Eaton Power Xpert Solar 1500 User Manua

TroubleshootingPower Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.com 45Figure 28 on Page 46 contains a machine state diagram ofthe inverter’s operational states, which can be helpful fordiagnostics and troubleshooting.W R ∞Warning cannot become a faultA WARNING with an infinite retry.■ The inverter will automatically attempt to clear the warnings and resume operation.❑ 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.WWarningSchweitzer Protection Relay Notes■ If a Schweitzer FAULT occurs (grid disturbance), the “Reconnect” time dictates the minimum delaybefore attempt. (default is 5 minutes, typical to UL1741)■ The AC breaker CB1 will open in this case due to wiring between Schweitzer and Magnum shunttrip.NOTIFY Items that address servicing the inverterTable 10. Fault and Warning Types: Actions and Resolution, continuedFault Type/Category Actions and Resolutions