Tripp Lite SU60KX manual Bypass SCR Temperature Detection, Communication Circuit for RS232

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2 Theory of Operation (continued)

2.13 Bypass SCR Temperature Detection

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

5VREF

RM76 RM77

RM79

+12VS

4	UM7B

	6		7
	5	2	7
STS_TH-		2

RM87	11
	CM49

G1

G1

		5VS
	2
		DM23
RM84	3	HS_TEMP
		HS_TEMP
CM48		(105)
CM48
	1	G1
		G1

Located on NH-SYS-S or NH-SYS-SA board (Driver Circuit for Bypass SCR)

CNSA6

1 5VREF

2 STS TH-

CON2(2.54)

(a)Temperature sensor (NTC) is screwed onto the heat-sink of bypass SCR and connected to CNSA6 on the NH-SYS-S or SA board.

(b)MCU detects the temperature via HS TEMP (105).

2.14Communication Circuit for RS232

Located on NH-SYS-R board (Circuit for RS232, Output Dry Contact, Parallel Port, Connector to connect with each Power Module, Circuit for 2 Slots)

RR26

5VS

#TX_232

QR4

RR33 G

RR37

RR43

5VS

#RX_232

+12VSF

CR21G4

232_RX

1	UR15	7 8	RR31
2	UR15	6	RR31
			+12VSF
3		5	-12VSF
D			-12VSF
D			RR118
4			RR118
S			RR38
G1 CR27		5VS	RR38
G1 CR27		5VS	+12VSF

G1	8 7	1
	6	UR20	2	232_TX
	6		2

	5		3	RR44
G1			D
G1		4	QR5	G
				G
			S	RR47

			5
			9
	G4		9
	G4		4
			8
232_TX			3
			3
			7
232_RX			2
			2
			6
			1

CNR6

RS232 Port

G4

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

(23) TX_232

(24) RX_232

(a)System MCU TX_232 (23) transmits data via RS232 port.

(b)System MCU RX_232 (24) receives data via RS232 port.

RM107

#TX_232

CM58

RM111 G1

#RX_232

CM62

G1

61

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Contents Th Street, Chicago, IL 60609 USA Table of Contents Technical Speciﬁcations Basic OperationKX Models SU40K SU60K SU60KTV SU80KTV KTV ModelsModel Capacity SU80K 80kVA/64kW SU80K ModelAdvanced Features FeaturesControl Panel Features 3a SU40KX front Front and Rear Panel Features3b 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 Manual Bypass Mode Single UPS Online Normal Mode Single UPSBattery Backup Mode Single UPS Auto Bypass Mode Single UPSBattery Backup Mode Parallel UPS Online Mode Parallel UPSAuto Bypass Mode Parallel UPS Hot Standby Mode Parallel UPS Manual Bypass Mode Parallel UPSStandard Start-Up Procedure Single UPS Control Panel and Breaker DiagramsNormal LED Battery LED Bypass LED Fault LED Preliminary Checklist Single UPSBattery Start-Up Procedure Single UPS Shutdown Procedure Single UPS Manual Bypass Procedure Single UPSStart-Up Procedure Parallel UPS Preliminary Checklist Parallel UPSShutdown Procedure Parallel UPS Manual Bypass Procedure Parallel UPS Switching from Manual Bypass to Normal Mode Parallel UPS SU80KX SU60KX SU40KX SU80KTV SU20KX Printed Circuit Boards PCBPCB Location System F3 FB M LA, LB, LC, LD Models LA, LB, LC LA, LB, LC, LD F1BYP F1MAIN F2BYP F2MAIN LCD PCB Board Name Description PCB Location Power ModuleKX Models Block and Wiring Diagrams1a SU20KX Block Diagram 1c SU40KX Block DiagramAuxiliary Power Failure Detection DC Auxiliary Power CircuitTheory of Operation W18 Output Current DetectionLocated at NH-SYS-M board System MCU and Control Circuit Input Voltage DetectionLocated at NH-SYS-M board System MCU and Control Circuit Output Voltage DetectionUP10B Battery Voltage DetectionScrst R Bypass SCR Short-Circuit DetectionTSA1 Bypass SCR DriverWatchdog for System MCU To LCD LCD Panel Control CircuitLocated on NH-SYS-M board System MCU and Control Circuit Fan Control CircuitCommunication Circuit for RS232 Bypass SCR Temperature DetectionCommunication Circuit for Slots RS232 PortOutput DRY Contact Communication Circuit for Output Dry ContactInput DRY Contact Communication Circuit for Input Dry Contact and RepoEXTBTEMP1 External Battery Cabinet Temperature DetectionDetection Circuit for Output Breaker Detection Circuit for Manual Bypass SwitchCentralok Control Circuit for Power ModuleTo PM1 to PM2 CM93 Control Circuit for External Parallel CM106 CM109Theory of Operation 02a Front Control Panel Emergency Power Off EPOCommunication 01 RS232 Port02b Remote Emergency Power Off Repo02c Polling and Updating Eeprom Setting Eeprom on the NH-M BoardCalibrating 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 Injury and property damage Battery compartment. Warning Observe proper polarity byConnecting negative to negative black to black and positive Damage the UPS system and create a serious risk of personal2a BP480V26B 2b BP480V40C Battery CabinetInternal 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 Condition 1b Power Module Warning Message ListMain VOLT/FREQ NOK Troubleshooting Flow ChartsMain Sequence NOK Bypass VOLT/FREQ NOK Bypass Sequence NOK Bypass Static Switch Over TemperatureBypass Static Switch Overload Bypass Static Switch FaultUPS Internal Comm Abnormal Same fault message? Replace the power moduleBattery Over Charge Battery Test Fail10a 11a 11b Battery BAD12a 12b 12c Bypass FAN Failure13a 13b Transformer Overheat14a 14b PS Output Volt NOK15a 15b PS EXT Parallel Comm Abnormal16a 16b Parallel Failure17a Redundancy LossFailure Power Module Identify Power Module115 116 Power Module Replacement AC Input DC Input Output 119 120 Suggested tools and supplies Preventive MaintenanceSafety Overview UPS ProcedureInternal Battery Procedure Multi-Meter Oscilloscope Appendix a Service Equipment and ToolsRecommended Equipment and Tools Software ToolsFig B.a Appendix B Torque TableKX Models Table B.1Table 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