Emerson MPR25, MPR15 Series user manual Procedure 11 Rectifier power-up Step

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Installation and start-up procedures 61

Rectifier power-up

If the factory set voltage limits need to be modified or verified, open the sense leads of all the rectifier positions to be turned on:

•by disconnecting a quick disconnect tab of TB-1 on the power shelf

or

•by removing the controller sense fuse (system application) or

•by setting the dip switches to the OFF position (system application)

Then refer to the appropriate section for Float Voltage, HVSD or Equalize adjustments (see User Manual 167-7011-010 Voltage Level Limits for Power Plants, Rectifiers and Controllers).

If no change is needed continue with the parallel verification procedure.

Note: Quick disconnect tab TB1 is located on the right end side of the shelf and can be accessed by removing the front cover (see Figure 24). For system applications, refer to the appropriate system procedure guide for the fuse or dip switch location.

Procedure 11 - Rectifier power-up

Step

Action

1Verify that the DC and AC rectifier circuit breakers are in the OFF position.

2If no change is needed continue with the “Parallel verification” procedure found further in this chapter.

3Turn ON the main AC feed.

4Turn ON the AC circuit breaker of one rectifier; the rectifier will provide voltage on the front panel test point terminals.

–end–

Note: If the rectifier does not provide voltage, check inrush fuse F1. If the no voltage status remains, refer to the appropriate troubleshooting section.

25A Switch Mode RectifierNT5C06B / C Installation and User Manual

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Contents NT5C06B/C 25A Switch Mode RectifierPage Part of Emerson Network Power Page Publication history October 1 February 15Contents Contents Inrush current limiting fuse F1 Low voltage disconnect 101105 List of FiguresList of Tables Rectifier AC and DC power internal cabling harnessList of Procedures About this manual Safety precautionsPurpose of this manual How this manual is organizedThis page is left blank intentionally Applications IntroductionRectifier models Rectifier feature summaryNT5C06B/C models Mechanical SpecificationsElectrical Rectifier voltage and current MPR15/MPR25 input current requirementsOutput noise and ripple Output voltageAcoustical noise Efficiency and power factorReliability Heat dissipationStorage TransportationRectifier operation OperationDisplay and rear interface Indicator lampsLocal float / equalize control Fan failure alarm Rectifier failure alarm RFAInternal high voltage shut down Hvsd Local ON/OFF control DC and optional AC breakersTest points V+ Fan cooling assemblyCurrent meter Fan filter optionPower interface edge connector Signal connectorFeatures Operating features Remote voltage sensingAC inrush current Monitoring features Input AC voltage monitorSequential start Parallel operationControl features Remote ON/OFF control Measurement features Remote rectifier current measurementOutput current monitor Remote high voltage shutdownSignal connections Local/remote high voltage shutdown resetRemote equalize control Signal Connector Rectifier and controller interface connections Designation Description SignalPower shelf Features MPS75S MPS75E MPS50S MPS50E Power Shelf Feature SummaryPEC Code Color Modular power shelf embedded application signal availabilityWhen used with an RPM1000C, order P0736447 Modular power shelf system application signal availability List of abbreviations used in Tables 6 19-inch power shelf front view23-inch power shelf front view Electrical Power shelf NT5C10BM e/w EQL switch assemblyOutput current One rectifier Environmental Installation procedure Installation and start-up proceduresTools and test equipment 19-inch power shelf 19-inch power shelf NT5C10BF and NT5C10BP only Cabling the power shelfInch embedded shelf NT5C10BF-1 and NT5C10BP Shelf configuration Inch system shelf NT5C10CA-1/2Inch embedded shelf NT5C10BA-1/2 Inch embedded shelf NT5C10BA-3/4Inch embedded shelf NT5C10BB-1/2 Inch embedded shelf NT5C10BA-5/6,NT5C10BB-3/4Inch embedded shelf NT5C10BC-1/2 Inch embedded shelf NT5C10BM Inch embedded shelf NT5C10BC-3, NT5C10BD-3Inch embedded shelf NT5C10BL Inch embedded shelf NT5C10BJ, NT5C10BKInch system shelf NT5C10CO Procedure 2 Common bussed AC connection side access StepP0711722 Procedure 4 Individual AC connection-side access Step Embedded shelf left view Individual AC side accessProcedure 5 Individual AC connection side access Step System or embedded shelf left view individual AC side accessInstallation and start-up procedures Procedure 7 DC connection side access Step Procedure 8 DC connection rear access Step Power plant interface signal cablingDesignation Description Signal Standard system application signal cable connectionsNT5C10BJ & NT5C10BK NT5C10BA-3/4 special operating signal AC fail NCNT5C10BM Installing the rectifier Operating voltage Cabling the rectifierLVD installation in the shelf Embedded shelf LVD connections side access Start-up procedure Factory set voltage limitsProcedure 11 Rectifier power-up Step Rectifier power-upRe-adjust if needed return to step Hvsd adjustmentDesired Hvsd level Float voltage on the test pointsEqualize voltage adjustment Float voltage adjustmentProcedure 13 Float voltage adjustment Step Procedure 14 Equalize voltage adjustment StepParallel verification Low voltage disconnect LVD Procedure 16 Low voltage disconnect adjustment Step Action Adjustment for the 50 a LVD unit Rel , 02A, 3 & 3ALVD/low voltage disconnect / reconnect Lvdr adjustment Low voltage alarm LVA adjustmentProcedure 18 Low voltage alarm adjustment Step Rectifier replacement/add-on procedure Low voltage disconnect DC cabling Control and monitoring signalsOperation Test featureThis page is left blank intentionally Maintenance Rectifier MaintenanceProcedure 20 Float/equalize and remote equalize Step Action Filter Power shelfFan cooling Low voltage disconnect Troubleshooting Rectifier fail alarmProcedure 21 Fan replacement Step Fan replacement procedureFan failure End Fan assembly Symptom Possible cause Fault diagnosisThis page is left blank intentionally References System application power shelf MPS50S and MPS75SEmbedded application power shelf MPS50E and MPS75E Low voltage disconnect Embedded application Brown Embedded application Oxford greySystem application Brown System application Dolphin greyNT5C10BA-5/6 and NT5C10BB-1/2, 3/4 embedded application NT5C10BA-1/2 embedded application NT5C10BA-3/4 embedded application NT5C10BD embedded application NT5C10BD and NT5C10BP embedded application To First References RPM Unit JE1 To RFA COM of Office Alarm Circuit JE2 JE1 PE1 P0711722 To -48VDC Output Embedded application NT5C10BL Embedded application NT5C10BM e/w NT5C10KB System application NT5C10CO Application NT5C06B/C This page is left blank intentionally Purpose Appendix a NT5C10BF-1 and NT5C10BPApplication Ftip applicationPower and signal lead termination AlarmsFactory set voltage limits Ftop application Main/standby Application configuration table Rectifier FunctionShelf labeling General requirements Power shelf sizeAppendix B NT5C10CO shelf NT5C10CO power shelf DescriptionGeneral 105Technical specifications Procedure 22 Power-up and verification Step Action Power-up and verification VerificationProcedure 23 Adjustment and verification Step Adjustment and verificationPosition is lit Procedure 23 Adjustment and verification Step ActionOpen Closed Systems equipped with NT5C10CO power shelf fault diagnosis TroubleshootingThis page is left blank intentionally 113 Appendix C Recommended replacement partsAppendix C Recommended replacement parts Local toll-free prefixes Appendix D Technical service assistance115 CountryUnited States Canada Europe Asia and the Pacific Toll-free technical assistance numbers117 Abbreviations and acronymsAbbreviations and acronyms Page 25A Switch Mode Rectifier

MPR15 Series, MPR25 specifications

The Emerson MPR25 and MPR15 series are advanced pressure regulators designed for precise control and performance in various industrial applications. Known for their durability and reliability, these regulators are ideal for both gas and liquid control systems, ensuring consistent operation across a wide range of conditions.

One of the main features of the MPR series is its innovative design that utilizes a robust diaphragm mechanism. This mechanism provides a high degree of sensitivity and response time, allowing for quick adjustments and ensuring accurate pressure regulation. The regulators are available in different pressure ranges, making them versatile for various processes and systems.

The MPR25 series typically caters to applications requiring higher flow capacities. It boasts an extensive flow capacity with less pressure drop, making it suitable for demanding environments where maintaining system efficiency is crucial. This series is often used in applications such as gas distribution systems, instrumentation, and chemical processing.

On the other hand, the MPR15 series is designed for lower flow applications, providing precise pressure control in compact spaces. Despite its smaller size, it maintains excellent performance, featuring low droop characteristics that allow for consistent pressure output even with varying flow rates.

Both series incorporate advanced materials and sealing technologies to enhance their durability and resistance to harsh operating conditions. The body is commonly made from high-grade materials that ensure resistance to corrosion, allowing for longer service life and reduced maintenance needs. Additionally, the regulators feature easy-to-adjust set points, enabling operators to quickly adapt to changing process requirements.

Furthermore, the MPR25 and MPR15 series regulators are designed with safety in mind. They include built-in safety features to prevent over-pressurization, enhancing system protection and operator safety. The design also allows for easy installation and servicing, contributing to lower operational costs over time.

In summary, the Emerson MPR25 and MPR15 series pressure regulators stand out for their precision, durability, and efficiency. With their advanced diaphragm mechanism, robust construction, and user-friendly features, they meet the needs of a diverse range of industrial applications, ensuring reliable operation in every environment. Whether for high-demand or compact applications, these regulators are an excellent choice for maintaining the integrity and performance of pressure control systems.
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