NI 9470, 8 Ch, 13 A, 5-30 VDC, Current Readback, Variable Digital Output C Series Module (787089-01)

5 VDC to 30 VDC, 8-Channel (Sourcing Output), 2 kHz C Series Digital Module
The NI‑9470 is a digital output module that features proportional valve drive control. You can use the NI-9470 to perform pulse width modulation (PWM), dither control, and current readback. The NI‑9470 features eight output channels compatible with signals from 5 V to 30 V and transient overvoltage protection between the output channels and the backplane.

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Key product
Output Characteristics

  • Number of output channels=8 push-pull
  • Current-sensing inputs=8 low-side sensing resistors

Data rate

  • 12.8 MHz timebase=3.2 kHz
  • 3.1072 MHz timebase=3.277 kHz
  • PWM frequency configuration=2.048 kHz

Number of Channels Maximum Current Per Channel

  • Two channels=2.3 A
  • Four channels=2.3 A
  • All channels=1.6 A
  • Maximum peak current per channel=3.5 A

Maximum cable length

  • External power supply cable maximum length=10 m
  • Digital output cable maximum length=20 m

Output Mode Characteristics

  • Setpoint mode=Per channel
  • Duty Cycle mode=Duty cycle setpoint
  • 0% to 100%=Duty cycle setpoint resolution=0.025% maximum

Environmental Characteristics
Temperature

  • Operating=-40 °C to 70 °C
  • Storage=-40 °C to 85 °C

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