User Documentation

120
Devices – Energy Analyser D550
2008050000/03/02-2018
INFOBEREICH
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- Current, IL1, IL2, IL3, IL4
- Effective power, PL1, PL2, PL3, PL4
- Fundamental-wave reactive power Q0L1, Q0L2, Q0L3, Q0L4
The fundamental wave-reactive power compensation has a measurement error of as much as 0.2 % due
to a constant phase shift of 1.5 ° and a ripple of 0.1 %.
• Processing time (calculation)
- Typically 5 ms
- Maximum 10 ms
Processingtimevariables:NumberandruntimeofJasicprograms;homepageaccesses.
• Transmission to the interfaces
- Typical latency period 1 ms
- maximum 7 ms
• Calculation of the full wave effective values
4.3.4.3 Fixed frequency
A frequency in the range 40...70 Hz can be selected for grid analysis.
Modbusaddress:10248;type:oat;numberrange:0,40...70Hz
• Selectable in ecoExplorer go:
- 50Hzxedfrequency
- Measurement values are calculated on the basis of 10 periods (200 ms measurement window).
- 60Hzxedfrequency
- Measurement values are calculated on the basis of 12 periods (200 ms measurement window).
- 0 automatic frequency determination
- Frequency range: 40...70 Hz
- Measurementvaluescanbeformedfromthenumberofperiodsthatbestreecta200msmeasure-
ment window.
NOTE: Ifaxedfrequencyofe.g.50Hzor60Hzisselected,currentscanbemeasuredevenifameasure-
ment voltage has not been applied.
Otherxedfrequenciesintherange40...70HzcanonlybesetviatheModbusaddress.
The network frequency can also be calculatedand for example displayed by ecoExplorer go only if
automaticfrequencydeterminationhasbeenselected.Otherwise,onlytheselectedxedfrequency
will be displayed as the network frequency.