7.1.2.1 Obtaining Startup Password.................................................................................................................................... 107

7.1.2.2 Settings Wizard............................................................................................................................................................ 107

7.1.3 Starting the Inverter.......................................................................................................................................................109

7.1.4 Powering On Loads........................................................................................................................................................ 110

7.1.5 (Optional) Setting Parameters for the BCB Box...................................................................................................111

7.1.6 (Optional) Configuring the Bottom Cabling Cabinet......................................................................................... 111

7.1.7 (Optional) Setting the Backfeed Protection Card................................................................................................ 111

7.1.8 (Optional) Setting the Intelligent Detection Card...............................................................................................112

7.2 Shutting Down and Powering Off the UPS............................................................................................................... 112

7.3 Cold-Starting the UPS Using Batteries........................................................................................................................ 114

7.4 Transferring to Bypass Mode Manually...................................................................................................................... 115

7.5 Setting ECO Mode.............................................................................................................................................................. 115

7.6 Testing Batteries..................................................................................................................................................................116

7.6.1 Lead-Acid Battery Test.................................................................................................................................................. 116

7.6.1.1 Performing a Forced Equalized Charging Test...................................................................................................116

7.6.1.2 Performing a Shallow Discharge Test................................................................................................................... 117

7.6.1.3 Performing a Capacity Test...................................................................................................................................... 119

7.6.2 Lithium Battery Test....................................................................................................................................................... 120

7.6.2.1 Performing a Shallow Discharge Test................................................................................................................... 120

7.6.2.2 Performing a Capacity Test...................................................................................................................................... 121

7.6.2.3 Performing a Group Capacity Test......................................................................................................................... 122

7.6.3 Downloading the Test Data.........................................................................................................................................123

7.7 Transferring to Maintenance Bypass Mode............................................................................................................... 124

7.8 Transferring from Maintenance Bypass Mode to Inverter Mode.......................................................................125

7.9 Performing EPO...................................................................................................................................................................125

7.10 Clearing the EPO State...................................................................................................................................................125

7.11 Exporting Data.................................................................................................................................................................. 126

7.12 Setting Hibernation Mode............................................................................................................................................ 127

8 Parallel System Commissioning.......................................................................................129

8.1 Starting a Parallel System............................................................................................................................................... 129

8.2 Shutting Down and Powering Off a Parallel System............................................................................................. 133

8.3 Performing EPO...................................................................................................................................................................133

8.4 Isolating a Faulty UPS from a Parallel System......................................................................................................... 134

8.5 Restoring an Isolated UPS in a Parallel System....................................................................................................... 135

8.6 Adding a Single UPS or Multiple UPSs to a Parallel System............................................................................... 135

8.7 Commissioning a Dual-Bus System..............................................................................................................................141

9 Routine Maintenance.........................................................................................................143

9.1 UPS Maintenance............................................................................................................................................................... 143

9.1.1 Monthly Maintenance................................................................................................................................................... 144

9.1.2 Quarterly Maintenance................................................................................................................................................. 144

9.1.3 Annual Maintenance......................................................................................................................................................145

9.2 Lead-Acid Battery Maintenance.................................................................................................................................... 145

Issue 02 (2021-04-22)

Table of Contents