5.4 Setting ECO Mode.............................................................................................................................................................. 126
5.5 Starting the Inverter.......................................................................................................................................................... 128
5.6 Shutting Down and Powering O the UPS............................................................................................................... 129
6 Parallel System Commissioning.......................................................................................131
6.1 Starting a Parallel System............................................................................................................................................... 131
6.2 Shutting Down and Powering O a Parallel System............................................................................................. 136
6.3 Performing EPO...................................................................................................................................................................137
6.4 Commissioning a Dual-Bus System..............................................................................................................................137
7 Maintenance.........................................................................................................................139
7.1 UPS Maintenance............................................................................................................................................................... 141
7.2 Lead-Acid Battery Maintenance.................................................................................................................................... 145
7.3 Testing Batteries..................................................................................................................................................................150
7.3.1 Forced Equalized Charging Test................................................................................................................................. 151
7.3.2 Shallow Discharge Test................................................................................................................................................. 152
7.3.3 Capacity Test..................................................................................................................................................................... 153
7.3.4 Test Data Download...................................................................................................................................................... 154
8 Troubleshooting...................................................................................................................155
9 FAQ......................................................................................................................................... 159
9.1 Starting the UPS in Battery Mode................................................................................................................................ 159
9.2 Transferring to Bypass Mode.......................................................................................................................................... 159
9.3 Transferring to Maintenance Bypass Mode............................................................................................................... 160
9.4 Transferring from Maintenance Bypass Mode to Normal Mode....................................................................... 161
9.5 Performing EPO...................................................................................................................................................................162
9.6 Clearing the EPO State..................................................................................................................................................... 163
A Acronyms and Abbreviations........................................................................................... 164
UPS5000-A-(30 kVA-120 kVA)
User Manual Contents
Issue 17 (2024-02-21) Copyright © Huawei Digital Power Technologies Co., Ltd. viii
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