Siemens A039 fault code meaning

Series: 6RA70

The I2t value of the power unit is too high

DC drive

Meaning: I 2 t value too high. (Valid in all operating states) The alarm is activated if the permissible I2t value for the relevant power unit is reached. At the same time, the current limit is set to P077 × 100% of the rectifier rated DC current. This limit is not removed until the reference falls below 100% of the rectifier rated DC current. See also fault F039 and parameter P075.

Possible causes

Source: 6ra70_c P441