Cause : Boards compatibility comes when the [Pairing password] PPI parameter has been enabled and an option module has been changed. This means the drive is detecting an issue with the compatibility or configuration of option cards installed in the drive.

"HCF" Boards compatibility fault in Schneider drive indicate "Card Pairing Fault". This means the drive is detecting an inconsistency between the control board and any optional cards installed.

1. Refit the original option module.
2. Confirm the configuration by entering the [Pairing password] PPI if the module was changed deliberately.