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Noté. / 5. Basé sur avis des utilisateurs
Option Installations
30
5.0 OPTION INSTALLATIONS
5.1 Load Bus Synchronization
The Load Bus Synchronizer (LBS) keeps the output of two independent UPS systems or parallel UPS
systems in synchronization even when the systems are operating in different modes and even when
either or both systems are operating on batteries. When the LBS is used, one UPS system is desig-
nated as master, the other as slave.
The LBS option is typically used with dual-corded equipment or with either the Liebert SmartSwitch
or Static Transfer Switch (STS) for single-corded equipment.
5.1.1 Performance Requirements
The 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
5.1.2 DBS Cable and Settings
For NX-to-NX dual bus configuration, only one optional LBS cable is required, the built-in LBS will
operate normally without extra LBS control box or interface box. The LBS port is X4 on the parallel
board (M3). The parallel board is on the interior of the NX, above and left of the power electronics; see
Figure 32.
An optional, 9-pin LBS cable is used to connect two UPS systems through each system’s DB9 port on
its parallel board. For two parallel systems, the LBS cable can be mounted between any two units
belonging to different parallel systems. For information about the LBS kit or to order the optional
equipment, see your local Liebert representative.
The LBS cable is connected as illustrated in Figure 21.
Figure 21 Load Bus Synchronization cable connection
The LBS function is activated with configuration software; when the LBS 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
X4
X3
LBS Cable
UPS Module or
System #1
UPS Module or
System #2
The parallel board is on the
interior of the NX, above and
left of the power electronics;
see Figure 32
- Liebert NX 1
- 2
- TABLE OF CONTENTS 3
- SAVE THESE INSTRUCTIONS 9
- Battery Cabinet Precautions 10
- GLOSSARY OF SYMBOLS 11
- 1.0 INSTALLATION 12
- 1.3 Preliminary Checks 13
- 1.4 UPS Location 13
- 1.6 Mechanical Considerations 14
- 1.6.1 Clearances 15
- 1.6.2 Floor Installation 15
- 1.6.3 Cable Entry 15
- 10-30kVA UPS 15
- System Composition 15
- 1.6.4 Optional Cabinets 16
- 2.0 ELECTRICAL CONNECTIONS 17
- 2.1.2 UPS Input Configuration 18
- 2.1.3 Cabling Guidelines 18
- 2.1.4 Cable Connections 19
- 2.1.5 Safety Ground 20
- 2.1.6 Protective Devices 20
- System Output 20
- 2.1.7 Cabling Procedure 21
- Common Input Connections 21
- Dual Input Connections 21
- 2.2 Control Cables 22
- 2.3 Dry Contacts 23
- 2.3.3 BCB Box Interface 24
- 2.3.4 Output Dry Contacts 25
- 2.3.5 EPO Input—Optional 25
- Firmware Before M200 25
- EPO - NO 26
- EPO - NC 26
- 3.0 BATTERY INSTALLATION 27
- Battery Installation 30
- 3.5 Non-Standard Batteries 32
- 4.1 Bypass Switch 33
- 4.2 Normal (UPS) Mode 33
- 4.3 Bypass Mode 34
- 4.4 Maintenance Mode 34
- 4.5 Locating the Cabinet 34
- 4.6 Cable Installation 34
- 4.6.3 Input/Output Wiring 35
- Maintenance Bypass Cabinet 36
- Terminal 36
- Location 36
- 4.7 Bolting Cabinets Together 37
- 5.0 OPTION INSTALLATIONS 38
- 5.2.1 General 39
- Option Installations 40
- 5.3.5 Power Cables 42
- 5.3.6 Parallel Control Cables 42
- Auxiliary Dry Contact Cables 42
- Input Distribution 43
- DPN U3813078 Rev. N 45
- Midpoint Busbar Detail 45
- Front View 45
- Bottom View 45
- 5.10.1 Configuring Baud Rates 48
- Figure 28 OC Web card display 49
- 3. UPS Battery is LOW 50
- 4. UPS fault has occurred 50
- 6.0 INSTALLATION DRAWINGS 52
- (with door open) 53
- TOP LAYER MIDDLE LAYER 56
- BOTTOM LAYER 56
- 1+1 Parallel Cabinet 59
- 1 + N Parallel Cabinet 61
- 7.0 OPERATION 66
- Operation 67
- 8.1 Operator Control Panel 68
- 8.2 Mimic Display Indicators 69
- 8.3 Control Buttons 70
- 8.4 Alarm Buzzer 70
- 8.5 LCD Overview 71
- 8.6 Navigation Keys 72
- 8.7 UPS System Information 72
- 8.8 LCD Menus and Data Items 73
- 8.9 Language Selection 74
- 8.10 Current Date and Time 74
- 8.11 UPS Status Messages 77
- 8.12 Types of LCD Screens 78
- 8.12.3 UPS Help Screen 79
- 8.12.4 Screen Saver Window 79
- 8.13 Pop-Up Windows 80
- 9.0 OPERATING INSTRUCTIONS 81
- 9.1.1 Power Switches 82
- 9.2 UPS Start Up 83
- 9.4 Powering Down the UPS 85
- Operating Instructions 86
- 9.7 Auto Restart 87
- 9.9 Battery Protection 88
- 9.15.2 Shutting Down the UPS 91
- 9.16 Parallel System Start Up 93
- 9.17 Replacing Dust Filters 93
- 10.0 UPS SPECIFICATIONS 94
- Table 27 UPS terminal 95
- 10.4.2 Input Rectifier 96
- 10.4.4 Inverter Output 97
- 10.4.5 Bypass Input 97
- 30 208 315 400 208 250 400 101
- PPENDIX A-UPS STATUS MESSAGES 105
- Refer to 108
- UPS Status Messages 110
- SL-25212_REV01_06-07 112
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