AC Power Systems forBusiness Critical Continuity

Load Bus Sync� Extender/Adapter for Dual Bus UPSInstallation Manual120V-277VAC, 45-65Hz

i

TABLE OF CONTENTS

1.0 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22.1 Liebert NX UPS to Liebert NX UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Liebert NX UPS to Non-Liebert NX UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

FIGURESFigure 1 LBS Adapter dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 2 Horizontal installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 3 Vertical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Figure 4 Connecting a Liebert NX to a Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Figure 5 Connecting a Liebert NX to a non-NX UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

TABLESTable 1 Human interface�indicators and switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Table 2 Electrical rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Table 3 Part number description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

ii

General

1

1.0 GENERAL

Liebert�s Load Bus Sync (LBS) Extender/Adapter for Dual Bus UPS is designed to extend the LBS function, up to 150m (492 ft.) between Liebert NX series uninterruptible power system (UPS) modules of a dual bus system (DBS). The adapter also enables a Liebert NX UPS to synchronize with other UPS models.

Figure 1 LBS Adapter dimensions

Figure 2 Horizontal installation

Figure 3 Vertical installation

8.5”(216.2mm)

5.25”(133.5mm)

1.8”(45.5mm)

DY3-4ZPW

COM1COM2

SWITCH

LED1

POWER ON

DY3-4ZPWPOWER ON

SWITCH

LED1

COM2COM1

Installation

2

2.0 INSTALLATION

2.1 Liebert NX UPS to Liebert NX UPS

1. Connect the power cables of the adapter to the Phase A, Neutral and Ground output of each UPS.2. Connect the LBS cable to COM1 of each LBS Signal Adapter.3. Connect the other end of each LBS cable to X4 on the parallel board (UHW241M3) in the

NX UPS.4. Connect the communication cable (up to 492 ft. [150m]) to the COM2 interface of each LBS Signal

Adapter.5. The switch of both LBS signal adapters should be in the right position (see Figure 4).

Figure 4 Connecting a Liebert NX to a Liebert NX

! WARNINGInstallation by qualified electrical personnel only�hazardous voltage may be present at the UPS output connectors.

COM1 COM1COM2 COM2SWITCH SWITCHPower ON

LED1

Power ON

LED1

Power CableConnect to NX UPS

LBS Cable

Communication Cableup to 492 ft. (150m)

Power CableConnect to NX UPS LBS

Cable

Installation

3

2.2 Liebert NX UPS to Non-Liebert NX UPS

1. Connect the power cables of the adapter to the Phase A, Neutral and Ground Output of each UPS.2. Connect the LBS cable to COM1 of the LBS Signal Adapter connected to the Liebert NX. 3. Connect the other end of the LBS cable to X4 on the parallel board (UHW241M3) in the NX UPS.4. Connect the communication cable (up to 492 ft. [150m]) to the COM2 interface of each LBS Signal

Adapter.5. The switches of LBS signal adapters connected to the Liebert NX should be in the right position

and the switches of LBS signal adapters connected to the non-NX UPS should be in the left position (see Figure 5).

Figure 5 Connecting a Liebert NX to a non-NX UPS

! WARNINGInstallation by qualified electrical personnel only�hazardous voltage may be present at the UPS output connectors.

Table 1 Human interface�indicators and switchesItem Description

Power port Connect to Phase A, Neutral and Ground of output of UPS.LED1 (red) Power LED. It illuminates when the power is on, turns off when the power fails.

COM1 LBS Signal interface.Connect to NX series UPS unit.

COM2

RS485 interface.Connect to other Signal Adapter.Green LED: Communication Power is OK.Yellow LED: Adapter is connected to Non NX series UPS.

SWITCH Switch to left: Connect to Non-NX series UPS unit.Switch to right: Connect to NX series UPS unit.

Table 2 Electrical ratingDescription RatingVoltage 120V-277VACFrequency 45-65HZCurrent 0.2A Max

Table 3 Part number descriptionDescription Part Number150 Meter Kit NX150MLBSKIT50 Meter Kit NX050MLBSKIT

COM1 COM2 SWITCH COM1 COM2 SWITCHPower ON

LED1

Power ON

LED1

Power CableConnect to NX UPS

LBSCable

Power CableConnect to non-NX UPS

Communication Cableup to 492 ft. (150m)

Emerson Network Power. The global leader in enabling Business-Critical Continuity. EmersonNetworkPower.com

Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2005 Emerson Electric Co.

The Company Behind the Products

With over a million installations around the globe, Liebertis the world leader in computer protection systems. Sinceits founding in 1965, Liebert has developed a completerange of support and protection systems for sensitiveelectronics:

� Environmental systems�close-control air conditioning from 1 to 60 tons

� Power conditioning and UPS with power ranges from 300 VA to more than 1000 kVA

� Integrated systems that provide both environmental and power protection in a single, flexible package

� Monitoring and control�from systems of any size or location, on-site or remote

� Service and support through more than 100 service centers around the world and a 24/7 Customer Response Center

While every precaution has been taken to ensure theaccuracy and completeness of this literature, LiebertCorporation assumes no responsibility and disclaims allliability for damages resulting from use of this informationor for any errors or omissions.

© 2006 Liebert CorporationAll rights reserved throughout the world. Specificationssubject to change without notice.

® Liebert and the Liebert logo are registered trademarksof Liebert Corporation. All names referred to aretrademarks or registered trademarks of their respectiveowners.

SL-25247 (2/06) Rev. 0

Technical Support/Service

Web Sitewww.liebert.com

Monitoring800-222-5877

monitoring@liebert.comOutside the US: 614-841-6755

Single-Phase UPS800-222-5877

upstech@liebert.comOutside the US: 614-841-6755

Three-Phase UPS800-543-2378

powertech@liebert.com

Environmental Systems800-543-2778

Outside the United States614-888-0246

LocationsUnited States

1050 Dearborn DriveP.O. Box 29186

Columbus, OH 43229

ItalyVia Leonardo Da Vinci 8

Zona Industriale Tognana35028 Piove Di Sacco (PD)

+39 049 9719 111Fax: +39 049 5841 257

Asia7/F, Dah Sing Financial Centre

108 Gloucester Road, WanchaiHong Kong

852 25722201Fax: 852 28029250

AC Power Systems

Connectivity

DC Power Systems

Embedded Power

Power Protection

Integrated Cabinet Solutions

Outside Plant

Precision Cooling

Site Monitoring and Services

1

LIEBERT NX� OPTIONSInstallation SheetDual Bus SynchronizerThe Dual-Bus Synchronizer (DBS) keeps the output of two independent UPS systems or parallel UPS sys-tems in synchronization even when the systems are operating in different modes and even when either or both systems are operating on batteries. When the DBS is used, one UPS system is designated as master, the other as slave.

The DBS usually is used with Smart Switch to achieve Dual Bus Power Supply configuration.

Performance RequirementsThe DBS operates under the following conditions:

� Both master and slave are on inverter(either system may be on inverter through the rectifier or on inverter through the batteries)

� Master on inverter, and slave on bypass� Master on bypass, and slave on inverter� Master and slave on bypass IF the bypass source is the same for both systems

DBS Cable and SettingsFor Paradigm-to-Paradigm dual bus configuration, with the help of only one optional DBS cable, the built-in DBS will operate normally without extra DBS control box or interface box. The DBS port is X4 on the Parallel Board (M3).

An optional, 9-pin DBS cable is used to connect two UPS systems through each system�s DB9 port on its par-allel board. For two parallel systems, the DBS cable can be mounted between any two units belonging to dif-ferent parallel systems. For information about the DBS kit or to order the optional equipment, see your local Liebert representative.

The DBS cable is connected as illustrated in Figure 1.

Figure 1 DBS cable connection

The DBS function is activated with configuration software; when the DBS takes effect, the graphic LCD will display �LBS active.�

X1-1 X1-2

X2-1 X2-2

Parallel Board

X4

X1-1 X1-2

X2-1 X2-2

Parallel Board

X4X3

DBS Cable

UPS Module or System #1

UPS Module or System #2

2

© 2004 Liebert CorporationAll rights reserved throughout the world. Specifications subject to change without notice.

® Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners.

SL-25226 (6/04) Rev. 0

Liebert Corporation1050 Dearborn DriveP.O. Box 29186Columbus, OH 43229

Telephone: 1-800-877-9222Facsimile: 1-614-841-6022www.liebert.com

1

LIEBERT NX BATTERY CIRCUIT BREAKER BOXInstallation Instructions

InstallationThe Liebert Battery Circuit Breaker box is required to protect the battery from overcurrents. It also provides electrical isolation between the UPS and the battery, permitting personnel to reduce the risks involved in maintenance work to a minimum.

Two battery circuit breaker boxes, which differ only in switch capacity, are available for installations where the battery is not installed in the battery cabinet. In those cases, the appropriate battery box is fitted as close as possible to the battery and connected to the UPS as shown in illustration on page 2. The separate circuit breaker box contains the same battery isolating circuit breaker as is mounted in the battery cabinet.

A separate safety earth must be connected between the UPS unit and circuit breaker box.

Two boxes are available, depending on the UPS power rating:

DescriptionThe circuit breaker has the following features:

� Short-circuit protection� Protection against battery cabinet and UPS connection errors (polarity reversal +/-).

Batterycircuit breaker box dimensions, switch capacity

UPSDimensions, in. (mm)

H-W-D Circuit Breaker

10-15 kVA 32-1/4 x 20-1/4 x 8-1/3 (819.2x514.4x210.8)

70A

20-30 kVA 125A

2

© 2004 Liebert CorporationAll rights reserved throughout the world. Specifications subject to change without notice.

® Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners.

SL-25245 (9/04) Rev. 0

Liebert Corporation1050 Dearborn DriveP.O. Box 29186Columbus, OH 43229

Telephone: 1-800-877-9222Facsimile: 1-614-841-6022www.liebert.com

Battery circuit breaker box connections�70A and 125A

NOTE1. The signal cables in this figure must be shielded and double-insulated.2. Connect the Pes (Protection Earth) of the UPS cabinet and BCB box to the same point.

ISOMETRIC VIEW W/O TO & COVER

(-)

CIRCUITBREAKER

(+)

(-)

(GND

)

(+)(-)

8.34"211.72mm

.38"9.53mm

3.98"101.2mm

3.86"97.95mm

5.39"137mm

5.39"137mm

.38"9.53mm

31.50"800.1mm(MTG DIM.)

32.25"819.15mm

2.62"66.62mm

15.00"381mm(MTG DIM.)

20.24"514.21mm

O .31"7.92mm (TYP. .25" HDWR)

REMOVEABLECOVER

CONDUIT ENTRYTOP & BOTTOM3

TB1

CUSTOMER GROUND.25" STUD FOR6GA - 2/0 WIRE

O .50"12.7mm

X6

(+)

(-)

(+)

FROM CUSTOMER'SBATTERY SYSTEM(FIELD INSTALLED)(FIELD SUPPLIED)

CONNECT TO UPS MODULE(FIELD INSTALLED)

123456

TB1

N.C. BLUEN.O. REDCOM BLACK

302

303

(-) (-)(+) (+)

NEUT

AL

1. HARDWARE FOR CONNECTING CABLES TO THE BREAKER SUPPLIED.2. "TYPE-1" RATED ENCLOSURE.3. LOW VOLTAGE WIRING NEEDS TO ENTER THIS BOX FROM THE TOP.4. DC OUTPUT POWER CONNECTIONS WILL ACCEPT (2) POSITIVE AND (2) NEGATIVE WIRES, ACCEPT 2GA.5. DC INPUT CONNECTION WILL ACCEPT 2GA WIRE FOR 10 -15KVA UPS WITH 70A BREAKER, OR 20-30KVA UPS WITH 125A BREAKER.

NEUTRAL BUSBAR

NEUTRALBUSBAR