Cause : Program loading detected error comes when the drive is attempting to load a program but encounters an error. This fault comes due to corrupt program or communication issue in drive.

"PGLF" Program loading detected fault in Schneider ATV950 drive indicate an "Program loading detected error". This means an issue with loading the drive's firmware or configuration program.

Follow These Steps to Correct a PGLF Program Loading Detected Fault:

1. Verify Firmware Version:

   • Current Firmware: Check the firmware version currently installed on the drive. Ensure it is the correct and latest version for your drive model.
   • Firmware Compatibility: Confirm that the firmware version is compatible with your drive and its configuration.

2. Inspect the Update Process:

   • Update Completion: If a firmware update was recently performed, ensure that it was completed successfully without interruptions.
   • Reattempt Update: If the update was interrupted or failed, attempt to reload the firmware according to the manufacturer’s instructions.

3. Check Drive Memory:

   • Memory Integrity: Ensure that the drive’s internal memory is not corrupted. This can be done using diagnostic tools provided by Schneider Electric.
   • Configuration Data: Verify that the configuration data is correctly loaded and not corrupted.

4. Reload Configuration:

   • Backup Configuration: If you have a backup of the drive’s configuration, reload it to the drive. This can help resolve issues caused by corrupted or incorrect settings.
   • Factory Reset: If no backup is available, perform a factory reset to restore the drive to its default settings. Reconfigure the drive afterward.

5. Inspect External Devices:

   • Communication Devices: Ensure that any external communication devices (e.g., HMIs, PLCs) connected to the drive are functioning correctly and not causing conflicts during the loading process.
   • Connection Integrity: Check all connections between the drive and external devices to ensure they are secure and functioning properly.