Cause: Internal Error 1 comes when a mismatch between the power board's specifications and the system's requirements. This could be due to several factors, including incorrect configuration, hardware incompatibility, or system overload.

"inF1" Internal Error 1 fault in a Schneider ATV950 drive indicates an a compatibility issue between the power board and other system components. The system's software or firmware might have incorrect settings related to power board parameters.

Here’s a structured approach to troubleshoot and resolve the inF1 fault:

1. Power Cycle the Drive:

• Restart: Power off the drive completely, wait for a few minutes, and then power it back on. Sometimes, a simple restart can clear transient errors.

2. Check Event Logs:

• Review Logs: Look into the drive’s event logs to gather more information about the inF1 fault. Additional error codes or messages may provide clues about the underlying issue.

3. Firmware Check:

• Firmware Version: Ensure that the drive is running the latest firmware version. Older firmware versions might have bugs or compatibility issues that could cause internal errors.
• Firmware Update: If an update is available, follow Schneider Electric’s procedures to update the firmware. Ensure the process is not interrupted.

4. Inspect Hardware:

• Visual Inspection: Check for any visible signs of damage, such as burnt components, loose connections, or damaged boards.
• Connections: Ensure that all internal and external connections are secure and properly seated.

5. Reset to Factory Settings:

• Factory Reset: If the fault persists, consider performing a factory reset of the drive. This will revert all settings to their defaults, which can help resolve configuration-related issues. Be sure to back up the current configuration before proceeding.