[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
.
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
Summary of Contents for SIPROTEC 4 7VE61
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