User Manual (with PID Modules) - Huawei Technical Support

This document describes the SmartACU2000D smart array controller (SACU for short), which is an outdoor cabinet, in terms of its installation, ...

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SmartACU2000D Smart Array Controller
User Manual (with PID Modules)

Issue Date

01 2020-02-14

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2020. 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
https://e.huawei.com

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SmartACU2000D Smart Array Controller User Manual (with PID Modules)

About This Document

Purpose

This document describes the SmartACU2000D smart array controller (SACU for short), which is an outdoor cabinet, in terms of its installation, electrical connections, commissioning, and maintenance. Before installing and operating an SACU, closely read this manual to get familiar with the functions and features of the device as well as the precautions.
Figures used in this document are for reference only.

Intended Audience
This document is intended for photovoltaic (PV) plant operators and qualified electricians.

Symbol Conventions

The symbols that may be found in this document are defined 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 potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury.
Supplements the important information in the main text. NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Issue 01 (2020-02-14)

SmartACU2000D Smart Array Controller User Manual (with PID Modules)

About This Document

Change History
Updates between document issues are cumulative. The latest document issue contains all the changes in earlier issues.
Issue 01 (2020-02-14)
This issue is used for first office application (FOA).

Issue 01 (2020-02-14)

iii

SmartACU2000D Smart Array Controller User Manual (with PID Modules)

Contents

About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
1.1 General Safety .............................................................................................................................................................. 1 1.2 Personnel Requirements ............................................................................................................................................... 2 1.3 Electrical Safety............................................................................................................................................................ 3 1.4 Installation Environment Requirements ....................................................................................................................... 4 1.5 Mechanical Safety ........................................................................................................................................................ 4 1.6 Commissioning ............................................................................................................................................................. 5 1.7 Maintenance and Replacement ..................................................................................................................................... 5
2 Overview.........................................................................................................................................7
2.1 Model............................................................................................................................................................................ 7 2.2 Product Introduction ..................................................................................................................................................... 8 2.3 Appearance ................................................................................................................................................................. 10 2.3.1 Product Appearance ................................................................................................................................................. 10 2.3.2 Enclosure Signs ....................................................................................................................................................... 12 2.4 Product Composition .................................................................................................................................................. 13 2.5 Working Principles...................................................................................................................................................... 18 2.6 Configuration in Different Scenarios .......................................................................................................................... 21 2.6.1 Fiber Ring Network ................................................................................................................................................. 21 2.6.2 4G LTE .................................................................................................................................................................... 24
3 Storage Requirements ................................................................................................................ 27
4 System Installation ..................................................................................................................... 28
4.1 Checking Before Installation ...................................................................................................................................... 28 4.2 Tools ........................................................................................................................................................................... 28 4.3 Installation Requirements ........................................................................................................................................... 30 4.4 Installing the Cabinet .................................................................................................................................................. 30 4.4.1 Installing the Mounting Bracket .............................................................................................................................. 30 4.4.2 Mounting the Cabinet .............................................................................................................................................. 33 4.5 Installing the Components .......................................................................................................................................... 34 4.5.1 Opening the Main Cabinet Door.............................................................................................................................. 34 4.5.2 (Optional) Installing the SmartModule .................................................................................................................... 34

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Contents

4.5.3 (Optional) Installing the Ethernet Switch ................................................................................................................ 36 4.5.4 (Optional) Installing the 24 V Power Module.......................................................................................................... 37 4.5.5 Installing the PoE Module ....................................................................................................................................... 38 4.5.6 (Optional) Installing the PoE SPD ........................................................................................................................... 39
5 Electrical Connections ................................................................................................................ 41
5.1 Selecting a Connection Mode ..................................................................................................................................... 41 5.1.1 Common Connection ............................................................................................................................................... 42 5.1.2 Connection Through a Tube..................................................................................................................................... 42 5.2 Crimping an OT Terminal........................................................................................................................................... 44 5.3 Connecting the PE Cable ............................................................................................................................................ 44 5.4 Connecting the Communications Cables for the Fiber Ring Network........................................................................ 45 5.5 Connecting the 4G LTE Cable (with a PoE SPD)....................................................................................................... 50 5.6 Connecting the 4G LTE Cable (Without a PoE SPD) ................................................................................................. 53 5.7 Connecting the Three-Phase AC Power Cable............................................................................................................ 55 5.8 Connecting the Peripheral RS485 Communications Cables ....................................................................................... 56 5.9 (Optional) Connecting the Peripheral Network Cable ................................................................................................ 58 5.10 (Optional) Connecting the DC Output Power Cable to the 24 V Power Module ..................................................... 59 5.11 Connecting the Single-Phase Power Cable ............................................................................................................... 60 5.12 Connecting DO/DI/AI Cables................................................................................................................................... 61
6 System Commissioning ............................................................................................................. 63
6.1 Checking Before Power-On ........................................................................................................................................ 63 6.2 Powering On the System............................................................................................................................................. 63 6.3 Closing the Cabinet Door ........................................................................................................................................... 64 6.4 Powering Off the System ............................................................................................................................................ 64
7 System Maintenance................................................................................................................... 66
7.1 Routine Maintenance .................................................................................................................................................. 66 7.2 Troubleshooting .......................................................................................................................................................... 67 7.3 Component Replacement ............................................................................................................................................ 69 7.3.1 Replacing the Single/Three-Phase SPD ................................................................................................................... 69 7.3.2 Replacing the Knife Fuse Switch............................................................................................................................. 70 7.3.3 Replacing the Fuse of a Knife Fuse Switch ............................................................................................................. 71 7.3.4 Replacing the Single-Phase Input Switch ................................................................................................................ 71 7.3.5 Replacing the SmartMBUS CCO Module ............................................................................................................... 72 7.3.6 Replacing the SmartLogger ..................................................................................................................................... 73 7.3.7 Replacing the SmartModule .................................................................................................................................... 74 7.3.8 Replacing the Power Adapter .................................................................................................................................. 76 7.3.9 Replacing the PID Module ...................................................................................................................................... 76 7.3.10 Replacing the PID Module Switch ........................................................................................................................ 78 7.3.11 Replacing the Fiber Adapter .................................................................................................................................. 79 7.3.12 Replacing the USB Port ......................................................................................................................................... 80

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Contents

8 Technical Specifications ............................................................................................................ 81 A Acronyms and Abbreviations..................................................................................................83

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1 Safety Precautions

1.1 General Safety

Statement

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

General Requirements

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1 Safety Precautions

Do not work with power on during installation.
Do not install, use, or operate outdoor equipment and cables (including but not limited to moving equipment, operating equipment and cables, inserting connectors to or removing connectors from signal ports connected to outdoor facilities, working at heights, and performing outdoor installation) in harsh weather conditions such as lightning, rain, snow, and level 6 or stronger wind.
After installing the equipment, remove idle packing materials such as cartons, foam, plastics, and cable ties from the equipment area.
In the case of a fire, immediately leave the building or the equipment area, and turn on the fire alarm bell or make an emergency call. Do not enter the building on fire in any case.
Do not scrawl, damage, or block any warning label on the equipment.
Tighten the screws using tools when installing the equipment.
Understand the components and functioning of a grid-tied PV power system and relevant local standards.
Repaint any paint scratches caused during equipment transportation or installation in a timely manner. Equipment with scratches cannot be exposed to an outdoor environment for a long period of time.

Personal Safety

If there is a probability of personal injury or equipment damage during operations on the equipment, immediately stop the operations, report the case to the supervisor, and take feasible protective measures.
Use tools correctly to avoid hurting people or damaging the equipment.
Do not touch the energized equipment, as the enclosure is hot.

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

Professionals: personnel who are trained or experienced in equipment operations and are clear of the sources and degree of various potential hazards in equipment installation, operation, and maintenance

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Trained personnel: personnel who are technically trained, have required experience, are aware of possible hazards on themselves in certain operations, and are able to take protective measures to minimize the hazards on themselves and other people
Operators: operation personnel who may come in contact with the equipment, except trained personnel and professionals

1.3 Electrical Safety

Grounding

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

General Requirements

Before connecting cables, ensure that the equipment is intact. Otherwise, electric shocks or fire may occur.
Ensure that all electrical connections comply with local electrical standards. Ensure that the cables you prepared meet local regulations. Use dedicated insulated tools when performing high-voltage operations.
AC and DC Power

Do not connect or disconnect power cables with power on. Transient contact between the core of the power cable and the conductor will generate electric arcs or sparks, which may cause fire or personal injury.
Before making electrical connections, switch off the disconnector on the upstream device to cut off the power supply if people may contact energized components.
Before connecting a power cable, check that the label on the power cable is correct.
If the equipment has multiple inputs, disconnect all the inputs before operating the equipment.

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Cabling

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

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

1.5 Mechanical Safety

Using Ladders

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

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1 Safety Precautions

When climbing a ladder, take the following precautions to reduce risks and ensure safety:
- Keep your body steady.
- Do not climb higher than the fourth rung of the ladder from the top.
- Ensure that your body's center of gravity does not shift outside the legs of the ladder.

Drilling Holes
When drilling holes into a wall or floor, observe the following safety precautions:
Wear goggles and protective gloves when drilling holes. When drilling holes, protect the equipment from shavings. After drilling, clean up any
shavings that have accumulated inside or outside the equipment.

Moving Heavy Objects
Be cautious to avoid injury when moving heavy objects.

When moving the equipment by hand, wear protective gloves to prevent injuries.
1.6 Commissioning
When the equipment is powered on for the first time, ensure that professional personnel set parameters correctly. Incorrect settings may result in inconsistency with local certification and affect the normal operation of the equipment.
1.7 Maintenance and Replacement

High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage. Prior to maintenance, power off the equipment and strictly comply with the safety precautions in this document and relevant documents.
Maintain the equipment with sufficient knowledge of this document and using proper tools and testing equipment.
Prior to maintenance, power off the equipment.
Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.

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1 Safety Precautions

If the equipment is faulty, contact your dealer.
The equipment can be powered on only after all faults are rectified. Failing to do so may escalate faults or damage the equipment.

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2 Overview

2 Overview
2.1 Model
Model Description
This document covers the following product models: SmartACU2000D-D-01 SmartACU2000D-D-03
Figure 2-1 Model identifiers

Table 2-1 Model description

No.

Meaning

Series

Hardware

Voltage level

Configuration

Description SmartACU2000: smart array controller
D: version D
D: 800 V three-phase AC input 01: one MBUS route and one SmartPID2000 (referred to
as PID module hereinafter) 03: two MBUS routes and two PID modules

Model Identification
You can view the SACU model on its nameplate.

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SmartACU2000D Smart Array Controller User Manual (with PID Modules)
Figure 2-2 Nameplate (SmartACU2000D-D-03 as an example)

2 Overview

(1) Trademark and model (3) Compliance symbols

(2) Key technical specifications (4) Company name and country of origin

The nameplate figure is for reference only.

2.2 Product Introduction

Functions

The SACU is an outdoor cabinet that houses the SmartLogger3000 (SmartLogger for short), SmartModule1000 (SmartModule for short), PID module, SmartMBUS CCO module, Ethernet switch, access terminal box (ATB), and power over Ethernet (PoE) module.
The SmartLogger monitors and manages PV power systems. It converges ports, converts protocols, and centrally monitors and maintains the devices in PV power systems.
The SmartModule monitors and manages PV power systems. It converges ports, and converts protocols for devices in PV power systems. It extends ports for the SmartLogger.
The PID module effectively prevents the potential induced degradation (PID) effect of PV modules, thereby increasing the energy yield and revenue of the PV plant.

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2 Overview

The SmartMBUS CCO module connects to the SUN2000 solar inverters that support the monitoring bus (MBUS) function to transmit data over power cables, implementing MBUS networking.

Features

Intelligent and flexible: Connects to a maximum of 150 solar inverters and supports one-click commissioning.
Easy to use: Supports wizard-based settings, facilitating parameter settings and device connection.
Stable and reliable: Has a built-in surge protection module. The industrial application is secure and reliable.

Networking

Wired network: fiber ring network solution

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2 Overview

A maximum of 15 SmartLoggers can be connected to form an optical fiber ring network. Each SmartLogger can connect to devices such as solar inverters, environmental monitoring instruments (EMIs), and power meters.
Multiple optical fiber ring networks can be connected to the management system over an Ethernet switch.
Wireless network: 4G LTE solution
The IP address of the SmartLogger and that of the customer-premises equipment (CPE) must be on the same network segment.
2.3 Appearance
2.3.1 Product Appearance
Appearance
Figure 2-3 Appearance

No.

Component

PID cabinet door

Main cabinet door

Description
The PID cabinet is only for PID modules. Do not install third-party devices in the cabinet.
-

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No.

Component

Description

Mounting plate

Mounting bracket

Waterproof connectors for the Specifications: 3/4 in.

PID DO signal cable (PID01_DO, PID02_DO)

Inner diameter: 1318 mm (0.510.71 in.)

Waterproof connectors for the Specifications: 3/4 in.

RS485 communications cable or Inner diameter: 1318 mm

network cable (RS485/ETH)

(0.510.71 in.)

Waterproof connectors for the Specifications: 3/4 in.

RS485 communications cable, network cable, or DC input and output power cable

Inner diameter: 1318 mm (0.510.71 in.)

(RS485/ETH/DC)

Waterproof connector for the DO Specifications: 5/4 in.

signal cable (DO)

Inner diameter: 2032 mm

(0.791.26 in.)

Waterproof connector for the AI Specifications: 5/4 in.

signal cable (AI)

Inner diameter: 2032 mm

(0.791.26 in.)

Waterproof connector for the DI Specifications: 3/4 in.

signal cable (DI)

Inner diameter: 1318 mm

(0.510.71 in.)

Waterproof connector for the

Specifications: 3/4 in.

protective earthing cable (PE)

Inner diameter: 1318 mm

(0.510.71 in.)

Ventilation valve

USB port (USB)

The USB port is used only for maintenance (such as upgrade and data export). Ensure that the USB cover is tightened when the port is idle.

Waterproof connectors for the Specifications: 1 in.

three-phase AC power cable

Inner diameter: 1825 mm

(including the functional

(0.710.98 in.)

earthing wire) (MBUS01/PID01,

MBUS02/PID02)

Waterproof connector for the

Specifications: 3/4 in.

single-phase AC power cable (AC INPUT)

Inner diameter: 1318 mm (0.510.71 in.)

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No.

Component

Waterproof connector for the

optical cable (SFP1)

Waterproof connector for the

optical cable or network cable

(SFP2/LTE)

2 Overview
Description
Specifications: 3/4 in. Inner diameter: 1318 mm
(0.510.71 in.)
Specifications: 3/4 in. Inner diameter: 1318 mm
(0.510.71 in.)

Dimensions
Figure 2-4 Cabinet dimensions

2.3.2 Enclosure Signs

Symbol

Name Warning symbol for electric shocks
Warning label for multiple power inputs

Meaning
High voltage exists after the device is powered on. Only qualified and trained electrical technicians are allowed to install and operate the device.
This device has more than one power input. Before maintenance, ensure that the upstream switch is OFF.

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Symbol

Name

Meaning

Warning label for cable connection

Do not connect a three-phase input power cable to a single-phase input switch. Do not connect a single-phase input power cable to a three-phase input switch. Otherwise, the device will be damaged.

Warning label for PID functional Do not connect a PE cable to the

earthing (FE)

PID FE bar.

Warning label for surge protection Do not remove or install an

module operation

energized surge protection module.

Weight label

The SACU is heavy and needs to be moved with auxiliary tools or by more than one person.

2.4 Product Composition
For simplicity purposes, the following figure shows only the components that you need to operate and reserved installation positions.

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Figure 2-5 SmartACU2000D-D-03 Components

2 Overview

Table 2-2 Components and reserved installation positions

No.

Name

Specifications

PID FE bar (FE01, FE02)

SmartLogger power adapter AC input: 100240 V, 50 Hz/60 Hz

(U01)

DC output: 12 V/2 A

Position for the 24 V DC

AC input: 100240 V, 50 Hz/60 Hz

power module (U02)

DC output: 12 V DC, 60 W (maximum); 24 V

DC, 30 W (maximum)

NOTE If an external 2428 V DC input is used, the DC output voltage ranges from 21.5 V to 25.2 V.
The 24 V DC power module is optional. Its installation position is reserved in the cabinet.

PID01 input switch (QF01) AC: 1 A/3P

PID02 input switch (QF02) AC: 1 A/3P

Single-phase surge protective Uc = 385 V AC; 20 kA/40 kA; 8/20 s; 4P

device (SPD) (F03)

Three-phase SPD 1 (F01)

Uc = 680 V AC; 20 kA/40 kA; 8/20 s; 1P

Three-phase SPD 2 (F02)

Uc = 680 V AC; 20 kA/40 kA; 8/20 s; 1P

Quantity 1 1 1
1 1 1 4 4

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No.

Name

Specifications

Quantity

Position for the Ethernet

switch (SWITCH)

SmartMBUS CCO (MBUS SmartMBUS CCO01A

CCO)

Protective earthing (PE) bar -

SmartLogger3000

(SmartLogger)

SmartModule1000A01

(SmartModule)

Fiber adapter (OFA01: TX1 2LC/PC-2LC/PC-4

RX1; OFA02: TX2 RX2)

Position for the SPD of the -

power over Ethernet (PoE)

module

Position for the PoE module -

(POE)

ATB (Access Terminal Box) -

Single-phase input switch

32 A/2P

(QF03)

Three-phase input switch 2 25A/3P

(FU02)

Three-phase input switch 1 25A/3P

(FU01)

RS485 communications

12P; supports the wires with a cross-sectional area 1

terminal

ranging from 1 mm2 to 2.5 mm2 (or 1814 AWG)

SmartPID module (PID02) SmartPID2000

SmartPID module (PID01) SmartPID2000

AC input terminal of the 24 220 V/2P, supports the wires with a

V power module (JX02)

cross-sectional area ranging from 0.2 mm2 to 10

mm2 (or 248 AWG)

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Figure 2-6 SmartACU2000D-D-01 Components

2 Overview

Table 2-3 Components and reserved installation positions

No.

Name

Specifications

PID FE bar (FE01, FE02)

SmartLogger power adapter AC input: 100240 V, 50 Hz/60 Hz

(U01)

DC output: 12 V/2 A

Position for the 24 V DC

AC input: 100240 V, 50 Hz/60 Hz

power module (U02)

DC output: 12 V DC, 60 W (maximum); 24 V

DC, 30 W (maximum)

NOTE If an external 2428 V DC input is used, the DC output voltage ranges from 21.5 V to 25.2 V.
The 24 V DC power module is optional. Its installation position is reserved in the cabinet.

PID01 input switch (QF01) AC: 1 A/3P

Single-phase surge protective Uc = 385 V AC; 20 kA/40 kA; 8/20 s; 4P

device (SPD) (F03)

Three-phase SPD (F01)

Uc = 680 V AC; 20 kA/40 kA; 8/20 s; 1P

Position for the Ethernet

switch (SWITCH)

Quantity 1 1 1
1 1 4 1

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No.

Name

Specifications

Quantity

Position for the SmartMBUS -

CCO (MBUS CCO)

Protective earthing (PE) bar -

SmartLogger3000

(SmartLogger)

SmartModule1000A01

(SmartModule)

Fiber adapter (OFA01: TX1 2LC/PC-2LC/PC-4

RX1; OFA02: TX2 RX2)

Position for the SPD of the -

power over Ethernet (PoE)

module

Position for the PoE module -

(POE)

ATB (Access Terminal Box) -

Single-phase input switch

32 A/2P

(QF03)

Three-phase input switch

25 A/3P

(FU01)

RS485 communications

12P; supports the wires with a cross-sectional area 1

terminal (JX01)

ranging from 1 mm2 to 2.5 mm2 (or 1814 AWG)

SmartPID module (PID01) SmartPID2000

AC input terminal of the 24 220V/2P, supports the wires with a cross-sectional 1

V power module (JX02)

area ranging from 0.2 mm2 to 10 mm2 (or 248

AWG)

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2.5 Working Principles
Figure 2-7 Electrical conceptual diagram

2 Overview

The SACU communicates with devices in a PV array over RS485, MBUS, or Ethernet.
When the SACU communicates with solar inverters over MBUS, log in to the embedded WebUI of the SmartLogger3000, choose Monitoring > MBUS > Networking Settings, and set Networking to Enable (default value). When the SACU communicates with the solar inverters over RS485, set Networking to Disable. For details, see the SmartLogger3000 User Manual.
RS485 communication mode

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Figure 2-8 RS485 communication mode

2 Overview

- All SACU models support the RS485 communication mode. - The SmartLogger connects to the transformer station, power meter, solar inverter,
PID module, MBUS CCO module, and other devices that support RS485 communication over COM ports.
The SmartModule is installed before delivery only for the SmartACU2000D-D-03. The figure displays only major components and cables and is for reference only.
MBUS communication mode

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Figure 2-9 MBUS communication mode

2 Overview

- If a double-column transformer is used, use the SACU that supports the access of one MBUS route.
- If a dual-split transformer is used, use the SACU that supports the access of two MBUS routes.
- The SmartLogger has embedded MBUS. It connects to the solar inverters that support MBUS communication over the three-phase AC power cable.
- In the SACU that supports the access of two MBUS routes, the MBUS CCO module connects to the solar inverters that support MBUS communication over the three-phase AC power cable.
The MBUS CCO is installed before delivery only for the SmartACU2000D-D-03. The figure displays only major components and cables and is for reference only.
Ethernet communication mode - All SACU models support the Ethernet communication mode. The cabinet reserves a position for installing an Ethernet switch. - The SmartLogger has a 10M/100M/1000M Ethernet electrical port (WAN), and the SmartLogger connecting to an Ethernet switch has five 10M/100M/1000M Ethernet electrical ports.
The SACU communicates with the plant monitoring system over a fiber ring network or 4G LTE network.

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2 Overview

Over a fiber ring network - All SACU models support a fiber ring network. - The SmartLogger connects to the plant monitoring system by optical fibers through an ATB.
Over a 4G LTE network - All SACU models support the 4G LTE communication mode. The cabinet reserves positions for installing the PoE module and PoE SPD. - The SmartLogger connects to the plant monitoring system by 4G LTE through CPE.
The PID module factory-installed in the SACU can change the voltage between the neutral point on the AC side and the ground to change the voltage between the positive or negative electrode of PV modules and the ground, so as to prevent PID effect on PV modules.
If a double-column transformer is used, use the SACU with one PID module. If a dual-split transformer is used, use the SACU with two PID modules.

2.6 Configuration in Different Scenarios
2.6.1 Fiber Ring Network
Figure 2-10 Networking diagram

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2 Overview

Components in dashed-line boxes are optional. To highlight the involved area, the figure does not show all factory-installed components and cables.
The SmartModule is installed on the SmartACU2000D-D-03 before delivery, and you do not need to perform any operations on the SmartModule. If RS485 ports are required for the SmartACU2000D-D-01, the SmartModule can be optionally installed.

Table 2-4 Components required in the fiber ring network scenario

Position Component

Recommended Model or Specifications

Componen Quantity t Source

SACU

(Optional) SmartModule SmartModule1000A01

(Optional) Ethernet switch

UT-H605 or ES1000

Purchased 1 from Huawei
1

(Optional) 24 V power -

supply

Fitting bag Optical -

for optical module

ring

switchinga Optical -

jumper

Transformer Miniature circuit breaker Recommended rated current: 32 Prepared by 1

station

(MCB)

A; number of poles: 2

the customer

Three-phase Knife

power

fuse

switch

When the rated AC voltage on the LV side of the transformer station is less than or equal to 500 V, the rated voltage of the knife fuse switch should be greater than or equal to 600 V.
When the rated AC voltage on the LV side of the transformer station is greater than 500 V and less than or equal to 800 V, the rated voltage of the knife fuse switch should be greater than or equal to 800 V.
Recommended rated current of the fuse: 32 A; rated current of the knife fuse switch box: 32 A; number of poles: 3 (three fuses for each knife fuse switch box)

Scenario with a double-colu mn transformer: 1
Scenario with a dual-split transformer: 2

Note a: There are two types of fitting bags for fiber ring switching: with 100M optical modules or with 1000M optical modules. You can purchase a fitting bag based on the specifications of the optical modules used on the fiber channel (FC) switch.

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2 Overview

Components listed in the table need to be installed onsite.
Models of the components inside the transformer station are specified by the transformer station vendor.

Table 2-5 Cables to be prepared in the fiber ring network scenario

No.

Cable

Recommended Model or Specifications

Cross-sectional Area Range of the Cable (Recommended Value)

Three-phas Four-core (L1, L2, L3, and FE) outdoor armored 810 mm2 (10 mm2)

e AC power cable

copper cable and OT-M4 terminals (FE)
When the rated AC voltage on the LV side of the transformer station is less than or equal to 500 V,

8 AWG

the operating voltage between the three-phase AC

power cable and the ground should be greater

than or equal to 600 V.

When the rated AC voltage on the LV side of the transformer station is greater than 500 V and less than or equal to 800 V, the operating voltage between the three-phase AC power cable and the ground should be greater than or equal to 1000 V.

(Optional) Cat 5e outdoor shielded network cable with an

Peripheral outer diameter of less than 9 mm (0.35 in.) and

network internal resistance of less than or equal to 1.5

cable

ohms/10 m (1.5 ohms/32.81 ft), as well as shielded

RJ45 connectors

Peripheral Computer cable (DJYP2VP2-22 2x2x1) or armored 0.51 mm2 (1 mm2)

RS485

shielded twisted pair that can be used outdoors, as 2018 AWG (18 AWG)

communic well as OT-M4 terminals

ations

cable

Cabinet PE Outdoor copper cable and OT-M6 terminals

616 mm2 (16 mm2)

cable

106 AWG (6 AWG)

Optical

Four-core or eight-core single-mode armored

cable

optical cable with a transmission wavelength of

1310 nm and an outer diameter of less than or equal

to 18 mm (0.71 in.)

Single-pha Standard connection: two-core outdoor armored 46 mm2 (4 mm2)

se AC power cable

copper cable
Connection through a tube: single-core outdoor copper cable

1210 AWG (12 AWG)

Operating voltage to the ground 300 V

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No.

Cable

Recommended Model or Specifications

Cross-sectional Area Range of the Cable (Recommended Value)

(Optional) Standard connection: two-core outdoor armored 2.54 mm2 (2.5 mm2)

24 V DC output power cable

copper cable
Connection through a tube: single-core outdoor copper cable
Operating voltage to the ground 300 V

1412 AWG (14 AWG)

2.6.2 4G LTE
Figure 2-11 Networking diagram

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Table 2-6 Components required in the 4G LTE network scenario

Positio Component n

Recommended Model or Specifications

Compon ent Source

Quantity

SACU

(Optional) SmartModule

SmartModule1000A01

(Optional) 24 V power supply

Purchased 1 from Huawei
1

Fitting

PoE

bags for module

the PoE

module and PoE

CPE

SPDa

Outside

CPE

the

SACU

and

transfor

mer

station

Transfor mer station

MCB
Three-phas e power switch

Knife fuse switch

Recommended rated current: 32 A; number of poles: 2
When the rated AC voltage on the LV side of the transformer station is less than or equal to 500 V, the rated voltage of the knife fuse switch should be greater than or equal to 600 V.
When the rated AC voltage on the LV side of the transformer station is greater than 500 V and less than or equal to 800 V, the rated voltage of the knife fuse switch should be greater than or equal to 800 V.
Recommended rated current of the fuse: 32 A; rated current of the knife fuse switch box: 32 A; number of poles: 3 (three fuses for each knife fuse switch box)

Prepared by the customer

1
Scenario with a double-colu mn transformer: 1
Scenario with a dual-split transformer: 2

Note a: If the CPE model is EG860, a PoE SPD is required.

Components listed in the table need to be installed onsite.
Models of the components inside the transformer station are specified by the transformer station vendor.

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Table 2-7 Cables to be prepared in the 4G LTE network scenario

No. Cable

Recommended Model or Specifications

Cross-sectional Area Range of the Cable (Recommended Value)

Three-phase AC

Four-core (L1, L2, L3, and FE) outdoor

810 mm2 (10 mm2)

power cable

armored copper cable and OT-M4 terminals (FE)

8 AWG

When the rated AC voltage on the LV side of the transformer station is less than or equal to 500 V, the operating voltage between the three-phase AC power cable and the ground should be greater than or equal to 600 V.

Peripheral RS485 Computer cable (DJYP2VP2-22 2x2x1) or 0.51 mm2 (1 mm2)

communications cable

armored shielded twisted pair that can be used outdoors, as well as OT-M4 terminals

2018 AWG (18 AWG)

Cabinet PE cable

Outdoor copper cable and OT-M6 terminals 616 mm2 (16 mm2)

106 AWG (6 AWG)

Network cable from 20 m (65.62 ft) long network cable delivered -

the PoE module or with the Huawei CPE (If the cable is not long

PoE SPD to the CPE enough, prepare a Cat 5e outdoor shielded

network cable with an outer diameter of less

than 9 mm (0.35 in.) and internal resistance

of less than or equal to 1.5 ohms/10 m (1.5

ohms/32.81 ft), as well as shielded RJ45

connectors.)

Single-phase AC

Standard connection: two-core outdoor

46 mm2 (4 mm2)

power cable

armored copper cable

1210 AWG (12 AWG)

Connection through a tube: single-core

outdoor copper cable

Operating voltage to the ground 300 V

(Optional) 24 V DC Standard connection: two-core outdoor

2.54 mm2 (2.5 mm2)

output power cable

armored copper cable

1412 AWG (14 AWG)

Connection through a tube: single-core

outdoor copper cable

Operating voltage to the ground 300 V

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3 Storage Requirements

3 Storage Requirements
The following requirements should be met when the SACU needs to be stored prior to installation:
Do not unpack the SACU. Check the packing materials periodically. If any rodent bites are found, replace the packing materials immediately.
Store the SACU in a place with appropriate temperature and humidity to protect the SACU from dust and water vapor corrosion.
To avoid personal injury or device damage, stack SACUs neatly so that they will not fall over.
If the SACU has been stored for a long time, it needs to be inspected by professionals before it is put into use.
Huawei shall not be liable for any consequence caused by violation of the storage requirements specified in this document.

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4 System Installation

4.1 Checking Before Installation

Item Outer package Exterior Deliverables

Acceptance Criteria
The outer package is intact and tidy. If it is damaged or abnormal, do not unpack it, and contact your dealer.
The exterior is intact. If any damage is found, do not use the device, and contact your dealer as soon as possible.
Check the number of deliverables against the packing list in the packing case. If any deliverables are missing or damaged, contact your dealer.

4.2 Tools

Category Installation

Tool

Hammer drill. Drill bit: 14 mm (0.55 in.) and 16 mm (0.63 in.)

Adjustable wrench. Open end: 32 mm (12.59 in.)

Flat-head screwdriver. Head: 3 mm x 150 mm (0.12 in. x 5.91 in.)

Torque screwdriver. (Flat head: M3; cross-shaped head: M3, M4, and M6)

Socket wrench set Torque wrench

Wire strippers

Diagonal pliers

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Category

Tool

4 System Installation

Rubber mallet

Crimping tool

Cable cutter

Utility knife

RJ45 crimping tool Network cable tester

Multimeter

SPD extracting tool

Heat shrink tubing Heat gun

Vacuum cleaner

Marker -

Measuring tape
Personal protective equipment (PPE)

Level

Cable tie

Safety gloves

Safety goggles

Anti-dust respirator Safety boots

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4.3 Installation Requirements
Figure 4-1 Installation requirements

4 System Installation

4.4 Installing the Cabinet
4.4.1 Installing the Mounting Bracket
A mounting bracket has four groups of tapped holes, each group containing four tapped holes. Mark any hole in each group based on site requirements and mark four holes in total. Two round holes are preferred to secure the mounting bracket.

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Figure 4-2 Mounting bracket dimensions

4 System Installation

Wall-mounted Installation
Avoid drilling holes into the water pipes and power cables buried in the wall.
To prevent dust inhalation or contact with eyes, wear safety goggles and an anti-dust respirator when drilling holes.
Wipe away any dust in or around the holes and measure the hole distances. If the holes are inaccurately positioned, drill holes again.
Level the head of the expansion sleeve with the concrete wall after removing the bolt, spring washer, and flat washer. Otherwise, the mounting bracket will not be securely installed on the wall.
Step 1 Prepare expansion bolts (M12x60 stainless steel expansion bolts are recommended). Step 2 Install a mounting bracket.

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Figure 4-3 Installing a mounting bracket

4 System Installation

When determining the positions for drilling holes, level the hole positions using a level, and mark the positions using a marker.
----End
Support-mounted Installation
Step 1 Obtain the M12x40 bolt assemblies from the packing case. (If the length does not meet the installation requirements, prepare M12 bolt assemblies by yourself and use them together with the supplied M12 nuts.)
Step 2 Install a mounting bracket.
Figure 4-4 Installing a mounting bracket

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4 System Installation

When determining the positions for drilling holes, level the hole positions using a level, and mark the positions using a marker.
----End
Pole-mounted Installation
Step 1 Prepare pole-mounting brackets by yourself. You are advised to use M12 U-shaped bolts to secure the pole-mounting brackets.
Step 2 Install a mounting bracket.
Figure 4-5 Installing a mounting bracket

Figures provided in this section are for reference only. The actual poles and pole-mounting brackets prevail.
----End
4.4.2 Mounting the Cabinet
Step 1 Lift the cabinet, mount it onto the mounting bracket, and secure it using security Torx screws.
Figure 4-6 Mounting a cabinet

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----End

4 System Installation

4.5 Installing the Components
Install the components based on 2.6 Configuration in Different Scenarios.
4.5.1 Opening the Main Cabinet Door

Before opening the main cabinet door, turn off all upstream switches for the SACU to power off the SACU. After that, wait at least 3 minutes and operate the SACU. If you have to operate an energized SACU, wear insulation gloves and take preventive measures.
If you need to open the main cabinet door on rainy or snowy days, take protective measures to prevent rain or snow from entering the cabinet. If it is impossible to take protective measures, do not open the main cabinet door on rainy or snowy days.
Do not leave unused screws in the cabinet.
Loosen the screws on the main cabinet door, open the cabinet door, and adjust the support bar.
Figure 4-7 Opening a cabinet door

To highlight the involved area, the figure does not show certain components. This is applicable to all other similar figures.
4.5.2 (Optional) Installing the SmartModule
Step 1 Remove the mounting ears and guide railmounting kit from the SmartModule. Step 2 Remove the panel at the position where the SmartModule is to be installed from the cabinet
and take out the mounting kit. Step 3 Secure the mounting bracket to the SmartModule. Step 4 Install the SmartModule.

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Figure 4-8 Installing a SmartModule

4 System Installation

Step 5 Connect the GE4 port on the SmartModule to the LAN port on the SmartLogger using the network cable delivered with the SmartModule.
Step 6 Connect the preinstalled RS485 cable to the COM port on the SmartLogger based on the label.
Step 7 Connect the preinstalled power cable to the 12V 1A port on the SmartModule based on the cable label.
Figure 4-9 Connecting a cable

----End

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4.5.3 (Optional) Installing the Ethernet Switch
Step 1 Remove the panel behind which an Ethernet switch will be installed. Step 2 Secure the Ethernet switch. Step 3 Connect a PE cable to the Ethernet switch.

Figure 4-10 Installing an Ethernet switch

Step 4 Connect the FE1 port on the Ethernet switch to the WAN port on the SmartLogger using the network cable delivered with the Ethernet switch.
Step 5 Connect the preinstalled power cable to the power port on the Ethernet switch based on the label.

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Figure 4-11 Connecting an Ethernet switch cable

4 System Installation

----End
4.5.4 (Optional) Installing the 24 V Power Module
Step 1 Remove the mounting bracket of the 24 V power module from the cabinet. Step 2 Install the 24 V power module in the mounting bracket. Step 3 Secure the 24 V power module to the mounting bracket using the screws (delivered with the
24 V power module). Step 4 Install the 24 V power module in the cabinet. Step 5 Connect the AC input power cable (delivered with the SACU) to the 24 V power module
based on the cable label.

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Figure 4-12 Installing a 24 V power module

4 System Installation

----End
4.5.5 Installing the PoE Module
Step 1 Loosen screws (do not remove the screws) and remove the mounting board. Step 2 Remove screws from the PoE module installation position. Step 3 Place the PoE module at the installation position and align the mounting holes. Then secure
the PoE module.
Indicators should be in the lower left corner.
Step 4 Secure the mounting board.

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Figure 4-13 Installing a PoE module

4 System Installation

----End
4.5.6 (Optional) Installing the PoE SPD
Step 1 Loosen the nuts on the PoE SPD mounting board. (Do not remove the nuts.) Step 2 Replace and secure the PoE SPD mounting bracket. Step 3 Connect one end of the ground cable to the PE point on the PoE SPD, and secure the ground
nut. Step 4 Place the PoE SPD in the mounting bracket. Ensure that the PE point faces upwards and the
surface marked PE faces outwards. Step 5 Secure the PoE SPD fastener. Step 6 Connect the other end of the ground cable to the PE bar.

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Figure 4-14 Installing a PoE SPD

4 System Installation

----End

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5 Electrical Connections

5 Electrical Connections
Only certified electricians are allowed to connect cables. Wear proper PPE at all time when connecting cables. Before connecting cables to ports, leave enough slack to reduce the tension on the cables
and prevent poor cable connections. Connect cables in strict accordance with the operation description and precautions
provided in the document. Do not connect signal cables, single-phase AC power cables, and three-phase AC power cables reversely or mix them up. Otherwise, the caused equipment damage is not covered under any warranty or service agreement. For simplicity purposes, cables described in this chapter are those to be connected onsite, rather than factory-installed cables. The cabling routes are for reference only. 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 protective earthing).
5.1 Selecting a Connection Mode
You can connect a peripheral cable to the SACU in common mode or through a tube based on site requirements.

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5 Electrical Connections

To prevent poor cable connection due to overstress caused by ground subsidence, you are advised to bend the cable inside the cabinet for a slack of 2030 mm (0.791.18 in.) before connecting the cable to the appropriate port.
If a cable has a jacket, ensure that the jacket is in the cabinet. This section describes how to connect a peripheral cable to the RS485/ETH/DC
waterproof connector in common mode and through a tube, and provides a reference for connecting peripheral cables to other waterproof connectors.
5.1.1 Common Connection
If you choose common connection, ensure that an appropriate cable is available. Step 1 Remove the locking cap and plug from the waterproof connector. Step 2 Route the cable through the locking cap and then the waterproof connector.
Figure 5-1 Routing a cable

Step 3 Connect the cable and tighten the locking cap. Step 4 Check that the cable is connected correctly and securely. Seal the waterproof connector and
cable hole using the supplied firestop putty. Step 5 Clear foreign matter from the cabinet.
----End
5.1.2 Connection Through a Tube
If you choose connection through a tube, ensure that an appropriate cable and a tube are available.

Prepare an appropriate tube based on the diameter of the cable holes at the bottom. It is recommended that the tube specifications comply with the waterproof connector specifications. For example, for a 3/4 in. waterproof connector, a 3/4 in. tube is recommended.
The tube appearance is for reference only. The actual tube prevails. This is applicable to all other similar figures.

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Figure 5-2 Tube and the diameter of cable holes at the bottom

5 Electrical Connections

(1) Nut

(2) Fitting

(3) Conduit

Step 1 Remove the locking cap and plug from the waterproof connector, and remove the waterproof connector.
Step 2 Secure the tube fitting using the nut delivered with the tube.
Figure 5-3 Installing a tube fitting

Step 3 Route the cable through the tube conduit and then the fitting, and connect the cable.
Step 4 Secure the fitting to the conduit.
Step 5 Check that the cable is connected correctly and securely. Then take appropriate measures to ensure that the tube conduit and fitting are secured reliably, and seal the cable hole using supplied firestop putty.
Step 6 Clear foreign matter from the cabinet.
----End

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5.2 Crimping an OT Terminal

5 Electrical Connections

Avoid scratching the core wire when stripping a cable. The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap
the core wires completely. The core wires must contact the OT terminal closely. Wrap the wire crimping area with heat shrinkable tubing or PVC insulation tape. The heat
shrink tubing is used as an example. When using a heat gun, protect the devices from being scorched.
Figure 5-4 Crimping an OT terminal

5.3 Connecting the PE Cable

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5 Electrical Connections

Connect a PE cable to the nearest ground point or the ground bar in the transformer station.
To enhance the corrosion resistance of a ground terminal, you are advised to apply silica gel or paint on it after connecting the ground cable.
Figure 5-5 Connecting a PE cable

5.4 Connecting the Communications Cables for the Fiber Ring Network
Connecting the Optical Jumpers
Step 1 Obtain optical modules from the fitting bag for optical ring switching. Step 2 Insert an optical module into the SFP1 or SFP2 port. If there are two modules, insert one into
each port.
Pay attention to the directions of the optical modules. When inserting an optical module into the SFP1 port, ensure that the side with a label faces upward. When inserting an optical module into the SFP2 port, ensure that the side with a label faces downward.
Snap the optical module into place. Then pull it back to ensure that it is secure.
Step 3 Connect the optical jumpers delivered with the optical modules to the ports on the optical modules.

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Figure 5-6 Connecting optical jumpers

5 Electrical Connections

(1) Optical module ----End
Connecting the Cables to the ATB

(2) Optical jumper

As optical cables are hard, prepare optical cables before routing them into the SACU. Only professionals are allowed to connect optical cables.
Connect two optical cables in a ring optical network, and connect one optical cable in a star optical network.

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Figure 5-7 ATB interior

5 Electrical Connections

(1) Fiber spool (2) Fixing points for internal steel wires of optical cables (3) Cable clip Step 1 Remove the external mechanical parts from the ATB.

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Figure 5-8 Removing external mechanical parts

5 Electrical Connections

Step 2 Remove the optical cable fastener.

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Figure 5-9 Removing a fastener

5 Electrical Connections

Step 3 Connect one end of the optical jumper to the fiber adapter. Step 4 Route the other end of the optical jumper through the cable hole on the side of the ATB, and
connect the cable to the ATB. Step 5 Connect the peripheral optical cable to the ATB, splice the optical cable and the optical
jumper, and wind the spliced cable around the fiber spool on the ATB.
Only professionals are allowed to splice fibers.

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Figure 5-10 Connecting optical cables

5 Electrical Connections

Step 6 Check that the cables are connected correctly and securely. Then reinstall the optical cable fastener and external mechanical parts. ----End
5.5 Connecting the 4G LTE Cable (with a PoE SPD)
Step 1 Connect the POE port on the PoE module to the PROTECT port on the PoE SPD using the network cable delivered with the PoE SPD.

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Figure 5-11 Connecting a PoE module to a PoE SPD

5 Electrical Connections

Step 2 Connect the factory-installed network cable on the SmartLogger to the DATA port on the PoE module.
Step 3 Connect the factory-installed power cable on the SmartLogger to the PoE module.

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Figure 5-12 Connecting cables to the PoE module

5 Electrical Connections

Step 4 Connect the network cable delivered with the CPE to the Surge port on the PoE SPD.

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Figure 5-13 Connecting the CPE network cable

5 Electrical Connections

----End
5.6 Connecting the 4G LTE Cable (Without a PoE SPD)
Step 1 Connect the factory-installed network cable on the SmartLogger to the DATA port on the PoE module.
Step 2 Connect the factory-installed power cable on the SmartLogger to the PoE module.

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Figure 5-14 Connecting cables to the PoE module

5 Electrical Connections

Step 3 Connect the network cable delivered with the CPE to the PoE port on the PoE module. Figure 5-15 Connecting a CPE network cable

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----End

5 Electrical Connections

5.7 Connecting the Three-Phase AC Power Cable
For the SACU that houses one PID module, connect the three-phase AC power cable to the FU01 switch, and the FE wire to FE01 on the FE bar.
For the SACU that houses two PID modules, connect the three-phase AC power cable of the first route to the FU01 switch, and the corresponding FE wire to FE01 on the FE bar. Connect the three-phase AC power cable of the second route to the FU02 switch, and the corresponding FE wire to FE02 on the FE bar.
This section describes how to connect three-phase AC power cables for the SACU with two PID modules. For details about the single PID module situation, refer to the way of connecting the first route of three-phase AC power cable.
Step 1 Prepare a cable.
Figure 5-16 Length for cable stripping

Step 2 Crimp an OT terminal.
Step 3 Connect the L1, L2, and L3 wires to the three-phase input switch, and the FE wire to the FE bar.

Connect the L1-1, L2-1, and L3-1 wires from the FU01 switch respectively to ports A, B, and C on the transformer station busbar 1 over a three-phase power switch.
Connect the L1-2, L2-2, and L3-2 wires from the FU02 switch respectively to ports A, B, and C on the transformer station busbar 2 over a three-phase power switch.
Connect the FE wire for the PID module to the ground bar in the transformer station. Ensure that the L1, L2, and L3 wires are connected in correct phase sequence. Do not mix up the wire to the FE01 port with the wire to the FE02 port.
Step 4 Bind the cable.

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Figure 5-17 Connecting a cable

5 Electrical Connections

----End
5.8 Connecting the Peripheral RS485 Communications Cables
Connect peripheral RS485 communications cables to the JX01 terminal block. All RS485 communications cables are connected in the same way. This section describes how to connect two RS485 communications cables.

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5 Electrical Connections

Table 5-1 Definition of the JX01 terminal block

No.

Port on the JX01

Terminal Block

Definition

RS485-1 (+)

RS485A, RS485 differential signal+

RS485-1 ()

RS485B, RS485 differential signal

RS485-2 (+)

RS485A, RS485 differential signal+

RS485-2 ()

RS485B, RS485 differential signal

RS485-3 (+)

RS485A, RS485 differential signal+

RS485-3 ()

RS485B, RS485 differential signal

RS485-4 (+)

RS485A, RS485 differential signal+

RS485-4 ()

RS485B, RS485 differential signal

RS485-5 (+)

RS485A, RS485 differential signal+

RS485-5 ()

RS485B, RS485 differential signal

RS485-6 (+)

RS485A, RS485 differential signal+

RS485-6 ()

RS485B, RS485 differential signal

For the SmartACU2000D-D-01, do not connect a peripheral RS485 communications cable to the RS485-1 port (ports 1 and 2 on the JX01 terminal block), because the PID01 communications cable has been connected to this port.
For the SmartACU2000D-D-03, do not connect a peripheral RS485 communications cable to the RS485-1 and RS485-2 ports, because the PID01 communications cable has been connected to the RS485-1 port (ports 1 and 2 on the JX01 terminal block) and the PID02 communications cable has been connected to the RS485-2 port (ports 3 and 4 on the JX01 terminal block).
For the SmartACU2000D-D-03, do not connect a peripheral RS485 communications cable to the RS485-3 port (ports 5 and 6 on the JX01 terminal block) because the communications cable of the MBUS CCO module has been connected to this port.
JX01 ports 7, 8, 9, 10, 11, and 12 on the SmartACU2000D-D-03 can be connected to the RS485 cable.
JX01 ports 7, 8, 9, 10, 11, and 12 on the SmartACU2000D-D-01 can be connected to the RS485 cable only after the SmartModule is installed.
Step 1 Prepare the communications cable.

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Figure 5-18 Length for cable stripping

5 Electrical Connections

Step 2 Connect the communications cable to the JX01 terminal block. Step 3 Crimp an OT terminal on the shield layer, and connect the shield layer to the cabinet ground
point. Step 4 Bind the communications cable.
Figure 5-19 Connecting RS485 communications cables

----End
5.9 (Optional) Connecting the Peripheral Network Cable
Connect peripheral network cables to ports FE2 to FE5 on the Ethernet switch. All network cables can be connected in the same way. Step 1 Prepare a network cable.

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Figure 5-20 Wiring sequence of an RJ45 connector

5 Electrical Connections

(1) White-and-orange (5) White-and-blue

(2) Orange (6) Green

(3) White-and-green (7) White-and-brown

(4) Blue (8) Brown

Verify that the network cable functions properly using a network cable tester.
Step 2 Connect the peripheral network cable to the FE2 port on the Ethernet switch. Step 3 Bind the network cable.
Figure 5-21 Connecting a network cable

----End
5.10 (Optional) Connecting the DC Output Power Cable to the 24 V Power Module
Step 1 Prepare a cable.

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Figure 5-22 Length for cable stripping

5 Electrical Connections

Step 2 Connect the cable to the 24V OUT+ and 24V OUT- ports on the power module. Step 3 Bind the cable.
Figure 5-23 Connecting a DC output power cable to the 24 V power module

----End
5.11 Connecting the Single-Phase Power Cable
Step 1 Prepare a cable. Figure 5-24 Length for cable stripping

Step 2 Connect the cable to the single-phase input switch.

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5 Electrical Connections

Connect the L and N (L) wires to the L and N (L) terminals of the station-service power source for the transformer station through an MCB.
Step 3 Bind the cable.
Figure 5-25 Connecting a cable

----End
5.12 Connecting DO/DI/AI Cables
The SACU reserves the waterproof connectors for the PID01_DO, PID02_DO, DO, DI, and AI cables. Cabling routes are provided for the signal cables. For details about how to prepare and connect the cables, see the SmartPID2000 User Manual and SmartLogger3000 User Manual.

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Figure 5-26 Cabling routes

5 Electrical Connections

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6 System Commissioning

6.1 Checking Before Power-On

No.

Acceptance Criteria

The cabinet and all components are installed properly.

All upstream switches for the cabinet and all switches inside the cabinet are

OFF.

All cables are connected correctly and securely, without exposed metal.

Cables are bound neatly, and cable ties are secured evenly and properly in the

same direction.

Routing for the power cables and signal cables meets the requirements for

routing strong-current and weak-current cables and complies with the cable

routing plan.

The locking caps of the used waterproof connectors are tightened and sealed.

Idle waterproof connectors are plugged and the locking caps are tightened.

The cabinet interior is clean, without dust, dirt, or foreign matter.

The paint on the cabinet exterior is intact. If paint flakes off, repaint that area to

prevent corrosion.

6.2 Powering On the System
You have completed the power-on check. You have put on proper PPE. Ensure that the power voltage of the SACU is within the operating voltage range, and the
three-phase input voltage is within the operating voltage range of the SmartMBUS and PID module.

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6 System Commissioning

Procedure
Step 1 Turn on the single-phase power switch that controls the power supply from the remote transformer station to the SACU.
Step 2 Turn on the three-phase power switch that controls the power supply from the remote transformer station to the SACU.
Step 3 Check that the input voltages of all switches of the SACU are within appropriate operating voltage ranges using a multimeter.
Step 4 Turn on the QF03 single-phase input switch in the SACU. Step 5 Turn on the PID switch in the SACU.
Turn on QF01 for the SmartACU2000D-D-01. Turn on QF01 and QF02 for the SmartACU2000D-D-03.
Step 6 Turn on the three-phase input switch in the SACU.
Turn on FU01 for the SmartACU2000D-D-01. Turn on FU01 and FU02 for the SmartACU2000D-D-03.
----End

6.3 Closing the Cabinet Door
Retract the support bar, close the cabinet door, and tighten the screws.
Figure 6-1 Closing the main cabinet door

6.4 Powering Off the System
Step 1 Turn off the single-phase power switch that controls the power supply from the remote transformer station to the SACU.
Step 2 Turn off the three-phase power switch that controls the power supply from the remote transformer station to the SACU.
Step 3 Turn off the QF03 single-phase input switch in the SACU.
Step 4 Turn off the three-phase input switch in the SACU.

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Turn off FU01 for the SmartACU2000D-D-01. Turn off FU01 and FU02 for the SmartACU2000D-D-03. Step 5 Turn off the PID switch in the SACU. Turn off QF01 for the SmartACU2000D-D-01. Turn off QF01 and QF02 for the SmartACU2000D-D-03. ----End

6 System Commissioning

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7 System Maintenance

7 System Maintenance
7.1 Routine Maintenance

Before cleaning the system, connecting cables, and maintaining the grounding reliability, power off the system to ensure that the SACU is de-energized and will not cause personal injury.
If you need to open the cabinet door on rainy or snowy days, take protective measures to prevent rain or snow from entering the cabinet. If it is impossible to take protective measures, do not open the cabinet door on rainy or snowy days.

Table 7-1 Maintenance checklist

Check Item

Check That

Cabinet

The SACU exterior is not damaged or deformed. There is no dust or dirt in the SACU.

System running status

All devices in the SACU operate properly. The SPD works properly.

Electrical connections

Cables are secured.
Cables are intact and especially the parts touching the metallic surface are not scratched.
Idle waterproof connectors are plugged and the locking caps are tightened.
The cover on the USB port is tightened.

Grounding reliability

All ground cables are reliably connected.

Maintenance Interval Once every twelve months Once every six months
Once every twelve months
Once every twelve months

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7 System Maintenance

7.2 Troubleshooting

Symptom

Cause

Troubleshooting

The three-phase input switch of the SACU is not powered on.
The input switch (QF01 or QF02) of the PID module is not powered on.
The PID module of the SACU is not powered on.
The single-phase input switch of the SACU is not powered on.

1. The power supply to the upstream transformer station of the three-phase input switch is abnormal.
2. The three-phase input switch is faulty.
1. The input switch of the PID module is faulty.
2. The cable between the three-phase input switch and the input switch of the PID module is loose or disconnected.
1. The grid three-phase input ports for the PID module are disconnected from cables or loosely connected to cables.
2. The power grid is disconnected from power.
3. The PID module is faulty.
1. The power supply to the upstream transformer station of the single-phase input switch is abnormal.
2. The single-phase input switch is faulty.

1. Use a multimeter to check whether the power supply to the upstream transformer station of the three-phase input switch is normal.
2. Replace the three-phase input switch.
1. Replace the input switch of the PID module.
2. Check the cable between the three-phase input switch and the input switch of the PID module. If the cable is loose or disconnected, secure it.
1. If the cable is loose or disconnected, secure it.
2. Check whether power is available to the power grid.
3. Contact the dealer or Huawei technical support.
1. Use a multimeter to check whether the power supply to the upstream transformer station of the single-phase input switch is normal.
2. Replace the single-phase input switch.

The PoE module is not powered on.

The power cable of the PoE module is loose or disconnected.

If the cable is loose or disconnected, secure it.

The power adapter or 24 V DC power module fails to supply power.

1. The input and output power cables of the 24 V DC power module are loose or disconnected.
2. The power adapter or 24 V DC power module is faulty.

1. If the cable is loose or disconnected, secure it.
2. Replace the power adapter or 24 V DC power module.

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7 System Maintenance

Symptom The SmartLogger in the SACU is not powered on.
No communication between the SmartLogger and the Ethernet switch

Cause

Troubleshooting

1. The DC output power cable for the power adapter does not connect to the 12V IN port on the SmartLogger.
2. The power cable is not connected to the AC power receiving port on the power adapter.
3. The AC input power cable is not connected to the AC socket.
4. The power adapter is faulty. 5. The SmartLogger is faulty.
1. The network cable between the SmartLogger and the Ethernet switch is not properly connected.
2. The IP address of the SmartLogger is not configured or is not in the LAN.

1. Check the power adapter and connect the DC output power cable for the power adapter to the 12V IN port on the SmartLogger.
2. Check whether the power cable is connected to the AC power receiving port on the power adapter.
3. Check whether the power cable is connected to the AC socket.
4. Replace the power adapter.
5. Contact the dealer or Huawei technical support.
1. Check whether the network port indicators on the SmartLogger and Ethernet switch blink properly. If not, connect the network cable to another FE port on the Ethernet switch or replace the network cable and try again.
2. On the SUN2000 app, check whether the IP address of the SmartLogger is correctly set. If not, set the IP address again.
3. Log in to the SmartLogger WebUI over the LAN port (default IP address of the LAN port: 192.168.8.10) and check whether the IP address of the SmartLogger is correct. If not, set the IP address again.
4. Connect the PC to the Ethernet switch and ping the IP address of the SmartLogger. If the communication is abnormal, replace the network cable and try again.

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7 System Maintenance

Symptom

Cause

No communication between the SmartLogger and the SmartModule

1. The network cable between the SmartLogger and the SmartModule is not properly connected.
2. The communication certificate has expired.

Troubleshooting
1. Check whether the network port indicators on the SmartLogger and SmartModule blink properly. If not, connect the network cable to another GE port on the SmartModule or replace the network cable and try again.
2. Log in to the SmartLogger WebUI or SUN2000 app and check whether a communication certificate expiration alarm is generated. If yes, reload the certificate.
3. Contact the dealer or Huawei technical support.

7.3 Component Replacement

Do not perform operations with power on because high voltage exists during the running of the device.
Before replacing a component, ensure that a spare component of the same model is available and functional.
Before replacing a component, power off the SACU. Wait at least 3 minutes after the power-off to ensure that the SACU is de-energized.
After replacing a component, check the SACU before powering it on to ensure that the new component works properly.
Dispose of faulty components in accordance with the local disposal act for waste electrical equipment.
7.3.1 Replacing the Single/Three-Phase SPD
An SPD consists of a surge protection module and a base. If an SPD is damaged or its indication window is displayed in red, the SPD is deemed unavailable
and needs to be replaced. A single-phase SPD is replaced in the same way as a three-phase SPD. This section describes how to
replace a single-phase SPD.
Step 1 Remove the faulty surge protection module from the SPD.

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Figure 7-1 Removing a faulty surge protection module

7 System Maintenance

Step 2 Install a new surge protection module. Figure 7-2 Installing a new surge protection module

----End
7.3.2 Replacing the Knife Fuse Switch
Step 1 Disconnect the cables from the knife fuse switch and label the cables. Step 2 Remove the faulty knife fuse switch.

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Figure 7-3 Removing a faulty knife fuse switch

7 System Maintenance

Step 3 Install a new knife fuse switch. Step 4 Connect the cables based on their labels.
----End
7.3.3 Replacing the Fuse of a Knife Fuse Switch
Step 1 Open the knife fuse switch box and remove the faulty fuse.
Figure 7-4 Removing a faulty fuse

Step 2 Install a new fuse and close the knife fuse switch box. ----End
7.3.4 Replacing the Single-Phase Input Switch
Step 1 Disconnect the cables from the single-phase input switch and label the cables.

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Step 2 Remove the faulty single-phase input switch.
Figure 7-5 Removing a faulty single-phase input switch

7 System Maintenance

Step 3 Install a new single-phase input switch. Step 4 Connect the cables based on their labels.
----End
7.3.5 Replacing the SmartMBUS CCO Module
Step 1 Disconnect the cables from the SmartMBUS CCO module and label the cables. Step 2 Remove the faulty SmartMBUS CCO module and its mounting ears.
Figure 7-6 Replacing a faulty SmartMBUS CCO module

Step 3 Install the mounting ears on a new SmartMBUS CCO module. Step 4 Installing a new SmartMBUS CCO module Step 5 Connect the cables based on their labels.
----End

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7.3.6 Replacing the SmartLogger
Step 1 Disconnect the cables from the SmartLogger and label the cables. Step 2 Remove the faulty SmartLogger and its cabinet-mounting kit.
Figure 7-7 Removing a faulty SmartLogger

7 System Maintenance

Step 3 Remove the mounting ears and guide railmounting kit from a new SmartLogger, and install the cabinet-mounting kit.

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Figure 7-8 Replacing a SmartLogger

7 System Maintenance

Step 4 Install the new SmartLogger in the cabinet. Step 5 Connect the cables based on their labels.
----End
7.3.7 Replacing the SmartModule
Step 1 Disconnect the cables from the SmartModule and label the cables. Step 2 Remove the faulty SmartModule and its cabinet-mounting kit.

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Figure 7-9 Removing a faulty SmartModule

7 System Maintenance

Step 3 Remove the mounting ears and guide railmounting kit from a new SmartModule, and install the cabinet-mounting kit.
Figure 7-10 Replacing a SmartModule

Step 4 Install the new SmartModule in the cabinet. Step 5 Connect the cables based on their labels.

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----End

7 System Maintenance

7.3.8 Replacing the Power Adapter
Step 1 Disconnect the cables from the power adapter and label the cables. Step 2 Remove the faulty power adapter.
Figure 7-11 Removing a faulty power adapter

Step 3 Install a new power adapter. Step 4 Connect the cables based on their labels.
----End
7.3.9 Replacing the PID Module
Step 1 Open the PID cabinet door and adjust the support bar.

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Figure 7-12 Adjusting a support bar

7 System Maintenance

Step 2 Open the maintenance compartment door of the PID module, and remove the cover from the connection box.
Figure 7-13 Removing the cover from a connection box

Step 3 Disconnect cables from the faulty PID module, and label the cables. Step 4 Remove the pipe connector from the faulty PID module. Step 5 Remove the faulty PID module.

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Figure 7-14 Removing a faulty PID module

7 System Maintenance

Step 6 Install a new PID module. Step 7 Open the maintenance compartment door of the PID module, and remove the cover from the
connection box. Step 8 Connect the removed cables to the new PID module based on the cable labels. Step 9 Secure the pipe connector to the PID module. Step 10 Reinstall the connection box cover and close the maintenance compartment door of the PID
module. Step 11 Retract the support bar and close the PID module cabinet door.
After ensuring that the PID module is powered on, set parameters by referring to the SmartLogger3000 User Manual.
----End
7.3.10 Replacing the PID Module Switch
Step 1 Remove the switch of the faulty PID module.

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Figure 7-15 Removing the switch of the faulty PID module

7 System Maintenance

Step 2 Disconnect cables from the switch of the faulty PID module, and label the cables. Step 3 Connect the cables to a new PID module based on the cable labels. Step 4 Installing a new PID module switch
----End
7.3.11 Replacing the Fiber Adapter
Step 1 Disconnect the cables from the fiber adapter and label the cables. Step 2 Remove the faulty fiber adapter.
Figure 7-16 Removing a fiber adapter

Step 3 Install a new fiber adapter. Step 4 Connect the cables based on their labels.

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----End
7.3.12 Replacing the USB Port
Step 1 Disconnect the cable from the USB port, and label the cable. Step 2 Remove the faulty USB port.
Figure 7-17 Removing a USB port

7 System Maintenance

Step 3 Ensure that the rubber ring is on the inner side of the cabinet when installing a new USB port. Step 4 Connect the cables based on their labels.
----End

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8 Technical Specifications

Item

SmartACU2000D-D-01

SmartACU2000D-D-03

Communications mode

SFP/ETH/RS485/MBUS

Number of MBUS 1

routes

MBUS input (AC) 380800 V; three-phase

Number of PID

routes

PID input (AC)

380800 V; three-phase+FE

Three-phase input 480 W (maximum) power

2 x 330 W (maximum)

Single-phase operating voltagea

AC input: 100240 V

Single-phase input 110 W (maximum) power

Frequency

50 Hz/60 Hz

Cable routing mode Routed in and out from the bottom

Operation and

Operated and maintained from the front

maintenance mode

Operating environment

Indoor and outdoor

Maximum operating 4000 m (13123.36 ft) altitude

Installation mode Installed on a support, pole, or wall

Dimensions (H x W 770 mm x 880 mm x 369 mm (30.31 in. x 34.65 in. x 14.53 in.) x D, including the mounting plate)

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8 Technical Specifications

Item

SmartACU2000D-D-01

SmartACU2000D-D-03

Net weight (including firestop putty, screws, and the mounting plate)

About 49 kg (108.03 lb)

About 61 kg (134.48 lb)

Enclosure ingress protection (IP) rating

IP65/Type 3R

Operating humidity 4%100% RH

Operating temperature

40°C to +60°C (40°F to +140°F)

Storage temperature 40°C to +70°C (40°F to +158°F)

Note a: Supports a 24 V power system. DC input and output: 2428 V DC; 70 W (maximum)

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A Acronyms and Abbreviations

A AC AI APP ATB

alternating current analog input application access terminal box

C CAT 5E CCO CPE

Category 5 enhanced central controller customer-premises equipment

direct current

digital input

digital output

E EMI ETH

environmental monitoring instrument Ethernet

L LTE

Long Term Evolution

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MBUS
P PE PID PoE
R RH
S SFP SPD
W WEEE

A Acronyms and Abbreviations monitoring bus
protective earthing potential induced degradation power over Ethernet
relative humidity
small form-factor pluggable surge protective device
waste electrical and electronic equipment

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Microsoft Word 2013 Microsoft Word 2013