APC 480kW 400V manual Bypassing the Parallel UPS System All UPSs

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Stop/Start UPS and Operating the External Service Bypass

2.6Operating the External Service Bypass Switch (parallel systems)

2.6.1 Bypassing the Parallel UPS System (All UPSs)

Mains

Load

Service bypass switch

APC Silcon

UPS

APC Silcon

UPS

CAUTION!

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

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User Guide APC Silcon 480kW 400V UPS	13

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Contents Copyright 2000 APC Denmark ApS 480kW 400V UPS User GuideUser Guide APC Silcon 480kW 400V UPS Safety Symbols used in this manualThank You Contents Introduction IntroductionDisplay Unit Normal operation Load power xx% Stop/Start UPS and Operating the External Service BypassStop UPS for stand-by Start UPS from stand-bySwitching off the UPS Stop UPS for complete power downBlank UPS start-up Start UPS from complete power downDisplay shows System OFF Normal operation load power XX%Bypassing the Single System UPS Operating the External Service Bypass Switch single systemsBypass operation Stop/Start UPS and Operating the External Service Bypass Bypass operation Normal operation Load power 0% System OFF Normal operation Load power 0% Bypass operationBypassing the Parallel UPS System All UPSs Acoustic alarm sounds for 30 secs Stop/Start UPS and Operating the External Service Bypass Press the green on button on all systems Set input switches Q001 to positionPress On the keyboard Isolating one UPS in a Parallel/Redundant System Stop/Start UPS and Operating the External Service Bypass Operation OperationKeyboard Display of Measured Values Using the Remote DisplayBatt. load Batt. tank Economy Mode Parameter Settings Parameter SettingsParameter Settings Programming Keys Switching to Bypass OperationProgramming Example Load power xx% Alarms and Events Alarms and EventsDisplaying the Alarm Stack Mode CommentsAlarms Description Action Possible AlarmsDisplay will show invalid UPS data Parallel Operation Alarms Rectifying Alarm MessagesCorrection of false alarm situations during service Maintenance & Testing Maintenance & TestingBattery Monitoring Test Battery Capacity TestUntil Battery capacity TestTest Xxx Press Test PressWarranty WarrantyAPC Silcon UPS Limited Factory Warranty How to Contact APC How to Contact APCAPC Corporate APC Denmark