What can cause InF6 (Internal Error 6) fault on ATV600 or ATV900 Series Process drives?

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Issue:
Getting InF6 fault on Process drives.

Product Line:
ATV630, ATV930, ATV600, ATV900

Environment:
All

Cause:
NA

Resolution:
Unknown or Incompatible Option Board installed.
The compatibility of the option card(s) is monitored internally, if an unknown card is installed, INF6 error is triggered.

Probable causes:
The option module installed in the drive is not recognized.
The removable control terminal modules (if existing) are not present or not recognized.
The embedded Ethernet adapter is not recognized.

Remedies:
Verify the catalog number and compatibility of the option module.
Plug the removable control terminal modules after the drive has been switched off.