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.
- 3
Replace the control board if the EEPROM error persists, suggesting a hardware defect.
Source: Yaskawa F7 Drive
View Official PDF