YASKAWA Varispeed F7 User Manual

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8 Protective Operations458.2 Alarm Processing SI-T Communications Fault DetectionThe following tables show the communications faults detected by the SI-T and the condi-tions in which they can be detected.Table 6 Response Data for Consecutive Alarms and/or WarningsFault Detection MECHATROLINK-II Response Data ContentsPreviousValueMost RecentValueAlarm STATUSWARNG ALMAlarm Alarm Most recent alarm code 0 1Alarm Warning Most recent alarm code 1 1Warning Alarm Most recent alarm code 1 1Warning Warning Warning with the smaller warning code 1 0Table 7 Reception Failures in Each PhaseCommunicationsPhaseReception Failure Transmission cycleFirst Second (Consecutive) FaultPhase 1 − − −Phase 2 96 E6 E6Phase 3 96 E6 E6Table 8 Alarm Code (MECHATROLINK-II Response ALARM Value)ALARM Description Fault Type96 MECHATROLINK-II communications fault warning Communications warningE5 MECHATROLINK-II WDT fault Communications alarmE6 MECHATROLINK-II communications fault Communications alarmTable 9 Fault TypesFault DescriptionCommunications failure Transmission LSI detected a data reception failure.Transmission cycle fault A timing fault of a synchronous frame in a transmission cycle wasdetected.Watchdog timer fault A WDT count fault in a synchronous frame was detected.