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Operations and Trend Logs
The OPERATIONS AND TREND LOGS typically store the same parameters. The only difference is the time
interval at which entries are made. The logs will also indicate which parameters have caused an alarm or failure by
placing an indicator next to the responsible parameter. The following table shows the indicators used for each of
the system alarm or failure states.
INDICATOR STATE
A Alarm State
F Failure State
O OEM Failure State
NOTE: The Operations and Trend Logs on compressors only accumulate data when the compressor is running.
However, alarm and failures will still be logged when the compressor is stopped.
The following is an example of the first page of the Operations Log. This particular log has 7 different pages to
display all the data.
PG 1/7 OPERATIONS LOG hh:mm:ss
TIME DATE TYPE
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
HH:MM:SS AM MM:DD:YY MODES
The following data descriptions apply to the Operations and Trend Logs.
PARAMETER DEFINITION
TIME The time the problem occurred.
DATE The date the problem occurred.
TYPE The type of log entry.
ENTRY DESCRIPTION Description of the log entry if applicable.
ALARM LEVEL The status level of the alarm/failure if one occurred.
DATA The analogs and other data recorded for the system.
Operations Log Page
Operations Log Definitions
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