Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

B–62755EN/01APPENDIXB. ALARM LISTB.4SPINDLE ALARMS(ANALOGINTERFACE)(S SERIES ACSPINDLE)Spindle alarms of Model 1S to 3SAlarmNo.Meaning Description Remedy“A”displayProgram ROM abnormality(not installed)Detects abnormality in ROM.Exchange ROMAL–01MotoroverheatDetects motor speed exceeding specified speed excessively.Check load status.Cool motor then resetalarm.AL–02 Excessive speed deviation Detects motor speed exceeding specified speed excessively.Check load status.Reset alarm.AL–03Defective regenerativecurrentDetects that regenerative current has flown longerthan the allowable time.Reset alarm after checkingcutting condition etc.AL–04Not usedAL–05Not usedAL–06 Excessive speed (Analog) Detects that motot rotation has exceeded 115% of itsrated speed.AL–07 Excessive speed (Digital) Detects that motor rotation has exceeded 115% of itsrated speed.Reset alarm.Reset alarm.AL–08 High input voltage Detects that input voltage is 230 VAC or higher . Flip switch to 230 VAC.AL–09Not usedAL–10 Low input voltage Detects drop in +15V power supply or input powersupply voltage.AL–11 Overvoltage in DC link section Detects abnormally high direct current power supplyvoltage in power circuit section.AL–12 Overcurrent in DC link section Detects flow of abnormally large current in direct currentsection of power cirtcuitRemove cause, then resetalarm.Remove cause, then resetalarm.Check transistor and motorcoils for their grounding, removecause, then resetalarm.AL–13Defectives CPU andperipheralsDetects abnormal transmission between CPU andperipheralsExchange PCB.AL–14 ROM abnormality Detects abnormality in ROM. Exchange ROM or PCB.AL–15AL–16AL–17Not usedNVRAM abnormality Detects abnormality in NVRAM for external data. Exchange NVRAM or PCB.AL–18toAL–23Defectives CPU andperipheralsDetects abnormal transmission between CPU andperipheralsExchange PCB.459