Huawei SUN2000 Series User manual

SUN2000 Smart PV Optimizer

User Manual

Issue 03

Date 2022-09-20

HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Digital Power Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are the property 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

Digital Power Technologies Co., Ltd. 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

specied 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 eort 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 Digital Power Technologies Co., Ltd.

Address: Huawei Digital Power Antuoshan Headquarters

Futian,Shenzhen 518043

People's Republic of China

Website: https://e.huawei.com

About This Document

Purpose

This document describes the functions, electrical specications, and structure of

the smart photovoltaic (PV) optimizer.

Figures provided in this document are for reference only.

Intended Audience

This document is intended for:

● Sales engineers

● Technical support engineers

● Maintenance engineers

Symbol Conventions

The symbols that may be found in this guide are dened as follows.

Symbol Description

Indicates a hazard with a high level of risk which, if

not avoided, will result in death or serious injury.

Indicates a hazard with a medium level of risk which,

if not avoided, could result in death or serious injury.

Indicates a hazard with a low level of risk which, if

not avoided, could result in minor or moderate

injury.

Indicates a potential hazard 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.

SUN2000 Smart PV Optimizer

User Manual About This Document

Symbol Description

Supplements the important information in the main

text.

NOTE is used to address information not related to

personal injury, equipment damage, and

environment deterioration.

Change History

Changes between document issues are cumulative. The latest document issue

contains all updates made in previous issues.

Issue 03 (2021-09-20)

● Updated 5.1 SUN2000-600W-P Technical Specications.

● Updated 5.2 SUN2000-450W-P Technical Specications.

● Updated 5.3 SUN2000-450W-P2 Technical Specications.

Issue 02 (2021-03-25)

● Updated 2.1 Overview.

● Updated 5.1 SUN2000-600W-P Technical Specications.

● Updated 5.3 SUN2000-450W-P2 Technical Specications.

Issue 01 (2021-10-30)

This issue is the rst ocial release.

SUN2000 Smart PV Optimizer

User Manual About This Document

Contents

About This Document................................................................................................................ ii

1 Safety Precautions...................................................................................................................1

2 Product Introduction...............................................................................................................4

2.1 Overview.................................................................................................................................................................................... 4

2.2 Structure..................................................................................................................................................................................... 5

2.3 Application Scenarios............................................................................................................................................................. 7

2.4 Conguration Principles........................................................................................................................................................ 8

3 Smart PV Solution Documentation...................................................................................11

4 System Maintenance............................................................................................................ 12

4.1 Setting the Physical Layout of the Smart PV Optimizers....................................................................................... 12

4.2 Detecting Optimizer Disconnection................................................................................................................................14

4.3 Rapid Shutdown.................................................................................................................................................................... 15

4.4 Troubleshooting.....................................................................................................................................................................16

4.5 Replacing an Optimizer...................................................................................................................................................... 17

5 Technical Specications....................................................................................................... 19

5.1 SUN2000-600W-P Technical Specications................................................................................................................. 19

5.2 SUN2000-450W-P Technical Specications................................................................................................................. 20

5.3 SUN2000-450W-P2 Technical Specications...............................................................................................................22

A Acronyms and Abbreviations............................................................................................. 24

SUN2000 Smart PV Optimizer

User Manual Contents

1 Safety Precautions

General Safety

● Follow the precautions and special safety instructions provided by Huawei

when operating this product. Installation or maintenance personnel must be

well trained, fully understand all safety precautions, and be able to correctly

perform all operations. Huawei will not be liable for any consequences that

may arise due to violations of general safety requirements or safety standards

concerning the usage of the equipment.

● Before performing operations, read through the safety precautions to prevent

accidents. The information provided under the "NOTICE", "CAUTION",

"WARNING", and "DANGER" headings within this manual is not intended to

cover all applicable safety policies, and instead acts as a supplement to the

comprehensive safety information provided.

● Follow local laws and regulations when operating the equipment. The safety

instructions in this document are considered supplementary to local laws and

regulations.

● Do not operate the equipment or cables during thunderstorms.

● Before operating the product, remove any conductors such as jewelry or

watches.

● Use insulated tools during operations.

● Tighten screws using a torque wrench, and mark them in red and blue for

double-check. Installation personnel should mark tightened screws in blue.

Inspection personnel should conrm that the screws are tightened and then

mark them in red. If screws or bolts used to secure the equipment are not

tightened to the required torque, the equipment may fall o the mounting

kits.

● Follow specied procedures during installation and maintenance. Do not

modify the equipment structure or the recommended installation procedures

without prior consent from the manufacturer.

● Install the product in strict accordance with the quick guide.

Declaration

Huawei will not be liable for any consequences in any of the following

circumstances:

SUN2000 Smart PV Optimizer

User Manual 1 Safety Precautions

● Damage during transportation

● Storage conditions that do not meet the requirements specied in this

document

● Incorrect installation or use

● Installation or use by unqualied personnel

● Failure to follow the operation instructions and safety precautions on the

product and in this document

● Operation beyond the conditions specied in this document

● Operation beyond the specied parameter ranges

● Unauthorized modications to the product or software code or removal of the

product

● Equipment damage due to force majeure (such as lightning, re, and storms)

● Warranty expired and not extended

● Installation or use in environments which are not specied in relevant

international standards

Personnel Requirements

Only qualied electricians are allowed to install, connect cables for, maintain,

troubleshoot, and replace the optimizer.

● Receive professional training.

● Read through this document and understand all safety precautions.

● Get familiar with the safety specications about the electrical system.

● Understand the composition and working principles of the grid-tied PV power

system and local regulations.

● Wear proper personal protective equipment (PPE).

Label Protection

● Do not scrawl or damage any warning labels on the optimizer because these

labels contain important information about safe operation.

● Do not scrawl or damage the nameplate on the back of the optimizer

because it contains important product information.

System Installation

● Ensure that the optimizer is not powered on during the installation.

● Reserve appropriate clearances around the optimizer for installation and heat

dissipation.

Electrical Connections

D ANGER

Before connecting cables, ensure that the optimizer is not damaged. Otherwise,

electric shocks or re may occur.

SUN2000 Smart PV Optimizer

User Manual 1 Safety Precautions

● Ensure that all electrical connections comply with local electrical standards.

● Ensure that the cables used in a grid-tied PV power system are properly

connected and insulated and meet specications.

● The output wiring terminals of the optimizer are not hot-swappable. If the

terminals are hot-swapped, the optimizer may be damaged.

Operation

D ANGER

High voltage from the optimizer in operation may cause an electric shock,

resulting in serious property damage, injury, or death. Strictly comply with the

safety precautions in this document and other related documents when operating

the optimizer.

● Do not touch the optimizer in operation as its surface temperature is high and

may cause burning.

● When operating the equipment, comply with local laws and regulations.

Maintenance and Replacement

D ANGER

High voltage from the optimizer in operation may cause an electric shock,

resulting in serious property damage, injury, or death. Before maintenance, power

o the optimizer and strictly comply with the safety precautions in this document

and other related documents when operating the optimizer.

● Maintain the optimizer with proper understanding of this document and

appropriate tools and testing equipment.

● Place temporary warning signs or erect fences to prevent unauthorized access

to the maintenance site.

● The optimizer can be powered on only after all faults are rectied. Otherwise,

faults may escalate or equipment may be damaged.

● Observe ESD precautions and wear ESD gloves during maintenance.

SUN2000 Smart PV Optimizer

User Manual 1 Safety Precautions

2 Product Introduction

2.1 Overview

The smart PV optimizer is a DC to DC converter which implements maximum

power point tracking (MPPT) of each PV module to improve the energy yield of

the PV system. It enables module-level shutdown and monitoring, and supports

long-string design.

Functions and Features

● Module-level MPPT: Implements maximum power point tracking of each PV

module to improve the energy yield of the PV system.

● Module-level shutdown: Adjusts the module output voltage to a safe range

when the output is disconnected or the inverter shuts down.

● Module-level monitoring: Monitors the operating status of each PV module.

● Long PV string supported: If all PV modules are congured with optimizers, a

PV string can contain more PV modules than conventional PV strings.

Model

This document involves the following product models:

● SUN2000-600W-P (Long input cable / Short input cable)

● SUN2000-450W-P

● SUN2000-450W-P2

Figure 2-1 Model description (The SUN2000-600W-P optimizer is used as an

example)

SUN2000 Smart PV Optimizer

User Manual 2 Product Introduction

Optimizer Model Rated Input

Power

Input Cable

Length

Output Cable

Length

SUN2000-600W-P (Long input cable) 600 W 1000 mm 1300 mm

SUN2000-600W-P (Short input cable) 600 W 150 mm 1300 mm

SUN2000-450W-P 450 W 150 mm 1200 mm

SUN2000-450W-P2 450 W 150 mm 1300 mm

2.2 Structure

Optimizer Ports

Figure 2-2 Ports

(1) Output port (positive) (2) Output port (negative)

(3) Input port (negative) (4) Input port (positive)

SUN2000 Smart PV Optimizer

User Manual 2 Product Introduction

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