How the ION7650 "Detect waveshape changes" and "Record ultra-fast electrical parameters every 100 ms or every cycle"?

[sesa207393_brid]

Dear all,

In the functions and characteristics datasheet of ION7550/ION7650, I can find the following functions, but how to realize in ION7550 or ION7650? Please help to give your comments, thanks!

[sesa56307_bridg · Accepted solution]

Regarding "Detect waveshape changes", this feature is tied to the ION Transient module.  This module is described in detail in the ION Reference document; here is an excerpt:

"The Transient module predicts what the shape of a “normal” waveform should be for each voltage phase. These predicted normal waveforms are compared to the actual real-time phase voltage waveforms that are measured by the meter. If the actual waveform deviates from the predicted waveform by an amount greater than the Threshold, a transient is recorded."

Regarding "Record ultra-fast electrical parameters every 100 ms or every cycle", I think this would require a custom ION framework.  The ION Data Recorder modules can operate as quickly as every half-cycle on the ION7650, depending on how they are configured.  For example, an ION Data Recorder module could be configured to take input data from the ION HS Power Meter module (which is updated every half-cycle), and to trigger recordings every half-cycle using a Periodic Timer with its Period setup register set to the minimum value.  Typically, this would only be done for short periods of time close to a disturbance (controlled through custom logic in the framework that enables the logging process only during those times), because otherwise it will quickly fill up the available memory.

[sesa207393_brid]

Thank you very much, David!

About "Record ultra-fast electrical parameters every 100 ms or every cycle", I can't understand why we stress the '100ms' here? I think the Period of Periodic Timer can be any value between 10ms and 100ms, so is there any specific for '100ms' recording? Thanks!

Regards!

@David Tuckey

[sesa56307_bridg]

Hi Pengbin, sorry but I do not know the reason for stressing the '100ms' here.  I am not aware of any default data on the ION7650 that is updated at precisely a 100ms rate.  You are correct that the Period of a Periodic Timer module can be set to many different values, and I do not know of any special reason why we would stress 100ms.