APC 480kW 400V manual Introduction, Display Unit

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Introduction

1.0 Introduction

This UPS system is designed to offer reliable and problem-free power supply for several years. The system requires only a minimum of maintenance, but we recommend you follow the maintenance guidelines described in section 6.0 Maintenance & Testing.

1.1Display Unit

The display unit (located on the front of the UPS) is the link between the user and the UPS and consists of a display, an alarm LED indicator and a keyboard. The display reads parameters, measured values and alarm messages. Alarms and the pressing of keys will activate a back light which is set to switch off automatically after 5 minutes of inactivity.

By pressing and simultaneously you increase the back light contrast. The pressing of

and simultaneously decreases the contrast.

The LED alarm is linked to an acoustic signal indicating incorrect operation. Alarms will change the LED light from green to red. Use keyboard to program operating parameters and to display parameters / alarm messages.

LCD-display with back light

Alarm LED

Green: OK

Red: Alarm

Keyboard

NOTICE!

Display accuracy is ±2%, ±1digit.

990-4041

4	User Guide APC Silcon 480kW 400V UPS

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Contents 480kW 400V UPS User Guide Copyright 2000 APC Denmark ApSUser Guide APC Silcon 480kW 400V UPS Safety Symbols used in this manualThank You Contents Introduction IntroductionDisplay Unit Stop/Start UPS and Operating the External Service Bypass Normal operation Load power xx%Stop UPS for stand-by Start UPS from stand-byStop UPS for complete power down Switching off the UPSBlank Start UPS from complete power down UPS start-upSystem OFF Normal operation load power XX% Display showsBypassing the Single System UPS Operating the External Service Bypass Switch single systemsBypass operation Stop/Start UPS and Operating the External Service Bypass System OFF Normal operation Load power 0% Bypass operation Bypass operation Normal operation Load power 0%Bypassing 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 CommentsPossible Alarms Alarms Description ActionDisplay 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 TestBattery capacity Test UntilTest Xxx Press Test PressWarranty WarrantyAPC Silcon UPS Limited Factory Warranty How to Contact APC How to Contact APCAPC Corporate APC Denmark