Emerson NT5C06D user manual Contents

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Contents
Introduction	11
Description	11
Applications	12
Equipment Identification	12
MPS75 NT5C10C(X)  power shelf (23-inch)	12
Helios Rectifier 25/48  NT5C06D(X) –48 V / 25 A Switch Mode Rectifier	13
Specifications	15
Electrical specifications	15
Output noise and ripple	16
Efficiency and Power Factor	16
Reliability	16
Heat Dissipation	16
Electromagnetic interference (EMI)	16
Environmental specifications	17
Operating	17
Transportation	17
Storage	17
Installation and start up	19
Tools and test equipment	19
Installing the power shelf	19
Wiring the power shelf	20
Installing the AC power	21
DC Conductors Installation	22
Control and Alarm Connections	23
Verification	28
Installing the rectifier	28
Factory setting	28
Rectifier meter accuracy	29
Start-up and verification	29
Slope Load Share	32

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 Tables List of ProceduresList of Figures ShelfThis page is left blank intentionally Description IntroductionApplications MPS75 NT5C10CX  power shelf 23-inchEquipment Identification MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables NT5C06D Switch Mode Rectifier Electrical specifications SpecificationsElectrical specifications Heat Dissipation Efficiency and Power FactorOutput noise and ripple ReliabilityTransportation Environmental specifications OperatingStorage Specifications Installing the power shelf Installation and start upTools and test equipment Procedure 1 Installing the power shelf Step Action Wiring the power shelfMax for each rectifier Installing the AC powerAC cable wire size AWG for each rectifierPower shelf individual AC connection DC Conductors InstallationConnecting the DC power shelf Control and Alarm ConnectionsRectifier 3 fail alarm Rectifier Failure AlarmRectifier 1 fail alarm Rectifier 2 fail alarmSense Fail AC Line Fail AlarmFan Alarm DC Circuit BreakerA0384387 SIG NAL Cables FRO M Shelves Factory setting Installing the rectifierVerification Rectifier meter accuracy Procedure 4 Starting up the rectifier StepHigh Voltage Shutdown Hvsd Adjustment Float Voltage Adjustment= 52.2 + .15 V = 52.35 Current Limit Verification CL Ii Forced ShareLoad Sharing Forced Load Share Load Share Adjustment ProcedureProcedure 5 Adjusting the load share Step Action Slope Load ShareOperation High voltage shutdown Hvsd local FeaturesFront panel controls Local float / equalize controlFan failure alarm Start-up delayIndicators Rectifier failure alarm RFARemote voltage sensing Sense fail alarm SEN FailLocal ON/OFF control AC breaker Remote ON/OFF controlParallel operation Sequential startDischarge of output capacitors Thermal shutdown Local / remote high voltage shutdown resetPower interface edge connector Input AC voltage monitorPower interface connections Signal interface connectorControl signal connections Procedure 6 Adjusting the float / equalize Step MaintenanceFloat / equalize Cooling fan High voltage shutdown HvsdFan failure Fan replacement NT5C06D rear view Power shelf This page is left blank intentionally Alarm indication RFA fault TroubleshootingSystem fault diagnosis Fault symptom Possible causes Fault symptom Possible causes SEN Fail faultErratic load fault Current or voltage float faultCPC Appendix a Replacement partsAppendix a Replacement parts Local toll-free prefixes Appendix B Technical service assistanceCountry Toll-free technical assistance numbers Appendix B Technical service assistanceUnited States Canada Europe Asia and the Pacific List of terms and acronyms Sense Fail Rectifier Fail AlarmNormally Open Northern TelecomPage Part of Emerson Network Power