American Power Conversion 240-320kW 480V manual Service Bypass Switch APC Silcon

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Stop/Start UPS and Operating the External Service Bypass

CAUTION!

Do not leave UPS out of service for more than 48 hours. Refer to section 2.3 Stop (for complete power down).

2.5.2Switching the Single System UPS from External Bypass into Normal UPS Operation

Single Utility

Utility

Load

Utility 2

Service Bypass

Switch

APC Silcon

Dual Utility

Load

Service Bypass

Switch

APC Silcon

UPS

Utility 1

UPS

	990-4039

10	User Guide APC Silcon 240-320kW 480V UPS

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Contents APC Silcon 240-320kW 480V UPS User Guide Copyright 2000 APC Denmark ApSUser Guide APC Silcon 240-320kW 480V UPS Safety Symbols used in this manualThank You Contents Introduction IntroductionDisplay Unit Stop UPS for stand-by Stop/Start UPS and Operating the External Service BypassStart UPS from stand-by Acoustic alarm sounds Stop UPS for complete power downSwitching off the UPS Reset the acoustic alarm by pressingStart UPS from complete power down UPS Start-upClose the front doors Operating the External Service Bypass Switch single systems Service Bypass Switch APC Silcon System OFF Normal operation Load power 0% Bypassing the Parallel UPS System All UPSs Dual UtilityLamp indication on Bypass Panel Stop/Start UPS and Operating the External Service Bypass Press On the keyboard Following can be carried out on any UPSIsolating one UPS in a Parallel/Redundant System Stop/Start UPS and Operating the External Service Bypass Operation OperationKeyboard Display of Measured Values Batt. load Batt. tankUsing the Remote Display Economy ModeParameter Settings Parameter SettingsParameter Settings Parameter Setting CommentsProgramming Keys Switching to Bypass OperationProgramming Example Load power xx% Displaying the Alarm Stack Alarms and EventsAlarms and Events Displaying the Event StackPossible alarms Alarms Description ActionDisplay will show invalid UPS data Parallel Operation Alarms Rectifying Alarm MessagesCorrection of false alarm situations during service Battery Monitoring Test Maintenance & TestingMaintenance & Testing Battery Capacity TestUntil Warranty WarrantyAPC Silcon UPS Limited Factory Warranty APC Corporate How to Contact APCHow to Contact APC APC Denmark