Emerson NT5C06D user manual List of terms and acronyms

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9. List of terms and acronyms

ALM	Alarm
BAT	Battery
BAT RTN	Battery Return
C	Common
CL	Current Limit
CS	Current Share
EMI	Electromagnetic Interference
EQL	Equalize
FAN ALM	Fan Alarm
FLT	Float
FR GND	Frame Ground
FS	Forced Load Share
HVSD	High Voltage Shutdown
HVSDR	High Voltage Shutdown Reset
LED	Light Emitting Diode
LVA	Low Voltage Alarm
LVD	Low Voltage Disconnect
LVDR	Low Voltage Disconnect/Reconnect
MPA	Modular Power Adapter
MPL	Modular Power Low Voltage Disconnect
MPR	Modular Power Rectifier
MPS	Modular Power Shelf
MTBF	Mean Time Between Failures
NC	Normally Closed

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 IntroductionEquipment Identification MPS75 NT5C10CX  power shelf 23-inchApplications MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables NT5C06D Switch Mode Rectifier Electrical specifications SpecificationsElectrical specifications Output noise and ripple Efficiency and Power FactorReliability Heat DissipationStorage Environmental specifications OperatingTransportation Specifications Tools and test equipment Installation and start upInstalling the power shelf 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 Verification Installing the rectifierFactory setting High Voltage Shutdown Hvsd Adjustment Procedure 4 Starting up the rectifier StepFloat Voltage Adjustment Rectifier meter accuracy= 52.2 + .15 V = 52.35 Load Sharing Ii Forced ShareCurrent Limit Verification CL 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 sensingDischarge of output capacitors Sequential startParallel operation Power interface edge connector Local / remote high voltage shutdown resetInput AC voltage monitor Thermal shutdownPower interface connections Signal interface connectorControl signal connections Float / equalize MaintenanceProcedure 6 Adjusting the float / equalize Step Fan failure High voltage shutdown HvsdCooling fan Fan replacement NT5C06D rear view Power shelf This page is left blank intentionally System fault diagnosis Fault symptom Possible causes TroubleshootingAlarm indication RFA fault Erratic load fault SEN Fail faultCurrent or voltage float fault Fault symptom Possible causesCPC Appendix a Replacement parts Appendix a Replacement parts Country Appendix B Technical service assistanceLocal toll-free prefixes United States Canada Europe Asia and the Pacific Appendix B Technical service assistanceToll-free technical assistance numbers List of terms and acronyms Normally Open Rectifier Fail AlarmNorthern Telecom Sense FailPage Part of Emerson Network Power