Huawei UPS5000 User manual

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
Issue
05
Date
2017-04-28
HUAWEI TECHNOLOGIES CO., LTD.

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Copyright © Huawei Technologies Co., Ltd.
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Copyright © Huawei Technologies Co., Ltd. 2017. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees or
representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website:
http://e.huawei.com

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
About This Document
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About This Document
Purpose
This document describes the backfeed protection card in terms of its overview, installation,
and software settings.
Intended Audience
This document is intended for:
Sales engineer
Technical support engineer
System engineer
Hardware installation engineer
Commissioning engineer
Data configuration engineer
Maintenance engineer
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol
Description
Indicates an imminently hazardous situation which, if not
avoided, will result in 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.
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

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
About This Document
Issue 05 (2017-04-28)
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Symbol
Description
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 05 (2017-04-28)
This is the fifth release, which updated the section "MDU Settings".
Issue 04 (2017-01-04)
This is the fourth release, which optimized description.
Issue 03 (2016-08-10)
This is the third release, which optimized description, updated the snapshots of the monitoring
system, and added the section of parts replacement.
Issue 02 (2013-12-20)
This is the second release, which optimized the document structure and some language
expressions.
Issue 01 (2013-06-15)
This is the first release.

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
Contents
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Contents
About This Document.................................................................................................................... ii
1 Safety Precautions.........................................................................................................................1
2 Product Overview .........................................................................................................................2
3 Product Installation ......................................................................................................................3
3.1 Unpacking and Checking..............................................................................................................................................3
3.2 Tools .............................................................................................................................................................................3
3.3 Installation ....................................................................................................................................................................4
3.3.1 Cable Connection and Routing Rules........................................................................................................................4
3.3.2 Installation Procedure ................................................................................................................................................6
4 MDU Settings ................................................................................................................................7
5 Parts Replacement.........................................................................................................................9
A Acronyms and Abbreviation....................................................................................................10

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
1 Safety Precautions
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1
1 Safety Precautions
Only professional technical personnel designated by Huawei are allowed to install and
operate the product.
Carefully read this document before operating the product. Keep this document for
future use.
To avoid damage, move the product gently.
Before installing the product, get tools insulated, and take off metal articles such as
watches and rings.

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
2 Product Overview
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2 Product Overview
When a backfeed occurs in normal or bypass mode, the backfeed protection card sends alarm
signals to trip the circuit breaker (provided by the customer). Table 2-1 lists backfeed
protection card configurations.
Table 2-1 Backfeed protection card configurations
Item
Exterior
Quantity (PCS)
Backfeed
protection card
1
4-pin terminal
block
3

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
3 Product Installation
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3 Product Installation
3.1 Unpacking and Checking
After you receive the product, unpack the case and check as follows:
Visually inspect the appearance for shipping damage. If any damage is founded, notify
the carrier immediately.
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 local Huawei office
immediately.
3.2 Tools
Table 3-1 lists the tools for installing the backfeed protection card.
Table 3-1 Tools
Tool
Picture
Function
Phillips
screwdriver (PH2
x 150 mm, PH3 x
250 mm)
Tightens screws.
Insulation gloves
Prevents electric shocks.
Protective gloves
Protects hands.

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
3 Product Installation
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3.3 Installation
The backfeed protection card supports hot swap. You can install it when the UPS is running,
but you must wear insulation gloves.
3.3.1 Cable Connection and Routing Rules
The backfeed protection card uses relay contact signals and it can connect to any power signal
with a voltage of 240 VAC or less and a current of 4 A or less.
Figure 3-1 shows the front view of a backfeed protection card.
Figure 3-1 Front view ofa backfeed protection card
Figure 3-2 shows the ports on the backfeed protection card, and Table 3-2 describes the ports.
Figure 3-2 Portson the backfeed protection card
Table 3-2 Port description
Port Position
Silk Screen
Description
MFP (mains
feedback
protection)
MFP_NO
The MFP ports are the signal ports for the mains
backfeed protection. NO and COM are normally
open contacts. NC and COM are normally closed
contacts. When a backfeed occurs, the normally
open contacts are closed and the normally closed
contacts are open.
MFP_COM
MFP_NC

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
3 Product Installation
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Port Position
Silk Screen
Description
BFP (bypass
feedback
protection)
BFP_NO
The BFP ports are the signal ports for the bypass
backfeed protection. NO and COM are normally
open contacts. NC and COM are normally closed
contacts. When a backfeed occurs, the normally
open contacts are closed and the normally closed
contacts are open.
BFP_COM
BFP_NC
RSV
(reserved)
RSV_NO
Reserved.
RSV_COM
RSV_NC
Figure 3-3 shows cable connections between the backfeed protection card and shunt release.
Figure 3-3 Cable connections between the backfeed protection card and shunt release
(1) Shunt release
(2) 6 A fuses
The backfeed protection card needs to be powered by the UPS output or a more reliable third-party
power to ensure that the backfeed protection card can isolate faults if backfeed faults occur in battery
mode.

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
3 Product Installation
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3.3.2 Installation Procedure
Step 1 Remove the cover from the optional card subrack. Figure 3-4 shows the detailed position.
Figure 3-4 Installation position
Step 2 Insert the backfeed protection card gently into the slot in a hot swap manner.
Step 3 Close the ejector lever, and tighten the screws.
Step 4 Insert the MFP and BFP cable terminals into the backfeed protection card.
----End

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
4 MDU Settings
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4 MDU Settings
If MUE06A connection is set to Enable and communication between the backfeed protection
card and the UPS fails, a Dry contact board fault alarm will be triggered. The following
describes how to enable the alarm. You can set the parameters either on the LCD or web user
interface (WebUI).
LCD
Step 1 Choose System Info > Settings > Dry Contacts.
If you have not logged in, enter a user name and password (the preset passwords for admin and operator
on the LCD are both 000001), and tap on the login screen displayed.
Step 2 On the Dry Contacts screen, set MUE06A connection to Enable, as shown in Figure 4-1.
Figure 4-1 Setting parameters on the LCD
----End

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
4 MDU Settings
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WebUI
Step 1 Log in to the WebUI and choose Monitoring > Param. Settings.
The preset passwords for admin and operator on the WebUI are both Changeme.
Step 2 Under Dry Contacts, set MUE06A connection to Enable and click Submit, as shown in
Figure 4-2.
Figure 4-2 Setting parameters on the WebUI
----End

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
5 Parts Replacement
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5 Parts Replacement
When the UPS is running normally, both the signals of the MFP and BFP ports are
high-voltage signals. Before replacing the backfeed protection card, power off the backfeed
protection card.
Step 1 On the LCD, choose System Info > Settings > Dry Contacts, and set MUE06A connection
to Disable.
Step 2 Remove the screws that secure the original backfeed protection card and remove the original
card.
Step 3 Insert the new backfeed protection card into the slot in a hot swap manner, close the ejector
lever, and tighten the screws.
Step 4 Remove the MFP and BFP cable terminals from the original backfeed protection card, and
connect them to the new card.
Step 5 On the LCD, choose System Info > Settings > Dry Contacts, and set MUE06A connection
to Enable.
----End

UPS5000 Backfeed Protection Card
User Manual (03021KQQ)
A Acronyms and Abbreviation
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A Acronyms and Abbreviation
L
LCD
liquid crystal display
U
UPS
uninterruptible power system