Historic Log - Siemens SINAMICS PERFECT HARMONY GH180 Function Manual

Operating the Control
7.14 Data Loggers
7.14.4

Historic Log

The historic log records operating data of the drive and is frozen upon detection of a fault. The
data recorded consists of both fixed and programmable data points, which are sampled at the
slow loop rate, typically 450 Hz. Upon detection of a drive fault by the NXGpro software, the fault
is recorded at time = 0 and the drive continues to record data for a brief period after the fault.
This allows recovery of data just prior to and after any fault so that operational data prior to and
after a fault can be reviewed. A new fault will overwrite the recorded historic log. The event log
includes the option to copy and record the historic log so that all fault events are recorded.
The historic log is stored in memory with a total of 512 records. Non-volatile memory is used to
store the most recent 78 records. Snapshots are recorded at the slow cycle update rate:
• Most snapshots are recorded before a fault occurs.
• 20 snapshots are recorded after a fault occurs.
If parameter Store in event log (6255) is on at the time of a drive fault, the non-volatile portion
of the historic log is stored in the event log following the fault message.
Refer to the Historic Log Menu (6250) in Section Options for Log Control Menu (6) of Chapter
Parameter Assignment / Addressing for associated parameters.
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NXGPro+ Control Manual
Operating Manual, A5E50491925A