American Power Conversion MX28B2400, MX28B4800 manual Circuit Breaker/LVD Ribbon Cable Connections

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Circuit Breaker/LVD Ribbon Cable Connections

Additional cables must be connected between cabinets to ensure that the circuit breaker alarms in the expansion bays are reported correctly. The circuit breakers and LVDs are connected together through the use of a Circuit Breaker / LVD Expansion Board. The ribbon cables on the left hand side of the board go to the bay to the left. The ribbon cables on the right hand side of the board go to the bay to the right. If there is an open Alarm Contact Bus connector (no bay to the side of the unit) the cable connector is left open and no further action is required. However if the LVD Bus ribbon cable connector is open, the pins nearest the connector will have to be jumpered. Install the jumpers using Figure 3.2-5as a guide to jumper orientation. If a cable is installed remove the jumpers on the pins nearest the installed ribbon cable.

Figure 3.2-5 Circuit Breaker / LVD Expansion Board

MX28B1200/2400 MX28B1200/4800 –48 VDC User’s Manual

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Contents VDC Power Systems Table of Contents Commissioning and Preventive Maintenance APC Worldwide Customer Support Limited Product Warranty Revision Date Description Revision HistoryGeneral Precautions Safety FirstIntroduction How to Use This ManualGeneral Information 1 MX28B-1200 -48 VDC Power Plant Rectifier Bay 2 MX28B Block Diagram Mechanical Installation InstallationUnpacking Equipment Room / LocationMounting Power Bus Connections2 MX28B-1200-2400 has a maximum 5 Circuit Breaker / LVD Expansion Board Circuit Breaker/LVD Ribbon Cable ConnectionsFuse Alarm Ribbon Cable Connections AC Power ConnectionsVentilation 1 AC Input Wiring Planning the Battery Installation Battery Connections1 Battery Cable Connection Locations Connecting the Battery CablesDC System Grounding 2 Battery Probe ConnectionDC Plug-in Circuit Breakers DC Power Output Over-Current ProtectionBreaker Part Number Rating 2 Plug-in Circuit Breakers 4 Bolt-in Circuit Breakers DC Bolt-in Circuit Breakers5 Telecom Fuses Telecom FusesPlug-in Circuit Breaker Installation Installation of Circuit Breakers and Fuses2 Circuit Breaker Alarm Wiring Bolt-in Circuit Breaker InstallationGMT Fuse Installation Telecom Fuse InstallationCable Size Considerations Load ConnectionsCircuit Breaker Connections 1 to 50 Amps Circuit Breaker Connections 60-100 AmpsGMT Fuse Connections Monitoring and Relay Output ConnectionsFront Panel DB9 Connection Smart Cable DB9 ConnectionRelay Output Connections RJ45 Ethernet ConnectorNO-NC-C External Alarm Input ConnectionsRectifier Module Installation Electrical Installation Commissioning and Preventive MaintenanceBattery Visual and Safety Inspection Pre-Commissioning InspectionCommissioning AC Power UpInitial Set-up Battery Power Up DC Power UpRectifier Test LVD TestCircuit Breaker/ Fuse Test Battery Temperature CompensationUser Inputs Output RelaysFinal Inspection Technical Description OperationRectifier Management System Output Capacity System ManagementSystem Voltage Control System CurrentSystem Status and Alarm Reporting Battery ManagementBattery Charging and Protection DC DistributionBattery/Load Low Voltage Disconnect Controls and IndicatorsFront Panel User Interface Parameter Locations, Descriptions, and Default Values Status Alarms System Modules Batt PIN OEMNo Alarms Alarm ItemAddress SwitzerBatt HT Thr Batt HT Alm70.0 C Batt HV AlmMajor Cir Bkr 1 Alm m+Cir Bkr 72 Almm+ Comp HkneeFuse 16 Alm Fuse 1 AlmHw Batt C Almm+ MinorLVD Option LVD Reset48.00 LVD TripSec Out-Rly 1 Dly m+Out-Rly 6 Dly m+ Relay MajorRect 1 Desc DisableMRF28H54 Rect 1ofN Almm+Sys HV Thr Sys HV AlmSys LT Alm Sys LT Thr90025 TimeControl 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 Modrec AM Info Modfuse LM Alias Fuse MOD Modlvd Modlvd LM Param Front Panel LED Indicators Alarm Outputs Output RelaysSection External Alarm Inputs Input Relays Remote Monitoring Command and Monitoring ProtocolDescription Physical ConnectionsSystem Visual and Safety Inspection Preventive MaintenanceEquipment InspectionSystem Voltage Test TestRectifier Current Test System Temperature Test Rectifier Alarm TestBattery Current Test Rectifier Current Share TestBattery Preventive Maintenance Procedure Battery Temperature TestFinal Inspection AC Input Specifications1MRF28H54BV Rectifiers 1MRF28H54BV50 RectifiersRectifiers VDCPower Shelf Control Unit Environmental MechanicalCompliance US and Canada APC Worldwide Customer SupportToll Free WorldwideLimited Product Warranty