Sigma II User’s Manual Appendix B: List of ParametersB - 25B.7.7 Alarm and Warning ListAlarm listAlarmAlarm Code Output ServoAlarmOutputAlarm Name Alarm OccurrenceCauseAlarmReset*1 SolutionALO1 ALO2 ALO3A.09 × × × × Dividingfrequencysetting errorThe value of dividingfrequency (Pn212 ) isset to an invalid value.Or the resolution ofconnected encoder isexceeded.CyclepowerChange thesetting ofPn212(Pn213) to asettable value,and then cyclecontrol poweror reset thesoftware.For linear motors, thedeviding ratioexceeded the settingin Pn281.CyclepowerChange thesetting rangeto inside of thecalculationresult ofUn010, andthen cyclecontrol poweror reset thesoftware.A.0A × × × × Encoder typeunmatchedThe attached serialencoder type is notsupported.An alarm occurs whenthe encoder type isother than thefollowings.UTS*: Σ-II type serialencoderJZD*: Σ-II type serialencoder (Linear)CyclepowerChange themotor to theΣ-II supporttype.A.55 × × Setting errorof linear motorpeak speedWhen the linear motorwas connected, thevalue more than linearmotor peak speedwas set to Pn384.resettable Set Pn384 tobelow thelinear motorpeak speed.A. b1 × × × × Reference A/D errorReference A/DbreakdownThe A/D conversionresult of 0V and ±5Vgenerated inside theservo amplifier shiftedby 1V or more, andthis state continuedfor 20ms.Check only 0V whenthe servo is ON, andcheck 0V, and ±5Vwhen the servo isOFF.resettable Replace theservoamplifier
