CrF

Capacitor precharge fault

Schneider Electric · ATV32HD11N4 Variable Speed Drive

What does CrF mean?

A fault related to the capacitor precharge circuit, either due to a control issue with the precharge relay or a damaged precharge resistor. This fault prevents the drive from powering up correctly, indicating a critical internal hardware failure.

Source: Schneider Electric ATV32HD11N4 Variable Speed Drive
View Official PDF