APC 480kW 400V manual Stop/Start UPS and Operating the External Service Bypass

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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

Mains

Load

Service Bypass

Switch

APC Silcon

UPS

	990-4041

User Guide APC Silcon 480kW 400V UPS	11

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Contents Copyright 2000 APC Denmark ApS 480kW 400V UPS User GuideThank You Safety Symbols used in this manualUser Guide APC Silcon 480kW 400V UPS Contents Display Unit IntroductionIntroduction Start UPS from stand-by Stop/Start UPS and Operating the External Service BypassNormal operation Load power xx% Stop UPS for 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%Bypass operation Operating the External Service Bypass Switch single systemsBypassing the Single System UPS 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 On the keyboard Set input switches Q001 to positionPress the green on button on all systems Isolating one UPS in a Parallel/Redundant System Stop/Start UPS and Operating the External Service Bypass Keyboard OperationOperation Batt. load Batt. tank Using the Remote DisplayDisplay of Measured Values Economy Mode Parameter Settings Parameter SettingsParameter Settings Programming Example Switching to Bypass OperationProgramming Keys Load power xx% Mode Comments Alarms and EventsAlarms and Events Displaying the Alarm StackAlarms Description Action Possible AlarmsDisplay will show invalid UPS data Correction of false alarm situations during service Rectifying Alarm MessagesParallel Operation Alarms Battery Capacity Test Maintenance & TestingMaintenance & Testing Battery Monitoring TestTest Press Battery capacity TestUntil Test Xxx PressAPC Silcon UPS Limited Factory Warranty WarrantyWarranty APC Denmark How to Contact APCHow to Contact APC APC Corporate