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Vsup Vsup Note You must use 2-wire ferrules to create a secure connection when connecting more than one wire to a single terminal on the NI-9472 with screw terminal or NI-9472 with spring terminal. Table 1. NI-9472 Signal Descriptions Signal...
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Connecting Digital Devices You can connect a variety of industrial devices, such as solenoids, motors, actuators, relays, and lamps to the NI-9472. You must connect an external power supply to the NI-9472. The power supply provides the current for the output channels.
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Increasing Current Drive Each channel of the NI-9472 has a continuous output current of 0.75 A. If you want to increase the output current to a device, you can connect any number of channels together in parallel.
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If a short circuit occurs, the current through DO can exceed the current rating for the power supply and the maximum continuous output current for the NI-9472. If the power supply you are using with the NI-9472 cannot supply more than 14 A, the module may be damaged if a short circuit condition occurs.
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– Device NI 9472 The DO channels are internally referenced to COM. ■ The NI-9472 has sourcing outputs. Sourcing outputs drive current from ■ Vsup to DO when the channel is on. For more information about sourcing outputs, visit ni.com/info enter the Info Code sinksource.
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