6.2.2 Startup Procedures in ECO Mode 109
6.2.3 Startup Procedures in Battery Mode (Battery Cold Start) 110
6.3 Procedures for Transfer between Operation Modes 111
6.3.1 Transfer from Normal Mode to Battery Mode 111
6.3.2 Transfer from Normal Mode to Bypass Mode 111
6.3.3 Transfer from Bypass Mode to Normal Mode 111
6.3.4 Transfer from Normal Mode to Maintenance Mode 112
6.3.5 Transfer from Maintenance Mode to Normal Mode 113
6.4 Battery Test Procedures 114
6.5 UPS Shutdown Procedures 116
6.5.1 Procedures for Completely Powering Down UPS 116
6.5.2 Procedures for Completely Powering Down UPS while Maintaining Power to Load 116
6.6 EPO Procedures 116
6.7 UPS Reset Procedures after EPO 117
6.8 Automatic Restart 117
6.9 Selecting Language 118
6.10 Changing Current Date and Time 119
6.11 Control Password 120
7 Battery 121
7.1 Introduction 121
7.2 Safety 121
7.3 UPS Battery 123
7.4 Precautions for Installation Design 123
7.5 Battery Installation Environment and Number of Batteries 125
7.5.1 Installation Environment 125
7.5.2 Number of Batteries 126
7.6 Battery Protection 126
7.7 Battery Installation 127
7.8 Design of Battery Room 128
7.9 Common Battery String 129
7.10 Connections between battery compartments and UPS 130
7.11 BCB Box (Optional) 130
7.12 Battery Ground Fault Detector (Optional) 134
7.13 BCB Reference Current and Connection 135
7.14 Battery Maintenance 136
7.15 Disposal of Used Battery 137
8 Parallel System and LBS System 139
8.1 General 139
8.2 System Installation Procedures 139
8.2.1 Preliminary Checks 139
8.2.2 Cabinet Installation 139
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Vertiv™ Liebert® EXM2 UPS User Manual
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