4.3 Alarms Related to Synchronized Stopping4-64.3 Alarms Related to Synchronized StoppingIf an alarm without valid position data occurs, the servo will be turned OFF for the synchronizedstopping axis and synchronized stopping will not be performed.The alarms without valid position data are given in the following table.AlarmNumber Alarm Name Alarm MeaningA.810 Encoder Backup Alarm The power supplies to the encoder all failed and the positiondata was lost.A.820 Encoder Checksum Alarm There is an error in the checksum results for encoder mem-ory.A.840 Encoder Data Alarm There is an internal data error in the encoder.A.850 Encoder Overspeed The encoder was operating at high speed when the powerwas turned ON.A.890 Encoder Scale Error A failure occurred in the linear encoder.A.891 Encoder Module Error An error occurred in the linear encoder.A.C90 Encoder Communications Error Communications between the encoder and SERVOPACK isnot possible.A.C91 Encoder Communications Posi-tion Data Acceleration Rate ErrorAn error occurred in calculating the position data of theencoder.A.C92 Encoder Communications TimerErrorAn error occurred in the communications timer between theencoder and SERVOPACK.
