10 Troubleshooting10.1.1 List of Alarms10-210.1 TroubleshootingThe following sections describe troubleshooting in response to alarm displays.The alarm name, alarm meaning, alarm stopping method, alarm reset capability and alarm code output arelisted in order of the alarm numbers in 10.1.1 List of Alarms.The causes of alarms and troubleshooting methods are provided in 10.1.2 Troubleshooting of Alarms.10.1.1 List of AlarmsIf an alarm occurs, the servomotor can be stopped by doing either of the following operations.AlarmDisplay Alarm Name MeaningServo-motorStopMethodAlarmResetAlarm Code OutputALO1 ALO2 ALO3A.020 Parameter ChecksumError 1The data of the parameter in the SERVO-PACK is incorrect. Gr.1 N/AH H HA.021 Parameter Format Error 1 The data of the parameter in the SERVO-PACK is incorrect. Gr.1 N/AA.022 System Checksum Error 1 The data of the parameter in the SERVO-PACK is incorrect. Gr.1 N/AA.023 Parameter Password Error1The data of the parameter in the SERVO-PACK is incorrect. Gr.1 N/AA.030 Main Circuit Detector Error Detection data for power circuit is incorrect. Gr.1 AvailableA.040 Parameter Setting Error 1 The parameter setting is outside the allow-able setting range. Gr.1 N/AA.041 Encoder Output PulseSetting ErrorThe encoder output pulse setting (pulseunit) (Pn212) is outside the allowable set-ting range or not satisfies the setting condi-tions.Gr.1 N/AA.042 Parameter CombinationErrorCombination of some parameters exceedsthe setting range. Gr.1 N/AA.044 Fully-closed Loop ControlParameter Setting ErrorThe settings of the option module andPn00B.3, Pn002.3 do not match. Gr.1 N/AA.050 Combination Error The SERVOPACK and the servomotorcapacities do not match each other. Gr.1 AvailableA.051 Unsupported Device Alarm The device unit unsupported was con-nected. Gr.1 N/AA.0b0 Cancelled Servo ONCommand AlarmThe Host controller reference was sent toturn the Servo ON after the Servo ON func-tion was used with the utility function.Gr.1 AvailableA.100 Overcurrent or Heat SinkOverheatedAn overcurrent flowed through the IGBT.Heat sink of the SERVOPACK was over-heated.Gr.1 N/A L H HGr.1: The servomotor is stopped according to the settings in Pn001.0 if an alarm occurs. Pn001.0 is factory-setto stop the servomotor by applying the DB.Gr.2: The servomotor is stopped according to the setting in Pn00B.1 if an alarm occurs. Pn00B.1 is factory-setto stop the servomotor by setting the speed reference to "0. " The servomotor under torque control willalways use the Gr.1 method to stop. By setting Pn00B.1 to 1, the servomotor stops using the samemethod as Gr.1. When coordinating a number of servomotors, use this alarm stop method to preventmachine damage that may result due to differences in the stop method.Available: Removing the cause of alarm andthen executing the alarm reset can clear thealarm.N/A: Executing the alarm reset cannot clear thealarm.
