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TABLE OF CONTENTS
1.0 INTRODUCTION
1.1 System Description . . . ..............................................................3
1.2 Reliability . .......................................................................7
1.3 Safety Precautions ..................................................................8
1.4 Modes ofOpe ration. . . ..............................................................9
1.4.1 Normal(LoadonUPS)...............................................................9
1.4.2 InputPowerFailure..................................................................9
1.4.3 Recharge..........................................................................9
1.4.4 Overload..........................................................................9
1.4.5 Redundant. . . ......................................................................9
1.4.6 Bypass(Internal)....................................................................9
1.4.7 MaintenanceBypass.................................................................9
1.4.8 Off-Battery........................................................................9
1.5 OperatorControls .................................................................10
1.6 Options..........................................................................12

2.0 THEORY OF OPERATION

2.1 GeneralC omponentDescriptions . ....................................................13
2.2 DetailedComponent Descriptions . ....................................................15
2.2.1 Controls..........................................................................15
2.2.2 Rectifier/Charger...................................................................16
2.2.3 BatteryChargingCircuit.............................................................17
2.2.4 Inverter..........................................................................18
2.2.5 StaticBypass......................................................................19
2.2.6 RedundantMode ...................................................................22
3.0 OPERATION
3.1 DisplayScreenandOperatorControls.................................................23
3.1.1 MasterMenuScreen................................................................29
3.1.2 Monitor/MimicDisplayScreen........................................................31
3.1.3 Walk-InDisplayScreen..............................................................40
3.1.4 StatusReportsScreens..............................................................41
3.1.5 SystemConfigurationScreens ........................................................48
3.1.6 AlarmLimitSettingsScreen..........................................................55
3.1.7 LoadTransferProceduresScreen......................................................57
3.1.8 Start-UpProceduresScreen...........................................................58
3.1.9 ShutdownProceduresScreen.........................................................60
3.1.10 BatteryTime Screen (Module Only)....................................................62
3.1.11 MeterCalibrationScreen............................................................65
3.1.12 BatteryEqualizeScreen.............................................................66
3.1.13 AlarmandStatusMessages...........................................................67
3.1.14 CommunicationInterfaces...........................................................75
3.2 Modes ofOpe ration. . . .............................................................78
3.2.1 LoadOnBypass ...................................................................78
3.2.2 OKToTransfer....................................................................79
DISCONTINUED
PROD U C T