Tripp Lite SU60KX manual Main Sequence NOK

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5 Troubleshooting (continued)

5.2Troubleshooting Flow Charts (continued)

5.2.2“MAIN SEQUENCE NOK”

This may occur during startup or if the customer changes their charger generation or main input source improperly.

Start

Is the main	N
input external wiring		Correct the wiring

correct?

Y
Is the main	N	Correct phase
input phase sequence		Correct phase
input phase sequence		rotation
correct?		rotation
correct?
Y
END

Fig 5.2.2a

101

Image 83

Contents Th Street, Chicago, IL 60609 USA Table of Contents KX Models Basic OperationTechnical Speciﬁcations SU40K SU60K SU60KTV SU80KTV KTV ModelsModel Capacity SU80K 80kVA/64kW SU80K ModelControl Panel Features FeaturesAdvanced Features 3a SU40KX front Front and Rear Panel Features3b 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 Manual Bypass Mode Single UPS Online Normal Mode Single UPSBattery Backup Mode Single UPS Auto Bypass Mode Single UPSAuto Bypass Mode Parallel UPS Online Mode Parallel UPSBattery Backup 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 DiagramTheory of Operation DC Auxiliary Power CircuitAuxiliary Power Failure Detection 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 Port02c Remote Emergency Power Off Repo02b 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 Front View of SU20KX and SU40KX Internal BatteryBattery Strings 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 2d W1 and W2 Cables 2e Connection between UPS and Battery Cabinet2f Wiring between UPS and Battery Cabinet 1a Warning Message List TroubleshootingAlarm Messages 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 module10a Battery Test FailBattery Over Charge 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.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