4.3 Alarms Related to Synchronized Stopping
4-6
4.3
Alarms Related to Synchronized Stopping
If an alarm without valid position data occurs, the servo will be turned OFF for the synchronized
stopping axis and synchronized stopping will not be performed.
The alarms without valid position data are given in the following table.
Alarm
Number
Alarm Name Alarm Meaning
A.810 Encoder Backup Alarm
The power supplies to the encoder all failed and the position
data 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 power
was 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 is
not possible.
A.C91
Encoder Communications Posi-
tion Data Acceleration Rate Error
An error occurred in calculating the position data of the
encoder.
A.C92
Encoder Communications Timer
Error
An error occurred in the communications timer between the
encoder and SERVOPACK.
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