The Internal Fault LED is red and indicates the module is in Fail-safe Mode. This includes Fail-safe Mode triggered by automatic self-diagnostic faults or user-configurable diagnostic faults.
|LED Color||LED Pattern||Indication|
|Red||Flashes once then pauses||A user-configured fault has triggered Fail-safe Mode.|
|Flashes twice then pauses||A temperature fault has been detected.|
|Flashes three times then pauses||A power fault has been detected.|
|Flashes more than three times then pauses||An internal fault has been detected. Record the number of flashes and contact National Instruments.|
|Off||No Internal Fault has been detected.|