Woodward AtlasPC, Руководство по оборудованию

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AtlasPC Digital Control, Vol. I Manual 85586V1
46 Woodward
Actuator Outputs
Number of channels 2
Actuator Type Proportional, non-isolated
Output Type 4-20 or 20-160 mA, software selectable
Isolation none
Max current output
25mA
±
5% (4-20 mA output scale)
200 mA
±
5% (20-160 mA output scale)
Min. load resistance 0 Ω
Max load resistance 300 Ω at 22 mA (4-20 mA output scale)
45 Ω at 200 mA (20-160 mA output scale)
Resolution 12 bits
Accuracy @ 25 °C less than ±0.1% of full scale,
0.026 mA
(4-20 mA output scale)
0.2 mA (20-160 mA output scale)
Readback Accuracy @
25 °C 0.5%
Temperature Drift 140 PPM/°C maximum,
0.24 mA maximum
(4-20 mA output scale)
1.82 mA maximum (20-160 mA output scale)
70 ppm/°C typical 0.45% of full scale,
0.12 mA (4-20 mA output scale)
0.91 mA (20-160 mA output scale)
Readbacks Actuator source and return currents
Dither Current 25 Hz, fixed duty cycle, software variable amplitude
Discrete Inputs
Number of channels 24
Input type Optically isolated discrete input
Input thresholds < 8 Vdc = “OFF”
> 16 Vdc = “ON”
Input current 3 mA @ 24 Vdc
Contact voltage 24 Vdc isolated
Max input voltage 28 Vdc
Isolation voltage 500 Vac, all channels are isolated from the AtlasPC platform
•
For EMC compliance, the on-board, isolated, +24 Vdc supply is
recommended for use as power to contacts, 100 mA maximum.
•
All channels are common to each other. Isolation is with respect to the
AtlasPC platform and other I/O types.
Serial I/O
Number of channels 3
Channel configuration 1 - RS-232, 9 pin sub D connector
2 - RS-232/RS-485/RS-422 software configurable, terminal block
connections
Termination Resistor Located on the board and are accessible via field wiring.
Termination resistors are provided for RS-485 and RS-422
Receive.
Isolation Voltage 500 Vdc