................................................................79 7.2.1.2 Setting Protect Parameters......................................................................................................................................... 79 7.2.1.3 Setting Feature Parameters........................................................................................................................................ 80 7.2.2 Operations Related to the Special User.....................................................................................................................84 7.2.2.1 Setting Grid Parameters...............................................................................................................................................85 7.2.2.2 Setting Protection Parameters................................................................................................................................... 87 7.2.2.3 Setting Feature Parameters........................................................................................................................................ 89 7.2.2.4 Setting Power Adjustment Parameters...................................................................................................................91 7.3 (Optional) Installing a Smart Dongle............................................................................................................................ 94
8 Maintenance........................................................................................................................... 96
8.1 Routine Maintenance.......................................................................................................................................................... 96 8.2 Troubleshooting..................................................................................................................................................................... 97
9 Handling the Inverter........................................................................................................ 105
9.1 Removing the SUN2000................................................................................................................................................... 105 9.2 Packing the SUN2000....................................................................................................................................................... 105 9.3 Disposing of the SUN2000.............................................................................................................................................. 105
10 Technical Specifications...................................................................................................106

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Contents

A Grid Code.............................................................................................................................. 111 B Domain Name List of Management Systems...............................................................122 C Product User Lists............................................................................................................... 123 D Acronyms and Abbreviations........................................................................................... 124

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1 Safety Information

1.1 General Safety

Statement

Before installing, operating, and maintaining the equipment, read this document and observe all the safety instructions on the equipment and in this document.
The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this document do not cover all the safety instructions. They are only supplements to the safety instructions. Huawei will not be liable for any consequence caused by the violation of general safety requirements or design, production, and usage safety standards.
Ensure that the equipment is used in environments that meet its design specifications. Otherwise, the equipment may become faulty, and the resulting equipment malfunction, component damage, personal injuries, or property damage are not covered under the warranty.
Follow local laws and regulations when installing, operating, or maintaining the equipment. The safety instructions in this document are only supplements to local laws and regulations.
Huawei will not be liable for any consequences of the following circumstances:
Operation beyond the conditions specified in this document
Installation or use in environments which are not specified in relevant international or national standards
Unauthorized modifications to the product or software code or removal of the product
Failure to follow the operation instructions and safety precautions on the product and in this document
Equipment damage due to force majeure, such as earthquakes, fire, and storms
Damage caused during transportation by the customer
Storage conditions that do not meet the requirements specified in this document

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General Requirements

1 Safety Information

DANGER
Do not work with power on during installation.
Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, and performing outdoor installation) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.
After installing the equipment, remove idle packing materials such as cartons, foam, plastics, and cable ties from the equipment area.
In the case of a fire, immediately leave the building or the equipment area, and turn on the fire alarm bell or make an emergency call. Do not enter the building on fire in any case.
Do not scrawl, damage, or block any warning label on the equipment. Tighten the screws using tools when installing the equipment. Understand the components and functioning of a grid-tied PV power system
and relevant local standards. Repaint any paint scratches caused during equipment transportation or
installation in a timely manner. Equipment with scratches cannot be exposed to an outdoor environment for a long period of time. Do not open the host panel of the equipment.
Personal Safety
If there is a probability of personal injury or equipment damage during operations on the equipment, immediately stop the operations, report the case to the supervisor, and take feasible protective measures.
Use tools correctly to avoid hurting people or damaging the equipment. Do not touch the energized equipment, as the enclosure is hot.

1.2 Personnel Requirements
Personnel who plan to install or maintain Huawei equipment must receive thorough training, understand all necessary safety precautions, and be able to correctly perform all operations.
Only qualified professionals or trained personnel are allowed to install, operate, and maintain the equipment.
Only qualified professionals are allowed to remove safety facilities and inspect the equipment.
Personnel who will operate the equipment, including operators, trained personnel, and professionals, should possess the local national required qualifications in special operations such as high-voltage operations, working at heights, and operations of special equipment.

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1 Safety Information

Only professionals or authorized personnel are allowed to replace the equipment or components (including software).
NOTE
Professionals: personnel who are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, and maintenance
Trained personnel: personnel who are technically trained, have required experience, are aware of possible hazards on themselves in certain operations, and are able to take protective measures to minimize the hazards on themselves and other people
Operators: operation personnel who may come in contact with the equipment, except trained personnel and professionals

1.3 Electrical Safety

Grounding

For the equipment that needs to be grounded, install the ground cable first when installing the equipment and remove the ground cable last when removing the equipment.
Do not damage the ground conductor.
Do not operate the equipment in the absence of a properly installed ground conductor.
Ensure that the equipment is connected permanently to the protective ground. Before operating the equipment, check its electrical connection to ensure that it is securely grounded.

General Requirements

DANGER
Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or fire may occur.
Ensure that all electrical connections comply with local electrical standards. Obtain approval from the local electric utility company before using the
equipment in grid-tied mode. Ensure that the cables you prepared meet local regulations. Use dedicated insulated tools when performing high-voltage operations.
AC and DC Power

DANGER
Do not connect or disconnect power cables with power on. Transient contact between the core of the power cable and the conductor will generate electric arcs or sparks, which may cause fire or personal injury.

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1 Safety Information

Before making electrical connections, switch off the disconnector on the upstream device to cut off the power supply if people may contact energized components.
Before connecting a power cable, check that the label on the power cable is correct.
If the equipment has multiple inputs, disconnect all the inputs before operating the equipment.

Cabling

When routing cables, ensure that a distance of at least 30 mm exists between the cables and heat-generating components or areas. This prevents damage to the insulation layer of the cables.
Bind cables of the same type together. When routing cables of different types, ensure that they are at least 30 mm away from each other.
Ensure that the cables used in a grid-tied PV power system are properly connected and insulated and meet specifications.

1.4 Installation Environment Requirements
Ensure that the equipment is installed in a well ventilated environment. To prevent fire due to high temperature, ensure that the ventilation vents or
heat dissipation system are not blocked when the equipment is running. Do not expose the equipment to flammable or explosive gas or smoke. Do
not perform any operation on the equipment in such environments.

1.5 Mechanical Safety

Using Ladders

Use wooden or fiberglass ladders when you need to perform live working at heights.
When a step ladder is used, ensure that the pull ropes are secured and the ladder is held firm.
Before using a ladder, check that it is intact and confirm its load bearing capacity. Do not overload it.
Ensure that the wider end of the ladder is at the bottom, or protective measures have been taken at the bottom to prevent the ladder from sliding.
Ensure that the ladder is securely positioned. The recommended angle for a ladder against the floor is 75 degrees, as shown in the following figure. An angle rule can be used to measure the angle.

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1 Safety Information

When climbing a ladder, take the following precautions to reduce risks and ensure safety: � Keep your body steady. � Do not climb higher than the fourth rung of the ladder from the top. � Ensure that your body's center of gravity does not shift outside the legs of the ladder.
Drilling Holes
When drilling holes into a wall or floor, observe the following safety precautions:
Wear goggles and protective gloves when drilling holes. When drilling holes, protect the equipment from shavings. After drilling, clean
up any shavings that have accumulated inside or outside the equipment.
Moving Heavy Objects
Be cautious to avoid injury when moving heavy objects.

When moving the equipment by hand, wear protective gloves to prevent injuries.

1.6 Commissioning
When the equipment is powered on for the first time, ensure that professional personnel set parameters correctly. Incorrect settings may result in inconsistency with local certification and affect the normal operation of the equipment.

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1 Safety Information

1.7 Maintenance and Replacement
DANGER
High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage. Prior to maintenance, power off the equipment and strictly comply with the safety precautions in this document and relevant documents.
Maintain the equipment with sufficient knowledge of this document and using proper tools and testing equipment.
Before maintaining the equipment, power it off and follow the instructions on the delayed discharge label to ensure that the equipment is powered off.
Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.
If the equipment is faulty, contact your dealer. The equipment can be powered on only after all faults are rectified. Failing to
do so may escalate faults or damage the equipment.

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2 Overview

2.1 Introduction

Function

The SUN2000 is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power to the power grid.

Models

Figure 2-1 Designation explanation of the SUN2000-60KTL-M0

Model SUN2000-50KTL-M0 SUN2000-60KTL-M0 SUN2000-65KTL-M0

Rated Output Power 50 kW 60 kW 65 kW

Rated Output Voltage 380 V/400 V/415 V 380 V/400 V/480 V 480 V

Networking Application
The SUN2000 applies to grid-tied PV systems for commercial rooftops and large PV plants. Typically, a grid-tied PV system consists of the PV string, SUN2000, alternating current distribution unit (ACDU), and isolation transformer.

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Figure 2-2 Network diagram

2 Overview

(A) PV string (D) Isolation transformer

(B) SN2000 (E) Power grid

NOTE
In medium-voltage grid connection scenarios and non-low-voltage public grid connection scenarios (industrial environment), the SUN2000 is powered by a dedicated power transformer instead of connecting to low-voltage overhead power lines.
Supported Power Grid
The SUN2000-50KTL-M0 and SUN2000-60KTL-M0 support the following power grid modes: TN-S, TN-C, TN-C-S, TT, and IT. The SUN2000-65KTL-M0 supports only IT grid mode.
Figure 2-3 Power grid modes

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2.2 Appearance
Dimensions

2 Overview

Front View

(1) Maintenance compartment door

(2) LED

LED PV connection LED

Status Steady green

(3) Host panel cover
Meaning At least one PV string is properly connected, and the DC input voltage of the corresponding MPPT circuit is higher than or equal to 200 V.

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2 Overview

LED
Grid-tied LED Communication LED Alarm/Maintenance LED

Status

Meaning

Off

The SUN2000 disconnects from

all PV strings, or the DC input

voltage of each MPPT circuit is

less than 200 V.

Steady green

The SUN2000 is exporting power to the power grid.

Off

The SUN2000 is not exporting

power to the power grid.

Blinking green (on for 0.2s and then off for 0.2s)

The SUN2000 receives communications data normally.

Off

The SUN2000 receives no

communications data for 10s.

Alarm status

Blinking red at long intervals (on for 1s and then off for 4s)

The SUN2000 is generating a warning alarm.

Blinking red at short intervals (on for 0.5s and then off for 0.5s)

The SUN2000 is generating a minor alarm.

Steady red

The SUN2000 is generating a major alarm.

Local maintenance status

Blinking green at long Local maintenance is in

intervals (on for 1s

progress.

and then off for 1s)

Blinking green at short intervals (on for 0.125s and then off for 0.125s)

Local maintenance fails.

Steady green

Local maintenance is successful.

NOTE
Local maintenance refers to operations performed after a USB flash drive, Bluetooth module, WLAN module or USB data cable is inserted into the USB port of the SUN2000. For example, local maintenance includes configuration import and export using a USB flash drive, and maintenance operations on the SUN2000 app installed on a device connected to the SUN2000 by a Bluetooth module, WLAN module or USB data cable.
If an alarm occurs during local maintenance, the Alarm/Maintenance LED shows the local maintenance status first. After the USB flash drive, Bluetooth module, WLAN module or USB data cable is removed, the LED shows the alarm status.

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Bottom View

2 Overview

No. Component 1 Cable gland
2 DC switch 1 3 DC input terminals 4 DC input terminals 5 DC switch 2 6 Cable gland 7 Cable gland 8 USB port

Silk Screen COM1, COM2, and COM3 DC SWITCH 1 +/� +/� DC SWITCH 2 AC OUTPUT RESERVE USB

Description Inner diameter: 14�18 mm
N/A Controlled by DC SWITCH 1 Controlled by DC SWITCH 2 N/A Inner diameter: 24�57 mm Inner diameter: 14�18 mm N/A

Holes Reserved at the Side of the Enclosure

NOTE There are two M6 tapped holes reserved on both sides of the enclosures, which are used for installing an awning.
2.3 Label Description

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2.3.1 Enclosure Labels
Label

2 Overview

Name Running warning Burn warning Delay discharge
Refer to documentation Grounding Operation warning

Meaning
Potential hazards exist after the SUN2000 is powered on. Take protective measures when operating the SUN2000.
Do not touch a running SUN2000 because it generates high temperatures on the shell.
High voltage exists after the SUN2000 is powered on. Only certified electricians are allowed to perform operations on the SUN2000.
Residual voltage exists after the SUN2000 is powered off. It takes 15 minutes for the SUN2000 to discharge to the safe voltage.
Reminds operators to refer to the documents provided with the SUN2000.
Indicates the position for connecting the PE cable.
Do not remove the DC input connector when the SUN2000 is running.

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Label
2.3.2 Product Nameplate

2 Overview

Name DC terminal operation warning
SUN2000 serial number (SN) label

Meaning
High voltage exists after the SUN2000 is powered on. To avoid electric shocks, perform the following system power-off operations before plugging or unplugging DC input connectors of the SUN2000:
1. Send a shutdown command.
2. Turn off the downstream AC switch.
3. Turn off the two DC switches at the bottom.
Indicates the SUN2000 SN.

Weight label

The SUN2000 needs to be carried by four people or using a pallet truck.

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Figure 2-4 Nameplate of the SUN2000-60KTL-M0

2 Overview

(1) Trademark, product name, and model number
(3) Compliance symbols

(2) Important technical specifications (4) Company name and place of production

NOTE
The nameplate figure is for reference only.
2.4 Working Principles
2.4.1 Conceptual Diagram
The SUN2000 receives inputs from 12 PV strings. Then the inputs are grouped into six MPPT routes inside the SUN2000 to track the maximum power point of the PV strings. The DC power is then converted into three-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides. Figure 2-5 shows the conceptual diagram for the SUN2000-50KTL/60KTL-M0. Figure 2-6 shows the conceptual diagram for the SUN2000-65KTL-M0.

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Figure 2-5 Conceptual diagram for the SUN2000-50KTL/60KTL-M0

2 Overview

Figure 2-6 Conceptual diagram for the SUN2000-65KTL-M0

2.4.2 Working Modes
The SUN2000 can work in Standby, Operating, or Shutdown mode.

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Figure 2-7 Working modes

2 Overview

Table 2-1 Working mode description

Working Description Mode

Standby

The SUN2000 enters Standby mode when the external environment does not meet the operating requirements. In Standby mode:
The SUN2000 continuously performs status check and enters the Operating mode once the operating requirements are met.
The SUN2000 enters Shutdown mode after detecting a shutdown command or a fault after startup.

Operating

In Operating mode:
The SUN2000 converts DC power from PV strings into AC power and feeds the power to the power grid.
The SUN2000 tracks the maximum power point to maximize the PV string output.
If the SUN2000 detects a fault or a shutdown command, it enters the Shutdown mode.
The SUN2000 enters Standby mode after detecting that the PV string output power is not suitable for connecting to the power grid for generating power.

Shutdown

In Standby or Operating mode, the SUN2000 enters Shutdown mode after detecting a fault or shutdown command.
In Shutdown mode, the SUN2000 enters Standby mode after detecting a startup command or that the fault is rectified.

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3 Storage

3 Storage
The following requirements should be met when the SUN2000 needs to be stored prior to installation:
Do not remove the packing materials, and check the packing materials regularly (recommended: every three months). If any rodent bites are found, replace the packing materials immediately. If the solar inverter is unpacked but not put into use immediately, put it inside the original package with the desiccant bag, and seal it using tape.
The ambient temperature and humidity should be suitable for the storage. The air must not contain corrosive or flammable gases.

The solar inverter should be stored in a clean and dry place and be protected from dust and water vapor corrosion. The solar inverter must be protected against rain and water.
Do not tilt the package or place it upside down.
To avoid personal injury or device damage, stack inverters with caution to prevent them from falling over.

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3 Storage

If the solar inverter has been stored for more than two years, it must be checked and tested by professionals before being put into use.

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4 Installation

4 Installation
4.1 Checking Before Installation
Outer Packing Materials
Before unpacking the inverter, check the outer packing materials for damage, such as holes and cracks, and check the inverter model. If any damage is found or the inverter model is not what you requested, do not unpack the package and contact your supplier as soon as possible.
NOTE You are advised to remove the packing materials within 24 hours before installing the inverter.
Package Contents
After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component is missing, contact your supplier.
NOTE For details about the number of contents, see the Packing List in the packing case.
4.2 Tools

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Type Tool

4 Installation

Hammer drill
Drill bit: 14 mm and 16 mm

Socket wrench

Torque wrench

Torque screwdriver (Phillips head: M4; flat head: M4)

Diagonal pliers

Wire stripper

Install ation tools

Flat-head screwdriver
Head: 0.6 mm x 3.5 mm

Rubber mallet

Utility knife

Cable cutter

Crimping tool
Model: UTXTC0005 or H4TC0003; manufacturer: Amphenol

RJ45 crimping tool

Removal wrench
Model: H4TW0001; manufacturer: Amphenol

Vacuum cleaner

Multimeter
DC voltage measurement range 1100 V DC

Marker

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Type Tool

4 Installation

Measuring tape

Digital or bubble level

Hydraulic pliers N/A

Heat shrink tubing N/A

Heat gun

Cable tie

PPE Safety gloves

Safety goggles

Anti-dust respirator Safety shoes

NOTE UTXTC0005 is used to crimp metal cold forming contacts, while H4TC0003 is used to crimp metal stamping forming contacts.
4.3 Determining the Installation Position

4.3.1 Environment Requirements

Basic Requirements
Do not install the inverter in working or living areas.
If the device is installed in public places (such as parking lots, stations, and factories) other than working and living areas, install a protective net outside the device, set up a safety warning sign to isolate the device, and prevent unauthorized personnel from approaching the inverter. This is to avoid personal injury or property loss caused by accidental contact or other reasons during device operation.
Do not install the inverter in areas with flammable materials.
Do not install the inverter in areas with explosive materials.

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4 Installation

Do not install the inverter in areas with corrosive materials.
Do not install the inverter where its enclosure and heat sinks are easily accessible, because the voltage is high and these parts are hot during operation.
Install the inverter in a well-ventilated environment for heat dissipation
If the inverter is installed in an airtight environment, a heat dissipation device or ventilation device must be installed to ensure that the indoor ambient temperature is not higher than the external ambient temperature during operation.
You are advised to install the inverter in a sheltered place or install an awning over it.
The inverter will be corroded in salt areas. Before installing the inverter outdoors in salt areas, consult Huawei. A salt area refers to the region within 500 meters from the coast or prone to sea breeze. The regions prone to sea breeze vary with weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).
NOTE
In medium-voltage grid connection scenarios and non-low-voltage public grid connection scenarios (industrial environment), the inverter should be physically separated from thirdparty wireless communication facilities and residential environments by distance greater than 30 m.
Mounting Structure Requirements
The mounting structure where the SUN2000 is installed must be fireproof.
Do not install the SUN2000 on flammable building materials.
The SUN2000 is heavy. Ensure that the installation surface is solid enough to bear the weight load.
In residential areas, do not install the SUN2000 on drywalls or walls made of similar materials which have a weak sound insulation performance because the noise generated by the SUN2000 is noticeable.
4.3.2 Space Requirements

Reserve enough clearance around the SUN2000 and determine an appropriate installation tilt to ensure sufficient space for installation and heat dissipation.

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Figure 4-1 Installation space requirements

4 Installation

NOTE
For ease of installing the SUN2000 on the mounting bracket, connecting cables to the bottom of the SUN2000, and maintaining the SUN2000 in future, it is recommended that the bottom clearance be in the range of 600 mm to 730 mm. If you have any questions about the clearances, consult the local technical support engineers.
Figure 4-2 Installation tilts

When installing multiple SUN2000s, install them in horizontal mode if sufficient space is available and install them in triangle mode if no sufficient space is available. Stacked installation is not recommended.

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Figure 4-3 Horizontal installation mode (recommended)

4 Installation

Figure 4-4 Triangle installation mode (recommended)

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Figure 4-5 Stacked installation mode (not recommended)

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4.4 Installing the Mounting Bracket
Installation Precautions
Figure 4-6 shows the SUN2000 mounting bracket dimensions. Figure 4-6 Mounting bracket dimensions

NOTE
The SUN2000 mounting bracket has four groups of tapped holes, each group containing four tapped holes. Mark any hole in each group based on site requirements and mark four holes in total. Two round holes are preferred.
Before installing the mounting bracket, remove the security torx wrench from the mounting bracket and save it for later use.

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Figure 4-7 Removing a security torx wrench

4 Installation

4.4.1 Support-mounted Installation
Support-mounted Installation
Step 1 Determine the positions for drilling holes using the mounting bracket. Level the positions of mounting holes using a bubble or digital level, and mark the positions with a marker.
Figure 4-8 Determining hole positions

Step 2 Drill holes using a hammer drill. NOTE
You are advised to apply anti-rust paint on the hole positions for protection.

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Figure 4-9 Drilling a hole

4 Installation

Step 3 Align the mounting bracket holes with the drilled holes, insert bolt assemblies (flat washers, spring washers, and M12x40 bolts) into the holes through the mounting bracket, and secure them using the supplied stainless steel nuts and flat washers.
NOTE
M12x40 bolt assemblies are provided with the SUN2000. If the bolt length does not meet the installation requirements, prepare M12 bolt assemblies by yourself and use them together with the provided M12 nuts.

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Figure 4-10 Securing a mounting bracket

4 Installation

----End
4.4.2 Wall-mounted Installation
Wall-mounted Installation
Step 1 Determine the positions for drilling holes using the mounting bracket. Level the positions of mounting holes using a bubble or digital level, and mark the positions with a marker.
Figure 4-11 Determining hole positions

Step 2 Drill holes using a hammer drill and install expansion bolts.

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NOTE You need to prepare expansion bolts. M12x60 stainless steel expansion bolts are recommended.
Figure 4-12 Drilling a hole and installing an expansion bolt

WARNING
Avoid drilling holes in the utility pipes and/or cables attached to back of the wall.
NOTICE
To prevent dust inhalation or contact with eyes, wear safety goggles and an anti-dust respirator when drilling holes.
Clean up any dust in and around the holes using a vacuum cleaner and measure the distance between holes. If the holes are inaccurately positioned, drill a new set of holes.
Level the head of the expansion sleeve with the concrete wall after removing the bolt, spring washer, and flat washer. Otherwise, the mounting bracket will not be securely installed on the concrete wall.
Step 3 Align the mounting bracket holes with the drilled holes, insert expansion bolts into the holes through the mounting bracket, and then tighten the expansion bolts.

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Figure 4-13 Securing a mounting bracket

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----End
4.5 Installing the SUN2000
Installation Precautions
Before installing the SUN2000, take it out from the packing case and move it to the installation position.
Figure 4-14 Taking out a SUN2000

CAUTION
To prevent device damage and personal injury, keep balance when moving the SUN2000 because it is heavy.

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NOTICE
Move the SUN2000 with the help of other three persons or using an appropriate transportation tool.
Do not use the ports and wiring terminals at the bottom to support any weight of the SUN2000.
When you need to temporarily place the SUN2000 on the ground, use foam, paper, or other protection material to prevent damage to its enclosure.
Procedure
Step 1 If you can mount the SUN2000 onto the mounting bracket directly, go to Step 3 and then Step 5.
Step 2 If you cannot mount the SUN2000 onto the mounting bracket directly, go to Step 3 and then Step 6.
Step 3 Lift the SUN2000 and turn it upright.

CAUTION To prevent device damage and personal injury, keep balance when raising the SUN2000 because it is heavy.
Step 4 Run a lifting sling through the lifting eyes of the SUN2000.

CAUTION
When lifting the SUN2000, keep balance to prevent the SUN2000 impacting with a wall or other objects.

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Figure 4-15 Lifting a SUN2000

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NOTE The figure is for reference only. Step 5 Install the SUN2000 on the mounting bracket.

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Figure 4-16 Mounting the SUN2000 onto a mounting bracket

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Step 6 Tighten the two antitheft screws using a security torx wrench.

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Figure 4-17 Tightening antitheft screws

4 Installation

----End

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5.1 Precautions

DANGER
When exposed to sunlight, the PV arrays supply DC voltage to the SUN2000. Before connecting cables, ensure that the two DC switches on the SUN2000 are OFF. Otherwise, the high voltage of the SUN2000 may result in electric shocks.

WARNING
The equipment damage caused by incorrect cable connections is beyond the warranty scope.
Only certified electrician can perform electrical terminations. Wear proper PPE at all time when terminating cables. To prevent poor cable connection due to overstress, it is recommended that the
cables be bent and reserved, and then connected to the appropriate ports.
NOTE
The cable colors shown in the electrical connection diagrams provided in this chapter are for reference only. Select cables in accordance with local cable specifications (green-andyellow cables are only used for grounding).
5.2 Crimping the OT Terminal

Requirements for the OT Terminal
If a copper cable is used, use a copper wiring terminal.

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If a copper-clad aluminum cable is used, use a copper wiring terminal.
If an aluminum alloy cable is used, use a copper to aluminum adapter terminal or an aluminum wiring terminal with a copper to aluminum adapter washer.

NOTICE
Directly connecting an aluminum wiring terminal to the AC terminal block will cause electro-chemical corrosion and weaken the cable connection reliability.
The copper to aluminum adapter terminal or an aluminum wiring terminal with a copper to aluminum adapter washer must comply with IEC61238-1.
Do not mix up the aluminum and copper sides of the copper to aluminum adapter washer. Ensure that the aluminum side of the washer contacts the aluminum wiring terminal, and the copper side contacts the AC terminal block.
Figure 5-1 Requirements for the OT terminal

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Crimping the OT terminal

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NOTICE
Pay attention not to damage the core wire when stripping a cable. The cavity formed after the conductor crimp strip of the OT terminal is crimped
must wrap the core wires completely. The core wires must contact the OT terminal closely. Wrap the wire crimping area with heat shrink tubing or PVC insulation tape. The following figure uses heat shrink tubing as an example. When using the heat gun, protect devices from being scorched.
Figure 5-2 Crimping the OT Terminal

(1) Cable (4) OT terminal

(2) Core wire (5) Hydraulic pliers

(3) Heat shrink tubing (6) Heat gun

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5.3 Opening the Maintenance Compartment Door
Precautions
CAUTION Never open the host panel cover of the SUN2000. Before opening the maintenance compartment door, ensure that neither of the
AC and DC connections to the SUN2000 is connected. Do not open the maintenance compartment door in rainy or snowy days. If
unavoidable, take protective measures to prevent rain or snow from entering the maintenance compartment. Do not leave extra hardware in the maintenance compartment.
Procedure
Step 1 Partially loosen the two screws on the maintenance compartment door.
Figure 5-3 Loosening screws

NOTE
If the screws on the enclosure door are lost, obtain spare screws from the fitting bag bound to the inductor cover at the bottom of the enclosure.

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Figure 5-4 Position for spare screws

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Step 2 Open the maintenance compartment door and keep it open with the support bar. Figure 5-5 Keeping the door open with a support bar
Step 3 Remove the cover and hang it on the hook of the door. Figure 5-6 Removing a cover

----End

5.4 Installing the AC Output Power Cable

Precautions
A three-phase AC switch needs to be configured outside the AC side of the SUN2000. To ensure that the SUN2000 can safely disconnect from the power grid under abnormal conditions, select an appropriate overcurrent protection device according to local power distribution regulations.

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Model
SUN2000-50KTL-M0 SUN2000-60KTL-M0 SUN2000-65KTL-M0

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Recommended Overcurrent Protection Device Specifications 125 A 125 A 125 A

WARNING
Do not connect loads between the SUN2000 and the AC switch.
The SUN2000 is integrated with a comprehensive residual current monitoring unit (RCMU) to distinguish fault current from residual current. Upon detecting that the residual current exceeds the threshold, the SUN2000 immediately disconnects from the power grid.
NOTE
If an AC switch that can detect residual current is installed outside the SUN2000-50KTLM0, the residual current value to trigger the switch should be greater than 550 mA.
If an AC switch that can detect residual current is installed outside the SUN2000-60KTLM0, the residual current value to trigger the switch should be greater than 660 mA.
If an AC switch that can detect residual current is installed outside the SUN2000-65KTLM0, the residual current value to trigger the switch should be greater than 720 mA.
Wiring Precautions

NOTICE
Ensure that the SUN2000 PE cable is securely connected. Otherwise the repair of the built-in PID would be affected.

The ground point on the enclosure is preferred to connect to the PE cable for the SUN2000.
The ground point in the maintenance compartment is mainly used for connecting to the ground cable included in the multi-core AC power cable.
There are two ground points on the enclosure and you only need either of them.
It is recommended that the ground cable be connected to a nearby ground point. For a system with multiple SUN2000s connected in parallel, connect the ground points of all SUN2000s to ensure equipotential connections to ground cables.

Cable Specifications
For the SUN2000-50KTL/60KTL-M0:

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� If you connect a ground cable to the ground point on the enclosure in a scenario with no neutral wire, you are advised to use a three-core (L1, L2, and L3) outdoor cable.
� If you connect a ground cable to the ground point in the maintenance compartment in a scenario with no neutral wire, you are advised to use a four-core (L1, L2, L3, and PE) outdoor cable.
� If you connect a ground cable to the ground point on the enclosure in a scenario with a neutral wire, you are advised to use a four-core (L1, L2, L3, and N) outdoor cable.
� If you connect a ground cable to the ground point in the maintenance compartment in a scenario with a neutral wire, you are advised to use a five-core (L1, L2, L3, N, and PE) outdoor cable.
For the SUN2000-65KTL-M0:
� If you connect a ground cable to the ground point on the enclosure, you are advised to use a three-core (L1, L2, and L3) outdoor cable.
� If you connect a ground cable to the ground point in the maintenance compartment, you are advised to use a four-core (L1, L2, L3, and PE) outdoor cable.
You need to prepare OT-M10 terminals that match the cables.

Table 5-1 AC Power Cable Specifications

Cable Specifications

Copper-Core Cable

Conductor crosssectional area (mm2)

Range 25�120
Recomm 35 ended value

Copper-Clad Aluminum Cable or Aluminum Alloy Cable
25�120
70

Table 5-2 Ground cable specifications

Cross-Sectional Area S (mm2) of the Cross-Sectional Area SP (mm2) of

AC Power Cable Conductor

the PE Cable Conductor

16 < S 35

SP 16

35 < S

SP S/2

The values in this table are valid only if the PE cable and AC power cable use the same conductor material. If this is not so, the cross-sectional area of the PE cable conductor is to be determined in a manner which produces a conductance equivalent to that which results from the application of this table.

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Installing the PE Cable
Step 1 Crimp an OT terminal. Step 2 Secure the PE cable using the ground screw.
Figure 5-7 Connecting a PE cable

5 Electrical Connections

Step 3 (Optional) To enhance the corrosion resistance of a ground terminal, apply silica gel or paint around the terminal.
----End
Installing the AC Output Power Cable
Step 1 Remove the locking cap from the AC OUTPUT cable gland and then remove the plug.
Step 2 Route the cable through the cable gland.
NOTICE
1. Select appropriate rubber fittings based on the outer diameter of the AC power cable to ensure proper sealing.
2. To avoid damaging the rubber fitting, do not route a cable with a crimped OT terminal directly through the rubber fitting.
3. Adjusting a cable when the thread-lock sealing nut is tightened will shift the rubber fitting, which will affect the Ingress Protection Rating of the device.

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Figure 5-8 Routing a cable

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Step 3 Remove an appropriate length of the jacket and insulation layer from the AC output power cable using a wire stripper.
NOTICE Ensure that the jacket is in the maintenance compartment.
Figure 5-9 Three-core cable (excluding the ground cable and neutral wire)

(A) Core wire

(B) Insulation layer

Figure 5-10 Four-core cable (including the ground cable but excluding the neutral wire)

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Figure 5-11 Four-core cable (excluding the ground cable but including the neutral wire)

Figure 5-12 Five-core cable (including the ground cable and neutral wire)
Step 4 Crimp an OT terminal. Step 5 Land the AC output power cable in the terminal block, and tighten the nuts with a
torque wrench that has an extension rod.
NOTICE Ensure that AC terminations provide firm and solid electrical connections.
Failing to do so may cause SUN2000 malfunction and damage to its terminal block, even starting thermal events. Any SUN2000 damaged due to weak termination will result in revocation of product warranty. When connecting a PE cable, secure the screws using a socket wrench with an extension wrench longer than 200 mm. Sufficient slack should be provided in the PE cable to ensure that the last cable bearing the force is the PE cable when the AC output power cable bears pulling force due to force majeure.

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Figure 5-13 Connecting the AC output power cable for the SUN2000-50KTL/ 60KTL-M0

(A) Three-core cable (excluding the ground cable and neutral wire)

(B) Four-core cable (including the ground cable but excluding the neutral wire)

but excluding the ground cable)

and neutral wire)

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Figure 5-14 Connecting the AC output power cable for the SUN2000-65KTL-M0

(A) Three-core cable (excluding the ground cable)

(B) Four-core cable (including the ground cable)

NOTE
The cable colors shown in figures are for reference only. Select an appropriate cable according to the local standards.
Step 6 Tighten the cable gland. Step 7 Clear debris from the maintenance compartment.

CAUTION Ensure that there are no cable residues, scraps, or conductive dusts in the maintenance compartment.
----End
5.5 Connecting DC input power cables
Precautions

DANGER
Before connecting the DC input power cable, ensure that the DC voltage is within the safe range (lower than 60 V DC) and that the two DC switches on the SUN2000 are OFF. Failing to do so may result in electric shocks.
When the SUN2000 is grid-tied, it is not allowed to work on DC circuit, such as connecting or disconnecting a PV string or a PV module in a PV string. Failing to do so may cause electric shocks or arcing (which may further cause fire).

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WARNING
Ensure that the following conditions are met. Otherwise, the SUN2000 will be damaged, or even become a fire hazard. The open-circuit voltage of each PV string is always lower than or equal to
1100 V DC. The positive and negative terminals of a PV string are connected to
corresponding positive and negative DC input terminals of the SUN2000.

NOTICE
Ensure that the PV module output is well insulated to ground. The PV strings connecting to the same MPPT circuit should contain the same
number of identical PV modules. During the installation of PV strings and SUN2000, the positive or negative
terminals of PV strings may be short-circuited to ground if power cables are not properly installed or routed. In this case, an AC or DC short circuit may occur and damage the SUN2000. The caused equipment damage is beyond the warranty scope.
Terminal Description
The SUN2000 provides 12 DC input terminals, among which terminals 1 to 6 are controlled by DC switch 1 and terminals 7 to 12 are controlled by DC switch 2.
Figure 5-15 DC terminals

Select DC input terminals according to the following rules:
1. Evenly distribute DC input power cables on the DC input terminals controlled by the two DC switches.
2. Maximize the number of connected MPPT circuits.

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Cable Specifications

Cable Type

Conductor Cross-Sectional Area (mm2)

Range

Recommended value

PV cable that meets 4.0�6.0 (12�10 the 1100 V standard AWG)

4.0 (12 AWG)

Cable Outer Diameter (mm)
4.5�7.8

NOTICE
Cables with high rigidity, such as armored cables, are not recommended, because poor contact may be caused by the bending of the cables.
Procedure
Step 1 Prepare positive and negative connectors.
CAUTION
Use the Amphenol Helios H4 PV connectors provided with the SUN2000. If the terminals are lost or damaged, purchase the PV connectors of the same model. The device damaged caused by incompatible PV connectors is not covered under any warranty or service agreement.
NOTICE
The metal contacts supplied with the DC connectors are either cold forming contacts or stamping forming contacts. Choose the crimping tools that fit the metal contact types. Do not mix up the tools.
Crimp the metal cold forming contacts using crimping tool UTXTC0005 (Amphenol, recommended) or H4TC0001 (Amphenol).
Crimp the metal stamping forming contacts using crimping tool H4TC0003 (Amphenol, recommended), H4TC0002 (Amphenol), PV-CZM-22100 (Staubli), or PV-CZM-19100 (Staubli). When choosing PV-CZM-22100 or PV-CZM-19100, do not use the locator. Otherwise, metal contacts would be damaged.

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Figure 5-16 Crimping tool

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(1) Locator
Figure 5-17 Preparing positive and negative connectors (using metal cold forming contacts)

(1) Positive metal contact (cold forming) (3) Positive connector

(2) Negative metal contact (cold forming) (4) Negative connector

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Figure 5-18 Preparing positive and negative connectors (using metal stamping forming contacts)

(1) Positive metal contact (stamping forming) (2) Negative metal contact (stamping forming)

(3) Positive connector

(4) Negative connector

NOTICE After the positive and negative metal terminals snap into place, pull the DC input power cables back to ensure that they are connected securely.
Step 2 Use a multimeter to measure the DC voltage between the positive and negative of the PV string and confirm the string polarity.
NOTICE The DC voltage measurement range of the multimeter must be at least 1100 V.

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Figure 5-19 Measuring voltage

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NOTICE If the voltage is a negative value, the PV string is of reversed polarity. Correct
before connecting this string to the SUN2000. If the voltage is greater than 1100 V, too many PV modules are configured to
the same string. Remove some PV modules.
Step 3 Pull out the blue dustproof plugs from the ends of the DC input connectors.
WARNING Before performing Step 4, ensure that the two DC switches are OFF.
Step 4 Insert the positive and negative connectors into the corresponding positive and negative DC input terminals of the SUN2000 until they snap into place.
NOTICE After the positive and negative connectors snap into place, pull test to the DC input power cable is recommended.

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Figure 5-20 Connecting DC input power cables

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NOTICE
If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off the DC switch immediately or unplug positive and negative connectors. The device may be damaged if you do not follow the instruction. The caused equipment damage is beyond the warranty scope. Wait until the solar irradiance declines and the PV string current reduces to below 0.5 A, and then turn off the two DC switches and remove the positive and negative connectors. Correct the string polarity before reconnecting the string to the SUN2000.
----End
5.6 Installing the Communications Cable
5.6.1 Communication Mode Description
RS485 communication
SmartLogger networking The SUN2000 can connect to the SmartLogger over RS485, and the SmartLogger can be connected to PC. You can query the information about the SUN2000, such as energy yield, alarms, and running status using the SUN2000 app, SmartLogger, embedded WebUI, or the network management software (such as the NetEco) on a PC. � Single-SUN2000 networking

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Figure 5-21 Single-SUN2000 networking

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� Multi-SUN2000 networking If multiple SUN2000s are used, connect all the SUN2000s with an RS485 cable in daisy chain mode.
Figure 5-22 Multi-SUN2000 networking

NOTE
The RS485 communication distance between the SUN2000 at the end of the daisy chain and the SmartLogger cannot exceed 1000 meters.
If multiple SUN2000s need to communicate with one another and are connected to a PC over the SmartLogger1000, a maximum of three daisy chains can be configured.
If multiple SUN2000s need to communicate with one another and are connected to a PC over the SmartLogger2000, a maximum of six daisy chains can be configured.
To ensure the system response speed, it is recommended that the number of devices on each daisy chain be less than 30.
Smart Dongle scenario
NOTE
If the SUN2000 is networked using the SDongleA-03 (4G, Smart Dongle for short), it cannot be connected to the SmartLogger.
If the SUN2000-60KTL-M0 version is SUN2000 V300R001C00SPC116 or later, the RS485_2 port can connect to the DTSU666-H smart power sensor. Due to the power measurement limit of the DTSU666-H, the current should not exceed 250 A.
If the Smart Dongle version is SDongle V100R001C00SPC116 or later, the SUN2000-60KTL-M0 can connect to the DTSU666-H smart power sensor to implement power scheduling. This document describes only the networking diagrams. For details about parameter settings, see Distributed PV Plants Connecting to Huawei Hosting Cloud User Manual (Inverters + SDongleA) or PV Plants Connecting to SmartPVMS User Manual (Inverters + SDongleA).

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Figure 5-23 Smart Dongle networking

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Table 5-3 Limitations

Smart Dongle Type

Limit
Maximum Connected Devices

Connections Inverters

Other Devices

4G1

n 10

10�n

n 2

2�n

Note1:
The maximum number of devices that can be connected to a Smart Dongle is written in the label on the outer package.
If a device is connected to the RS485_2 port on a SUN2000, the device is not counted as a cascaded device.

MBUS (PLC) communication
The MBUS (PLC) technology transmits communication signals over power cables through a communications board.
NOTE
The built-in MBUS (PLC) module in the SUN2000 does not need to be connected with cables.
Selecting a Communication Mode
The RS485 and MBUS (PLC) communication modes are mutually exclusive. If MBUS (PLC) is used, do not connect the RS485 cable. Instead, set MBUS
Communication to Enable on the SUN2000 app.

NOTICE
The MBUS (PLC) communication is applicable to medium-voltage grid-tied scenarios and non-low-voltage public grid-tied scenarios (industrial environment).

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If RS485 is selected, you are advised to set MBUS Communication to Disable on the SUN2000 app.
5.6.2 Installing the RS485 Communications Cable

Selecting an Installation Mode
An RS485 communications cable can be connected in two ways: Terminal block connection
Recommended: Communications cable with a conductor cross-sectional area of 1 mm2 and a cable outer diameter of 14�18 mm. RJ45 network port connection Recommended: CAT 5E outdoor shielded network cable with an outer diameter less than 9 mm and internal resistance no greater than 1.5 ohms/10 m, with a shielded RJ45 connector.
NOTE
Select only one installation mode in practice. Terminal block connection is recommended.
COM1, COM2, and COM3 are holes for communications and power cables of the tracking system.

NOTICE When laying out communications cables, separate them from power cables to avoid strong signal interference sources.
5.6.2.1 Terminal Block Connection Terminal Block Port Definitions
Figure 5-24 shows an RS485 terminal block. Figure 5-24 Terminal block

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Table 5-4 Port definitions of the RS485 terminal block

RS Port Function 48 Defini 5_1 tion

Description

RS48 5_2

1 RS485 RS485A,

An RS485 port 5

A IN differential used for

signal+

connecting an

inverter or

SmartLogger.

Port

Function

Definitio

RS485A IN

RS485A, differential signal+

2 RS485 RS485A, A OUT differential signal+
3 RS485 RS485B, B IN differential signal�

RS485A RS485A,

OUT

differential

signal+

RS485B RS485B,

differential

signal�

4 RS485 RS485B, B OUT differential signal�

RS485B RS485B,

OUT

differential

signal�

Description
An RS485 port used for connecting a tracking system or DTSU666-H.
-
An RS485 port used for connecting a tracking system or DTSU666-H.
-

NOTE
The cable connection method for the RS485_1 terminal block is the same as that for the RS485_2 terminal block. The RS485_1 terminal block is used as an example in this document.
Connecting Cables to the Terminal Block
Step 1 Remove an appropriate length of the jacket and core wire insulation layer from the communications cable using a wire stripper.
Figure 5-25 Stripping an RS485 communications cable

Step 2 Route the communications cable through the cable gland.

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Figure 5-26 Routing a cable

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Step 3 Remove the cable terminal base from the terminal block, and connect the communications cable to the terminal base.
Figure 5-27 Connecting cables to a terminal base

(1) RS485A IN (3) RS485B IN

(2) RS485A OUT (4) RS485B OUT

Step 4 Land the cables in the terminal block, and bond the shield layer to the ground point. NOTE
When connecting the shielded cable, crimp the OT terminal if required.

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Figure 5-28 Connecting communications cables

5 Electrical Connections

Step 5 Bundle communications cables after connecting them. NOTE
Tie the communication cables with the cables on internal side of the maintenance compartment.
Figure 5-29 Bundling communications cables

Step 6 Tighten the thread-lock sealing nut and seal the cable gland. ----End
5.6.2.2 Connecting Cables to the RJ45 Network Port
RJ45 Connector Pin Definitions
Figure 5-30 shows an RJ45 connector.

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Figure 5-30 RJ45 connector

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Table 5-5 lists the RJ45 connector pin definitions.

Table 5-5 RJ45 connector pin definitions

Color

Function

White-and-orange RS485A, differential signal+

Orange

RS485B, differential signal�

White-and-green

N/A

Blue

RS485A, differential signal+

White-and-blue

RS485B, differential signal�

Green

N/A

White-and-brown

N/A

Brown

N/A

Connecting Cables to the RJ45 Network Port
Step 1 Prepare an RJ45 connector. Figure 5-31 Preparing an RJ45 connector

Step 2 Route the communications cable through the cable gland.

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Figure 5-32 Routing a cable

5 Electrical Connections

Step 3 Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment.
Figure 5-33 Connecting communications cables

Step 4 Bundle communications cables after connecting them. NOTE
Tie the communication cables with the cables on internal side of the maintenance compartment.

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Figure 5-34 Bundling communications cables

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Step 5 Tighten the thread-lock sealing nut and seal the cable gland. ----End
5.6.3 (Optional) Installing the Solar Tracker Power Cable
The solar tracker power cable can be installed on the SUN2000-65KTL-M0 only.
Precautions

NOTICE
A switch-disconnector-fuse or fuse-switch-disconnector with a voltage of no less than 500 V, current of 16 A, and protection type of gM needs to be installed between the SUN2000 and the tracker controller for protection.
The cable between the wiring terminal on the power cable and the switchdisconnector-fuse or fuse-switch-disconnector should be less than or equal to 2.5 meters.
Cable Specifications
Recommended: dual-layer three-core outdoor copper cable with a conductor cross-sectional area of 10 mm2.

WARNING Do not place flammable materials around the cable.

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Procedure
Step 1 Remove an appropriate length of the jacket and insulation layer from the tracking power cable using a wire stripper. (Ensure that the jacket is in the maintenance compartment.)
Figure 5-35 Stripping a cable

(A) Core wire

(B) Insulation layer

Step 2 Remove the shielding cover from wiring terminals.

Figure 5-36 Removing a shielding cover

Step 3 Route the cable through the cable gland. Figure 5-37 Routing a cable

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Step 4 Connect the solar tracker power cable.
Figure 5-38 Connecting a solar tracker power cable

5 Electrical Connections

Step 5 Install the shielding cover on wiring terminals. Figure 5-39 Installing a shielding cover

Step 6 Bind the solar tracker power cable. Figure 5-40 Binding a solar tracker power cable

Step 7 Tighten the thread-lock sealing nut and seal the cable gland. ----End

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5.7 Closing the Maintenance Compartment Door
Procedure
Step 1 Install the AC terminal cover. Figure 5-41 Installing a cover

Step 2 Retrieve the support bar. Figure 5-42 Retrieving a support bar
Step 3 Close the maintenance compartment door and tighten the two screws on the door. Figure 5-43 Tightening screws

----End

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6 Commissioning
6.1 Checking Before Power-On
1. Check that the SUN2000 is installed correctly and securely. 2. Check that the DC switch and downstream AC output switch are OFF. 3. Check that all ground cables are connected correctly and securely. 4. Check that all AC output power cables are connected correctly and securely,
without open circuits or short circuits. 5. Check that all DC input power cables are connected correctly and securely,
without open circuits or short circuits. 6. Check that the communications cable is connected correctly and securely. 7. Check that all used cable glands at the bottom of the enclosure are sealed,
and that the thread-lock sealing nut is tightened. 8. Check that the AC terminal cover is reinstalled. 9. Check that the maintenance compartment interior is clean and tidy, without
foreign matter. 10. Check that the maintenance compartment door is closed and the door screws
are tightened. 11. Check that unused DC input terminals are sealed. 12. Check that unused USB port is plugged with watertight cap. 13. Check that unused cable glands are plugged and the thread-lock sealing nuts
are tightened.

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6.2 Powering On the SUN2000
Precautions
NOTICE Before turning on the AC switch between the SUN2000 and the power grid, use
a multimeter to check that the AC voltage is within the specified range. If the solar inverter has not been running for more than half a year after being
mounted, it must be checked and tested by professionals before being put into operation.
Procedure
Step 1 Turn on the AC switch between the SUN2000 and the power grid.
NOTICE If you perform Step 2 before Step 1, the SUN2000 reports a fault about abnormal shutdown. You can start the SUN2000 only after the fault is automatically rectified.
Step 2 Turn on the DC switch at the bottom of the SUN2000. Step 3 Connect a mobile phone that runs the SUN2000 app to the inverter using a
Bluetooth module, a WLAN module, or a USB data cable.
Figure 6-1 Connection mode

NOTE
Purchase a Bluetooth module or a WLAN module bundled with the inverter. A Bluetooth module or a WLAN module purchased from any other source may not support communication between the inverter and the SUN2000 app.
Use the USB data cable delivered with the mobile phone. The port type is USB 2.0. The screen snapshots in this document correspond to app 3.2.00.001 (Android).

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Figure 6-2 Login screen

6 Commissioning

Figure 6-3 Selecting a connection mode

Step 4 Tap the user name area on the SUN2000 app to switch between Common User, Advanced User, and Special User.

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Figure 6-4 Switching the user

6 Commissioning

NOTE
The login password is the same as that for the SUN2000 connected to the app and is used only for the SUN2000 to connect to the app.
When the WLAN connection is used, the initial name of the WLAN hotspot is AdapterWLAN module SN, and the initial password is Changeme.
The initial passwords for Common User, Advanced User, and Special User are all 00000a.
Use the initial password upon first power-on and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.
During login, if five consecutive invalid password attempts are made (the interval between two consecutive attempts is less than 2 minutes), the account will be locked for 10 minutes. The password should consist of 6 characters.
Step 5 Enter the password and tap Log In.
Step 6 After successful login, the quick settings screen or main menu screen is displayed.
NOTE
If you log in to the SUN2000 app after the device connects to the app for the first time or factory defaults are restored, the quick settings screen will be displayed, on which you can set basic parameters. After the settings take effect, you can enter the main menu screen and modify the parameters on the Settings screen.If the AC switch between the inverter and the power grid is turned on but all DC switches on the inverter are not in the ON position, Grid code is not displayed on the quick settings screen.
You are advised to log in to the Quick Settings screen as Advanced User for parameter settings.
Set the correct grid code based on the application region and scenario of the SUN2000.

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Figure 6-5 Quick Settings screen (advanced user)

6 Commissioning

NOTE
Set the grid code that applies to the country or region where the PV plant is located and the SUN2000 model.
Set user parameters based on the current date and time.
Set Baud rate, Protocol, and Address based on site requirements. Baud rate can be set to 4800, 9600, or 19200. Protocol can be set to MODBUS RTU, and Address can be set to any value in the range of 1 to 247.
When multiple SUN2000s communicate with the SmartLogger over RS485, the RS485 addresses for all the SUN2000s on each RS485 route must be within the address range set on the SmartLogger and cannot be duplicate. Otherwise, the communication will fail. In addition, the baud rates of all the SUN2000s on each RS485 route must be consistent with the SmartLogger baud rate.

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Figure 6-6 Function menu screen

6 Commissioning

----End
6.3 Powering Off the System
Precautions

WARNING
If two SUN2000s share the same AC switch on the AC side, power off the two SUN2000s.
After the SUN2000 powers off, the remaining electricity and heat may still cause electric shocks and body burns. Therefore, put on personal protective equipment (PPE) and begin servicing the SUN2000 fifteen minutes after poweroff.

Procedure
Step 1 Run a shutdown command on the SUN2000 app, SmartLogger, or NMS.
For details, see the FusionSolar APP and SUN2000 APP User Manual, SmartLogger User Manual, or iManager NetEco 1000S User Manual.

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Step 2 Turn off the AC switch between the SUN2000 and the power grid. Step 3 Turn off both DC switches.
----End

6.4 Power-Off for Troubleshooting

Context

To prevent personal injury and equipment damage, perform the following procedure to power off the solar inverter for troubleshooting or replacement.

CAUTION
When a solar inverter is faulty, try to avoid standing in front of the solar inverter.
Do not operate the DC switch on the solar inverter before you finish Step 3 to Step 5.
If the AC switch between the solar inverter and the power grid has automatically disconnected, do not turn on the switch before the fault is rectified.
Before power-off for troubleshooting, do not touch the energized components of the solar inverter. Otherwise, electric shocks or arcing may occur.

Procedure
Step 1 Wear proper personal protective equipment (PPE).
Step 2 If the solar inverter is not shut down due to a fault, send a shutdown command on the app, SmartLogger, or management system. If the solar inverter has shut down due to a fault, go to the next step.
Step 3 Turn off the AC switch between the solar inverter and the power grid.
Step 4 Measure the DC current of each PV input string using a clamp meter that is set to the DC position. If the current is less than or equal to 0.5 A, go to the next step. If the current is higher than 0.5 A, wait until the solar irradiance decreases and the PV string current decreases below 0.5 A at night, and then go to the next step.
Step 5 Open the maintenance compartment door, install a support bar, and use a multimeter to measure the voltage between the AC terminal block and the ground. Ensure that the AC side of the solar inverter is disconnected.
Step 6 Turn off all DC input switches of the solar inverter.
Step 7 Wait for 15 minutes and troubleshoot or repair the inverter.

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WARNING
Do not open the host panel for maintenance if the solar inverter is emitting odor or smoke, or has obvious exceptions.
If the solar inverter does not emit odor or smoke and is intact, repair or restart it based on the alarm handling suggestions. Do not stand in front of the solar inverter during the restart.
----End

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7.1 Operations with a USB Flash Drive
USB flash drives of SanDisk, Netac, or Kingston are supported. Other USB flash drives may not be identified because they are not tested for compatibility.
NOTE Delete the script file immediately after use to reduce information disclosure risks.
7.1.1 Exporting Configurations

Procedure

1. Click Local maintenance script on the app to generate a boot script file, see the FusionSolar APP and SUN2000 APP User Manual.
2. Import the boot script file to a PC.
(Optional) The boot script file can be opened as a .txt file.

Figure 7-1 Boot script file

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No. Meaning

Remarks

User name Advanced user: engineer

Special user: admin

Ciphertext The ciphertext varies depending on the login

password of the SUN2000 app or entering the

Device Commissioning screen on the FusionSolar

app.

Script

validity

period

Command Different command settings can produce different

commands.

Configuration export command: export param.

Configuration import command: import param.

Data export command: export log.

Upgrade command: upgrade.

3. Import the boot script file to the root directory of a USB flash drive.
4. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

NOTICE
Ensure that the ciphertext in the boot script matches the login password for logging in to the SUN2000 app or entering the Device Commissioning screen on the FusionSolar app. Otherwise, the user account will be locked for 10 minutes after the USB flash drive is inserted for five consecutive times.

Table 7-1 LED indicator description

LED Indicator

Status

Green off

Blinking green slowly

Blinking green fast

Steady green

Meaning
There is no operation with a USB flash drive.
There is an operation with a USB flash drive.
An operation with a USB flash drive has failed.
An operation with a USB flash drive is successful.

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5. Insert the USB flash drive into a computer and check the exported data. NOTE
When the configuration export is complete, the boot script file and exported file are in the root directory of the USB flash drive.
7.1.2 Importing Configurations

Prerequisites
A complete configuration file has been exported.

Procedure

1. Click Local maintenance script on the app to generate a boot script file, see the FusionSolar APP and SUN2000 APP User Manual.
2. Import the boot script file to a PC.
3. Replace the exported boot script file in the root directory of the USB flash drive with the imported one.

NOTICE
Replace the boot script file only and keep the exported files.
4. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

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Table 7-2 LED indicator description

LED Indicator

Status

Green off

Blinking green slowly

Blinking green fast

Steady green

Meaning
There is no operation with a USB flash drive.
There is an operation with a USB flash drive.
An operation with a USB flash drive has failed.
An operation with a USB flash drive is successful.

7.1.3 Exporting Data

Procedure

1. Click Local maintenance script on the app to generate a boot script file, see the FusionSolar APP and SUN2000 APP User Manual.
2. Import the boot script file to the root directory of a USB flash drive.
3. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

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Table 7-3 LED indicator description

LED Indicator

Status

Green off

Blinking green slowly

Blinking green fast

Steady green

Meaning
There is no operation with a USB flash drive.
There is an operation with a USB flash drive.
An operation with a USB flash drive has failed.
An operation with a USB flash drive is successful.

7.1.4 Upgrading

Procedure

1. Download the required software upgrade package from the technical support website.
2. Decompress the upgrade package.
NOTE
If the login password for logging in to the SUN2000 app or entering the Device Commissioning screen on the FusionSolar app is the initial password, you do not need to perform steps 3 to 5. If not, perform steps 3 to 7.
3. Click Local maintenance script on the app to generate a boot script file, see the FusionSolar APP and SUN2000 APP User Manual.
4. Import the boot script file to a PC.
5. Replace the boot script file (sun_lmt_mgr_cmd.emap) in the upgrade package with the one generated by the app.
6. Copy the extracted files to the root directory of the USB flash drive.
7. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

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Table 7-4 LED indicator description

LED Indicator

Status

Green off

Blinking green slowly

Blinking green fast

Steady green

Meaning
There is no operation with a USB flash drive.
There is an operation with a USB flash drive.
An operation with a USB flash drive has failed.
An operation with a USB flash drive is successful.

8. The system automatically restarts when the upgrade is completed. All LED indicators are off during the restart. After the restart, the indicator is blinking green slowly for 1 minute and then it becomes steady green, which indicates that the upgrade is successful.
7.2 Operations with the SUN2000 App

NOTICE
When you use the SUN2000 app to set parameters for the SUN2000, setting items on certain parameter setting screens are not displayed if the AC switch between the SUN2000 and the power grid is turned on but both of DC SWITCH on the SUN2000 are not in the ON position. Switch both of DC SWITCH to the ON position and then reset relevant parameters again.
If you change the grid code, some parameters may be restored to factory defaults. After the grid code is changed, check whether the previously set parameters are affected.
Delivering a reset, shutdown, or upgrade command to the solar inverters may cause power grid connection failure, which affects the energy yield.
Only professionals are allowed to set the grid parameters, protection parameters, feature parameters, and power adjustment parameters of the solar inverters. If the grid parameters, protection parameters, and feature parameters are incorrectly set, the solar inverters may not connect to the power grid. If the power adjustment parameters are incorrectly set, the solar inverters may not connect to the power grid as required. In these cases, the energy yield will be affected.

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NOTE
The app screenshots in this chapter are for the SUN2000-60KTL-M0. Configurable parameters vary depending on the grid code. The actual display prevails. The parameter names, value ranges, and default values are subject to change. The
actual display prevails.
7.2.1 Operations Related to the Advanced User

If you log in to the app as Advanced User, you can set grid parameters, protection parameters, and feature parameters for the SUN2000.
7.2.1.1 Setting Grid Parameters
Procedure
Step 1 Tap Function Menu > Settings > Grid Parameters to access the parameters setting screen.
Figure 7-2 Grid parameters (advanced user)

----End

Parameter List

No.

Parameter

Grid code

Isolation

Description
Set this parameter based on the grid code of the country or region where the SUN2000 is used and the SUN2000 application scenario.
Specifies the working mode of the SUN2000 according to the grounding status at the DC side and the connection status to the grid.

7.2.1.2 Setting Protect Parameters

Procedure
Step 1 Choose Function Menu > Settings > Protect Parameters to access the settings screen.

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Figure 7-3 Protect parameters (advanced user)

7 Man-Machine Interactions

----End
Parameter List
Parameter Insulation resistance protection threshold (M)

Description
To ensure device safety, the SUN2000 detects the insulation resistance between the input side and the ground when it starts a self-check. If the detected value is less than the preset value, the SUN2000 does not export power to the power grid.

7.2.1.3 Setting Feature Parameters
Procedure
Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen.
Figure 7-4 Feature parameters (advanced user)

----End

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Parameter List
Parameter MPPT multi-peak scanning
MPPT multi-peak scan interval (min) RCD enhancing
Reactive power output at night
PID protection at night
Power quality optimization mode

Description

Remarks

When the SUN2000 is used in scenarios where PV strings are obviously shaded, enable this function. Then the SUN2000 will perform MPPT scanning at regular intervals to locate the maximum power.

The scanning interval is set by MPPT multi-peak scanning interval.

Specifies the MPPT multi-peak scanning interval.

This parameter is displayed only when MPPT multi-peak scanning is set to Enable.

RCD refers to the residual current of N/A the SUN2000 to the ground. To ensure device security and personal safety, RCD should comply with the standard. If an AC switch with a residual current detection function is installed outside the SUN2000, this function should be enabled to reduce the residual current generated during SUN2000 running, thereby preventing the AC switch from misoperations.

In some specific application scenarios, a power grid company requires that the SUN2000 can perform reactive power compensation at night to ensure that the power factor of the local power grid meets requirements.

This parameter is configurable only when Isolation is set to Input ungrounded, with a transformer.

When PID protection at night is N/A set to Enable, the SUN2000 will shut down automatically if it detects abnormality in PID voltage compensation during the reactive power compensation at night.
When PID protection at night is set to Disable, the SUN2000 will operate in grid-tied mode if it detects abnormality in PID voltage compensation during the reactive power compensation at night.

If Power quality optimization mode N/A is set to Enable, the inverter output current harmonics will be optimized.

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Parameter

Description

Remarks

PV module type

This parameter is used to set different types of PV modules and the shutdown time of the concentration PV modules. If the concentration PV modules are shaded, the power drops drastically to 0 and the SUN2000 shuts down. The energy yield would be affected since it takes too long for the power to resume and SUN2000 to restart. The parameter does not need to be set for crystalline silicon and filmy PV modules.

If PV module type is set to Crystalline silicon or Film, the SUN2000 automatically detects the power of PV modules when they are shaded and shuts down if the power is too low.
When the concentration PV modules are used:
� If PV module type is set to CPV 1, the inverter can quickly restart in 60 minutes when the input power of PV modules drops drastically due to shading.
� If PV module type is set to CPV 2, the inverter can quickly restart in 10 minutes when the input power of PV modules drops drastically due to shading.

Built-in PID compensation direction

The PID effect may result in the power attenuation of PV modules, which is mainly caused by the DC voltage between PV modules and the ground. Enabling this setting lowers the DC voltage between PV modules and the ground by reducing the impedance on the input side to the ground.

This parameter is displayed only if PV module type is set to Crystalline silicon.

PID running mode

Specifies the operation mode of the SUN2000 built-in PID.

This parameter is displayed only for the models that support Builtin PID repair.

PID nighttime offgrid repair

Specifies whether to enable the PID nighttime off-grid repair.

This parameter is displayed only if PID running mode is set to Repair.

PID daytime off-grid Specifies whether to enable the PID

repair

daytime off-grid repair.

This parameter is displayed only if PID running mode is set to Repair.

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Parameter

Description

Remarks

String connection mode

Specifies the connection mode of PV N/A strings.
When the PV strings connect to the inverter separately (fully separate connection), there is no need to set this parameter. The inverter can automatically detect the connection mode of the PV strings.
When the PV strings connect to one another in parallel outside the inverter and then connect to the inverter independently (fully parallel connection), set this parameter to All PV strings connected.

Communication interrupt shutdown

The standards of certain countries and regions require that the SUN2000 must shut down after the communication is interrupted for a certain time.

If Communication interrupt shutdown is set to Enable and the SUN2000 communication has been interrupted for a specified time (set by Communication interruption duration), the SUN2000 will automatically shut down.

Communication resumed startup

If this parameter is enabled, the SUN2000 automatically starts after communication recovers. If this parameter is disabled, the SUN2000 needs to be started manually after communication recovers.

This parameter is displayed when Automatic OFF due to communication interrupted is set to Enable.

Communication interruption duration (min)

Specifies the duration for

N/A

determining communication

interruption, and is used for

automatic shutdown for protection in

case of communication interruption.

Soft start/boot time Specifies the duration for the power N/A

(s)

to gradually increase when the

SUN2000 starts.

Hibernate at night

The SUN2000 monitors PV strings at N/A night. If Hibernate at night is set to Enable, the monitoring function of the SUN2000 will hibernate at night, reducing power consumption.

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Parameter MBUS communication
Upgrade delay
String monitor
String detection reference asymmetric coefficient String detection starting power percentage (%)
Tracker controller Duration for determining shorttime grid disconnection (ms)

Description

Remarks

For SUN2000 models that support

N/A

both RS485 and MBUS

communication, when RS485

communication is used, you are

advised to set MBUS

communication to Disable to reduce

power consumption.

Upgrade delay is mainly used in the upgrade scenarios where the PV power supply is disconnected at night due to no sunlight or unstable at dawn or dusk due to poor sunlight.

After the SUN2000 upgrade starts, if Upgrade delay is set to Enable, the upgrade package is loaded first. After the PV power supply recovers and the activation conditions are met, the SUN2000 automatically activates the upgrade.

The SUN2000 monitors PV strings in real time. If any PV string is abnormal (such as the PV string is shaded or the energy yield decreases), the SUN2000 generates an alarm to remind maintenance personnel to maintain the PV string in a timely manner.

If PV strings are easily shaded, you are advised to set String monitor to Disable to prevent false alarms.

Specifies the threshold for determining PV string exception. The false alarms caused by fixed shadow shading can be controlled by changing this parameter.
Specifies the threshold for starting PV string exception detection. The false alarms caused by fixed shadow shading can be controlled by changing this parameter.

This parameter is displayed when String monitor is set to Enable.

Selects a controller vendor.

N/A

The standards of certain countries

N/A

and regions require that the

SUN2000 should not disconnect from

the power grid if the power grid

experiences a short-time failure. The

SUN2000 output power should be

recovered immediately after the fault

is rectified.

7.2.2 Operations Related to the Special User

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If you log in to the app as Special User, you can set grid parameters, protection parameters, feature parameters, and power adjustment parameters for the SUN2000.

7.2.2.1 Setting Grid Parameters

Procedure
Step 1 Choose Function Menu > Settings > Grid Parameters to access the settings screen.

Figure 7-5 Grid parameters (special user)

----End

Parameter List

No.

Parameter

Grid code

Output mode

Description
Set this parameter based on the grid code of the country or region where the SUN2000 is used and the SUN2000 application scenario.
Indicates whether the SUN2000 output has a neutral wire.

Remarks N/A
Supported by the SUN2000-50KTL-M0 and SUN2000-60KTLM0 only.

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No.

Parameter

Description

Remarks

PQ mode

If this parameter is set to PQ mode 1, the maximum active power equals the maximum apparent power. If it is set to PQ mode 2, the maximum active power equals the rated active power.

Auto start upon Specifies whether to allow the SUN2000 N/A

grid recovery

to automatically start after the power

grid recovers.

Grid connection Specifies the waiting time for SUN2000 N/A

duration after

restart after the power grid recovers.

power grid

recovery

Grid reconnection The standards of certain countries and N/A

voltage upper

regions require that the SUN2000 must

limit

not export power to the power grid

again when the grid voltage exceeds the

value of Grid reconnection voltage

upper limit after the SUN2000 shuts

down due to a fault.

Grid reconnection The standards of certain countries and N/A

voltage lower limit regions require that the SUN2000 must

not export power to the power grid

again when the grid voltage is below the

value of Grid reconnection voltage

lower limit after the SUN2000 shuts

down due to a fault.

Grid reconnection The standards of certain countries and N/A

frequency upper regions require that the SUN2000 must

limit

not export power to the power grid

again when the grid frequency exceeds

the value of Grid reconnection

frequency upper limit after the

SUN2000 shuts down due to a fault.

Grid reconnection The standards of certain countries and N/A

frequency lower regions require that the SUN2000 must

limit

not export power to the power grid

again when the grid frequency is below

the value of Grid reconnection

frequency lower limit after the

SUN2000 shuts down due to a fault.

Reactive power

Specifies the voltage threshold for

N/A

compensation

triggering reactive power compensation

(cos-P) trigger based on the cos-P curve.

voltage

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No.

Parameter

Description

Remarks

Reactive power

Specifies the voltage threshold for

N/A

compensation

exiting reactive power compensation

(cos-P) exit

based on the cos-P curve.

voltage

7.2.2.2 Setting Protection Parameters
Procedure
Step 1 Choose Function Menu > Settings > Protection Parameters to access the settings screen.
Figure 7-6 Protection parameters (special user)

----End

Parameter List

NOTE

Vn represents the rated voltage and Fn represents the rated frequency.

No.

Parameter

Description

Unbalance voltage protection

Specifies the SUN2000 protection threshold

in the case of unbalanced power grid

voltage.

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No.

Parameter

Description

Phase angle offset protection

The standards of certain countries and

regions require that the SUN2000 needs to

be protected when the three-phase angle

offset of the power grid exceeds a certain

value.

10 minute OV protection

Specifies the 10-minute overvoltage

protection threshold.

10 minute OV protection time

Specifies the 10-minute overvoltage

protection duration.

Level-1 OV protection

Specifies the level-1 overvoltage protection threshold.

Level-1 OV protection time

Specifies the level-1 overvoltage protection

duration.

Level-2 OV protection

Specifies the level-2 overvoltage protection threshold.

Level-2 OV protection time

Specifies the level-2 overvoltage protection

duration.

Level-1 UV protection

Specifies the level-1 undervoltage protection threshold.

Level-1 UV protection time

Specifies the level-1 undervoltage

protection duration.

Level-2 UV protection

Specifies the level-2 undervoltage protection threshold.

Level-2 UV protection time

Specifies the level-2 undervoltage

protection duration.

Level-1 OF protection

Specifies the level-1 overfrequency protection threshold.

Level-1 OF protection time

Specifies the level-1 overfrequency

protection duration.

Level-2 OF protection

Specifies the level-2 overfrequency protection threshold.

Level-2 OF protection time

Specifies the level-2 overfrequency

protection duration.

Level-1 UF protection

Specifies the level-1 underfrequency protection threshold.

Level-1 UF protection time

Specifies the level-1 underfrequency

protection duration.

Level-2 UF protection

Specifies the level-2 underfrequency protection threshold.

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Parameter

Level-2 UF protection time

7 Man-Machine Interactions
Description Specifies the level-2 underfrequency protection duration.

7.2.2.3 Setting Feature Parameters
Procedure
Step 1 Choose Function Menu > Settings > Feature Parameters to access the settings screen.
Figure 7-7 Feature parameters (special user)

----End

Parameter List
Parameter
Automatic OFF due to communication interrupted

Description
The standards of certain countries and regions require that the inverter must shut down after the communication is interrupted for a certain time.

Remarks
If Automatic OFF due to communication interrupted is set to Enable and the inverter communication is interrupted for a specified time (set by Communication interruption duration), the inverter will automatically shut down.

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Parameter

Description

Remarks

Automatic ON due to communication resumed

If this parameter is set to Enable, the inverter automatically starts after communication recovers. If this parameter is set to Disable, the inverter needs to be started manually after communication recovers.

This parameter is displayed when Automatic OFF due to communication interrupted is set to Enable.

Communication interruption duration (min)

Specifies the duration for determining N/A communication interruption. Used for automatic shutdown for protection in case of communication interruption.

Soft start/boot time Specifies the duration for the power to N/A

(s)

gradually increase when the inverter

starts.

LVRT

When the power grid voltage is

N/A

abnormally low for a short time, the

SUN2000 cannot disconnect from the

power grid immediately and has to

work for some time. This is called LVRT.

LVRT threshold (V)

Specifies the threshold for triggering LVRT.
The threshold settings should meet the local grid standard.

Vn represents the rated voltage.

LVRT undervoltage Specifies whether to shield the

N/A

protection shield

undervoltage protection function

during LVRT.

LVRT reactive power compensation power factor

During LVRT, the SUN2000 needs to generate reactive power to support the power grid. This parameter is used to set the reactive power generated by the SUN2000.

For example, if you set LVRT reactive power compensation power factor to 2, the reactive current generated by the SUN2000 is 20% of the rated current when the AC voltage drops by 10% during LVRT.

HVRT

When the power grid voltage is

N/A

abnormally high for a short time, the

SUN2000 cannot disconnect from the

power grid immediately and has to

work for some time. This is called high

voltage ride-through (HVRT).

Threshold for triggering HVRT (V)

Specifies the threshold for triggering HVRT. The threshold settings should meet the local grid standard.

This parameter is displayed when HVRT is set to Enable.

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Parameter

Description

Remarks

HVRT compensation During HVRT, the inverter needs to

N/A

power factor of

generate reactive power to support the

reactive power in

power grid. This parameter is used to

positive sequence set the reactive power generated by

the inverter.

VRT exit hysteresis threshold

Specifies the LVRT/HVRT recovery threshold.

This parameter is displayed when LVRT or HVRT is set to Enable.
LVRT recovery threshold = Threshold for triggering LVRT + VRT exit hysteresis threshold
HVRT recovery threshold = Threshold for triggering HVRT - VRT exit hysteresis threshold

Grid voltage protection shield during VRT

Specifies whether to shield the undervoltage protection function during LVRT or HVRT.

This parameter is displayed when LVRT or HVRT is set to Enable.

Active islanding

Specifies whether to enable the active N/A islanding protection function.

Soft start time after Specifies the time for the power to

N/A

grid failure (s)

gradually increase when the SUN2000

restarts after the power grid recovers.

7.2.2.4 Setting Power Adjustment Parameters
Procedure
Step 1 Choose Function Menu > Settings > Power Adjustment to access the settings screen.

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Figure 7-8 Power adjustment parameters (special user)

----End

Parameter List

Table 7-5 Parameter description

No.

Parameter

Description

Remarks

Remote power

If this parameter is set to Enable, N/A

schedule

the SUN2000 responds to the

remote power scheduling

instruction. If this parameter is set

to Disable, the SUN2000 does not

respond to the remote power

scheduling instruction.

Schedule

Specifies the duration within

If the value is less than 60

instruction valid which the scheduling instruction is seconds, the scheduling

duration

valid.

instruction is valid

permanently.

Maximum active Specifies the output upper

Pmax_limit is the upper

power

threshold for the maximum active limit of the maximum active

power to adapt to various market power.

requirements.

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No.

Parameter

Description

Remarks

Shutdown at 0% If this parameter is set to Enable, N/A

power limit

the SUN2000 shuts down after

receiving the 0% power limit

command. If this parameter is set

to Disable, the SUN2000 does not

shut down after receiving the 0%

power limit command.

Active power

Adjusts the change speed of the Adjust the active power

change gradient SUN2000 active power.

based on the percentage of

the rated apparent power.

Fixed active power Adjusts the active power output Pmax_limit is the upper

derated

of the SUN2000 to a fixed value. limit of the maximum active

power.

Active power

Adjusts the active power output If this parameter is set to

percentage

of the SUN2000 to a percentage. 100, the SUN2000 delivers

derating

power output based on the

maximum output power.

Power factor

Adjusts the SUN2000 power factor.

N/A

Reactive power

Adjusts the SUN2000 output

compensation

reactive power.

N/A

(Q/S)

Reactive power

If Reactive power output at

compensation at night is set to Enable, no PV

night (Q/S)

input exists, and no remote scheduling instruction is delivered,

N/A

the SUN2000 responds to this

command.

Trigger frequency The standards of certain countries

of over frequency and regions require that the

derating

output active power of the

SUN2000 be derated when the grid frequency exceeds a certain value.

Fn represents the rated frequency.

Quit frequency of Specifies the frequency threshold

over frequency

for exiting overfrequency derating.

derating

Recovery gradient Specifies the power recovery

N/A

of over frequency gradient for overfrequency

derating

derating.

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No.

Parameter

Description

Remarks

Overfrequency

If this parameter is enabled, the N/A

derating

active power of the inverter will

be derated according to a certain

slope when the grid frequency

exceeds the value that triggers

overfrequency derating.

Cutoff frequency Specifies the frequency threshold N/A

of overfrequency for cutting off overfrequency

derating

derating.

Cutoff power of Specifies the power threshold for N/A

overfrequency

cutting off overfrequency

derating

derating.

7.3 (Optional) Installing a Smart Dongle
Communication parameters have been set for the inverter.
NOTICE
If you choose a Smart Dongle shipped with a SIM card, skip this step. If your Smart Dongle is not shipped with a SIM card, you need to have a
standard SIM card (size: 25 mm x 15 mm; capacity: 64 KB). When installing the SIM card, determine its installation direction based on the
silk screen and arrow on the card slot. Press the SIM card in place to lock it, indicating that the SIM card is correctly
installed. When removing the SIM card, push it inwards to eject it. When reinstalling the cover of the Smart Dongle, ensure that the buckle
springs back in place.

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Figure 7-9 Installing an SDongleA-03

7 Man-Machine Interactions

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8 Maintenance

8.1 Routine Maintenance
To ensure that the SUN2000 can operate properly for a long term, you are advised to perform routine maintenance on it as described in this chapter.

CAUTION
Before cleaning the system and maintaining the cable connections and grounding reliability, power off the system and ensure that the two DC switches on the SUN2000 are OFF.
If you need to open the maintenance compartment door on rainy or snowy days, take protective measures to prevent rain and snow entering the maintenance compartment. If it is impossible to take protective measures, do not open the maintenance compartment door on rainy or snowy days.

Table 8-1 Maintenance checklist

Item

Check Method

Maintenance Frequency

System cleanliness

Periodically check that the heat sinks are free from obstacles or dust.

Once every six to twelve months

System running status

Check that the SUN2000 is not damaged or deformed.
Check that the running sound of the SUN2000 is normal.
When the SUN2000 is running, check that all SUN2000 parameters are correctly set.

Once every six months

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Item Electrical connections
Grounding reliability

Check Method

Maintenance Frequency

Check that cables are securely connected.
If clamps are used for AC cable connections, check that they are secured with a torque of 35 N�m.
Check that cables are intact, in particular, the parts touching the metallic surface are not scratched.
Check that the unused COM, USB, and RESERVE ports are covered by watertight caps.

The first inspection is six months after the initial commissioning. From then on, the interval can be six or twelve months.

Check that ground cables are securely connected.

The first inspection is six months after the initial commissioning. From then on, the interval can be six or twelve months.

8.2 Troubleshooting
Alarm severities are defined as follows: Major: The inverter is faulty. As a result, the output power decreases or the
grid-tied power generation is stopped. Minor: Some components are faulty without affecting the grid-tied power
generation. Warning: The inverter works properly. The output power decreases or some
authorization functions fail due to external factors.

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Table 8-2 Common alarms and troubleshooting measures

Alarm Alarm Alarm Cause

Name Severity

2001

High String Input Voltage

Major

The PV array is incorrectly configured. Excessive PV modules are connected in series to the PV string, and hence the PV string open-circuit voltage exceeds the maximum operating voltage of the SUN2000.
Cause ID 1 corresponds to PV strings 1 and 2.
Cause ID 2 corresponds to PV strings 3 and 4.
Cause ID 3 corresponds to PV strings 5 and 6.
Cause ID 4 corresponds to PV strings 7 and 8.
Cause ID 5 corresponds to PV strings 9 and 10.
Cause ID 6 corresponds to PV strings 11 and 12.

2011

String Reverse Connec tion

Major

The PV string is reversely connected.
Cause IDs 1 to 12 respectively correspond to PV strings 1 to 12.

2012

String Current Backfee d

Warning

1. Only a few PV modules are connected in series to the PV string, and hence the end voltage is lower than that of other PV strings.
2. The PV string is shaded.
Cause IDs 1 to 12 respectively correspond to PV strings 1 to 12.

Measures
Reduce the number of PV modules connected in series to the PV string until the PV string open-circuit voltage is less than or equal to the maximum operating voltage of the SUN2000. After the PV array configuration is corrected, the alarm stops.
Check whether the PV string is reversely connected to the SUN2000. If yes, wait until the solar irradiance declines at night and the PV string current reduces to below 0.5 A. Then, turn off the two DC switches and correct the PV string connection.
1. Check whether the number of PV modules connected in series to this PV string is less than the number of PV modules connected in series to the other PV strings. If yes, connect more PV modules in series to this PV string.
2. Check the open-circuit voltage of the PV string.
3. Check that the PV string is not shaded.

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Alarm Alarm Alarm Cause

Name Severity

Measures

2013

Abnor mal String Power

Warning

1. The PV string has been shaded for a long time.
2. The PV string deteriorates abnormally.
Cause IDs 1 to 12 respectively correspond to PV strings 1 to 12.

1. Check whether the current of the abnormal PV string is lower than the current of other PV strings. If yes, check that the abnormal PV string is not shaded and the actual number of PV strings is the same as the configured number.
2. If the abnormal PV string is clean and not shaded, check whether the PV string is damaged.

2031

Phase Wire ShortCircuite d to PE

Major

Cause ID = 1
The impedance of the output phase wire to PE is low or the output phase wire is shortcircuited to PE.

Check the impedance of the output phase wire to PE, locate the position with lower impedance, and rectify the fault.

2032 Grid Loss

Major

Cause ID = 1
1. The power grid experiences an outage.
2. The AC circuit is disconnected or AC switch is off.

1. The alarm disappears automatically after the power grid recovers.
2. Check that the AC power cable is connected and that the AC switch is ON.

2033

Grid

Major

Underv

oltage

Cause ID = 1
The grid voltage is below the lower threshold or the low voltage duration has lasted for more than the value specified by LVRT.

1. If the alarm occurs accidentally, the power grid may be abnormal temporarily. The SUN2000 automatically recovers after detecting that the power grid becomes normal.
2. If the alarm occurs frequently, check whether the power grid voltage is within the acceptable range. If no, contact the local power operator. If yes, modify the power grid undervoltage protection threshold with the consent of the local power operator.
3. If the fault persists for a long time, check the AC circuit breaker and AC output power cable.

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Alarm Alarm Alarm Cause

Name Severity

Measures

2034

Grid

Major

Overvol

tage

Cause ID = 1
The grid voltage exceeds the higher threshold or the high voltage duration has lasted for more than the value specified by HVRT.

1. Check whether the grid connection voltage exceeds the upper threshold. If yes, contact the local power operator.
2. If you have confirmed that the grid connection voltage exceeds the upper threshold and obtained the consent of the local power operator, modify the overvoltage protection threshold.
3. Check that the peak grid voltage does not exceed the upper threshold.

2035

Grid Voltage Imbala nce

Major

Cause ID = 1
The difference between grid phase voltages exceeds the upper threshold.

1. Check that the grid voltage is within the normal range.
2. Check the connection of the AC output power cable. If the cable connection is proper but the alarm occurs frequently and affects the power production of the PV plant, contact the local power operator.

2036

Grid

Major

Overfre

quency

Cause ID = 1
Power grid exception: The actual grid frequency is higher than the requirement of the local power grid standard.

1. If the alarm occurs accidentally, the power grid may be abnormal temporarily. The SUN2000 automatically recovers after detecting that the power grid becomes normal.
2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator. If yes, modify the power grid overfrequency protection threshold with the consent of the local power operator.

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Alarm Alarm Alarm Cause

Name Severity

Measures

2037

Grid Underfr equenc y

Major

Cause ID = 1
Power grid exception: The actual power grid frequency is lower than the standard requirement for the local power grid.

1. If the alarm occurs accidentally, the power grid may be abnormal temporarily. The SUN2000 automatically recovers after detecting that the power grid becomes normal.
2. If the alarm occurs frequently, check whether the grid frequency is within the acceptable range. If no, contact the local power operator. If yes, modify the power grid underfrequency protection threshold with the consent of the local power operator.

2038

Unstabl e Grid Freque ncy

Major

Cause ID = 1
Power grid exception: The actual grid frequency change rate does not comply with the local power grid standard.

2039

Output Overcu rrent

Major

Cause ID = 1
The power grid voltage drops dramatically or the power grid is short-circuited. As a result, the inverter transient output current exceeds the upper threshold and therefore the inverter protection is triggered.

1. The inverter detects its external working conditions in real time. After the fault is rectified, the inverter automatically recovers.
2. If the alarm occurs frequently and affects the power production of the PV plant, check whether the output is short-circuited. If the fault persists, contact Huawei technical support.

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Alarm Alarm Alarm Cause

Name Severity

Measures

2040

Output DC Compo nent Overhi gh

Major

Cause ID = 1
The DC component of the SUN2000 output current exceeds the specified upper threshold.

1. If the exception is caused by an external fault, the SUN2000 automatically recovers after the fault is rectified.
2. If the alarm occurs frequently and affects the power production of the PV plant, contact Huawei technical support.

2051

Abnor mal Residua l Current

Major

Cause ID = 1
The insulation impedance of the input side to PE decreases when the SUN2000 is operating.

1. If the alarm occurs accidentally, the external power cable may be abnormal temporarily. The SUN2000 automatically recovers after the fault is rectified.
2. If the alarm occurs frequently or persists, check that the impedance between the PV string and ground is not below the lower threshold.

2061

Abnor mal Ground ing

Major

Cause ID = 1
1. The PE cable for the SUN2000 is not connected.
2. The SUN2000 output side does not connect to an isolation transformer when the PV string output is grounded.

1. Check that the PE cable for the SUN2000 is connected properly.
2. If the PV string output is grounded, check that the SUN2000 output side connects to an isolation transformer.

2062

Low Insulati on Resista nce

Major

Cause ID = 1
1. The PV string is short-circuited to PE.
2. The PV string has been in a moist environment for a long time and the power cable is not well insulated to ground.

1. Check the impedance between the PV string and the PE cable. If a short circuit occurs, rectify the fault.
2. Check that the PE cable for the SUN2000 is correctly connected.
3. If you are sure that the impedance is less than the default value in a cloudy or rainy environment, reset Insulation resistance protection.

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Alarm Alarm Alarm Cause

Name Severity

Measures

2063

Cabinet Overte mperat ure

Major

Cause ID = 1
1. The SUN2000 is installed in a place with poor ventilation.
2. The ambient temperature exceeds the upper threshold.
3. The SUN2000 is not working properly.

1. Check the ventilation and ambient temperature at the SUN2000 installation position. If the ventilation is poor or the ambient temperature exceeds the upper threshold, improve the ventilation and heat dissipation.
2. If the ventilation and ambient temperature both meet requirements, contact Huawei technical support.

2064 Device Major Fault

Cause ID = 1-15
An unrecoverable fault occurs on a circuit inside the SUN2000.

Turn off the AC output switch and DC input switch, and then turn them on after 5 minutes. If the fault persists, contact Huawei technical support.
NOTICE Cause ID = 1: Perform the preceding operations when the PV string current is less than 1 A.

2065 Upgrad Minor e Failed

Cause ID = 1-5 The upgrade ends abnormally.

1. Perform an upgrade again.
2. If the upgrade fails several times, contact your dealer.

2066

License Expired

Warning

Cause ID = 1
1. The privilege certificate has entered the grace period.
2. The privilege feature will be invalid soon.

1. Apply for a new certificate. 2. Load the new certificate.

61440

Faulty Monito ring Unit

Minor

Cause ID = 1
1. The flash memory is insufficient.
2. The flash memory has bad sectors.

Turn off the AC output switch and DC input switch, and then turn them on after 15 minutes. If the fault persists, replace the monitoring board or contact Huawei technical support.

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Alarm Alarm Alarm Cause

Name Severity

2085

Built-in PID Operati on Abnor mal

Minor

Cause ID = 1/2
1. The output resistance of PV arrays to ground is low.
2. The system insulation resistance is low.

8 Maintenance
Measures
Cause ID = 1 1. Turn off the AC output switch and then the DC input switch. After 15 minutes, turn on the AC output switch and then the DC input switch. 2. If the fault persists, contact your supplier/ Huawei technical support.
Cause ID = 2 1. Check the output resistance of PV arrays to ground. If there is a short circuit or lack of insulation, rectify it. 2. If the fault persists, contact your supplier/ Huawei technical support.

NOTE
Contact Huawei technical support if all failure analysis procedures listed above are completed and the fault still exists.

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9 Handling the Inverter
9.1 Removing the SUN2000
NOTICE Before removing the SUN2000, disconnect both AC and DC connections.
Perform the following operations to remove the SUN2000: 1. Disconnect all cables from the SUN2000, including RS485 communications
cables, DC input power cables, AC output power cables, and PGND cables. 2. Remove the SUN2000 from the mounting bracket. 3. Remove the mounting bracket.
9.2 Packing the SUN2000
If the original packing materials are available, put the SUN2000 inside them and then seal them by using adhesive tape.
If the original packing materials are not available, put the SUN2000 inside a suitable cardboard box and seal it properly.
9.3 Disposing of the SUN2000
If the SUN2000 service life expires, dispose of it according to the local disposal rules for electrical equipment waste.

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Efficiency

Item
Maximum efficiency European efficiency

SUN2000-50 KTL-M0
98.70%
98.50%

SUN2000-60KTL-M0

98.70% (380 V/400 V)
98.50% (380 V/400 V)

98.90% (480 V)
98.70% (480 V)

SUN2000-65 KTL-M0
98.90%
98.70%

Input

Item

SUN2000-50KTLM0

Maximum input power

56,200 W

Maximum input voltagea

Operating voltage rangeb

Maximum input current (per MPPT)

Maximum short-circuit current (per MPPT)

SUN2000-60KTLM0
67,400 W 1100 V
200�1000 V
22 A
30 A

SUN2000-65KTLM0
73,500 W

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Item

SUN2000-50KTLM0

SUN2000-60KTLM0

SUN2000-65KTLM0

Maximum

0 A

SUN2000

backfeed

current to

the PV array

Minimum startup voltage

200 V

Full power MPPT voltage range

520�800 V

520�800 V (380 V/400 V), 600�850
V (480 V)

600�850 V

Rated input voltage

600 V (380 V/400 V), 620 V (415 V)

600 V (380 V/400 V), 720 V (480 V)

720 V

Number of

inputs

Number of

MPP

trackers

Note a: The maximum input voltage is the upper threshold of the DC voltage. If the input voltage exceeds the threshold, the solar inverter may be damaged.
Note b: If the input voltage is beyond the operating voltage range, the solar inverter cannot work properly.

Output

Item

SUN2000-50KTLM0

Rated active power

50 kW

Maximum apparent power

55 kVA

Maximum active power (cos = 1)

55 kW (Can be set to 50 kW)

Rated output voltagea

220V/380V, 230V/ 400V, 240V/415V,
3W+(N)b+PE

SUN2000-60KTLM0
60 kW
66 kVA
66 kW (Can be set to 60 kW)
220V/380V, 230V/ 400V, 277V/480V,
3W+(N)b+PE

SUN2000-65KTLM0
65 kW
72 kVA
72 kW
277 V/480 V, 3W +PE

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Item

SUN2000-50KTLM0

SUN2000-60KTLM0

SUN2000-65KTLM0

Rated output current

76 A (380 V), 72.2 A 91.2 A (380 V) 86.7

(400 V), 69.6 A

A (400 V), 72.2 A

(415 V)

(480 V)

78.2 A

Adapted grid frequency

50 Hz/60 Hz

Maximum output current

83.6 A (380 V), 79.4 A (400 V), 76.6 A (415 V)

100 A (380 V), 95.3 A (400 V), 79.4 A (480 V)

86.7 A

Power factor

0.8 leading ... 0.8 lagging

Maximum total harmonic distortion (rated power)

< 3%

Note a: The rated output voltage is determined by Grid code, which can be set on the SUN2000 app, SmartLogger, or NetEco.
Note b: Choose whether to connect the neutral wire to the SUN2000-50KTL-M0 and SUN2000-60KTL-M0 based on the application scenario. When it is used in the scenarios without neutral wires, set Output mode to Three-phase, threewire. When it is used in the scenarios with neutral wires, set Output mode to Three-phase, four-wire.

Protection

Item
Input DC switch
Antiislanding protection
Output overcurrent protection
Input reverse polarity protection

SUN2000-50KTLM0

SUN2000-60KTLM0
Supported Supported
Supported
Supported

SUN2000-65KTLM0

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Item

SUN2000-50KTLM0

SUN2000-60KTLM0

SUN2000-65KTLM0

PV string fault detection

Supported

DC surge protection

Type II

AC surge protection

Type II

Insulation resistance detection

Supported

Residual current monitoring unit (RCMU)

Supported

Overvoltage category

PV II/AC III

Built-in PID repairc

Optional

Not supported

Note c: When the SUN2000 is disconnected from the grid and stops working, the built-in PID can achieve the PV� positive offset of the PV module. (PV� positive offset refers to raising the voltage between PV� and the ground to above 0 V through voltage compensation.) When designing a power plant, confirm with the PV module manufacturer that the anti-PID voltage compensation direction of the PV module is the same as the direction of the PV� positive offset. Otherwise, PV modules may be damaged.

CAUTION
For the SUN2000 that supports built-in PID repair, when Built-in PID running mode is set to Repair, there is repair voltage between PV modules and the ground at night. If you need to maintain PV modules at night, power off the SUN2000 to avoid electric shocks.

Display and Communication

Item

SUN2000-50KTLM0

SUN2000-60KTLM0

SUN2000-65KTLM0

Display

LED, Bluetooth module+app, USB data cable+app, WLAN module +app

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10 Technical Specifications

Item

SUN2000-50KTLM0

Communicat ion networking mode

SUN2000-60KTLM0
MBUS/RS485

SUN2000-65KTLM0

Common Parameters

Item

SUN2000-50KTLM0

SUN2000-60KTLM0

SUN2000-65KTLM0

Dimensions (W x H x D)

1075 mm x 555 mm x 300 mm

Net weight

74 kg�1 kg

72 kg�1 kg

Operating temperature

�25�C to +60�C

Cooling mode

Natural convection

Highest operating altitude

4000 m

Humidity

0%�100% RH

Input terminal

Amphenol Helios H4

Output terminal

Cable gland+OT terminal

Ingress

IP65

Protection

Rating

Topology

Transformerless

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A Grid Code

NOTE The grid codes are subject to change. The listed codes are for reference only.

Table A-1 Grid codes (for the SUN2000-50KTL-M0)

No. Grid Code

Description

VDE-AR-N-4105

Germany low-voltage power grid

NB/T 32004

China Golden Sun low-voltage power grid

UTE C 15-712-1(A)

France mainland low-voltage power grid

UTE C 15-712-1(B)

France island power grid

UTE C 15-712-1(C)

France island power grid

VDE 0126-1-1-BU

Bulgaria power grid

VDE 0126-1-1-GR(A)

Greece mainland power grid

VDE 0126-1-1-GR(B)

Greece island power grid

BDEW-MV

Germany medium-voltage power grid

10 G59-England

England 230 V power grid (I > 16 A)

11 G59-Scotland

Scotland 240 V power grid (I > 16 A)

12 CEI0-21

Italy low-voltage power grid

13 EN50438-CZ

Czech Republic low-voltage power grid

14 RD1699/661

Spain low-voltage power grid

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No. Grid Code 15 EN50438-NL 16 C10/11 17 AS4777 18 IEC61727
19 Custom (50 Hz) 20 Custom (60 Hz) 21 CEI0-16 22 CHINA-MV 23 EN50438-TR 24 Philippines 25 NRS-097-2-1 26 KOREA
27 IEC61727-60Hz
28 ANRE 29 EN50438_IE 30 PO12.3 31 Egypt ETEC 32 EN50549-LV 33 Jordan-Transmission 34 NAMIBIA 35 ABNT NBR 16149 36 SA_RPPs
37 INDIA 38 ZAMBIA 39 Chile 40 Malaysian 41 KENYA_ETHIOPIA

A Grid Code
Description Netherlands power grid Belgium low-voltage power grid Australia low-voltage power grid IEC61727 low-voltage power grid (50 Hz) Reserved Reserved Italy low-voltage power grid China medium-voltage power grid Turkey low-voltage power grid Philippines low-voltage power grid South Africa power grid South Korea low-voltage power grid IEC61727 low-voltage power grid (60 Hz) Romania low-voltage power grid Ireland low-voltage power grid Spain low-voltage power grid Egypt low-voltage power grid Ireland power grid Jordan low-voltage power grid Namibia power grid Brazil low-voltage power grid South Africa low-voltage power grid India low-voltage power grid Zambia low-voltage power grid Chile low-voltage power grid Malaysia low-voltage power grid Kenya low-voltage and Ethiopia low-voltage power grid

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No. Grid Code 42 NIGERIA 43 DUBAI 44 Northern Ireland
45 Cameroon 46 Jordan-Distribution
47 LEBANON 48 Jordan-Transmission-HV 49 TUNISIA 50 AUSTRALIA-NER 51 SAUDI 52 Israel 53 Chile-PMGD 54 VDE-AR-N4120-HV 55 Vietnam 56 TAIPOWER
57 EN50438-SE 58 Austria 59 G99-TYPEA-LV
60 G99-TYPEB-LV
61 G99-TYPEB-HV 62 G99-TYPEA-HV 63 EN50549-MV400 64 VDE-AR-N4110

A Grid Code
Description Nigeria low-voltage power grid Dubai low-voltage power grid Northern Ireland low-voltage power grid Cameroon low-voltage power grid Jordan power distribution network low-voltage power grid Lebanon low-voltage power grid Jordan high-voltage power grid Tunisia power grid Australia NER standard power grid Saudi Arabia power grid Israel power grid Chile PMGD project power grid VDE4120 standard power grid Vietnam power grid Taiwan power low-voltage power grid Sweden low-voltage power grid Austrian power grid UK G99_TypeA_low-voltage power grid UK G99_TypeB_low-voltage power grid UK G99_TypeB_HV power grid UK G99_TypeA_HV power grid Ireland new standard power grid Germany medium-voltage power grid (230 V)

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A Grid Code

Table A-2 Grid codes (for the SUN2000-60KTL-M0)

No. Grid Code

Description

VDE-AR-N-4105

Germany low-voltage power grid

NB/T 32004

China Golden Sun low-voltage power grid

UTE C 15-712-1(A)

France mainland low-voltage power grid

UTE C 15-712-1(B)

France island power grid

UTE C 15-712-1(C)

France island power grid

VDE 0126-1-1-BU

Bulgaria power grid

VDE 0126-1-1-GR(A)

Greece mainland power grid

VDE 0126-1-1-GR(B)

Greece island power grid

BDEW-MV

Germany medium-voltage power grid

10 G59-England

England 230 V power grid (I > 16 A)

11 G59-Scotland

Scotland 240 V power grid (I > 16 A)

12 CEI0-21

Italy low-voltage power grid

13 EN50438-CZ

Czech Republic low-voltage power grid

14 RD1699/661

Spain low-voltage power grid

15 RD1699/661-MV480

Spain medium-voltage power grid

16 EN50438-NL

Netherlands power grid

17 C10/11

Belgium low-voltage power grid

18 AS4777

Australia low-voltage power grid

19 IEC61727

IEC61727 low-voltage power grid (50 Hz)

20 Custom (50 Hz)

Reserved

21 Custom (60 Hz)

Reserved

22 CEI0-16

Italy low-voltage power grid

23 TAI-PEA

Thailand PEA power grid

24 TAI-MEA

Thailand MEA power grid

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No. Grid Code 25 BDEW-MV480
26 Custom MV480 (50 Hz) 27 Custom MV480 (60 Hz) 28 G59-England-MV480
29 IEC61727-MV480
30 UTE C 15-712-1-MV480 31 TAI-PEA-MV480
32 TAI-MEA-MV480
33 EN50438-DK-MV480
34 EN50438-TR-MV480 35 CHINA-MV 36 EN50438-TR 37 C11/C10-MV480
38 Philippines 39 Philippines-MV480
40 AS4777-MV480
41 NRS-097-2-1 42 NRS-097-2-1-MV480
43 KOREA
44 IEC61727-60Hz
45 IEC61727-60Hz-MV480
46 ANRE

A Grid Code
Description
Germany medium-voltage power grid
Reserved
Reserved
UK 480 V medium-voltage power grid (I > 16 A)
IEC61727 medium-voltage power grid (50 Hz)
France island power grid
Thailand medium-voltage PEA power grid
Thailand medium-voltage MEA power grid
Denmark medium-voltage power grid
Turkey medium-voltage power grid
China medium-voltage power grid
Turkey low-voltage power grid
Belgium medium-voltage power grid
Philippines low-voltage power grid
Philippines medium-voltage power grid
Australia medium-voltage power grid
South Africa power grid
South Africa medium-voltage power grid
South Korea low-voltage power grid
IEC61727 low-voltage power grid (60 Hz)
IEC61727 medium-voltage power grid (60 Hz)
Romania low-voltage power grid

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No. Grid Code 47 ANRE-MV480 48 PO12.3-MV480 49 EN50438_IE-MV480 50 EN50438_IE 51 CEI0-16-MV480 52 PO12.3 53 CEI0-21-MV480 54 KOREA-MV480
55 Egypt ETEC 56 Egypt ETEC-MV480 57 EN50549-LV 58 EN50549-MV480 59 Jordan-Transmission 60 Jordan-Transmission-MV480 61 NAMIBIA 62 ABNT NBR 16149 63 ABNT NBR 16149-MV480 64 SA_RPPs
65 SA_RPPs-MV480
66 INDIA 67 ZAMBIA 68 ZAMBIA-MV480
69 Chile 70 Chile-MV480 71 Mexico-MV480 72 Malaysian 73 Malaysian-MV480

A Grid Code
Description Romania MV Spain medium-voltage power grid Ireland medium-voltage power grid Ireland low-voltage power grid Italy medium-voltage power grid Spain low-voltage power grid Italy medium-voltage power grid South Korea medium-voltage power grid Egypt low-voltage power grid Egypt medium-voltage power grid Ireland power grid Ireland medium-voltage power grid Jordan low-voltage power grid Jordan medium-voltage power grid Namibia power grid Brazil low-voltage power grid Brazil medium-voltage power grid South Africa low-voltage power grid South Africa medium-voltage power grid India low-voltage power grid Zambia low-voltage power grid Zambia medium-voltage power grid Chile low-voltage power grid Chile medium-voltage power grid Mexico medium-voltage power grid Malaysia low-voltage power grid Malaysia medium-voltage power grid

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No. Grid Code 74 KENYA_ETHIOPIA
75 KENYA_ETHIOPIA-MV480
76 NIGERIA 77 NIGERIA-MV480
78 DUBAI 79 DUBAI-MV480 80 Northern Ireland
81 Northern Ireland-MV480
82 Cameroon 83 Cameroon-MV480
84 Jordan-Distribution
85 Jordan-Distribution-MV480
86 NAMIBIA_MV480 87 LEBANON 88 LEBANON-MV480
89 ARGENTINA-MV500
90 Jordan-Transmission-HV 91 Jordan-Transmission-HV480 92 TUNISIA 93 TUNISIA-MV480 94 AUSTRALIA-NER 95 AUSTRALIA-NER-MV480 96 SAUDI 97 SAUDI-MV480

A Grid Code
Description Kenya low-voltage and Ethiopia low-voltage power grid Kenya low-voltage and Ethiopia medium-voltage power grid Nigeria low-voltage power grid Nigeria medium-voltage power grid Dubai low-voltage power grid Dubai medium-voltage power grid Northern Ireland low-voltage power grid Northern Ireland medium-voltage power grid Cameroon low-voltage power grid Cameroon medium-voltage power grid Jordan power distribution network low-voltage power grid Jordan power distribution network medium-voltage power grid Namibia power grid Lebanon low-voltage power grid Lebanon medium-voltage power grid Argentina medium-voltage power grid Jordan high-voltage power grid Jordan high-voltage power grid Tunisia power grid Tunisia medium-voltage power grid Australia NER standard power grid Australia NER standard power grid Saudi Arabia power grid Saudi Arabia power grid

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No. Grid Code 98 Ghana-MV480 99 Israel 100 Israel-MV480 101 Chile-PMGD 102 Chile-PMGD-MV480 103 VDE-AR-N4120-HV 104 VDE-AR-N4120-HV480 105 Vietnam 106 Vietnam-MV480 107 TAIPOWER
108 TAIPOWER-MV480
109 ARGENTINA 110 Mauritius 111 Mauritius-MV480
112 EN50438-SE 113 Austria 114 Austria-MV480
115 G99-TYPEA-LV
116 G99-TYPEB-LV
117 G99-TYPEB-HV 118 G99-TYPEB-HV-MV480
119 G99-TYPEA-HV 120 EN50549-MV400 121 VDE-AR-N4110
122 VDE-AR-N4110-MV480

A Grid Code
Description Ghana medium-voltage power grid Israel power grid Israel power grid Chile PMGD project power grid Chile PMGD project power grid VDE4120 standard power grid VDE4120 standard power grid Vietnam power grid Vietnam power grid Taiwan power low-voltage power grid Taiwan power medium-voltage power grid Argentina power grid Mauritius power grid Mauritius medium-voltage power grid Sweden low-voltage power grid Austrian power grid Mauritius medium-voltage power grid UK G99_TypeA_low-voltage power grid UK G99_TypeB_low-voltage power grid UK G99_TypeB_HV power grid UK G99_TypeB_HV medium-voltage power grid UK G99_TypeA_HV power grid Ireland new standard power grid Germany medium-voltage power grid (230 V) Germany medium-voltage power grid

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No. Grid Code 123 NTS 124 NTS-MV480

A Grid Code
Description Spain power grid Spain medium-voltage power grid

Table A-3 Grid codes (for the SUN2000-65KTL-M0)

No. Grid Code

Description

RD1699/661-MV480

Spain medium-voltage power grid

BDEW-MV480

Germany medium-voltage power grid

G59-England-MV480

UK 480 V medium-voltage power grid (I > 16 A)

IEC61727-MV480

IEC61727 medium-voltage power grid (50 Hz)

UTE C 15-712-1-MV480

France island power grid

TAI-PEA-MV480

Thailand PEA power grid

TAI-MEA-MV480

Thailand MEA power grid

EN50438-DK-MV480

Denmark medium-voltage power grid

EN50438-TR-MV480

Turkey medium-voltage power grid

10 C11/C10-MV480

Belgium medium-voltage power grid

11 Philippines-MV480

Philippines medium-voltage power grid

12 AS4777-MV480

Australia medium-voltage power grid

13 NRS-097-2-1-MV480

South Africa medium-voltage power grid

14 IEC61727-60Hz-MV480

IEC61727 medium-voltage power grid (60 Hz)

15 ANRE-MV480

Romania MV

16 PO12.3-MV480

Spain medium-voltage power grid

17 EN50438_IE-MV480

Ireland medium-voltage power grid

18 CEI0-16-MV480

Italy medium-voltage power grid

19 CEI0-21-MV480

Italy medium-voltage power grid

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No. Grid Code 20 KOREA-MV480
21 Egypt ETEC-MV480 22 Jordan-Transmission-MV480 23 ABNT NBR 16149-MV480 24 SA_RPPs-MV480
25 ZAMBIA-MV480
26 Chile-MV480 27 Mexico-MV480 28 Malaysian-MV480
29 KENYA_ETHIOPIA-MV480
30 NIGERIA-MV480
31 DUBAI-MV480 32 Northern Ireland-MV480
33 Cameroon-MV480
34 Jordan-Distribution-MV480
35 NAMIBIA_MV480 36 LEBANON-MV480
37 ARGENTINA-MV500
38 Jordan-Transmission-HV480 39 TUNISIA-MV480 40 AUSTRALIA-NER-MV480 41 SAUDI-MV480 42 Ghana-MV480

A Grid Code
Description
South Korea medium-voltage power grid
Ireland medium-voltage power grid
Jordan medium-voltage power grid
Brazil medium-voltage power grid
South Africa medium-voltage power grid
Zambia medium-voltage power grid
Chile medium-voltage power grid
Mexico medium-voltage power grid
Malaysia medium-voltage power grid
Kenya low-voltage and Ethiopia medium-voltage power grid
Nigeria medium-voltage power grid
Dubai medium-voltage power grid
Northern Ireland medium-voltage power grid
Cameroon medium-voltage power grid
Jordan power distribution network medium-voltage power grid
Namibia power grid
Lebanon medium-voltage power grid
Argentina medium-voltage power grid
Jordan high-voltage power grid
Tunisia medium-voltage power grid
Australia NER standard power grid
Saudi Arabia power grid
Ghana medium-voltage power grid

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No. Grid Code 43 Israel-MV480 44 Chile-PMGD-MV480 45 VDE-AR-N4120-HV480 46 Vietnam-MV480

A Grid Code
Description Israel power grid Chile PMGD project power grid VDE4120 standard power grid Vietnam power grid

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B Domain Name List of Management Systems

NOTE The list is subject to change.

Table B-1 Domain names of management systems

Domain Name

Data Type

intl.fusionsolar.huawei.co Public IP address m

Scenario
FusionSolar hosting cloud
NOTE The domain name is compatible with cn.fusionsolar.huawei.com (Chinese mainland).

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C Product User Lists

User Name Common User Advanced User Special User

C Product User Lists
Initial Password 00000a 00000a 00000a

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D Acronyms and Abbreviations

C CCO
H HVRT
L LED LVRT
M MPP MPPT
P PID PV
R RCD
W WEEE

central controller
high voltage ride-through
light emitting diode low voltage ride-through
maximum power point maximum power point tracking
potential induced degradation photovoltaic
residual current device
waste electrical and electronic equipment

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