American Power Conversion MX28B200 user manual Introduction, General Information

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2 Introduction

2.1. General Information

DC Power Plants from APC have unique features that make them easy to install, maintain, and upgrade. The rectifier units are modular and truly “hot-pluggable” into the shelf assembly without any separate AC wiring. All system settings are made from the system control unit that provides monitoring and control functions for each component of the system as well as alarm listings for system diagnosis and maintenance.

The APC Model MX28B is a modular stand-alone -48V DC power plant. It is configurable in such a manner that it will support most typical applications within the specified current ranges (either 200 or 400 amperes) without special application engineering or assistance. Distribution is included for up to 24 plug-in circuit breakers. These circuit breakers can be 1 to 100 amps, with 60-100 amp breakers requiring two positions and a circuit breaker adapter kit. An optional low voltage disconnect (LVD) can be provided on either the battery or the load side. A 400 amp MX28B is shown in Figure 2.1-1 MX28B-400 –48 VDC Power Plant. A block diagram is shown in Figure 2.1–1.

Figure 2.1-1 MX28B-400 –48 VDC Power Plant

MX28B200/400 –48 VDC User’s Manual (990-9133)

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Contents VDC Power Systems Page Table of Contents Remote Monitoring Revision Date Description Revision HistoryPage General Precautions Safety FirstPage General Information Introduction2 MX28B Block Diagram How to Use This Manual Page Mechanical Installation InstallationUnpacking Equipment Room / LocationVentilation AC Power ConnectionsBattery Connections Planning the Battery installationConnecting the Cables DC System Grounding Battery Temperature Probe InstallationDC Circuit Breakers DC Power Output Over-Current Protection#10 studs on 5/8 centers Fuse Rating Part Number DC GMT FusesPlug-in Circuit Breaker Installation Installation of Circuit Breakers and FusesLoad Connections GMT Fuse InstallationCable Size Considerations Circuit Breaker Connections 1 to 50 Amps1 Standard lug for 1 to 50A breakers Circuit Breaker Connections 60-100 Amps2 Adaptor and lugs for 60-100 Amp breakers GMT Fuse ConnectionsMonitoring and Relay Output Connections RJ45 Ethernet ConnectorFront Panel DB9 Connection Smart Cable DB9 ConnectionNO-NC-C External Alarm Input ConnectionsInitial Power-Up and Checkout Rectifier Module InstallationSystem Parameters Verification/Adjustment Full System Power Up Operation Technical DescriptionRectifier Management System Output Capacity System ManagementSystem Voltage Control System CurrentSystem Status and Alarm Reporting Battery ManagementBattery Charging and Protection DC DistributionBattery Temperature Compensation Controls and IndicatorsBattery/Load Low Voltage Disconnect Front Panel User InterfaceMX28B Status Alarms System Modules Batt PIN OEM Parameter Locations, Descriptions, and Default Values Minor Batt Disc Alm m+Batt Disc Thr m+ 10 a48V Cir BkrCir Bkr 1 Alm m+ Major000189 FW VersionGMT 1 Alm GMT 8 AlmLVD Reset EnableIn-Rly 1 Alm IgnoreOut-Rly 1 Alm m+ OEM S OffsetOut-Rly 6 Alm m+ Out-RlyMin RectFailCommRect Cfg Alm Rect CL AlmRect 1 FF DisableRect 1 RFA Rect RFA AlmSys LV Alm Sys LT ThrSys LV Thr 50.00Control Unit Menu Structure SYS MS System Module SET-ALM Setup DAV e l C o n d L e v e l I r d L e v e l U r t h L e v e l SYS Sysin AM Info Modgmt LM Alias GMT MOD Modlvd Front Panel LED Indicators External Alarm Inputs Input Relays Alarm Outputs Output RelaysPage Remote Monitoring Command and Monitoring ProtocolDescription Physical ConnectionsPage AC Input Specifications1MRF28H54BV Rectifiers 1MRF28H54BV50 RectifiersPscu RectifiersMechanical Power Shelf Control UnitMounting Compliance EnvironmentalPage APC Worldwide Customer Support Page General Provisions Warranty