Emerson NT5C06D Remote Equalize, Sensing Positive, Sensing Negative, Fan Failure, Current Share

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24 Installation and start-up

Table 5 - Rectifier and Controller interface connections (8-pin connectors)

Pin #

Design.

Description

Signal

1

EQL

Remote Equalize

BAT RTN

2

RG+

Sensing Positive

BAT RTN

3

RC-

Sensing Negative

-48V

4

FAN ALM

Fan Failure

BAT RTN

5

HVSDR

Remote High Voltage Shutdown Reset

BAT RTN

6

HVSD

Remote High Voltage Shutdown

BAT RTN

7

RFA

Rectifier Failure Alarm

BAT RTN

8

TB

Temporary Release

BAT RTN

Note: Both RFA and Fan alarm relays are energized during normal operation and are de-energized during an alarm condition.

Table 6 - Rectifier and Controller interface connections (26-pin connector)

Pin #

Designation

Description

Signal

1

RC1 -

Sensing Negative rect (1)

BAT-

2

RFA1 (NC)

Rectifier (1) fail alarm

NC

3

TR1

Temporary Release Rect (1)

Bat RTN

4

SH1+

Shunt Positive Rect (1)

50 mV

5

SH1-

Shunt Negative Rect (1)

50 mV

6

RC2-

Sensing Negative Rect (2)

BAT-

7

RFA2 (NC)

Rectifier (2) fail alarm

NC

8

TR2

Temporary Release Rect (2)

Bat RTN

9

SH2+

Shunt Positive Rect (2)

50 mV

10

SH3-

Shunt Negative Rect (3)

50 mV

11

RC3-

Sensing Negative Rect (3)

BAT-

12

RFA3 (NC)

Rectifier (3) fail alarm

NC

13

TR3

Temporary Release Rect (3)

Bat RTN

14

SH3+

Shunt Positive Rect (3)

50 mV

15

SH3-

Shunt Negative Rect (3)

50 mV

16

CUR SHARE

Current Share

0 - 12VDC

17

RFA (C)

Rectifier Fail Alarm

Common

18

ALM COMMON

Alarms Common

Common

19

EQL

Remote Equalize

BAT RTN

20

RG+

Sensing Positive

BAT RTN

21

HVSDR

Remote High Voltage Shutdown Reset

BAT RTN

22

HVSD

Remote High Voltage Shutdown

BAT RTN

 

 

continued

 

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

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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 DescriptionMPS75 NT5C10CX  power shelf 23-inch ApplicationsEquipment Identification MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables NT5C06D Switch Mode Rectifier Specifications Electrical specificationsElectrical specifications Efficiency and Power Factor Output noise and rippleReliability Heat DissipationEnvironmental specifications Operating TransportationStorage Specifications Installation and start up Installing the power shelfTools 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 Installing the rectifier Factory settingVerification Procedure 4 Starting up the rectifier Step High Voltage Shutdown Hvsd AdjustmentFloat Voltage Adjustment Rectifier meter accuracy= 52.2 + .15 V = 52.35 Ii Forced Share Current Limit Verification CLLoad 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 sensingSequential start Parallel operationDischarge 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 Maintenance Procedure 6 Adjusting the float / equalize StepFloat / equalize High voltage shutdown Hvsd Cooling fanFan failure Fan replacement NT5C06D rear view Power shelf This page is left blank intentionally Troubleshooting Alarm indication RFA faultSystem 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 Appendix B Technical service assistance Local toll-free prefixesCountry Appendix B Technical service assistance Toll-free technical assistance numbersUnited 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