Huawei UPS5000-A-30 kVA, UPS5000-A-40 kVA, UPS5000-A-80 kVA User Manual

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UPS5000-A-30 kVA & 40 kVA & 80 kVA

User Manual

Issue

Date

2018-12-10

HUAWEI TECHNOLOGIES CO., LTD.

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Issue 11 (2018-12-10)

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address:

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

Website:

http://e.huawei.com

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About This Document

Issue 11 (2018-12-10)

Purpose

Symbol

Description

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

This document describes the high-frequency tower-mounted UPS5000-A-30 kVA & 40 kVA & 80 kVA in terms of features, appearance, structure, working principle, technical specifications, installation, operation, and maintenance. UPS is short for uninterruptible power system. Unless otherwise specified, UPS refers to all the models described in this document.

Intended Audience

About This Document

This document is intended for:



Sales engineers



Technical support engineers



System engineers



Hardware installation engineers



Commissioning engineers



Data configuration engineers



Maintenance engineers

Symbol Conventions

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

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About This Document

Issue 11 (2018-12-10)

iii

Symbol

Description

Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.

NOTICE is used to address practices not related to personal injury.

Calls attention to important information, best practices and tips.

NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History

Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.

Issue 11(2018-12-10)

Update some MDU screenshots.

Issue 10 (2018-04-18)

This issue is the tenth official release, which incorporates the following change: Updated the model specifications.

Issue 09 (2018-01-03)

This issue is the ninth official release, which incorporates the following changes: Updated the output electrical specifications and typical configuration. Updated the Monitoring screen image.

Issue 08 (2017-06-09)

This issue is the eighth official release, which incorporates the following changes: Updated the Monitoring screen image.

Issue 07 (2016-12-03)

This issue is the seventh official release, which incorporates the following changes: Updated the UPS front space reservation in section 3.1.1 "Site". Added the section 3.2.7.1 "UPS Cable Connection Reference". Added checking for foreign matters in section 3.4 "Installation Verification". Added the section 5.1.5 "Setting ECO Mode" and the section 5.1.6 "Testing Batteries".

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About This Document

Issue 11 (2018-12-10)

Updated the section 6 "Routine Maintenance". Added the specifications of the internal circuit breaker in the section 8 "Technical

Specifications".

Issue 06 (2015-06-26)

This issue is the sixth official release, which incorporates the following changes: Updated the Monitoring screen image.

Issue 05 (2014-09-26)

This issue is the fifth official release, which incorporates the following changes: Added the features of four parallel systems and the battery monitoring unit (BMU).

Issue 04 (2014-07-16)

This issue is the fourth official release, which incorporates the following changes: Updated section 1 Precautions.

Issue 03 (2014-01-20)

This issue is the third official release, which incorporates the following changes: Updated section 1 Precautions. Updated the secured installation for the UPS5000-A-60 kVA/80 kVA/120 kVA in section

3.2.2. Updated section 7 Troubleshooting Alarm List.

Issue 02 (2013-11-18)

This is the second official release, which incorporates the following changes: Added figures of OT and DT terminals for the UPS5000-A and tables that list their

specifications in section 3.1.3.

Issue 01(2013-11-05)

This is the first release.

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Contents

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

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

1.1 General Safety .............................................................................................................................................................. 1

1.2 Electrical Safety ............................................................................................................................................................ 3

1.3 Operating Environment................................................................................................................................................. 6

1.4 Battery Safety ............................................................................................................................................................... 6

1.5 Mechanical Safety ........................................................................................................................................................ 8

1.6 Laying Out Cables ........................................................................................................................................................ 9

1.7 Information About Foreign Objects near UPS Equipment Installation ....................................................................... 10

2 Overview ....................................................................................................................................... 12

2.1 Model Description ...................................................................................................................................................... 12

2.2 Working Principles...................................................................................................................................................... 12

2.2.1 Conceptual Diagram ................................................................................................................................................ 12

2.2.2 Working Modes ........................................................................................................................................................ 13

2.2.2.1 Normal Mode ........................................................................................................................................................ 13

2.2.2.2 Bypass Mode ........................................................................................................................................................ 14

2.2.2.3 Battery Mode ........................................................................................................................................................ 14

2.2.2.4 Maintenance Bypass Mode ................................................................................................................................... 15

2.2.2.5 ECO Mode ............................................................................................................................................................ 15

2.3 Product Description .................................................................................................................................................... 17

2.3.1 Appearance .............................................................................................................................................................. 17

2.3.2 Product Structure ..................................................................................................................................................... 18

2.3.2.1 30 kVA/40 kVA UPS ............................................................................................................................................. 18

2.3.2.2 80kVA UPS ................................ ................................................................ ........................................................... 22

2.3.3 Control Port ............................................................................................................................................................. 23

2.4 Typical configurations ................................................................................................................................................ 27

2.4.1 Single UPS ............................................................................................................................................................... 28

2.4.2 Parallel System ........................................................................................................................................................ 28

2.4.3 Dual-Bus System ..................................................................................................................................................... 29

2.5 Optional Components ................................................................................................................................................. 30

3 Installation.................................................................................................................................... 32

3.1 Installation Preparations ............................................................................................................................................. 32

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3.1.1 Site ........................................................................................................................................................................... 32

3.1.2 Tools and Instruments .............................................................................................................................................. 35

3.1.3 Power Cables ........................................................................................................................................................... 37

3.1.4 Unpacking and Checking ......................................................................................................................................... 42

3.1.4.1 30 kVA/40 kVA UPS ............................................................................................................................................. 43

3.1.4.2 80 kVA UPS .......................................................................................................................................................... 44

3.2 Installing a Single UPS ............................................................................................................................................... 48

3.2.1 Installing the UPS5000-A-30 kVA/40 kVA ............................................................................................................. 48

3.2.2 Installing the UPS5000-A-80 kVA .......................................................................................................................... 59

3.2.3 (Optional) Installing Antiseismic Kits ..................................................................................................................... 71

3.2.4 (Optional) Installing a Battery Monitoring Unit ...................................................................................................... 72

3.2.5 Installing Batteries ................................................................................................................................................... 74

3.2.6 UPS Cable Connection Reference ........................................................................................................................... 75

3.2.7 Routing Cables......................................................................................................................................................... 76

3.2.7.1 Cable Routes ......................................................................................................................................................... 76

3.2.7.2 Connecting Ground Cables ................................................................................................................................... 78

3.2.7.3 Connecting AC Input Power Cables ..................................................................................................................... 80

3.2.7.4 Connecting AC Output Power Cables ................................................................................................................... 84

3.2.7.5 Connecting Battery Cables ................................................................................................................................... 85

3.2.8 Remote EPO ............................................................................................................................................................ 87

3.2.9 Connecting Communications Cables ....................................................................................................................... 88

3.3 Installing a Parallel System ......................................................................................................................................... 88

3.3.1 Connecting Power Cables ........................................................................................................................................ 88

3.3.2 Connecting Signal Cables ........................................................................................................................................ 92

3.4 Installation Verification ............................................................................................................................................... 94

4 LCD and WebUI .......................................................................................................................... 99

4.1 MDU ........................................................................................................................................................................... 99

4.2 LCD ................................................................ ................................ ................................................................ .......... 101

4.2.1 Overview ............................................................................................................................................................... 101

4.2.2 Status Screen .......................................................................................................................................................... 102

4.2.3 Alarms .................................................................................................................................................................... 105

4.2.4 Settings Screen....................................................................................................................................................... 106

4.2.5 Control ................................................................................................................................................................... 120

4.2.6 About Screen .......................................................................................................................................................... 122

4.3 WebUI ....................................................................................................................................................................... 122

4.3.1 Login ...................................................................................................................................................................... 122

4.3.2 Monitoring Page .................................................................................................................................................... 124

4.3.2.1 Parameter Settings .............................................................................................................................................. 125

4.3.2.2 Communications Settings ................................................................................................................................... 132

4.3.2.3 Control ................................................................................................................................................................ 132

4.3.3 Query Page ............................................................................................................................................................ 133

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4.3.3.1 Historical Alarms Page ....................................................................................................................................... 133

4.3.3.2 Logs Page ........................................................................................................................................................... 133

4.3.4 Config. Page .......................................................................................................................................................... 134

4.3.4.1 User Management ............................................................................................................................................... 134

4.3.4.2 Site Config. ......................................................................................................................................................... 134

4.3.4.3 RCCMD .............................................................................................................................................................. 136

4.3.4.4 Managing the UPS by Using the NMS Complying with RFC1628 Standard ..................................................... 145

4.3.5 Protecting the Server by Using the RCCMD Software .......................................................................................... 146

4.3.5.1 Introduction to the Software ............................................................................................................................... 146

4.3.5.2 RCCMD Event Shutdown and Message Sending ............................................................................................... 147

4.3.5.3 UPS Alive Check Function ................................................................................................................................. 148

5 Operations .................................................................................................................................. 151

5.1 Powering On and Starting the UPS ........................................................................................................................... 151

5.2 Shutting Down and Powering Off the UPS .............................................................................................................. 155

5.3 Starting the UPS in Battery Mode ............................................................................................................................ 156

5.4 Transferring to Bypass Mode .................................................................................................................................... 157

5.5 Setting ECO Mode .................................................................................................................................................... 157

5.6 Testing Batteries ....................................................................................................................................................... 158

5.6.1 Forced Equalized Charging Test ............................................................................................................................ 158

5.6.2 Shallow Discharge Test .......................................................................................................................................... 159

5.6.3 Capacity Test.......................................................................................................................................................... 161

5.6.4 Test Data Download ............................................................................................................................................... 162

5.7 Transferring to Maintenance Bypass Mode .............................................................................................................. 162

5.8 Transferring from Maintenance Bypass Mode to Normal Mode .............................................................................. 165

5.9 Performing EPO........................................................................................................................................................ 166

5.10 Clearing the EPO State ........................................................................................................................................... 167

6 Routine Maintenance ............................................................................................................... 169

6.1 UPS Maintenance ..................................................................................................................................................... 169

6.1.1 Monthly Maintenance ............................................................................................................................................ 169

6.1.2 Quarterly Maintenance .......................................................................................................................................... 170

6.1.3 Annual Maintenance .............................................................................................................................................. 170

6.2 Battery Maintenance ................................................................................................................................................. 171

6.2.1 Precautions for Battery Maintenance ..................................................................................................................... 172

6.2.2 Monthly Maintenance ............................................................................................................................................ 172

6.2.3 Quarterly Maintenance .......................................................................................................................................... 173

6.2.4 Annual Maintenance .............................................................................................................................................. 174

7 Troubleshooting ........................................................................................................................ 175

8 Technical Specifications .......................................................................................................... 178

8.1 Physical Specifications ............................................................................................................................................. 178

8.2 Internal Switch Parameters ....................................................................................................................................... 178

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8.3 Environmental Specifications ................................................................................................................................... 178

8.4 Safety Regulations and EMC .................................................................................................................................... 179

8.5 Mains Input Electrical Specifications ....................................................................................................................... 179

8.6 Bypass Input Electrical Specifications ................................................................ ................................ ...................... 180

8.7 Battery Specifications ............................................................................................................................................... 180

8.8 Output Electrical Specifications ............................................................................................................................... 181

8.9 System Electrical Specifications ............................................................................................................................... 181

A Menu Hierarchy ....................................................................................................................... 182

A.1 LCD Menus ............................................................................................................................................................. 182

A.2 Menus on the WebUI ............................................................................................................................................... 183

B Alarm List................................................................................................................................... 186

C Acronyms and Abbreviations ................................................................................................ 200

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1.1 General Safety

This section describes safety precautions to consider before installing, maintaining, and operating the UPS.

1 Safety Precautions

Declaration



To minimize the risk of personal injury and damage to equipment, read and follow all the precautions in this document before performing any operation. The "DANGER", "WARNING", "CAUTION", and "NOTICE" statements in this document are only supplemental and do not represent all the safety instructions.



Only trained and qualified personnel are allowed to install, operate, and maintain Huawei equipment.

Follow the precautions and special safety instructions provided by Huawei when operating Huawei products. Huawei will not be liable for any consequences that are caused due to violations regarding general safety regulations and equipment design, production, and usage safety standards.

Huawei does not take responsibilities for the following situations:



Operation under severe environments that are not specified in this document.



Installation or use in environments that are not specified in related international standards.



Unauthorized product changes and software code modification.



Operations not complying with the operation instructions and safety precautions in this document.



Damage caused by extreme natural environments.



Damage caused by using batteries provided by Huawei for non-Huawei UPSs.



Damage caused by using batteries not provided by Huawei.

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Power Grid Requirements

A standard UPS can connect to a three-phase, five-wire (L1, L2, L3, N, PE) TT, TN-C, TN-S, and TN-C-S AC power distribution system (IEC60364-1).

Local Laws and Regulations

Equipment operations must comply with local laws and regulations. The safety instructions in this document are only supplemental to local safety regulations.

Personal Requirements

Only Huawei engineers or engineers certified by Huawei are allowed to perform UPS commissioning and maintenance. Otherwise, human injury or equipment damage may occur, and any resulting UPS faults will be beyond warranty scope.

Personnel who plan to install or maintain Huawei equipment must receive thorough training, understand all necessary safety precautions, and master the correct operation methods. Trained and qualified personnel, or personnel certified or authorized by Huawei are:



Allowed to install, operate, and maintain the equipment.



Allowed to remove safety facilities and inspect the equipment.



Allowed to replace or change the devices or components (including software).



Operation personnel must report faults or errors that might cause serious safety issues to related owners.



This product should be installed and used according to the installation and technical, specification requirements found in this manual. Otherwise, the product may be damaged, and the resulting product exceptions or component damage will be beyond the warranty scope.

Grounding Requirements

Devices to be grounded (excluding the energy storage unit) must meet the following requirements:



When installing a device, install the ground cable first. When removing a device, remove the ground cable at the very end.



Do not damage the ground conductor.



Do not operate devices if the ground conductor is not installed. Before operating a device, check the electrical connection of the device to ensure that it is securely grounded.

Personal Safety



Do not operate the product, or handle cables, during thunderstorms.



To avoid electric shocks, do not connect safety extra-low voltage (SELV) circuits to telecommunication network voltage (TNV) circuits.



Before operating a device, wear electrostatic discharge (ESD) clothes, ESD gloves, and an ESD wrist strap. Remove any conductors (such as jewelry or watches) before the operation to avoid electric shocks or burns.

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Device Safety



In the case of fire, leave the building or the equipment room immediately, and turn on the fire alarm bell or make an emergency call. Never enter the building on fire in any case.



If the cabinet provides an ESD jack, wear an ESD wrist strap and insert the ground terminal of the ESD wrist strap into the jack.



Ensure all switches are turned to OFF during device installation.



Power on the UPS only after authorized engineers arrive at the site.



If a C2 UPS is used in residential areas, additional measures must be taken to prevent radio frequency interferences.



If the UPS is used for life-supporting medical apparatus and facilities such as lifts where adequate care has to be taken to ensure personal safety, discuss with the manufacturer in advance about the applicability, settings, management, and maintenance of the UPS, which require special considerations during design.



Before operation, ensure that the device is firmly anchored to the floor or other solid objects, such as a wall or an installation rack.



Ensure ventilation vents are unblocked while the system is operating.



Before powering on the device, ensure that all the screws inside it are securely tightened and will not fall off during operation.



After the installation, remove packing materials from the equipment area.



Replace danger signs that have worn out or are unreadable.



A UPS can be used to serve resistive-capacitive loads, resistive loads, and micro-inductive loads. It is recommended that a UPS not be used for pure capacitive loads, pure inductive loads, and half-wave rectification loads. It does not apply to energy feedback loads.



Do not alter the UPS internal structure or installation procedure unless consent from the manufacturer is given.



Never use water to clean electrical components inside or outside the UPS.



Do not drill holes into a cabinet.

1.2 Electrical Safety

High Voltage



The high voltage power supply provides power for the device operation. Direct or indirect contact with high voltage power sources may result in fatal injury.



Non-standard or incorrect high voltage operations may result in fire and electric shocks.



The personnel who install the AC facility must be qualified to perform high voltage and AC operations.



When selecting, connecting, and routing power cables, ensure compliance with local laws and regulations.

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

When operating the AC power supply facility, ensure compliance with local laws and regulations.



Before connecting cables to the UPS, ensure that the input power and mains power distribution switches and output power distribution switch are turned off.



Use only dedicated tools during high voltage and AC operations.



If the operation is performed in a damp environment, ensure that the device is dry. When water is found in the rack or the rack is damp, switch off the power supply immediately.

High Leakage Current



Ground a device before powering it on. Otherwise, personal injury or device damage may occur.



If a "high leakage current" tag is attached to the panel of the device, ground the protective ground terminal on the device enclosure before connecting the AC power supply to prevent electric shocks.



The UPS can generate high leakage currents. Using a circuit breaker that has the leakage current protection function is not recommended.

Power Cable

Fuse

Do not install or remove power cables when the device is on. Transient contact between the core of the power cable and the conductor may generate electric arcs or sparks, which may cause fire or damage eyesight.



Before moving or reconnecting the UPS, disconnect the mains and batteries, open the output power distribution switch, and wait a period of at least 5 minutes after the UPS completely powers off. Otherwise, electric shocks may occur.



Before installing or removing the power cable, open the power switch.



Before connecting a power cable, check that its label is correct.

If a fuse needs replacing, ensure the new fuse is of the same type and specifications so that the system runs safely.

Backfeed Protection Dry Contact

The UPS can be configured with a backfeed protection dry contact to work with an external automatic circuit breaker, preventing the voltage from flowing back to input terminals over

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static bypass circuits. If device installation and maintenance personnel do not need to use backfeed protection, paste labels on the external bypass input circuit breakers informing that the circuit is connected to the UPS. Disconnect the device from the UPS before performing operations on the circuit.

Electrostatic Discharge

Static electricity generated by human bodies may damage the electrostatic-sensitive components on boards, for example, the large-scale integrated (LSI) circuits.



Wear a pair of ESD gloves or a well-grounded ESD wrist strap when touching the device or handling boards or application-specific integrated circuits (ASICs).



When holding a board, hold its edge without touching any components, especially chips.



Package boards with ESD packaging materials before storing or transporting them.

Figure 1-1 shows how to wear an ESD wrist strap.

Figure 1-1 Wearing an ESD wrist strap

Liquid Prevention



Do not place the product under areas prone to water leakage, such as near air conditioner vents, ventilation vents, or feeder windows of the equipment room. Ensure that there is no condensation inside the product or equipment room. Ensure that no liquid enters the product. Otherwise, short circuits will occur and may result in serious injury or death.



If any liquid is detected inside the product, immediately disconnect the power supply and contact the administrator.

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1.3 Operating Environment

The UPS is used for commercial and industrial purposes only. It cannot be used as a power supply for life support devices.

The TIER4 or TIER3 power supply architecture specified in TIA942, that is, dual power supply routes, must be used in the power supply systems that are crucial to major economic interests or order of public places, such as the national computing center, military command system, emergency command center, railway signal system and control center, civil aviation air traffic control center, airport command center, financial clearing center, and transaction center.

The UPS operating environment must meet the requirements for the climate indicator, mechanically active substance indicator, and chemically active substance indicator in ETSI EN 300 019-1 class 3.6.

Do not expose the equipment or perform any operations in an environment with flammable or explosive gas, or smoke.

Any operation on any electrical device in an environment that has flammable air can cause extreme danger. Strictly obey the operating environmental requirements specified in related use manuals when using or storing the device.

Do not use the UPS in the following environments:



Environment containing flammable gases, corrosive gases, abnormal vibrations, and impacts.



Non-confined environment near the ocean (0–3.7 km) and indoor or semi-indoor environment where the temperature and humidity are not controllable, such as a simple equipment room near the ocean, citizen house, garage, corridor, direct ventilation cabinet, house with only the roof, railway station platform, gymnasium, aquarium, and so on.

1.4 Battery Safety

This section describes precautions for operating batteries.

Before operating batteries, carefully read the safety precautions to ensure correct battery handling and connection is performed, and personal safety is managed.

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

To ensure battery safety and efficient battery management, use the batteries delivered with the UPS. Huawei shall not be responsible for battery damage caused by using non-Huawei batteries for Huawei UPSs.



Ensure lead-acid battery handling is in accordance with local regulations.



Incorrect handling of batteries may cause hazards. When operating batteries, avoid battery short circuits and electrolyte overflow or leakage.



Electrolyte overflow may damage the device by corroding metal parts and circuit boards, and ultimately damaging the circuit boards.



Short circuits caused by incorrect operations may cause serious injuries due to high power of batteries.



Do not reversely connect positive and negative battery terminals.



Use batteries of the specified type. Otherwise, the batteries may be damaged.



Check battery connections periodically to ensure that all screws are securely tightened.



Install or store batteries in clean, cool, and dry environments.



Do not decompose, transform, or damage batteries. Otherwise, battery short circuit, electrolyte leakage, and even personal injury may occur.

Preventative Measures

When installing and maintaining batteries, pay attention to the following points:



Use dedicated insulated tools.



Take measures to protect eyes, such as using eye protection devices.



Avoid skin contact with electrolyte overflow. Wear rubber gloves and protective clothing.



When handling a battery, ensure that its electrodes always point upward. Do not tilt or overturn batteries.



Switch off the power supply during installation and maintenance.

Short Circuit

Battery short circuits may cause personal injury. The high transient current generated by a short circuit may release a surge of power and cause a fire.

To avoid battery short circuits, do not maintain batteries while they are in use.

Harmful Gas

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Do not use unsealed lead-acid batteries. Lead-acid batteries emit flammable gas. Therefore, place and secure lead-acid batteries horizontally to prevent fire or corrosion.

Store lead-acid batteries in a place with good ventilation, and take fire safety precautions.

Battery Temperature

High temperature may result in battery distortion, damage, and electrolyte overflow.



Install or store batteries far away from fire sources and heating devices such as transformers. Never burn batteries.



If the battery temperature exceeds 60°C, check the battery for electrolyte overflow. If electrolyte overflows, handle the leakage immediately.

Electrolyte Leakage

In the case of electrolyte leakage, counteract and absorb the leaking electrolyte immediately.

When moving or handling a battery whose electrolyte leaks, note that the leaking electrolyte may harm human bodies. If the electrolyte leaks, use the following substances to counteract and absorb the leaking electrolyte:



Sodium bicarbonate (baking soda): NaHCO3



Sodium carbonate (soda): Na2CO3

When using substances to counteract and absorb electrolytes, strictly follow the guidelines provided by the battery manufacturer.

If any personnel are exposed to battery electrolyte, wash the exposed area with clean water immediately and seek medical advice if the situation is serious.

1.5 Mechanical Safety

Moving Sharp Objects

Wear protective gloves when moving sharp objects.

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Moving Heavy Objects



Perform operations in accordance with all instructional symbols on the device.



Take caution to avoid injury when moving heavy objects.



When moving or lifting a device, hold the handle or bottom of the device.



When transporting a device using a pallet truck, the forks must be properly positioned to ensure that the device does not topple. No excessive tilt or jolt is allowed during the transportation, and the maximum tolerance of the tilting angle during loading and unloading is 15°. To avoid toppling, secure the device to the pallet truck by using ropes before moving, and assign persons to watch out the device during movement.



Move the cabinet with caution. Any bumping or falling may damage the device.

Figure 1-2 Tilting angle of a cabinet

Handling Fans

Do not insert fingers or boards into the operating fans until the fans are switched off, and have stopped running.

1.6 Laying Out Cables

Binding Signal Cables

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Signal cables must be bound separately from strong-current cables and high-voltage cables.

Laying Out Cables

When the temperature is low, a violent strike or vibrations may damage the cable sheathing. To ensure cable safety, comply with the following requirements:



Cables can be laid, or installed, only when the temperature is higher than 0°C (32°F). Handle cables with caution, especially at lower temperatures.



Before laying out cables that have been stored in temperatures lower than 0°C (32°F), move the cables to an environment that is at the requisite ambient temperature. Store them in this environment for at least 24 hours.



Do not drop the cables directly from the vehicle.



As the insulation layer of a cable may age, or be damaged from high temperatures, ensure a sufficient distance between cables and the DC busbars, shunts, and fuses. Cables prepared by the customer should be flame resistant. Cables must not be routed behind the air exhaust vent of the cabinet. The air exhaust vent should not be blocked by any object.

Before connecting a cable, ensure that the cable and cable label to be used meet the actual installation requirements.

1.7 Information About Foreign Objects near UPS Equipment Installation

The purpose of this note is to provide information and warnings about the potential risks of the operational integrity of an installed UPS. These risks are caused by foreign objects in or near the UPS modules and relevant auxiliary equipment/components.

These risks are particularly high if conductive materials have entered the UPS modules/units or the channels in the relevant auxiliary equipment/components.

Potential risks include damage to installed UPS equipment and subsequent power derating and power failure of loads at critical positions.

Huawei UPS uses the highest safety standard in equipment design to ensure that live parts are not in contact with the exterior and that no foreign object will enter the equipment during operation.

However, when the UPS baffle plate and cover are open and the electrical wiring terminals are exposed by the electrical contractor/installation personnel who are setting up a power line connection, it is almost impossible to ensure that no foreign object will enter Huawei UPS during onsite installation.

It is common to have someone working in the same room as the UPS during onsite installation. Sometimes some people may be working above the UPS and relevant auxiliary equipment/components.

To avoid serious damage to the onsite operation, property hazards, and personal injury including fatal injury, it is the responsibility of each equipment manager or construction

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manager to ensure that no foreign object enters the UPS modules/units or relevant auxiliary equipment/components.

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2.1 Model Description

This document describes the following UPS models:



UPS5000-A-30KTTL



UPS5000-A-40KTTL



UPS5000-A-80KTTL

2 Overview

Figure 2-1 Model number

2.2 Working Principles



indicates an input mode.



2.2.1 Conceptual Diagram

The UPS5000-A is an online double-conversion UPS that uses digital signal processing (DSP) technology and features high efficiency and high power density. Figure 2-2 shows a conceptual diagram for the UPS.

indicates the energy flow direction.

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Figure 2-2 UPS conceptual diagram

2.2.2 Working Modes

2.2.2.1 Normal Mode

When the UPS works in normal mode, the rectifier converts the AC input voltage into the DC voltage, which is then raised to the bus voltage by the power factor correction (PFC) circuit. Then one part of the voltage passes through the DC-DC circuit to charge the battery string, and the other part is converted by the inverter into AC voltage outputs. The two conversions ensure high-precision and high-quality output voltages, protecting loads from interferences such as input harmonics, burrs, and voltage transients. Figure 2-3 shows the conceptual diagram of the UPS working in normal mode.

Figure 2-3 UPS conceptual diagram in normal mode

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2.2.2.2 Bypass Mode

If the inverter does not start or is manually shut down after the UPS is powered on, the bypass supplies power to loads. The UPS automatically transfers from normal mode to bypass mode if it detects power unit overtemperature, overload, or other faults that may cause the inverter to shut down. The bypass power supply is not protected by the UPS which means it may be affected by mains outage, and incorrect AC voltage or frequency. Figure 2-4 shows a conceptual diagram of the UPS working in bypass mode.

Figure 2-4 UPS conceptual diagram in bypass mode

2.2.2.3 Battery Mode

If the AC input voltage is not normal, the UPS transfers to battery mode to obtain power from batteries. The inverter then converts the power into AC outputs. Figure 2-5 shows a conceptual diagram of the UPS working in battery mode.

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Figure 2-5 UPS conceptual diagram in battery mode

2.2.2.4 Maintenance Bypass Mode

The current flows through the maintenance bypass, instead of the power unit or bypass unit. UPS maintenance can be performed in this mode.

Figure 2-6 UPS conceptual diagram in maintenance bypass mode

2.2.2.5 ECO Mode

The economy control operation (ECO) mode is an energy-saving mode, which you can configure on the liquid crystal display (LCD) or web user interface (WebUI). In ECO mode, when the bypass input voltage is within the ECO voltage range, the bypass combined switch turns on, and the bypass supplies power. When the bypass input voltage is beyond the ECO

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voltage range, the UPS transfers from bypass mode to normal mode. In bypass mode or normal mode, the rectifier keeps working and charges batteries using a charger. The ECO mode delivers a higher efficiency. Figure 2-7 shows a conceptual diagram of the UPS working in ECO mode.

Figure 2-7 UPS conceptual diagram in ECO mode

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2.3 Product Description

(1) Monitor display unit (MDU)

(2) Front panel

(3) Support base

(4) Chassis

2.3.1 Appearance

Figure 2-8 UPS5000-A-30 kVA/40 kVA

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Figure 2-9 UPS5000-A-80 kVA

(1) Front panel 1

(2) MDU

(3) Front panel 2

(4) Leveling foot

(5) Castor

(6) Chassis

2.3.2 Product Structure

2.3.2.1 30 kVA/40 kVA UPS

Figure 2-10 and Figure 2-11 show the architecture of the UPS5000-A-30 kVA/40 kVA. Figure 2-10 shows the UPS with the front panel and the MDU removed.

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Figure 2-10 UPS5000-A-30 kVA/40 kVA product structure (front view)

(1) Power unit indicators

(2) Power unit ready switch

(3) Bypass unit indicators

(4) Bypass unit ready switch

(5) MDU reset button

(6) Dual in-line package (DIP) switch

(7) MDU port

(8) Cold-start button

(1) Ventilation panel on the rear panel

(2) Dry contacts

(3) Battery temperature sensor port

(4) Ambient temperature and humidity sensor port or battery monitoring unit (BMU) port

Figure 2-11 UPS5000-A-30 kVA/40 kVA product structure (rear view and enlarged view of certain parts)

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(5) FE port (upper) and RS485 port (lower)

(6) BSC port

(7) Parallel ports

(8) Slot for dry contact card (optional)

(9) UPS mains input terminals (under the cover)

(10) UPS bypass input terminals (under the cover)

(11) Battery wiring terminals (under the cover)

(12) UPS output terminals (under the cover)

(13) Maintenance bypass switch

Indicators

DIP Swit ch

DIP1

DIP2

DIP3

LCD Operation

Function

Remarks

Statu s 1

OFF

N/A

Not defined.

N/A

Connect the BMU by using a 04080298 transfer cable, which is delivered with the BMU.



When no ambient temperature and humidity sensor is installed, connect the BMU to the COM1 port on the UPS.



When an ambient temperature and humidity sensor is installed, connect the BMU to the RS485_OUT port on the sensor.

Both the power unit and bypass unit provide the Run indicator, Alarm indicator, and Fault indicator (from top down).

MDU Reset Button

If the MDU does not work properly, use this button to reset the MDU, without affecting power supply.

DIP Switch

Typically, three toggle switches are reserved for function settings. Table 2-1 describes the DIP switch status.

Table 2-1 DIP switch status

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DIP Swit ch

DIP1

DIP2

DIP3

LCD Operation

Function

Remarks

Statu s 2

OFF

Settings > Restore Default Settings

Restores factory defaults.

After clearing system parameters, battery parameters, monitoring parameters, and logs (operation logs, upgrade logs, and battery test and statistics logs), the MDU does not restart automatically. The settings will take effect after the MDU is powered on again.

Statu s 3

OFF

Hold down the Up and Down buttons at the same time for 5s.

Restores the user name and password.

After restoring the preset user name and password, the MDU restarts automatically, without affecting power supply.

Statu s 4

OFF

Control > Clear historical alarms

Clears historical alarm records.

After clearing historical alarm records, the MDU restarts automatically.

Statu s 5

OFF

Control > Clear operation logs

Clears operation logs.

After clearing operation logs, the MDU restarts automatically.

Statu s 6

OFF

Settings > Advanced Param. > Work mode > Self-load mode

Sets self-load mode.

After entering self-load mode subsequent to inverter startup, the MDU does not restart automatically. Statu s 7

OFF

Not defined.

Statu s 8

Not defined.

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2.3.2.2 80kVA UPS

(1) Bypass unit indicators

(2) MDU port

(3) Bypass unit ready switch

(4) MDU reset button

(5) DIP switch

(6) Power unit indicators

(7) Power unit ready switch

(8) Maintenance bypass switch

(9) Cold-start button

Figure 2-12 UPS5000-A-80 kVA product structure (front view)

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Figure 2-13 UPS5000-A-80 kVA product structure (rear view and enlarged view of certain part)

(1) Dry contacts

(2) Battery temperature sensor port

(3) Ambient temperature and humidity sensor port or BMU port

(4) FE port (upper) and RS485 port (lower)

(5) BSC port

(6) Parallel ports

(7) Slot for dry contact card (optional)

(8) PDU

Silk Screen

Description



UPS5000-A-80 kVA functional components have the same functions as UPS5000-A-30 kVA/40 kVA functional components. For details, see section 2.3.2.1 30 kVA/40 kVA UPS.



Connect the BMU by using a 04080298 transfer cable, which is delivered with the BMU. When no ambient temperature and humidity sensor is installed, connect the BMU to the COM1 port

on the UPS. When an ambient temperature and humidity sensor is installed, connect the BMU to the

RS485_OUT port on the sensor.

2.3.3 Control Port

The UPS5000-A provides a communications slot, a fast Ethernet (FE) port, an RS485 port, parallel ports, a BSC port, basic dry contacts, and other control signal ports.

Parallel Port and BSC Port

To connect UPSs in parallel, use a parallel cable to connect the parallel ports on the ECMs on the two UPSs. A hot swappable BSC is used in a dual-bus system to process the communication information of two UPS systems. Table 2-2 describes the functions of the parallel port and BSC port.

Table 2-2 Functions of the parallel port and BSC port

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Silk Screen

Description

PARALLEL

The PARALLEL port transmits parallel signals. To connect multiple UPSs in parallel, use parallel cables to connect the parallel ports on the UPSs. N UPSs require N parallel cables so that two parallel cables are connected to each UPS, which improves parallel connection reliability.

BSC

This port is used in a dual-bus system to balance output frequencies and phases between UPS systems, ensuring that two buses can switch with each other. The BSC port processes UPS system communications information.

Dry Contacts

Silk Screen

Description

Status

BFP_NO

Triggers bypass backfeed protection.

Normally, the COM and NC dry contacts are closed. If bypass backfeed occurs, the COM and NO dry contacts are closed, opening the bypass input circuit breaker.

BFP_COM

BFP_NC /

Reserved

N/A

BTG

Detects battery grounding failures.

Status:



Closed: battery grounding failure



Open: no battery grounding failure

The initial status is Open.

Port for signal ground

GEN

Detects diesel generator (D.G.) mode.

Status:



Closed: D.G. mode



Open: non-D.G. mode

The initial status is Open.

Port for signal ground

BCB_OL

Detects the battery circuit breaker (BCB) box.

Status:



Grounded: BCB box connected



Floated: BCB box not connected

The initial status is Grounded.

The dry contacts allow the UPS to manage the battery system including the external battery switch and battery monitoring unit (BMU). They also allow the UPS to provide alarm signals for external devices and implement remote emergency power-off (EPO). Table 2-3 describes the dry contacts.

Table 2-3 Dry contacts

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Silk Screen

Description

Status

BCB_STA

Monitors the battery circuit breaker.

Status:



Closed: battery circuit breaker ON



Open: battery circuit breaker OFF

The initial status is Open.

BCB_0V

Port for signal ground

N/A

BCB_DRV

Controls the trip of the battery switch in the BCB box.

Voltage:



0 V: battery switch not tripped



12 V: battery switch tripped

The initial port voltage is 0 V.

SWITCH STATUS_OUT

Monitors the UPS output circuit breaker on the output power distribution cabinet (PDC).

Status:



Open: circuit breaker OFF



Closed: circuit breaker ON

The initial status is Closed.

SWITCH STATUS_0V

Port for signal ground

N/A

SWITCH STATUS_MT

Monitors the maintenance circuit breaker on the output PDC.

Status:



Open: circuit breaker ON



Closed: circuit breaker OFF

The initial status is Open.

SWITCH STATUS_0V

Port for signal ground

N/A

SWITCH STATUS_BP

Monitors the bypass input circuit breaker on the input PDC.

Status:



Open: circuit breaker OFF



Closed: circuit breaker ON

The initial status is Closed.

SWITCH STATUS_0V

Port for signal ground

N/A

EPO_12V

12 V power supply

N/A

EPO_NO

Triggers EPO.

The initial status is Open. EPO is triggered if the dry contact is closed.



NO is short for normally open, and NC is short for normally closed.



When the dry contact signal cable of an external device connects to UPS dry contacts, ensure that the silk screen names of the dry contacts at both ends of the cable match with each other.

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Others

Port

Silk Screen

Description

Battery temperature sensor port

B_TEMP

Connects to the indoor battery temperature sensor.

Southbound communication port 1

COM1

Connects to an ambient temperature and humidity sensor or BMU over two wires.

Northbound communications port

Connects to the network port on a PC.

RS485

Connects to a northbound network management device or third-party network management device over two wires.

Description

GND

N/A

RS485-

RS485+

N/A

12V_PORT

Table 2-4 describes other control signal ports.

Table 2-4 Signal ports

Figure 2-14 COM1 pins

Table 2-5 COM1 pin definition

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Description

RS485_T+

RS485_T-

N/A

RS485_R+

RS485_R-

GND

N/A

Configuration

Application Scenario

Figure 2-15 RS485 pins

Table 2-6 RS485 pin definition

If cables are prepared onsite, follow the three methods below:



Connect pin 1 and pin 2. Pin 1 connects to RS485+ and pin 2 connects to RS485–.



Connect pin 4 and pin 5. Pin 4 connects to RS485+ and pin 5 connects to RS485–.



Connect pins 1, 2, 4, and 5. Twist cables to pin 1 and pin 4 into one cable and then connect it to RS485+. Twist cables to pin 2 and pin 5 into one cable and then connect it to RS485–.

2.4 Typical configurations

Table 2-7 Typical UPS configurations

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Configuration

Application Scenario

Single UPS

Supplies power to common loads.

Parallel system

Supplies power to important loads in small- and medium-sized data centers. It features high availability and strong transient overload capability.

Dual-bus system

The dual-bus system is suitable for scenarios where high availability requirements are posed for power supply. The dual-bus system supplies power to important loads in large- and medium-sized equipment rooms and data centers.

In addition to common parallel system advantages, the dual-bus system also provides outstanding availability and eliminates bottleneck failures. However, configuration of the dual-bus system is complex.

A 1+1 parallel system is a typical configuration. You can set the number of requisite UPSs and redundant ones on the LCD or WebUI.

2.4.1 Single UPS

The UPS5000-A is a high frequency tower-mounted UPS. It uses a unit-level design to handle power functionality, and provides an embedded maintenance bypass switch to ensure maintenance with power on. Figure 2-2 shows the conceptual diagram of a single UPS.

2.4.2 Parallel System

In a parallel system, the mains input, bypass input, and AC output terminals between cabinets are connected in parallel. Energy control modules (ECMs) on each UPS are connected over parallel cables. The parallel connections synchronize the UPS outputs to supply power to loads. If one UPS fails, the other UPSs continue supplying power to loads.

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Figure 2-16 Conceptual diagram of an N+X parallel system

2.4.3 Dual-Bus System

A dual-bus system consists of two independent UPS systems. Each of these UPS systems in turn consists of one or more UPSs connected in parallel. Of the two UPS systems, one is a master system, and the other is a slave system. This design makes the dual-bus system highly reliable and suitable for loads with multiple input terminals. An optional static transfer switch (STS) can be installed to start the bus synchronization controller (BSC). The UPS systems work in normal mode or bypass mode.

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Figure 2-17 Conceptual diagram of a dual-bus system

Component

Model

Function

Reference Document

BCB-BOX



PDC-0250DC03 84BXA



PDC-0400DC03 84BXA



PDC-0630DC03 84BXA



PDU8000-0125D CV8-BXA001



PDU8000-0250D CV8-BXA001



PDU8000-0400D CV8-BXA001



PDU8000-0630D CV8-BXA001



PDU8000-0800D CV8-BXA001



Controls the connection between battery strings and the UPS.



Provides overload protection, short-circuit protection, and remote trip control.

PDU8000-(0125, 0250, 0400, 0630,

0800) DCV8-BXA001 BCB Box User Manual

2.5 Optional Components

The UPS5000-A provides a variety of optional components to address various customer requirements.

Table 2-8 Optional components

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Component

Model

Function

Reference Document

Battery bus bar (BBB) box



PDU8000-0630D CV8-BGA001



PDU8000-1250D CV8-BGA001



PDU8000-2000D CV8-BGA001

Converges the energy of multiple battery strings.

PDU8000-(0630, 1250, 2000) DCV8-BGA001 BBB Box User Manual

Antiseismic kit

N/A

Reinforces the cabinet so that the cabinet meets the requirements of 9 degree seismic fortification intensity.

N/A

Dry contact card

RMS-RELAY01A

Provides output dry contacts.

UPS5000 Dry Contact Extended Card User Manual (03021RKN)

Ambient temperature and humidity sensor

N/A

Monitors the ambient temperature and humidity.

UPS Ambient Temperature and Humidity Sensor User Manual

Battery monitor unit (BMU)

N/A



Monitors battery voltages and temperatures as well as battery string charge and discharge currents.



Communicates with the UPS over Modbus.

UPS Battery Monitor Unit User Manual (02231MNL)

Parallel cable

5 m, 10 m, or 15 m

Connects UPSs in parallel.

N/A

BSC cable

5 m, 10 m, 15 m

Transmits bus synchronization signals in a dual-bus system.

N/A



Antiseismic kits can be equipped only on the UPS5000-A-80 kVA.



Connect the BMU by using a 04080298 transfer cable, which is delivered with the BMU. When no ambient temperature and humidity sensor is installed, connect the BMU to the COM1 port

on the UPS. When an ambient temperature and humidity sensor is installed, connect the BMU to the

RS485_OUT port on the sensor.

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3.1 Installation Preparations

3.1.1 Site

Dimensions

3 Installation

Figure 3-1 UPS5000-A-30 kVA/40 kVA installation dimensions (unit: mm)

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Figure 3-2 UPS5000-A-80 kVA installation dimensions (unit: mm)

Installation Environment



Do not install the UPS in high temperature, low temperature, and damp areas. For details about environmental specifications.



Install the UPS far away from water sources, heat sources, and inflammable or explosive materials. Keep the UPS free from direct sunlight, dust, volatile gases, corrosive materials, and salty air.



Do not install the UPS in environments with conductive metal scraps in the air.



The optimal operating temperatures for valve regulated lead acid (VRLA) batteries are 20–30°C. Operating temperatures higher than 30°C shorten the battery lifespan, and operating temperatures lower than 20°C reduce the battery backup time.

Installation Clearances

Reserve sufficient clearances around the cabinet for operations and ventilation:

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

Tools and Meters

Electric pallet truck

Manual pallet truck

Ladder

Rubber mallet

Reserve a clearance of at least 800 mm on the front of the cabinet.



Reserve a clearance of at least 300 mm on the top of the cabinet.



Keep a clearance of at least 300 mm at the rear of the cabinet. If you need to perform operations at the rear of the cabinet, keep a clearance of at least 800 mm.

Figure 3-3 takes the UPS5000-A-30 kVA/40 kVA as an example to show the installation

clearance.

Figure 3-3 Installation clearances (unit: mm)

3.1.2 Tools and Instruments

Insulate installation tools to prevent electric shocks.

Prepare the following tools and meters indicated in Table 3-1 for installation.

Table 3-1 Tools and meters

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Tools and Meters

Hammer drill and drill bit Φ16

Hand-held electric drill

Alloy hole saw

Heat gun

Diagonal pliers

Crimping tools

Wire stripper

Electric hydraulic pliers

Clamp meter

Multimeter

Cable tie

Level instrument

Polyvinyl chloride (PVC) insulation tape

Cotton cloth

Label

Electrician's knife

Electrostatic discharge (ESD) gloves

Protective gloves

Insulated gloves

Insulation protective shoes

Torque screwdriver

Cable cutter

Brush

Flat-head screwdriver

(2–5 mm)

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Tools and Meters

Phillips screwdriver (M3/M4/M5/M6/M

Insulated torque wrench

(M6/M8/M12/M16)

Heat shrink tubing

Insulated adjustable wrench

Item

30 kVA

40 kVA

80 kVA

Mains input

Mains input current (A)

142

Recommended cross-sectional area (mm2)

4 x 10

4 x 16

4 x 50

Bypass input

Bypass input current (A)

122

Recommended

4 x 10

4 x 16

4 x 35

Table 3-1 lists only the common tools for installation and cable connection. For more dedicated tools

required, see the corresponding component manuals. Prepare tools based on site requirements.

3.1.3 Power Cables



The UPS can generate large leakage currents. A circuit breaker that provides leakage current protection is not recommended.



If UPSs are connected in parallel, input and output power cables for each UPS should have the same length and specifications.

Table 3-2 lists the recommended cross-sectional areas for power cables. Table 3-3 lists the

requirements for power cable connectors. Table 3-7 lists the recommended UPS input switch configurations.

Table 3-2 Recommended cross-sectional areas for power cables

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Item

30 kVA

40 kVA

80 kVA

cross-sectional area (mm2)

Output

Output current (A)

122

Recommended cross-sectional area (mm2)

4 x 10

4 x 16

4 x 35

N (Increase the cross-sectio nal area at non-linear load)

Battery input

Nominal discharge current (384 V voltage; thirty-two 12 V batteries) (A)

110

219

Maximum discharge current (end of discharge current of thirty-two 12 V batteries, namely, 1.67 V/cell discharge current of 192 2 V cells) (A)

131

262 Recommended

cross-sectional area (mm2)

3 x 16

3 x 35

3 x 95

–

Ground cable

Recommended cross-sectional area (mm2)

1 x 10

1 x 16

1 x 25

When the mains input and bypass input share a power source, configure input power cables as mains input power cables. The cables listed in Table 3-2 are used only when the following requirements are met:



The cables are installed along the wall or on the floor (IEC-60364-5-52 C standards).



The ambient temperature is 30ºC.



The AC voltage loss is less than 3%, and the DC voltage loss is less than 1%. The recommended cable diameters in Table 3-2 meet the basic through-current requirements. Users should evaluate the line voltage loss based on the actual cable length. If the voltage loss exceeds the requirements, increase the cable diameter properly.



90°C copper cables are used.

If external conditions such as cable layout or ambient temperatures change, perform verification in accordance with the IEC-60364-5-52 or local regulations.

When selecting, connecting, and routing power cables, follow local safety regulations and rules.

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The currents listed in Table 3-2 are measured at a rated voltage of 380 V; if the rated voltage is 400 V,

Model

Connector

Connection Mode

Bolt Specificat ions

Bolt Hole Diameter

Torque

30 kVA-40 kVA

Mains input connectors

Crimped OT terminal

6.5 mm

4.5 N·m 80 kVA

Crimped DT terminal

9 mm

13 N·m

30 kVA-40 kVA

Bypass input connectors

Crimped OT terminals

6.5 mm

4.5 N•m 80 kVA

Crimped DT terminal

9 mm

13 N•m

30 kVA-40 kVA

Battery input connectors

Crimped OT terminal

9 mm

13 N•m 80 kVA

Crimped DT terminal

M10

11 mm

27 N•m

30 kVA-40 kVA

Output connectors

Crimped OT terminal

6.5 mm

4.5 N•m 80 kVA

Crimped DT terminal

9 mm

13 N•m

30 kVA-40 kVA

Grounding connectors

Crimped OT terminal

6.5 mm

4.5 N•m 80 kVA

Crimped DT terminal

9 mm

27 N•m

multiply the currents by 0.95; if the rated voltage is 415 V, multiply the currents by 0.92. If primary loads are non-linear loads, increase the cross-sectional areas of neutral wires 1.5–1.7 times.

Use OT or DT terminals of the specifications listed in Table 3-3, Table 3-4, and Table 3-5 to prevent short circuits.

When you connect power cables, comply with the tightening torque listed in Table 3-3 to ensure secure connections and prevent safety risks.

Table 3-3 Power cable connector requirements

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Figure 3-4 OT terminal for the UPS5000-A

Nominal conductor cross-secti onal area (mm2)

OT terminal hole diameter d2 (mm)

Dimensions (mm)

W F L E D

6.4±0.2

12.0±0.2

9.3±0.2

23.8±0.3

8.5±0.2

7.0

1.25±0.1

6.4±0.2

12.0±0.2

13.3±0.2

29.8±0.3

10.5±0.2

9.0

1.5±0.1

9±0.2

22.0±0.2

16.0±0.2

41.0±0.3

14.0±0.2

13.3

1.8±0.1

Table 3-4 OT terminal specifications for the UPS5000-A

Figure 3-5 DT terminal for the UPS5000-A

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Table 3-5 DT terminal specifications for the UPS5000-A

Nomin al conduc tor cross-s ectiona l area (mm2)

Bolt diamet er (mm)

ΦH

(mm)

d(mm)

D(mm)

W(mm)

L(mm)

Nomin al value

Deviati on

Nomin al value

Deviati on

Refere nce value

Nomin al value

Deviation

25 6 6.5

±0.30 10

0–0.12

±1.50

35 8 8.4

8.5

0–0.16

50 8 8.4

±0.40

10.5

120

±0.50 20

0–0.24 28

150

103

Circuit Breaker

30 kVA

40 kVA

80 kVA

Mains input front-end circuit breaker

80A/3P

100A/3P

160A/3P

Bypass input front-end circuit breaker

80A/3P

100A/3P

160A/3P

UPS Capacity

Component

Specifications

Manufacturer

30 kVA

Mains input circuit breaker

T1N160 TMD R80 FFC 3P

ABB (recommended when the short-circuit current of the circuit breaker is located is less than 36 kA.)

Bypass input circuit breaker

T1N160 TMD R80 FFC 3P

Table 3-6 Input front-end circuit breaker configurations

The UPS can generate large leakage currents. A circuit breaker that provides leakage current protection is not recommended.

Table 3-7 Recommended input front-end and output back-end circuit breakers

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UPS Capacity

Component

Specifications

Manufacturer

40 kVA

Mains input circuit breaker

T1N160 TMD R100 FFC 3P

Bypass input circuit breaker

T1N160 TMD R100 FFC 3P

80 kVA

Mains input circuit breaker

T1N160 TMD R160 3P FFC

Bypass input circuit breaker

T1N160 TMD R160 3P FFC

30 kVA

Output branch circuit breaker

S203 C50

ABB (recommended when the short-circuit current of the circuit breaker is located is less than 6 kA.)

40 kVA

S203 C63

80 kVA

T1N160 TMD R125 3P FFC

ABB (recommended when the short-circuit current of the circuit breaker is located is less than 36 kA.)



The input front-end and output back-end circuit breakers recommended in Table 3-7 are for reference only.



If multiple loads are connected, branch circuit breaker specifications must not exceed the recommended specifications.



The circuit breaker selection principle is to protect loads and cables, and the cascading principle is to realize specific protection.

3.1.4 Unpacking and Checking

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

Only trained personnel are allowed to move the UPS. Use a pallet truck to transport the UPS box secured to a wooden support to the installation position.



To prevent the UPS from falling over, secure it to a pallet truck using ropes before moving it.



To prevent shocks or falls, move the UPS gently. Unpack it and take care to prevent scratches. Keep the UPS steady during unpacking.



If the UPS installation environment is in poor condition and the UPS will be stored for a long time after it is unpacked, wrap the UPS with the original plastic coat to prevent dust.

3.1.4.1 30 kVA/40 kVA UPS

Procedure

Step 1 Visually inspect the UPS appearance for shipping damage. If any shipping damage is founded,

report it to the carrier immediately.

Step 2 Use a pallet truck to transport the UPS to the installation position. Step 3 Cut and remove the binding tape, as shown in Figure 3-6.

Figure 3-6 Removing binding tape

Step 4 Remove packing materials, as shown in Figure 3-7.

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Figure 3-7 Removing packing materials

Step 5 Remove the foam and moisture-proof bag, and take out the UPS. Step 6 Check that the UPS is intact.

1. Visually inspect the UPS appearance for shipping damage. If it is damaged, notify the

carrier immediately.

2. Check that the fittings comply with the packing list. If some fittings are missing or do

not comply with the packing list, record the information and contact your local Huawei office immediately.

Step 7 Place the UPS in the installation position.

----End

3.1.4.2 80 kVA UPS

Procedure

Step 1 Visually inspect the UPS appearance for shipping damage. If any shipping damage is founded,

report it to the carrier immediately.

Step 2 Use a pallet truck to transport the UPS to the installation position. Step 3 Hold the sliding plate steadily, cut and remove the binding tape, and put down the sliding

plate gently, as shown in Figure 3-8.

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Figure 3-8 Removing binding tape

Step 4 Remove the packing materials and foam, as shown in Figure 3-9.

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Figure 3-9 Removing packing materials

Step 5 Remove the moisture-proof bag. Step 6 Check that the UPS is intact.

1. Visually inspect the UPS appearance for shipping damage. If any damage is founded,

notify the carrier immediately.

2. Check that the fittings comply with the packing list. If some fittings are missing or do

not comply with the packing list, record the information and contact your local Huawei office immediately.

Step 7 Remove the UPS front panel, as shown in Figure 3-10.

Remove both the upper and lower front panels from the UPS. Removing the upper one facilitates removal of L-shaped brackets. Removing the lower one prevents itself from falling off during transportation.

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Figure 3-10 Removing UPS front panels

1. Press the button on both sides of UPS front panel 1.

2. Remove UPS front panel 1.

3. Remove the screws of UPS front panel 2.

4. Remove UPS front panel 2.

Before you remove the front panel 2, disconnect the ground cable connected to the chassis.

Step 8 Remove the L-shaped bracket that secures the chassis to the pallet, as shown in Figure 3-11.

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Figure 3-11 Removing the L-shaped bracket

Store the removed L-shaped bracket, which will be used to secure the UPS.

Step 9 Push the cabinet along the sliding plate to the installation position.

----End

3.2 Installing a Single UPS

3.2.1 Installing the UPS5000-A-30 kVA/40 kVA

Tower-mounting the UPS

Step 1 Assemble support bases. When you assemble two modules, snap the fasteners into the holes

to secure them, as shown in Figure 3-12.

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Figure 3-12 Assembling support bases

Step 2 Pull the back-end handle out of the UPS, as shown in Figure 3-13.

Figure 3-13 Pulling the back-end handle

1. Loosen the back-end handle screw s anticlockwise.

2. Pull the handle out of the groove.

Step 3 Hold the front-end handle and back-end handle to place the UPS on support bases. Each UPS

requires two pairs of support bases, and the distance between the two pairs of support bases must be 480 mm or more, as shown in Figure 3-14.

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Figure 3-14 Placing the UPS on support bases (unit: mm)

Step 4 Push the back-end handle into the groove, as shown in Figure 3-15. For details, see the

instructions on the chassis.

Figure 3-15 Pushing the back-end handle into the groove

1. Press the back-end handle switch.

2. Push the handle into the groove.

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3. Tighten the screws clockwise to secure the handle.

Step 5 Install the front panel, as shown in Figure 3-16.

Figure 3-16 Installing the front panel

1. Insert the bottom half of the panel into the UPS.

2. Push the top half of the panel until it is securely fastened in place.

Step 6 (Recommended) Install a lock for the maintenance bypass switch to prevent misoperations, as

shown in Figure 3-17. The required lock core diameter is 5 mm to 6.3 mm.

Figure 3-17 Installing a lock for the maintenance bypass switch (unit: mm)

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----End

Rack-mounting the UPS

Step 1 Remove the left and right side panels, handles, and MDU from the UPS chassis, as shown in

Figure 3-18. Before you remove the MDU, remove the cables that are connected to the

chassis.

Figure 3-18 Removing the left and right side panels, handles, and MDU from the UPS chassis

1. Remove the rubber plug from the chassis.

2. Remove the left and right side panels.

3. Remove the handle.

4. Remove the MDU.

Before you remove the side panels, unscrew the mounting ear of the power unit.

Step 2 Place the ready switches on the power unit and bypass unit into the unlocked state , and

remove the power unit and bypass unit, as shown in Figure 3-19.

Two persons are required to move a power unit. During movement, keep the power unit and bypass unit always in a horizontal direction.

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Figure 3-19 Removing the power unit and bypass unit

Step 3 Install guide rails (2 U) on the cabinet.

1. Align the lower edge of a guide rail with the lower edge of a U scale, and then engage

the mounting brackets on both ends of the guide rail into the mounting holes, as shown in Figure 3-20.

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Figure 3-20 Engaging the mounting brackets (rear view)

(1) Scale

(2) Mounting bracket

(3) Lower edge of a U scale

Ensure that the lower edge of the guide rail is aligned with the lower edge of a U scale.

2. Install floating nuts on the front of the guide rail, as shown in Figure 3-21. Figure 3-22

shows the installation method.

Figure 3-21 Installation positions of floating nuts

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Figure 3-22 Installing floating nuts

Install floating nuts by using a flat-head screwdriver.

3. Secure the back end of the guide rail with panel screws, as shown in Figure 3-23. Do not

install panel screws on the front end of the guide rail. Use the same method to install the other guide rail.

Figure 3-23 Securing the back end of the guide rail (rear view)

In this step, secure only the back end of the guide rail.

Step 4 Insert the subrack into the cabinet, as shown in Figure 3-24. Then secure the front end of the

guide rail with panel screws.

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Figure 3-24 The position of the subrack

Step 5 Replace the left and right mounting brackets for the power unit, as shown in Figure 3-25.

Figure 3-25 Replacing a mounting bracket

Step 6 Insert the power unit and bypass unit into the subrack, and secure them with screws, as shown

in Figure 3-26.

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After you insert the power unit and bypass unit, rotate the ready switches to locked state .

Figure 3-26 Fixing the power unit and bypass unit

Step 7 Rotate the MDU (removed in Step 1) clockwise 90 degrees, install it along with the support,

and connect cables, as shown in Figure 3-27.

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Figure 3-27 Installing the MDU

Step 8 Install the front panel and rotate the Huawei logo on it clockwise 90 degrees, as shown in

Figure 3-28.

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Figure 3-28 Installing the front panel

Step 9 (Recommended) Install a lock for the maintenance bypass switch, as shown in Figure 3-17.

----End

3.2.2 Installing the UPS5000-A-80 kVA

Installing a UPS by Using Leveling Feet

Step 1 Lower the four leveling feet at the bottom of the cabinet using a wrench until all the four

castors at the bottom hang in the air and the leveling feet bear the whole cabinet weight, as shown in Figure 3-29.

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Figure 3-29 Lowering the leveling feet

Step 2 Check the cabinet levelness using a level. If the cabinet is not leveled, adjust the leveling feet. Step 3 Reinstall the upper and lower front panels. Step 4 (Recommended) Install a lock for the maintenance bypass switch to prevent misoperations, as

shown in Figure 3-30. The required lock core diameter is 5–10 mm.

Figure 3-30 Lock for the maintenance bypass switch

----End

Installing a UPS by Using L-shape Brackets

Step 1 Determine the position for installing the UPS and mark mounting holes, as shown in Figure

3-31.

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Figure 3-31 Marking-off template (Unit: mm)

(1) Edge of the cabinet rear

(2) Mounting holes for antiseismic kits

(3) Mounting holes for L-shaped brackets

(1) M12 bolt

(2) Spring washer

(3) Flat washer

(4) Expansion sleeve

Pay attention to the front and back edge lines of the cabinet, preventing incorrect location.

Step 2 Use a hammer drill to drill holes for installing the expansion bolts and then install the four

expansion bolts in the holes. Figure 3-32 shows an expansion bolt. Figure 3-33 shows how to install an expansion bolt.

Figure 3-32 Expansion bolt

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Knock the expansion bolts into the holes until the expansion sleeve completely fits into the hole. The expansion sleeve must be completely buried under the ground to facilitate subsequent installation.

Figure 3-33 Installing an expansion bolt (unit: mm)

1. Drill holes in the ground by using a hammer drill. The hole depth is 52 mm to 60 mm.

2. Partially tighten the expansion bolt and vertically insert it into the hole. Knock the

expansion bolt using a rubber mallet until the expansion sleeve is fully inserted into the hole.

3. Partially tighten the expansion bolt.

4. Remove the bolt, spring washer, and flat washer.

Step 3 Move the UPS to the installation position over its castors. Step 4 Lower the four leveling feet at the bottom of the UPS using a wrench until all the four castors

at the bottom hang in the air and the leveling feet bear the whole cabinet weight.

Step 5 Secure the two L-shaped brackets to the front and rear of the chassis using eight M6 screws.

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Figure 3-34 Installing the L-shaped brackets

Step 6 Adjust the cabinet position so that the expansion bolt holes are aligned with the four holes at

the bottom of the cabinet.

Step 7 Check the cabinet levelness using a level. If the cabinet is not leveled, adjust the leveling feet. Step 8 Secure the two L-shaped brackets to the ground using four M12x60 expansion bolts, as shown

in Figure 3-34.

Step 9 Install a lock for the maintenance bypass switch, as shown in Figure 3-30.

----End

Rack-mounting the UPS



The rack must comply with IEC 297. The rack depth is greater than or equal to 1100 mm. The distance between mounting bars on the same side must be greater than 820 mm.



Reserve sufficient clearance in the lower part of the rack for bottom cable routing.

Step 1 Install guide rails at the bottom of the rack. The guide rail is 2 U high. The methods for

installing guide rails on the left and right sides are the same.

Install the UPS5000-A-80 kVA at the bottom of the rack because it uses bottom cable routing and weighs more than 160 kg.

1. Level the bottom plane of a guide rail with the bottom line of the U scale 01, and engage

the mounting brackets on both ends of the guide rail into the mounting holes of the mounting bar, as shown in Figure 3-35.

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Figure 3-35 Engaging mounting brackets (front view)

(1) Scale

(2) Mounting bracket

(3) Lower edge of a U scale

2. Use panel screws to secure the front and back ends of the guide rail, as shown in Figure

3-36.

Do not fully tighten panel screws, which facilitates subsequent installation of reinforced beams.

Figure 3-36 Securing a guide rail (front view)

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Step 2 Install one reinforced beam on the front and at the rear of the rack, as shown in Figure 3-37.

Then tighten the panel screws.

Figure 3-37 Installing a reinforced beam (front view)

Step 3 Install four floating nuts on the front of each guide rail.

1. Use a scale plate to determine the installation positions of floating nuts. Figure 3-38

shows a scale plate.

Level the Bottom line on the scale plate with the bottom line of the U sale 01 on the rack. Install floating nuts onto the mounting holes for the mounting bar that corresponds to Hole location lines.

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Figure 3-38 Scale plate

2. Install floating nuts, as shown in Figure 3-22. Figure 3-39 shows the installation

positions of floating nuts.

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Figure 3-39 Installation positions of floating nuts

Step 4 Remove the UPS front panels, MDU (with its support), power units, and bypass unit, as

shown in Figure 3-40. Before you move the power unit and bypass unit, rotate the ready switches to unlocked state .

Two persons are required to move a power unit. Keep the power units and bypass unit horizontal during movement.

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Figure 3-40 Removing the UPS front panels, MDU, power units, and bypass unit

1. Remove UPS front panel 1.

2. Remove UPS front panel 2.

3. Remove the MDU.

4. Remove the power units and bypass unit.

Step 5 Install mounting brackets on the chassis, two on the left and two on the right, as shown in

Figure 3-41.

Figure 3-41 Installing mounting brackets

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Step 6 Place the chassis into the rack, as shown in Figure 3-42.

Figure 3-42 Placing the chassis into the rack

Step 7 Adjust the four leveling feet using an adjustable wrench until the bottom of the chassis is level

with the Edge of cabinet line on the scale plate, as shown in Figure 3-43.

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Figure 3-43 Adjusting the leveling feet

(1) Bottom of the chassis

(2) Edge of cabinet line on the scale plate

Step 8 Check the cabinet levelness using a level. If the cabinet is not leveled, adjust the leveling feet. Step 9 Secure the chassis to the rack, as shown in Figure 3-44.

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Figure 3-44 Securing the chassis to the rack

Step 10 Reinstall the power units, bypass unit, MDU (with its support), and UPS font panels.

After you insert the power unit and bypass unit, rotate the ready switches to locked state .

Step 11 (Recommended) Install a lock for the maintenance bypass switch, as shown in Figure 3-30.

----End

3.2.3 (Optional) Installing Antiseismic Kits

Step 1 Determine the positions for installing antiseismic kits based on the marking-off template. Step 2 Drill holes for installing expansion bolts, and install expansion bolts. Step 3 Move the UPS to the installation position over its castors. Step 4 Remove the lower front panel of the UPS and PDU cover. Step 5 Secure two antiseismic kits to the front and rear of the chassis using eight M6 screws and four

M12 screws.

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Figure 3-45 Securing antiseismic kits to the cabinet

Step 6 Adjust the cabinet position so that the expansion bolt holes are aligned with the four holes at

the bottom of the cabinet.

Step 7 Check the cabinet levelness using a level. If the cabinet is not leveled, adjust the leveling feet. Step 8 Secure the two antiseismic components to the floor using four M12x60 expansion bolts, as

shown in Figure 3-45.

Step 9 Reinstall the lower front panel of the UPS and PDU cover.

----End

3.2.4 (Optional) Installing a Battery Monitoring Unit

Connect the BMU by using a 04080298 transfer cable, which is delivered with the BMU.



When no ambient temperature and humidity sensor is installed, connect the BMU to the COM1 port on the UPS. Figure 3-46 shows the position of the BMU on the UPS.



When an ambient temperature and humidity sensor is installed, connect the BMU to the RS485_OUT port on the sensor. Figure 3-47 shows the position of the BMU on the UPS.

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Figure 3-46 Connecting the UPS and BMU (without ambient temperature and humidity sensor)

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Figure 3-47 Connecting the UPS and BMU (with ambient temperature and humidity sensor)

3.2.5 Installing Batteries

Context



Before installing batteries, read through the battery safety precautions, obtain the delivered battery installation guide, and install batteries as instructed.



Place the batteries in a correct way to prevent vibrations and shocks.



Install the batteries from the lower layer to the upper layer to prevent falling over due to imbalance.

Procedure

Step 1 Install the battery rack and batteries.

For details, see the battery installation guide delivered with batteries.

Step 2 (Optional) Install a BCB box.

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After you install the BCB box, adjust the end of discharge (EOD) threshold based on backup time, which prevents overcurrent disconnection. The default values are as follows:



Backup time < 1 h: Set the EOD threshold to 1.67 V/cell.



3 h > Backup time ≥ 1 h: Set the EOD threshold to 1.75 V/cell.



Backup time ≥ 3 h: Set the EOD threshold to 1.80 V/cell.

Step 3 (Optional) Install a BBB box.

----End

3.2.6 UPS Cable Connection Reference

Context



Keep away from cabinets when preparing cables to prevent cable scraps from entering the cabinets. Cable scraps may cause ignition during power-on and result in personal injury and device damage.



After installing cables, clean the cabinet top, bottom, copper bar wiring positions, and other positions. Ensure that there is no dust or scraps inside and around cabinets.



Prepare terminals onsite. The length of the copper wire should be the same as that of the part of the terminal that covers the conductor.

Procedure

Step 1 Route a cable into the cabinet and bind it to a nearby beam. Step 2 Pull the cable to the copper bar to which the cable is to be connected, determine the cable

Step 3 Pull the marked cable out of the cabinet, cut the cable from the marked position, strip the

length, and mark the cable at the position where the cable is to be cut.

cable, and crimp a terminal.

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Figure 3-48 Preparing a cable terminal outside the cabinet

Choose an appropriate cabling route based on the actual situation. The figure is for reference only.

Step 4 Connect the cable with a crimped terminal to the corresponding copper bar. Step 5 Clean foreign matter inside the cabinet.

----End

3.2.7 Routing Cables

3.2.7.1 Cable Routes

Context

Cable routings for only the UPS5000-A-80 kVA are elaborated in this section.

Procedure

Step 1 Remove the power distribution unit (PDU) cover, as shown in Figure 3-49.

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Figure 3-49 Removing the PDU cover

Step 2 Route power cables.

1. Remove 1–3 covers from the bottom of the cabinet based on the number and positions of

cables, as shown in Figure 3-50.

Figure 3-50 Removing small covers from the bottom of the cabinet

2. Figure 3-51 shows the power cables routed from the bottom of the cabinet.

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Figure 3-51 Routing power cables from the bottom of the cabinet

(1) Bypass input power cable

(2) Mains input power cable

(3) Output power cable

(4) Battery input power cable

----End

3.2.7.2 Connecting Ground Cables

If you do not ground the UPS as required, electromagnetic interference, electric shocks, or fire disasters may occur.

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

Before cable connections, ensure that all UPS input switches are OFF. Paste warning labels to prevent operation on the switches.



The basic rule for routing cables is: from inside out and from bottom up.

Figure 3-52 Grounding the UPS5000-A-30 kVA/40 kVA

The three ground cables shown in Figure 3-52 are all connected by default.

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Figure 3-53 Grounding the UPS5000-A-80 kVA

(1) Input N

(2) Input 1L1

(3) Input 1L2

(4) Input 1L3

3.2.7.3 Connecting AC Input Power Cables

Single Mains

Step 1 If the mains input and bypass input share a power source, connect AC input power cables to

mains input terminals N, and 1L1, 1L2, 1L3 on the UPS.

Figure 3-54 Connecting AC input power cables to the UPS5000-A-30 kVA/40 kVA

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(1) Input N

(2) Input 1L1

(3) Input 1L2

(4) Input 1L3

Figure 3-55 Connecting AC input power cables to the UPS5000-A-80 kVA

Dual Mains

Step 1 Remove the copper bars between mains input terminals and bypass input terminals, as shown



Mains and bypass input of the delivered UPSs by default share one power source. The neutral terminals of the mains and the bypass are interconnected internally. No copper bars are required.



The neutral terminals of the UPS5000-A-80 kVA are near the interior of the cabinet. It is recommended to connect the neutral cable before other power cables.

----End

in Figure 3-56 and Figure 3-57.

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Figure 3-56 Removing copper bars from the UPS5000-A-30 kVA/40 kVA

Install the copper bars from within outwards based on the ascending order of their numbers.

Figure 3-57 Removing copper bars from the UPS5000-A-80 kVA

Step 2 Connect mains input cables to mains input terminals N, and 1L1, 1L2, 1L3 on the UPS

cabinet. Connect bypass input cables to bypass input terminals N, and 2L1, 2L2, 2L3 on the UPS cabinet, as shown in Figure 3-58 and Figure 3-59.

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Figure 3-58 Connecting AC input power cables to the UPS5000-A-30 kVA/40 kVA

(1) Bypass input N

(2) Bypass input 2L1

(3) Bypass input 2L2

(4) Bypass input 2L3

(5) Mains input N

(6) Mains input 1L1

(7) Mains input 1L2

(8) Mains input 1L3

(1) Mains input N

(2) Mains input 1L1

(3) Mains input 1L2

(4) Mains input 1L3

(5) Bypass input N

(6) Bypass input 2L1

(7) Bypass input 2L2

(8) Bypass input 2L3

Figure 3-59 Connecting AC input power cables to the UPS5000-A-80 kVA

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(1) Output N

(2) Output U

(3) Output V

(4) Output W

The neutral terminals of the UPS5000-A-80 kVA are near the interior of the cabinet. It is recommended to connect the neutral cable before other power cables.

----End

3.2.7.4 Connecting AC Output Power Cables

After you connect output power cables, if loads are not ready to be powered, insulate the end of the system output power cable.

Connect AC output power cables to output terminals N, U, V, and W on the UPS cabinet, as shown in Figure 3-60 and Figure 3-61.

Figure 3-60 Connecting AC output power cables to the UPS5000-A-30 kVA/40 kVA

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Figure 3-61 Connecting AC output power cables to the UPS5000-A-80 kVA

(1) Output N

(2) Output U

(3) Output V

(4) Output W

3.2.7.5 Connecting Battery Cables

The battery voltage may result in serious injury. Observe safety precautions when connecting cables.

Ensure that cables are correctly connected between battery strings and the battery switch, and between the battery switch and the UPS. Avoid inverse connections.

Connect battery cables to battery terminals +, N, and – on the UPS cabinet, as shown in

Figure 3-62 and Figure 3-63.

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Figure 3-62 Connecting battery cables to the UPS5000-A-30 kVA/40 kVA

(1) Battery input +

(2) Battery input N

(3) Battery input –

(1) Battery input +

(2) Battery input N

(3) Battery input –

Figure 3-63 Connecting battery cables to the UPS5000-A-80 kVA

A neutral wire is routed from the middle of the positive and negative battery strings.

Figure 3-64 shows a neutral wire routed from the middle of the two battery strings consisting

of 40 batteries, half positive and half negative.

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Figure 3-64 Neutral wire

3.2.8 Remote EPO



Huawei does not provide the EPO switch or cable. Prepare them by yourself. The recommended cable is 22 AWG.



Equip the EPO switch with a protective cover to prevent misoperations, and cover the cable with protective tubing.



Triggering EPO will shut down the rectifier, inverter, charger, and static bypass, but does not disconnect the UPS mains input. To power off the UPS completely, turn off the front-end input switch when you trigger EPO.

Connect the EPO switch to specified dry contacts on the UPS. Figure 3-65 uses the UPS5000-A-30 kVA/40 kVA UPS as an example.

By default, the EPO switch is NO. When you turn on the EPO switch, EPO is triggered.

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Figure 3-65 EPO NO status

3.2.9 Connecting Communications Cables

Procedure

Step 1 Connect the external network management device to the RS485 port. Step 2 Connect the network port on a PC to the FE port.

----End

3.3 Installing a Parallel System

3.3.1 Connecting Power Cables

Procedure

Step 1 Ground each UPS. Step 2 Connect input power cables to each UPS. Step 3 Connect output power cables to each UPS. Step 4 Connect battery cables to each UPS. Step 5 Select a parallel connection method to connect cables to the parallel system based on site

configurations.

Figure 3-66, Figure 3-67 and Figure 3-68 show the typical conceptual diagram and cable

connections for a 1+1 parallel system.

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Figure 3-66 Conceptual diagram of a 1+1 parallel system

(1) Mains input power cable

(2) Bypass input power cable

(3) Battery cable

(4) Output power cable

Figure 3-67 Cable connections for a UPS5000-A-30 kVA/40 kVA 1+1 parallel system

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Figure 3-68 Cable connections for a UPS5000-A-80 kVA 1+1 parallel system

(1) Mains input power cable

(2) Bypass input power cable

(3) Battery cable

(4) Output power cable



To clearly and simply show cable connections, this document uses "the number of oblique lines" to indicate the number of power cables of the same type.



Do not configure circuit breakers for the mains and bypass input N wires and output N wire.



Connect power cables according to port silk screen.

The specifications of power cables on each UPS should be the same to achieve current equalization in bypass mode. The power cables include bypass input power cables and UPS output power cables.

Figure 3-69, Figure 3-70, and Figure 3-71 show the conceptual diagram and cable connections

for a bus system consisting of two UPS systems respectively.

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Figure 3-69 Conceptual diagram of a dual-bus system

(1) Mains input power

(2) Bypass input power

(3) Battery

(4) Output power

Figure 3-70 Cable connections for a UPS5000-A-30 kVA/40 kVA dual-bus system