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SUN2000-(3KTL-10KTL)-M0 User Manual Issue 03 Date 2019-07-19 HUAWEI TECHNOLOGIES CO., LTD.

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SUN2000-(3KTL-10KTL)-M0
User Manual

Issue Date

03 2019-07-19

HUAWEI TECHNOLOGIES CO., LTD.

Copyright � Huawei Technologies Co., Ltd. 2019. 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: Website:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China
http://e.huawei.com

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SUN2000-(3KTL-10KTL)-M0 User Manual

About This Document

Purpose

This document describes the SUN2000-3KTL-M0, SUN2000-4KTL-M0, SUN2000-5KTL-M0, SUN2000-6KTL-M0, SUN2000-8KTL-M0, and SUN2000-10KTL-M0 (SUN2000 for short) in terms of installation, electrical connections, commissioning, maintenance, and troubleshooting. Read this document through, understand the safety information, and get familiar with the functions and features of the SUN2000 before installing and operating it.

The SUN2000-8KTL-M0 and SUN2000-10KTL-M0 inverters are not applicable to Australia.

Intended Audience
This document is intended for: Installers Users

Symbol Conventions

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

Symbol

Description
Indicates an imminently hazardous situation which, if not avoided, will result in serious injury or death.
Indicates a potentially hazardous situation which, if not avoided, could result in serious injury or death.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

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Symbol

About This Document
Description
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.
Calls attention to important information, best practices and tips. NOTE is used to address information not related to personal injury, equipment damage, or environment deterioration.

Change History
Changes between document issues are cumulative. The latest document issue contains all updates made in previous issues.
Issue 03 (2019-07-19)
Added note: SUN2000-8KTL-M0 and SUN2000-10KTL-M0 inverters are not applicable to Australia.
Added 6.3 Commissioning. Added E Starting AFCI Check. Added F IPS Test (for Italy CEI0-21 Grid Code only). Updated B Setting Dry Contact Scheduling Parameters. Added C Setting Export Limitation Parameters. Added D Setting Voltage Rise Suppression Q-U Curve.
Issue 02 (2019-04-30)
This issue is the second official release.
Issue 01 (2018-12-30)
This issue is used for first office application (FOA).

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iii

SUN2000-(3KTL-10KTL)-M0 User Manual

Contents

About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
2 Overview.........................................................................................................................................4
2.1 Product Introduction ..................................................................................................................................................... 4 2.2 Appearance ................................................................................................................................................................... 7 2.3 Label Description.......................................................................................................................................................... 9 2.3.1 Enclosure Labels........................................................................................................................................................ 9 2.3.2 Product Nameplate................................................................................................................................................... 10 2.4 Working Principles...................................................................................................................................................... 11 2.4.1 Circuit Diagram ....................................................................................................................................................... 11 2.4.2 Working Modes........................................................................................................................................................ 11
3 Storage ........................................................................................................................................... 14
4 Installation.................................................................................................................................... 15
4.1 Checking Before Installation ...................................................................................................................................... 15 4.2 Tools ........................................................................................................................................................................... 15 4.3 Determining the Installation Position ......................................................................................................................... 17 4.3.1 Environment Requirements ..................................................................................................................................... 17 4.3.2 Space Requirements................................................................................................................................................. 17 4.4 Installing the Mounting Bracket ................................................................................................................................. 21 4.4.1 Wall-mounted Installation........................................................................................................................................ 22 4.4.2 Support-mounted Installation .................................................................................................................................. 24
5 Electrical Connections ................................................................................................................ 28
5.1 Preparing for Installation ............................................................................................................................................ 29 5.2 Connecting the PE cable ............................................................................................................................................. 31 5.3 Connecting the AC Output Power Cable .................................................................................................................... 34 5.4 Connecting the DC input power cable ........................................................................................................................ 37 5.5 (Optional) Installing the Smart Dongle....................................................................................................................... 42 5.6 (Optional) Installing the Signal Cable ........................................................................................................................ 42 5.6.1 Connecting the RS485 Communications Cable (Inverter Cascading) ..................................................................... 45 5.6.2 Connecting the RS485 Communications Cable (Smart Power Sensor) ................................................................... 46 5.6.3 Connecting the Power Grid Scheduling Signal Cable ............................................................................................. 49

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Contents

6 Commissioning............................................................................................................................ 52
6.1 Check Before Power-On ............................................................................................................................................. 52 6.2 Powering On the System............................................................................................................................................. 53 6.3 Commissioning ........................................................................................................................................................... 54 6.3.1 Scenario 1: Single inverter + Smart Dongle ............................................................................................................ 54 6.3.2 Scenario 2: Multiple Inverters + SmartLogger1000A ............................................................................................. 57 6.3.3 Other Scenarios........................................................................................................................................................ 57 6.4 Powering Off the System ............................................................................................................................................ 60
7 Maintenance ................................................................................................................................. 61
7.1 Routine Maintenance .................................................................................................................................................. 61 7.2 Troubleshooting .......................................................................................................................................................... 62
8 Handling the Inverter.................................................................................................................69
8.1 Removing the SUN2000 ............................................................................................................................................. 69 8.2 Packing the SUN2000................................................................................................................................................. 69 8.3 Disposing of the SUN2000 ......................................................................................................................................... 69
9 Technical Data ............................................................................................................................. 70 A Grid Codes................................................................................................................................... 75 B Setting Dry Contact Scheduling Parameters.........................................................................78 C Setting Export Limitation Parameters .................................................................................... 80 D Setting Voltage Rise Suppression Q-U Curve ..................................................................... 83 E Starting AFCI Check .................................................................................................................. 85 F IPS Test (for Italy CEI0-21 Grid Code only) .......................................................................... 86 G Acronyms and Abbreviations.................................................................................................. 89

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1 Safety Precautions

1 Safety Precautions
Safety

Before performing operations, read through this manual and follow all the precautions to prevent accidents. The DANGER, WARNING, CAUTION, and NOTICE statements in this document do not represent all the safety instructions. They are only supplements to the safety instructions.
Only certified electricians are allowed to install, connect cables for, commission, maintain, and troubleshoot Huawei products, and they must understand basic safety precautions to avoid hazards.

When operating Huawei equipment, in addition to following the general precautions in this document, follow the specific safety instructions given by Huawei. Huawei will not be liable for any consequence caused by the violation of the safety operation regulations and design, production, and usage standards.

Disclaimer

Huawei shall not be liable for any consequence caused by any of the following events:
Damage during the transportation by the customer Storage conditions that do not meet the requirements specified in this document. Incorrect storage, installation, or use Installation or use by unqualified personnel Failure to follow the operation instructions and safety precautions in this document Operation in extreme environments which are not covered in this document Operation beyond specified ranges. Unauthorized modifications to the product or software code or removal of the product Device damage due to force majeure (such as earthquake, fire, and storm) Warranty expiration without extension of warranty service. Installation or use in environments which are not specified in relevant international
standards

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1 Safety Precautions

Personnel Requirements
Operation personnel should receive professional training. Operation personnel should read through this document and follow all the precautions. Operation personnel should be familiar with the safety standards relevant to electrical
systems. Operation personnel should understand the composition and working principles of the
grid-tied PV system and be aware of local regulations. Operation personnel must wear proper personal protective equipment (PPE).

Protecting Labels
Do not scrawl, damage, or block any warning label on the device.

Installation

Never power on the SUN2000 during installation.
Ensure that the SUN2000 is not connected to a power supply or powered on before finishing installation.
Ensure that the SUN2000 is installed in a well-ventilated environment. Ensure that the SUN2000 heat sinks are free from blockage. Do not open the front panel of the SUN2000. Do not remove the terminals and ports at the bottom of the SUN2000.

Grounding

When installing the device, always make the ground connection first and disconnect it in the end.
Do not damage the ground conductor.

Electrical Connections

Before connecting cables, ensure that the SUN2000 is secured in position and not damaged in any way. Otherwise, electric shock or fire may occur.
Ensure that all electrical connections comply with local electrical standards. Obtain approval from the local utility company before using the SUN2000 to generate
electricity in grid-tied mode. Ensure that the cables used in a grid-tied PV system are properly connected and insulated
and meet all specification requirements.

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Operation

1 Safety Precautions

High voltage may cause an electric shock, which results in serious property damage, serious injury, or death from the SUN2000 in operation. Strictly comply with the safety precautions in this document and associated documents when operating the SUN2000.
Before operating a device, ensure that it is properly grounded. Do not touch an energized SUN2000 because the heat sink reaches a high temperature. Follow local laws and regulations when operating the equipment.
Commissioning
When the SUN2000 is powered on for the first time, only qualified personnel are allowed to set the parameters on Quick Setting. Incorrect settings may cause the SUN2000 to conflict with the local certification, which affects the normal operation of the SUN2000.
Maintenance and Replacement

High voltage may cause an electric shock, which results in serious property damage, serious injury, or death, or serious property damage from the SUN2000 in operation. Prior to maintenance, power off the SUN2000 and strictly comply with the safety precautions in this document and associated documents when operating the SUN2000.
A faulty SUN2000 requires overall maintenance. Contact your dealer if the SUN2000 is faulty.
Maintain the SUN2000 with sufficient knowledge of this document, proper tools, and testing equipment.
Before maintaining the SUN2000, power it off and follow the instructions on the delay discharge label. Wait for a proper time to operate the SUN2000.
Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.
Rectify any fault that may compromise the SUN2000 security performance before powering it on again.
Observe ESD precautions during maintenance.

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2 Overview

2.1 Product 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 into the power grid.
This document involves the following product models:
SUN2000-3KTL-M0 SUN2000-4KTL-M0 SUN2000-5KTL-M0 SUN2000-6KTL-M0 SUN2000-8KTL-M0 SUN2000-10KTL-M0

The SUN2000-8KTL-M0 and SUN2000-10KTL-M0 inverters are not applicable to Australia.
Figure 2-1 Model description (SUN2000-5KTL-M0 as an example)

Table 2-1 Model description

Icon

Meaning

Product

Description SUN2000: three-phase grid-tied PV string inverter

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Icon 2

Meaning Power level

Topology

Product code

2 Overview
Description 3K: The rated power is 3 kW. 4K: The rated power is 4 kW. 5K: The rated power is 5 kW. 6K: The rated power is 6 kW. 8K: The rated power is 8 kW. 10K: The rated power is 10 kW.
TL: transformerless M0: the product series with the 1100 V DC input voltage

Network Application
The SUN2000 applies to grid-tied PV systems for residential rooftops and small ground plants. Typically, a grid-tied system consists of the PV string, SUN2000, AC switch, and alternating current distribution unit (ACDU).
Figure 2-2 Networking application (optional in dashed boxes)

indicates a power cable,

communication.

indicates a signal cable,

indicates wireless

If the inverter is connected to the FusionSolar app over its built-in WiFi network, only local commissioning can be performed.

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(A) PV string (D) AC switch (G) Power grid (J) Router
(M) Load

2 Overview

(B) DC switch (E) ACDU (H) 4G Smart Dongle (K) FusionSolar management system (N) Ripple Control Device

Supported Power Grids
Power grid types supported by the SUN2000 include TN-S, TN-C, TN-C-S, TT, and IT.
Figure 2-3 Supported power grids

In a TT power grid, the N-PE voltage should be lower than 30 V. In an IT power grid, you need to set Isolation settings to Input not grounded, with a transformer.

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2.2 Appearance
Figure 2-4 Appearance

2 Overview

(1) LED indicator (3) Mounting plate (5) Ventilation valve (7) AC output port (AC) (9) Smart Dongle port (GPRS/4G/WLAN)
(11) DC input terminals (PV2+/PV2�) (13) DC switch (DC SWITCH)

(2) Front panel (4) Heat sink (6) Ground screw (8) Communication port (COM) (10) Battery terminals (BAT+/BAT�) (reserved) (12) DC input terminals (PV1+/PV1�)

Two M6 screw holes are reserved on the sides of the enclosure for installing an awning.

Table 2-2 LED indicator description

Category

Status

Running indication

LED 1 Steady green

LED 2 Steady green

Meaning
N/A
The SUN2000 is operating in grid-tied mode.

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2 Overview

Category
Communication indication

Status

Meaning

Blinking green at Off long intervals (on for 1s and then off for 1s)

The DC is on and the AC is off.

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

The DC is on, the AC is on, and the SUN2000 is not exporting power to the power grid.

Off

Blinking green at DC is off and AC is on.

long intervals

Off

DC and AC are both off..

Blinking red at N/A short intervals (on for 0.2s and then off for 0.2s)

DC environmental alarm

N/A

Blinking red at AC environmental alarm

short intervals

(on for 0.2s and

then off for 0.2s)

Steady red

Fault

LED 3

N/A

Blinking green at short intervals (on for 0.2s and then off for 0.2s)

Communication is in progress. (When a mobile phone is connected to the SUN2000, the indicator first indicates that the phone is connected to the SUN2000): blinks green at long intervals.)

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

The mobile phone is connected to the SUN2000.

Off

There is no communication.

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2.3 Label Description
2.3.1 Enclosure Labels
Symbol

2 Overview

Name Delayed discharge Burn warning Electric shock warning label
Refer to documentation

Meaning
Residual voltage exists after the SUN2000 is powered off. It takes 5 minutes for the SUN2000 to discharge to the safe voltage.
Do not touch an operating SUN2000 because it generates high temperatures on the shell.
High voltage exists after the SUN2000 is powered on. Only qualified and trained electrical technicians are allowed to perform operations on the SUN2000.
High touch current exists after the SUN2000 is powered on. Ensure that the SUN2000 has been grounded before powering on it.
Reminds operators to refer to the documents shipped with the SUN2000.

Grounding

Indicates the position for connecting the protective earthing (PE) cable.

Operation warning
SUN2000 serial number (SN) label

Do not remove the DC input connector or the AC output connector when the SUN2000 is running.
Indicates the SUN2000 SN.

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Symbol

2 Overview

Name
SUN2000 MAC address label
QR code label for SUN2000 WiFi connection

Meaning
Indicates the MAC address.
Scan the QR code to connect to Huawei SUN2000 WiFi network.

2.3.2 Product Nameplate
Figure 2-5 Nameplate (SUN2000-5KTL-M0 as an example)

(1) Trademark and product model (3) Compliance symbols

(2) Important technical specifications (4) Company name and country of manufacture

The nameplate figure is for reference only.

Symbol

Name

T�VRheinland certification mark

Australia RCM certification mark

Meaning
The SUN2000 complies with T�VRheinland certification standards.
This product complies with Australia RCM certification standards.

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Symbol

2 Overview

Name

Meaning

Conformit�Europ�enne (CE) certification mark

This product complies with CE certification standards.

Environmentally friendly use The product does not pollute the

period (EFUP) mark

environment during the specified

period.

EU waste electrical and electronic equipment (WEEE) mark

Do not dispose of the product as household garbage.

2.4 Working Principles
2.4.1 Circuit Diagram
Two PV strings connect to the SUN2000, and their maximum power points are tracked by two maximum power point tracking (MPPT) circuits. The SUN2000 converts DC power into three-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides.
Figure 2-6 SUN2000 conceptual diagram

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 2-3 Working mode description

Working Mode

Description

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.

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2 Overview

Working Mode
Shutdown

Description
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 if the SUN2000 is not put into use directly:
Do not unpack the SUN2000. Keep the storage temperature at �40�C to +70�C and the humidity at 5%�95% RH. The SUN2000 should be stored in a clean and dry place and be protected from dust and
water vapor corrosion. A maximum of eight SUN2000s can be stacked. To avoid personal injury or device
damage, stack SUN2000s with caution to prevent them from falling over. Periodic inspections are required during the storage. Replace the packing materials if
necessary. If the SUN2000 has been long-term stored, inspections and tests should be conducted by
qualified personnel before it is put into use.

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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.
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.
For details about the number of contents, see the Packing List in the packing case.

4.2 Tools

Type

Tool

Installation Tools

Hammer drill
Drill bit: 8 mm and 6 mm

Socket wrench set

Torque screwdriver Phillips head: M3

Diagonal pliers

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Type

Tool

4 Installation

Wire stripper

Removal wrench
Model: H4TW0001; manufacturer: Amphenol

Rubber mallet

Utility knife

Cable cutter

Crimping tool
Model: H4TC0003/H4TC0002 ; manufacturer: Amphenol

Multimeter
DC voltage measurement range 1100 V DC

Vacuum cleaner

Marker

Measuring tape

Bubble or digital level OT terminal crimping tool
N/A

Heat shrink tubing

Heat gun

Cable tie

PPE Safety gloves

Safety goggles

Anti-dust respirator Safety shoes

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4.3 Determining the Installation Position
4.3.1 Environment Requirements

4 Installation

Basic Requirements
The SUN2000 is protected to IP65 and can be installed indoors or outdoors.
Do not install the SUN2000 in a place where personnel are easy to come into contact with its enclosure and heat sinks, because these parts are extremely hot during operation.
Do not install the SUN2000 in areas with flammable or explosive materials.
Do not install the SUN2000 at a place within children's reach.
Do not install the SUN2000 outdoors in salt areas because it will be corroded there and may cause fire. 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 depending on weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).
The SUN2000 must be installed in a well-ventilated environment to ensure good heat dissipation.
Recommended: Install the SUN2000 in a sheltered place or a place with an awning.

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

Installation Angle Requirements
The SUN2000 can be wall-mounted or pole-mounted. The installation angle requirements are as follows:
Install the SUN2000 vertically or at a maximum back tilt of 15 degrees to facilitate heat dissipation.
Do not install the SUN2000 at forward tilted, excessive back tilted, side tilted, horizontal, or upside down positions.

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Figure 4-1 Installation tilts

4 Installation

Installation Space Requirements
Reserve enough space around the SUN2000 to ensure sufficient space for installation and heat dissipation.

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Figure 4-2 Installation space

4 Installation

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.
Figure 4-3 Horizontal installation (recommended)

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Figure 4-4 Staggered installation (recommended)

4 Installation

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Figure 4-5 Stacked installation (not recommended)

4 Installation

4.4 Installing the Mounting Bracket
Installation Precautions
Figure 4-6 shows the dimensions of installation holes on the SUN2000.

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Figure 4-6 Mounting bracket dimensions

4 Installation

4.4.1 Wall-mounted Installation
Procedure
Step 1 Determine the installation positions for drilling holes, and mark the positions using a marker. Step 2 Secure the mounting brackets.
M6x60 expansion bolts are delivered with the SUN2000. If the length and amount of the bolts do not meet installation requirements, prepare M6 stainless steel expansion bolts by yourself.
Figure 4-7 Expansion bolt composition

(1) Bolt (4) Flat washer

(2) Nut (5) Expansion tube

(3) Spring washer

Avoid drilling holes in the utility pipes or cables attached to the back of the wall.

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4 Installation

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 large hole tolerance exists, position and drill holes again.
After removing the bolt, spring washer, and flat washer, level the front of the expansion tube with the concrete wall. Otherwise, the mounting brackets will not stay steady on the concrete wall.
Partially loosen the nut, flat washer and spring washer of the two expansion bolts below.
Figure 4-8 Installing the Mounting Bracket

Step 3 Install the SUN2000 onto the mounting bracket. Step 4 Tighten nuts.
Figure 4-9 Installing the SUN2000

Step 5 (Optional) Install the anti-theft lock.

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4 Installation

Prepare an anti-theft lock suitable for the lock hole diameter (8 mm) by yourself. An outdoor waterproof lock is recommended. Keep the key to the anti-theft lock safe.
Figure 4-10 Installing the anti-theft lock

----End
4.4.2 Support-mounted Installation
Prerequisites
Prepare M6 stainless bolt assemblies (including flat washers, spring washers, and M6 bolts) with appropriate lengths as well as matched flat washers and nuts based on the support specifications.
Procedure
Step 1 Determine the hole positions based on the marking-off template, and then mark the hole positions using a marker.

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Figure 4-11 Determining hole positions

4 Installation

Step 2 Drill holes using a hammer drill.
You are advised to apply anti-rust paint on the hole positions for protection.
Figure 4-12 Drilling holes

Step 3 Secure the mounting bracket.

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Figure 4-13 Securing the mounting bracket

4 Installation

Step 4 Install the SUN2000 onto the mounting bracket. Step 5 Tighten the bolt assembly.
Figure 4-14 Installing the SUN2000

Step 6 (Optional) Install the anti-theft lock.

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4 Installation

Prepare an anti-theft lock suitable for the lock hole diameter (8 mm) by yourself. An outdoor waterproof lock is recommended. Keep the key to the anti-theft lock safe.
Figure 4-15 Installing the anti-theft lock

----End

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5 Electrical Connections

Precautions

5 Electrical Connections

Before connecting cables, ensure that the DC switch on the SUN2000 and all the switches connecting to the SUN2000 are OFF. Otherwise, the high voltage of the SUN2000 may result in electric shocks.

The equipment damage caused by incorrect cable connections is beyond the warranty scope.
Only certified electricians are allowed to connect cables. Operation personnel must wear proper PPE when connecting cables.
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-and-yellow cables are only used for PE).

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5.1 Preparing for Installation

5 Electrical Connections

Figure 5-1 SUN2000 cable connections (optional in dashed boxes)

If the Smart Dongle is configured, you are advised to install the Smart Dongle before connecting the signal cable.

Table 5-1 Component description

No.

Component Description

Source

PV module

A PV string is composed of the Prepared by the

PV modules connected in series. customer

The PV modules can work with

an optimizer.

The SUN2000 supports the input from two PV strings.

DC switch

Recommended: a PV circuit

Prepared by the

breaker with a rated voltage greater customer

than or equal to 1,100 V DC and a

rated current of 15 A.

Smart Dongle Supported models include:

WLAN Smart Dongle: SDongleA-01.

4G Smart Dongle: SDongleA-03.

Purchased from Huawei

SUN2000

Select a proper model based on

Purchased from

requirements.

Huawei

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5 Electrical Connections

No.

Component Description

Source

SmartLogger10 Select a proper model based on

Purchased from

00A

requirements.

Huawei

Electricity

The recommended electricity meter Purchased from

meter

model is DTSU666-H.

Huawei

Power grid

Choose a device that meets

scheduling

requirements of power grid

device

scheduling.

Provided by local power grid companies

AC switcha

Recommended: a three-phase AC Prepared by the

circuit breaker with a rated voltage customer

greater than or equal to 415 V AC

and a rated current of:

16 A (SUN2000-3KTL-M0, SUN2000-4KTL-M0, SUN2000-5KTL-M0, SUN2000-6KTL-M0)

25 A (SUN2000-8KTL-M0, SUN2000-10KTL-M0)

Note a: The SUN2000-8KTL-M0 and SUN2000-10KTL-M0 inverters are not applicable to Australia.

Table 5-2 Cable description

No. Name

DC input power cable

Type
Standard PV cable in the industry

(Optional) RS485

Two-core outdoor

communications cable shielded twisted pair

(used to cascade inverters cable

or connect to the RS485

signal port on the

SmartLogger)

Specifications
Conductor cross-sectional area: 4�6 mm2
Cable outer diameter: 4.5�7.8 mm
Conductor cross-sectional area: 0.2�1 mm2
Cable outer diameter: 4�11 mm

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5 Electrical Connections

No. Name

Type

Specifications

(Optional) RS485

Two-core outdoor

Conductor

communications cable shielded twisted pair

cross-sectional area:

(used to connect to the cable

0.2�1 mm2

RS485 signal port on devices such as the Smart Power Sensor and the energy storage device)

Note: When devices such as the Smart Power Sensor and the energy storage device

are both connected to

the inverter, use

0.2�0.5 mm2 cords.

Cable outer diameter: 4�11 mm

(Optional) Power grid Five-core outdoor cable Conductor

scheduling signal cable

cross-sectional area:

0.2�1 mm2

Cable outer diameter: 4�11 mm

AC output power cable Outdoor copper cable

Conductor

cross-sectional area:

4�6 mm2

Cable outer diameter: 10�21 mm

PE cable

Single-core outdoor copper cable

Conductor cross-sectional area 4 mm2

5.2 Connecting the PE cable
Precautions

Ensure that the PE cable is properly connected. If it is disconnected or loose, electric shocks may occur.
Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks may occur.
The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute for the PE point on the enclosure.
After the ground cable is installed, it is recommended that the silica gel or paint be applied to the ground terminal for protection.

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Additional Information
The SUN2000 has the grounding detection function. This function detects whether the SUN2000 is grounded properly before its startup, or whether the ground cable is disconnected when the SUN2000 is running. This function works under limited conditions. To ensure the safe operation of the SUN2000, ground the SUN2000 properly according to the connection requirements of the PGND cable. For some power grid types, if the output side of the inverter is connected to an isolation transformer, ensure that the inverter is properly grounded and set Isolation settings to Input not grounded, with a transformer to enable the inverter to run properly.
According to IEC62109, to ensure safe application in case of the ground cable is damaged or disconnected, connect the PE cable properly before the grounding detection function is disabled. Ensure that the PE cable meets at least one of the following requirements.
- The PE cable is a single-core outdoor copper cable with a conductor cross-sectional area of at least 10 mm 2.
- Use cables that have the same diameter as the AC output cable, and ground the PE terminal on the AC connector and the ground screw on the enclosure respectively.
In some countries and regions, additional ground cables are required for the SUN2000. In this case, use cables that have the same diameter as the AC output cable, and ground the PE terminal on the AC connector and the ground screw on the enclosure respectively.

Procedure
Step 1 Crimp the OT terminal.

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5 Electrical Connections

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

(1) Cable (4) OT terminal

(2) Core wire (5) Crimping tool

Step 2 Connect the PE cable. Figure 5-3 Connecting the PE cable

(3) Heat shrink tubing (6) Heat gun

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----End

5 Electrical Connections

5.3 Connecting the AC Output Power Cable

Precautions

A three-phase AC switch needs to be installed on the AC side of the SUN2000. To ensure that the SUN2000 can safely disconnect itself from the power grid when an exception occurs, select a proper overcurrent protection device in compliance with local power distribution regulations.

Do not connect loads between the SUN2000 and the AC switch directly connected to it.
The SUN2000 is integrated with a comprehensive residual current monitoring unit. Once detecting that the residual current exceeds the threshold, the SUN2000 immediately disconnects itself from the power grid.

If the external AC switch can perform earth leakage protection, the rated leakage action current should be greater than or equal to 100 mA.
If multiple SUN2000s connect to the general residual current device (RCD) through their respective external AC switches, the rated leakage action current of the general RCD should be greater than or equal to the number of SUN2000s multiplied by 100 mA.
A knife switch cannot be used as an AC switch.
Procedure
Step 1 Connect the AC output power cable to the AC connector.
Figure 5-4 Stripping requirements

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Ensure that the cable jacket is inside the connector. Ensure that the exposed core wire is totally inserted into the cable hole. Ensure that AC terminations provide firm and solid electrical connections. Failing to do so
may cause SUN2000 malfunction and damage to its AC connectors. Ensure that the cable is not twisted.
Figure 5-5 Three-core cable (L1, L2, and L3)

Figure 5-6 Four-core cable (L1, L2, L3, and PE)

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Figure 5-7 Four-core cable (L1, L2, L3, and N)

5 Electrical Connections

Figure 5-8 Five-core cable (L1, L2, L3, N, and PE)

The cable colors shown in the figures are for reference only. Select an appropriate cable according to local standards.
Step 2 Connect the AC connector to the AC output port.
Ensure that the AC connector is connected securely.

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Figure 5-9 Securing the AC connector

5 Electrical Connections

Step 3 Check the route of the AC output power cable. Figure 5-10 Cable route

----End
Disconnection
Disconnection can be performed in reverse order.
5.4 Connecting the DC input power cable
Precautions
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 DC SWITCH is set to the OFF position. Failure to do so could generate high voltage, which may cause electric shocks.
When the SUN2000 is operating, it is not allowed to operate the DC input power cable, such as connecting or disconnecting a PV string or a PV module in a PV string. Failing to do so may cause electric shocks.
If no PV string is connected to a DC input terminal of the SUN2000, do not remove the watertight cap from the terminal. Otherwise, the IP rating of the SUN2000 will be affected.

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Ensure that the following conditions are met. Otherwise, the SUN2000 may be damaged, or even a fire could happen.
PV modules connected in series in each PV string are of the same specifications.
The open-circuit voltage of each PV string is always lower than or equal to 1100 V DC.
The maximum short-circuit current of each PV string must be lower than or equal to 15 A.
The DC input power cable is correctly connected. The positive and negative terminals of a PV module are connected to corresponding positive and negative DC input terminals of the SUN2000.
If the DC input power cable is reversely connected, do not operate the DC switch and positive and negative connectors. Wait until the solar irradiance declines at night and the PV string current reduces to below 0.5 A, and then turn off the DC switch. Remove the positive and negative connectors to correct the polarity.

Because the output of the PV string connected to the SUN2000 cannot be grounded, ensure that the PV module output is insulated to ground.
During the installation of PV strings and the SUN2000, the positive or negative terminals of PV strings may be short-circuited to ground if power cables are not properly installed or routed. An AC or DC short circuit may occur and damage the device when the SUN2000 is operating. The caused device damage is not covered under any warranty.
Terminal Description
Figure 5-11 Terminals

(1) DC input terminals

(2) Battery terminals

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Figure 5-12 Correct wiring terminals

5 Electrical Connections

Procedure
Step 1 Connect the DC input power cable.
Before inserting the positive and negative connectors into the positive and negative DC input terminals of the SUN2000, check that the DC SWITCH is OFF.
Use the Amphenol Helios H4 PV connectors supplied with the SUN2000. If the PV connectors are lost or damaged, purchase the connectors of the same model. The device damage caused by incompatible PV connectors is not covered under any warranty.

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Cables with high rigidity, such as armored cables, are not recommended as DC input power cables, because poor contact may be caused by the bending of the cables.
Before assembling DC connectors, label the cable polarities correctly to ensure correct cable connections.
After crimping the positive and negative metal contacts, pull the DC input power cables back to ensure that they are connected securely.
Insert the crimped metal contacts of the positive and negative power cables into the appropriate positive and negative connectors. Then pull back the DC input power cables to ensure that they are connected securely.
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.
Figure 5-13 Crimping tool (H4TC0003)

(1) Locator
The DC voltage measurement range of the multimeter must be at least 1100 V. If the voltage is a negative value, the DC input polarity is incorrect and needs correction. If the voltage is greater than 1100 V, too many PV modules configured in the same string. Remove
some PV modules.

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Figure 5-14 Connecting the DC input power cable

5 Electrical Connections

If the DC input power cable is reversely connected and the DC SWITCH is set to the ON position, do not operate the DC SWITCH and positive and negative connectors. Otherwise, the device may be damaged. The caused device damage is not covered under any warranty. Wait until the solar irradiance declines and the PV string current drops to below 0.5 A. Then set the two DC SWITCH to the OFF position, remove the positive and negative connectors, and rectify the connection of the DC input power cable. ----End
Removing a DC connector
Before removing the positive and negative connectors, ensure that the DC SWITCH is OFF. To remove the positive and negative connectors from the SUN2000, insert an open-end wrench into the notch and press hard to remove the DC connector.
Figure 5-15 Removing a DC connector

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5.5 (Optional) Installing the Smart Dongle

5 Electrical Connections

Procedure

If the 4G Smart Dongle you purchase is configured with a SIM card, skip this step. If it is not configured with a SIM card, prepare a standard one (dimensions: 25 mm x 15 mm,
capacity 64 KB. When installing a SIM card, you can determine the SIM card installation direction based on the silk
screen and arrow mark on the slot. When being pressed into place, the SIM card will be locked, which means that the card is installed
correctly. To remove the SIM card, push it inwards. Then the SIM card springs out automatically. When reinstalling the 4G Smart Dongle, ensure that the buckle springs back in place.
Step 1 Install the Smart Dongle.
Figure 5-16 Installing the Smart Dongle.

----End
5.6 (Optional) Installing the Signal Cable
Communication port signal definitions

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When routing the signal cable, ensure that it is separate from the power cable and away from interfering sources to prevent communication from being affected.
The protection layer of the cable is in the connector. Cut off surplus core wires from the protection layer. Ensure that the core wires are completely inserted into the cable holes, and that the cable is securely connected.
Figure 5-17 Signal definitions

Pin Definiti on
1 485A1-1
3 485B1-1
5 PE 7 485A2
9 485B2
11 EN

Function
RS485A, RS485 differential signal+
RS485B, RS485 differential signal�
Shield layer grounding
RS485A, RS485 differential signal+
RS485B, RS485 differential signal�
Enable signal

Description Pin

Used to

cascadeinverters

or connect to the

RS485 signal

port on the

SmartLogger

N/A

Used to connect 8 to the RS485 signal port on devices such as the Smart Power Sensor and the 10 energy storage device

Definitio Function n

485A1-2

RS485A, RS485 differential signal+

485B1-2

RS485B, RS485 differential signal�

Shield layer

grounding

DIN1

Power grid scheduling dry contact

DIN2

Reserved. Used 12 to connect to the enable signal port on an energy storage device

DIN3

Description
Used to cascadeinverte rs or connect to the RS485 signal port on the SmartLogger
N/A
N/A

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Pin Definiti on
13 GND
15 DIN5

Function

Description

GND

N/A

Rapid shutdown Reserved. switch

5 Electrical Connections

Pin Definitio Function n
14 DIN4
16 GND

Description

When the RS485 communications cables of devices such as the Smart Power Sensor and the energy storage device are both connected to the inverter, 485A2 (pin 7), 485B2 (pin 9), and PE (pin 5) are shared.
When the enable signal cable of the energy storage device and the signal cable of the rapid shutdown switch are both connected to the inverter, GND (pin 13) is shared.
Communication Networking
Single Inverter+Smart Dongle Networking
Figure 5-18 Smart Dongle networking

In the Smart Dongle networking scenario, the SmartLogger1000A cannot be connected. The Smart Power Sensor is necessary for export limitation. Only the DTSU666-H Smart Power
Sensor (provided by Huawei) can be used.
Multiple Inverter+SmartLogger1000A Networking

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Figure 5-19 SmartLogger networking

5 Electrical Connections

In the SmartLogger1000A networking scenario, the Smart Dongle cannot be connected. A maximum of 80 devices can connect to a single SmartLogger1000A, such as inverters, Smart
Power sensor, and EMI. You are advised to connect fewer than 30 devices to each RS485 route. The Smart Power Sensor is necessary for export limitation. Select the Smart Power Sensor according
to the actual project. To ensure the system response speed, the Smart Power Sensor is recommended to be connected to a
COM port separately from inverter COM port.
5.6.1 Connecting the RS485 Communications Cable (Inverter Cascading)
Procedure
Step 1 Connect the signal cable to the signal cable connector.

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Figure 5-20 Installing the cable

5 Electrical Connections

Step 2 Connect the signal cable connector to the COM port. Figure 5-21 Securing the signal cable connector

----End
5.6.2 Connecting the RS485 Communications Cable (Smart Power Sensor)
Cable Connection
The following figure shows the cable connections between the inverter and the Smart Power Sensor.

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Figure 5-22 Cable connection

5 Electrical Connections

(1) Shielding layer of the signal cable
Connecting Only the Smart Power Sensor
Step 1 Connect the signal cable to the signal cable connector.

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Figure 5-23 Installing the cable

5 Electrical Connections

Step 2 Connect the signal cable to the COM port. Figure 5-24 Securing the signal cable connector
----End
Connecting the Smart Power Sensor and Energy Storage Device
Step 1 Connect the signal cable to the signal cable connector.

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Figure 5-25 Installing the cable

5 Electrical Connections

Step 2 Connect the signal cable to the COM port. Figure 5-26 Securing the signal cable connector

----End
5.6.3 Connecting the Power Grid Scheduling Signal Cable
Cable Connection
The following figure shows the cable connections between the inverter and the Ripple Control Device.

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Figure 5-27 Cable connection

5 Electrical Connections

Procedure
Step 1 Connect the signal cable to the signal cable connector.
Figure 5-28 Installing the cable

Step 2 Connect the signal cable to the COM port.

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Figure 5-29 Securing the signal cable connector

5 Electrical Connections

----End

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6 Commissioning

6.1 Check Before Power-On

Table 6-1 Installation checklist

No.

Check Item

SUN2000 installation

Smart Dongle

Cable layout

Cable tie

Grounding

Turn off the switches

Cable connections

Unused terminals and ports

Installation environment

Acceptance Criteria
The SUN2000 is installed correctly, securely, and reliably.
The Smart Dongle is installed correctly and securely.
Cables are routed properly as required by the customer.
Cable ties are secured evenly and no burr exists.
The ground cable is connected correctly, securely, and reliably.
The DC SWITCH and all the switches connected to the SUN2000 are set to OFF.
The AC output power cable and DC input power cable are connected correctly, securely, and reliably.
Unused terminals and ports are locked by watertight caps.
The installation space is proper, and the installation environment is clean and tidy, without foreign matter.

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6.2 Powering On the System
Precautions

6 Commissioning

Before turning on the AC switch between the SUN2000 and the power grid, use a multimeter set to the AC position to check that the AC voltage is within the specified range.
Procedure
Step 1 Turn on the AC switch between the SUN2000 and the power grid.

If you perform Step 2 before Step 1, the SUN2000 reports a Grid Loss alarm. The SUN2000 starts normally only after the fault is automatically rectified.
Step 2 Set the DC SWITCH at the bottom of the SUN2000 to the ON position.
Step 3 Wait for about 1 minute, and then observe the LED indicators of the inverter to check the running status.

Table 6-2 LED indicator description

Category

Status

Meaning

Running indication

LED 1 Steady green

LED 2 Steady green

N/A
The SUN2000 is operating in grid-tied mode.

Blinking green at Off long intervals (on for 1s and then off for 1s)

The DC is on and the AC is off.

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

The DC is on, the AC is on, and the SUN2000 is not exporting power to the power grid.

Off

Blinking green at DC is off and AC is on.

long intervals

Off

DC and AC are both off.

Blinking red at N/A short intervals (on for 0.2s and then off for 0.2s)

DC environmental alarm

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Category
Communication indication

Status

Meaning

N/A

Blinking red at AC environmental alarm

short intervals

(on for 0.2s and

then off for 0.2s)

Steady red

Fault

LED 3

N/A

Blinking green at short intervals (on for 0.2s and then off for 0.2s)

Communication is in progress. (When a mobile phone is connected to the SUN2000, the indicator first indicates that the phone is connected to the SUN2000): blinks green at long intervals.)

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

The mobile phone is connected to the SUN2000.

Off

There is no communication.

----End

6.3 Commissioning
6.3.1 Scenario 1: Single inverter + Smart Dongle
Downloading the App
Search for "FusionSolar" from the following app stores or scan the corresponding QR code, download the installation package, and install the FusionSolar app by following the instructions. Google Play (Android) App Store (iOS)

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Figure 6-1 FusionSolar QR code

6 Commissioning

The screenshots shown in the document are from FusionSolar 2.3.0. Data in the screenshots is for reference only. The actual screens prevail.
In Britain, only the FusionHome app can be used for commissioning. This document uses the FusionSolar app as an example to describe the commissioning method. For the FusionHome app, perform operations as required. Search for "FusionHome" from the following app stores or scan the corresponding QR code, download the installation package, and install the FusionHome app by following the instructions. Google Play (Android) App Store (iOS)
Figure 6-2 FusionHome QR code

The initial password for connecting the inverter WiFi is Changeme
Log in to the FusionHome app as installer. The initial password is 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.

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6 Commissioning

(Optional) Installer Account Registration
Creating the first installer account will generate a domain named after the company.

If you have an installer account, skip this step.
Figure 6-3 Creating the first installer account

To create multiple installer accounts for the same company, log in to the FusionSolar app and tap New User.
Figure 6-4 Creating multiple installer accounts for the same company

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Creating a PV Plant and an Account for User
Figure 6-5 Creating a PV Plant and an Account for User

6 Commissioning

For details, see the FusionSolar App Quick Guide. You can scan the QR code to obtain it.
6.3.2 Scenario 2: Multiple Inverters + SmartLogger1000A
See the Distributed PV Plants Connecting to Huawei Hosting Cloud Quick Guide (Distributed Inverters + SmartLogger1000A + RS485 Networking). You can scan the QR code to obtain it.
6.3.3 Other Scenarios
1. Access Inverter commissioning.

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Figure 6-6 Method 1: before login

6 Commissioning

Figure 6-7 Method 2: after login

2. Connect to the inverter WiFi. Log in as installer, and perform Quick settings.
When the inverter is directly connected to the mobile phone using the built-in antenna, the distance between the inverter and mobile phone must be less than 5 m without obstructions in between to ensure the communication quality between the FusionSolar app and inverter. The distance is for reference only and may vary depending on mobile phones and whether there are obstructions between the inverter and the mobile phone.
When connecting the SUN2000L to the FusionSolar app over a router, ensure that the mobile phone and inverter are in the WiFi coverage of the router and the SUN2000L is connected to the router.
The router supports WiFi (IEEE 802.11 b/g/n, 2.4 GHz) and the WiFi signal reaches the inverter.

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The WPA, WPA2, or WPA/WPA2 encryption mode is recommended for routers. Enterprise-level encryption is not supported (for example, public hotspots requiring authentication such as airport WiFi). WEP and WPA TKIP are not recommended because these two encryption modes have serious security defects. If the inverter cannot be connected using WEP, log in to the router and change the encryption mode to WPA2 or WPA/WPA2.

Figure 6-8 Quick settings

The initial password for connecting the inverter WiFi is Changeme The initial password of the installer is 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. To set more parameters, tap Parameter configuration.
3. (Optional) When multiple inverters are connected to a third-party data collector, set RS485 parameters.

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Figure 6-9 RS485 Settings

6 Commissioning

The RS485 addresses of different inverters must be different.
6.4 Powering Off the System
Precautions
After the SUN2000 is powered off, the remaining electricity and heat may still cause electric shocks or body burns. Therefore, put on protective gloves and operate the SUN2000 five minutes after the power-off.
Procedure
Step 1 Send a shutdown command from the app. Step 2 Turn off the AC switch between the SUN2000 and the power grid. Step 3 Set the DC SWITCH at the bottom of the SUN2000 to the OFF position. Step 4 Turn off the DC switch between the PV string and the SUN2000 if there is one.
----End

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7 Maintenance

7 Maintenance
7.1 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.

Before cleaning the system, connecting cables, and maintaining the grounding reliability, power off the system.

Table 7-1 Maintenance list

Check Detail Check Method

Maintenance Interval

System cleanliness

Check the heat sink for foreign matter or the Annual or every time an

overall health of the SUN2000.

abnormality is detected

System running Check the SUN2000 for damage or

status

deformation.

Annual

Electrical connections

Cables are securely connected.
Cables are intact, in particular, the parts touching the metallic surface are not scratched.

The first inspection is 6 months after the initial commissioning. From then on, the interval can be 6 to 12 months.

Grounding reliability

Check whether the ground terminal and ground cable are securely connected.

Annual

Sealing

Check whether all terminals and ports are properly sealed.

Annual

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7 Maintenance

7.2 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.

Table 7-2 Common alarms and troubleshooting measures

Alarm ID Alarm Name

Alarm Possible Cause Severity

Troubleshooting Suggestion

2001

High String Input Voltage

Major

Excessive PV modules are connected in series in the PV array. Therefore, the open-circuit voltage exceeds the maximum input voltage of the SUN2000.
Cause ID 1 = PV1
Cause ID 2 = PV2

Check the number of PV modules connected in series in the PV string, and ensure that the PV string open-circuit voltage is no greater than the maximum operating voltage of the SUN2000. After you correctly configure the PV array, the inverter alarm disappears automatically.

2002

DC Arc Fault

Major

The PV string power cable arcs or is in poor contact.
Cause ID 1 = PV1 Cause ID 2 = PV2

Check whether the string cables arc or are in poor contact.

2011 2012 2031

String

Major

Reversed

The PV string is reversely connected.
Cause ID 1 = PV1
Cause ID 2 = PV2

String Current Backfeed

Warning

Only a few PV modules are connected in series in the PV string. Therefore, the end voltage is lower than that of other PV strings.
Cause ID 1 = PV1
Cause ID 2 = PV2

Power grid phase wire short-circu it to PE

Major

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

Check whether the PV string is reversely connected to the SUN2000. If so, wait until the solar irradiance declines at night and the PV string current drops to below 0.5 A. Then, set the DC SWITCH to the OFF position, and correct the string polarity.
1. Check whether the PV modules connected in series in the PV string are enough. If not, add more modules.
2. Check whether the PV string is shaded.
3. Check whether the open-circuit voltage of the PV string is normal.
Check the impedance of the output phase wire to PE, locate the position with lower impedance and restore that.

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7 Maintenance

Alarm ID Alarm Name

2032

Grid Failure

2033

Grid Undervolt age

2034

Grid Overvolta ge

Alarm Severity Major Major
Major

Possible Cause

Troubleshooting Suggestion

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

1. Check the AC voltage.
2. Check whether the AC circuit is disconnected or whether the AC switch is off.

Cause ID = 1 The power grid voltage is below the lower threshold or the undervoltage duration exceeds the value specified by LVRT.
Cause ID = 1 The power grid voltage is beyond the upper threshold or the overvoltage duration exceeds the value specified by HVRT.

1. If the alarm occurs occasionally, 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 voltage is within the acceptable range. If no, contact the local power operator. If yes, log in to the mobile phone app, SmartLogger, or NMS to modify the grid undervoltage protection threshold with the consent of the local power operator.
3. If the fault persists for a long time, check the connection between the AC switch and the output power cable.
1. If the alarm occurs occasionally, 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 voltage is within the acceptable range. If no, contact the local power operator. If yes, log in to the mobile phone app, SmartLogger, or NMS to modify the grid overvoltage protection threshold with the consent of the local power operator.
3. Check whether the peak voltage of the power grid is too high. If the fault persists and cannot be rectified for a long time, contact the power operator.

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7 Maintenance

Alarm ID Alarm Name

Alarm Severity

2035

Unbalance Major d Grid Voltage

2036

Grid

Major

Overfrequ

ency

2037

Grid

Major

Underfreq

uency

Possible Cause Cause ID = 1 The difference between grid phase voltages exceeds the upper threshold.
Cause ID = 1 Power grid exception: The actual power grid frequency is higher than the standard requirement for the local power grid.
Cause ID = 1 Power grid exception: The actual power grid frequency is lower than the standard requirement for the local power grid.

Troubleshooting Suggestion
1. If the alarm occurs occasionally, 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 voltage is within the acceptable range. If no, contact the local power operator.
3. If the fault persists for a long time, check the connection between the AC switch and the output power cable.
1. If the alarm occurs occasionally, 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, log in to the mobile phone app, SmartLogger, or NMS to modify the grid overfrequency protection threshold with the consent of the local power operator.
1. If the alarm occurs occasionally, 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, log in to the mobile phone app, SmartLogger, or NMS to modify the grid underfrequency protection threshold with the consent of the local power operator.

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7 Maintenance

Alarm ID Alarm Name

Alarm Severity

2038

Unstable Major Grid Frequency

2039

Output

Major

Overcurre

2040

Output DC Major Componen t Overhigh

2051

Abnormal Major Residual Current

Possible Cause
Cause ID = 1 Power grid exception: The actual grid frequency change rate does not comply with the local power grid standard.
Cause ID = 1 The power grid voltage drops dramatically or the power grid is short-circuited. As a result, the SUN2000 transient output current exceeds the upper threshold and therefore the protection is triggered.
Cause ID = 1 The DC component of the SUN2000 output current exceeds the specified upper threshold.
Cause ID = 1 The insulation impedance of the input side to PE decreases when the SUN2000 is operating.

Troubleshooting Suggestion
1. If the alarm occurs occasionally, 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 frequency is within the acceptable range. If not, contact the local power operator.
1. The SUN2000 detects its external working conditions in real time. After the fault is rectified, it 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 your dealer or Huawei technical support.
1. The SUN2000 detects its external working conditions in real time. After the fault is rectified, it automatically recovers.
2. If the alarm occurs frequently, contact your dealer or Huawei technical support.
1. If the alarm occurs occasionally, 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 whether the impedance of the PV string to ground is excessively low.

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7 Maintenance

Alarm ID Alarm Name

Alarm Possible Cause Severity

Troubleshooting Suggestion

2061 2062 2063

Abnormal Major Grounding

Low

Major

Insulation

Resistance

Overtempe Minor rature

Cause ID = 1 The N cable or ground
cable is not connected. When a PV array is
grounded, the inverter output is not connected to an isolation transformer.
Cause ID = 1 PV arrays are
short-circuited with PE. The ambient air of the PV
array is damp and the insulation between the PV array and the ground is poor.
Cause ID = 1 The SUN2000 is installed
in a place with poor ventilation. The ambient temperature is too high. The SUN2000 is not working properly.

Power off the inverter and check the following items:
1. Check whether the PE cable of the SUN2000 is connected properly.
2. If the inverter is connected to the TN power grid, check whether the N cable is properly connected and whether the voltage of the N cable to ground is normal.
3. Check whether the output is connected to an isolation transformer. If yes, set Grounding inspection to Disable through the mobile phone app, SmartLogger, or NMS.
1. Check the output resistance of the PV array to ground. If there is a short circuit or lack of insulation, rectify it.
2. Check that the PE cable of 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, log in to the mobile phone app, SmartLogger, or NMS and reset the insulation impedance protection threshold.
Check the ventilation and ambient temperature of the SUN2000 installation position.
If the ventilation is poor or the ambient temperature exceeds the upper threshold, improve the ventilation and heat dissipation.
If the ventilation and ambient temperature both meet requirements, contact your dealer or Huawei technical support.

2064

Device Fault

Major

Cause ID = 1�12
An unrecoverable fault has occurred 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 your dealer or Huawei technical support.

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7 Maintenance

Alarm ID Alarm Name

2065

Upgrade Failed or Software Version Unmatch

2066

License Expired

61440

Monitorin g Unit Faulty

2067

Faulty Power Collector

Alarm Severity Minor
Minor Minor
Major

Possible Cause

Troubleshooting Suggestion

Cause ID = 1, 2 and 4

1. Perform an upgrade again.

The upgrade does not complete 2. If the upgrade fails several times,

normally.

contact your dealer.

NOTE
Upgrade the inverter again if it is stuck in initialization state without generating any alarms and cannot be restored to the normal state during the upgrade when the PV inputs are disconnected and reconnected next time.

Cause ID = 1

1. Apply for a new certificate.

The privilege certificate has 2. Load the new certificate.

entered the grace period.

The privilege feature will be invalid soon.

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

Turn off the AC output switch and then the DC input switch. After 5 minutes, turn on the AC output switch and then the DC input switch. If the fault persists, replace the board, If the upgrade fails several times, contact your dealer or Huawei technical support.

Cause ID = 1
The power meter communication is interrupted.

1. Check that the power meter settings are based on the actual model.
2. Check that the communications parameters for the power meter are the same as the SUN2000 RS485 parameter settings.
3. Check that the power meter is powered on, and the RS485 cable is connected correctly.

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Alarm ID Alarm Name

2072

Transient AC Overvolta ge

Alarm Severity
Major

Possible Cause
Cause ID = 1 The inverter detects that the phase voltage exceeds the transient AC overvoltage protection threshold.

7 Maintenance
Troubleshooting Suggestion
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-tied voltage exceeds the upper threshold and have obtained the consent of the local power operator, modify the overvoltage protection threshold through the mobile phone app, SmartLogger, or NMS.
3. Check whether the peak power grid voltage exceeds the upper threshold.

Contact your dealer or Huawei technical support if the measures listed in the Troubleshooting Suggestion column have been taken but the fault persists.

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8 Handling the Inverter

8 Handling the Inverter
8.1 Removing the SUN2000
Before removing the SUN2000, disconnect both the AC and DC power supplies. After powering off the SUN2000, wait at least 5 minutes before performing operations on the SUN2000. 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.
8.2 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.
8.3 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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9 Technical Data

The SUN2000-8KTL-M0 and SUN2000-10KTL-M0 inverters are not applicable to Australia.

Efficiency

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Maximum efficiency

98.20%

98.30%

98.40%

98.60%

European efficiency

96.70%

97.10%

97.50%

97.70%

98.00%

98.10%

Input

Technical SUN2000-3 Specificatio KTL-M0 ns

Maximum 1100 V input voltagea

Operating
voltage rangeb

140�980 V

Maximum 11 A input current (per MPPT)

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

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9 Technical Data

Technical SUN2000-3 Specificatio KTL-M0 ns

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Maximum short-circuit current (per MPPT)

15 A

Maximum 0 A inverter backfeed current to the PV array

Minimum startup voltage

200 V

Full-load

140�850 V

MPPT

voltage range

190�850 V

240�850 V

285�850 V

380�850 V

470�850 V

Rated input 600 V voltage

Number of 2 input routes

Number of 2 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

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Rated active 3000 W power

4000 W

5000 W

6000 W

8000 W

10,000 W

Maximum apparent power

3300 VA

4400 VA

5500 VA

6600 VA

8800 VA

11,000 VA

Maximum active power (cos = 1)

3300 W

4400 W

5500 W

6000 W

8800 W

11,000 W

Rated output 220/380 V, 230/400 V, 3W+(N)+PE voltage

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9 Technical Data

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

Rated output current

4.6 A (380 V)/4.4 A (400 V)

6.1 A (380 V)/5.8 A (400 V)

Maximum 5.1 A output current

6.8 A

Adapted power grid frequency

50/60 Hz

Power factor 0.8 leading... 0.8 lagging

Maximum total harmonic distortion (rated power)

< 3%

SUN2000-5 KTL-M0
7.6 A (380 V)/7.3 A (400 V)
8.5 A

SUN2000-6 KTL-M0
9.1 A (380 V)/8.7 A (400 V)
10.1 A

SUN2000-8 KTL-M0
12.2 A (380 V)/11.6 A (400 V)
13.5 A

SUN2000-1 0KTL-M0
15.2 A (380 V)/14.5 A (400 V)
16.9 A

Protection and Feature

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Input DC

Yes

switch

Anti-islandin Yes g protection

Output

Yes

overcurrent

protection

Output

Yes

short-circuit

protection

Output

Yes

overvoltage

protection

Input reverse Yes connection protection

PV string

Yes

fault

detection

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9 Technical Data

Technical SUN2000-3 Specificatio KTL-M0 ns

DC surge

Yes

protection

AC surge

Yes

protection

Insulation

Yes

resistance

detection

Residual

Yes

current

monitoring

unit (RCMU)

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Display and Communication

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Display

LED indicators; WLAN+app

RS485

Yes

Communicati (Optional) WLAN/4G ons expansion module

Remote dry Yes contact scheduling

Common Parameters

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

Dimensions 525 mm x 470 mm x 166 mm (W x H x D)

Net weight 17 kg (with hanging kits, without mounting brackets)

Operating

�25�C to +60�C

temperature

Cooling mode Natural convection

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9 Technical Data

Technical Specificatio ns

SUN2000-3 KTL-M0

SUN2000-4 KTL-M0

SUN2000-5 KTL-M0

Highest operating altitude

0�4000 m (derated above 3000 m)

Relative humidity

0%�100% RH

Input terminal Amphenol Helios H4

Output terminal

Waterproof quick-connect terminal

IP rating

IP65

Topology

No transformer

SUN2000-6 KTL-M0

SUN2000-8 KTL-M0

SUN2000-1 0KTL-M0

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A Grid Codes

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

Table A-1 Grid Codes

No.

Grid Codes

VDE-AR-N-4105

UTE C 15-712-1 (A)

UTE C 15-712-1 (B)

UTE C 15-712-1 (C)

VDE 0126-1-1-BU

VDE 0126-1-1-GR (A)

VDE 0126-1-1-GR (B)

G59-England

G59-Scotland

G83-England

G83-Scotland

CEI0-21

EN50438-CZ

RD1699/661

EN50438-NL

C10/11

Description Germany low-voltage power grid France mainland low-voltage power grid France island power grid (230 V 50 Hz) France island power grid (230 V 60 Hz) Bulgaria low-voltage power grid Greece mainland low-voltage power grid Greece island low-voltage power grid England 230 V power grid (I > 16 A) Scotland 240 V power grid (I > 16 A) England 230 V power grid (I < 16 A) England 240 V power grid (I < 16 A) Italy low-voltage power grid Czech Republic low-voltage power grid Spain low-voltage power grid Netherlands low-voltage power grid Belgium low-voltage power grid

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No.

Grid Codes

AS4777

IEC61727

User-defined (50 Hz)

User-defined (60 Hz)

CEI0-16

TAI-PEA

TAI-MEA

EN50438-TR

Philippines

NRS-097-2-1

KOREA

IEC61727-60Hz

ANRE

EN50438_IE

PO12.3

Egypt ETEC

CLC/TS50549_IE

Jordan-Transmission

NAMIBIA

ABNT NBR 16149

SA_RPPs

INDIA

ZAMBIA

Chile

Malaysian

KENYA_ETHIOPIA

NIGERIA

DUBAI

A Grid Codes
Description Australia low-voltage power grid IEC61727 low-voltage power grid (50 Hz) Reserved Reserved Italy low-voltage power grid Thailand low-voltage power grid (PEA) Thailand low-voltage power grid (MEA) Turkey low-voltage power grid Philippines low-voltage power grid South Africa low-voltage 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 medium-voltage power grid Ireland low-voltage power grid Jordan low-voltage power grid Namibia low-voltage 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 power grid and Ethiopia low-voltage power grid Nigeria low-voltage power grid Dubai low-voltage power grid

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No.

Grid Codes

Northern Ireland

Cameroon

Jordan-Distribution

LEBANON

TUNISIA

AUSTRALIA-NER

SAUDI

Israel

Chile-PMGD

VDE-AR-N4120_HV

CHINA-LV220/380

Vietnam

TAIPOWER

OMAN

KUWAIT

BANGLADESH

CHILE_NET_BILLING

BAHRAIN

Fuel-Engine-Grid

Fuel-Engine-Grid-60Hz

ARGENTINA

Mauritius

EN50438-SE

A Grid Codes
Description Northern Ireland low-voltage power grid Cameroon low-voltage power grid Jordan power distribution network low-voltage power grid Lebanon low-voltage power grid Tunisia low-voltage power grid Australia NER standard low-voltage power grid Saudi Arabia low-voltage power grid Israel low-voltage power grid Chile PMGD low-voltage power grid VDE41200 standard low-voltage power grid China low-voltage power grid Vietnam low-voltage power grid Taiwan low-voltage power grid Oman low-voltage power grid Kuwait low-voltage power grid Bangladesh low-voltage power grid Chile NetBilling low-voltage power grid Bahrain low-voltage power grid DG hybrid low-voltage power grid (50 Hz) DG hybrid low-voltage power grid (60 Hz) Argentina low-voltage power grid Mauritius low-voltage power grid Sweden low-voltage power grid

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B Setting Dry Contact Scheduling Parameters

Scenario 1: Single inverter + Smart Dongle
Prerequisites
You have logged in to the app as installer. The initial password is 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.
Procedure
Step 1 Set dry contact scheduling parameters.

Set Dry contact scheduling to

, and set Active power control and Reactive power control.

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B Setting Dry Contact Scheduling Parameters

Figure B-1 Setting dry contact scheduling parameters

----End
Scenario 2: Multiple Inverters + SmartLogger1000A
See the SmartLogger1000A User Manual.

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C Setting Export Limitation Parameters

C Setting Export Limitation Parameters
Scenario 1: Single inverter + Smart Dongle
Prerequisites
You have logged in to the app as installer. The initial password is 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.
Procedure
Step 1 Set export limitation parameters.

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Figure C-1 Setting export limitation parameters

C Setting Export Limitation Parameters

Table C-1 Setting export limitation parameters

Parameter

Value Range

Description

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Parameter Control mode
Closed-loop controller

C Setting Export Limitation Parameters

Value Range

Description

Not restricted

If this parameter is set to

Grid connected with zero power
Power-limited grid connected

Not restricted, the SUN2000 output power is not limited. The SUN2000 can export its rated power to the power

grid.

If this parameter is set to Grid connection with zero power and the SUN2000 is connected to a power meter, the output power of the SUN2000 is supplied only to the local load, but not the power grid.

If this parameter is set to Power-limited grid connection and the SUN2000 is connected to a Smart power sensor, the SUN2000 supplies power limited based on the setting of Grid-tied Point Power to the power grid.

External controller Inverter

Set this parameter to External controller when the SmartLogger1000A is connected.
If multiple inverters are cascaded, set this parameter to External controller.
If a single inverter is used, set this parameter to Inverter.

----End
Scenario 2: Multiple Inverters + SmartLogger1000A
See the SmartLogger1000A User Manual.

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D Setting Voltage Rise Suppression Q-U Curve

D Setting Voltage Rise Suppression Q-U Curve
Scenario 1: Single inverter + Smart Dongle
Prerequisites
You have logged in to the app as installer. The initial password is 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.
Procedure
Step 1 Set voltage rise suppression Q-U curve parameters.

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D Setting Voltage Rise Suppression Q-U Curve

Figure D-1 Setting voltage rise suppression Q-U curveparameters

----End
Scenario 2: Multiple Inverters + SmartLogger1000A
See the SmartLogger1000A User Manual.

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E Starting AFCI Check

E Starting AFCI Check
Prerequisites
You have logged in to the app as installer. The initial password is 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.
Procedure
Step 1 On the Home screen, choose Device maintenance > Start AFCI check and perform the required operation.
Figure E-1 Start AFCI check

----End

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F IPS Test (for Italy CEI0-21 Grid Code only)

Prerequisites
You have logged in to the app as installer. The initial password is 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.

Context

The Italy CEI0-21 grid code requires an IPS test for the SUN2000. During the IPS test process, the SUN2000 consecutively tests the protection thresholds and time for 10-min overvoltage, level 1 overvoltage, level 1 undervoltage, level 1 overfrequency, and level 1 underfrequency. The SUN2000 shuts down after the IPS test starts, and it restarts after the IPS test is successful.

Procedure
Step 1 On the Home screen, choose Device maintenance > IPS test to access the IPS test screen.

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Figure F-1 IPS test

F IPS Test (for Italy CEI0-21 Grid Code only)

Step 2 Choose to start the S1 or S2 check as required. The default check type is S2. To start the S2 check, you need to set External Signal or Local Command.

Table F-1 IPS test type description

IPS Test Type

Description

The level 1

overfrequency

protection threshold

is 50.5 Hz and the

level 1

underfrequency

protection threshold

is 49.5 Hz.

The level 1

overfrequency

protection threshold

is 51.5 Hz and the

level 1

underfrequency

protection threshold

is 47.5 Hz.

External Signal Setting

Local Command Setting

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IPS Test Type S2 (default)
S2

F IPS Test (for Italy CEI0-21 Grid Code only)

Description
The level 1 overfrequency protection threshold is 51.5 Hz and the level 1 underfrequency protection threshold is 47.5 Hz.
The level 1 overfrequency protection threshold is 51.5 Hz and the level 1 underfrequency protection threshold is 47.5 Hz.

External Signal Setting

Local Command Setting

Step 3 Tap Start to start the IPS test. After the IPS test is complete, IPS State is displayed as IPS state success. Tap Reports in the upper right corner of the IPS test screen to view IPS Self-Check Report.
----End

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G Acronyms and Abbreviations

A ACDU

alternating current distribution unit

C CCO

central controller

H HVRT

high voltage ride-through

L LED LVRT

light emitting diode low voltage ride-through

M MPP MPPT

maximum power point maximum power point tracking

photovoltaic

R RCD

residual current device

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WEEE

G Acronyms and Abbreviations waste electrical and electronic equipment

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