Emerson 200I/48-NT5C05C user manual This page is left blank intentionally

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52 Maintenance

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UM5C05C P0745680 Standard 6.00 October 2001

Emerson Energy Systems

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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 General information Purpose of this manualModels and mounting configurations Typical mounting in a cabinet or frameSpecifications Mechanical and electrical specificationsOperation specifications and ambient conditions Ambient conditions for the rectifier Operating ConditionsTransportation Storage conditionsAmbient conditions of a 1200 a cabinet Mechanical specifications of the NT6C43CB 1200 a cabinetOutput voltage Installation Mounting configurationsTools and test equipment Protecting the premisesPersonal safety and protecting the equipment Preventing damage caused by over-tighteningPreventing personal injury Optimizing the life of the equipmentProtecting against electrical shocks Installing in a frame Installing in a cabinetProcedure 1 Installing the rectifier in a frame Step Action Short circuit hazardProcedure 2 Installing a rectifier in a cabinet Step Action Anchoring the cabinetCabling and connecting Installing the rectifierConnecting the dc output terminals to the busbars Connecting ac to the rectifiers Electrical connections should meet standardsHazardous potentials Cabling ac the NT5C05CA / CB rectifiers Connecting ac to the rectifier NT5C05CC Connecting the control signals Controller NT NT6C25BA or NT6C25BBMonitoring 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 Monitoring and control circuits Output capacitorsDescription of the front panel Breakers DC circuit breaker AC breakerSwitches, controls and LEDs Front panel controls and LEDsCL current limit indicator FAN ALM fan failure alarmFront panel LEDs AC on ac voltage monitoringRFA rectifier failure alarm SEN Fail sense fail alarmLocal and remote adjustments and controls Hvsd high voltage shutdownRectifier input / output signals to the controller Switches DescriptionDesignation Description Volt / AMP digital meter switch Remote equalize control EQLRectifier parallel operation Slope sharing SLSForced sharing FS Local and remote Hvsd reset Remote HvsdSetting the start-up delay Switch Position Delay SECControl 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 Resetting the rectifier after an Hvsd high voltage shutdown RemotelyThis page is left blank intentionally Troubleshooting Diagnosing system faults Fault symptom Possible causesTroubleshooting Appendix a Replacement parts Part Number CPCAppendix 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