Siemens Simatic ET 200SP Manual page 105

Parameters
13.2 Description of parameters
Detect peak value voltage
Activates the detection of voltage peak values. Further information can be found under Peak
values of the instantaneous values for voltage (Page 121).
Detect overcurrent
Activates the detection of overcurrent. Further information can be found under Overcurrent of
the current half value (Page 129).
Analyse harmonics
Activates harmonics analysis
Nominal value current [A]
Enter the nominal value for the current. This is the "operating point" in your application.
Tolerance factor overcurrent in relation to nominal value current [0.1%]
Further information can be found under Diagnostics: Overload (Page 123).
Tolerance time overcurrent [ms]
Further information can be found under Diagnostics: Overload (Page 123).
Low limit current measurement in relation to nominal value current [0.1%]
The configurable low limit for measuring current refers to the nominal value and is used to
avoid incorrect calculations in the case of very low currents. Incorrect measurements of very
low currents in particular are a cause of inaccuracies in the current transformer used. Set the
low limit for the current measurement to the required value depending on your process.
Note
Tip: If you want to find the low limit for the current measurement experimentally, set it to a
lower value. Then, feed in a very precise low current and determine the measurement error
that can no longer be tolerated. Afterwards, set the low limit for the current measurement to
the limit value you have determined.
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Analog input module AI Energy Meter 480VAC/CT HF (6ES7134-6PA00-0CU0)
Manual, 07/2018, A5E42674880-AA