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Why won't voltage and current sag/swell waveforms appear in the waveform/sequence of events data log for the ION7500 or ION7550?

If you have checked to make sure that the nominal voltage is set to something rather than zero and the waveform recording and sag/swell detection modules have been enabled then this could result from the frequency in the filters being too low. To fix this do the following:

  1. Right click on the data log and click on Edit SQL... under the query tab
  2. Change the frequencies in the code (there will be a number that you have to change for each table of the query so by default there will be 8 values to change) to a higher number (an example of what the code looks like is below and the number that you change is in red below).

    UNION
    SELECT timestamp
    , NULL
    , NULL
    , NULL
    , NULL
    , NULL
    , V2
    , NULL
    , NULL
    , NULL
    , NULL
    , NULL
    , NULL

    FROM --(*vendor(PML),product(LogServer) 0xf95@Neas.ION7500 *)--
    WHERE SamplingFrequency < 12000
  3. Save and close and the waveforms should now be visible when you open the datalog.




Last Revised: November 14, 2007
Applies To: ION Enterprise
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