Application And Setting Notes - Siemens SIPROTEC 5 Manual

Function-Group Types
6.5 Function-Group Type Analog Units
[scmuio212, 1, en_US]
Figure 6-52
The fast measuring-transducer channels can be configured either as current or as voltage inputs. Apart from
this, their function corresponds to the basic function of the 20-mA-channels (see chapter
Channel).
6.5.6.4

Application and Setting Notes

Parameter: TD input-signal type
•
Default setting (_:101) TD input-signal type = Current input
With the parameterTD input-signal type you determine whether the measuring-transducer input
channel works as a Current input or as a Voltage input.
Make sure that the selected channel has also been wired correctly (see Hardware manual, Input and Output
Module IO212).
Parameter: Unit
•
Default setting (_:103) Unit = A
With the parameter Unit, you set the physical unit of measurement of the measured values. The possible
setting values are listed in the settings table.
Parameter: Measuring window
•
Default setting (_:142) Measuring window = 10 ms
With the parameter Measuring window, you set the measuring window that is used to determine the arith-
metic mean value from the sampled values. In case of slowly varying signals, Siemens recommends setting the
top value to 100 ms. With this value, a new, current measured value is provided every 100 ms for further
processing.
190
Parameters of the Measuring-Transducer Channels.
6.5.3.5 20-mA
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017