Sinumerik Alarm 4065 Buffered memory was restored from backup medium (potential loss of data!)

Sinumerik Alarm 4065 Buffered memory was restored from backup medium (potential loss of data!)

Definitions:
Only occurs with PC-NC. A possible data integrity error was detected in the buffered memory during power-up.The buffered memory was initialized with the last backup copy. Changes in the buffered memory, which have been made since the last backup copy update, have been lost. Backup copies of the buffered memory are updated (on the hard disk) every time the control is shut down normally.
!! Only for 802D: The reason for this procedure is that the backup time is exceeded. Make sure that the required operating time of the control corresponds to the specifications in your Installation & Start-up Guide. The current backup copy of the buffered memory has been created by the last internal data backup via the “Save data” soft key on the HMI.

Reactions:
– Alarm display.
– Interface signals are set.
– NC not ready.
– NC Start disable in this channel.

Remedy:
Start the control again.

Program Continuation:
Switch control OFF – ON.