TroubleshootingPower Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.com 55Table 15. Alerts That Signal Inverter Service Is Required: NOTIFYNotify Display Text DescriptionResolutionFollowing these steps. if fault continues, contact Eaton serviceSG1 AC Surge 1 Primary AC Surge Protector FailureAC Surge devices between CB1and K8/K9/K10Replace AC Surge protector SS2 and/or SS4 in the AC Cabinet Section■ Verify 30 A fuses F31 | F32 | F33■ Verify ckt-wiring SS2-12 – 18RD513 – CAUX3-J3-2■ Verify ckt-wiring SS4-11 – 18RD3360 – TB10-2 (+24 V)■ Verify ckt-wiring 18RD3360A between SS2-11 – SS4-12SG2 AC Surge 2 AC Surge Protector FailureAC Surge device on TR2 X1/X2/X3for 208/120- VacReplace AC Surge protector SS3 in the AC Cabinet Section■ Verify 30 A fuses F46 | F47 | F48■ Verify ckt-wiring SS3-12 – 18RD581 – CAUX3-J3-5■ Verify ckt-wiring SS3-12 – 18RD3361 – TB10-3 (+24 V)SG3 DC Surge DC Surge Protector FailureDC Surge device DC (PV) input circuitsre-combinerReplace DC Surge protector SS1 in the lower DC Cabinet section■ Verify 20 A fuses F1 and F2■ Verify ckt-wiring SS1-12 – 18RD501 – CAUX1-J3-1■ Verify ckt-wiring SS1-11 – 18RD3352 – TB12-5 (+24 V)XN1 – XN8 User-Defined User defined Notify messages as part ofthe Multi-Function IO Feature set.Consult Eaton prior to Inverter order/factory build1. See equipment delivery documentsTable 16. Inverter Inhibit Status: INHIBITInhibitStatus Display Text DescriptionResolutionFollowing these steps. if fault continues, contact Eaton serviceI1B0 Retry Timer Active The 60-second re-connect count-down timer isactive and preventing exit from Sleep mode1. Verify solar irradiance > 200 W/m 2 or if Low-Array is active2. Verify utility-grid is not > 105% at initial grid-tie start-up(s), e.g.;■ Mornings■ Re-start following service or grid-outageI1B1 Warning Active Any of the warnings are active, preventing exitfrom Sleep modeVerify and address active inverter warnings or faultsI1B2 Temp Inhibit Indicates that the stacks’ inlet water is belowthe minimum threshold (–20 °C/–4 °F),preventing exit from Sleep modeVerify cabinet heaters are enabled and set to proper valuesI1B3 Array Inhibit Indicates that one of the following arrayconditions are preventing exit fromSleep mode1. Array Vdc < Wakeup Voltage2. Array Vdc > Maximum RatedDC Voltage (1100 Vdc)3. All inverter stacks are disabled.1. Verify solar irradiance > 200 W/m 2 or if Low-Array is active2. Verify string-voltage does not exceed NEC 1000 V for extreme(cold) temperatures.3. Verify Inverter operational settings on HMII1B4 Reconnect Timer Active The utility-grid must be within the IEEE1547voltage and frequency parameters (valid) for5 minutes (300 seconds) prior to grid-tie (sync)attempt.Normal initial grid-connection timer.I1B5 SEL Fault Active SEL protection relay has detected the utility-gridoutside of the IEEE1547 under or over voltageSEL settings, else under or over the frequencySEL settings.1. Verify utility-grid voltage and frequency2. Verify utility-grid is within SEL settings