Siemens SIMEAS R-PMU, Manual, Page: 265 / 296

18
18.2 Data Acquisition Units (DAU)
265
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
VDAU
Voltage measuring range AC 1.5 V to AC 200 V
Accuracy *: ±0.25 % of measured value ±30 mV
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Voltage measuring range AC 3 V to AC 400 V
Accuracy *: ±0.25 % of measured value ±30 mV
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Impedance: >100 k
Ω
Overvoltage: 300 V max. for 5 s
Impedance: >200 k
Ω
Overvoltage: 600 V max. for 5 s
CDAU
Entire current measuring range:
AC 5 mA to AC 400 A
Current measuring range AC 5 mA to AC 7 A
Accuracy *: ±0.5 % of measured value ±0.5 mA
Frequency behaviour: 3 Hz to 5,500 Hz (5 %)
Current measuring range: >AC 7 A to AC 200 A
Accuracy *: ±1.5 % of measured value ±100 mA
Frequency behaviour: 0 Hz to 5,500 Hz (5 %)
Current measuring range >AC 200 A to AC 400 A
Accuracy *: ±3.5 % of measured value
Frequency behaviour: 0 Hz to 5,500 Hz (5 %)
DDAU
Input range (depending on the version):
DC ±20 mA (50
Ω
)
DC ±1 V / DC ±10 V (> 40 k
Ω
/ > 400 k
Ω
)
Accuracy (at 23 °C ±1 °C):
Range 1 V: ±0.5 % of measured value ±1 mV
Range 10 V: ±0.5 % of measured value ±10 mV
Range 20 mA: ±0.5 % of measured value ±20
μ
A
* All precision data refer to the rms value in stationary operation mode at nominal frequency and at
23 °C ±1 °C.
Table 18-8 Binary inputs of VCDAU, VDAU, CDAU, DDAU, and BDAU
Input voltage L-level H-level Overload
(at 1 mA input current)
DC 24 V
DC 48 V to DC 60 V
DC 110 V to DC 125 V
DC 220 V to DC 250 V
≤
7 V
≤
14 V
≤
28 V
≤
56 V
≥
18 V
≥
36 V
≥
75 V
≥
165 V
DC 28.8 V
DC 72 V
DC 150 V
DC 300 V
Table 18-7 Measuring ranges and important parameters (without binary inputs) (Forts.)
Type Measuring ranges / accuracy Parameters