9. Problem Confirmation9.1.5 System General Events (Protection)Type Code Description MeasuresPROTECTION E401 TEMPERATUREProtectionWhen the switch temperature is high.Wait until the event message disappears.After the event message is removed, itautomatically returns to normal.If it is not removed until the time limit isreached, it is converted to a significantevent.PROTECTION E402 OVER CURRENTTZ FAULTOccurs on INVERTER hardware protection.Wait until the event message disappears.After the event message is removed, itautomatically returns to normal.If it is not removed until the time limit isreached, it is converted to a significantevent.PROTECTION E403 TEMPERATURESENSORWhen the temperature sensor connection isabnormal.Wait until the event message disappears.After the event message is removed, itautomatically returns to normal.PROTECTION E404 PV MIS-WIRING When the PV mis-wiring states is abnormal.Wait until the event message disappears.After the event message is removed, itautomatically returns to normal.[Table 9-5: System general events protection list]9.1.6 BMS General EventsType Code Description MeasuresWARNING E501 OVER VOLTAGEPROTECTION-CELLWhen the maximum cell voltage is aboveWarning level.Automatically returns to normal when themaximum cell voltage goes below the limitvalue.PROTECTION E502 OVER VOLTAGEPROTECTION-CELLWhen the maximum cell voltage is aboveProtection level, thus terminating thesystem.Automatically returns to normal when themaximum cell voltage goes below the limitvalue.WARNING E503 UNDER VOLTAGEPROTECTION-CELLWhen the minimum cell voltage is belowWarning level.Automatically returns to normal when theminimum cell voltage goes above the limitAustralia (Eng.) 05/2015. Rev1.1 75