Rockwell Automation 1426 PowerMonitor 5000 Unit - Manual (Page 141)

Rockwell Automation Publication 1426-UM001F-EN-P - November 2013 141
Logging Chapter 6
Power Quality Log
(M6 model) The PowerMonitor 5000 M6 model records power quality events that it has
detected and classified into a Power Quality log.
Setup
• Basic metering setup
• Date and time setup
• Logging configuration
The Power_Quality_Log_Mode parameter in the Configuration.Logging tab
determines what happens when the log is full:
• 0 = Stop logging; no more power quality data is logged.
• 1 = Overwrite oldest record; logging continues and oldest events are
deleted.
Operation
A Power Quality log record is comprised of the event classification, local and
UTC timestamps, duration of event, minimum sag rms voltage and maximum
swell rms voltage level, and the trip point setting. Time stamps have a resolution
of 1 microsecond. If a sag or swell event has an associated waveform recording,
the Power Quality log entry includes the Association_Timestamp, a date/time
reference to the waveform.
Because the user or software can delete waveform files to make room for more
captures, a situation can occur in which a reference appears in a power quality log
record but the file no longer exists. In this case, the write status table returns ‘Log
File Not Found’ to the user. Refer to the
Power Quality Log (M6 model) section
for more information.
The power quality log is 100 records deep.
File Name
The power quality log is named Power_Quality_Log.csv.