American Power Conversion MX28B2400+27V, MX28B1200 Alarm Connections, Alarm Interface PC Board

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MX28B-1200+27V PRODUCT MANUAL

Rev 1

5.7 Alarm Connections

The alarm connections for all rectifiers, breakers, and fuses are factory pre-wired. The MX28B DC power plant, however, permits the user to program the system alarms in various ways. A Printed Circuit (PC) board designated “0P9133” is mounted in the space above the master control unit and provides terminal block connection points for alarm outputs and alarm inputs (Figure 5-7). These cage-clamp terminal blocks are operated by pushing back the lever, inserting the wire and then releasing the lever to clinch the connection. Recommended wire size is #28 AWG to #20 AWG.

Alarm Outputs		Alarm Inputs

Figure 5-8 Alarm Interface PC Board

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Contents Model MX28B1200/2400+27V Battery Temperature Probe Description Part NumberDC Distribution Options +24V LVD Options +24VRevision Date Description 09/12/2001 Initial releaseTable of Contents SETUP, ADJUSTMENTS, and Operation Page Precautions IntroductionInspection upon Receipt of Goods GeneralConcealed Damage Return of Damaged GoodsWarranty Returns Warranty Repair or ReplacementGeneral Provisions Exclusions and Limitations Description MX28B-1200/2400+27VMX28B1200/2400+27V System Diagram Power Output Capacity RectifiersConverters AC Input Power Control UnitBattery connections +24V DC Distribution48 V DC Distribution from Converters Optional DC DistributionEnvironmental MechanicalCompliance Safety Precautions PreparationRecommended Tools Recommended Test EquipmentRoom/Locations MountingAC Service and Ground Connections Ventilation Battery 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 InterfaceExternal Alarm Inputs Alarm Output RelaysSnmp Interface Parameter Locations, Descriptions, and Default Values Alarms StatusSystem SET-ALM Setup PIN DateOUT-RLY RLY-MAP AliasDiag Modules Rect SET-ALMParam InfoCirbkr SET-ALM Fuse SET-ALMAlias Fuse LVD SET-ALM Batt SET-ALMComp 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