If A Power Failure Occurs Now, The Last Data Changed Will Be Lost; Power On After Power Failure - Siemens Sinamics S120 Diagnostic Manual

Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. No remedial measures are available for the further exe-
cution of the current part program, however:
1. Reduce log file size requirement by:
Reducing the distance between the preprocessing and the main run via appropriate preprocessing stops (STOPRE).
2. Increase the size of the logfile by means of the channel-specific machine data:
Modify MD28000 $MC_MM_REORG_LOG_FILE_MEM and
Modify MD MD28010 $MC_MM_NUM_REORG_LUD_MODULES
Program Alarm display showing cause of alarm disappears. No further operator action necessary.
Continuation:
15120 If a power failure occurs now, the last data changed will be lost; index/buffer size = %1
Parameters: %1 = Index/buffer size
Definitions: Notification alarm. The alarm has no negative impact on the current machining.
One of the system-internal data buffers, in which the last changed, buffered data are stored,
has overflowed because the current data change rate is too high.
The alarm warns that a spontaneous power failure in this situation
(mains fault, disconnect the system from the power supply) would
cause a loss of the immediately previously changed buffered data
(tool data, parts programs, R parameters, GUDs,...)
If the system is operated in an environment in which a power failure cannot occur, then the output of
this alarm can be prevented via machine data MD18232 $MN_MM_ACTFILESYS_LOG_FILE_MEM[ index ] = 0.
For information, parameter %1
specifies the index of the machine data,
and the buffer size set there.
Reaction: Alarm display.
Remedy: If the alarm is present only sporadically, it can simply be regarded as a notification.
The regular control behavior is not affected.
If one does not want to or cannot eliminate the cause, then the alarm can be suppressed by setting
MD11415 $MN_SUPPRESS_ALARM_MASK_2; Bit3=1 ('H8').
If the alarm is permanently present, please inform the authorized personnel/service department.
The value of MD18232 $MN_MM_ACTFILESYS_LOG_FILE_MEM[ index ] will then have to be increased.
Program Alarm display showing cause of alarm disappears. No further operator action necessary.
Continuation:
15122 Power ON after power failure: %1 data were restored, of which %2 machine data, %3
errors.
Parameters: %1 = Number of data
%2 = Number of machine data
%3 = Number of errors occurred
Definitions: Notification alarm. The alarm has no negative effect as long as %3 the number of errors occurred is zero.
%1 indicates the number of elementary and complex data restoring steps which were taken after a power OFF during
power ON orduring a power failure to restore the persistent NCK data.
%2 indicates the number of restored machine data. If the value is larger than zero, another warm restart (NCK reset)
may be necessary to make the - possibly configuring - machine data changes prior to the power failure effective.
%3 indicates the number of errors occurred during data restoring.
Reaction: Alarm display.
Remedy: As long as %3 number of errors occurred is zero, the alarm is only informative.
As long as %3 number of errors occurred is larger than zero, the alarm indicates a software error.
Further machining with the data is not recommended.
Please load a suitable archive file before continuing machining to avoid subsequent problems.
Please inform the authorized personnel/service department.
File /_N_MPF_DIR/_N_SIEMDIAGMEMPF_MPF contains information that may help Siemens for error diagnosis.
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
NCK alarms
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