Emerson 200I/48-NT5C05C user manual Functional description, Overview Input circuit, Output circuit

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4. Functional description

4.1.Overview

4.1.1.Input circuit

The input circuit offers the following characteristics :

•ac rectifying

•EMI filtering

•inrush current limiting, a walk-in circuit limits the output current rise to 25 A per second

•low and high ac inhibit

•power factor compensation

•surge voltage protection

•ac breaker for input protection

For all input and output conditions specified in this manual, when the rectifier is turned on, the ac current will not exceed the maximum steady- state value.

4.1.2.Output circuit

The output circuit offers the following characteristics :

•shunt for output dc current sensing

•225 A dc circuit breaker for output protection

Emerson Energy Systems

Rectifier 200I/48 NT5C05C Installation and User Manual

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Contents Helios Modular Switch Mode Rectifier 200I/48 NT5C05C Page Emerson Energy Systems Page Publication history This page is left blank intentionally Contents List of Figures List of ProceduresList of Tables Ac female plug in a 1200 a cabinet This page is left blank intentionally Purpose of this manual General informationTypical mounting in a cabinet or frame Models and mounting configurationsMechanical and electrical specifications SpecificationsOperation specifications and ambient conditions Storage conditions Ambient conditions for the rectifier OperatingConditions TransportationAmbient conditions of a 1200 a cabinet Mechanical specifications of the NT6C43CB 1200 a cabinetOutput voltage Protecting the premises InstallationMounting configurations Tools and test equipmentOptimizing the life of the equipment Personal safety and protecting the equipmentPreventing damage caused by over-tightening Preventing personal injuryProtecting against electrical shocks Short circuit hazard Installing in a frameInstalling in a cabinet Procedure 1 Installing the rectifier in a frame Step ActionAnchoring the cabinet Procedure 2 Installing a rectifier in a cabinet Step ActionInstalling the rectifier Cabling and connectingConnecting the dc output terminals to the busbars Electrical connections should meet standards Connecting ac to the rectifiersHazardous potentials Cabling ac the NT5C05CA / CB rectifiers Connecting ac to the rectifier NT5C05CC Controller NT NT6C25BA or NT6C25BB Connecting the control signalsMonitoring of the shunt current Pin assignment for connectors J7 to J12Function Input/ Output Pin assignment for connector J13 Function Overview Input circuit Functional descriptionOutput circuit AC breaker Monitoring and control circuitsOutput capacitors Description of the front panel Breakers DC circuit breakerFront panel controls and LEDs Switches, controls and LEDsAC on ac voltage monitoring CL current limit indicatorFAN ALM fan failure alarm Front panel LEDsHvsd high voltage shutdown RFA rectifier failure alarmSEN Fail sense fail alarm Local and remote adjustments and controlsRectifier input / output signals to the controller Switches DescriptionDesignation Description Remote equalize control EQL Volt / AMP digital meter switchSlope sharing SLS Rectifier parallel operationForced sharing FS Remote Hvsd Local and remote Hvsd resetSwitch Position Delay SEC Setting the start-up delayControl signals on connector P1 Start up delay DIP switchRemote on / OFF control TR CB OFF NC This page is left blank intentionally Standard settings for the rectifier Parameter Setting Standard settingsOperation Procedure 9 Starting up the rectifier Step Action Starting up and adjustingAdjusting the high voltage shutdown Hvsd Adjusting the slope share Adjusting the equalize voltage EQLVerifying the current limit Adjusting the forced load sharing Replacing the air filter MaintenanceReplacing the fan unit Preventing short circuits Calibrating the Volt / Amp MultimeterRe-assembling Remotely Resetting the rectifier after an Hvsd high voltage shutdownThis page is left blank intentionally Diagnosing system faults Fault symptom Possible causes TroubleshootingTroubleshooting Part Number CPC Appendix a Replacement partsAppendix a Recommended Replacement Parts Local toll-free prefixes Appendix B Technical service assistanceCountry Prefix United States Canada Europe Asia and the Pacific Toll-free technical assistance numbersCaribbean and Latin America Middle-East Cala Abbreviations and acronyms RFA Page Helios Modular Switch Mode Rectifier 200I/48 NT5C05C