480 Rockwell Automation Publication 1426-UM001J-EN-P - August 2019
Appendix H EN 50160 Conformance Tracking
Weekly Conformance Log
The power monitor logs the following parameters in a weekly log. The
parameters and their conformance criteria are described in Operation
on
page 474. The log contains eight records; record 1 being the current in-process
day and records 2…8 the completed records for the previous week. Records roll
over at midnight local time each day, at which time the oldest record is discarded
and the completed records are aggregated and written to the compliance record.
The records in the EN 50160 weekly log are expressed in percent of valid
intervals that are compliant with the conformance specifications. The number of
valid intervals of each duration, is also listed.
Yearly Conformance Log
The power monitor logs the following parameters in a yearly log. The parameters
and their conformance criteria are described in Operation
on page 474. The log
contains 13 records; record 1 being an in-process record for the current month
and records 2…13 the completed records for the previous year. Records roll over
at midnight local time the last day of each month, at which time the oldest record
is discarded and the completed records are aggregated and written to the
compliance record. The records in the EN 50160 yearly log are expressed in
percent of valid intervals that are compliant with the conformance specifications
or as counts of events. The number of valid 10 second intervals is also listed.
Table 233 - EN50160 Weekly Log
Tag Name Description Unit
Record_Number Record 1 is the current in-process record; 2 …8 are the completed records from the prior
week.
#
Log_Date The date this record was started. YYMMDD
Supply Voltage Range 1 Percent of valid intervals during which the parameter was within the specified range. %
Supply Voltage Range 2 %
Flicker Severity Plt %
Supply Voltage Unbalance %
Individual Harmonic Voltage %
Voltage THD %
Non-Synchronous Power Freq. Range 1
(1)
%
Non-Synchronous Power Freq. Range 2 %
10_Minutes_Valid_Data_Counts Number of valid intervals during 1 day. Valid interval is one without a voltage dip, swell,
or interruption.
#
2_Hours_Valid_Data_Counts #
10_Seconds_Valid_Data_Counts #
(1) Synchronous Power Frequency is assigned the value of zero if the PowerFrequency_Synchronization tag value = 0, synchronized.
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