Emerson Liebert NX User Manual Page 31
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Electrical Connections
Liebert
®
NX
™
21
3.3.3 Battery Circuit Breaker Control Interface
J10 is the Battery Circuit Breaker (BCB) box interface.
3.3.4 Output Dry Contacts
There are three output dry contact relays at the X1 slot (see Figure 7 and Table 4).
Figure 7 Output dry contacts and EPO wiring for firmware before M170
Table 3 BCB control interface
Position
Name
Description
J10.1 DRV BCB Driver Signal
J10.2 FB BCB Contact State
J10.3 GND Power Ground
J10.4 OL
BCB On-Line - Input - This pin will become active when
BCB interface is connected. (N.O.)
NOTE
All auxiliary cables of terminal must be double-insulated. The wire must be 600V, 18-16 AWG
stranded for maximum runs between 82 and 197 feet (25-60m), respectively.
Table 4 Output dry contact relays
Position Name
Description
J13.2 BFP_O
Bypass feedback protection relay. Normally open. Closed when bypass SCR is
shorted;. 5A, 250VAC/24 VDC
J13.3 BFP_S Bypass feedback protection relay center; 5A, 250VAC/24 VDC
J13.4 BFP_C
Bypass feedback protection relay. Normally closed. Open when bypass SCR is shorted;
5A, 250VAC/24 VDC
J21.2 INV_O
Inverter mode relay. Normally open. Closed when UPS is in inverter mode.; 5A,
250VAC/24 VDC
J21.3 INV_S Inverter mode relay center; 5A, 250VAC/24 VDC
J21.4 INV_C
Inverter mode relay. Normally closed. Open when UPS is in inverter mode;
5A, 250VAC/24 VDC
J25.2 ACF_O
Main input fault relay. Normally open. Closed when main input is in fault;
5A, 250VAC/24 VDC
J25.3 ACF_S Main input fault relay center; 5A, 250VAC/24 VDC
J25.4 ACF_C
Main input fault relay. Normally closed. Open when main input is in fault;
5A, 250VAC/24 VDC
NOTE
All auxiliary cables of terminal must be double-insulated. The wire must be 600V, 18-16 AWG
stranded for maximum runs between 82 and 197 feet (25-60m), respectively.
J25
ACF_O
ACF_S
ACF_C
J21
INV_C
INV_S
INV_O
X1
J13
BFP_C
BFP_S
BFP_O
NOTE: The black square on each slot indicates Pin 1.
- 2
- TABLE OF CONTENTS 3
- 7.0 LIEBERT BDC 4
- SAVE THESE INSTRUCTIONS 11
- 2Liebert 12
- Battery Cabinet Precautions 13
- 4Liebert 14
- GLOSSARY OF SYMBOLS 15
- 1.0 INTRODUCTION 16
- 2.0 INSTALLATION 17
- 2.3 Preliminary Checks 18
- 2.4 UPS Location 18
- Battery Location 19
- Final Position 19
- 2.6 Mechanical Considerations 20
- 2.6.4 Optional Cabinets 21
- Installation 22
- 12 Liebert 22
- 3.0 ELECTRICAL CONNECTIONS 23
- 3.1.2 UPS Input Configuration 24
- 3.1.3 Cabling Guidelines 24
- 3.1.4 Cable Connections 25
- 3.1.5 Safety Ground 25
- 3.1.6 Protective Devices 25
- 3.1.7 Cabling Procedure 26
- Common Input Connections 26
- Dual Input Connections 26
- Frequency Converter Mode 27
- 3.2 Control Cables 28
- 3.3 Dry Contacts 30
- 3.3.4 Output Dry Contacts 31
- EPO - NO 32
- EPO - NC 32
- 4.0 BATTERY INSTALLATION 33
- 4.3.1 Battery Cabinets 34
- 4.4 Non-Standard Batteries 36
- 4.5 BCB Shunt Trip 37
- 5.0 OPTIONS 38
- LBS Cable 39
- 5.2.1 General 40
- 480V, 3W 41
- System Input 41
- System Output 41
- 5.2.3 Operating Principles 42
- Redundancy Paralleling 42
- 5.2.4 Operation Modes Summary 42
- 5.3.2 Cabinet Installation 43
- 5.3.3 Preliminary Checks 43
- 5.3.4 Power Cables 43
- 5.3.5 Parallel Control Cables 43
- Auxiliary Dry Contact Cables 44
- 6.0 UPS SPECIFICATIONS 46
- Table 8 UPS terminal 47
- 6.4.1 Input Rectifier 48
- 6.4.2 DC Intermediate Circuit 49
- 6.4.3 Inverter Output 50
- 6.4.4 Bypass Input 50
- 7.2 Maintenance Mode 52
- 7.3 Locating the Cabinet 52
- 7.4 Cable Installation 52
- 7.4.3 Input/Output Wiring 53
- Isolation 55
- Transformer 55
- Wiring Legend 55
- 7.5 Bolting Cabinets Together 59
- 47" cabinet 60
- NSTALLATION DRAWINGS 61
- U3819205 62
- Source: U3819611, Rev. 0 63
- Source: U3819621, Rev. 1 64
- Installation Drawings 65
- 56 Liebert 66
- FRONT VIEW LEFT VIEW 67
- Front of UPS 68
- BOTTOM VIEW 68
- TOP VIEW 68
- DETAIL A 70
- (8.83") 71
- 62 Liebert 72
- DETAIL B 73
- 64 Liebert 74
- Detail B 75
- Top View 75
- (without BCB Cover Plate) 75
- Detail A 75
- Right Side 78
- 70 Liebert 80
- Without Covers 81
- 72 Liebert 82
- With Door Open 84
- Door Open 85
- 76 Liebert 86
- 9.0 OPERATION 87
- 9.1.1 Bypass Supplies 88
- 9.1.2 Operating Modes 88
- Normal Mode 88
- Battery Mode 88
- Bypass Mode 88
- Maintenance Mode 89
- Eco Mode 89
- 10.1 Operator Control Panel 90
- 10.2 Mimic Display Indicators 91
- 10.3 Control Buttons 92
- 10.4 Audible Buzzer 93
- 10.5 LCD Overview 93
- 10.6 Navigation Keys 94
- 10.7 UPS System Information 94
- 10.8 LCD Menus and Data Items 95
- Figure 58 Menu tree 96
- 10.9 Language Selection 98
- 10.10 Current Date and Time 98
- Figure 60 Set date and time 99
- 10.11 UPS Status Messages 100
- 10.12 Types of LCD Screens 101
- 10.12.3UPS Help Screen 102
- 10.12.4Screen Saver Window 102
- 10.13 Pop-Up Windows 103
- 11.0 OPERATING INSTRUCTIONS 104
- 11.2 UPS Startup 105
- F2 F4F1 F3 HELP 106
- Operating Instructions 107
- 98 Liebert 108
- 100 Liebert 110
- 11.7 Auto Restart 111
- 11.10 Battery Protection 112
- 11.13 Parallel System Startup 115
- 12.0 OPTIONS 116
- 12.1.5 Configuring Baud Rates 117
- Relay Card 118
- 12.3 Replacing Dust Filters 119
- 13.4 Battery Run Times 124
- 116 Liebert 126
- PPENDIX A-UPS STATUS MESSAGES 127
- Table 49 UPS status messages 128
- Technical Support / Service 132
- Locations 132
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