F30080 fault in siemens 6RA80 DC Drive indicate that the current increasing too quickly. This means the power unit has detected an excessive rate of rise in the overvoltage range.

1. Check the motor data - if required, carry out commissioning.
2. Check the motor circuit configuration (star-delta)
3. U/f operation: Increase up ramp.
4. U/f operation: Check assignment of rated currents of motor and power unit.
5. Check the line supply quality.
6. Check the power cable connections.
7. Check the power cables for short-circuit or ground fault.
8. Check the length of the power cables.
9. Replace power unit.