CPF03

EEPROM Fault

Yaskawa · F7 Drive

What does CPF03 mean?

The EEPROM check sum was not valid, indicating data corruption in the non-volatile memory. This can be caused by electrical noise or spikes on the control circuit input terminals, compromising the Drive's configuration data integrity.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Replace the control board if the EEPROM error persists, suggesting a hardware defect.

Source: Yaskawa F7 Drive
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