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DNR-AI-255

DNR-AI-255
2-Channel Synchro/Resolver Interface for the PowerDNR RACKtangle®
 
The DNR-AI-255 is a two-channel Synchro/Resolver input and output boards for powerful RACKtangle® I/O chassis. The board is suitable for a wide variety of test, measurement and control applications as well as for simulated outputs for test and simulator applications. The board may be configured as two inputs, two outputs, or one input and one output.

The board provides 2 input channels that will monitor either 3-wire synchros or 4-wire resolvers. The board's high precision circuitry combined with each channel’s independent 16-bit A/D converter allow measurement accuracies up to ±2.6 arc-minutes. The inputs may be read at rates up to 800 rps, depending upon the reference frequency.

Each channel provides its own programmable reference with outputs independently programmable from 2 to 28 Vrms at frequencies from 50 to 4,000 Hz and up to 1.2 VA. The DNR-AI-255 also provides two channels of synchro or resolver output that are ideal for driving such items as attitude indicators or as a test source for a wide variety of synchro or resolver input devices. The outputs each accept an independent reference signal and offer 16-bit output resolution. Each channel will drive up to 28 Vrms at 1.2 VA without external buffering.

The board offers 350 Vrms of isolation between channels as well as between the I/O connections and the RACKtangle chassis. Like all DNx I/O boards, the DNA-AI-255 offers operation in harsh environments and has been tested to 5g vibration, 50g shock, -40 to +85 °C temperatures, and altitudes up to 70,000 feet in Cube based systems.

Software for the DNR-AI-255 is provided as part of the UEI Framework. The framework provides a comprehensive yet easy to use API that supports all popular Windows programming languages as well as supporting programmers using Linux and most real-time operating systems including QNX, RTX, RT Linux and more. Finally, the Framework supplies complete support for those creating applications in LabVIEW, MATLAB/Simulink, DASYLab or any application supporting ActiveX or OPC servers.
 
Characteristics:
  • 2 input / output channels
  • 16-bit resolution
  • 3-wire (Synchro) and 4-wire (Resolver) inputs
  • Reference output per channel
  • 2 to 28 Vrms programmable reference
  • 50 Hz to 4000 Hz
  • 28 Vrms output at 1.2 VA without external buffer
  • Fully Isolated (Chan to Chan and Chan to Chassis)
 
Technical Specifications
Inputs
Number of channels 2
Configuration Synchro (3-wire) or Resolver (4-wire) may be selected via software
Resolution 16-bit
Accuracy ± 2.6 arc-minute
Frequency 50 Hz to 4.0 kHz
Signal Inputs 2-28 Vrms.
Acceleration 300 rps/s @ 60 Hz
450 rps/s @ 400 Hz
1000 rps/s @ 4000 Hz
Step response 800 mS - 179° @ 60 Hz
150 mS - 179° @ 2500 Hz
Update rate Maximum update rate is equal to the excitation frequency.
Reference output
Number of channels 2 (one per input channel)
Output voltage 28 Vrms up to 1.2 VA.
Voltage resolution 1.2 mVrms
Reference Frequency 50 Hz to 4 kHz (±0.5%)
Synchro / Resolver Outputs
Number of channels 2 (total number of synchro/resolver inputs and simulated outputs is limited to 2.)
Configuration Synchro (3-wire) or Resolver (4-wire)
Resolution 16-bit
Output Voltage 28 Vrms up to 1.2 VA.
Output Accuracy ±4 arc-minutes
General Specifications
Operating temperature Tested -40 °C to +85 °C
Vibration IEC 60068-2-6 5 g, 10-500 Hz, sinusoidal
IEC 60068-2-64 5 g (rms), 10-500 Hz, broad-band random
Shock IEC 60068-2-27 50 g, 3 ms half sine, 18 shocks @ 6 orientations
30 g, 11 ms half sine, 18 shocks @ 6 orientations
Humidity 5 to 95%, non-condensing
Altitude 0 to 70,000 feet
MTBF 275,000 hours