Emerson NT5C06D user manual Operation

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4. Operation

In addition to rectifying the AC, the input circuit provides EMI filtering, inrush current limiting, low and high AC inhibit, power factor compensation, surge voltage protection, and is equipped with a 13 A AC breaker for input protection.

The output section provides additional EMI filtering and contains an internal shunt for output DC current measurement and a 35 A circuit breaker for output protection.

The monitoring circuitry includes; soft start, rectifier fail alarm (RFA), monitoring and control for local and remote equalize, temporary release, thermal shutdown, low and high AC voltage inhibit, loss of AC voltage alarm, local and remote high voltage shutdown (HVSD), local and remote HVSD reset, and fan failure detection.

A 2-1/2 digit output current meter displays the output current. An internal logic power supply provides the various voltages required by the logic circuitry and the cooling fan unit.

Helios Rectifier 25/48NT5C06D Installation and User Manual

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Contents P0831010 Standard 7.00 May Helios Rectifier 25/48 Single Phase -48V, 25 aPage Helios Rectifier 25/48 Single Phase -48V, 25A Page Publication history This page is left blank intentionally Contents Contents List of Figures List of ProceduresShelf List of TablesThis page is left blank intentionally Description IntroductionMPS75 NT5C10CX  power shelf 23-inch ApplicationsEquipment Identification MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables NT5C06D Switch Mode Rectifier Specifications Electrical specificationsElectrical specifications Output noise and ripple Efficiency and Power FactorReliability Heat DissipationEnvironmental specifications Operating TransportationStorage Specifications Installation and start up Installing the power shelfTools and test equipment Procedure 1 Installing the power shelf Step Action Wiring the power shelfAC cable wire size Installing the AC powerAWG for each rectifier Max for each rectifierPower shelf individual AC connection DC Conductors InstallationConnecting the DC power shelf Control and Alarm ConnectionsRectifier 1 fail alarm Rectifier Failure AlarmRectifier 2 fail alarm Rectifier 3 fail alarmFan Alarm AC Line Fail AlarmDC Circuit Breaker Sense FailA0384387 SIG NAL Cables FRO M Shelves Installing the rectifier Factory settingVerification High Voltage Shutdown Hvsd Adjustment Procedure 4 Starting up the rectifier StepFloat Voltage Adjustment Rectifier meter accuracy= 52.2 + .15 V = 52.35 Ii Forced Share Current Limit Verification CLLoad Sharing Procedure 5 Adjusting the load share Step Action Load Share Adjustment ProcedureSlope Load Share Forced Load ShareOperation Front panel controls FeaturesLocal float / equalize control High voltage shutdown Hvsd localIndicators Start-up delayRectifier failure alarm RFA Fan failure alarmLocal ON/OFF control AC breaker Sense fail alarm SEN FailRemote ON/OFF control Remote voltage sensingSequential start Parallel operationDischarge of output capacitors Power interface edge connector Local / remote high voltage shutdown resetInput AC voltage monitor Thermal shutdownPower interface connections Signal interface connectorControl signal connections Maintenance Procedure 6 Adjusting the float / equalize StepFloat / equalize High voltage shutdown Hvsd Cooling fanFan failure Fan replacement NT5C06D rear view Power shelf This page is left blank intentionally Troubleshooting Alarm indication RFA faultSystem fault diagnosis Fault symptom Possible causes Erratic load fault SEN Fail faultCurrent or voltage float fault Fault symptom Possible causesCPC Appendix a Replacement partsAppendix a Replacement parts Appendix B Technical service assistance Local toll-free prefixesCountry Appendix B Technical service assistance Toll-free technical assistance numbersUnited States Canada Europe Asia and the Pacific List of terms and acronyms Normally Open Rectifier Fail AlarmNorthern Telecom Sense FailPage Part of Emerson Network Power