Tripp Lite Find Comprehensive Troubleshooting and Hardware Information for SU-Series Power Supplies
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SU-Series 3-Phase UPS Hardware: Introduction and Troubleshooting

1111 W. 35th Street, Chicago, IL 60609 USA

+1.773.869.1234 • www.tripplite.com

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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 Battery Backup Mode Single UPS Online Normal Mode Single UPSAuto Bypass Mode Single UPS Manual 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 UPSNormal LED Battery LED Bypass LED Fault LED Control Panel and Breaker DiagramsPreliminary Checklist Single UPS Standard Start-Up Procedure 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 Module1a SU20KX Block Diagram Block and Wiring Diagrams1c SU40KX Block Diagram KX ModelsAuxiliary 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 Communication Emergency Power Off EPO01 RS232 Port 02a Front Control Panel02b 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 Connecting negative to negative black to black and positive Battery compartment. Warning Observe proper polarity byDamage the UPS system and create a serious risk of personal Injury and property damage2a 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 Safety Overview Preventive MaintenanceUPS Procedure Suggested tools and suppliesInternal Battery Procedure Recommended Equipment and Tools Appendix a Service Equipment and ToolsSoftware Tools Multi-Meter OscilloscopeKX Models Appendix B Torque TableTable B.1 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
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