Thermal Shutdown

NI-RFSG supports thermal shutdown monitoring for NI RF signal generator modules. This feature allows the module to detect when it has reached a dangerously high temperature and to then power off, preventing damage to the device.

If safe temperature limits are exceeded, the RF enclosure is powered off, and NI-RFSG returns an error.

Note The PXI/PXIe-5650/5651/5652 is warm to the touch during normal operation. The device should never reach a temperature high enough to cause thermal shutdown unless the fan or vents on the PXI or PXI Express chassis are blocked or the filters on the fans are excessively dusty.

Re-enabling the Device After Thermal Shutdown

Complete the following steps to restore power to the RF enclosure:
  1. Ensure the filters are clean and that you have a clear path for airflow through your PXI or PXI Express chassis.
  2. Review the guidelines in the Maintain Forced-Air Cooling Note to Users that shipped with the device, and make any necessary adjustments to ensure that the chassis can cool the device effectively.
  3. Perform a device reset in MAX by selecting the device in the MAX configuration tree and clicking Reset from the MAX toolbar.
  4. Repeat step 3 for each hardware module.