F70

Power Unit

Allen-Bradley · PowerFlex 4 Adjustable Frequency AC Drive

What does F70 mean?

A fault has been detected within the drive's internal power unit hardware. This indicates a potential malfunction of power components such as the rectifier, DC bus capacitors, or inverter IGBTs.

Source: Allen-Bradley PowerFlex 4 Adjustable Frequency AC Drive

Open Manual (Page 15)