YASKAWA SGM series User Manual page 196

4.2 Using the Functions
3) The table below lists the alarms displayed in the alarm trace-back mode.
Displayed Alarm Description
Code
Absolute data error
User constant breakdown
User constant setting error
Overcurrent
Position error pulse overflow (for position control only)
Overvoltage
Overspeed
Overload
Absolute encoder error
Absolute encoder back-up error
4
Absolute encoder checksum error
Absolute encoder battery error
Absolute encoder data error
Absolute encoder overspeed
Reference input read error
Servo overrun detected *
Encoder output phase error
Encoder A-, B-phase disconnection
Encoder C-phase disconnection
Power loss error (detected if power reconnected within power holding
time)
Not an alarm. Reset by alarm reset or Servopack power ON.
* This function prevents overrun.
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