Eaton Power Xpert Solar 1500 User Manua

Troubleshooting44 Power Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.comFaults and Warning Actions and ResolutionTable 10. Fault and Warning Types: Actions and ResolutionFault Type/Category Actions and ResolutionsCRITICAL FAULT CRITICAL FAULTS will stop the inverter and isolate it from both AC and DC (PV).■ Opens the Stack’s Output contactors (K8, K9, K10)■ Opens the Main AC breaker (CB1)■ Opens the stacks’ DC disconnects (DS1, DS2, DS3).A CRITICAL FAULT will not automatically retry and can only be re-set by the following manualintervention methods. From the HMI;■ Disable the inverter via the first screen of the Operation menu: Press .■ Re-close the Disconnects DS1-2-3 via the Charge Request on the menu.❑ This restores the photovoltaic connection to the inverter stacks.❑ The inverter’s control power, CB2, does not have to be re-cycled■ the inverter following the completion of the pre-charge procedure.❑ Re-starting the inverter issues a “Clear CRITICAL FAULT” condition to the inverter.❑ Note that the underlying condition(s) originally causing the CRITICAL FAULT must be remedied.❑ For the signals having both open and closed feedback, the intent is to detect wiring errors orloose wires. These are classified as CRITICAL, as a solution cannot be fixed without physicalpresence at the inverter.FAULT A FAULT will stop the inverter and isolate it from the AC.■ Opens the Stack’s Output contactors (K8, K9, K10)■ Opens the Main AC breaker (CB1)❑ DC disconnects remain closed (DS1, DS2, DS3)Fault will not be automatically retry and can only be re-started by the following manual interventionmethods. From the HMI;■ Attempt to clear the fault by the Fault Reset function of the HMI❑ If the fault does not re-set (clear), re-check the underlying causeAlternatively;■ Disable the inverter via the first screen of the Operation menu: Press .■ the inverter following the completion of the pre-charge procedure.❑ The inverter’s control power, CB2, does not have to be cycled❑ Re-Starting the inverter issues a “Clear Fault” condition to the inverter.❑ Note that the underlying condition(s) originally causing the fault must be remedied.■ A non-critical fault may be reset locally or via SCADA controller (if the unit is being controlled viaan interconnect-approved external SCADA system.)W R FWarning becomes a FaultA WARNING that can potentially develop into either category of FAULTS whenever the warning is notcleared (corrected) before the retry attempts is reached.■ The inverter will automatically attempt to clear the warnings and resume operation for 600 times(10 hours), unless otherwise noted.■ Upon the warning, the inverter will stay in sleep mode for at minimum the “Retry Time” of 60seconds.❑ Output contactors open (K8, K9, K10)■ AC breaker remains closed❑ Main AC breaker (CB1) remains closed■ DC disconnects remain closed❑ DC disconnects remain closed (DS1, DS2, DS3)Alternatively;■ Re-Enabling the inverter issues a “Clear Warning” condition to the inverter.❑ Note that the underlying condition(s) originally causing the fault must be remedied.DisableEnableDisableEnable