Woodward AtlasPC, Руководство по оборудованию

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AtlasPC Digital Control, Vol. I Manual 85586V1
26 Woodward
100 10000 15000 20000 25000 30000
Frequency (Hz)
Minimum MPU Magnitude (Volts RMS)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Figure 5-3. Minimum MPU Voltage Graph
Analog Inputs
Number of channels 4
Input type 4–20 mA or 0–5 V
Max. input current 25 mA ±5% if configured for 4–20 mA
Max. input voltage 5.0 V ±5% if configured for 0–5 V
Common mode
rejection 80 dB minimum
Input common mode
range ±11 V minimum
Safe input common
mode volt ±40 V minimum
Input impedance 200 Ω (±1%)
Anti-aliasing filter 2 poles at 10 ms
Resolution 14 bits
Accuracy @ 25 °C less than ±0.1% of full scale, 0.025 mA
Temp Drift 171 ppm/°C, maximum (1.1% of full scale, 0.275 mA)
30 ppm/°C, typical (0.20% of full scale, 0.05 mA)
I/O Latency 1 channel at 1 ms, 1 channel at 3 ms, 1 channel at 5 ms, and 1
channel at 7 ms
•
Loop power for the Analog inputs is NOT available.
•
4–20 mA or 0–5 V is selected in the GAP block software, for each input, and
selected by terminal block wiring. Both the GAP field, and the wiring must be
changed.
External loop powered transducers must be individually protected
with a 100 mA fuse on each channel.