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Electrical Connections
14
Internal UPS Battery Connections
The UPS internal batteries will be connected at the factory, EXCEPT the Anderson connections
between the shelves and to the fuses.
Observe the battery cable polarity. Be sure that the battery connector is made with the cor-
rect polarity.
11. Refit all protective covers removed for cable installation
2.2 Control Cables
2.2.1 Monitor Board Features
Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery
system (external battery circuit breaker, battery temperature sensor), communicate with a personal
computer or provide alarm signaling to external devices or for Remote Emergency Power Off (REPO).
The monitor board, arranged for this purpose, is located on the rear of the operator access door. The
main features are:
• Input and Output dry contacts signal (one pair of contacts of relay)
• Emergency Power Off control (EPO)
• Environmental parameter input interface
• User communication (for data setting and user background monitor)
• Intellislot™ interface
• Modem interface
• Temperature detect interface
Figure 6 shows the relationship and connection between the monitoring (U2) board and other boards
in the UPS.
Figure 6 Monitor board U2
!
WARNING
The DC bus is live when this internal battery connection is made. This connection is to be
performed ONLY by Liebert Global Services at startup.
X1
User Interface
Board
U1
DSP Control
K1
Key & LED Board
U2
Monitor Board
M3
Parallel Logic
Board
M5
Auxiliary Power
- 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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