Caution
Connecting an external power supply to a
DO terminal may cause the module to power on.
Carefully check all DO and Vsup connections.
Note
Refer to the device datasheet on
for more information about I/O protection ratings.
Analog Input Protection
The NI 9351 provides overvoltage protection for each AI
channel.
Some overvoltage conditions may cause an internal temperature
fault, forcing the module into Fail-safe Mode. Conditions that
may cause an internal temperature fault include:
•
A fault on a single channel exceeding 20 V
•
Faults on multiple channels
For fault voltage derating above 55 °C, refer to the device
datasheet on
.
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ni.com
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NI 9351 Getting Started Guide