Illegal FC configuration

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The installed control card and power card within the frequency converter are incompatible with each other. This indicates an incorrect pairing of components, potentially due to wrong spare parts or an assembly error. The drive cannot operate with this configuration and requires corrective action.

• The installed control card (e.g., MCB101) and power card (e.g., VLT5000 series) are physically incompatible models.
• A spare control card or power card with incorrect firmware version for the specific drive model has been installed.
• In rare cases, corrupted internal identification data on either the control or power card after a severe power event.

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1. 1

   1. Power down the drive and verify the part numbers and model designations of both the control card and the power card.

2. 2

   2. Cross-reference the verified part numbers against the drive's documentation or manufacturer's compatibility matrix.

3. 3

   3. If a mismatch is identified, replace the incompatible component (control card or power card) with the correct variant.

4. 4

   4. Attempt a firmware update on the control card to the latest compatible version for the installed power hardware.