Emerson NT5C06D user manual Control signal connections

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40 Operation

Figure 11 - Control signal connections

1

25

1- REMOTE EQL

2- SENSING RG +

3- SENSING RC -

4- TEMPORARY RELEASE

5- REMOTE HVSD RESET

6- REMOTE HVSD

7- RFA NC

8- Not Connected

9- FAN ALARM NC

10- RFA COMMON

11- FAN ALARM COMMON

12- SHUNT +

13- SHUNT -

14- FAN ALARM NO

15- RFA NO

16- GROUND

17- SENSE COMMON

18- SENSE NC

19- SENSE NO

20- Not Connected

21- Not Connected

22- Not Connected

23- Not Connected

24- Not Connected

25- Not Connected

UM5C06D ( 169-2071-504 ) P0831010 Standard 7.00 May 2001

Image 40

Contents Helios Rectifier 25/48 Single Phase -48V, 25 a P0831010 Standard 7.00 MayPage Helios Rectifier 25/48 Single Phase -48V, 25A Page Publication history This page is left blank intentionally Contents Contents List of Procedures List of FiguresShelf List of TablesThis page is left blank intentionally Introduction DescriptionApplications 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 Efficiency and Power Factor Output noise and rippleReliability Heat DissipationTransportation Environmental specifications OperatingStorage Specifications Installing the power shelf Installation and start upTools and test equipment Wiring the power shelf Procedure 1 Installing the power shelf Step ActionInstalling the AC power AC cable wire sizeAWG for each rectifier Max for each rectifierDC Conductors Installation Power shelf individual AC connectionControl and Alarm Connections Connecting the DC power shelfRectifier Failure Alarm Rectifier 1 fail alarmRectifier 2 fail alarm Rectifier 3 fail alarmAC Line Fail Alarm Fan AlarmDC Circuit Breaker Sense FailA0384387 SIG NAL Cables FRO M Shelves Factory setting Installing the rectifierVerification Procedure 4 Starting up the rectifier Step High Voltage Shutdown Hvsd AdjustmentFloat Voltage Adjustment Rectifier meter accuracy= 52.2 + .15 V = 52.35 Current Limit Verification CL Ii Forced ShareLoad Sharing Load Share Adjustment Procedure Procedure 5 Adjusting the load share Step ActionSlope Load Share Forced Load ShareOperation Features Front panel controlsLocal float / equalize control High voltage shutdown Hvsd localStart-up delay IndicatorsRectifier failure alarm RFA Fan failure alarmSense fail alarm SEN Fail Local ON/OFF control AC breakerRemote ON/OFF control Remote voltage sensingParallel operation Sequential startDischarge of output capacitors Local / remote high voltage shutdown reset Power interface edge connectorInput AC voltage monitor Thermal shutdownSignal interface connector Power interface connectionsControl 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 SEN Fail fault Erratic load faultCurrent or voltage float fault Fault symptom Possible causesAppendix a Replacement parts CPCAppendix 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 Rectifier Fail Alarm Normally OpenNorthern Telecom Sense FailPage Part of Emerson Network Power