Cause : Internal error 6 (Option) comes when the option module installed in the device is not recognized. This means the removable control terminal modules (if existing) are not present or not recognized.

"INF6" Internal error 6 (option) fault in Schneider drive an "Internal Option Card Fault". This means the drive is having difficulty recognizing or communicating with an option card installed within it.

1. Verify the catalog number and compatibility of the option module.
2. The embedded Ethernet adapter is not recognized.
3. The device firmware is not compatible with the option module.
4. Option module corrupted due to multiple firmware updates.
5. Plug the removable control terminal modules after the device has been switched off.
6. Update the device firmware.