National Instruments NI 9472, Начало работы

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Figure 2. Increasing the Current to a Device Connected to the NI-9472
NI 9472
DO3
DO1
DO0
DO2
3 A
+
–
COM
0.75 A
0.75 A
0.75 A
0.75 A
External
Power
Supply
Device
V
sup
High-Vibration Application Connections
If your application is subject to high vibration, NI recommends that you follow these
guidelines to protect connections to the NI-9472:
■
Use ferrules to terminate wires to the detachable connector.
■
Use the NI 9927 backshell kit with the NI-9472 with screw terminal or the
NI 9981 backshell kit with the NI-9472 with spring terminal.
I/O Protection
The NI-9472 provides short-circuit protection.
Each channel has circuitry that protects it from current surges resulting from short
circuits over 14 A.
Note
Refer to the device datasheet at ni.com/manuals for maximum
continous output current, short-circuit behavior, and short-circuit trip time
specifications and information about conditions that may damage the
module.
Note
Refer to the IEC 61131-2 standard for more information about short-
circuit-proof devices.
Note
Because the NI-9472 includes internal flyback diodes, you do not
need to add external diodes when connecting to switching devices that
store energy.
ni.com
12
NI-9472 Getting Started