Flash Memory Circuit Exception

What does CPF12 mean?

An exception occurred within the drive's flash memory circuit, which stores firmware and other critical data. This indicates a severe internal error that may require firmware reinstallation.

Click steps to track your progress.

1. 1

   Verify input power supply voltage and stability at the drive's input terminals against the specified nominal voltage range.

2. 2

   Inspect the drive's fault history log for any preceding or concurrent fault codes that might provide additional context to the CPF12 exception.

3. 3

   Attempt to reinstall the drive's firmware using the appropriate Yaskawa software tools and procedures as detailed in the technical manual.

4. 4

   Perform a drive parameter initialization (factory reset), ensuring all critical operational parameters are backed up beforehand, and then re-enter the necessary parameters.