American Power Conversion MX28B2400+27V, MX28B1200 manual Control Unit, AC Input Power

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MX28B-1200+27V PRODUCT MANUAL

Rev 1

4.5 Control Unit

The microprocessor-based power system control unit is 1U high (1.75”) and provides control and monitoring functions. Features implemented are:

∙32-character alphanumeric display (2 lines by 16 characters)

∙LED alarm and status indicators

∙Standard voltage and battery charging control

∙Battery temperature compensation (optional temperature probe)

∙Monitoring of up to 6 shelves of four rectifiers each and up to 8 DC to DC Converters

∙Individual alarm monitoring of 72 breakers

∙Individual alarm monitoring of 16 power distribution fuses

∙Eight alarm / annunciation relays (Major, Minor, and six user defined) with form C contact outputs

∙Four external alarm inputs (either N.O. or N.C. contacts)

∙Control for two independent Low Voltage Disconnects (LVD’s)

∙WEB/SNMP Interface Card for remote monitoring

4.6AC Input Power

Each rectifier shelf requires 208/220/240V ac, single -phase, 50/60 Hz, supplied through an external 80-amp breaker. Three Vertical wire conduits in the left rear of the frame provide routing for AC input power connection of each shelf. The Earth Ground wiring is factory installed to each rectifier shelf. A power entry box with 3 pilot holes is provided at the top and rear of the frame where AC wiring conduit can be run. Refer to Figure 4-3.

AC wire conduits (3)

Figure 4.3 Power Entry Box

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Contents Model MX28B1200/2400+27V DC Distribution Options +24V Battery Temperature ProbeDescription Part Number LVD Options +24VRevision Date Description 09/12/2001 Initial releaseTable of Contents SETUP, ADJUSTMENTS, and Operation Page Inspection upon Receipt of Goods PrecautionsIntroduction GeneralConcealed Damage Return of Damaged GoodsGeneral Provisions Warranty ReturnsWarranty Repair or Replacement Exclusions and Limitations Description MX28B-1200/2400+27VMX28B1200/2400+27V System Diagram Converters Power Output CapacityRectifiers AC Input Power Control UnitBattery connections +24V DC Distribution48 V DC Distribution from Converters Optional DC DistributionCompliance EnvironmentalMechanical Recommended Tools Safety PrecautionsPreparation Recommended Test EquipmentRoom/Locations MountingAC Service and Ground Connections VentilationBattery Disconnect Connecting the Cables Cable Sizing ConsiderationsRectifier Installation Converter InstallationAlarm Connections Alarm Interface PC BoardExternal Alarm Inputs Alarm OutputsConnecting The Loads DC Circuit BreakersInstallation of Circuit Breakers 2.2 -48V Circuit Breaker Load ConnectionsBattery Temperature Probe Installation Power-Up and CheckoutApply AC Power System Parameters Verification/AdjustmentFull System Power Up SETUP, ADJUSTMENTS, and Operation User InterfaceSnmp Interface External Alarm InputsAlarm Output Relays Parameter Locations, Descriptions, and Default Values System SET-ALM AlarmsStatus OUT-RLY RLY-MAP Setup PINDate AliasParam DiagModules Rect SET-ALM InfoCirbkr SET-ALM Fuse SET-ALMComp Alias Fuse LVD SET-ALMBatt SET-ALM PIN OEM MX28B-1200+27V Product Manual RevParameter Description Display Screens Default Settings Conv LV Alm OFF 40.0 CBatt Disc Alm m+ Conv Fail Safem+ Cir Bkr 1 Alm m+ Out-Rly LVD1 LVD2

MX28B2400+27V, MX28B1200 specifications

The American Power Conversion (APC) MX28B1200 and MX28B2400+27V are advanced power management solutions designed to deliver superior reliability and performance for critical applications. These models are an integral part of APC’s extensive range of uninterruptible power supplies (UPS), catering specifically to high-performance environments such as data centers, server rooms, and industrial systems.

One of the standout features of the MX28 models is their robust power output capability. The MX28B1200 offers a 1200VA power rating, while the MX28B2400+27V boasts a substantial 2400VA rating. This impressive output ensures that connected equipment remains operational during power outages, providing essential backup support and minimizing downtime.

Another key characteristic is their advanced battery management technology, which incorporates intelligent charging systems to extend battery life and improve overall efficiency. This technology helps optimize the charging process, ensuring that the batteries are always in top condition and ready to supply power when needed.

The MX28B series also integrates smart LCD displays that provide real-time information on power conditions, battery status, and system performance. This user-friendly interface allows administrators to monitor the UPS at a glance, facilitating easier management and quicker response times in case of any issues.

In addition to reliable power delivery, the MX28 models emphasize scalability and flexibility. They are designed to support a variety of configurations and are compatible with a range of external battery packs. This ability to adapt means businesses can expand their power capabilities without overhauling their existing systems.

Furthermore, the MX28B series includes advanced protection features against power surges, voltage fluctuations, and other electrical disturbances. This ensures the safety of connected devices, safeguarding against potential damages and enhancing the overall integrity of critical operations.

The design of the APC MX28 models prioritizes efficiency, compliance with global energy standards, and reduced operational costs. This focus on efficiency not only leads to savings but also aligns with sustainable practices, making them an ideal choice for environmentally conscious organizations.

Overall, the APC MX28B1200 and MX28B2400+27V represent a significant advancement in UPS technology, combining power reliability, intelligent management, and environmentally friendly design to support a wide array of demanding applications across various industries.
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