F07515 fault in siemens 6RA80 DC Drive indicate that the Power unit and motor incorrectly connected. This means a power unit (via PDS) was assigned to a motor (via MDS) in a drive data set that is not connected in the target topology. It is possible that a motor has not been assigned to the power unit (p0131).

1. Assign the drive data set to a combination of motor and power unit permitted by the target topology.
2. Adapt the target topology.
3. If required, for a missing motor, recreate the component (drive Wizard).