etp48200-c5a1 & c5a3 v300r002 user manual 02

7/23/2019 ETP48200-C5A1 & C5A3 V300R002 User Manual 02

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ETP48200-C5A1 & C5A3V300R002

User Manual

Issue 02

Date 2013-12-28

HUAWEI TECHNOLOGIES CO., LTD.


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Issue 02 (2013-12-28)Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.i

Copyright Huawei Technologies Co., Ltd. 2013. All rights reserved.

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

written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

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

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

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations 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://www.huawei.com

Email: [email protected]
http://www.huawei.com/http://www.huawei.com/mailto:[email protected]:[email protected]:[email protected]://www.huawei.com/


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User Manual About This Document

Issue 02 (2013-12-28) Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.

ii

About This Document

PurposeThis document describes the DC power system in terms of product overview, components,

installation, commissioning, and maintenance. This document also describes operations for

the site monitoring unit (SMU) and rectifiers.

The figures provided in this document are for reference only.

Intended AudienceThis document is intended for:

Sales engineers

Technical support engineers

Maintenance engineers

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

Symbol Description

Indicates an imminently hazardous situation which, if not avoided,

will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,

could result in death or serious injury.


may result in minor or moderate injury.


could result in equipment damage, data loss, performancedeterioration, 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.


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Change HistoryChanges between document issues are cumulative. The latest document issue contains all the

changes made in earlier issues.

Issue 02 (2013-12-28)

Updated section 4.7 Securing Signal Cables, and 4.10Installing AC Input Power Cables

Added section 4.1.2 Installation Space.

Issue 01 (2013-07-02)

This issue is the first official release.


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User Manual Contents



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Contents

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

1 Overview ......................................................................................................................................... 1

1.1 Introduction .................................................................................................................................................................. 1

1.2 Model Number Description ................................................................................................ .......................................... 1

1.3 System Features ................................................................................................................. ........................................... 1

1.4 Working Principles........................................................................................................................................................ 2

1.5 Configurations .............................................................................................................................................................. 3

2 Components ................................................................................................................................... 4

2.1 Appearance ................................................................................................................................................................... 4

2.2 PDU .............................................................................................................................................................................. 5

2.3 Rectifier ........................................................................................................................................................................ 6

2.4 SMU02B .............................................................. ................................................................. ........................................ 8

2.5 UIM ............................................................................................................................................................................ 12

3 Safety ............................................................................................................................................. 16

3.1 Health and Safety ............................................................ .............................................................. .............................. 16

3.1.1 Overview ................................................................................................................................................................. 16

3.1.2 Electrical Safety ........................................................... .............................................................. .............................. 18

3.1.3 Inflammable Environment ....................................................................................................................................... 19

3.1.4 Mechanical Safety ................................................................................................................................................... 19

3.1.5 Bundling Signal Cables ........................................................................................................................................... 20

3.2 Equipment Safety ............................................................ .............................................................. .............................. 20

3.2.1 Electricity Safety ..................................................................................................................................................... 20

3.2.2 Electrostatic Discharge ............................................................................................................................................ 21

3.2.3 Laying Out Cables ....................................................... .............................................................. .............................. 21

3.2.4 Rectifier ................................................................................................................................................................... 21

4 Installation.................................................................................................................................... 22

4.1 Installation Preparations ............................................................................................................................................. 22

4.1.1 Tools ........................................................................................................................................................................ 22

4.1.2 Installation Space ......................................................... .............................................................. .............................. 23

4.1.3 Requirements for Cable Routing ................................................................. ............................................................ 23

4.1.4 Unpacking and Acceptance ............................................................... ............................................................... ........ 23


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4.2 Installing a Subrack .................................................................................................................................................... 24

4.3 Installing Components ................................................................................................................................................ 25

4.3.1 Installing a Rectifier ................................................................................................................................................ 25

4.4 Removing Epoxy Boards .............................................................................................................. .............................. 25

4.5 Installing Ground Cables ............................................................................................................................................ 26

4.6 (Optional) Installing Dry Contact Signal Cables ................................................................................................ ........ 28

4.7 Securing Signal Cables .............................................................. .............................................................. ................... 29

4.7.1 Securing Signal Cables Using Cable Clips ............................................................. ................................................. 29

4.7.2 Securing Signal Cables Using Cable Ties ............................................................... ................................................. 30

4.8 Installing the Communications Cables ................................................................... .................................................... 30

4.8.1 WebUI Management ............................................................... .............................................................. ................... 30

4.8.2 NetEco Management................................................................................................................................................ 31

4.8.3 Third-Party NMS Management (over SNMP) ...................................................................................... ................... 32

4.8.4 Connecting to Huawei BBU (over Dry Contacts, M2000 Management) .......................... ...................................... 33

4.9 Installing DC Output Power Cables ................................................................ ............................................................ 35

4.10 Installing Battery Cables .......................................................... .............................................................. ................... 37

4.11 Installing AC Input Power Cables ................................................................. ............................................................ 40

4.11.1 Installing AC Input Power Cables for the ETP48200-C5A1 ................................................... .............................. 41

4.11.2 Installing AC Input Power Cables for the ETP48200-C5A3 ................................................... .............................. 42

5 Verifying the Installation .......................................................................................................... 45

5.1 Checking Hardware Installation ................................................................................................................................. 45

5.2 Checking Electrical Connections ............................................................................................................. ................... 45

5.3 Checking Cable Installation ..................................................................................................................... ................... 45

6 Commissioning............................................................................................................................ 46

6.1 Connecting the AC Power........................................................................................................................................... 46

6.2 Setting the Display Language .............................................................. ............................................................... ........ 46

6.3 Setting the Date and Time .......................................................... .............................................................. ................... 46

6.4 Setting the AC Input System ................................................................ ............................................................... ........ 47

6.5 Setting Battery Parameters ......................................................... .............................................................. ................... 47

6.6 (Optional) Setting Sensor Parameters ............................................................. ............................................................ 48

6.7 (Optional) Setting the Hibernation Parameter ............................................................................................................ 49

6.8 Setting Communications Parameters ................................................................................. ......................................... 49

6.8.1 Setting Parameters Before Using WebUI Management ............................................................. .............................. 49

6.8.2 Setting Parameters Before Using the NetEco Management..................................................................................... 50

6.8.3 Setting Parameters Before Using the SNMP Management ........................................................ .............................. 52

6.9 Connecting the Battery Supply ............................................................................................. ...................................... 55

6.10 Follow-up Procedure ................................................................................................................................................ 56

7 Maintenance ................................................................................................................................. 57

7.1 Routine Maintenance ...................................................... .............................................................. .............................. 57

7.2 Rectifying Common Faults ........................................................ .............................................................. ................... 58

7.2.1 Mains Failure ........................................................................................................................................................... 58


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7.2.2 AC Over Volt ................................ ............................................................... ............................................................ 58

7.2.3 AC Under Volt ............................... .............................................................. ............................................................ 58

7.2.4 DC Over Volt ............................................................... .............................................................. .............................. 58

7.2.5 DC Under Volt ............................................................. .............................................................. .............................. 59

7.2.6 Batt Over Curr ......................................................................................................................................................... 59

7.2.7 Load Off................................................................................................................................................................... 60

7.2.8 Batt Off .................................................................................................................................................................... 60

7.2.9 Batt Loop Trip.......................................................................................................................................................... 60

7.2.10 Amb. Over Temp ........................................................ .............................................................. .............................. 61

7.2.11 Amb. Under Temp ...................................................... .............................................................. .............................. 61

7.2.12 Amb. Over Humi ................................................................................................................................................... 62

7.2.13 Amb. Under Humi ................................................................................................................................................. 62

7.2.14 Batt Over Temp .......................................................... .............................................................. .............................. 62

7.2.15 Batt Under Temp ........................................................ .............................................................. .............................. 63

7.2.16 Door Alarm ..................................................... .............................................................. ......................................... 63

7.2.17 Water Alarm ............................................................... .............................................................. .............................. 63

7.2.18 Smoke Alarm ............................................................. .............................................................. .............................. 64

7.2.19 Rect Fault ........................................................ ................................................................. ...................................... 64

7.2.20 Rect Protect ..................................................... .............................................................. ......................................... 64

7.2.21 Rect Comm Fault ....................................................... .............................................................. .............................. 65

7.2.22 Load Fuse Break .................................................................................................................................................... 65

7.2.23 AC SPD Alarm ........................................................... .............................................................. .............................. 65

7.2.24 DC SPD Alarm ...................................................................................................................................................... 65

7.3 Identifying Component Faults .............................................................................................. ...................................... 66

7.3.1 Identifying AC SPD Faults ...................................................................................................................................... 66

7.3.2 Identifying Circuit Breaker Faults ........................................................................................................................... 66

7.3.3 Identifying Rectifier Faults ................................................................................................................... ................... 66

7.3.4 Identifying SMU Faults ........................................................................................................................................... 66

7.4 Replacing Components .............................................................. .............................................................. ................... 67

7.4.1 Replacing a Rectifier ............................................................................................................................................... 67

7.4.2 Replacing an SMU ....................................................... .............................................................. .............................. 68

7.4.3 Replacing the Main Board of UIM02C.................................................................................................................... 69

7.4.4 Replacing an AC SPD ............................................................. .............................................................. ................... 71

7.4.5 Replacing a Circuit Breaker .............................................................. ............................................................... ........ 72

A Technical Specifications ........................................................................................................... 74

B Electrical Conceptual Diagram ................................................................................................ 78

C Associations Between Alarms and Dry Contacts on the UIM ........................................... 80

D Acronyms and Abbreviations.................................................................................................. 81


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1 Overview1.1 Introduction

ETP48200-C5A1 and ETP48200-C5A3 are embedded telecom power systems that supplypower to -48 V DC communications equipment with a maximum current of 200 A.

1.2 Model Number DescriptionFigure 1-1shows the model number description for the ETP48200-C5A1 and

ETP48200-C5A3.

Figure 1-1Model number description for the ETP48200-C5A1 and ETP48200-C5A3

1.3 System Features Wide voltage range of 85 V AC to 300 V AC.

Comprehensive battery management.

Network application over a fast Ethernet (FE) port and an RS485/RS232 port.

Communication with Huawei NetEco or third-party network management systems(NMSs) over protocols such as the Simple Network Management Protocol (SNMP) andHypertext Transfer Protocol Secure (HTTPS) to enable remote management and

unattended working.

Remote software upgrade.


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Liquid crystal display (LCD) for display and operations.

Web user interface (WebUI) for display and operations.

Display in multiple optional languages, such as English, Chinese, Italian, French,Spanish, Portuguese, and Russian.

Hot swapping of rectifiers and the SMU.

Rectifier power factor up to 0.99.

1.4 Working PrinciplesFigure 1-2shows the conceptual diagram. AC power enters rectifiers through the AC power

distribution unit (PDU). The rectifiers convert the AC power input into -48 V DC power

output, which is directed by the DC PDU to DC loads along different routes.

When the AC power is normal, rectifiers power DC loads and charge batteries. When the AC

power is absent, rectifiers stop working and batteries start to power loads. After the AC powerresumes, rectifiers power DC loads and charge batteries again.

The SMU monitors the operating status of each component in the power system in real time

and performs appropriate intelligent control. When detecting a fault, the SMU generates an

alarm.

Figure 1-2Conceptual diagram


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1.5 Configurations

Table 1-1describes configurations of the ETP48200-C5A1 and ETP48200-C5A3.

Table 1-1Configurations of the ETP48200-C5A1 and ETP48200-C5A3

Item ETP48200-C5A1 ETP48200-C5A3

Subrack 1 U space for installing rectifiers

4 U space for installing power distribution components

PDU AC PDU: AC input circuit breaker

DC PDU: battery low voltage disconnection (BLVD),load low voltage disconnection (LLVD), and batterybranch

Rectifier A maximum of four R4850G2s

SMU SMU02B

User interface module

(UIM)UIM02C

Surge protective device

(SPD)

AC SPD: Nominal discharge current: 30 kA, maximum

discharge current: 60 kA (8/20 s)

DC SPD: Differential mode: 10 kA; common mode: 20 kA

(8/20 s)


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2 Components2.1 Appearance

Figure 2-1shows an ETP48200-C5A1.Figure 2-2shows an ETP48200-C5A3.

Figure 2-1ETP48200-C5A1

(1) Ground screw (2) AC input circuitbreaker

(3) SMU

(4) Battery switch

(behind the cover)

(5) Space for installing

rectifiers(6) UIM

(7) Battery circuitbreakers

(8) BLVD circuit breakers (9) LLVD circuit breakers

(10) AC SPD


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Figure 2-2ETP48200-C5A3

(1) Ground screw (2) AC input circuit breaker (3) SMU

(4) Battery switch

(behind the cover)

(5) Space for installing

rectifiers(6) UIM

(7) Battery circuit

breakers(8) BLVD circuit breakers (9) LLVD circuit breakers

(10) AC SPD

Before delivery, the RTN+ busbar is short-circuited with the subrack PE terminal by default.

2.2 PDU

This section describes the appearance and features of the AC and DC PDU.

Figure 2-3andFigure 2-4show the AC and DC PDU of the ETP48200-C5A1 and

ETP48200-C5A3 respectively.Table 2-1shows the specifications of the AC and DC PDUs forthe ETP48200-C5A1 and ETP48200-C5A3.

Figure 2-3ETP48200-C5A1 PDU panel


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Figure 2-4ETP48200-C5A3 PDU panel

Table 2-1PDU specification

Item ETP48200-C5A1 ETP48200-C5A3

Input system 220/380 V AC, three-phase,

four-wire compatible with220 V AC single-phase

110 V AC dual-live wire

compatible with 220 V ACsingle-phase

AC power distribution One 3-pole 63 A circuit

breaker

One 2-pole 125 A circuit

breaker

DC power distribution BLVD: four 1-pole 16 A circuit breakers and two 1-pole

10 A circuit breakers

LLVD: one 1-pole 100 A circuit breaker, one 1-pole 63

A circuit breaker, and four 1-pole 32 A circuit breakers

Battery route Two 1-pole 125 A circuit breakers

2.3 Rectifier

Appearance

Rectifiers convert AC input into stable 48 V DC output.Figure 2-5shows a rectifier.


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Figure 2-5Rectifier

Panel

Figure 2-6shows the rectifier panel.

Figure 2-6Rectifier front panel

(1) Power indicator (2) Alarm indicator (3) Fault indicator

(4) Locking latch (5) Handle

Indicators

Table 2-2describes the indicators on the rectifier panel.

Table 2-2Rectifier indicators

Indicator Color Status Description

Power

indicatorGreen Steady on The rectifier has an AC power input.

Off The rectifier has no AC power input.


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Indicator Color Status Description

The rectifier is faulty.

Blinking at

0.5 Hz

The rectifier is being queried.

Blinking at 4

HzThe rectifier is loading an application program.

Alarm

indicatorYellow Off No alarm is generated.

Steady on The rectifier generates an alarm for power limiting

due to ambient overtemperature.

The rectifier generates an alarm for shutdown dueto ambient overtemperature or undertemperature.

The rectifier protects against AC input overvoltage

or undervoltage.

The rectifier is hibernating.

Blinking at0.5 Hz

The communication between the rectifier and theSMU is interrupted.

Faultindicator

Red Off The rectifier is running properly.

Steady on The rectifier locks out due to output overvoltage.

The rectifier has no output due to an internal fault.

2.4 SMU02B

Appearance

Figure 2-7shows an SMU02B.

Figure 2-7SMU02B appearance

Panel

Figure 2-8shows an SMU02B panel.


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Figure 2-8SMU02B panel

(1) Run indicator (2) Minor alarm indicator (3) Major alarm indicator

(4) Button (5) USB port (reserved) (6) RS485/RS232 port

(7) Handle (8) Locking latch (9) FE port

(10) Liquid crystal display (LCD)

Indicator

Table 2-3describes the indicators on the SMU02B panel.

Table 2-3SMU02B indicator description

Name Color Status Description

Run indicator Green Off The SMU is faulty or has no DC input.

Blinking at 0.5

Hz

The SMU02B is running properly and

communicating with the host properly.

Blinking at 4

Hz

The SMU02B is running properly but is

not communicating with the host

properly.

Minor alarm

indicatorYellow Off The SMU does not generate any minor

alarms.

Steady on The SMU generates a minor alarm.

Major alarmindicator

Red Off No critical or major alarm is generated.

Steady on A critical or major alarm is generated.


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Button

Table 2-4describes the buttons on the SMU02B panel.

Table 2-4SMU02B button description

Button Name Description

Up Turns to the previous menu or sets parameter values.

When setting parameter values, you can hold down toquickly adjust values.

Down Turns to the next menu or sets parameter values.

When setting parameter values, you can hold down toquickly adjust values.

Back Returns to the previous menu without saving the settings.

Confirm Enters the main menu from the standby screen.

Enters a submenu from the main menu.

Saves the menu settings.

Communication Port

Table 2-5describes the communication ports on the SMU02B panel.

Table 2-5SMU02B communication port description

Communication Port

Communications Parameter

CommunicationsProtocol

Function

FE port 10/100 M

auto-adaptation

HTTPS, NetEco network

management system

(NMS), and simple

network managementprotocol (SNMP)

protocols

Connects to an

upper-level NMS

RS485/RS232

port

Baud rate: 9600

bit/s

NetEco NMS protocol Connects to upper-level

device such as BBU

Note:

All ports mentioned above support the security mechanism.


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Figure 2-9Pins in the FE port and RS485/RS232 port

Table 2-6Pin definitions for the FE port

Pin Signal Description1 TX+ Sends data.

2 TX-

3 RX+ Receives data.

6 RX-

4, 5, 7, and 8 None -

Table 2-7Pin definitions for the RS485/RS232 port

Pin Signal Description

1 TX+ Sends data over RS485.

2 TX-

4 RX+ Receives data over RS485.

5 RX-

3 RX232 Receives data over RS232.

7 TX232 Sends data over RS232.

6 PGND Connects to the ground.

8 - -


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2.5 UIM

Panel

The user interface module 02C (UIM02C) supports eight dry contact outputs, nine Booleanvalue inputs (including six universal dry contact inputs, one smoke sensor input, one watersensor input, and one door status sensor input), and four analog parameter inputs (including

one ambient temperature and humidity input, two ambient temperature inputs, and one batterytemperature input).

Figure 2-10shows the UIM02C panel.

Figure 2-10UIM02C panel

Port

Table 2-8UIM02C ports

Port Type Silk Screen Description

Sensor port TEM-HUM Ambient temperature and humidity sensor

WATER Water sensor

TEMP1 Ambient temperature sensor 1

TEMP2 Ambient temperature sensor 2

GATE Door status sensor

SMOKE Smoke sensor

BTEMP Battery temperature sensor

Dry contact input DIN1 NOTE

For the associations between the dry contact inputports and alarms, see the appendix.DIN2

DIN3

DIN4

DIN5

DIN6

Dry contact output ALM1 NOTE

For the associations between the dry contact output

ALM2


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Port Type Silk Screen Description

ALM3ports and alarms, see the appendix.

ALM4

ALM5

ALM6

ALM7

ALM8

Communications

portCOM RS485 port

Communication Port

Table 2-9COM communication port description

Communication Port

Communications Parameter

CommunicationsProtocol

Function

COM port Baud rate: 9600

bit/s

M/S and Modbus

protocol

Connects to lower-level

devices such as the Batt.

cell detector, DC AirConditioner

Note:

The port mentioned above supports the security mechanism.

Figure 2-11Pins in the COM port

Table 2-10Pin definitions for the COM port


1 RX+ Receives data over RS485.


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2 RX-

4 TX+ Sends data over RS485.

5 TX-

6 PGND Connects to the ground.

3, 7, 8 None -

Pins

Figure 2-12shows the pin numbers of the sensor ports.Table 2-11defines the pins.

Figure 2-12UIM02C pin numbers

Table 2-11UIM02C pin definitions

Silkscreen No. Pin Definitions

TEM-HUM 1 12 V

2 ENV_TEMP

3 12 V

4 ENV_HUM

WATER 1 12 V

2 WATER

3 GND

4 Not defined


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Silkscreen No. Pin Definitions

TEMP1 1 GND

2 TEMP1

TEMP2 1 GND

2 TEMP2

GATE 1 GATE+

2 GATE-

SMOKE 1 SMOKE

2 12 V

BTEMP 1 GND

2 BTEMP1


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3 Safety3.1 Health and Safety

3.1.1 Overview

Introduction

This section describes the safety precautions you must take before installing or maintaining

Huawei equipment.

To ensure safety of humans and the equipment, pay attention to the safety symbols on theequipment and all the safety instructions in this document.

The "NOTICE", "CAUTION", "WARNING", and "DANGER" statements in this

document do not represent all the safety instructions. They are only supplements to thesafety instructions.

Installation and maintenance personnel must understand basic safety precautions to avoidhazards.

When operating Huawei equipment, in addition to following the general precautions in

this document, follow the specific safety instructions given by Huawei.

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

This product should be used in the environment that meets design specifications.

Otherwise, the product may be damaged, and the resulting product exceptions or

component damage are beyond the warranty scope.

Local Safety Regulations

When operating Huawei equipment, you must follow the local laws and regulations. The

safety instructions in this document are only supplements to the local laws and regulations.

General Requirements

To minimize risk of personal injury and damage to equipment, read and follow all the

precautions in this document before performing any installation or maintenance.

Ensure that the instructions provided in this document are followed completely. This sectionalso provides guidelines for selecting the measuring and testing devices.


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Installation The device (or system) must be installed in an access-controlled location.

The device can be mounted only on concrete or non-combustible surfaces.

The device must be fixed securely on the floor or to other immovable objects such aswalls and mounting racks before operation.

When installing the unit, always make the ground connection first and disconnect it at

the end.

Do not block the ventilation while the device is operating. Keep a minimum distance of 5cm between the device and the wall or other objects that may block the ventilation.

Tighten the thumbscrews by using a tool after initial installation and subsequent access

to the panel.

Ground Do not damage the ground conductor or operate the device in the absence of a properly

installed ground conductor. Conduct the electrical inspection carefully.

The device (or system) must be connected permanently to the protection ground beforean operation. The cross-sectional area of the protective ground conductor must be at least10 mm

2.

Power Supply For AC-supplied models: The device applies to TN, TT, or IT power system.

For DC-supplied models: Reinforced insulation or double insulation must be provided toisolate the DC source from the AC mains supply.

For DC-supplied model: The device applies to DC power source that complies with the

Safety Extra-Low Voltage (SELV) requirements in IEC 60950-1 based safety standards. Prepared conductors are connected to the terminal block, and only the appropriate

AWG/Type of wire is secured with the lug terminals.

Human Safety Do not operate the device or cables during lightning strikes.

Remove the AC power connector when there is lightning. Do not use fixed terminals or

touch terminals or antenna connectors when there is lightning.

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits totelecommunication network voltage (TNV) circuits.

Move or lift the chassis by holding its lower edge. Do not hold the handles on certain

modules such as power supply, fans, and boards because they cannot support the weightof the device.

At least two persons are required to lift the chassis. When lifting it, keep your backstraight and move stably.

Do not wear jewelry or watches when you operate the device.

Operator Only qualified professional personnel are allowed to install, configure, operate, and

disassemble the device.

Only the personnel authenticated or authorized by Huawei are allowed to replace or

change the device of the parts of the device (including the software).


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Any fault or error that might cause safety problems must be reported immediately to asupervisor.

Only qualified personnel are allowed to remove or disable the safety facilities and to

troubleshoot and maintain the device.

3.1.2 Electrical Safety

High Voltage

The high voltage power supply provides power for the device operation. Direct or indirectcontact (through damp objects) with high voltage and AC mains supply may result in serious

injuries.

During the installation of the AC power supply facility, follow the local safetyregulations. The personnel who install the AC facility must be qualified to perform highvoltage and AC operations.

Do not wear conductive articles, such as watches, hand chains, bracelets, and rings

during the operation.

When water is found in the rack or the rack is damp, switch off the power supplyimmediately.

When the operation is performed in a damp environment, make sure that the device is

dry.

Non-standard and improper high voltage operations may result in fire and electric shock.

Therefore, you must abide by the local rules and regulations when bridging and wiring AC

cables. Only qualified personnel are allowed to perform high voltage and AC operations.

Before powering on a device, ground the device. Otherwise, personal injury or device damage

may be caused by high leakage current.

Tools


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Dedicated tools must be used during high voltage and AC operations. Avoid using ordinary

tools.

High Electrical Leakage

Ground the device before powering it on. Otherwise, personal injury or device damage maybe caused by high leakage current.

If the "high electrical leakage" tag is present on the power terminal of the device, you mustground the device before powering it on.

3.1.3 Inflammable Environment

Operating the electrical device in an inflammable environment can be fatal.

Do not place the device in an environment that has inflammable and explosive air or gas. Donot perform any operation in this environment.

3.1.4 Mechanical Safety

Drilling Holes

Do not drill the cabinet at will. Drilling holes without complying with the requirements affectsthe electromagnetic shielding performance of the cabinet and damages the cables inside the

cabinet. In addition, if the scraps caused by drilling enter the cabinet, the printed circuit

boards (PCBs) may be short circuited.

Before you drill a hole in the cabinet, wear insulated gloves and remove the internal

cables from the cabinet.

Wear an eye protector when drilling holes. This is to prevent your eyes from being

injured by the splashing metal scraps.

Ensure that the scraps caused by drilling do not enter the cabinet.

Drilling holes without complying with the requirements affects the electromagnetic

shielding performance of the cabinet.


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After drilling, clean the metal scraps immediately.

Sharp Objects

Before you hold or carry a device, wear protective gloves to avoid getting injured by sharp

edges of the device.

Handling Fans

When handling fans, note the following:

When replacing a component, place the component, screws, and tools in a safe place.

Otherwise, if any of them fall into the operating fans, the fans may be damaged.

When replacing a component near fans, do not insert your fingers or boards into theoperating fans until the fans are switched off and stops running.

Lifting Heavy Objects

When heavy objects are being lifted, do not stand or walk under the cantilever or the liftedobject.

3.1.5 Bundling Signal Cables

Do not bundle signal cables with high current cables or high voltage cables.

Maintain a minimum space of 150 mm between adjacent ties.

3.2 Equipment Safety

3.2.1 Electricity Safety

High Electrical Leakage


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If the "high electrical leakage" tag is present on the power terminal of the device, you must

ground the device before powering it on.

3.2.2 Electrostatic Discharge

The static electricity generated by human bodies may damage the electrostatic-sensitive

components on boards, for example, the large-scale integrated (LSI) circuits.

Human body movement, friction between human bodies and clothes, friction between shoesand floors, or handling of plastic articles causes static electromagnetic fields on human bodies.

These static electromagnetic fields cannot be eliminated until the static is discharged.

To prevent electrostatic-sensitive components from being damaged by the static on humanbodies, you must wear a well-grounded electrostatic discharge (ESD) wrist strap when

touching the device or handling boards or application-specific integrated circuits (ASICs).

3.2.3 Laying Out Cables

When the temperature is very low, violent strike or vibration may damage the cable sheathing.

To ensure safety, comply with the following requirements:

Cables can be laid or installed only when the temperature is higher than 0C.

Before laying out cables which have been stored in a temperature lower than 0C, movethe cables to an environment of the ambient temperature and store them at the ambient

temperature for at least 24 hours.

Handle cables with caution, especially at a low temperature. Do not drop the cables

directly from the vehicle.

3.2.4 Rectifier

When a rectifier is running, the temperature around the air exhaust vent at the rear ishigh. Do not touch the vent or cover the vent with cables or other objects.

To prevent electric shocks, do not put your hands into rectifier slots.


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4 Installation4.1 Installation Preparations

4.1.1 Tools

Figure 4-1lists the tools required for the installation.

Figure 4-1Installation tools


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4.1.2 Installation Space

Figure 4-2shows the required installation space.

Figure 4-2Installation space

4.1.3 Requirements for Cable Routing

The bending semidiameter of power cables and ground cables should be greater than or

equal to three times the diameter of the power cables and ground cables respectively.

The bending semidiameter of signal cables should be greater than or equal to five timesthe diameter of the signal cables.

Cables of the same type should be bound together. Cables of different types should keepa minimum distance of 30 mm from each other to avoid tangles.

Cables that are bound together should be close to each other, neat, and free of damage.

The protection ground cables must not be bound to or tangled with the signal cables. An

appropriate distance should be left between them to minimize interruption.

AC power cables, DC power cables, signal cables, and communications cables must bebound separately.

Power cables must be routed straightly. No joint or weld can be found in a power cable.

In case of insufficient cable length, use a longer cable.

4.1.4 Unpacking and Acceptance

Procedure

Step 1 Check whether packing cases are intact. If a packing case is severely damaged or wet, identifythe cause and report to the local Huawei office.

Step 2 Unpack the case.

Step 3 Check the quantity of components against the packing lists attached to the packing cases. Ifthe quantity differs from that specified on the packing lists, identify the cause and report to the

local Huawei office.


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----End

4.2 Installing a Subrack

Procedure

Step 1 Install floating nuts.

Figure 4-3Installing a floating nut

Step 2 Install the subrack to a 19-inch rack.

Figure 4-4Installing a subrack

----End


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4.3 Installing Components

4.3.1 Installing a Rectifier

Prerequisites Rectifiers are found intact after unpacking and check. In case of any discrepancy, contact

your local Huawei office.

The filler panels on the slot for installing the rectifiers have been removed from the

cabinet.

Procedure

Step 1 Push the locking latch towards the left.

Step 2 Draw the handle downwards.

Step 3 Gently push a rectifier into its slot along the guide rail.

Step 4 Push the handle upwards.

Step 5 Push the locking latch towards the right to secure the handle.

Figure 4-5Installing a rectifier

----End

4.4 Removing Epoxy BoardsSelect any of the following ways to route cables based on the cable bundle cross-sectional

area:

If the total cross-sectional area of all bundles of cables is less than the area of an epoxy

board, cut a hole in the board or reduce the board size for cable routing.

If the total cross-sectional area of all bundles of cables is greater than or equal to the areaof an epoxy board, remove the board for cable routing.

If the total cross-sectional area of all bundles of cables is greater than the total area of all

epoxy boards, remove the entire top cover for cable routing.


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Figure 4-6Epoxy board

(1) Epoxy board

4.5 Installing Ground Cables

Figure 4-7andFigure 4-8show how to install the ground cables for the ETP48200-C5A1 andETP48200-C5A3 respectively.


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Figure 4-7Installing the ground cable for the ETP48200-C5A1

(1) Ground bar


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Figure 4-8Installing the ground cable for the ETP48200-C5A3

(1) Ground bar

4.6 (Optional) Installing Dry Contact Signal Cables

Procedure

Step 1 Press the contact plate using a flat-head screwdriver to flip the metal spring inside each drycontact.

Step 2 Connect the signal cables to the corresponding dry contacts.

Step 3 Put away the flat-head screwdriver and check that the signal cables are securely connected.

Figure 4-9Installing a dry contact signal cable

(1) Contact plate (2) Dry contact


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----End

4.7 Securing Signal Cables

Secure signal cables using cable clips or ties.

4.7.1 Securing Signal Cables Using Cable Clips

Procedure

Step 1 Insert the two cable clips into the related holes in the UIM02C panel, as shown inFigure 4-10.

Figure 4-10Installing cable clips

(1) Cable clip

Step 2 Get the signal cables to be connected to the UIM02C stuck in the cable clips, as shown inFigure 4-11.

Figure 4-11Securing signal cables

----End


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4.7.2 Securing Signal Cables Using Cable Ties

Procedure

Step 1 Route two cable ties into the corresponding holes in the UIM02C panel, as shown inFigure4-12.

Figure 4-12Installing cable ties

(1) Cable tie

Step 2 Bind UIM02C signal cables using the cable ties.

----End

4.8 Installing the Communications Cables4.8.1 WebUI Management

Procedure

Step 1 Connect the FE port on the SMU by using a network cable, as shown inFigure 4-13.

Figure 4-13Connecting a communications cable (for WebUI management)

(1) FE port

----End


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4.8.2 NetEco Management

Networking Mode 1: over FE


Figure 4-14Connecting a communications cable (over FE)

(1) FE port

----End

Networking Mode 2: over an RS485 Port

Step 1 Delete the default power configuration from the BBU.

If you use this power system to power the BBU, delete the default power configuration

from the BBU after powering on the BBU, and then connect communications cables.

Before connecting network cables, delete default power configuration from the BBU.

Otherwise, all parameter settings for the site will change.

Step 2 Connect one end of the network cable to the RS485/RS232 port on the SMU.

Step 3 Connect the other end to the Mon1 port on Huawei baseband unit (BBU), as shown inFigure

4-15.


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Figure 4-15Connecting a communications cable (over the RS485 port)

(1) RS485/RS232 port (2) Mon1 port

----End

4.8.3 Third-Party NMS Management (over SNMP)Procedure


Figure 4-16Connecting a communications cable (over SNMP)

(1) FE port

----End


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4.8.4 Connecting to Huawei BBU (over Dry Contacts, M2000Management)

ProcedureStep 1 Alarm signals are sent over dry contacts. Connect the dry contact signal cable to the

EXT-ALM port on the BBU, as shown inFigure 4-17.


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Figure 4-17Connecting the UIM02C and the BBU

(1) BBU (2) EXT-ALM1 port (3) EXT-ALM0 port


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In the SRAN site based on the BSC6900, the external alarm port number scope of the two slots is 0

to 7.

In the non-SRAN site based on the BSC6900, the scope is 0 to 15.

In the non-SRAN site based on the BSC6000, the scope is 1 to 16.

----End

4.9 Installing DC Output Power Cables

Prerequisites

Switch off all circuit breakers before installing DC power cables.

Procedure

Step 1 Open the front panel of the PDU.

Step 2 Route DC output power cables through the epoxy board on the top of the subrack.

Step 3 Connect the negative DC output cable to the DC output circuit breaker based on the actualloads.

Step 4 Connect the positive DC output cable to the corresponding screw on the RTN+ busbar.

Install DC output power cables for the ETP48200-C5A1, as shown inFigure 4-18.


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Figure 4-18Installing DC output power cables for the ETP48200-C5A1

(1) Load

Install DC output power cables for the ETP48200-C5A3, as shown inFigure 4-19.


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Figure 4-19Installing DC output power cables for the ETP48200-C5A3

(1) Load

----End

4.10 Installing Battery Cables

Prerequisites


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Put on an insulation covering when using a screwdriver and tools alike. Otherwise, the

batteries would be burnt out and cause damage to human body. Switch off battery circuit breakers before installing batteries.

During battery installation, never short-circuit or reversely connect positive and negative

battery terminals. Connect the negative battery cable before the positive battery cable.

Secure battery cables to a torque specified in battery documentation. Loose connectionswill result in excessive voltage drop or cause batteries to burn out when the current is

large.

Procedure

Step 1 Connect negative battery cables to the battery circuit breakers.

Step 2 Connect positive battery cables to the RTN+ busbar.

When only one battery string is required, connect it to the place numbered 1, as shown in

Figure 4-20andFigure 4-21.Otherwise, the battery current cannot be measured.

Figure 4-20shows how to install battery cables for the ETP48200-C5A1.


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Figure 4-20Installing battery cables for the ETP48200-C5A1

(1) Battery string 2 (2) Battery string 1

Figure 4-21shows how to install battery cables for the ETP48200-C5A3.


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Figure 4-21Installing battery cables for the ETP48200-C5A3

(1) Battery string 2 (2) Battery string 1

----End

4.11 Installing AC Input Power Cables

Switch off all circuit breakers before installing AC power cables.

The ETP48200-C5A1 supports the 220/380 V AC three-phase, four-wire and 220 V AC

single-phase input systems. The ETP48200-C5A3 supports the 220 V AC single-phase and

110 V AC dual-live wire input systems. Install AC input power cables based on siterequirements.


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4.11.1 Installing AC Input Power Cables for the ETP48200-C5A1

Installing 220/380 V AC Three-Phase, Four-Wire Input Power Cables

Step 1 Route 220/380 V AC three-phase, four-wire input power cables through the epoxy board onthe top of the subrack.

Step 2 Secure the power cables to corresponding AC input circuit breakers and wiring terminal, asshown inFigure 4-22.

Figure 4-22Installing 220/380 V AC three-phase, four-wire input power cables

(1) ACDB

----End

Installing 220 V AC Single-Phase Input Power Cables

Step 1 Take out a short-circuit copper bar from the fitting bag.

If the short-circuit copper bar, insulation cover, and insulation spacer in the fitting bag are notfactory-installed, secure the insulation spacer to the short-circuit copper bar.

If the short-circuit copper bar, insulation cover, and insulation spacer in the fitting bag arefactory-installed, remove the insulation cover.

Step 2 Insert the short-circuit copper bar into the AC input circuit breaker.

Step 3 Route 220 V AC single-phase input power cables through the epoxy board on the top of the

subrack.


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Step 4 Secure the live wire to the short-circuit copper bar, and neutral wire to the N wiring terminal.

Figure 4-23Installing 220 V AC single-phase input power cables

(1) ACDB

Step 5 Secure the insulation cover to the short-circuit copper bar.

----End

4.11.2 Installing AC Input Power Cables for the ETP48200-C5A3

Installing 110 V AC Dual-Live-Wire Input Power Cables

Step 1 Route 110 V AC dual-live wire input power cables through the epoxy board on the top of thesubrack.

Step 2 Secure the power cables to corresponding AC input circuit breakers, as shown inFigure 4-24.


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Figure 4-24Installing 110 V AC dual-live-wire input power cables

(1) ACDB

----End

Installing 220 V AC Single-Phase Input Power Cables

Step 1 Route 220 V AC single-phase input power cables through the epoxy board on the top of thesubrack.

Step 2 Secure the power cables to corresponding AC input circuit breakers, as shown inFigure 4-25.


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Figure 4-25Installing 220 V AC single-phase input power cables

(1) ACDB

----End


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5 Verifying the Installation5.1 Checking Hardware Installation

Check that all screws, especially those used for electrical connections, are secured.

Check that flat washers and spring washers are installed properly.

Check that rectifiers are completely inserted into their respective slots and properlylocked.

5.2 Checking Electrical Connections Check that all circuit breakers are switched off.

Check that flat washers and spring washers are securely installed for all the OT terminals

and that all the OT terminals are intact and properly connected.

Check that batteries are correctly installed and that battery cables are correctly connectedwithout being short circuited.

Check that input and output power cables and ground cables are correctly connectedwithout being short circuited.

5.3 Checking Cable Installation Check that all cables are securely connected.

Check that all cables are arranged neatly and bound properly to their nearest cable tieswithout being distorted or excessively bent.

Check that cable labels are properly and securely attached in the same direction.


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6 Commissioning6.1 Connecting the AC Power

Procedure

Step 1 Measure the input voltage on the AC input circuit breaker. The value should range from 85 VAC to 300 V AC.

Step 2 Switch on the AC input circuit breaker and measure the output voltage on the AC input circuitbreaker. The value should range from 85 V AC to 300 V AC.

Step 3 Check that the indicators on the rectifiers are steady on.

Step 4 Measure the voltage between the -48 V busbar and the RTN+ busbar. The value should rangefrom -42 V DC to -58 V DC.

----End

6.2 Setting the Display Language

After powering on the SMU, select English by pressing or on the LCD, and then

press to enter the standby screen.

If you select an undesired language, remove and then insert the SMU. Select a language again after the

SMU restarts.

6.3 Setting the Date and Time

The LCD screen becomes dark if no button is pressed within 30 seconds.

You need to log in again if no button is pressed within 1 minute.

The preset user name is adminand the preset password is 000001.

Set the date and time as required.


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Table 6-1Setting the date and time

Main Menu Second-LevelMenu

Third-LevelMenu

Default Value Setting Value

Setting Wizard Date and TimeNOTE

The date andtime vary

according to

time zones. Setthe time zone,date, and timebased on thelocal situation.

Data and time - Set to the localdate and time.

Time zone UTC +08:00

Beijing

Set to the local

time zone.

NTP Enable No Yes/No

NOTE

Set the

parameter toYesif you needto synchronizethe SMU time

and the sitenetwork servertime.

6.4 Setting the AC Input SystemSet the AC input system (Three Phases or Single Phase) based on site requirements.

Table 6-2Setting the AC input system

MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

DefaultValue

SettingValue

Parameters

Settings

Power

System

Basic

ParametersAC Type Three

Phases

Set to the

local power

supply inputsystem.

6.5 Setting Battery ParametersSet Battery 1 Connected, Battery 1 Connected, Rated Capacity, Installation Timeas

required.


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Table 6-3Setting battery parameters

MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

DefaultValue

SettingValue

Parameters

SettingsBattery Basic

Parameters

Battery1

ConnectedYes IfNbattery

strings areconnected,

set Battery

1

Connectedto Battery N

Connectedto Yes, and

set the otherparameters

to No.

Battery2

ConnectedYes

Rated

Capacity150 Ah Rated

capacity of

the batteriesin a batterystring.

NOTE

The batteries

connected toone circuit

breaker orfuse are

called abatterystring.

OtherParameters

InstallationTime

- Set thisparameter tothe current

date.

6.6 (Optional) Setting Sensor ParametersSet sensor parameters based on site requirements.

Table 6-4Setting sensor parameters

MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

DefaultValue

SettingValue

ParametersSettings

PowerSystem

SensorConfig. Para

Door sensor None Set to Yesor

Nonebased

on siteWater sensor None


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MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

DefaultValue

SettingValue

Smokesensor

Nonerequirements.

AmbientTemp.Sensor

None

Ambient

Humi.Sensor

None

Batt. Temp.Sensor 1

None

Batt. Temp.Sensor 2

None

6.7 (Optional) Setting the Hibernation ParameterSet Hibernation Enableto Yesif you need to use the intelligent hibernation function of the

rectifiers.

Table 6-5Setting the hibernation parameter

Main Menu Second-LevelMenu

Third-LevelMenu

Default Value Setting Value

ParametersSettings

Energy Saving HibernationEnable

No Yes

6.8 Setting Communications Parameters6.8.1 Setting Parameters Before Using WebUI Management

Procedure

Step 1 Apply to the site or equipment room network administrator for a fixed IP address.

Step 2 Set the IP Address, Subnet Mask, and Default Gatewayon the LCD, as shown inTable6-6.


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Table 6-6IP parameters

Main MenuSecond-LevelMenu

Third-LevelMenu Default Value Setting Value

Setting Wizard NetworkParameters

IP Address 192.168.0.10 Set thisparameter basedon the addressassigned by the

networkadministrator.

Subnet Mask 255.255.255.0 Set this

parameter based

on the address

assigned by thenetwork

administrator.

Default

Gateway192.168.0.1 Set this

parameter based

on the addressassigned by thenetworkadministrator.

----End

6.8.2 Setting Parameters Before Using the NetEco Management

Networking Mode 1: over FE


Step 2 Set the IP Address, Subnet Mask, and Default Gatewayon the LCD, as shown inTable6-7.


Main Menu

Second-Level

Menu

Third-Level

Menu Default Value Setting Value

Setting Wizard Network

ParametersIP Address 192.168.0.10 Set this

parameter

according to theaddress

assigned by thenetwork

administrator.

Subnet Mask 255.255.255.0 Set thisparameter

according to theaddress


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assigned by the

network

administrator.

Default

Gateway192.168.0.1 Set this

parameter

according to the

addressassigned by the


Step 3 Set the IP Addressesand Portsfor the active and standby servers of the NetEco on the LCD,as described inTable 6-8.

Table 6-8NetEco parameters

MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

DefaultValue

SettingValue

ParametersSettings

Comm.Parameters

NetworkParameters

NetEcoPrimary IP

192.168.0.10 Set an IPaddress for

the activeNetEco

server.

NetEco

Backup IP192.168.0.10 Set an IP

address forthe standby

NetEcoserver.

NetEco Port

Number31220 Set a port for

the NetEco.

----End

Networking Mode 2: over an RS485 Port

Step 1 Check that the following parameters are set properly: Port Modeto Manual, Protocol Typeto M/S Protocol, Baud Rateto 9600, and Comm. Addressto 3.


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Table 6-9Communications parameters

MainMenu

Second-

LevelMenu

Third-

LevelMenu

Fourth-

LevelMenu

Fifth-

LevelMenu

DefaultValue

SettingValue

Parameters

Settings

Comm.

ParametersSerial Port Northbound Port

ModeManual Manual

Protocol

Type

M/S

Protocol

M/S

Protocol

M/S

ProtocolNorthbound Baud

Rate9600 9600

Comm.

Address3 3

----End

6.8.3 Setting Parameters Before Using the SNMP Management

Prerequisites

Before setting SNMP parameters, obtain the information listed inTable 6-10from the NMS.

Table 6-10Information obtained from the NMS

Information Description

SNMP version SNMP version and port number used by the SMU and NMS.

The SNMP versions include SNMPv1, SNMPv2c, and

SNMPv3.SNMP Port Number

Read Community Name If you use SNMPv1 or SNMPv2c, enter the read community

name and write community name that comply with the NMS.Otherwise, the SMU will not connect to the NMS.Write Community Name

User Name To enhance the security, you need a user name and password

for authentication if you use SNMPv3. After the authentication

succeeds, the SMU can communicate with the NMS.MD5 PasswordDES Password

Trap Target Address IP address and port number reported in the alarm trap.

Trap Port

Procedure



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Step 2 Set the IP Address, Subnet mask, and Default Gatewayon the LCD of the SMU, asdescribed inTable 6-11.




Setting Wizard Network

ParametersIP Address 192.168.0.10 Set this

parameter based

on the addressassigned by the


Subnet Mask 255.255.255.0 Set this

parameter basedon the address

assigned by thenetworkadministrator.

DefaultGateway

192.168.0.1 Set thisparameter based

on the addressassigned by the

network

administrator.

Step 3 Enter the IP address for the SMU in the address box of Internet Explorer. Log in to theWebUI on the login page shown inFigure 6-1.

The preset user name is adminand the preset password is 000001.

You can set SNMP parameters on the WebUI locally or remotely.

Figure 6-1Login page


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Step 4 On the System Settingstab page, select SNMP.

If the SNMP version is SNMPv1 or SNMPv2c, set SNMP VersiontoSNMPv1&SNMPv2cunder SNMP, and then set SNMP PortNumber, Read

Community Name, and Write Community Name, as shown inFigure 6-2.

Figure 6-2Setting SNMPv1 and SNMPv2c parameters

If the SNMP version is SNMPv3, set SNMP Versionto SNMPv3under SNMP, clickAddunder SNMPv3, and then set User Name, MD5 Password, and DES Password, as

shown inFigure 6-3.

Figure 6-3Setting SNMPv3 parameters

Step 5 Under SNMP Trap, set Trap Target Addressand Trap Port.

Step 6 Under Mib files, click Exportto export the Mib file and import it to the NMS.

If there is only one NMS, performStep 6once.


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----End

Follow-up Procedure

You can query the power system operating status, active alarms, and the names ofuser-defined dry contact inputs, and configure dry contact outputs on the network

management system (NMS) that is connected over the Simple Network Management Protocol(SNMP).

6.9 Connecting the Battery Supply

Prerequisites

To avoid damage to batteries, switch on the battery circuit breaker only after correctly setting

the battery parameters.

Procedure

Step 1 Switch off the AC input circuit breaker.

Step 2 Switch on the battery circuit breakers.

Step 3 Switch on the AC input circuit breaker.

Step 4 Set all the circuit breakers based on site requirements.

Step 5 Observe the power system for 15 minutes. During this period of time, if no alarm is generatedon the LCD of the SMU, the voltages and currents for batteries and loads are normal.


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The battery switch is in the AUTO position by default before delivery and the system is

under automatic control. Open the cover and flip the battery switch to MANUAL only when you need to power on

the battery forcibly. Remember to flip the battery back to AUTO after the commissioning.

Figure 6-4Battery switch

(1) Battery switch

----End

6.10 Follow-up Procedure

Procedure

Step 1 Reinstall the removed cover or panel (if there is).

Step 2 The paint on the cabinet exterior should be intact. If paint flakes off, repaint the area to avoidcorrosion.

Step 3 Clean and leave the site.

----End


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7 Maintenance7.1 Routine Maintenance

Maintain the power system periodically based on site requirements. The recommended

maintenance period is six months.

Table 7-1Routine maintenance checklist

MaintenanceItem

Maintenance Task

CheckWhether

CheckMethod

Repair When Measures

Electricity The AC input

voltage is

normal.

Multimeter. The AC input

voltage is

beyond thenormal range.

For details, see

7.2 Rectifying

Common Faultsand7.3Identifying

ComponentFaults.

The output

voltage isnormal.

The battery low

voltagedisconnection

(BLVD) or load

low voltagedisconnection

(LLVD) voltagedoes not fall

between -42 V

DC and -58 VDC.

Preventive

maintenance

inspection

(PMI)

The indicators

are in the

normal status.

Observing

indicators.

Alarms are

generated.

Grounding The ground

point properlyconnects to the

ground bar in

the cabinet.

Multimeter. The resistance

between theground point

and the ground

bar is greater

than 0.1 ohm.

Secure the

ground cable tothe ground

point again or

replace the

ground cable.


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ETP48200-C5A1 & C5A3

User Manual 7 Maintenance



58

7.2 Rectifying Common Faults

7.2.1 Mains Failure

Possible Causes The AC input power cable is faulty.

The AC input circuit breaker is OFF.

The mains grid is faulty.

Measures

1. Check whether the AC input cable is loose. If yes, secure the AC input cable.

2. Check whether the AC input circuit breaker is OFF. If yes, handle the back-end circuitfailure and then switch on the circuit breaker.

3. Check whether the AC input voltage is lower than 50 V AC. If yes, handle the mainsgrid fault.

7.2.2 AC Over Volt

Possible Causes The AC overvoltage alarm threshold is not set properly on the SMU.

The power grid is faulty.

Measures

1. Check whether the AC overvoltage alarm threshold is properly set. If no, adjust it to aproper value.

2. Check whether the AC input voltage exceeds the AC overvoltage alarm threshold (280 VAC by default). If yes, handle the AC input fault.

7.2.3 AC Under Volt

Possible Causes The AC undervoltage alarm threshold is not set properly on the SMU.

The power grid is faulty.

Measures

1. Check whether the AC undervoltage alarm threshold is properly set. If no, adjust it to aproper value.

2. Check whether the AC input voltage is below the AC undervoltage alarm threshold (180V AC by default). If yes, handle the AC input fault.

7.2.4 DC Over Volt

Possible Causes The DC o

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