Tripp Lite SU60KX manual Bypass SCR Short-Circuit Detection, Scrst R

Page 38

2 Theory of Operation (continued)

2.8 Bypass SCR Short-Circuit Detection

Located at NH-SYS-FB board (Circuit for Bypass Back-Feed Detect)

 

 

 

RFB1

BKFD_R

 

CTFB1

 

R

RFB2

QFB1

 

 

 

 

 

CFA22

 

SCCT_R+

RFB7

DFB1

 

 

CFB18

 

S

 

CTFB2

RFB3

BKFD_S

 

 

 

 

 

RFB4

QFB2

 

 

 

 

CFA18

 

SCCT_S+

 

 

CNFB13

 

CFB19

RFB8

DFB2

1

BKFD_R

 

2

BKFD_S

 

 

 

3

BKFD_T

 

 

 

4

 

 

 

 

T

 

CTFB3

RFB5

BKFD T

 

 

 

 

 

RFB6

QFB3

 

 

 

 

CFA12

 

SCCT T+

 

 

 

 

CFB20

RFB9

DFB3

N

 

 

Located at NH-SYS-P board (Auxiliary Power for System, Detect Circuit for Voltage and Current)

+12VS

 

 

 

RP34

RP33

 

CP63

-12VS

G1

 

 

 

 

11

UP18A

 

 

2

BKFD_R

 

3

1

 

 

 

 

4

CP64

 

 

 

 

CP62

+12VS

G1

+12VS

 

RP86

 

 

 

 

RP88

RP87

-12VS

CP84

 

 

 

 

11

G1

 

 

UP20A

BKFD_S

 

2

 

 

1

 

 

3

 

 

 

 

 

4

 

 

CP67

+12VS

CP85 G1

 

 

RP98

+12VS

 

 

 

RP104

RP103

-12VS

CP74

 

 

11

G1

 

 

UP17A

BKFD_T

 

2

 

 

1

 

 

3

 

 

 

 

 

4

 

 

CP70

+12VS

 

 

 

RP117

CP75 G1

 

 

 

SCRST R

DP13

RP35

QP13

 

 

 

RP38

CP65

RP37

 

G1

 

 

 

SCRST_S

DP15

RP89

QP15

 

 

 

RP93

CP68

RP92

 

G1

 

 

 

SCRST_T

DP46

RP105

QP17

 

 

 

RP112

CP71

RP111

 

G1

 

Located at NH-SYS-M board (System MCU and Control Circuit)

5VS

RM48

RM52

RM56

5VS

RM57

RM65

5VS

RM66

SCRST_R

 

 

 

 

STShort_R

SCRST_S

 

 

 

 

CM26

(5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STShort_S

SCRST_T

CM29

(129)

 

STShort_T

CM33 (128)

G1

G1

G1

(a)During backup mode, bypass 3 SCRs should be off and zero current should be running through CTFB1, CTFB2 and CTFB3. If current is running through CTFB1, CTFB2 or CTFB3, then STShort_R (5), STShort_S (129) or STShort_T (128) will be low. The UPS will turn off its inverter to prevent back-feed voltage.

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Contents Th Street, Chicago, IL 60609 USA Table of Contents KX Models Basic OperationTechnical Specifications KTV Models SU40K SU60K SU60KTV SU80KTVSU80K Model Model Capacity SU80K 80kVA/64kWControl Panel Features FeaturesAdvanced Features Front and Rear Panel Features 3a SU40KX front3b SU40KX rear 3c SU40K front 3d SU40K rear 3e SU80K front 3f SU80K rear System Layout Internal Battery LayoutOperating Principles Opening and Closing the Unit Power Module Layout3a Power Module Block Diagram Auto Bypass Mode Single UPS Online Normal Mode Single UPSBattery Backup Mode Single UPS Manual Bypass Mode Single UPSAuto Bypass Mode Parallel UPS Online Mode Parallel UPSBattery Backup Mode Parallel UPS Manual Bypass Mode Parallel UPS Hot Standby Mode Parallel UPSPreliminary Checklist Single UPS Control Panel and Breaker DiagramsNormal LED Battery LED Bypass LED Fault LED Standard Start-Up Procedure Single UPSBattery Start-Up Procedure Single UPS Manual Bypass Procedure Single UPS Shutdown Procedure Single UPSPreliminary Checklist Parallel UPS Start-Up Procedure Parallel UPSShutdown Procedure Parallel UPS Manual Bypass Procedure Parallel UPS Switching from Manual Bypass to Normal Mode Parallel UPS Printed Circuit Boards PCB SU80KX SU60KX SU40KX SU80KTV SU20KXPCB Location System F3 FB M LA, LB, LC, LD Models LA, LB, LC LA, LB, LC, LD F1BYP F1MAIN F2BYP F2MAIN LCD PCB Location Power Module PCB Board Name Description1c SU40KX Block Diagram Block and Wiring Diagrams1a SU20KX Block Diagram KX ModelsTheory of Operation DC Auxiliary Power CircuitAuxiliary Power Failure Detection Output Current Detection W18Input Voltage Detection Located at NH-SYS-M board System MCU and Control CircuitOutput Voltage Detection Located at NH-SYS-M board System MCU and Control CircuitBattery Voltage Detection UP10BBypass SCR Short-Circuit Detection Scrst RBypass SCR Driver TSA1Watchdog for System MCU LCD Panel Control Circuit To LCDFan Control Circuit Located on NH-SYS-M board System MCU and Control CircuitBypass SCR Temperature Detection Communication Circuit for RS232RS232 Port Communication Circuit for SlotsCommunication Circuit for Output Dry Contact Output DRY ContactCommunication Circuit for Input Dry Contact and Repo Input DRY ContactExternal Battery Cabinet Temperature Detection EXTBTEMP1Detection Circuit for Manual Bypass Switch Detection Circuit for Output BreakerControl Circuit for Power Module CentralokTo PM1 to PM2 CM93 CM106 CM109 Control Circuit for External ParallelTheory of Operation 01 RS232 Port Emergency Power Off EPOCommunication 02a Front Control Panel02c Remote Emergency Power Off Repo02b Setting Eeprom on the NH-M Board Polling and Updating EepromCalibrating Eeprom Gain Setting Output Dry Contact Status Upgrading Firmware for the System Board Output Manual Bypass Main Input N C S T G R G I N G R a D E Communication Upgrading Firmware for the Power Module PM1 U P S T G R G I N Link the UPS to a PC via the RS232 port Communication Communication Communication T I N G L O W E D Downloading the Event Log Front View of SU20KX and SU40KX Internal BatteryBattery Strings Installing and Removing Internal Batteries Terminals Damage the UPS system and create a serious risk of personal Battery compartment. Warning Observe proper polarity byConnecting negative to negative black to black and positive Injury and property damageBattery Cabinet 2a BP480V26B 2b BP480V40CInternal Battery 2d W1 and W2 Cables 2e Connection between UPS and Battery Cabinet2f Wiring between UPS and Battery Cabinet 1a Warning Message List TroubleshootingAlarm Messages 1b Power Module Warning Message List ConditionTroubleshooting Flow Charts Main VOLT/FREQ NOKMain Sequence NOK Bypass VOLT/FREQ NOK Bypass Static Switch Over Temperature Bypass Sequence NOKBypass Static Switch Fault Bypass Static Switch OverloadSame fault message? Replace the power module UPS Internal Comm Abnormal10a Battery Test FailBattery Over Charge Battery BAD 11a 11bBypass FAN Failure 12a 12b 12cTransformer Overheat 13a 13bPS Output Volt NOK 14a 14bPS EXT Parallel Comm Abnormal 15a 15bParallel Failure 16a 16bRedundancy Loss 17aPower Module Failure Power Module Identify115 116 Power Module Replacement AC Input DC Input Output 119 120 UPS Procedure Preventive MaintenanceSafety Overview Suggested tools and suppliesInternal Battery Procedure Software Tools Appendix a Service Equipment and ToolsRecommended Equipment and Tools Multi-Meter OscilloscopeTable B.1 Appendix B Torque TableKX Models Fig B.aTable B.3 ModelsTable B.2 Fig B.b Fig B.c Fig B.d KTV ModelsTable B.4 NH-SYS-R Board Appendix C PCB and Test PointNH-SYS-P Board
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