User Manual 10H52188UM51 - Rev. 1 - 09/2011 3
Liebert NXC Contents
Contents
CHAPTER 1 PRODUCT INTRODUCTION ......................................................................................................................... 5
1.1 Features ........................................................................................................................................................................ 5
1.2 Model Configurations ................................................................................................................................................... 5
1.3 Appearance And Components ...................................................................................................................................... 6
1.3.1 Appearance ................................................................................................................................................................................ 6
1.3.2 Components .............................................................................................................................................................................. 6
1.4 Operating Principle ....................................................................................................................................................... 7
1.5 UPS State And Operation Mode .................................................................................................................................... 8
1.5.2 Normal Mode ............................................................................................................................................................................. 9
1.5.3 Bypass Mode .............................................................................................................................................................................. 9
1.5.4 Battery Mode.............................................................................................................................................................................. 9
1.5.5 ECO Mode (For Single UPS System Only) .................................................................................................................................... 9
1.5.6 FRC (Frequency Converter) Mode .............................................................................................................................................. 9
1.5.7 Fault State .................................................................................................................................................................................. 9
1.5.8 Maintenance Bypass Mode ....................................................................................................................................................... 10
1.6 Specifications ............................................................................................................................................................. 10
CHAPTER 2 SINGLE UPS INSTALLATION AND COMMISSIONING ............................................................................. 12
2.1 Unpacking Inspection ................................................................................................................................................. 12
2.2 Installation Preparation ............................................................................................................................................... 12
2.2.2 Location ................................................................................................................................................................................... 13
2.2.3 Environmental Requirement .................................................................................................................................................... 13
2.2.4 Installation Tools ...................................................................................................................................................................... 14
2.3 External Protective Device .......................................................................................................................................... 14
2.3.1 Rectifier And Bypass Input ........................................................................................................................................................ 14
2.3.2 Battery Input (for external Battery) .......................................................................................................................................... 15
2.4 Connecting Power Cables ........................................................................................................................................... 15
2.4.1 Connecting I/O Cables .............................................................................................................................................................. 17
2.4.2 Connecting and Installing External Battery ............................................................................................................................... 22
2.5 Single UPS Commissioning ......................................................................................................................................... 23
2.5.1 Check Before Power-On ........................................................................................................................................................... 23
2.5.2 Single UPS Parameters Setting ................................................................................................................................................. 23
2.5.3 Normal Mode Start-Up ............................................................................................................................................................. 26
2.5.4 Battery Mode Start-Up ............................................................................................................................................................. 26
CHAPTER 3 PARALLEL UPS INSTALLATION AND COMMISSIONING ....................................................................... 27
3.1 Features ...................................................................................................................................................................... 27
3.2 Requirements ............................................................................................................................................................. 27
3.3 Connecting Power Cables ........................................................................................................................................... 27
3.3.1 Connecitng I/O Cables .............................................................................................................................................................. 28
3.3.2 Connecting Parallel Cables ....................................................................................................................................................... 28
3.3.3 Connecting external Battery Cables ......................................................................................................................................... 30
3.4 Commissioning Parallel System .................................................................................................................................. 32
3.4.1 Check Before Power-On ........................................................................................................................................................... 32
3.4.2 Parallel System Parameters Setting .......................................................................................................................................... 32
3.4.3 Power-On Commissioning For Parallel System ......................................................................................................................... 33
3.5 Installation And Commissioning For Double Bus System with common neutral .......................................................... 34
3.5.1 Introduction ............................................................................................................................................................................. 34
3.5.2 Installing External Protective Device ........................................................................................................................................ 35
3.5.3 Connecting Power Cables ........................................................................................................................................................ 35
3.5.4 Connecting LBS Cables ............................................................................................................................................................. 35
3.5.5 Setting Parameters Of Double Bus System ............................................................................................................................... 37
CHAPTER 4 OPERATION AND DISPLAY PANEL .......................................................................................................... 38
4.1 Introduction ............................................................................................................................................................... 38
4.1.1 LED Indicators .......................................................................................................................................................................... 38
4.1.2 Audible Alarm (Buzzer) ............................................................................................................................................................. 38
4.1.3 Control Buttons ........................................................................................................................................................................ 39
4.1.4 LCD And Menu Buttons ............................................................................................................................................................ 39
4.2 LCD Screen Types ....................................................................................................................................................... 39
4.2.1 Start Screen .............................................................................................................................................................................. 39
4.2.2 Primary Screen ......................................................................................................................................................................... 40
4.2.3 Default Screen .......................................................................................................................................................................... 40
4.3 Detailed Description Of Menu Items ........................................................................................................................... 41
4.4 Prompt Window ......................................................................................................................................................... 43
4.5 UPS Alarm Message List .............................................................................................................................................. 43
CHAPTER 5 UPS OPERATION INSTRUCTIONS ............................................................................................................ 46
5.1 UPS Start-Up ............................................................................................................................................................... 46
5.2 Transfer Procedures Between Operation Modes ......................................................................................................... 46
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