What causes a flashing P on the ATV21 and ATV212 drives?
What causes a flashing P on the ATV21 and ATV212 drives? Product Line:
Altivar ATV21, ATV212 Environment:
Drive is flashing P on start up
The flashing P means the DC bus is in pre alarm or the drive controller is approaching and overvoltage fault due to a high supply line, regenerative motor braking or a combination of both.
Programming menu Mod button until you see AUF arrow down to F----- enter then find the following F codes.
F626 you can change the overvoltage threshold setting to 150%.
F305 you can disable the overvoltage or change when the drive protects against overvoltage.