Manual 85586V1
AtlasPC Digital Control, Vol. I
Woodward
45
Analog Inputs
Number of channels
6
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
2 channels at 1 ms, 2 channels at 3 ms, and 2 channels at 5 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.
Analog Outputs
Number of channels
6
Output type
4–20 mA outputs, non-isolated
Common Mode
Voltage
15 Vdc ±10%
Max current output
25 mA ±5%
Min. load resistance
0
Ω
Max load resistance
300
Ω
at 22 mA
Resolution 12
bits
Accuracy @ 25 °C
less than ±0.1% of full scale, 0.025 mA
Temperature Drift
140 PPM/°C, 0.23 mA maximum
70 ppm/°C, typical (0.45% of full scale, 0.11375 mA)
Summary of Contents for AtlasPC
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