[ve6-darstellungausgabebereich-10032003-kn, 1, en_GB]
Figure 2-49
Definition of output range representation
Example::
The difference voltage ΔU of the synchronizing function is to be output as analog output 1 for positive and
negative values at the mounting location “B”. For this a 4–20 mA output is implemented. A current below 4
mA (recommended monitoring threshold ≈ 2 mA) is to take it at the reception side as a wire break.
As a scaling value for the difference voltage 5 V is selected. Via the analog output voltage of ± 2.5 V is to be
output.
The following setting values result:
Scaling factor U for 100 %: Address 7303 SCAL. ΔU = 5.0 V
Minimum reference value in %: Address 7312 MIN. VALUE(B1) = –50 %
Minimum current output value in mA: Address 7313 MIN. OUTPUT(B1) = 4 mA
Maximum reference value %: Address 7314 MAX. VALUE(B1) = 50.00 %
Maximum current output value mA: Address 7315 MAX. OUTPUT(B1) = 20.0 mA
The relation between measured values and output values is illustrated in the following table as well as in
Figure 2-50.
Table 2-6
Example output for measured value ΔU
Measured value Percentage value Output value
invalid value (wire
break)
0.0 mA
–5.0 V –100 % 4.0 mA
–2.5 V –50 % 4.0 mA
–1.25 V –25 % 8.0 mA
0.0 V 0 % 12.0 mA
1.25 V 25 % 16.0 mA
2.5 V 50 % 20.0 mA
5.0 V 100 % 20.0 mA
Functions
2.11 AnalogOutputs
108 SIPROTEC 4, 7VE61 and 7VE63, Manual
C53000-G1176-C163-3, Edition 10.2017
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