RAM Fault

What does CPF11 mean?

A fault was detected in the drive's Random Access Memory (RAM), which is used for temporary data storage during operation. This can lead to unstable drive performance.

Click steps to track your progress.

1. 1

   Verify supply voltage at the drive's input terminals (L1, L2, L3) for stability and conformity to drive specifications.

2. 2

   Inspect the drive's operating environment, ensuring proper ventilation and that the ambient temperature is within specified limits.

3. 3

   Check the drive's firmware version and verify it is the latest recommended version for the application from Yaskawa.

4. 4

   Perform a controlled power cycle of the drive, removing main power for at least 30 seconds before reapplying.