Waveform Records; Function Description - Siemens SICAM 7KG85X Manual

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6.5 Waveform Records

6.5 Waveform Records

Function Description

6.5.1
When a trigger function is activated, a waveform recorder records the following values:
•
Voltages
•
Currents
The following table shows all trigger sources of the waveform recorder, as well as the corresponding measure-
ment time base and trigger conditions.
Table 6-14
Trigger Source
Voltage trigger
Current trigger
You can parameterize the trigger sources and switch them on/off separately. If the trigger is switched off,
recording cannot be initiated.
Finishing of the waveform recording depends on the configured recording duration. The waveform record is
written to the SD card for subsequent evaluation.
The nominal sampling rate for the waveform recorder is 10 240 samples per second, that is 204 samples per
cycle for the 50-Hz system.
134
Triggers of the Waveform Recorder
Measurement Time
Base
1/2 cycle
1/2 cycle
Trigger Conditions
The trigger starts if one of the following conditions is
met:
•
The measured value > the upper threshold
•
The measured value < the lower threshold
•
A voltage event occurs.
The trigger starts if one of the following conditions is
met:
•
The measured value > the upper threshold
•
The measured value < the lower threshold
SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022