Tripp Lite SU60KX manual Output Current Detection, W18

Page 34

2 Theory of Operation (continued)

2.4 Output Current Detection

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

(W18)

CNP11

1

2

OPCT_R-

RP121

OPCT_R+

OPCT_R-

RP125

OPCT_R+

RP120

RP122

RP124

RP130

	CP25
	RP119
		CP26
	-12VS	G1
	11
	2	1
	3	1	IoutR
			IoutR

CP89	UP19A
RP1264	CP90
	CP90
+12VS	G1

(W19)

CNP12

1

2

OPCT_S-

RP137

OPCT S+

OPCT S-

RP141

OPCT S+

RP135

RP138

RP140

RP146

G1

	CP91
	RP136
	9	8
	10	8	IoutS
			IoutS

CP92	RP142	UP19C
	RP142

G1

(W20)

CNP13

1

2

OPCT T-

RP150

OPCT T+

OPCT T-

RP156

OPCT T+

RP147

RP151

RP155

RP158

CP94

	CP93
	RP148
	13	14
	12	14	IoutT
			IoutT

UP19D

RP157

G1

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

5VS 2

RM25

IoutRRM33 3

CM22

1

G1

	5VS
	2
RM44
DM3
IoutSRM47	3
Iout_R
(101)

CM25

1

G1

5VS
	2
RM58
DM7
IoutTRM61	3
Iout_S
(103)
CM30
G1	1
G1

DM13

Iout_T

(90)

(a)Connectors CNP11, CNP12 and CNP13 connect to 3 Output CT individually.

(b)MCU detects 3-phase output currents through Iout_R (101), Iout_S (103) and Iout_T (90). The output current could be bypass current or in- verter current, depending on the operation mode.

52

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Contents Th Street, Chicago, IL 60609 USA Table of Contents Technical Speciﬁcations Basic OperationKX Models KTV Models SU40K SU60K SU60KTV SU80KTVSU80K Model Model Capacity SU80K 80kVA/64kWAdvanced Features FeaturesControl Panel Features Front and Rear Panel Features 3a SU40KX front3b SU40KX rear 3c SU40K front 3d SU40K rear 3e SU80K front 3f SU80K rear Operating Principles Internal Battery LayoutSystem Layout 3a Power Module Block Diagram Power Module LayoutOpening and Closing the Unit Auto Bypass Mode Single UPS Online Normal Mode Single UPSBattery Backup Mode Single UPS Manual Bypass Mode Single UPSBattery Backup Mode Parallel UPS Online Mode Parallel UPSAuto Bypass 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 ModelsAuxiliary Power Failure Detection DC Auxiliary Power CircuitTheory of Operation 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 Panel02b Remote Emergency Power Off Repo02c 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 Battery Strings Internal BatteryFront View of SU20KX and SU40KX 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 2f Wiring between UPS and Battery Cabinet 2e Connection between UPS and Battery Cabinet2d W1 and W2 Cables Alarm Messages Troubleshooting1a Warning Message List 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 AbnormalBattery Over Charge Battery Test Fail10a 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.2 ModelsTable B.3 Fig B.b Fig B.c Table B.4 KTV ModelsFig B.d NH-SYS-P Board Appendix C PCB and Test PointNH-SYS-R Board