American Power Conversion MX28B400 user manual DC Output with either Rectifier, Rectifiers

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6.2. DC Output (with either Rectifier)

Nominal Output Voltage (factory set)

27.2 Vdc

 

 

Operating Voltage Range

22 – 29 Vdc

 

 

Rated Output Current (per Rectifier)

100 A

 

 

Rated Output Power (per Rectifier)

2800 W (45ºC)

 

 

Efficiency

91% Typical

 

 

6.3. Controls and Indicators

Rectifiers

Input Healthy LED

AC power present.

 

 

Output Healthy LED

DC output voltage within operating range (20 to

 

29 Vdc).

 

 

Output Current LED

On when rectifier is supplying current.

 

 

Thermal Control LED

On when one of three internal sensors is above

 

90ºC

 

 

Current Limit LED

On when rectifier is in current limit.

 

 

Overvolts LED

On when rectifier is above 29.5 Vdc. (Must be

 

powered down to reset)

 

 

Overtemp LED

On when one of three internal sensors is above

 

130ºC. Power Conversion is inhibited.

 

 

Fan Fail LED

On when Fan is running too slow.

 

 

Standby LED

On when the unit is in the standby mode. No

 

output power is produced. Rectifier is still

 

active

 

 

+V Test Point

Rectifier Voltage can be measured with a

 

voltmeter between COM and +V.

 

 

COM Test Point

Negative reference for both +V and +I

 

 

MX28B400 +24 VDC User’s Manual

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Contents Page Table of Contents Remote Monitoring Revision History Revision Date DescriptionSafety First General PrecautionsIntroduction General Information2 MX28B-400 +24 Vdc System Wiring Diagram with Battery LVD How to Use This Manual Installation Mechanical InstallationUnpacking Equipment Room / LocationAC Power Connections VentilationBattery Connections Planning the Battery installationConnecting the Cables Battery Temperature Probe Installation 2 Battery Temperature Probe InstallationDC System Grounding DC Power Output Over-Current Protection DC Circuit BreakersBreaker Part Number Adaptor Size Rating Plug-in Circuit Breaker Installation Load Cable Size ConsiderationsCircuit Breaker Connections 1 to 50 Amps Circuit Breaker Connections 60-100 AmpsMonitoring and Relay Output Connections GMT Fuse OptionFront Panel DB9 Connection Smart Cable DB9 ConnectionRJ45 Ethernet Connector Relay Output ConnectionsExternal Alarm Input Connections NO-NC-CRectifier Module Installation Initial Power-Up and CheckoutSystem Parameters Verification/Adjustment Battery Maximum Recharge Rate default = 12AFull System Power Up Operation Technical DescriptionRectifier Management System Status and Alarm Reporting System ManagementSystem Output Capacity System Voltage ControlBattery Management Battery Charging and ProtectionBattery Temperature Compensation DC DistributionControls and Indicators Battery/Load Low Voltage DisconnectFront Panel User Interface Status Alarms System Modules Batt PIN OEM Parameter Locations, Descriptions, and Default ValuesAlarm Item No AlarmsAddress Switzer AvMinor 22.00Batt Max Rechm+ 50 aComp Lknee Comp Method m+Comp TC 00mVFuse 1 Alm Hw Batt C Almm+Hw Batt T Almm+ Hw LVD AlmDisable LVD ResetLamp Test LVD OptionOut-Rly RelayOut-Rly 1 Dly m+ SecRect CL Alm Rect 1 CLRect 1 Curr 24.9Rect Stdby Almm+ Rect 1 StdbyStore Cfg Sys CurrentSys Temp 26.7Sys Voltage Test Maj RlyStatus Alarms Control Unit Menu StructureV 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 Sysout AP Alias MOD Modrec EM Modules Batt Rect Conv CIR SET-ALM Param MOD Modcir MOD Modlvd MT LVD SET-ALM Param Front Panel LED Indicators Alarm Outputs Output Relays External Alarm Inputs Input RelaysCommand and Monitoring Protocol Remote MonitoringDescription Physical ConnectionsSpecifications AC Input1MRF28H27BV Rectifiers 1MRF28H27BV50 RectifiersDC Output with either Rectifier RectifiersPower Shelf Control Unit PscuMechanical EnvironmentalCompliance APC Worldwide Customer Support Limited Product Warranty