7.2 Alarm History Display (Fn000)7-37 Utility Functions (Fn)7.2 Alarm History Display (Fn000)This function displays the last ten alarms that have occurred in the servo drive.The latest ten alarm numbers and time stamps * can be checked.∗ Time StampsA function that measures the ON times of the control power supply and main circuit power supply in 100-msunits and displays the total operating time when an alarm occurs. The time stamp operates around the clock forapproximately 13 years.If 36000 is displayed,3600000 [ms] = 3600 [s] = 60 [min] = 1 [h]Therefore, the total number of operating hours is 1 hour.(1) PreparationThere are no tasks that must be performed before displaying the alarm history.(2) Operating ProcedureUse the following procedure.Note:• If the same alarm occurs after more than one hour, the alarm will be saved. If it occurs in less than one hour, itwill not be saved.• The display ".---" means no alarm occurs.• Delete the alarm history using the parameter Fn006. The alarm history is not deleted when the alarm reset is exe-cuted or the control power supply of the multi-winding drive unit is turned OFF.Step Display after Operation Keys Operation1Press the MODE/SET Key to select the utility function.If a number other than Fn000 is displayed, press the UPKey or DOWN Key to select Fn000.2 Press the DATA/SHIFT Key for approximately one sec-ond. The latest alarm data is displayed.3Press the DOWN Key to display one older alarm data.(To display one newer alarm data, press the UP Key.)The higher the far-left digit, the older the alarm data.4 Press the DATA/SHIFT Key.The lower four digits of Time Stamp are displayed.5 Press the DATA/SHIFT Key.The middle four digits of Time Stamp are displayed.6 Press the DATA/SHIFT Key.The higher two digits of Time Stamp are displayed.7 Press the DATA/SHIFT Key.The alarm number is displayed again.8 Press the DATA/SHIFT Key for approximately one sec-ond. "Fn000" is displayed again.MODE/SET DATA/MODE/SET DATA /MODE/SET DATA /Alarm CodeSee the alarmtable.Alarm SequenceNumberThe higher thenumber, the olderthe alarm data.MODE/SET DATA /MODE/SET DATA /MODE/SET DATA /MODE/SET DATA /MODE/SET DATA /MODE/SET DATA /
