Cause: Firmware update function has detected an error comes when the firmware file you're trying to install is damaged or incomplete. A power outage, system crash, or premature removal of the update medium can cause this error.

"InFw" Internal Error 32 fault in Schneider ATV950 drive indicates an issue during the process of updating the device's software. This can be caused by various factors, including corrupted files, hardware problems, or interruptions in the update process.

1. Ensure the firmware file is downloaded correctly and completely.
2. Check for any file corruption or errors.
3. Make sure the device has a stable power supply during the update process.
4. Avoid interruptions like power outages or unplugging the device.