Display Delay Function For Communication Errors And Servo/Spindle Alarms - Mitsubishi Electric M80 Series Maintenance Manual

M800/M80/E80 Series Maintenance Manual
4 Failure Diagnosis

4.11.5 Display Delay Function for Communication Errors and Servo/Spindle Alarms

When the power is turned OFF, the communication error (Y02 System error 0051) or the servo alarm (S01 Servo alarm 87)
may occur depending on the machine configuration. Sometimes these alarms fill up the alarm history display to be obsta-
cles for maintenance diagnosis.
Set the parameter "#1476 ComErrDly" (Delayed display and storage of communication error) or "1477 SrvAlmDly" (Delayed
display and storage of servo/spindle alarm) in this case, and saving of these alarms in the alarm history is delayed and they
also are not recorded. The parameter "#1476 ComErrDly" or "#1477 SrvAlmDly" only enables the display/history of the
alarms to be postponed; therefore, the NC is in the emergency stop state while the alarm display is being delayed.
Set the minimum value in the parameter because the display of the communication error or servo/spindle alarm caused by
the other issues than the power OFF is also to be delayed. When the history of the communication error or servo/spindle
alarm is not recorded at the timing of the power OFF, this setting is not required.
127 IB-1501273-F